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Industrialization reshapes gut microbes, from bacterial communities to their DNA, studies find
المصدر: Phys.org - latest science and technology news stories · نُشر
The totality of bacteria, viruses and fungi that exist in and on a multicellular organism forms its natural microbiome. The interactions between the body and these microorganisms significantly influence the host organism's functions and health. Among other things, researchers hav
The totality of bacteria, viruses and fungi that exist in and on a multicellular organism forms its natural microbiome. The interactions between the body and these microorganisms significantly influence the host organism's functions and health. Among other things, researchers have shown that the microbiome plays an important role in defense against pathogens.
On the other hand, they suspect that imbalances in the microbiome's composition are linked to the development of so-called environmental diseases, such as chronic inflammation.
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Predicting jumping genes' roles in changing genome size
A genome contains all of the DNA of every living organism, but its contents don't stop there—most of these structures also contain snippets of DNA that can copy and paste themselves to "infect" a genome, expanding its size. Precisely why that happens remains a mystery.
Phys.org - latest science and technology news stories ·
30,000-year-old DNA reveals Ice Age Europeans were far more connected than we thought
Scientists have uncovered surprising DNA evidence that Europeans living more than 30,000 years ago were connected across vast distances, challenging the idea that ancient populations remained largely isolated. Genetic clues from human remains and cave sediments reveal prehistoric
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Scientists discover a bacterial defense so strange they thought it was broken
Scientists have discovered a bizarre bacterial defense system that works almost completely backward from anything seen before. Unlike typical bacterial immune systems that keep a deadly toxin under control until a virus attacks, this unusual mechanism waits until an infection beg
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The asteroid that killed the dinosaurs may have helped ants conquer the world
The asteroid that killed the dinosaurs may have set the stage for ants to conquer the planet, with a surprising boost from “jumping genes” hidden in their DNA. Scientists discovered that bursts of activity from these mobile genetic elements coincided with the rise of major ant gr
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The FDA wants to pull its approval of a drug. It’s not so easy.
In May 2021, the US Food and Drug Administration released a lengthy briefing document on an experimental medication for a rare autoimmune form of vasculitis that often damages the kidneys and lungs. The agency was on the fence about whether to approve the treatment, and it wanted
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