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Tag: "protective" at biology news

A new molecule discovered in the battle between plants and disease

... receptor protein to which Pep1 binds to exert its protective effects. Pep1 was isolated from the plant Arabidopsis thaliana, which is a species favored by investigators for attributes that facilitate experimentation, but the same molecule is found in crop species such as canola, soybean, potato, tomato, rice,...

Study identifies gene in mice that may control risk-taking behavior in humans

...lk along narrow, unprotected walkways or arms with protective walls. Half of the time the neuroD2-deficient mice chose the unprotected arms, whereas the normal mice almost always chose the protected arms, Olson said. "All of this matches very well with previous observations that the amygdala is responsible fo...

Plant pathologists evaluate eco-friendly alternatives to methyl bromide

...mide's ability to deplete ozone and disrupt the UV protective ozone layer. The EPA determined that, under the Clean Air Act, this fumigant must be phased-out by 2001, but in compliance with the Protocol, the complete phase-out was scheduled for 2005. Currently, only uses deemed as critical by the international ...

Discovery of T-cell 'traffic control' boosts new drug promise

... says. Such drugs do not interfere with essential protective immune function since bacterial proteins that normally trigger immune defense do so when they enter lymph nodes -- "where the T cells are essentially trapped by the drug for a few days, but still are working fine and allowing new antibody formation,"...

When in danger humans are similar to a deer in the headlights

...ng still when a threat is detected is a defensive, protective reaction. This ancestral and automatic behavior allows the prey to stay unnoticed by a potential predator. A new study published in Psychophysiology finds that humans, like many other complex animals, freeze when encountering a threat. The mere pictu...

Old drug, new tricks: Prospects for slashing the impact of malaria

... that Fansidar could have a new lease on life as a protective drug that strengthens a person's own immune system against malaria. Early field experiments were conducted in the African country of Tanzania in the late 1990s. These suggested that giving just one Fansidar tablet to an apparently healthy child dur...

The very defensive caterpillar

...ars has recently shown that, instead, they produce protective proteins in response to bacterial infection. The p...wn that several different proteins can confer this protective effect against subsequent infections. Micro-organisms such as bacteria, fungi and nematodes are oft...

Stem cells bring fast direct improvement, without differentiation, in acute renal failure

...searchers deduced that the mechanism mediating the protective effects of MSC (mesenchymal stem cells) "must be primarily paracrine, as implied by their demonstrated expression of several growth factors such as HGF (hepatocyte growth factor), VEGF and IGF-1, all known to improve renal function in ARF, mediated b...

Researchers report breakthrough against world’s deadliest viruses

...t. "These cells are also important in generating a protective immune response. So the vaccine goes exactly where we want it to go." The study describes how Canadian researchers developed the vaccines by replacing a surface protein in an animal pathogen, called vesicular stomatitis virus, with a surface protein...

New technique could alter field of mouse genetics

...he immune system can generate a huge assortment of protective antibodies. Bacteria use the mechanism to swap antibiotic-resistance genes among themselves. And scientists have "borrowed" and adapted the same handy technique to insert genes and mutate genes in fruit flies and simpler organisms to learn the functi...

New gene scanning technology marks a major advance in disease research

...es which may have either mild, moderate, severe or protective disease effects, a bit like the medical equivalent of finding a needle in a haystack. 'While this approach is currently at the research level, in the future it could lead to a very personalised genetic profile of a whole range of genes relevant to l...

Molecular trigger for Huntington's disease found

... allows abnormal cancer cells to escape the cell's protective "suicide program" that would normally kill them. T...ce of cancer in HD patients could be caused by the protective effect of overactive p53. In the July 7, 2005, issue of Neuron, Akira Sawa and colleagues at Johns ...

Researchers develop new testing methods for potential monkeypox or smallpox outbreak

... "In our study, we found one subject who had fully protective immunity that was maintained for 48 years after a ... previously vaccinated people would maintain fully protective immunity against virulent poxvirus infections, and these findings are totally in line with what we e...

Tiny roundworm's telomeres help scientists to tease apart different types of aging

...tinual and inevitable shortening of telomeres, the protective "caps" at the end of all 46 human chromosomes, has been linked to aging and physical decline. Once they are gone, so are we. But there are more ways than one to grow old. Researchers at Salk Institute for Biological Studies demonstrate for the first...

UF scientist finds unexpected link between cat and human AIDS viruses

...ines for canine distemper in puppies. "Therefore, protective vaccines based on cross-reactive regions of AIDS viruses can provide broad immunity, and may be useful against viruses that are currently evolving in a new host, such as HIV infection of humans," Yamamoto said. Alan L. Landay, a professor of immunol...

Researchers find Amchitka seafood safe for now

...se a difficult challenge for those responsible for protective monitoring of the remote Amchitka Island since the presence of long-lived radioactive materials will require long-term attention to a site that may eventually pose potential risk to future generations." There is no currently known technology to addre...

Study provides insight into cellular defenses against genetic mutation

...herwise destroy it from both ends. Along with its protective role, the 5-prime cap is designed to bind to a complex of two linked cap-binding proteins (CBPs), CBP80 and CBP20. The cap-binding complex is part of the larger pioneer translation initiation complex, which enables mRNAs to be read by ribosomes duri...

Hand sanitizer gel works

...ed in the April issue of Pediatrics, did observe a protective effect against respiratory illness among families who used hand sanitizer gels at their own initiative. The alcohol-based gels, widely available in stores, do not require water and rapidly kill most bacteria and viruses on the skin. They are a conve...

Gene that helps mosquitoes fight off malaria parasite identified

...ulting in more than 2 million deaths annually. The protective gene was identified in a study conducted by a team of investigators from the Johns Hopkins Bloomberg School of Public Health's Malaria Research Institute, the Imperial College of London and the University of Texas Medical Branch. It will be published...

UT Southwestern researchers develop screening test for cells that activate immune system

... antigens to the immune system so that you develop protective immunity for infection and cancer," said Dr. Takashima. The DC biosensor system should help pharmaceutical and biotech companies sift through large numbers of chemicals for ones that tell the dendritic cells to launch the immune response. It may al...

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