Culture

A technology that is widely used by commercial genetic testing companies is "extremely unreliable" in detecting very rare variants, meaning results suggesting individuals carry rare disease-causing genetic variants are usually wrong, according to new research published in the BMJ.

Recreational drinking, smoking, and drug use is linked to premature heart disease in young people, particularly younger women, finds research published online in the journal Heart.

Those who regularly use 4 or more substances are 9 times as likely to be affected, the findings indicate.

The numbers of new cases of heart disease (atherosclerotic cardiovascular disease) have been increasing in young adults, but the potential role of recreational substance use isn't entirely clear.

Ageism, sexism, and Western ideals of the nuclear family have excluded grandmothers from national and international policy initiatives to save newborn lives in the Global South, suggests an analysis published in the online journal BMJ Global Health.

This is despite published research indicating that they are a valuable and influential resource for children's health and survival in many cultures, the study author points out.

Around three out of 4 newborn deaths in the Global South occur in the first week of life--40% of them on the first day, and most of them at home.

A new first-of-its-kind study has questioned whether pub operators can effectively and consistently prevent COVID-19 transmission - after researchers observed risks arising in licensed premises last summer.

Led by the University of Stirling, the research was conducted in May to August last year in a wide range of licensed premises which re-opened after a nationwide lockdown, and were operating under detailed guidance from government intended to reduce transmission risks.

NASA, in collaboration with other leading space agencies, aims to send its first human missions to Mars in the early 2030s, while companies like SpaceX may do so even earlier. Astronauts on Mars will need oxygen, water, food, and other consumables. These will need to be sourced from Mars, because importing them from Earth would be impractical in the long term.

Hydrogen peroxide is used as a disinfectant, after dilution in water, to treat wounds. It is widely used across the industry as an eco-friendly oxidizing agent for impurity removal from semiconductors, waste treatment, etc. Currently, it is mainly produced by the sequential hydrogenation and oxidation of anthraquinone (AQ). However, this process is not only energy intensive and requires large-scale facilities, but AQ is also toxic.

INDIANAPOLIS -- Researchers from Regenstrief Institute and Indiana University School of Medicine have developed and validated a short questionnaire to help patients report symptoms and assist healthcare providers in assessing the severity of symptoms, and in monitoring and adjusting treatment accordingly.

Feathers are a sleek, intricate evolutionary innovation that makes flight possible for birds, but in addition to their stiff, aerodynamic feathers used for flight, birds also keep a layer of soft, fluffy down feathers between their bodies and their outermost feathers to regulate body temperature.

PITTSBURGH, Feb. 15, 2021 - By capitalizing on a convergence of chemical, biological and artificial intelligence advances, University of Pittsburgh School of Medicine scientists have developed an unusually fast and efficient method for discovering tiny antibody fragments with big potential for development into therapeutics against deadly diseases.

Experts have devised a novel approach to selecting photos for police lineups that helps witnesses identify culprits more reliably.

In a paper published by the Proceedings of the National Academy of Sciences, researchers - from the University of California San Diego and Duke University in the United States and the University of Birmingham in the U.K. - show for the first time that selecting fillers who match a basic description of the suspect but whose faces are less similar, rather than more, leads to better outcomes than traditional approaches in the field.

Scientists say they have discovered a potential new target for immunotherapy of malignant brain tumors, which so far have resisted the ground-breaking cancer treatment based on harnessing the body's immune system. The discovery, reported in the journal CELL, emerged from laboratory experiments and has no immediate implications for treating patients.

Employing cardiovascular disease prevention strategies in mid-life may delay or stop the brain alterations that can lead to dementia later in life, according to a study in the Journal of the American College of Cardiology.

Engineers at the University of California San Diego have developed a soft, stretchy skin patch that can be worn on the neck to continuously track blood pressure and heart rate while measuring the wearer's levels of glucose as well as lactate, alcohol or caffeine. It is the first wearable device that monitors cardiovascular signals and multiple biochemical levels in the human body at the same time.

In a new study out of University of California San Diego School of Medicine, researchers found a drug used for heart failure improves symptoms associated with postural orthostatic tachycardia syndrome, otherwise known as POTS. This complex, debilitating disorder affects the body's autonomic nervous system, causing a high heart rate, usually when standing.

[Images and video available: see notes to editors]

Wasps provide crucial support to their extended families by babysitting at neighbouring nests, according to new research by a team of biologists from the universities of Bristol, Exeter and UCL published today [15 February] in Nature Ecology and Evolution.

The findings suggest that animals should often seek to help more distant relatives if their closest kin are less in need.