Search for: "biophysics" - 75 articles found

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Article • Future treaments discussed at senology congress

How will we treat breast cancer in 2034?

The year: 2034. Breast cancer patients benefit from perfectly personalised diagnostics and therapies. The tedium of follow-up treatments is a thing of the past, thanks to AI, augmented reality and robotics. Just a tale from the realm of science fiction, or could this soon be clinical reality? At the annual meeting of the German Senologic Society, Prof Dr Marc Thill from the Agaplesion Markus…

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Article • Benefits of seated placement

Patient positioning during cancer radiotherapy: Upright is alright

The concept of delivering radiation therapy to cancer patients seated in an upright position is undergoing a major resurgence. Evidence is already highlighting that patients feel more comfortable seated upright and enjoy better communication with radiotherapists during their care. In addition, there are indications of less internal organ movement, enabling more accurate treatment delivery.…

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Article • Tissue-engineered glioblastoma model

3D brain tumour in a dish to personalize cancer treatment

It is the size of a common pencil eraser, but it could have a huge impact on the therapy of glioblastoma: Scientists in Virginia have developed a novel 3D tissue-engineered model of the brain tumour microenvironment, which can be used to assess how the glioma cell invades healthy tissue, proliferates, and reacts to chemotherapy drugs.

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News • Organoid research

Structure formation in mini-organs

Many of the organ systems found in animals exhibit highly complex structures, which are essential for their various functions. How such structures develop during embryonic development is a central question in biology. Physicists led by Erwin Frey (Professor of Statistical and Biological Physics at LMU Munich) and Andreas Bausch (Professor of Cellular Biophysics at the Technical University of…

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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 • Building a coronavirus factory

How SARS-CoV-2 reprograms human cells to their own benefit

Coronavirus researchers under Prof. Rolf Hilgenfeld of the University of Lübeck and Dr. Albrecht von Brunn of the Ludwig-Maximilians University of Munich discovered how SARS viruses enhance the production of viral proteins in infected cells, so that many new copies of the virus can be generated. Other coronaviruses apart from SARS-CoV and SARS-CoV-2 do not use this mechanism, thereby providing a…

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News • Lipid research

Solving the sub-zero challenge of Covid-19 vaccines

New research by University of Texas at Dallas scientists could help solve a major challenge in the deployment of certain Covid-19 vaccines worldwide — the need for the vaccines to be kept at below-freezing temperatures during transport and storage. In a study published online in Nature Communications, the researchers demonstrate a new, inexpensive technique that generates crystalline…

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News • HPV testing advances

Cervical cancer screening: Emerging tech to replace Pap smears

Emerging technologies can screen for cervical cancer better than Pap smears and, if widely used, could save lives both in developing nations and parts of countries, like the United States, where access to health care may be limited. In Biophysics Reviews, by AIP Publishing, scientists at Massachusetts General Hospital write advances in nanotechnology and computer learning are among the…

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News • Rescuing brain cell activity

Alzheimer's: Promising avenue to restore cognitive function

A team of neuroscientists has identified a potential means to address the loss of cognitive function due to Alzheimer’s disease by targeting protein synthesis in mice. Their findings, reported in the journal Science Signaling, reveal that synthetic pharmaceuticals could rescue the activity of brain cells needed for memory formation.

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News • Virion recreated

First computational model of entire SARS-CoV-2 virus

Researchers at the University of Chicago have created the first usable computational model of the entire virus responsible for Covid-19—and they are making this model widely available to help advance research during the pandemic. “If you can understand how a virus works, that’s the first step towards stopping it,” said Prof. Gregory Voth, whose team created the model published in…

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News • Brain rejuvenation

Drug reverses age-related mental decline within days

Just a few doses of an experimental drug can reverse age-related declines in memory and mental flexibility in mice, according to a new study by UC San Francisco scientists. The drug, called ISRIB, has already been shown in laboratory studies to restore memory function months after traumatic brain injury (TBI), reverse cognitive impairments in Down Syndrome, prevent noise-related hearing loss,…

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News • Downsized imaging

Signals from a miniature MRI unit

Magnetic resonance imaging (MRI) is indispensable in medical diagnostics. However, MRI units are large and expensive to acquire and operate. With smaller and cost-efficient systems, MRI would be more flexible and more people could benefit from the technique. Such miniature MRI units generate a much weaker signal that is difficult to analyze, though. Researchers at the Göttingen Max Planck…

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Sponsored • Addressing a broad range of research applications

Mass spectrometry advances

Since the Covid-19 epidemic took hold, the public has expected ‘unprecedented progress from the scientific community,’ observed Dan Shine, senior vice president and president of the analytical instruments division of Thermo Fisher Scientific Inc. ‘A deeper analysis of proteins is critical to understanding disease, including novel viruses. New instruments, software and workflows can power…

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News • "Enhance that"

New algorithm sharpens focus of cryo-electron microscopes

Scientists have developed a tool that improves the resolution and accuracy of powerful microscopes that are used to reveal insights into biology and medicine. In a study published in Nature Methods, a multi-institutional team led by Tom Terwilliger from the New Mexico Consortium and including researchers from Lawrence Berkeley National Laboratory (Berkeley Lab) demonstrates how a new computer…

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News • Reduced complications, death

COVID-19: The benefits of vitamin D

Adequate levels of vitamin D reduces complications and deaths among COVID-19 patients, reveals new research performed at the Boston University School of Medicine. Hospitalized COVID-19 patients who were vitamin D sufficient, with a blood level of 25-hydroxyvitamin D of at least 30 ng/mL (a measure of vitamin D status), had a significant decreased risk for adverse clinical outcomes including…

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News • A look at oligodendrocytes

Parkinson’s disease may start in the gut

Researchers at Karolinska Institutet and the University of North Carolina have mapped out the cell types behind various brain disorders. The findings are published in Nature Genetics and offer a roadmap for the development of new therapies to target neurological and psychiatric disorders.

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News • Cancer radiotherapy monitoring

Novel hydrogel turns pink to indicate radiation dose sweet spot

More than half of all cancer patients undergo radiation therapy and the dose is critical. Too much and the surrounding tissue gets damaged, too little and the cancer cells survive. Subhadeep Dutta and Karthik Pushpavanam, graduate students working in the lab of Kaushal Rege, Professor at Arizona State University in Tempe, and collaborators at Banner-M.D. Anderson in Gilbert, Arizona, developed a…

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News • "Immune escape"

Cancer camouflage: how our immune system is duped

T cells play a huge role in our immune system's fight against modified cells in the body that can develop into cancer. Phagocytes and B cells identify changes in these cells and activate the T cells, which then start a full-blown program of destruction. This functions well in many cases – unless the cancer cells mutate and develop a kind of camouflage that let them escape the immune system…

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News • Bacterial battle

Designing drugs that cure Clostridium difficile

A newly published paper details a research breakthrough that provides a promising starting point for scientists to create drugs that can cure Clostridium difficile (C. diff) — a virulent health care-associated infection that causes severe diarrhea, nausea, internal bleeding, and potentially death. The bacteria affects roughly half-a-million Americans and causes nearly 15,000 deaths in the U.S.…

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News • Molecular diversity

New insights into abnormal proteins in Parkinson’s disease and MSA

Parkinson’s and multisystem atrophy (MSA) – both of them neurodegenerative diseases – are associated with the accumulation of alpha-synuclein proteins in the brain. Researchers at the German Center for Neurodegenerative Diseases (DZNE) and the Max Planck Institute for Biophysical Chemistry (MPI-BPC) have investigated the molecular makeup of these protein deposits finding structural…

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Sponsored • GERICARE research programme

Evaluating the benefits of point-of-care ultrasound for geriatric medicine

Dr Nicolas Azulay is a general medicine doctor specialising in scheduled and emergency ultrasound examinations at the University Hospitals of Nice, where he works at the Pasteur II and Cimiez hospitals. As part of the clinical research programme GERICARE, he recently studied the impact of point-of-care ultrasound (POCUS) assessment of patients admitted to the short-stay geriatric unit at Cimiez,…

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News • In the skin

New 'pain organ' discovered

Researchers at Karolinska Institutet in Sweden have discovered a new sensory receptor organ that is able to detect painful mechanical damage, such as pricks and impacts. The discovery is being published in the scientific journal Science. Pain causes suffering and results in substantial costs for society. Almost one person in every five experiences constant pain and there is a considerable need to…

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Article • Data handling

Blockchain: “Hype will fade but the technology will remain”

A new dimension in data handling is not only emerging, but is already a reality in our lives. However, political discourse about this often lags behind real events. We spoke with two experts who have an overview of clouds, decentralised data flows and the evaluation of personal data with IT help in various areas. Engineer Professor Alexandra Dmitrienko is a Secure Software Systems expert at the…

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News • Neural development

Why our brains fold the way they do

Everyone knows what our brains look like – but why is it folded up like that? Looking at other species reveals much less folding or even none at all. Scientists in Dresden, Germany, have now taken a closer look at the ridges and grooves of human brains. They discovered what causes our brains to fold – and what happens when the folding process goes wrong.

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Article • An era of turbulence and innovation

The birth and rebirth of imaging

The New Horizons Lecture at the RSNA annual meeting is a keynote address that looks to the future, and the inventor of a major innovation in magnetic resonance imaging (MRI) technology, Daniel K Sodickson MD PhD, did just that. His lecture entitled ‘A New Light: The Birth and Rebirth of Imaging’ looked back at how MRI has evolved and forward at what it will become.

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News • Mitosis' structure

Understanding the inside of cancer cells

Cell division is an intricately choreographed ballet of proteins and molecules that divide the cell. During mitosis, microtubule-organizing centers (MTOCs) assemble the spindle fibers that separate the copying chromosomes of DNA. While scientists are familiar with MTOCs’ existence and the role they play in cell division, their actual physical structure remains poorly understood. Shruthi…

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Article • AEC syndrome

Cause of severe genetic disease identified

Mutations in the p63 protein lead to a number of disorders, but none is as severe as the AEC syndrome. Scientists at Goethe University Frankfurt in collaboration with a research group from the University of Naples Federico II have now discovered that this syndrome resembles diseases such as Alzheimer’s, Parkinson’s or ALS more closely than it does other p63-based syndromes. Their results,…

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News • Research

Experimental drug interferes with Alzheimer’s mechanisms

The chemical compound “anle138b” eases cognitive deficits and normalizes gene expression in a mouse model of Alzheimer’s disease. Furthermore, the drug seems to close harmful openings in the membrane of nerve cells. An international collaboration reports these findings in the journal “EMBO Molecular Medicine”. The scientists suggest that anle138b should be validated in clinical trials…

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News • Study

Relaxing proteins may prevent dysfunction and disease

For many years, we thought that all proteins must fold into complicated shapes to fulfill their functions, looking like thousands of sets of custom-tailored locks and keys. But over the past two decades, scientists have begun to realize other proteins—including those involved in many essential cellular functions—remain fully or partially unfolded for parts of their lives. Out of this…

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Video • Cell signals

Wound healing: more complex than you think

In a sharp and pointy world, wound healing is a critical and marvelous process. Despite a tremendous amount of scientific study, many outstanding mysteries still surround the way in which cells in living tissue respond to and repair physical damage. One prominent mystery is exactly how wound-healing is triggered: A better understanding of this process is essential for developing new and improved…

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Article • Light microscopy

An image is worth a thousand words

Light microscopy today offers a wealth of techniques that provide fascinating insights into life on subcellular level. “In light microscopy these days there are so many new techniques that each of us can only handle a subset of them,” says Christian Tischer, scientific officer in der Advanced Light Microscopy Facility of the European Molecular Biology Laboratory (EMBL) in Heidelberg, Germany,…

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Article • Contrast enhancement

Sonic boom with bubbles

Illuminating blood vessels, opening the blood-brain barrier and delivering drugs. What will be the next big thing that tiny microbubbles can do?

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News • Microscopy

Watching molecular machines at work

When one cell divides into two - that is how all forms of life are propagated - the newly born daughter cells have to be equipped with everything they will need in their tiny lives. Most important of all is that they inherit a complete copy of the genetic information from their mother cell. If this is not the case because a wrong number of chromosomes – on which the genetic information is…

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News • Biophysic

What happens when red blood cells "wriggle"

For the first time, and using physical methods, scientists have demonstrated how red blood cells move. They recognized that fast molecules in the vicinity make the cell membrane in the blood cells wriggle – but that the cells themselves also become active when they have enough reaction time.

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Article • Scanner

The world’s first digital clinical path lab

The field is so new that the annual Digital Pathology Congress (3-4 December in London) was held for only the second time. Yet, Philips Healthcare could announce a world-first – in partnership with the Netherlands-based LabPON, the company has created the first clinical pathology laboratory to be completely converted to digital diagnosis.

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News • Research

Drug engineered from bananas fights deadly viruses

A banana a day may not keep the doctor away, but a substance originally found in bananas and carefully edited by scientists could someday fight off a wide range of viruses, new research suggests. And the process used to create the virus-fighting form may help scientists develop even more drugs, by harnessing the “sugar code” that our cells use to communicate. That code gets hijacked by…

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News • Toolkit

Microchip helps to visualize breast cancer proteins

A photograph may reveal how something looks, but direct observation can divulge how the objects behave. The difference can mean life or death, especially when it comes to fighting human disease. To help researchers examine exactly how human diseases work at the molecular level, Virginia Tech Carilion Research Institute scientist Deborah Kelly has developed a new set of tools to peer into the…

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News • Fighting AIDS

Targeting HIV in semen to shut down AIDS

There may be two new ways to fight AIDS -- using a heat shock protein or a small molecule – to attack fibrils in semen associated with the human immunodeficiency virus (HIV) during the initial phases of infection, according to new research from the Perelman School of Medicine at the University of Pennsylvania.

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Giant virus revealed in 3-D using X-ray laser

For the first time, researchers have produced a 3-D image revealing part of the inner structure of an intact, infectious virus, using a unique X-ray laser at the Department of Energy’s SLAC National Accelerator Laboratory. The virus, called Mimivirus, is in a curious class of “giant viruses” discovered just over a decade ago.

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CIED patients can have MRI examinations

A new generation of cardiovascular implantable electronic devices (CIEDs) includes the Implantable Cardioverter Defibrillator (ICD), Cardiac Resynchronisation Therapy Defibrillator (CRT-Ds) and Cardiac Resynchronisation Therapy Pacemakers (CRT-Ps). Professor W R Bauer at University Hospital Würzburg has been significantly involved in their development, EH Editor Ralf Mateblowski to ask him about…

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Breast imaging in 2025

A leading radiologist is forecasting a ‘paradigm shift’ in breast imaging. Dr Peter Brader, from Department of Radiology, Division for Molecular and Gender Imaging, Medical University Vienna, envisages that diagnosis and treatment will move from a ‘one size fits all’ approach to one of personalised molecular medicine by 2025. He also foresees greater use of theranostics with combinations…

Genes that controll ES-cell fate identified

Scientists have identified about two dozen genes that control embryonic stem cell fate. The genes may either prod or restrain stem cells from drifting into a kind of limbo, they suspect. The limbo lies between the embryonic stage and fully differentiated, or specialized, cells, such as bone, muscle or fat.

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Top-Class scientific lectures and lively discussions in Heidelberg

Four times a year, the “Leica Scientific Forum — Advances in Life Science” offers top-class lectures, with eminently respectable speakers in the field of medicine like Noble prize winner Professor Dr. Erwin Neher from the Max-Planck-Institute for Biophysical Chemistry, Göttingen, who was guest speaker at the last Forum this year on December 5. The Forum – which takes place in Heidelberg…

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Molecular MRI

By Dr Fabian Kiessling, Head of the Division of Molecular Imaging, Department of Biophysics and Medical Radiation Physics, German Cancer Research Centre (DKFZ)

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