Tag: "dormant" at biology news
LSU scientists develop new theory about human genome evolution by tracking 'stealth' DNA elements
...e for long periods of time may not be simply lying dormant
after all. Instead, Batzer and his team have discovered that these elements played a crucial role in human evolution by secretly spawning hyperactive copies, giving rise to the most abundant family of transposable elements in the human genome, known ...
Promoting hair growth
...y -catenin/Wnt signaling are involved in coaxing a dormant
stem cell to become active and produce a hair follicle. This study not only provides the best evidence to date to demonstrate this, but it also identifies a group of key genes involved in this crucial activation step."...
Pollution-eating bacteria produce electricity
...usly generate electricity. A bacterial spore is a dormant
stage of growth for the organism and is highly resistant to heat, radiation and drying. Such characteristics could prove useful in future microbial fuel cell designs where the device need not always be operational but must survive long periods of ha...
Joslin's new textbook is leading source for advances in diabetes care
...ce energy. The role of fat cells--once considered dormant
storage sites--which is thought to include secretion of a protein that regulates body tissues, such as brain cells and blood vessels. An additional role for islet cells, which, in addition to secreting insulin, produce proteins that enhance insulin ...
Social amoeba sheds light on communication in human brain
... human brains, causes the social amoeba to enter a dormant
or "sleep" phase, may provide new insights into ho...um use to synchronize the formation of spores--the dormant
phase of the organism. The researchers were surprised to find that SDF-2 is similar to a "natural V...
A little stress gives beneficial oomph! to immune system
...es are always present in the body, but most remain dormant
until an immune response is activated by wounding or infection or until the brain identifies a stressful situation. When that happens, the brain releases hormones that set troops of these immune cells into motion. The cells travel to potential battle...
Nanobacteria in clouds could spread disease, scientists claim
...r-cloud regions, leading to oscillations between a dormant
state and one of activation," explained Professor Wickramasinghe. "Remnants of a sticky protein (slime) coating nanobacteria makes them act as extremely efficient cloud condensation nuclei, with a tendency to aggregate to clusters upon contact." The...
Scientists seek answers on what activates deadly anthrax spores
...concerns the germination process through which the dormant
spore becomes a reproductive, disease-causing bacterium," explained Al Claiborne, Ph.D., the principal investigator. "The potential importance of such a germination control mechanism in anthrax is clear, as spore germination and outgrowth are fundame...
Scientists find missing enzyme for tuberculosis iron scavenging pathway
...re taken up by macrophages in the lung and enter a dormant
state these are the hardest to attack with drugs."...
Treated fabric kills anthrax spores
...ic treated with an antimicrobial compound can kill dormant
anthrax spores and could provide the basis for enh...for Microbiology Biodefense Research Meeting. "The dormant
phase of the anthrax spore is the hardiest phase of the spore and the most difficult to kill. If thi...
Food preservative neutralizes anthrax spores
...hal infection in mice, the treated spores remained dormant
and caused no apparent disease. The next step for the researchers is to formulate a delivery system. One that appears to have promise is an impregnated wipe. A similar product, with a much lower concentration of nisin than would be necessary agai...
Study shows naturally occurring proteins protect against rapid tumor growth
...uma [i.e. automobile accidents, suicide] have tiny dormant
tumors in one or more of their organs, though only...sels into the tumors, and thereby keeping the tiny dormant
tumors from developing into large malignant tumors. We wanted to better understand the important gua...
Removing prions that cause mad cow in humans from blood
...ic characteristic poses the key question: How many dormant
carriers of vCJD are out there who are at risk of developing clinical disease and who also may be blood donors? There is currently a ban on blood donations from people who lived in countries with bovine spongiform encephalopathy (BSE) infected catt...
Found: Missing sequence of the human Y chromosome
...uences. This highly repetitive, transcriptionally dormant
genomic landscape, termed "heterochromatin," defines approximately two-thirds of the Y chromosome, including a section spanning the centromere. Such repetitive sequences, although not recalcitrant to cloning, are laborious to assemble, requiring met...
ESA's Huygens begins its final journey into the unknown
...ly reached the Earth. The Huygens probe is now dormant
and will remain so for its 20-day coast phase to Titan. Four days before its release, a triply-redundant timer was programmed in order to wake-up the probe's systems shortly before arrival on Titan. Huygens changing its parachutes Explor...
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