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Tag: "affected" at biology news

Anti-inflammatory drug's potentially deadly side effect found to be rare

...e way the body controls the JC virus that is being affected by the action of natalizumab," he says. To help insure their independence in the review of patients who took natalizumab, Clifford and his colleagues formed an independent adjudication committee with its own charter. The committee's other members we...

Mutation in blood stem cells provides clues to cancer development

...h as self-renewal, survival and proliferation, are affected ?and to duplicate this in-vitro research in mouse models. Working with specific inhibitors developed by local pharmaceutical companies, the UCSD and Stanford researchers plan to conduct clinical trials in the near future and are working with colleag...

Is the brain wired for faces?

...ity to recognize other objects, such as houses, is affected only slightly. "We think that this is because we are face 'experts,' having learned over many years to spot fine differences in upright faces, but not in inverted faces. That experience makes faces unique, but there's nothing scientifically special ...

How to grow a bigger brain

...siology and behavior at UC Davis. "A simple change affected brain growth in a large-scale way." The results could affect the design of hatcheries for breeding fish to restock wild populations, Kihslinger said. The study is published in the February 2006 issue of the Journal of Experimental Biology. Wild ste...

Protein receptor cools passion of 'kiss and run' nerve cells

...at fires the packet of neurotransmitter -- that is affected by 5-hydroxytryptamine, or 5-HT, a body chemical often associated with mood. When 5-HT binds to this cell receptor, it activates something called a G protein that is made of two subunits -- one called alpha, the other beta-gamma. When these subunits ...

Pennsylvania researchers find liver transplants provide metabolic cure for rare genetic disease

...e improved the health and developmental outcome of affected individuals. "Nevertheless, the risk for metabolic crisis and acute neurological injury is always present, and many older individuals with MSUD suffer from depression, anxiety, and impaired concentration and learning," Dr. Strauss said. "Liver tran...

Report lists top 20 most-vulnerable African carnivores

...he domain, they found that three of these severely affected the binding of the chromosome end. "They turned out to be lined up right within that groove," Cech said. The scientists found that these same mutations abolished telomerase's ability to extend telomeres, demonstrating that the groove was important ...

Groovy protein essential for promoting cancer development

...he domain, they found that three of these severely affected the binding of the chromosome end. "They turned out to be lined up right within that groove," Cech said. The scientists found that these same mutations abolished telomerase's ability to extend telomeres, demonstrating that the groove was important ...

Yale researchers find environmental toxins disruptive to hearing in mammals

...t the hearing in marine and other mammals could be affected by environmental toxins, such as TBT (tributyl tin), because they appear to alter the balance of chloride ions in the outer hair cell." Sensitive hearing in mammals relies on cochlear amplification resulting from the motor activity of outer hair ce...

Not just the birds

...ia - Davis have shown that a top predator strongly affected plants and animals at the bottom of an island food...d that the introduction of a top predator has even affected this system. "Our results show that the ecological effects of fox introductions extended well beyon...

Dogs keep dying: Many owners unaware of toxic dog food

...food containing a lethal toxin. To better screen affected dogs so they can be treated as soon as possible, C...rably ill dogs," said Center, noting that severely affected dogs suffer from intractable vomiting and internal bleeding. "Despite our understanding of this comp...

Novel method reveals how menthol discovery could point towards new or improved pain therapies

...ts out of which we isolated five that specifically affected menthol activity. Our experiments yielded significant insights into the functional elements of TRPM8 ion channel protein that would have been difficult to obtain using other mutagenesis methods." Because the methodology can be used to screen for a...

Unraveling the mysteries of poison

...g at spectroscopic data before and after the toxin affected the channel, it turned out that the poison attaches to a particular area of the channel ?the pore region ?and changes the area's structure. The poison is thus only effective when it recognises a particular amino acid sequence in the ion channel. It i...

UC Riverside psychologist explores human perception, finds 'wow factor'

...eks a better understanding of how human hearing is affected by silent objects. His projects are all motivated by theoretical questions rather than a quest for a particular application, Rosenblum said, but real-world considerations are important. "We discuss practical applications in papers so engineers can u...

Losing sleep undoes the rejuvenating effects new learning has on the brain

... to see if other competing processes are similarly affected by sleep restriction," Hairston said. For example, scientists know that people who have suffered certain types of brain lesions may be unable to screen out irrelevant stimuli such as random noises in a room, something healthy individuals do easily. ...

How marine reserves are giving coral reefs a helping hand

...ues looked at how a marine park in the Bahamas was affected by the return of the reef's top predator, the Nassau Grouper. Researchers were concerned that an increase in groupers could have an adverse effect, because they feed on parrotfish which play a vital role in maintaining the reef ecosystem. Dr Peter M...

Less antibiotic use in food animals leads to less drug resistance in people, study shows

...er the country's restrictive antibiotic policy has affected bacterial drug resistance, Australian researchers examined C. jejuni isolates collected from 585 patients in five Australian states. None of the patients had received fluoroquinolone treatment within the month prior to becoming ill. The researchers d...

Extinctions linked to climate change

...e frequency and intensity of El Nino events, which affected precipitation in the Cascade Range of the Pacific Northwest. Ultimately, that resulted in lowered water depths in mountain lakes, higher levels of exposure of amphibian embryos to UV-B radiation in sunlight, and egg mortality in the western toad that...

Salmonella caught red-handed

...f genes responsible for the proteins to see how it affected the disease's progress. "Knocking out" the gene was equivalent to blocking its corresponding metabolic path, thereby simulating the effect of antibiotics. The analysis demonstrated the following: in the two possible types of salmonella-related illnes...

How 'hot' emotional brain interferes with 'cool' processing

... known that people with such problems are far more affected by emotional distraction. Development of new drugs to alleviate, for example, the haunting memories of PTSD sufferers will be aided by the fMRI technique the researchers developed to precisely measure this distraction, they said. The researchers, ...

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