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Tag: "dormant" at biology news

Study uncovers dirty little secret: Soil emissions are much-bigger-than-expected component of air pollution

...ns come to the Sahel after a six-month dry season, dormant soil bacteria reawaken and begin processing nitrogen. The satellite then detects a sudden pulse of nitrogen oxides, Jaeglé said. Similarly, emissions in the mid-latitudes of the Northern Hemisphere spike during the growing season, spurred by warmer t...

Scientists discover gene that controls speed of tuberculosis development

...5% appear to be able to contain the infection in a dormant state, so that they do not become ill." Dr. Schurr has spent the past 5 years researching why and how this happens. The new research focused on NRAMP1--a gene already known to be involved in many other illnesses, including diseases as diverse as lep...

Pollution-eating bacteria produce electricity

...ously 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 haz...

One bacteria stops another on contact

...tact. The bacteria that stop growing may go into a dormant state, rather than dying. The findings have implic...ar to stay intact, perhaps in a quiescent mode, or dormant state." Aoki explained, "We are currently exploring how contact between bacteria can inhibit cell g...

Survey reveals women and doctors aren't talking about HPV

...ve adults in their lifetime, in some cases staying dormant until years after the initial infection. Yet few a... cases, the infection persists - sometimes staying dormant in the body months or even years before it becomes active, with the potential to cause cell changes ...

Young Blood Revives Aging Muscles, Stanford Researchers Find

... cells, that dot muscle tissue. These normally lie dormant but come to the rescue in response to damaged muscle-at least they do in young mice and humans. In older mice the satellite cells hold the same position, but are deaf to the muscle's cry for help. In the Nature study, Rando and his group first attac...

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...

Protein Discovery Could Unlock The Secret To Better TB Treatment

...e way to designing drugs which enable treatment of dormant and multidrug resistant TB. In England and Wales ... allow the development of methods to 'wake-up' all dormant bacteria in a patient allowing antibiotics to kill the bacteria and cure the disease." The team inc...

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...

Jefferson Virologists Coax HIV Out of Hiding

...hey were wrong. The virus instead goes intohiding, dormant and practically undetectable in the body ?andimpervious to attack. While HAART manages to keep the virus at bay,it’s still quite capable ?given the right opportunity ?of replicatingand wreaking havoc on the body’s immune system.Now, virologists at Je...

Found: Missing sequence of the human Y chromosome

...quences. This highly repetitive, transcriptionally dormant genomiclandscape, termed "heterochromatin," defines approximately two-thirdsof the Y chromosome, including a section spanning the centromere. Suchrepetitive sequences, although not recalcitrant to cloning, arelaborious to assemble, requiring meticulo...

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." ...

Protein discovery could unlock the secret to better TB treatment

...e way to designing drugs which enable treatment of dormant and multidrug resistant TB. In England and Wales ... allow the development of methods to 'wake-up' all dormant bacteria in a patient allowing antibiotics to kill the bacteria and cure the disease." The team inc...

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