337 articles from THURSDAY 3.9.2020

The Lancet: Many countries falling behind on global commitments to tackling premature deaths from chronic diseases, such as diabetes, lung cancer and heart disease

Around the world, the risk of dying prematurely from preventable and largely treatable chronic diseases such as stroke, heart disease, and stomach cancer has declined steadily over the past decade, but death rates from other chronic diseases such as diabetes, lung cancer, colon cancer, and liver cancer are declining too slowly or worsening in many countries.

Tiny biological package gets drug right to the 'heart' of transplant rejection

For patients who receive a heart transplant in the near future, the old adage, 'Good things come in small packages,' may become words to live by. In a recent study, researchers at Johns Hopkins Medicine and the National Cancer Institute (NCI) demonstrated in mice that they can easily deliver a promising anti-rejection drug directly to the area surrounding a grafted heart by packaging it within a...

To make a better sensor, just add noise

Adding noise to enhance a weak signal is a sensing phenomenon common in the animal world but unusual in manmade sensors. Now Penn State researchers have added a small amount of background noise to enhance very weak signals in a light source too dim to sense.

Tryptophan supports guts health on trouts under stress, says a RUDN biologist

A biologist from RUDN University found the most beneficial concentration of tryptophan for rainbow trout. When added to the diet of the fish, this amino acid supports the immune system and reduces the oxidative stress in the intestinal tract caused by the overpopulation of fish farms. The results of the study were published in the Aquaculture magazine.

UCalgary researchers discover how to capture images of cells at work inside our lungs

University of Calgary scientists have discovered how to capture "live" images of immune cells inside the lungs. The group at the Cumming School of Medicine is the first in the world to find a way to record, in real time, how the immune system battles bacteria impacting the alveoli, or air sacs, in the lungs of mice. The discovery has already provided new insights about the immune systems'...

Weight gainers more likely to underestimate their true body size

People with obesity who gain weight have a tendency to perceive their own body size as smaller than it actually is compared to those who maintain a stable weight, according to new research following more than 2,000 people with obesity from the Swedish Obese Subjects (SOS) study over 10 years. The study is being presented at The European and International Congress on Obesity (ECOICO 2020)

When doing good boosts health, well-being

Performing acts of kindness and helping other people can be good for people's health and well-being, according to research published by the American Psychological Association. But not all good-hearted behavior is equally beneficial to the giver. The strength of the link depends on many factors, including the type of kindness, the definition of well-being, and the giver's age, gender and other...

Who should get the COVID-19 vaccine first?

Nineteen global health experts from around the world have proposed a new, three-phase plan for vaccine distribution -- called the Fair Priority Model -- which aims to reduce premature deaths and other irreversible health consequences from COVID-19.

Wool-like material can remember and change shape

SEAS researchers have developed a biocompatible material that can be 3D printed into any shape and pre-programmed with reversible shape memory. The material is made using keratin, a fibrous protein found in hair, nails and shells, extracted from leftover Agora wool used in textile manufacturing. It could be used in anything from self-fitting bras to actuating textiles for medical therapeutics and...

Exclusive: Brazil Amazon fires likely worst in 10 years, August data incomplete, gov't researcher says

The official August data on the number of fires in Brazil's Amazon needs to be corrected and will likely show an increase over last year, meaning that blazes surged to a decade high, a scientist responsible for the figures told Reuters on Wednesday. Brazilian media has reported that fires in Brazil's section of the Amazon rainforest fell by 5% in August, citing data currently on the website of...

Physicists nudge atoms within less than a trillionth of a second

Scientists from Regensburg and Zurich have found a fascinating way to push an atom with controlled forces so quickly that they can choreograph the motion of a single molecule within less than a trillionth of a second. The extremely sharp needle of their unique ultrafast microscope serves as the technical basis: It carefully scans molecules, similar to a record player. Physicists at the University...

CDC tells health officials to expect a coronavirus vaccine by November

Critics fear its development has become politicized by Trump who may push for the release of a vaccine that is not fully testedHealth officials across the US have reportedly been notified that they should expect a coronavirus vaccine available to health workers and high-risk groups by November, amid concerns the accelerated vaccine development process has become politicized.The Centers for Disease...