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Tag: "notes" at biology news

Diabetes research takes wing thanks to long-lived fruit fly

...lies, then transferring the findings to people. He notes that the same molecular signals that control how cells divide in fruit flies control how cells divide in people. "We continue to be amazed at how similar a fruit fly is to a person," says Bohmann. "We can accomplish the same thing in fruit flies tha...

Pollutant haze heats the Arctic

...tants, and there also is a strong inversion." He notes that the thickness of Arctic sea ice "is affected by such things as how much the atmosphere blankets the surface. Sea ice is changing very rapidly in the Arctic because of surface warming. This may be one contributing factor." "The Arctic represent...

Scientists describe new African monkey genus ?first in 83 years

...we have to learn about our planet's biodiversity," notes Link Olson, another co-author and Mammals Curator at the University of Alaska Museum. The new African monkey, Rungwecebus kipunji (rhung-way-CEE-bus key-POON-gee), was first described scientifically last year based only on photographs. At that time,...

UNH researcher restoring oyster reefs to Great Bay

...They're marvelous filters," he says. Further, he notes that oyster reefs, much like seagrass beds or coral reefs, support a variety of marine life. "Oyster reefs provide all these nooks and crannies for other organisms," he says, including sport fishes. "If we improve the habitat for oysters we can impro...

Quick -- what’s that smell?

...nd audition in lacking this fundamental property," notes senior author Alan Gelperin, PhD, a computational neuroscientist. "We now can use accumulated information about these other sensory systems to help us understand olfaction." Exactly how the many thousands of different odorants are detected and ide...

Tigers get a business plan

...Alan Rabinowitz, who directs WCS big cat programs, notes that this kind of accountability with specific numbers over a specific time period, is a new concept for conservationists. "We're putting our reputations on the line and holding ourselves accountable that we can grow tiger numbers," said Rabinowitz....

Smell of success for nanobiosensors

...e potential uses of smell technology are endless," notes Josep Samitier, the coordinator of the SPOT-NOSED project that developed nanobiosensors to mimic the way human and animal noses respond to different odours. This new nose biosensor is unusual in how it's made. By placing a layer of proteins that co...

Researchers unveil strategy for creating actively-programmed anti-cancer molecules

...promising the targeting property of the adapters," notes Sinha. The results showed those mice treated with the new compound developed significantly fewer metastases than those treated with other similar compounds or the antibody alone. These results, the study noted, were a "significant enhancement in th...

Ultra low-dose estrogen shown safe for post-menopausal women

...s the liver and go straight to the blood." Yaffe notes that since the WHI results were announced in 2004, "the field of estrogen research has been stymied. Hopefully, this study will start to turn the tide." ...

Basic work on E. coli identifies two new keys to regulation of bacterial gene expression

...dical, environmental and agricultural importance," notes Rick Gourse, a professor of bacteriology who published the Cell paper along with a team from his lab. "This knowledge can ultimately be put to use in systems that aren't so amenable to investigation, such as bacteria that cause cholera, produce anthr...

Mussels evolve quickly to defend against invasive crabs

...esearch associate professor Fred Short. Freeman notes that there's one predator mussels will not need to defend themselves against: him. "I used to like them, before I started working with them for my dissertation," he says. "Not anymore." -30- ...

Sticky surfaces turn slippery with the flip of a molecular light switch

...atory processes on extremely small scales. Belfort notes that the new material could be employed as a surface valve that can be opened and closed by applying light, offering the ability to control liquid flow in a chip's ultra-tiny channels. And in sensors designed to detect biological agents, the abilit...

Researchers develop flood-tolerant California rice

...rgence persists beyond four days. Bailey-Serres notes that access today to information about the rice genome ?all the genetic material in the chromosomes of rice ?has greatly accelerated progress in identifying specific genes that confer specific traits. "Currently, the International Rice Research Insti...

Sandia work launched on space shuttle shows live cells influence growth of nanostructures

...fessor Graham Timmins of UNM's College of Pharmacy notes that the encapsulated cells' unusual longevity may serve as a model for persistent infections such as tuberculosis, which has a long latency period. TB bacteria can remain dormant in vivo for 30-50 years and then re-activate to cause disease. Present...

Despite acidity, orange juice could still be a source of foodborne disease

...is a little bit of both," says Beuchat. Beuchat notes that all outbreaks have been associated with unpasteurized orange juice. Anyone concerned should look for pasteurized orange juice. Most major grocery store brands are already pasteurized. His presentation was part of a large symposium organized ...

Radiation-killed bacteria vaccine induces broad immune response in mice

...oint is potentially of great practical importance, notes Dr. Raz. A serious drawback of live, attenuated vaccines is that they must be kept refrigerated at all times: if the "cold chain" is broken, the vaccine is liable to spoil and become useless. In countries with reliable electricity, maintaining the co...

Viral genetic differences are possible key to HIV dementia

...responsible for the neurological damage." Pillai notes that the issue of HIV dementia is particularly important in regions outside North America and Europe where state-of-the-art antiretroviral medications are not widely available and HIV infection frequently leads to dementia. SFVAMC staff physician...

Study reveals how ADHD drugs work in brain

...n linked with arousal and attentiveness. Berridge notes that scientists have learned little about how ADHD drugs work because past studies have primarily examined the effects of the medicines at high doses. High-dose stimulants can cause dramatic spikes in neurotransmitter levels in the brain, which can i...

New genes implicated in rheumatoid arthritis

...verin is abundantly expressed in synovial tissue," notes the study's leading author, Joseph Holoshitz, M.D. "11ß-HSD2 and Cyr61 have not previously been directly implicated in RA," he adds. Uncovering 3 new genes with a clear abundance in RA, this study supports the promise of microarray analysis to not ...

One-third of adults with diabetes still don't know they have it

...published in the June 2006 issue of Diabetes Care, notes that type 2 diabetes accounts for up to 95 percent of all diabetes cases and virtually all undiagnosed diabetes cases. Diabetes is a group of diseases marked by high levels of blood glucose resulting from defects in insulin production, insulin actio...

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