(Phys.org)—Macrophages are heavy hitters of the immune system. Their name literally means "to eat large objects." They are critical members of the body's defense team, such as in the lungs where they ingest ...
Oct 05, 2012
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Scientists have discovered an unusual symbiosis between tiny single-celled algae and highly specialized bacteria. Their partnership plays an important role in marine ecosystems, fertilizing the oceans by taking nitrogen from ...
Sep 20, 2012
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A paper recently published in the Journal of Animal Science helps researchers further understand how microbials and probiotics affect poultry health.
Sep 12, 2012
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(Phys.org)—A study of more than 6,000 genes in a common species of yeast has identified the pathways that govern the instability of GAA/TTC repeats. In humans, the expansions of these repeats is known to ...
Sep 10, 2012
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A by-product of biofuel manufacture can power microbial fuel cells to generate electricity cheaply and efficiently, according to scientists presenting their work at the Society for General Microbiology's ...
Sep 05, 2012
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(Phys.org)—It's not just a few key genes and proteins that cycle on and off in humans in a 24-hour circadian pattern as the sun rises and falls. Thousands of genes in organs throughout the body show predictable daily fluctuations, ...
Sep 03, 2012
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Open an undergraduate biochemistry textbook and you will learn that enzymes are highly efficient and specific in catalyzing chemical reactions in living organisms, and that they evolved to this state from ...
Aug 30, 2012
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Unlike ordinary cells, cancer cells devote most of their energy to reproducing themselves. To do this, they must trigger alternative metabolic pathways that produce new cellular building blocks, such as DNA, ...
Aug 27, 2012
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(Phys.org) -- With a milliseconds long flash of blue light, Yale University researchers regulated a critical type of signaling molecule within cell membranes, another illustration of the power of light-based ...
Jul 31, 2012
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In mammals, most lipids (such as fatty acids and cholesterol) are absorbed into the body via the small intestine. The complexity of the cells and fluids that inhabit this organ make it very difficult to study in a laboratory ...
Jun 28, 2012
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(Phys.org) -- A Lausanne-based research team has identified a molecule naturally present in milk and other foods, nicotinamide riboside, that has extraordinary health benefits. Their findings indicate it could play an important ...
Jun 06, 2012
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Knowing how a living cell works means knowing how the chemistry inside the cell changes as the functions of the cell change. Protein phosphorylation, for example, controls everything from cell proliferation ...
Apr 30, 2012
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