In a study that followed thousands of veterans over a decade, initiating non-medical use of opioid painkillers was associated with a more than 5-fold risk of also beginning to use heroin. (more…)
It’s about terrifying air pollution in Delhi, India Imagine a baby smoking 25 cigarettes a day. The terrifying air pollution in #Delhi is a wake up call for the world #COP22 pic.twitter.com/daFtLVkM4U — UNICEF (@UNICEF) 10. November 2016
Im Zentrum des Vitamins B12 sitzt ein Kobaltatom. Dieses konnten britische Biologen und österreichische Chemiker nun durch ein anderes Metallion ersetzen – mit einem weiteren spektakulären Ergebnis: Das verwendete Rhodium passte besser in die B12-Struktur als das für die biologische Funktion des Vitamins essentielle Kobalt. (more…)
Mit einer optimierten Methode gewinnen Forscher Bilder von Geweben mit ihren feinsten Strukturen
Für viele Forschungszwecke benötigen Wissenschaftler realitätsgetreue und detaillierte Darstellungen von Gewebe- und Zellstrukturen aus dem Körper nach dem Tod von Mensch oder Tier. Klassische Gewebeschnitte werden gefärbt und unter dem Mikroskop untersucht. (more…)
(SALT LAKE CITY) – “Coffee” was the most tweeted food in the continental U.S. between mid-2014 to mid-2015 followed by “beer” then “pizza”. Besides hinting at which foods are popular, tweets may reveal something about our health. Communities that expressed positive sentiments about healthy foods were more likely to be healthier overall. (more…)
AUSTIN, Texas — Some of the bacteria in our guts were passed down over millions of years, since before we were human, suggesting that evolution plays a larger role than previously known in people’s intestinal-microbe makeup, according to a new study in the journal Science. (more…)
As we age, the function and regenerative abilities of skeletal muscles deteriorate, which means it is difficult for the elderly to recover from injury or surgery. New work from Carnegie’s Michelle Rozo, Liangji Li, and Chen-Ming Fan demonstrates that a protein called b1-integrin is crucial for muscle regeneration. Their findings, published by Nature Medicine, provide a promising target for therapeutic intervention to combat muscle aging or disease. (more…)
In these recent sweltering days of summer, air conditioning might seem like your best friend. But those refreshingly cold gusts of air could also be delivering microbes around your house or office – and possibly making you sick. (more…)
