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Reduced food intake, known as dietary restriction, leads to a longer lifespan in many animals and can improve health in humans. However, the molecular mechanisms underlying the positive effects of dietary restriction are still unclear. Researchers from the Max Planck Institute for Biology of Ageing have now found one possible explanation in fruit flies: they identified a protein named Sestrin that mediates the beneficial effects of dietary restriction.
WOODS HOLE, Mass. — When you think of swimming, you probably imagine pushing through the water—creating backwards thrust that pushes you forward. New research at the Marine Biological Laboratory (MBL) suggests instead that many marine animals actually pull themselves through the water, a phenomenon dubbed “suction thrust.”
Palo Alto, CA-- Anthraquinones are a class of naturally occurring compounds prized for their medicinal properties, as well as for other applications, including ecologically friendly dyes. Despite wide interest, the mechanism by which plants produce them has remained shrouded in mystery until now.
New work from an international team of scientists including Carnegie's Sue Rhee reveals a gene responsible for anthraquinone synthesis in plants. Their findings could help scientists cultivate a plant-based mechanism for harvesting these useful compounds in bulk quantities.
When you take a time-release drug, you count on it doing what the package says: release the drug slowly into your bloodstream to provide benefits over the specified period of time. When the drug dissolves too slowly or too quickly, the results can range from inconvenient-- a decongestant that lets your sinuses get stuffed up too soon-- to tragic, as many who were prescribed OxyContin discovered.
In a paper published in the journal of Ocular Immunology and Inflammation, physicians from the Bascom Palmer Eye Institute at the University of Miami Miller School of Medicine reported that several patients using germicidal lamps in an attempt to sanitize against the coronavirus, developed painful inflammation of the cornea, a condition called photokeratitis. These consumer-available ultraviolet (UV) emitting devices were being used in an attempt to eliminate coronavirus from homes and offices.
A team led by researchers at Baylor College of Medicine and Rice University has developed artificial intelligence (AI) models that help them better understand the brain computations that underlie thoughts. This is new, because until now there has been no method to measure thoughts. The researchers first developed a new model that can estimate thoughts by evaluating behavior, and then tested their model on a trained artificial brain where they found neural activity associated with those estimates of thoughts.
Below please find a summary and link(s) of new coronavirus-related content published today in Annals of Internal Medicine. The summary below is not intended to substitute for the full article as a source of information. A collection of coronavirus-related content is free to the public at http://go.annals.org/coronavirus.
1. Type O and Rh negative blood groups associated with slightly lower risk for SARS-CoV-2 infection
Mothers leave their mark on their children in many ways - and Australian researchers have discovered a protein called SMCHD1 is involved in this 'imprinting' process.
SMCHD1 switches certain genes off, altering how a cell behaves. The new research has revealed that when an egg cell (or oocyte) is fertilised by a sperm, the egg cell's SMCHD1 lingers within the developing embryo, switching off at least 10 different genes and impacting the embryo's development - which could potentially have a lifelong impact on the offspring.
Dolphins actively slow down their hearts before diving, and can even adjust their heart rate depending on how long they plan to dive for, a new study suggests. Published in Frontiers in Physiology, the findings provide new insights into how marine mammals conserve oxygen and adjust to pressure while diving.
DALLAS, Nov. 24, 2020 -- Even with regular physical activity, older women (ages 50-79) who spend more waking hours in sedentary behaviors, such as sitting or lying down, have an increased risk of heart failure serious enough to require hospitalization, according to new research published today in Circulation: Heart Failure, an American Heart Association journal.
Algorithm was trained, tested on the largest COVID-era dataset (17,002 X-ray images)
Algorithm analyzed X-ray images of lungs about 10 times faster, 1-6% more accurately than individual specialized radiologists
Algorithm is now publicly available for other researchers to continue to train it with new data
System could also potentially flag patients for isolation and testing who are not otherwise under investigation for COVID-19
'It would take seconds to screen a patient and determine if they need to be isolated,' researcher says
Increased consumption of flavanols - a group of molecules which occur naturally in fruit and vegetables - can increase your mental agility, according to new research at the University of Birmingham.
A team in the University's School of Sport, Exercise and Rehabilitation Sciences found that people given a cocoa drink containing high levels of flavanols were able to complete certain cognitive tasks more efficiently than when drinking a non-flavanol enriched-drink.
PITTSBURGH, Nov. 24, 2020 - In today's issue of the Annals of Surgery, epidemiologists from the University of Pittsburgh published two separate analyses that could help guide clinicians and policymakers in counseling bariatric surgery patients to improve their quality of life for many years to come.
Users expressed a stronger preference for Vype ePen 3 versus previous generation Vype ePen 2
Study supports BAT’s commitment to conduct and publish scientific research which helps build A Better Tomorrow by reducing the health impact of its business
Innovation drives significant product improvements to encourage current smokers to switch to scientifically-substantiated, reduced-risk alternatives