Search for: "hypoxia" - 41 articles found

Article • Imaging in characterisation and classification of tumour types

Taking a closer look at breast cancer

Breast cancer has no “one size fits all” therapy approach: subtypes differ significantly in malignancy, progression, and treatment response. Therefore, the more is known about the type of carcinoma in a patient, the better the outcome. At the annual scientific EUSOBI meeting in Valencia, Dr Ramona Woitek pointed out the potential of novel imaging techniques and computational image analysis…

Article • Alternative to lumpectomy

Breast cryoablation for surgically inoperative patients

Breast cryoablation is an emerging treatment for early-stage, localized breast cancer that destroys malignant tumours by freezing them. During the past decade, it has been increasingly utilized as an alternative to lumpectomy, but its long-term benefits compared to other breast cancer treatments are still unproven.

News • New imaging method

Delayed fluorescence for effective surgical tumor removal

Researchers propose a new approach to identify cancerous tissue for surgical removal, based on real-time imaging of tissue oxygen concentration.

News • Hypoxia

Stopping lung damage before it turns deadly

Scientists at the La Jolla Institute for Immunology discover new drug target for severe asthma and fibrosis.

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…

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…

Video • Adaptation to oxygen availability

Nobel Prize in Medicine goes to William G. Kaelin Jr, Sir Peter J. Ratcliffe, and Gregg L. Semenza

The Nobel Assembly at Karolinska Institutet has today decided to award the 2019 Nobel Prize in Physiology or Medicine jointly to William G. Kaelin Jr., Sir Peter J. Ratcliffe and Gregg L. Semenza for their discoveries of how cells sense and adapt to oxygen availability.

News • Therapy-resistant cells

Von Hippel-Lindau: How to kill hereditary cancer

Researchers identified how to kill therapy-resistant cells in hypoxic tumors and in cells arising in the von Hippel-Lindau hereditary cancer. In a recent publication in PNAS, the research group identified how to kill therapy-resistant cells in hypoxic tumors and in cells arising in the von Hippel-Lindau (VHL) hereditary cancer.

Video • Autoimmune disease

Detecting rheumatoid arthritis with infrared light

A new way of detecting rheumatoid arthritis using infrared light could offer an objective way of diagnosing the disease and monitoring treatment effectiveness, a University of Birmingham study shows. The rapid, non-invasive technique could help clinicians diagnose the disease earlier, and assess how effectively the selected treatment is controlling the progression of the disease. Rheumatoid…

News • CRISPR

New genetic weapons challenge sickle cell disease

Help for patients with sickle cell disease may soon come from gene editing to fix the mutation that causes the disease and boost the patient's own protective fetal hemoglobin.

Article • Distributed learning

Radiomics on tap in 5-10 years

Keeping data within the hospital by sending the learning modules to each hospital database might prove a game-changer in radiomics, a leading Dutch researcher will show at ECR 2019. Radiomics, a field that aims to extract large amounts of quantitative features from medical images using data-characterisation algorithms, is a major advance for healthcare, according to Philippe Lambin, a radiation…

News • Cancer

Drug-resistant renal cell carcinoma: Nanotherapy offers hope

A research team led by Arun Iyer, Ph.D., assistant professor of pharmaceutical sciences in the Eugene Applebaum College of Pharmacy and Health Sciences at Wayne State University, has developed a nanoplatform technology that works in combination with existing chemotherapeutic drugs that may reverse drug-resistance in renal cell carcinoma.

Article • Combined techniques

Raising the bar higher in CRC imaging

Combining molecular information and high contrast resolution may well improve current performance in colorectal cancer (CRC) cases, according to Vicky Goh, who presented the latest results on PET/MRI during the last European Society of Medical Oncology (ESMO) meeting in Madrid PET/MRI brings the best of both modalities together: high contrast to noise and high spatial resolution combined with…

Article • Abbreviated MRI

Seeking a view through the dense breast

Despite rigorous quality assurance of breast cancer screening programs, ‘both, over- and under-diagnosis of breast cancer is a challenge,’ says leading radiologist Christiane K Kuhl, from the Department of Diagnostic and Interventional Radiology, at the University of Aachen, Germany. ‘Mammography is a good screening test – but has its limitations especially, but not only, in women with…

News • Low Oxygen, High Risk

How tumors adapt to become more aggressive

One of the many reasons tumors are so difficult to treat is that they are able to adapt whenever they are exposed to unfavorable conditions. Hypoxia, or a lack of oxygen, is one example of a phenomenon that should weaken the tumor, but instead, the malignant cells are able to compensate and drive more aggressive disease behavior.

Interview • Evolution

On the cusp of Medicine 4.0

In the world of technology, the term Industry 4.0 is already well known. Univ-Prof. Dr. rer. nat. Bernhard Wolf has reveals a comparable development in medicine. Smart systems and personalisation have enormous potential, the Professor for Medical Electronics at the Technical University of Munich is convinced.

Real-time data for cancer therapy

In the battle against cancer, which kills nearly 8 million people worldwide each year, doctors have in their arsenal many powerful weapons, including various forms of chemotherapy and radiation. What they lack, however, is good reconnaissance — a reliable way to obtain real-time data about how well a particular therapy is working for any given patient.

News • Technology

Diabetes: Smart insulin patch could replace painful injections

Painful insulin injections could become a thing of the past for the millions of Americans who suffer from diabetes, thanks to a new invention from researchers at the University of North Carolina and NC State, who have created a “smart insulin patch” that can detect increases in blood sugar levels and secrete doses of insulin into the bloodstream whenever needed.

Article • Screening

Can, should and must MRI replace mammography?

In breast cancer care each patient receives personalised, highly effective diagnosis and treatment procedures. In breast diagnostics this mainly revolves around new MRI scanning procedures that allow the quantification of biological and physiological processes on a cellular and molecular level.

Article • Screening

AB-MRI could be the ideal screening tool

MRI is increasingly relevant to cancer management, especially to detect breast carcinoma. Professor Christiane K Kuhl from the department of diagnostic and interventional radiology at the University of Aachen, Germany, strongly advocated in favour of MRI in breast cancer screening during a dedicated Satellite Symposium organised by Bracco at ECR 2015. Report: Mélisande Rouger

The future of radiology: Art or science?

Two things that radiologists resist – structured reporting and (computer-assisted) quantification – are the very things that Gabriel Krestin believes are essential to advance diagnosis in the brave new world of omic-medicine that is emerging.

Extracorporeal membrane oxygenation

There is little evidence on respiratory support with extracorporeal systems – enough of an argument for most of those doubting the procedure not to use it, or even make it available.

Traumatic brain injury

Traumatic brain injury (TBI) is the main cause of accidental death in Europe and all highly developed countries, accounting for around 40% of all accidental mortality.

New cancer research targets

‘We aim to develop an understanding of which novel research activities could bring benefits for patients,’ explained Professor Christof von Kalle, Director of the Department of Translational Oncology, NCT (German National Centre for Tumour Diseases) and the German Cancer Research Centre (DKFZ), speaking on translational activities during the New Cancer Targets gathering in Heidelberg this…

In their infancy but new PET tracers have a rich future

Dr Peter Choyke, Chief of the Molecular Imaging Programme at the National Cancer Institute in Bethesda, USA, believes that new tracers will have an evolving role to play and represent an exciting development in the imaging of cancers.

The impact of imaging on personalised cancer medicine

Enormous technical developments over recent decades, along with greater understanding of tumour biology, have made imaging, pathology and laboratory medicine indispensable tools in personalised cancer treatments.

Bayer to Present Data on Oncology Pipeline

Bayer HealthCare announced that the company will present preclinical data that introduce investigational compounds for both therapy and imaging in its early oncology pipeline with unique and novel mechanisms at the American Association for Cancer Research (AACR) 102nd Annual Meeting, April 2-6, 2011, in Orlando, FL.

Biomarkers - the hallmark of personalised medicine

"One size fits all" – the phrase is a fact of life in terms of the drugs available to treat cancer patients today. This solution can bear tragic results. Only 25% of cancer patients currently respond to this ‘one size’ drugs administration. In addition, 100,000 patients die annually, in the USA alone, from the side effects of those drugs. Personalised therapies that are devised to suit…

Secret to Healing chronic wounds might lie in tiny pieces of silent RNA

Scientists have determined that chronic wounds might have trouble healing because of the actions of a tiny piece of a molecular structure in cells known as RNA. The Ohio State University researchers discovered in a new animal study that this RNA segment in wounds with limited blood flow lowers the production of a protein that is needed to encourage skin cells to grow and close over the sore.

Molecular imaging in clinical practice

Over the past decades new imaging technologies have substantially broadened the range of imaging applications in clinical medicine. For years anatomical imaging modalities, such as X-ray and CT, reveal high-resolution information of organs and tissues over extended imaging ranges. Lately, however, the idea of functional imaging e.g. the visualisation of physiology in vivo gains importance.

The new world of biomarkers

While biomarkers are acknowledged as useful tools in the early assessment of patient response to treatment, radiologists are less clear on how they can be applied in clinical practice. The ECR session Biomarkers: new word, new world, new work? explored a number of new applications for biomarkers with senior radiologists discussing their relevance in different areas.

The first MIRO … and the first steps towards guidelines

Clinicians gathering in Brussels for the first-ever conference on Molecular Imaging in Radiation Oncology (MIRO), from 18-20 March, will take the first steps toward setting practice guidelines for using PET scans to target radiotherapy, a task that will culminate with publication of these recommendations in September.

PET-CT vs. whole-body MRI

For many indications, because PET-CT produces a very high accuracy for many tumours, this modality is the gold standard, Prof. Reiser confirmed. It also enables good observation of the course of the disease. After an injection of radioactive tracers we can visualise increased metabolic activity in great detail and with high sensitivity. This is an increasingly important issue not only in primary…

Deadline for hypoxic tumors

Moving personalized medicine from promise to practice. Siemens Healthcare announces the early study findings of a new imaging biomarker for hypoxic tumors. This clinically problematic cells tend to be less responsive to standard treatment regimens. A probe that measures hypoxia could prove quite a useful tool for oncologists.

Coma: Functional MRI to predict first signs of awareness

Terry Shivo was 27 when she collapsed. Paramedics found neither respiration nor a pulse. Almost three months later her eyes had opened, but she was not conscious. She has a sleep/wake circle and sometimes appeared to smile - she was in a vegetative state.

A new imaging tool?

Mammography is the common way to detect breast cancer. But it's not perfect: it struggles to image dense glandular tissue or early-stage tumours. Magnetic resonance imaging (MRI) offers best sensivity but it is expensiv and not always specific enough. Now researchers have come up with another option: a scanner that integrates thermoacoustic and photoacoustic tomography to achieve dual-contrast…

PET-CT for radiation therapy planning:

For individualised radiotherapy, high-precision delineation and characterisation of the tumour is critical. If highest radiation doses are delivered in a targeted fashion, the chance of tumour cell kill increases and tumour control probability is enhanced.

Everything Echocardiography Offers - at 4559 Meters Above Sea Level

It has long been known that remaining at high altitudes leads to an increase in pulmonary arterial pressure caused by hypoxia. Its effects on cardiac function have also been considered well documented. The increase in pressure in the pulmonary circulation causes an enlargement of the right ventricle and thereby causes a displacement of the left ventricle that is accompanied by a relaxation…

Everything Echocardiography Offers - at 4 559 Meters Above Sea Level

It has long been known that hypoxia at high altitudes leads to an increase of pulmonaryarterial pressure. For sensitive persons, one crucial factor for the development of HAPE is the overwhelming rise in pressure in the pulmonary circulation. Using right heart catheterization average pulmonary-arterial pressures of 60 mmHg were encountered in earlier studies of HAPE patients. A pressure increase…

Hyperbaric oxygen treatment

Rationale and effectiveness in the non-healing diabetic foot ulcer patient. By Peter HJ Mueller and Robert A Warriner III

The 1st International Congress of Respiratory Biology (ICRB)

You are invited to be part of a forum to bring respiratory biological research together, to discuss and build. Ours is a growing and vital discipline.