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Tag: "now" at biology news

Prenatal Stress Keeps Infants, Toddlers up at Night, Study Says

...he same stressful pregnancies. Related studies now show that stress, which is associated with increased exposure stress hormones, like cortisol, may disrupt a childs formation of a bundle of nerve cells in the brain called the suprachiasmatic nucleus which act as a signaling system that tunes the b...

Scratch no more: Gene for itch sensation discovered

...er anti-itch remedy" Your wish may soon be granted now that scientists at Washington University School of...know of some proteins that are similar to GRPR, so now we're trying to determine if there is functional redundancy in the itching pathway." GRPR knockout ...

FDA sees nanotech challenges in every product category it regulates

...of the first generation of nanotechnology products now on the market are in sectors where FDA’s statutory authority is weakest—areas like cosmetics and dietary supplements,” stated Project on Emerging Nanotechnologies Chief Science Advisor Andrew Maynard. “The Task Force report clearly states that size m...

Common cancer gene sends death order to tiny killer

...nes in human cancers," says Mendell. "And there is now a great deal of evidence that microRNAs themselves can act to either promote cancer or to stop cancer spread." To test their idea, the team first chemically damaged the DNA of two sets of colon cancer cells, one missing p53 and the other containin...

Cellular message movement captured on video

...d cells can’t reveal paxillin movement. “We can now see the dynamics of how paxillin and other proteins move inside the cell with new fluorescent labels and live-cell video microscopy,” said Chien, director of the Whitaker Institute of Biomedical Engineering at the Jacobs School. The two-color labe...

Researchers discover inherited mutation for leukemia

...h at Creighton University. The researchers are now studying the chemical pathway that regulates the gene, considering possible therapies, working to identify other CLL families and looking for other predisposing genes. In 2005, other Ohio State Comprehensive Cancer Center researchers discovered a...

Agent slows aging in mice

... synthetic derivative of a pungent desert shrub is now a front- runner in ongoing animal experiments to f...ng for the National Institute on Aging. The study, now in its fourth year, will test as many as two dozen possible anti-aging agents in animals in the next...

Enzyme delivered in smaller package protects cells from radiation damage

...iminished radioprotection to cells. "Because we now can deliver MnSOD in this very small vector, we will be able to get this radioprotective enzyme more efficiently into all of the cells of the body and give patients receiving total body radiation for systemic cancers better long-term outcomes. This a...

Blood test may help signal tumor's remission, return in throat cancer patients

...g, in many cases physicians and their patients are now opting for a combination of chemotherapy and radiation as a first line of treatment. However, there is no way to predict which patients will respond well to this treatment or whether a tumor will return later. Clinical exams, X-rays, and magnetic res...

Releasing fish for the future

...g caught and released annually. New research is now seeking to maximise the post-release survival of other commonly-caught species including luderick, sand mullet, garfish, tailor, Australian bass, Murray cod and golden perch. NSW DPI scientists Matt Broadhurst and Paul Butcher have shown that mort...

Threats to wild tigers growing

The wild tiger now occupies a mere 7 percent of its historic range, and the area known to be inhabited by tigers has declined by 41 percent over the past decade, according to an article published in the June 2007 issue of BioScience. Growing trade in folk medicines mad...

Old memory traces in brain may trigger chronic pain

... pain,” Apkarian said. “What’s exciting is that we now may be relieving what has clinically been the most difficult to treat—the suffering or the emotional component of pain.” Scientists have always tried to understand pain from the viewpoint of sensation, Apkarian said. “To control it, they tried t...

Discovery in orange cauliflower may lead to more nutritious crops

...liflower field in Canada about 30 years ago and is now available at supermarkets....

How sneaky HIV escapes cells

...xploit other cell processes for their own ends, it now appears they rely on exosomes to get out of infected cells and infect fresh cells. As such, drugs that interfere with exosome formation might be one way to inhibit HIV infections. “Viruses like HIV use pathways we barely recognize, much less under...

The insect vector always bites twice

...s. Analysis of the host-vector relationship, up to now dealt with mainly from the angle of allergic respo...in the search for veterinary vaccines, constitutes now an important research path for new surveillance and prevention strategies. ...

Envisat captures first image of Sargassum from space

... unique view of the Earth." Gower and King are now combining data from MERIS with a sophisticated processing algorithm and powerful Grid computing to broaden this new view. The basic principle behind Grid computing is that anything one computer can do, a pool of computers can do faster and better, en...

Largest synthetic gene ever built offers insights into anti-malarial drug resistance

...ntities of the encoded protein, whose function can now be easily studied. In research published in the M...parasite escapes destruction by most of the agents now used against it, he said., When a malaria parasite is transmitted through a mosquito bite, the ...

Pesticides choke pathway for nature to produce nitrogen for crops

... The researchers say that field-wide experiments now are needed, in addition to tests to determine the exact elements of pesticides that inhibit natural plant-bacteria interaction. ...

Caribbean frogs started with a single, ancient voyage on a raft from South America

...essible areas. Some species included in the study now are believed to be extinct because of habitat degradation and possibly other causes such as climate change. A recent global assessment of amphibians found that the Caribbean Islands have the highest proportion of amphibian species threatened with ex...

Study shows big power of small RNAs, not just proteins, in halting cancer

...ut this latest research published June 6 by Nature now identifies miRNAs as a critical force behind the anti-proliferation potential of p53. Expression of most miRNAs is reduced in tumors, suggesting that some miRNAs act to prevent tumor formation. By comparing levels of miRNAs in cells with a var...

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