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Reducing proton leak restores function in aging heart cells

By |2020-12-27T21:48:49+00:00December 27th, 2020|

Scientists have revealed a mechanism that causes heart cells to age and identified a drug that can rejuvenate them, according to a study published today in eLife.  The drug is now in clinical trials. The results provide the first direct evidence that aging increases proton leakage in heart cells. The findings could lead to new treatments to [...]

The coronavirus at 1: A year into the pandemic, what scientists know about how it spreads, infects, and sickens

By |2020-12-27T21:44:57+00:00December 27th, 2020|

The coronavirus behind the pandemic presents some vexing dualities. It’s dangerous enough that it dispatches patients to hospitals in droves and has killed more than 1.6 million people, but mild enough that most people shrug it off. It blocks one arm of the immune system from responding as it takes hold, but lures other parts into [...]

Health officials warn of seasonal poisoning risk from certain plants

By |2020-12-25T21:22:52+00:00December 25th, 2020|

A French agency has warned people of the risks of eating berries or leaves from decorative plants. The French Agency for Food, Environmental and Oc Image by dendoktoor from Pixabay cupational Health and Safety (ANSES) seasonal message focused on holly, mistletoe and poinsettia blooms, berries and leaves that can be used to decorate cakes, homes [...]

Indoor Dining and the Spread of Coronavirus

By |2020-12-24T21:03:19+00:00December 24th, 2020|

This week, Gov. Cuomo ordered indoor dining to shut down in New York City and a new study in South Korea suggests that coronavirus spreads much faster and farther inside restaurants than previously thought. Don Milton, MD, professor of environmental and occupational health at the University of Maryland School of Public Health, explains.     CC0 [...]

Bioengineered probiotic could prevent listeria infections

By |2020-12-24T21:03:18+00:00December 24th, 2020|

For pregnant women, the elderly and those with weakened immune systems, listeriosis is a serious foodborne illness often linked to deli meats, fresh produce and dairy products. Even with antibiotic treatment, listeriosis is fatal for about 20 percent of patients, resulting in thousands of deaths annually. Purdue University’s Arun Bhunia, a professor of food science, and [...]

Human transport of thirdhand tobacco smoke: A prominent source of hazardous air pollutants into indoor nonsmoking environments

By |2020-12-24T21:03:17+00:00December 24th, 2020|

Abstract The contamination of indoor nonsmoking environments with thirdhand smoke (THS) is an important, poorly understood public health concern. Real-time THS off-gassing from smokers into a nonsmoking movie theater was observed with online and offline high-resolution mass spectrometry. Prominent emission events of THS tracers (e.g., 2,5-dimethylfuran, 2-methylfuran, and acetonitrile) and other tobacco-related volatile organic compounds (VOCs) [...]

Indoor aerosol water content and phase state in U.S. residences: impacts of relative humidity, aerosol mass and composition, and mechanical system operation

By |2020-12-24T21:03:16+00:00December 24th, 2020|

Abstract Hygroscopic particulate matter (PM) constituents promote uptake of aerosol water (AW), depending on relative humidity (RH), which can constrain qualities such as organic aerosol (OA) phase state and inorganic aerosol (IA) deliquescence and efflorescence. This work provides a first incorporation of AW predictions into residential indoor PM simulations.   Read more… The post Indoor [...]

From molecule to medicine via machine learning

By |2020-12-24T21:03:15+00:00December 24th, 2020|

It typically takes many years of experiments to develop a new medicine. Although vaccines to protect against disease from the novel coronavirus are starting to reach clinics around the world, patients and doctors will still need treatments to manage COVID-19 symptoms for some time. At Pacific Northwest National Laboratory (PNNL), computational biologists, structural biologists, and analytical [...]

Air pollution a cause in girl’s death, coroner rules in landmark case

By |2020-12-24T21:03:14+00:00December 24th, 2020|

A coroner has made legal history by ruling that air pollution was a cause of the death of a nine-year-old girl. Philip Barlow, the inner south London coroner, said Ella Kissi-Debrah’s death in February 2013 was caused by acute respiratory failure, severe asthma and air pollution exposure. He said she was exposed to nitrogen dioxide and particulate [...]

Why cold weather makes it harder for the body to fight respiratory infections

By |2020-12-24T21:03:10+00:00December 24th, 2020|

“FOR THE COMING on of winter resolves the diseases of summer, and the coming on of summer removes those of winter,” wrote the father of medicine, the Greek physician and philosopher Hippocrates, in 400 B.C. This account is considered the earliest recorded study of the seasonal variability of a disease, namely influenza. Why some conditions are periodic, however, was [...]