Related Science News

Opioid use among women trying to conceive may be associated with a lower chance of pregnancy, suggests a National Institutes of Health study. Moreover, opioid use in early pregnancy may be associated with a greater chance of pregnancy loss. The study appears in Epidemiology. “Our findings indicate that women who […]

Nearly three-quarters of older adults with dementia have filled prescriptions for medicines that act on their brain and nervous system, but aren’t designed for dementia, a new study shows. That’s despite the special risks that such drugs carry for older adults – and the lack of evidence that they actually ease […]

A Garvan-developed platform is providing researchers access to genomic data that will help drive discoveries in severe mitochondrial and brain disorders. Medical researchers from across the globe will gain new insight into some of the most devastating inherited conditions, thanks to anonymized genomic and clinical summary data made available by […]

A research team at the Max Planck Institute for Molecular Genetics in Berlin has explored the role of factors in embryonic development that do not alter the sequence of DNA, but only epigenetically modify its “packaging”. In the scientific journal Nature, they describe how regulatory mechanisms contribute to the formation of […]

Four-stranded DNA structures – known as G-quadruplexes – have been shown to play a role in certain types of breast cancer for the first time, providing a potential new target for personalised medicine, say scientists at the University of Cambridge. In 1953, Cambridge researchers Francis Crick and James Watson co-authored […]

Genes that are thought to play a role in how the SARS-CoV-2 virus infects our cells have been found to be active in embryos as early as during the second week of pregnancy, say scientists at the University of Cambridge and the California Institute of Technology (Caltech). The researchers say […]

Since the late 1990s, immunotherapy has been the frontline treatment against lymphomas where synthetic antibodies are used to stop the proliferation of cancerous white blood cells. However, in the more than 20 years since their use began, the molecular mechanisms that underlie this therapy are still little understood. For the […]

Researchers studying the mystery of why some weightlifters’ muscles grow much more quickly than others’ have found new answers through a novel experiment in which subjects worked out one leg and immobilized the other. In just two weeks, the immobilized leg, on average, lost the same amount of muscle mass […]

The enzyme serine palmitoyl-transferase can be used as a metabolically responsive switch that decreases tumor growth, according to a new study by a team of San Diego scientists, who published their findings in the journal Nature. By restricting the dietary amino acids serine and glycine, or pharmacologically targeting the serine […]

The multiplication of genes located in extrachromosomal DNA that have the potential to cause cancer drives poor patient outcomes across many cancer types, according to a Nature Genetics study published by a team of researchers including Professors Vineet Bafna and Dr. Paul Mischel of the University of California San Diego  […]

Should rapamycin be prescribed ubiquitously as an anti-aging supplement? That is the question the authors of this commentary ask after a short overview of what is known of the beneficial effects of rapamycin on mechanisms relevant to aging. Research into inhibition of the two mTOR complexes, mTORC1 and mTORC2, via […]

New insight into a gene that controls energy production in cancer stem cells could help in the search for a more effective treatment for glioblastoma. A McGill-led study published in Nature Communications reveals that suppressing the OSMR gene can improve the effectiveness of radiation therapy. This approach, led by the laboratory of […]

New research reveals a subtype of autism associated with lipid abnormalities. Researchers at Harvard Medical School, Massachusetts Institute of Technology and Northwestern University have identified a subtype of autism arising from a cluster of genes that regulate cholesterol metabolism and brain development. The researchers say their findings, published in Nature […]

Children suffering from restless sleep disorder would report trouble focusing during the day, and emotional and behavioral problems at home and school. A UW Medicine researcher, along with colleagues from Italy, Spain and Chile, have defined a new pediatric sleep disorder, which once diagnosed and treated, may help children and […]

Telomeres are repeated DNA sequences at the ends of chromosomes. With each cell division a little telomere length is lost, and this is an important part of the countdown mechanism that limits replication of somatic cells. Somatic cells with short telomeres become senescent or self-destruct. Stem cells, on the other […]

A study from Emory Vaccine Center provides insights into why the boost in immunity from seasonal flu vaccination lasts for months but not years, unlike some childhood vaccinations. The home base for immune cells that produce antibodies is the bone marrow. Seasonal flu vaccination does increase the number of antibody-producing […]

Experts estimate up to one third of people attending specialist memory clinics could have a condition that is commonly mistaken for early dementia. In a paper published in the journal, Brain, UK academics and clinicians have collaborated to develop a diagnostic definition of the widely recognized but poorly understood condition, Functional Cognitive Disorder (FCD).  Dr Harriet Ball from the University of Bristol, first author of the […]

The disease multiple sclerosis (MS) attacks the central nervous system and, with time, can give rise to muscle tremors and loss of balance. Researchers at Karolinska Institutet have now identified a gene, Gsta4, that protects a certain kind of cell in the brain from being destroyed. It is hoped that […]

New research supported by the National Institutes of Health delineates how two relatively common variations in a gene called KIF3A are responsible for an impaired skin barrier that allows increased water loss from the skin, promoting the development of atopic dermatitis, commonly known as eczema. This finding could lead to genetic tests […]

Today's open access research is a good companion piece to a recent paper that investigates biochemical differences between long-lived and short-lived bats. Bats are renowned for, firstly, an exceptional resistance to classes of virus that are fatal to other mammals, allowing bat populations to act as reservoirs for potentially dangerous […]

In a proof-of-principle study, researchers at the Garvan Institute of Medical Research revealed a potential therapeutic approach for targeting estrogen receptor-positive (ER+) breast cancers resistant to current therapies. By combining current gold-standard treatments with a drug that restores the activity of p53, a cancer suppressor protein, the researchers found they […]

Researchers from the Garvan Institute of Medical Research have uncovered four new subtypes of cells within triple negative breast cancer, which contain promising new therapeutic targets for the aggressive disease. Using cellular genomics, the team revealed one of the new cell types produces molecules that suppress immune cells, which may […]

Researchers at the New Jersey Institute of Technology and the Children's Hospital of Philadelphia have developed an algorithm through machine learning that helps predict sites of DNA methylation — a process that can change the activity of DNA without changing its overall structure. The algorithm can identify disease-causing mechanisms that would otherwise […]

Progress against DIPG, a fatal childhood brain tumor, is usually a game of inches. Studies that hint at even small gains are cause for celebration. That’s why researchers at the University of Michigan and their collaborators are excited about discoveries that point toward a new potential treatment approach — one […]

The results of a recent clinical trial indicate that, for older adults with advanced cancer, initiating aspirin therapy may increase their risk of disease progression and early death. Notably, the vast majority of the study participants did not previously take aspirin before age 70. The study, conducted by Harvard Medical […]

Loss of a specific enzyme increases fat metabolism and exercise endurance in mice. Sugars and fats are the primary fuels that power every cell, tissue, and organ. For most cells, sugar is the energy source of choice, but when nutrients are scarce, such as during starvation or extreme exertion, cells […]

Using state-of-the-art 3D microscopy and mathematics, Dr. Hermes Gadêlha from the University of Bristol, Dr. Gabriel Corkidi, and Dr. Alberto Darszon from the Universidad Nacional Autonoma de Mexico have reconstructed the movement of the sperm tail in 3D with high-precision. Using a high-speed camera capable of recording over 8,000 frames […]

A new insight into cell signals that control cancer growth and migration could help in the search for effective anti-cancer drugs. A McGill-led study reveals key biochemical processes that advance our understanding of colorectal cancer, the third most common cancer among Canadians. Using the CMCF beamline at the Canadian Light Source (CLS) […]

Some people get really sick from COVID-19, and others don’t. Nobody knows why. Now, a study by investigators at the Stanford University School of Medicine and other institutions has turned up immunological deviations and lapses that appear to spell the difference between severe and mild cases of COVID-19. That difference may stem […]

One of the hallmarks of severe COVID-19 is shortness of breath and significantly reduced levels of oxygen in the blood, called hypoxemia. Upon hospitalization, these patients are administered oxygen in an attempt to bring their levels back up to normal. However, a new study hints that this universal therapy may […]