Category: Biochemistry

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The Bright Side of Prions

In Kurt Vonnegut’s Cat’s Cradle, scientists create a highly stable form of crystalline water called “ice-nine” that stays frozen even at high temperatures. Ice-nine instantly freezes any liquid water it touches. Its accidental release into...

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Platelets Help Tackle Bacteria

Platelets, known for slowing bleeding upon injury, may also play a key role in immunity, according to a new study that found platelets in the livers of mice engulfed blood-borne bacteria, protecting the animals...

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Blood Protein Rejuvenates Aging Heart

Using proteomics in combination with a 19th-century surgical technique in which the circulatory systems of two mice are joined together, researchers have demonstrated that a protein found only in the blood of young mice...

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DNA’s damage control

Organisms respond to DNA damage by one of two cellular coping mechanisms: they either repair the genomic injury or destroy the damaged cells through a process of programmed cell death, or apoptosis. Achieving the...

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Buffering Against Alcohol

A nanocomplex of enzymes can lower blood alcohol levels and reduce liver damage in intoxicated mice, according to a study published today (February 17) in Nature Nanotechnology. The research, which employed a new technique to...

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E. coli kNOws How to Win

Changes in the microbial community structure are observed in individuals with intestinal inflammatory disorders. These changes are often characterized by a depletion of obligate anaerobic bacteria, whereas the relative abundance of facultative anaerobic Enterobacteriaceae...

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The bacterial alchemist

A species of bacterium forms tiny nuggets of gold to combat the toxic effects of the dissolved form of the element. The bacterium Delftia acidovorans lives in extensive communities — known as biofilms — that coat...

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