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Tag: "when" at biology news

Rats infected as newborns grew up vulnerable to memory problems during an immune challenge

...e the third trimester in human pregnancies, a time when the brain grows significantly. Once the pups grew up, Bilbo and her colleagues tested the adults' memory about 60 days after birth. To test memory, each rat was allowed to explore a novel experimental chamber for several minutes on the first day. On...

Mayo Clinic Researchers Create 'Obedient Virus'; First Step To Use Measles Virus Against Cancer

... became the focus of this vision several years ago when the surprising finding was made that the measles strain used internationally for vaccinations has natural anticancer activity. "But we had a concern that the measles virus may be a little too promiscuous in its ability to infect both cancer cells an...

Artifical cornea lets woman blind 20 years see

...n robbed Elma Phifer of her vision two decades ago when she was 39. The reaction scarred her corneas and reduced the ability of her eyes to soothe their damaged surfaces by remaining moist. She came to rely upon family and friends to help her do many of the activities people with normal vision sometimes ...

Effective Cancer Treatments Follow The Clock

...irmed that animals treated with CY survived better when they received treatment in late afternoon than tho...e internal clock may produce very different effect when compared to defects in Cryptochrome gene, which, in contrast, `jams' the circadian clock at the most...

Genetically modified rice in China benefits farmers' health, study finds

...nsect-resistant GM rice varieties demonstrate that when compared with households cultivating non-GM rice, ...use by 15 pounds per acre, an 80-percent reduction when compared with pesticide use by farmers using conventional rice varieties. Rice yields The survey d...

Use of Insecticides Linked to Lasting Neurological Problems for Farmers

... experienced increased neurological symptoms, even when they were no longer using the products. Data from ...cide poisoning or high dose exposures, for example when large amounts of a chemical were accidentally spilled on the skin," said Freya Kamel, Ph.D., a resea...

LUCA technologies confirms real-time methane generation

...as thought to have occurred millions of years ago, when the hydrocarbon deposits were less mature and closer to the surface of the earth. Luca scientists, employing the tools of modern biotechnology and genomics, have now shown that living methane generating, microbial consortia are present and actively ...

Vampire bats keep out of trouble by running

...on the ground; other bat species fumble helplessly when left to walk. But researchers in Cornell's College...earchers say, the ability to run evolved long ago, when vampire bats had to prey on faster South American athletes such as the agouti, a rodent about the si...

Surprising findings reported about iron overload

...nt in the South, and sometimes causes organ damage when severe iron deposition occurs due to inadequate control of iron absorption by the small intestine. The first major report of findings in the five-year, 100,000-person study will be published tomorrow, April 28, in The New England Journal of Medicine...

Scientists discuss improved biopesticides for locust control in West Africa

...w because they do not breed in the dry season, but when the annual spring rains begin, they are expected t...ghan has been active in locust control since 1997, when he assumed coordination of the USAID-funded project at Virginia Tech, "Development of Biopesticides ...

Drug-resistant bacteria on poultry products differ by brand

...rough cross-contamination during food preparation, when raw poultry is handled in the kitchen. The danger of infection is heightened when this pathogen is resistant to antibiotics. Not only can the bacteria itself cause illnesses such as ...

Programmable cells: Engineer turns bacteria into living computers

...E. coli. In one experiment, the cells glowed green when they sensed a higher concentration of the signal chemical and red when they sensed a lower concentration. In a Petri dish, they formed a bull's-eye pattern -- a green circ...

Gene Signatures Predict Interferon Response For Multiple Sclerosis Patients

... (MS) can be an unpredictable disease. It develops when the body's immune system attacks healthy nerve cells and disrupts normal nerve signaling. Patients experience a wide range of symptoms—including tingling, paralysis, pain, fatigue, and blurred vision—that can appear independently or in combination, s...

Wisconsin researchers identify sleep gene

...control sleep duration as opposed to the timing of when sleep occurs, which is regulated by the circadian ...al sleepers. But these flies became short sleepers when the researchers removed genetic modifiers from their genome. "This told us that genetic forces push...

Norovirus, AIDS vaccine and Hepatitis Virus

.... The protein interferon, produced by animal cells when they are invaded by viruses, is released into the bloodstream or intercellular fluid to induce healthy cells to manufacture an enzyme that counters the infection. One class of interferons (alpha) is used to treat chronic infection with HBV and HCV. T...

BioMed Central welcomes the new National Institutes of Health public access policy

...rantees now have a new factor to take into account when choosing where they wish to publish their research. To fulfil the NIH request, authors publishing with most of the traditional subscription publishers will be expected to go through a process of resubmitting their papers to the PubMed Central reposit...

Substance protects resilient staph bacteria

...atory has indicated that PGA production is greater when a biofilm is present. Further, Dr. Otto says all 74 strains of S. epidermidis that his group tested also produced PGA, as did six other genetically related Staphylococcus pathogens. "This could be very important to vaccine development because the PGA...

Chemists identify immune system mechanism for methamphetamine binges

...te the chemical reactions that occur with the drug when it enters the bloodstream, the researchers showed that methamphetamine reacts with glucose and proteins to form a larger-size "glycated" product. This product is then recognized by immune system components, stimulating the production of antibodies to...

Great White shark evolution debate involves WSU Lake Campus geology professor

...because they bring out the fears of our childhood, when they were perceived as scary monsters," he explained. His interest in sharks is apparent when entering his office. The door and walls have pictures of shark teeth, and there are posted reference...

Fleshing out the genome

...his case those which were expressed in the microbe when subjected to stress. The proteomic analyses were done by four teams led by Kolker, Carol S. Giometti, Argonne National Laboratory (ANL); John R. Yates III; The Scripps Research Institute (TSRI); and Richard D. Smith, W.R. Wiley Environmental Molecula...

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