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Health News - Biology/Biochemistry

Brain activity has role in human aging and longevity
After studying human tissue, mice, and worms, scientists link excessive brain activity to reduced life span and find that its suppression can extend life. (Medical News Today)

Gut microbiota may 'prevent and cure' rotavirus
Scientists have found gut bacteria in mice that could cure rotavirus infections, which cause the death of hundreds of thousands of children each year. (Medical News Today)

Parkinson's: New treatment approach shows promise in brain cells
A new study suggests an innovative strategy for tackling an enzyme that is typically affected in Parkinson's disease. The findings show promise in neurons. (Medical News Today)

Scientists liken mitochondria to Tesla battery packs
Using high resolution microscopy, scientists show that mitochondria comprise many bioelectric units rather than a single one, as they previously thought. (Medical News Today)

Could a unique new fungus offer an opioid alternative?
A new discovery in the estuarine waters of Tasmania may lead to the development of a safe and effective alternative to opioids, scientists reveal. (Medical News Today)

Drinks, not food, with added sugar promote weight gain
Research finds that adding sucrose to drinks increases calorie intake and weight gain in mice, but adding the same amount in solid form to food does not. (Medical News Today)

Gut bacteria may counter the harmful effects of processed foods
A new mouse study identifies a specific bacterium that lives in our gut and breaks down harmful chemicals from processed foods into harmless byproducts. (Medical News Today)

Alzheimer's disease: Brain immune cells may offer new treatment target
A new study attributes the link between tau protein clumping and brain damage in Alzheimer's disease to brain immune cells called microglia. (Medical News Today)

Graphene air filter traps and kills bacteria
Scientists have devised a graphene air filter that can capture and destroy microorganisms, such as bacteria and other infectious agents and contaminants. (Medical News Today)

Breath test for opioids shows promise in pilot study
A pilot study of a new test that detects opioid metabolites in exhaled breath has shown promising results. The next step is a larger validation study. (Medical News Today)

Aging and cancer: A surprising two way relationship
Although aging is the greatest risk factor for cancer, a recent study demonstrates how aging cells might, paradoxically, hinder cancer progression. (Medical News Today)

Drug that targets body clock may prevent heart attack damage
New research in mice shows that an innovative method targeting body clock mechanisms could promote better repair of the heart muscle after a heart attack. (Medical News Today)

What is the impact of cooked vs. raw food on the gut?
A new study in mice and humans confirms that cooked meals affect the gut microbiome differently from raw foods, which may have health implications. (Medical News Today)

How does tooth enamel last a lifetime?
Enamel is the strongest tissue in the human body. A recent study finds that an imperfect alignment of crystals helps produce this incredible resilience. (Medical News Today)

Better quality 'good' cholesterol may fight atherosclerosis in diabetes
Evidence from a new study in mouse models shows that increasing the level of functional 'good' cholesterol may help reverse atherosclerosis in diabetes. (Medical News Today)

Anxiety: Are mitochondria involved?
Scientists link stress to disruptions in energy metabolism in mice and humans who have panic disorder, a form of anxiety disorder. (Medical News Today)

Body clock influences how well the immune system works
Current research in mice demonstrates that body clocks play a crucial role in how effectively certain immune cells respond when triggered to become active. (Medical News Today)

Mouse study sheds new light on fat formation
A recent study in mice has found a new biological mechanism that regulates the formation and accumulation of white fat tissue, a key factor in obesity. (Medical News Today)

Cancer: Why drug testing needs to improve
A new study finds that many new cancer drugs may not work in the way their developers think they do, which could have implications for their effectiveness. (Medical News Today)

Human bodies can move on their own after death, study finds
Dead bodies move on their own after death — likely due to processes of decomposition, researchers suspect, pointing to implications for forensic science. (Medical News Today)

Way to prevent chemotherapy hair loss in sight
Using a mini organ model, scientists reveal how taxane chemotherapy can permanently damage hair follicles, and how a newer class of drug could prevent it. (Medical News Today)

Scientists discover the structure of cancer molecule
New research from the United Kingdom has now revealed the structure and function of a molecule that may help cancer develop and become treatment resistant. (Medical News Today)

Fight-or-flight: Do our bones play a part?
A new study in humans and animals identifies the bone hormone osteocalcin as a crucial driver for the fight-or-flight survival response. (Medical News Today)

Could gut microbes be the key to overcoming muscle loss in older age?
A new mouse study reveals that gut microbes can influence skeletal muscle mass and function and sheds light on some underlying mechanisms. (Medical News Today)

Has a small trial stumbled upon a way to reverse biological aging?
A small clinical trial has found that an experimental treatment meant to reverse the aging of a key player in the immune system achieved a lot more. (Medical News Today)

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