Category Biology/Biotechnology

Increasing Red Meat intake linked with Heightened risk of early Death

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Association of changes in red meat consumption with total and cause specific mortality among US women and men: two prospective cohort studiesBMJ, 2019; l2110 DOI: 10.1136/bmj.l2110

Swapping red meat for healthier animal or plant-based alternatives such as eggs and fish, whole grains and vegetables may lower risk. Processed red meat in particular is associated with a heightened risk of death, suggests a large US study published in The BMJ today.

High intake of red meat, such as beef, pork and lamb, has been previously linked with a higher risk of type 2 diabetes, cardiovascular disease, certain types of cancers, and premature death. But little is known about how changes in red meat intake may influence risk of death.

So to explore this further, a team of researchers based in t...

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Light-Powered Nano-organisms consume CO2, create Eco-friendly Plastics and Fuels

Microbes
A gram of biodegradable plastic created by nanobio-hybrid microbes developed by CU Boulder engineers. Photo: Nagpal Lab / University of Colorado Boulder 

University of Colorado Boulder researchers have developed nanobio-hybrid organisms capable of using airborne carbon dioxide and nitrogen to produce a variety of plastics and fuels, a promising first step toward low-cost carbon sequestration and eco-friendly manufacturing for chemicals.

By using light-activated quantum dots to fire particular enzymes within microbial cells, the researchers were able to create “living factories” that eat harmful CO2 and convert it into useful products such as biodegradable plastic, gasoline, ammonia and biodiesel.

“The innovation is a testament to the power of biochemical processes,” said Prasha...

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Is there a Limit to Human Endurance? Science says yes

New study reveals how hard humans can push and still keep it up without breaking down. Photo By: Cpl. Shaltiel Dominguez

Some say the breaking point is all in your head, but new research suggests it’s also in your gut. From the Ironman triathlon to the Tour de France, some competitions test the limits of even the toughest endurance athletes. Now, a new study of energy expenditure during some of the world’s longest, most grueling sporting events suggests that no matter what the activity, everyone hits the same metabolic limit – a maximum possible level of exertion that humans can sustain in the long term.

When it comes to physical activities lasting days, weeks and months, the researchers found, humans can only burn calories at 2.5 times their resting metabolic rate.

Not even ...

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Alzheimer’s disease Protein links Plaques to Cell Death in mice

MRI scans of CAPON-overexpressing mouse brains scanned 7 days and 3 months after CAPON cDNA introduction to AD mice.
CREDIT: RIKEN

A new protein involved in Alzheimer’s disease (AD) has been identified by researchers at the RIKEN Center for Brain Science (CBS). CAPON may facilitate the connection between the two most well-known AD culprits, amyloid plaques and tau pathology, whose interactions cause brain cell death and symptoms of dementia. This latest finding from the Takaomi Saido group at RIKEN CBS uses a novel mouse model of AD. The study was published in Nature Communications on June 3.

Alzheimer’s disease is a complex and devastating condition characterized by plaques of amyloid-β and neurofibrillary tangles, also known as tau pathology, in the brain...

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