Search for: "enzymes" - 250 articles found

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Clinical Chemistry

BS-430 Clinical Chemistry Analyzer

Sample throughput: Constant 420 tests / h, up to 626 tests / h with ISEDimensions: 1.050 × 1.150 × 720 mm (w × h × d)Highlights:   Large loading capacity: 92 reagent positions, 102 sample positionsHbA1c smart sampling: supports HbA1c onboard hemolysisAdvanced software platform: auto QC, auto reflex, substrate depletion & enzyme linearity extension, etc.Quick…

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Article • Knowledge gaps in gender medicine

Covid-19 and sex: higher mortality of male patients

The Covid-19 pandemic has affected scientific research in numerous ways – for example by highlighting knowledge gaps in gender medicine. In many studies differences in morbidity and mortality between women and men surfaced incidentally. While the extent and causes of these differences remain largely unexplored, the preliminary insights confirm the need for further research.

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Article • Trade fair presence

Taiwan blends tech and tradition at Medica 2023

AI features for automation, integrated systems and more: the role of medical technology has never been as vital as today, and MedTech companies from Taiwan are putting their best foot forward to contribute. At the 2023 Medica trade fair, visitors of the Taiwanese pavilion not only had the opportunity to see the latest medical products on display, but also get acquainted with Taiwanese culture in…

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Article • Progress, limitations, and opportunities

Precision oncology: incredible potential, but not a miracle cure

Unanswered questions are hampering clinicians in their efforts to get the best out of a precision medicine approach for their patients. Speaking at the Genomics and Precision Medicine Expo in London at the end of May, cancer educator Dr Elaine Vickers said the benefits of being matched to an investigational drug remain questionable for most people with advanced cancer.

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Article • Confirming initial positive findings

First-tier rapid serology testing for Lyme disease

Lyme disease, the most common tick-transmitted bacterial infection in the world, is challenging to diagnose. Initial early-stage symptoms may include skin rash, fever, headache, fatigue, swollen lymph nodes, and/or body and joint aches. However, these symptoms are also associated with many other diseases and medical conditions.

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News • Assessing bone quality via blood sampling

New device for diagnosing bone fragility

A new device for diagnosing bone fragility invented by the University Hospitals of Geneva (HUG) and the University of Geneva (UNIGE) has been approved for marketing in the European Economic Area and Switzerland. The device is based on a new approach to assessing bone quality via blood sampling.

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Article • Overheard at AACC

The complexities of drug testing in urine and hair

Urine screening tests using only immunoassays are the most common procedures used to identify drug abuse. They are inexpensive, automated, and produce rapid results. But they may generate false-positive or false-negative results, which vary based on the drug, drug class, and the assay used. Hair toxicology analysis is another form of drug testing which, unlike urine tests, enable analysis of drug…

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Sponsored • DBS PEth analysis

Fully automated and hematoctrit corrected phosphatidylethanol analysis

The Swiss-based CAMAG DBS Laboratory in ­collaboration with the Institute of Forensic ­Medicine in Bern, Switzerland, has developed a novel approach for the fully automated analysis of the direct alcohol marker phosphatidylethanol (PEth) in dried blood spots (DBS). The use of a DBS autosampler with an embedded hematocrit (HCT) scanner combined with an LC-MS system permits analysis of large…

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Article • Mass spec, qPCR and more

Newborn screening: early detection – new diagnostic possibilities

Since its introduction around 60 years ago, the screening of newborn babies for immune, hormone and metabolic disorders has prevented many people from experiencing severe disease progression. The scope of systematic early testing has been significantly enhanced through mass spectrometry (MS). In our interview, Professor Uta Ceglarek, one of the driving forces behind the introduction of MS…

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Sponsored • Trade fair presence

A myriad of French innovations at Medica 2021

This year as every year, the very best in global HealthTech will be converging on Dusseldorf for the Medica trade fair. With more than 127 companies attending the event from November 15-18, France will have one of the largest contingents there. Grouped together under the brand umbrella of “French Healthcare”, the French MedTech companies will be presenting their many innovations to industry…

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News • Resistance mechanism discovered

How staphylococci protect themselves against antibiotics

The skin bacterium Staphylococcus aureus often develops antibiotic resistance. It can then cause infections that are difficult to treat. Researchers at the University of Bonn have uncovered an ingenious way in which a certain strain of Staphylococcus aureus protects itself against the important antibiotic vancomycin. The results have now been published in the journal Microbiology Spectrum.

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News • Altered bacterial function

Accumulation of drugs in the gut may reduce their effectiveness

Common medications can accumulate in gut bacteria, a new study has found, altering bacterial function and potentially reducing the medications’ effectiveness. These interactions - seen for many drugs including those used to treat depression, diabetes, and asthma - could help researchers to better understand how drug effectiveness and side-effects differ between individuals. The study is…

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News • Nephrolith research

Fatty liver disease promotes formation of kidney stones

Non-alcoholic fatty liver disease (NAFLD) is the most common liver disease in western countries, with an increasing incidence worldwide. Consequences of NAFLD can also include kidney disease and kidney stones, although the mechanisms for the development of these kidney complications as a result of NAFLD have not yet been fully explained. Researchers at the Leibniz Research Centre for Working…

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News • Potential for pan-variant therapies

SARS-CoV-2 might have a 'sugar coated' weak spot

Researchers identify two sugar-binding proteins that impede the viral entry of circulating SARS-CoV-2 variants. The team, spearheaded by researchers at IMBA – Institute of Molecular Biotechnology of the Austrian Academy of Sciences – may have found the “Achilles’ heel” of the virus, with potential for pan-variant therapeutic interventions. The findings are now published in the EMBO…

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News • Cell delivery vehicles

Bio-inspired nanocontainers could enter cells and release their medical cargo

Nanocontainers can transport substances into cells where they can then take effect. This is the method used in, for example, the mRNA vaccines currently being employed against Covid-19 as well as certain cancer drugs. In research, similar transporters can also be used to deliver labelled substances into cells in order to study basic cellular functions. To take advantage of their full potential,…

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News • Genome editing

Using CRISPR to speed up Covid-19 testing

A research team led by scientists in the labs of Jennifer Doudna, David Savage and Patrick Hsu at the University of California, Berkeley, is aiming to develop a rapid Covid-19 diagnostic test that is much faster and easier to deploy than qRT-PCR. It has now combined two different types of CRISPR enzymes to create an assay that can detect small amounts of viral RNA in less than an hour. Doudna…

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News • Coronavirus protein and antibody detection

Bioluminescence lights up traces of Covid-19 in the blood

Home test kits to check for Covid-19 spike proteins and anti-Covid-19 antibodies are fast and simple to use but lack the sensitivity and accuracy of laboratory tests. Researchers from Eindhoven University of Technology with Utrecht University have developed a new type of sensor that combines the sensitivity and accuracy of current laboratory-based measurements with the speed and low-cost of…

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News • Hydrogel framework

Synthetic tissue with growing blood vessels developed

Using lab-created tissue to heal or replace damaged organs is one of the great visions for the future of medicine. Synthetic materials could be suitable as scaffolding for tissue because, unlike natural tissues, they remain stable in the organism long enough for the body to form new natural structures. A fundamental requirement for functional tissue is that blood vessels must be able to grow in…

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News • MSI tumors

Vaccination against hereditary colorectal cancer shows promise

Scientists from the German Cancer Research Center and Heidelberg University Hospital have for the first time been able to delay the development of hereditary colorectal cancer with a protective vaccination. Mice with a hereditary predisposition to colorectal cancer survived significantly longer after vaccination than unvaccinated animals. Combining the vaccination with an anti-inflammatory drug…

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News • Mechanical inactivation

'Nano traps' to lock up and neutralize viruses

To date, there are no effective antidotes against most virus infections. An interdisciplinary research team at the Technical University of Munich (TUM) has now developed a new approach: they engulf and neutralize viruses with nano-capsules tailored from genetic material using the DNA origami method. The strategy has already been tested against hepatitis and adeno-associated viruses in cell…

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Article • AMR Insights platform

Antibiotic resistance: a global problem in urgent need of solutions

Antibiotics have been at the heart of modern healthcare since the 1950s. They are prescribed prior to an operation to minimise the risk of infection after the operation. Or antibiotics are prescribed to fight an infection. This practice, which might seem straightforward at first glance, has proven to cause a number of problems itself: Over the last twenty years, it has become increasingly clear…

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News • Unprecedented improvements

Gene therapy 'reprograms' cells to reverse AADC deficiency

A novel method of gene therapy is helping children born with a rare genetic disorder called AADC deficiency that causes severe physical and developmental disabilities. The study, led by researchers at The Ohio State University Wexner Medical Center and The Ohio State University College of Medicine, offers new hope to those living with incurable genetic and neurodegenerative diseases.

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Article • Fighting cancer together

New interdisciplinary approaches to intervention & immuno-oncology

Over recent years interventional oncology (IO), as a subspecialty of interventional radiology, has become a standard component of many cancer therapies. The broad range of minimally invasive methods – and their results – are often comparable to those of traditional approaches, such as surgery, chemotherapy or radiotherapy, e.g. with regard to hepatocellular cancer (HCC), oligometastatic…

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News • Disease of smallest heart blood vessels

Microvascular angina: the global health problem you've never heard of

For the first time, a prospective, international study has shown that chest pain caused by problems with the very small vessels supplying blood to the heart is an important health problem that increases the risk of heart attacks, stroke and death due to cardiovascular reasons. The study, which is published in the European Heart Journal, recruited 686 patients from 14 institutions in seven…

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Article • dPCR and HSAFM

Low-cost technique for missed genetic mutations

A new low-cost method targeting genetic mutations often missed by existing diagnostic approaches has been developed. Researchers at Virginia Commonwealth University (VCU) in the United States noted that most rearrangement mutations implicated in cancer and neurological diseases fall between what can be detected by DNA sequence reads and optical microscopy methods. The new technique combines…

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News • Medication testing

'Airway-on-a-chip' to find new Covid-19 drugs

A collaboration spanning four research labs and hundreds of miles has used the organ-on-a-chip (Organ Chip) technology from the Wyss institute at Harvard Univesity to identify the antimalarial drug amodiaquine as a potent inhibitor of infection with SARS-CoV-2, the virus that causes Covid-19. The Organ Chip-based drug testing ecosystem established by the collaboration greatly streamlines the…

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Video • Bioprinting breakthrough

3D printed mini pancreas to help fight diabetes

First you see it as a transparent shape on a computer screen – a small electronic replica of the human pancreas. Then just 30 seconds later the tissue is printed out on a bioprinter, blood vessels and all, from a sample of human stem cells. This amazing feat is possible thanks to new technology created at EPFL’s Laboratory of Applied Photonics Devices (LAPD) and further developed by…

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News • Helminths

Worm infestation in the gut can lower viral defenses

Infection with parasitic intestinal worms (helminths) can apparently cause sexually transmitted viral in-fections to be much more severe elsewhere in the body. This is shown by a study led by the Universities of Cape Town and Bonn. According to the study, helminth-infected mice developed significantly more severe symptoms after infection with a genital herpes viruses (Herpes Simplex Virus). The…

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News • CRISPR-Cas9

An 'on-off switch' for gene editing

Over the past decade, the CRISPR-Cas9 gene editing system has revolutionized genetic engineering, allowing scientists to make targeted changes to organisms’ DNA. While the system could potentially be useful in treating a variety of diseases, CRISPR-Cas9 editing involves cutting DNA strands, leading to permanent changes to the cell’s genetic material. Now, in a paper published online in Cell,…

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News • Bioorganic chemistry

Why M. tuberculosis is so resistant to drugs and immune defenses

A consortium of researchers from Russia, Belarus, Japan, Germany and France led by the Skolkovo Institute of Science and Technology have uncovered the way in which Mycobacterium tuberculosis survives in iron-deficient conditions by utilizing rubredoxin B, a protein from a rubredoxin family that play an important role in adaptation to changing environmental conditions.

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News • Bioengineering

Producing transplantable livers in the laboratory

Researchers at the Human Genome and Stem Cell Research Center (HUG-CELL), hosted by the University of São Paulo’s Institute of Biosciences (IB-USP) in Brazil, have developed a technique to reconstruct and produce livers in the laboratory. The proof-of-concept study was conducted with rat livers. In the next stage of their research, the scientists will adapt the technique for the production of…

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News • Malignant brain tumor

Successful test for mutation-specific vaccine against diffuse gliomas

Tumor vaccines can help the body fight cancer. Mutations in the tumor genome often lead to protein changes that are typical of cancer. A vaccine can alert the patients' immune system to these mutated proteins. For the first time, physicians and cancer researchers from Heidelberg and Mannheim have now carried out a clinical trial to test a mutation-specific vaccine against malignant brain tumors.…

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News • Coronavirus research

Promising SARS-CoV-2 inhibitors discovered

A research team of pharmacists at the University of Bonn has discovered two families of active substances that can block the replication of the SARS-CoV-2 coronavirus. The drug candidates are able to switch off the the key enzyme of the virus, the so-called main protease. The study is based on laboratory experiments. Extensive clinical trials are still required for their further development as…

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Sponsored • Product of the Month

Glucose stabilisation right from the beginning

Plasma glucose levels are essential for the evaluation of diabetes mellitus as well as gestational diabetes. Diabetes mellitus is one of the most common metabolic disorders in the world. The breakdown of glucose (glycolysis) in venous blood samples is of great significance in pre-analytics, particularly in relation to the diagnosis of diabetes mellitus and gestational diabetes.

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News • Infection research

Mutations help bacteria resist antibiotic treatment

Bacteria have many ways to evade the antibiotics that we use against them. Each year, at least 2.8 million people in the United States develop an antibiotic-resistant infection, and more than 35,000 people die from such infections, according to the U.S. Centers for Disease Control. Most of the mutations known to confer resistance occur in the genes targeted by a particular antibiotic. Other…

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News • Brain cancer research

New approach could stop glioblastoma growth

Inhibiting a key enzyme that controls a large network of proteins important in cell division and growth, paves the way for a new class of drugs that could stop glioblastoma, a deadly brain cancer, from growing. Researchers at Princess Margaret Cancer Centre, the Hospital for Sick Children (SickKids) and University of Toronto (U of T), showed that chemically inhibiting the enzyme PRMT5 can…

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News • Lymphocytosis research

Tracing the onset of leukaemia

B-cell lymphocytosis, a condition in which individuals have increased levels of particular white blood cells, in some cases leads to blood cancer. As an international team of researchers now shows in samples from patients, both diseases exhibit similar epigenetic signatures that are forming very early during the course of the disease. Chronic leukemias often start insidiously. White blood cells…

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News • Valid for breast as well as blood cancers

Surprising benefits discovered in new cancer treatment

One more piece of the puzzle has fallen into place behind a new drug whose anti-cancer potential was developed at the University of Alberta and is set to begin human trials this year, thanks to newly published research. “The results provide more justification and rationale for starting the clinical trial in May,” said first author John Mackey, professor and director of oncology clinical…

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News • Influence of gut bacteria

How our gut microbiome affects Covid-19 severity

The variety and volume of bacteria in the gut, known as the microbiome, may influence the severity of Covid-19 as well as the magnitude of the immune system response to the infection, suggests research published online in the journal Gut. Imbalances in the make-up of the microbiome may also be implicated in persisting inflammatory symptoms, dubbed ‘long Covid’, the findings suggest. Covid-19…

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News • Enzyme Linked Immunosorbent Assay

Startup develops breakthrough IgG antibody test for Covid-19

ZTA Biotech, a Budapest-based biotech startup, has developed a Covid-19 antibody (IgG) test using the ELISA protocol. This new detection method represents a great step forward in determining if patients have had a coronavirus infection and if they might still have immunity to the disease. Early results have proven 100% in specificity after testing 280 samples, and 100% sensitivity by testing 260…

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Video • Computer model vs. Covid-19

Discovering new weaknesses of SARS-CoV-2 through bioinformatics

The search for antiviral agents against the new coronavirus is in full swing. Using a novel approach, Bioinformaticians have now discovered a weakness in the virus that could be exploited for drug development. In a computer model, the scientists discovered a human enzyme that is crucial for the virus. When it was switched off in the model, the virus could no longer multiply.

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News • Tackling colon cancer

Researchers find 'Achilles’ heel' of cancer stem cells

Colon cancer stem cells have one weak spot: the enzyme Mll1. An MDC team led by Walter Birchmeier has now shown in Nature Communications that blocking this protein prevents the development of new tumors in the body. Since colonoscopies were introduced in Germany for early cancer detection, the number of diagnoses of advanced cancer every year has decreased, as precancerous lesions can now be…

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News • Stepstone for new treatments

Regulatory RNAs promote breast cancer metastasis

Cold Spring Harbor Laboratory (CSHL) scientists have discovered a gene-regulating snippet of RNA that may contribute to the spread of many breast cancers. In animal experiments, the researchers could reduce the growth of metastatic tumors with a molecule designed to target that RNA and trigger its destruction. The same strategy, they say, could be used to develop a new breast cancer treatment for…

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Video • Resistance pulse

New study reveals how melanoma cells survive targeted therapies

In recent years, targeted therapies have cemented their place as some of the most important tools in cancer treatment. These medicines are designed to block specific signals that tumor cells use to grow and spread, while at the same time leaving normal cells unharmed. Targeted therapies can significantly extend patients’ lives, but the benefits are often only temporary. Over time, many cancers…

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Article • Coronavirus imaging

Covid-19: Is CT more sensitive than PCR testing?

Covid-19 causes characteristic changes in lung tissue visible in CT scans and chest radiographs, known as “ground-glass” opacities. Imaging is now considered a valid alternative, possibly even superior to RT-PCR. ‘This sparked an international debate about the role of CT in the diagnostic work-up of Covid-19,’ said radiologist Professor Cornelia Schäfer-Prokop.

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Article • Detecting coronavirus infections

Covid-19: CRISPR-based test gives GPs quick results

Recent research in Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) has identified two enzymes that can detect Covid-19 RNA as simply as a pregnancy test Jesús Pla, an eminent microbiologist at the Complutense University in Madrid, explained in our exclusive interview. CRISPR technology could help alleviate workloads in packed hospitals and expand testing to primary care and…

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Sponsored • Cardiac troponin I concentration measured at POC

Triage aided by a quick sensitive test

Large proportions of patients can be safely triaged either to rule out discharge or rule in lifesaving management – if following the European Society of Cardiology (ESC) Guidelines Class I recommendation of two serial measurements of hs-cTnI on admission and after one hour, if there are assay specific cut off values for the 0/1 algorithms. The Pathfast hs-cTNI assay is an approved system to…

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News • Biomaterial research

Wound-healing hydrogel to improve skin tissue repair

Researchers at Duke University and the University of California, Los Angeles, have developed a biomaterial that significantly reduces scar formation after wounding, leading to more effective skin healing. This new material, which quickly degrades once the wound has closed, demonstrates that activating an adaptive immune response can trigger regenerative wound healing, leaving behind stronger and…

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News • At the heart of science

Scientific research has to be ‘passion-driven’, says Nobel Prize winner

Scientists cannot be expected to drop everything they’re working on to turn their attention to beating COVID-19, according to the winner of the 2019 Nobel Prize in Physiology or Medicine, Professor Sir Peter Ratcliffe. Speaking before he delivered the prestigious Michel Clavel lecture to the 32nd EORTC-NCI-AACR Symposium on Molecular Targets and Cancer Therapeutics, which was due to take place…

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News • Revealing innovation potential of new antibiotics

Using proteomic profiling to accelerate drug development

The fight against bacterial infections, especially those caused by resistant pathogens, is in full swing with the search for new antibiotic agents. The aim is to identify substances that attack the pathogens in a truly novel way. The team at the Center for Systems-Based Antibiotic Research (Cesar) at Ruhr-Universität Bochum (RUB) has described in two publications how assess if a new antibiotic…

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News • Lipids, lysosomes, and autophagy

Researchers find the keys to preventing kidney injury

Human cells need to work like well-oiled machines to keep our bodies running as they should. Waste products such as misfolded proteins, damaged cellular components, and carbohydrates get in the way and must be quickly disposed of. Dealing with this cellular “trash” are spherical, membrane-bound organelles called lysosomes filled with a mixture of potent enzymes. In a process called autophagy,…

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News • Coronavirus

“Hotspots” of a corona infection in the human body

An infection with the coronavirus SARS-CoV-2 can affect multiple organs. With this in mind, researchers of the German Center for Neurodegenerative Diseases (DZNE) and Cornell University in the US have investigated cellular factors that could be significant for an infection. To this end, they analysed the activity of 28 specific genes in a wide range of human tissues.

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News • After coronavirus infection

Study reveals why people with COVID-19 may lose their sense of smell

Researchers studying tissue removed from patients noses during surgery believe they may have discovered the reason why so many people with COVID-19 lose their sense of smell, even when they have no other symptoms. In their experiments they found extremely high levels of angiotensin converting enzyme II (ACE-2) only in the area of the nose responsible for smelling. This Enzyme is thought to be the…

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News • Electrostatic interactions

New research exposes weak spot in SARS-CoV-2

Northwestern University researchers have uncovered a new vulnerability in the novel coronavirus’ infamous spike protein — illuminating a relatively simple, potential treatment pathway. The spike protein contains the virus’ binding site, which adheres to host cells and enables the virus to enter and infect the body. Using nanometer-level simulations, the researchers discovered a positively…

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Article • Re-evaluation of the coronavirus disease

COVID-19: A tale of two conditions

The SARS CoV-2 virus which causes COVID-19 may have been named prematurely. As more has become known about the infection, the severe disease does not appear to be a respiratory syndrome at all. Patients who only have a respiratory illness tend not to have a severe condition, while patients who develop a severe condition tend to have non-respiratory conditions, primarily thrombotic or hyper-immune…

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News • Oncology

How cancer spreads in blood

A new study sheds light on proteins in particles called extracellular vesicles, which are released by tumor cells into the bloodstream and promote the spread of cancer. The findings suggest how a blood test involving these vesicles might be used to diagnose cancer in the future, avoiding the need for invasive surgical biopsies.

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News • New mechanism discovered

UPR: Stress raises cancer cells' chemo resistance

Resistance of cancer cells against therapeutic agents is a major cause of treatment failure, especially in recurrent diseases. An international team around the biochemists Robert Ahrends from the University of Vienna and Jan Medenbach from the University of Regensburg identified a novel mechanism of chemoresistance which has now been published in "Nature Communications". It is driven by…

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News • Increased risk for severe infections

Up in smoke: Smoking increases SARS-CoV-2 receptors in the lung

New research suggests that cigarette smoke spurs the lungs to make more ACE2 (angiotensin-converting enzyme 2), the protein that the coronavirus responsible for COVID-19 grabs and uses to enter human cells. The findings, reported in the journal Developmental Cell, may explain why smokers appear to be particularly vulnerable to severe infections. The analysis also indicates that the change is…

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News • Hypertension

High blood pressure increases COVID-19 death risk

Patients with raised blood pressure have a two-fold increased risk of dying from the coronavirus COVID-19 compared to patients without high blood pressure, according to new research published in the European Heart Journal. In addition, the study found that patients with high blood pressure who were not taking medication to control the condition were at even greater risk of dying from COVID-19.

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News • Deadly mechanism uncovered

Inside COVID-19's 'cytokine storm'

Leading immunologists in Japan are proposing a possible molecular mechanism that causes massive release of proinflammatory cytokines, or a cytokine storm, leading to the acute respiratory distress syndrome (ARDS) in COVID-19 patients. Their suggestions, published in the journal Immunity, are based on recent findings that explain how SARS-CoV-2 enters human cells.

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News • Programmed cell death

Cellular mechanism protecting against cancer

Susanne Hellmuth and Olaf Stemmann from the Chair of Genetics at the University of Bayreuth have discovered a natural protective mechanism that leads to the programmed death of potentially diseased cells.

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Article • Seeking an ideal lab life

New and old challenges in laboratory medicine

The Central Laboratory at the Medical University Hanover, Germany, is prepared to handle virtually any clinical chemistry task, from a routine test to the most complex analysis. Equipped with state-of-the-art technology and thanks to a high degree of automation, the team can process more than 3,000 specimens, mostly blood and urine, in a single day. Professor Ralf Lichtinghagen, European…

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News • Coronavirus treatment

Promising trial drug blocks early stages of COVID-19

An international team led by University of British Columbia (UBC) researcher Dr. Josef Penninger has found a trial drug that effectively blocks the cellular door SARS-CoV-2 uses to infect its hosts. The findings, published in Cell, hold promise as a treatment capable of stopping early infection of the novel coronavirus that, as of April 2, has affected more than 981,000 people and claimed the…

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News • New sensor tech

A more reliable way to early detect lung tumours

People who are at high risk of developing lung cancer, such as heavy smokers, are routinely screened with computed tomography (CT), which can detect tumors in the lungs. However, this test has an extremely high rate of false positives, as it also picks up benign nodules in the lungs. Researchers at the Massachussetts Institute of Technology (MIT) have now developed a new approach to early…

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Article • Coronavirus disease research

Seeking a COVID-19 antidote: the potential of ACE2

As coronavirus disease COVID-19 continues to jet and alight invisibly around the globe, scientists now report that the virus has mutated to become two strains: the older ‘S-type’ appears milder and less infectious, while the later-emerging ‘L-type’, is more aggressive, spreads more quickly, and currently accounts for about 70 per cent of cases. Worldwide, medical researchers are exploring…

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News • Surprising discovery

Fatty liver disease can also affect lean people

Non-alcoholic fatty liver disease (NAFLD) is mostly diagnosed in overweight and obese people. However, severe forms of NAFLD can also be detected in rare genetic diseases such as lipodystrophy or in patients with HIV, putting them at a high risk for developing liver failure, diabetes and cardiovascular diseases. Norbert Stefan and colleagues have now detected a yet unknown cause of NAFLD in lean…

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News • Lab equipment

New high-precision digital reagent dispensers launched at SLAS 2020

Scientists working across drug metabolism and pharmacokinetics, bioanalytical, pre-clinical and clinical trial applications can now access a range of digital reagent dispensers designed to enable assay miniaturization, boost productivity and improve accuracy of results. Offering enhanced dispensing precision, the new systems use ten times less reagent compared to manual pipetting workflows,…

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News • MRI & machine learning

A look into the genome of brain tumors

Researchers at Osaka University have developed a computer method that uses magnetic resonance imaging (MRI) and machine learning to rapidly forecast genetic mutations in glioma tumors, which occur in the brain or spine. The work may help glioma patients to receive more suitable treatment faster, giving better outcomes. The research was recently published in Scientific Reports. Cancer treatment…

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Article • Lab advances against doping

A powerful tool for sports drug testing

Due to the scientific and technical developments in recombinant DNA technology and protein engineering since the early 1980s, therapeutic proteins have emerged as one of the most important classes of new pharmaceuticals. Currently, more than 200 protein and peptide based drugs have gained approval by the USA’s Food and Drug Administration (FDA) and many more are under preclinical or clinical…

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Sponsored • Screening for the use of 5-FU anti-cancer drug

Fully-automated DPD deficiency testing

Each year almost 80,000 new patients in France alone receive fluoropyrimidines, a group of anti-cancer drugs including 5-FU which is normally administered intravenously to treat digestive, breast and head and neck cancer. However, fluoropyrimidines-based chemotherapies can cause severe toxicities (incidence at around 20%) and sometimes lethal toxicity (incidence between 0.1 and 1%) with part of…

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News • Determining protein structures

3Dseq: New technique to solve biomedical puzzles

“Proteins are the workers in the cell, and it's important to know their shape,” says Chris Sander, PhD, director of Dana-Farber’s cBio Center in the Department of Data Sciences. Sander and his colleagues have now demonstrated a powerful “experimental evolution” method to discover details of protein shape and function, and the method may find uses across a very broad spectrum of…

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News • Blood thinning 2.0

Developing next generation anticoagulants

A University of Leeds spin-out company has secured £3.14m to develop a next generation drug that aims to prevent blood clots forming, without the risk of bleeding present in currently available drugs. Currently, anticoagulants have a relatively narrow margin between beneficial effects and undesirable bleeding, so new approaches are in demand. These could allow more patients that have a higher…

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News • New insights into brain diseases

Inflammatory processes drive Alzheimer's progression

Inflammation drives the progression of neurodegenerative brain diseases and plays a major role in the accumulation of tau proteins within neurons. An international research team led by the German Center for Neurodegenerative Diseases (DZNE) and the University of Bonn comes to this conclusion in the journal “Nature”. The findings are based on the analyses of human brain tissue and further lab…

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Article • Smart patch

ELSAH: A wearable to determine biomarkers

The EU four-year project ELSAH, which began at the dawn of 2019, aims to design a wearable to enable continuous determination of biomarker concentrations. Project coordinator Dr Joerg Schotter, Molecular Diagnostics, Centre for Health & Bioresources, AIT Austrian Institute of Technology GmbH, explains the project’s objectives and potential applications for the planned wearable.

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News • Iron dependent cell death

Ferroptosis could be key for new anticancer approach

A team of researchers lead by Helmholtz Zentrum München and the University of Würzburg identified an enzyme as a novel and strong inhibitor of ferroptosis, the iron dependent form of cell death: ferroptosis suppressor protein-1, short FSP1. This protein is expressed in a variety of cancer cell lines and therefore represents an attractive drug target for cancer treatment.

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News • CRISPR 2.0

Is 'prime editing' the next step in gene editing?

A team from the Broad Institute of MIT and Harvard has developed a new CRISPR genome-editing approach by combining two of the most important proteins in molecular biology – CRISPR-Cas9 and a reverse transcriptase – into a single machine. The system, called “prime editing,” is capable of directly editing human cells in a precise, efficient, and highly versatile fashion. The approach…

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News • Natural nanocapsules

A new approach for tackling superbugs – without antibiotics

Scientists have uncovered a novel antibiotic-free approach that could help prevent and treat one of the most widespread bacterial pathogens, using nanocapsules made of natural ingredients. Helicobacter pylori is a bacterial pathogen carried by 4.4 billion people worldwide, with the highest prevalence in Africa, Latin America and the Caribbean. Although the majority of infections show no symptoms,…

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News • Danger in the womb

Xenoestrogens in the womb: a burden for babies

Early childhood life in the womb is particularly sensitive to the effects of environmental pollutants. A team from Empa and the University of Vienna has now for the first time been able to show how a pollutant from contaminated food – the environmental estrogen zearalenone – spreads in the womb and is metabolized into harmful metabolites. Xenoestrogens are absorbed through the environment,…

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News • ClpX-ClpP protein complex

Weak spot in pathogens could be key in new antibiotics

Antibiotics are still the most important weapon for combatting bacterial infections. But medical science is running out of “ammunition” because of more and more frequently occurring resistances. A research team has now elucidated the structure of the proteolytic complex ClpX-ClpP. This is a key to development of innovative antibiotics which target the degradation process of defective proteins…

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News • When painkillers won't help

A new approach to pancreas pain treatment

One of the worst symptoms associated with inflammation or cancer of the pancreas is severe chronic pain. Pancreatic pain is difficult to treat, because many painkillers prove ineffective in pancreatic patients. In a recent study, a team at the Technical University of Munich (TUM) discovered the cause of this phenomenon for the first time: a particular neuroenzyme in the body is present in the…

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News • Rare lung disease

FDA approval for scleroderma treatment

The U.S. Food and Drug Administration approved Ofev (nintedanib) capsules to slow the rate of decline in pulmonary function in adults with interstitial lung disease associated with systemic sclerosis or scleroderma, called SSc-ILD. It is the first FDA-approved treatment for this rare lung condition. “Patients suffering from scleroderma need effective therapies, and the FDA supports the efforts…

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News • Psychological treatment

New PTSD meds take advantage of body's own cannabinoids

A medication that boosts the body’s own cannabis-like substances, endocannabinoids, shows promise to help the brain un-learn fear memories when these are no longer meaningful. This according to an early-stage, experimental study on healthy volunteers at Linköping University. The new findings give hope that a new treatment can be developed for post-traumatic stress disorder, PTSD. “We have…

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Sponsored • Immunoassay

The quantitative measurement of cardiac troponin I concentration

Pathfast hs-cTnI is a chemi-luminescent enzyme immunoassay (CLEIA) for the quantitative measurement of cardiac troponin I (cTnI) concentration in whole blood or plasma at the point-of-care (POC). Reagents are single use in all-in-one cartridges and up to six tests in parallel can be analysed,’ the manufacturer Mitsubishi reports. ‘Low concentrations of cTnI can be analysed by using high…

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News • Gene editing

Taking CRISPR one step further

Researchers at ETH Zurich have refined the famous CRISPR-Cas method. Now, for the very first time, it is possible to modify dozens, if not hundreds, of genes in a cell simultaneously. The biotechnological method CRISPR-Cas offers a relatively quick and easy way to manipulate single genes in cells, meaning they can be precisely deleted, replaced or modified. Furthermore, in recent years,…

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Article • Surface-enhanced Raman spectroscopy

The lab-on-a-chip SERS platform

Analytically sensitive and specific detection of pharmaceuticals or metabolites in bodily fluids, as well as fast and reliable detection of human pathogens, are major challenges for instrument-based analytics in medical diagnostics. Over the past few years the combination of surface-enhanced Raman spectroscopy (SERS) and microfluidic devices (Lab-on-a-Chip) has emerged as a perfectly suited…

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Article • Acoustic Mist Ionization Mass Spectrometry

A future role for AMI-MS

Acoustic Mist Ionization Mass Spectrometry (AMI-MS) has played a pivotal role in the evolution of high-throughput screening (HTS) and now steps are being taken to advance this field to other potential applications. AstraZeneca has been an important player in this area, having already run more than 10 full collection HTS campaigns against a range of enzyme target types, and the company is now…

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News • XDR Klebsiella pneumoniae

Antibiotic resistance in Europe: Hospitals are part of the problem

New research has found that antibiotic-resistant strains of Klebsiella pneumoniae, an opportunistic pathogen that can cause respiratory and bloodstream infections, are spreading through hospitals in Europe. Certain strains are resistant to the carbapenem antibiotics that represent the last line of defence in treating infections and are therefore regarded as extremely drug resistant (XDR).

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News • Cellular interactions

Repairing aged tissue by messing with the neighbors

Researchers at the University of Helsinki have discovered how regenerative capacity of intestinal epithelium declines when we age. Targeting of an enzyme that inhibits stem cell maintaining signaling rejuvenates the regenerative potential of an aged intestine. This finding may open ways to alleviate age-related gastrointestinal problems, reduce side-effects of cancer treatments, and reduce…

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News • Oncology

Anti-inflammation approach shows promise for preventing cancer metastasis

An anti-inflammatory drug called ketorolac, given before surgery, can promote long-term survival in animal models of cancer metastasis, a team of scientists has found. Furthermore, so-called "pro-resolution" therapies can also trigger the immune system to eliminate metastatic cells. The research also suggests that flanking chemotherapy with anti-inflammatory drugs can unleash anti-tumor…

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News • Fake pills

'Decoy' antibiotics dupe bacteria’s defences

Imperial medical students have helped to devise a new type of ‘decoy’ drug to tackle infections that are resistant to antibiotics. In lab tests on bacterial cultures, the new drug successfully killed a strain of drug-resistant bacteria. It works by delivering two antibiotics, one of which is effectively hidden. When the bacteria fight against the first ‘decoy’ antibiotic, this action…

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News • Making the invisible visible

New method opens unexplored realms for liquid biopsies

Advancing technology is allowing scientists increasingly to search for tiny signs of cancer and other health issues in samples of patients’ blood and urine. These “liquid biopsies” are less invasive than a traditional biopsy, and can provide information about what’s happening throughout the body instead of just at a single site. Now researchers at the University of Michigan Rogel Cancer…

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News • Survival of the fittest

How bacteria can adapt to resist antibiotic treatment

In a joint collaboration, researchers from Denmark and Switzerland have shown that bacteria produce a specific stress molecule, divide more slowly, and thus save energy when they are exposed to antibiotics. The new knowledge is expected to form the basis for development of a new type of antibiotics. All free-living organisms are under constant pressure to survive. Darwin dubbed this…

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Article • Mass spectrometry in patient care

LC-MS/MS: Why qualitatively high-value analysis is cheaper in the end

In the past, we repeatedly focused our attention on developments in the clinical application of mass spectrometry-based methods in patient care. Various aspects became significant. Today, the use of Liquid Chromatography Triple Quad Mass Spectrometry (LC-MS/MS) for therapeutic drug monitoring (TDM) can be considered today’s standard, although classically applied immunoassays continue to be…

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Article • Carbapenemase producing enterobacteriaceae

Detecting drug-resistant CPE quickly is still a challenge

Early detection and confirmation of carbapenemase-producing enterobacteriaceae (CPE) are essential when choosing the appropriate antimicrobial therapy and to implement infection control measures. Here, a leading Spanish microbiologist reviews an arsenal of tools currently available to clinicians. Resistance to beta-lactam antibiotics in enterobacteriaceae (EBc) is due to one or more of these…

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News • Gene editing

DNA “shredder”: a different kind of CRISPR

In the last six years, a tool called CRISPR-Cas9 has transformed genetic research, allowing scientists to snip and edit DNA strands at precise locations like a pair of tiny scissors. But sometimes, it takes more than scissors to do the job. Now, a collaborative international team has unveiled a new CRISPR-based tool that acts more like a shredder, able to wipe out long stretches of DNA in human…

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News • Rare bone cancer

Targeted approach to therapy for chordomas

Chordomas are rare bone tumors for which only few options of treatment exist. Scientists and doctors from the National Center for Tumor Diseases (NCT), the German Cancer Research Center (DKFZ), and Heidelberg University Hospital (UKHD) have discovered a particular genetic trait of chordomas in advanced stages after conducting gene analysis. Their findings, published in the journal Nature…

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News • Cystic Fibrosis & COPD

An experimental treatment for chronic lung disease

Researchers at Queen’s University Belfast have discovered a novel experimental treatment for chronic lung diseases that could improve the lives for people with Cystic Fibrosis (CF) and Chronic Obstructive Pulmonary Disease (COPD).

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News • Antibiotic resistance

Antibacterial chemicals in consumer products backfire

Grocery store aisles are stocked with products that promise to kill bacteria. People snap up those items to protect themselves from the germs that make them sick. However, new research from Washington University in St. Louis finds that a chemical that is supposed to kill bacteria is actually making them stronger and more capable of surviving antibiotic treatment. The study, available online in…

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News • Blood thinners

Experts' plea for anticoagulant dosage guidelines

Rutgers researchers have found a way to reduce bleeding in patients following bariatric surgery. The study, which appeared in the journal Surgery for Obesity and Related Disorders, was conducted by Luigi Brunetti and Leonid Kagan at the Rutgers Ernest Mario School of Pharmacy in collaboration with Ragui Sadek at Advanced Surgical and Bariatrics of New Jersey. More than 30 percent of adults in the…

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News • Choline

Essential nutrient holds promise against Alzheimer’s

In a new study, researchers at the Biodesign Institute explore a safe and simple treatment for one of the most devastating and perplexing afflictions: Alzheimer’s disease (AD). Lead authors Ramon Velazquez and Salvatore Oddo, along with their colleagues in the Arizona State University (ASU)-Banner Neurodegenerative Disease Research Center (NDRC), investigate the effects of choline, an important…

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News • Hypotrichosis

Hair loss? This gene might be to blame

Hypotrichosis simplex leads to progressive hair loss already in childhood. A team of researchers led by human geneticists at the University Hospital of Bonn has now deciphered a new gene that is responsible for this rare form of hair loss. Changes in the LSS gene lead to impairment of an important enzyme that has a crucial function in cholesterol metabolism. The scientists now present their…

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News • Advanced materials

Nanocarriers open up to cancer

Nanosystems that deliver anticancer drugs or imaging materials to tumours are showing significant progress, particularly those that respond to tumour-related stimuli, according to a review published in the journal Science and Technology of Advanced Materials. However, further research is still required to make sure these delivery systems are stable, non-toxic and biodegradable. Nanocarriers…

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News • Nanoparticle therapy

Putting a target on breast cancer

The complex structure of breast tumours makes treatment a medical challenge. A promising, novel selenium-based breast cancer nanoparticle therapy by the Austrian Centre of Industrial Biotechnology (acib) together with other partners in the EU-project Neosetac could change that: It has proved to boost the active agent delivery and assure it's active only in the target tissue while also bringing…

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News • Glioblastoma

Building a better model for brain tumours

A research team led by the University of Alabama at Birmingham is launching a study to find a better model for glioblastoma, a particularly devastating type of brain tumour, to help determine the most appropriate treatment modality. The $3.6 million, five-year U01 grant award is funded by the National Cancer Institute, one of the National Institutes of Health. The UAB team will join four other…

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News • Research

Path to deadly sepsis varies by bacterial infection

Sepsis remains a common and deadly condition that occurs when the body reacts to an infection in the bloodstream. Scientists know little about the early stages of the condition; however, physicians must act fast. Every hour that passes without one or more of the few treatments available increases the risk of death.

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News • Brain cancer

Typical mutation in cancer cells stifles immune response

The exchange of a single amino acid building block in a metabolic enzyme can lead to cancer. In addition, it can impair the immune system. It thus blocks the body’s immune response in the battle against the mutant molecule and also impedes immunotherapy against brain cancer. This finding opens new insights into cancer development and progression and it also suggests that rethinking antitumor…

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News • Live long and prosper

Key molecule of aging discovered

Every cell and every organism ages sooner or later. But why is this so? Scientists at the German Cancer Research Center in Heidelberg have now discovered for the first time a protein that represents a central switching point in the aging process. It controls the life span of an individual - from the fly to the human being. This opens up new possibilities for developing therapies against…

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News • When the phosphate decides...

Defense against viruses or autoimmune disorder?

The first defense line of the body against virus infections is composed of so-called restriction factors. SAMHD1, one of such restriction factors, does not only play a role in the defense against viruses but also in the development of autoimmune disorders and cancer. The question of which effect SAMHD1 exertsin the cell is decided by addition or removal of phosphate groups.

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News • Oncology

Breaking through a tumor's defenses

Babraham Institute researchers have shown that some tumours use not one but two levels of protection against the immune system. Knocking out one level boosted the protective effects of the second and vice versa. The research demonstrates that a two-pronged approach targeting both cell types simultaneously may offer a promising route for the development of new cancer immunotherapies.

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News • Gender issues

Clinical trial enrolment favours men

Clinical trial enrolment favours men, according to a study presented at Heart Failure 2018 and the World Congress on Acute Heart Failure, a European Society of Cardiology congress.1 The study found that fewer women meet eligibility criteria for trials of heart failure medication. Helena Norberg, author of the study, junior lecturer and PhD student, Umeå University, Sweden, said: “One of the…

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Sponsored • Innovation

A real time saver at the highest level of molecular diagnostics – the eazyplex® platform!

This platform enables you to perform high class molecular diagnostics at an unbelievable speed. All assay run times are as short as 15 to 30 minutes, depending on the sample material. The lyophilised reactions are shippable and storable at room temperature and ready to use, with a shelf life of 18 month. Due to the robustness of the polymerase you don’t need any DNA extraction. The…

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Article • Hygiene and microbiology meeting

No all clear for nosocomial infections

Experts at the 70th Annual Meeting of the German Society for Hygiene and Microbiology, held in Bochum, exchanged information on newly discovered resistances. ‘Specifically, resistance against a class of antibiotics that has, so far, always been viewed as a reserve appears to be developing more intensively than previously assumed,’ explained Professor Sören Gatermann, congress president and…

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News • Enigmatic enzyme

How bacteria recover from antibiotics exposure

Beta-lactam antibiotics, including penicillin, are one of the most widely used classes of antibiotics in the world. Though they’ve been in use since the 1940s, scientists still don’t fully understand what happens when this class of drugs encounters bacteria. Now, researchers at the University of Notre Dame have elucidated how an enzyme helps bacteria rebound from damage inflicted by…

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News • Smoking cessation

Common diabetes drug may also help with nicotine withdrawal

In a mouse study, a drug that has helped millions of people around the world manage their diabetes might also help people ready to kick their nicotine habits. In a report published in The Proceedings of the National Academy of Sciences of the United States of America (PNAS), investigators say metformin, an inexpensive drug commonly used to treat patients with type 2 diabetes, appears to block…

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Sponsored • Innovative test

Diagnosis of bacterial vaginosis

Bacterial vaginosis (BV) is a common infectious disorder that affects millions of women worldwide. Women of all ages are at risk for BV and its complications, which include a greater susceptibility to sexually transmitted infections (STIs) such as herpes simplex virus and HIV. If left undetected and untreated, BV can increase a woman's risk of upper genital tract infections such as pelvic…

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News • ACE inhibitor side effects

Lowering blood pressure comes at a price

The recent ACC/AHA Guidelines have increased the number of patients said to have hypertension by up to 40 percent (new 130/80 mmHg). The international recommendation is to treat hypertension with angiotensin converting enzyme inhibitors (ACEIs). These drugs, however, have significant adverse effects: Often a chronic dry cough leads to patients withdrawing from treatment. On rare occasions, ACEIs…

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News • Small molecule, huge effect

Progress toward a new flu treatment, thanks to a small tweak

This year’s unexpectedly aggressive flu season reminds everyone that although the flu vaccine can reduce the number of people who contract the virus, it is still not 100 percent effective. Researchers report that a tweak to a small-molecule drug shows promise for future production of new antiviral therapies that could help patients, regardless of the strain with which they are infected. The…

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News • Right in the stomach

Helicobacter creates immune system blind spot

While gastritis and gastric ulcer disease used to be put down to stress and dietary factors, it was discovered in the 1980s that the actual culprit is infection with a bacterium, H. pylori. This pathogen is now classed as a type I carcinogen by the WHO, as it is the major risk factor for development of gastric carcinoma. Attempts to develop a vaccine against H. pylori have been unsuccessful and…

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News • When proteins go bad

Data detectives uncover new suspect in Alzheimer's

The mass pursuit of a conspicuous suspect in Alzheimer’s disease may have encumbered research success for decades. Now, a new data analysis that has untangled evidence amassed in years of Alzheimer’s studies encourages researchers to refocus their investigations. Heaps of plaque formed from amyloid-beta that accumulate in afflicted brains are what stick out under the microscope in tissue…

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News • Gene editing

CRISPR-based technology DETECTR can detect viral DNA

A powerful genome editing tool can be deployed as an ace DNA detective, able to sniff out DNA snippets that signal viral infections, cancer, or even defective genes. This genetic detective, developed in the laboratory of Howard Hughes Medical Institute (HHMI) Investigator Jennifer Doudna at the University of California, Berkeley, uses the genome-slicing system known as CRISPR. By combining the…

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News • Cognitive improvement

Researchers successfully reverse Alzheimer’s disease in mice

A team of researchers from the Cleveland Clinic Lerner Research Institute have found that gradually depleting an enzyme called BACE1 completely reverses the formation of amyloid plaques in the brains of mice with Alzheimer’s disease, thereby improving the animals’ cognitive function. The study, which will be published in the Journal of Experimental Medicine, raises hopes that drugs targeting…

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News • New approach

Starving liver cancer

Scientists at the University of Delaware and the University of Illinois at Chicago have found a new way to kill liver cancer cells and inhibit tumor growth. First, they silence a key cellular enzyme, and then they add a powerful drug. They describe their methods in a new paper published in Nature Communications. This research could accelerate the development of new treatments for liver cancer,…

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News • Cardiovascular MR

Standard medical tests miss nearly two-thirds of heart attack diagnoses

Standard medical tests miss nearly two-thirds of heart attack diagnoses, reveals research presented at CMR 2018. “Unrecognised MI has a poor short-term prognosis but until now the long-term outlook was unknown,” said lead author Dr Tushar Acharya, a cardiologist at the National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, US. “This study investigated long-term…

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News • Stealthy survivors

Tracing the evolution of E. coli

Bacteria are stealthy organisms. They can multiply in minutes and evolve to survive what we throw at them—including antibiotics. The World Health Organization calls antibiotic resistance “one of the biggest threats to global health, food security, and development today.” Each year, about 2 million people in the United States become infected with antibiotic-resistant bacteria, according to…

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News • Survival rates

Grim outlook for chronic ischaemic heart disease patients

Nearly a quarter of patients with chronic ischaemic cardiovascular disease are dead or hospitalised within six months, reports a European Society of Cardiology (ESC) study published in the European Journal of Preventive Cardiology. “Coronary artery disease is the leading cause of death worldwide yet some patients appear to get lost in the system after their initial visit to a hospital or…

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News • Marine bioluminescence

Deep sea creatures light the way to develop cancer-fighting therapies

A team of scientists at the Keck School of Medicine of USC is looking to some deep sea dwellers to create a better way to develop cancer-fighting therapies. Harnessing the power of the enzymes that give these marine animals the ability to glow, the team created a test that makes it easy for researchers to see whether a therapy is having its intended effect — killing cancer cells. The results of…

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News • Experimental medicine

Loophole in chronic lymphocytic leukemia treatment detected

A team of researchers in Italy and Austria has determined that a drug approved to treat chronic lymphocytic leukemia (CLL) may be less effective in a particular subset of patients. The study, published in the Journal of Experimental Medicine, reveals that ibrutinib has a diminished capacity to delocalize and kill tumor cells expressing an adhesive protein called CD49d, but combining ibrutinib…

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News • Genome editing

CRISPR treatment may prevent hearing loss

Using molecular scissors wrapped in a greasy delivery package, researchers have disrupted a gene variant that leads to deafness in mice. A single treatment involving injection of a genome editing cocktail prevented progressive hearing loss in young animals that would have otherwise gone deaf, Howard Hughes Medical Institute (HHMI) Investigator David Liu and colleagues report in the journal…

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News • Enzyme discovery

Epigenetic agitator of pancreatic cancer cells identified

Genentech researchers have identified an enzyme that shifts pancreatic cancer cells to a more aggressive, drug-resistant state by epigenetically modifying the cells’ chromatin. The study, which will be published in the Journal of Cell Biology, suggests that targeting this enzyme could make pancreatic cancer cells more vulnerable to existing therapies that currently have only limited effect…

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News • Study

Secrets of Ebola uncovered - in the heart of a devastating outbreak

In a comprehensive and complex molecular study of blood samples from Ebola patients in Sierra Leone, published in Cell Host and Microbe, a scientific team led by the University of Wisconsin–Madison has identified signatures of Ebola virus disease that may aid in future treatment efforts. Conducting a sweeping analysis of everything from enzymes to lipids to immune-system-associated molecules,…

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News • ABC4 III

Combined therapies increase adverse side effects

Patients with advanced breast cancer who are treated with a combination of drugs that target specific molecules important for cancer development and also the hormones that are driving it are at increased risk of suffering adverse side effects. In new research presented at the Advanced Breast Cancer Fourth International Consensus Conference (ABC 4), researchers have shown that combining targeted…

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News • The AßC of diabetes

Smart artificial beta cells could lead to new diabetes treatment

Treating type 1 diabetes and some cases of type 2 diabetes has long required painful and frequent insulin injections or a mechanical insulin pump for insulin infusion. But researchers from the University of North Carolina and NC State have now developed what could be a much more patient-friendly option: artificial cells that automatically release insulin into the bloodstream when glucose levels…

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Article • Laboratory adoption

POCT – a critical review and perspective

Not long ago, POCT was a specialist diagnostic discipline used by only few laboratory staff. This has changed considerably over recent years. Initially, the main focus had been on determining electrolytes, blood gases, blood clotting and blood count, but further parameters, such as kidney function, cardiac enzymes, urine tests and testing for autoimmune diseases have now been added. Whilst the…

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News • Antibiotic resistance

A strain of multidrug-resistant Escherichia coli is on the rise

Antibiotic resistant bacteria lead to infections that are difficult to treat, particularly in hospitals. Multidrug-resistant Escherichia coli bacteria which have developed special enzymes that render antibiotics ineffective frequently cause such infections. DZIF scientists from Gießen University examined these bacteria more precisely and discovered a strain of Escherichia coli that has been…

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News • Phosphatidic acid phosphatase

A fat-regulating enzyme could hold the key to obesity and diseases

It had already been known that the enzyme known as phosphatidic acid phosphatase plays a crucial role in regulating the amount of fat in the human body. Controlling it is therefore of interest in the fight against obesity. But scientists at Rutgers University-New Brunswick have now found that getting rid of the enzyme entirely can increase the risk of cancer, inflammation and other ills.

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News • Ocular microbiome

Bugs in your eyes? More helpful than you think

Resident microbes living on the eye are essential for immune responses that protect the eye from infection, new research shows. The study demonstrates the existence of a resident ocular microbiome that trains the developing immune system to fend off pathogens. The research was conducted at the National Eye Institute (NEI), part of the National Institutes of Health. "This is the first…

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News • Skin repair

Badly sunburned? Vitamin D can help

High doses of vitamin D taken one hour after sunburn significantly reduce skin redness, swelling, and inflammation, according to double-blinded, placebo-controlled clinical trial out of Case Western Reserve University School of Medicine and University Hospitals Cleveland Medical Center.

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News • "Bad cholesterol"

Mechanism shown to reverse disease in arteries

A certain immune reaction is the key, not to slowing atherosclerosis like cholesterol-lowering drugs do, but instead to reversing a disease that gradually blocks arteries to cause heart attacks and strokes. This is the finding of a study in mice led by researchers at NYU Langone Medical Center.

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News • Neuro-oncology

Study provides better understanding of how brain tumors ‘feed’

All cancer tumors have one thing in common – they must feed themselves to grow and spread, a difficult feat since they are usually in a tumor microenvironment with limited nutrients and oxygen. A study at The University of Texas MD Anderson Cancer Center has revealed new details about how an enzyme called acetyl-CoA synthetase 2 (ACSS2) allows brain tumors to grow despite their harsh…

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Scientists tissue-engineer part of human stomach

Researchers at Cincinnati Children’s Hospital Medical Center grew functional stomach and intestinal tissues to study diseases and new drugs. They use pluripotent stem cells to generate human stomach tissues in a petri dish that produce acid and digestive enzymes.

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News • Lateral flow immunoassay

Up to 10-fold increase in assay sensitivity

BBI Solutions has launched Morffi, a novel conjugate blocking technology that enhances signal intensity and improves the sensitivity of lateral flow immunoassaysThe technology, developed in-house by BBI Solutions scientists, improves the limit of detection of an assay, providing an increase in sensitivity of up to ten times and a faster time to result.

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Article • Zincmolybdat

The sustainable pathogen killer

Professor Peter Guggenbichler is only too aware of infection prevention and control issues in hospitals. Prior to his retirement in 2013, from the Children’s Hospital at Erlangen University Hospital, in Germany, he led the Infectiology and Preventive Medicine Department, for 25 years. ‘After countless nights on the intensive care ward I realised that the staff does not adhere to infection…

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News • Oncology

Treatment hope would leave liver cancer cells in limbo

Scientists have shown that a mutation in a gene called Arid1b can cause liver cancer. The gene normally protects against cancer by limiting cell growth, but when mutated it allows cells to grow uncontrollably. The researchers have shown that two existing drugs can halt this growth in human cells. This points to a new approach to treating liver cancer.

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Article • Infections

Carbapenem resistant strains

The increasing numbers of bacteria resistant to the newer generations of antibiotics is a public health problem on a global scale. Bacteria have an extraordinary capacity for adaptation, mutating permanently to overcome the action of our increasingly impotent antimicrobial armamentarium. A situation further aggravated by the use of the powerful ‘large spectrum’ antibiotics, creating further…

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News • Neurodegenerative diseases

Brain cell ‘executioner’ identified

Despite their different triggers, the same molecular chain of events appears to be responsible for brain cell death from strokes, injuries and even such neurodegenerative diseases as Alzheimer's. Now, researchers at Johns Hopkins say they have pinpointed the protein at the end of that chain of events, one that delivers the fatal strike by carving up a cell's DNA. The find, they say, potentially…

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News • Oncology

Nanovaccine could enhance cancer immunotherapy

NIBIB researchers have created a nanovaccine that could make a current approach to cancer immunotherapy more effective while also reducing side effects. The nanovaccine helps to efficiently deliver a unique DNA sequence to immune cells – a sequence derived from bacterial DNA and used to trigger an immune reaction. The nanovaccine also protects the DNA from being destroyed inside the body, where…

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News • Infection

Why does MRSA ‘superbug’ kill influenza patients?

Researchers have discovered that secondary infection with the Methicillin-resistant Staphylococcus aureus (MRSA) bacterium (or “superbug”) often kills influenza patients because the flu virus alters the antibacterial response of white blood cells, causing them to damage the patients’ lungs instead of destroying the bacterium. The study suggests that inhibiting this response may help treat…

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Sponsored • Quality assurance

The Calibration Laboratories of the RIB

The calibration laboratories Bonn and Hannover are scientific institutions of the Reference Institute for Bioanalytics (RfB). Using traceable reference measurement procedures of the highest metrological order the laboratories determine laboratory medical target values, so-called reference method values, in human or human-like materials such as serum, plasma or urine. Report: Christina Ritter-Sket

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News • Molecular troublemakers

How proteins prevent communication between bacteria

They may be slimy, but they are a perfect environment for microorganisms: biofilms. Protected against external influences, here bacteria can grow undisturbed, and trigger diseases. Scientists at Kiel University, in cooperation with colleagues at the Hamburg University of Technology (TUHH) in Hamburg-Harburg, are researching how it can be possible to prevent the formation of biofilms from the…

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