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Tag: "was" at biology news

Hearts of male and female rainbow trout are different

...r hypoxic (oxygen shortage) conditions, but gender was not specifically examined. Nor were comparisons ma...n Immature Rainbow Trout (Oncorhynchus mykiss). It was conducted by Pavan K. Battiprolu, Adam C. Goddard and Kenneth J. Rodnick, all of the Department of B...

Machine preservation may promote more organ sharing

... preserved on a pump. The purpose of this study was to compare outcomes in kidney transplant patients ...m "expanded criteria" donors (ECDs). This category was created by UNOS in 2002 so that higher risk donor organs, once considered unsuitable, could be trans...

Madagascan tropical forests return thanks to better management and well-defined ownership

...f forests regenerating. The return of forest cover was found to be substantial in the study area, with an overall net increase of 4 % during the period 1993-2000. These dry forests have the highest level of plant endemism (species found only in a particular region) in all of Madagascar and are listed as ...

Does amateur boxing cause brain damage?

...er for neuronal damage, neurofilament light (NFL), was four times higher in boxers within 10 days of the ...boxing or head injury," said Hietala. The study was extended to soccer players heading the ball repeatedly from long and high goal kicks. No increased l...

'Personality-gene' makes songbirds curious

...at had been put in its cage. One such novel object was a pink panther (see figure 2). The results from the group of selected birds were confirmed with data from free-living, unselected great tits. In the forest-living birds, the scientists also found a significant association between the SNP830-genot...

Scripps research team sheds light on long-sought cold sensation gene

...ithstood the test of genetics," he says. TRPM8 was first discovered by Patapoutian’s group and propos...31°C, suggesting their ability to sense this range was completely disabled without the gene. Normal mice, on the other hand, found cold temperature unpleas...

Technique monitors thousands of molecules simultaneously

... a classic logistics problem ?the structure itself was simple, but getting the tools and manpower necessary for the task to the remote regions it was built in on the scale necessary was "a logistical nightmare." Getting 12,000 electrodes per square...

Protein enables discovery of quantum effect in photosynthesis

...about how chlorophylls interact with proteins. It was ideal for this study." Blankenship's colleague, Graham R. Fleming, Ph.D., Deputy Director of the U.S. Department of Energy's Lawrence Berkeley National Laboratory and professor of chemistry at the University of California, and colleagues used 2-D...

'Insulator' helps silence genes in dormant herpes virus

...nding in this manner, we believed the CTCF protein was interacting with other viral proteins to form a ty...virus structure," Zhou says. To verify that it was an insulator at work, the researchers then inserted copies of the structure into fruit fly embryos t...

How the brain's backup system compensates for stroke

...ments also established that this activity increase was functionally specific for the behaviors governed by the PMd and not simply a general increase in brain activity. The researchers also established that the activity increase in the right PMd caused the recovery of performance. When they also used m...

Gene malfunctions cause schizophrenia, depression symptoms in mice

..., and major depression. The researchers' theory was that different mutant variations of DISC1 might have different pathological effects. To test this theory, the researchers screened a large population of mouse mutants to isolate two with different mutations in DISC1. They found that, indeed, one o...

Peramivir protects mice from lethal H5N1 infection

...rain and spleen. The key to the high survival rate was treating the infected mice within 24 hours after i..." he said. Boltz is first author of a paper, which was presented April 30 at the 20th International Conference on Antiviral Research in Palm Springs, Calif...

Amphibians in losing race with environmental change

... has occurred too rapidly. In the past, water was reasonably pure and clean. But increased "eutrophication" of freshwater ponds due to use of modern fertilizers and waste from grazing animals has led to higher rates of parasite infections, and chemical contamination of aquatic systems is also more c...

Chronic fatigue syndrome impairs a person's slow wave activity during sleep

... regular night's sleep. According to Armitage, it was only after a "challenge" to sleep regulation was introduced (keeping them awake an extra four hours) that the CFS twins exhibited significantly less ...

Why do oysters choose to live where they could be eaten?

...ured versus landing on a suitable location to grow was conducted, it was found that more than 95 percent of an oyster reef is a safe zone for larvae. Given this low cannibal...

Scientists discover rare 'gene-for-gene' interaction that helps bacteria kill their host

...us bacteria. But when the two were combined, it was found that not being able to produce ST made no difference to Photorhabdus when colonising insects unable to produce phenoloxidase. "This is conclusive evidence for a gene-for-gene interaction between the bacterium and the insect," said Richard ff...

US control strategies may make flu epidemics worse, UCLA study shows

...ation that is infected. The individual-level model was based on the human biological attributes of memory and adaptability. "We assume that the decision of each individual is based upon self-interest, that people wish to avoid coming down with the flu, preferably without having to vaccinate," said Br...

Role of noise in neurons

...ssions down fibers of less than 0.5 ìm in diameter was unknown until this paper. Using detailed models of rodent and squid axons and stochastic simulations, the authors performed experiments, now published in PLoS Computational Biology, which took several months to simulate a few milliseconds of real ...

Master regulatory gene of epithelial stem cells identified

... into particular types of tissue. The study, which was lead by Frank McKeon, PhD, professor of cell biolo...king the p63 gene." Having established that p63 was only important to the maintenance of stem cells, McKeon and his research team then used the epitheli...

Nitric oxide: Key to cardiovascular and pulmonary function and drug effectiveness

...who first cloned these receptors in 1986. The link was cemented through a collaboration with Matt Foster, a post-doctoral fellow in the laboratory of Jonathan Stamler M.D. G-protein coupled receptors reside on the cell surface where they interact with all manner of stimuli, including circulating facto...

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