Category Biology/Biotechnology

Tiny High-Tech Probes reveal how Information flows across the Brain

Data gathered with Neuropixels, tiny silicon probes capable of recording electrical activity from hundreds of neurons at a time.

A new study from researchers at the Allen Institute collected and analyzed the largest single dataset of neurons’ electrical activity to glean principles of how we perceive the visual world around us. The study, published Wednesday in the journal Nature, captures the hundreds of split-second electrical signals that fire when an animal is interpreting what it sees.

Your brain processes the world around you nearly instantaneously, but there are numerous lightning-fast steps between light hitting your retinas and the point at which you become aware of what’s in front of you...

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NAD+ can restore Age-related Muscle Deterioration, research finds

NAD+ Can Restore Age-Related Muscle Deterioration - EPFL
Scientists at EPFL have discovered that Alzheimer’s-like protein aggregates underly the muscle deterioration seen in aging. But the aggregates can be reversed by boosting the levels of nicotinamide adenine dinucleotide (NAD+), which turns on the defense systems of mitochondria in cells and restores muscle function.

Scientists have discovered that Alzheimer’s-like protein aggregates underly the muscle deterioration seen in aging. But the aggregates can be reversed by boosting the levels of nicotinamide adenine dinucleotide (NAD+), which turns on the defense systems of mitochondria in cells and restores muscle function.

The older we grow, the weaker our muscles get, riddling old age with frailty and physical disability...

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Rapid Blood Test identifies COVID-19 patients at high risk of severe disease

WANDY BEATTYA new study from Washington University School of Medicine in St. Louis suggests that measuring mitochondrial DNA in the blood of patients with COVID-19 can help predict which patients are at highest risk of severe disease, requiring more intensive care. Mitochondrial DNA levels are a measure of tissue damage. Pictured are damaged mitochondria (dark grey areas) released from human lungs. The small dark dots surrounding the mitochondria are magnetic beads that carry antibodies used to isolate and study unhealthy mitochondria that have been released from dying tissues.

Measuring mitochondrial DNA could predict who will need ICU care, intubation...

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Scientists reveal mechanism that causes Irritable Bowel Syndrome

Patients with irritable bowel syndrome are not always taken seriously by doctors, says Professor Guy Boeckxstaens. | © Shutterstock

KU Leuven researchers have identified the biological mechanism that explains why some people experience abdominal pain when they eat certain foods. The finding paves the way for more efficient treatment of irritable bowel syndrome and other food intolerances. The study, carried out in mice and humans, was published in Nature.

Up to 20% of the world’s population suffers from the irritable bowel syndrome (IBS), which causes stomach pain or severe discomfort after eating. This affects their quality of life...

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