Scientists identify molecular cause for one form of deafness
..., they point roughly along the same direction but lose their positional order. These nematic liquid crystals are commonly used in watch displays and laptop displays. Wong and his colleagues also found that a mixture of mutant espin and normal espin would prevent the structural transition from occurring. ...Weight-loss supplement shows good and bad traits
...ark of Type 2 diabetes. Yet CLA didn't help rats lose weight they had gained prior to taking the supplem...without CLA. The supplement didn't help the rats lose weight. But it seemed to keep fat from accumulating in the animals' livers, compared to the rats eat...Major link in brain-obesity puzzle found
... diabetic, and unable to stop eating. Their bodies lose the ability to sense the signals sent by leptin an... treated to make extra SH2B1 didnt become obese or lose their ability to respond to leptin signals even after being fed a high-fat diet that caused those ef...Fungal factories may save hemlock forests
...on, and commercial forest owners have something to lose with the demise of the hemlock. But far more important, as the hemlocks expire they take an ecosystem down as they fall. In cool hollows and along shady mountain streams the hemlock has grown for millennia where other trees wouldn't thrive: a quie...Fish can determine their social rank by observation alone, study finds
...ccess to food and mates. "Males that repeatedly lose fights are unable to hold territories and consequently descend in social status," the authors wrote. "Success in aggressive bouts is therefore crucial to male reproductive fitness, and the ability to infer the relative strength of rivals before engag...Researchers discover genetic cause for word-finding disease
.... In PPA, a little known form of dementia, people lose the ability to express themselves and understand s...nces together," Mesulam said. Alzheimer's patients lose interest in their hobbies, family life and just sit doing nothing, he noted. As PPA progresses over...Genetic variation may reduce Alzheimer's risk
...oodstream. Free hemoglobin is toxic; it can easily lose its iron group, causing cell-damaging oxidative stress. Now it appears freed hemoglobin may also bind to beta amyloid, which may enhance that protein's ability to wreak havoc in the brain. Red blood cells break down every day and the body has molec...Scientists discover how body fights to control spread of cancer
...breast, lung and colorectal cancer, infected cells lose growth control and eventually form tumours at these sites. If caught early these tumours can be effectively removed surgically. However, when the cancer cells have invaded the blood, the effectiveness of surgery is reduced. Cancerous cells that ha...Two studies: Speeding development of novel tracer for prostate cancer
..."It is not unusual that the results of experiments lose touch with the results of clinical study; however, this time, the results of our basic studies correlated well with Dr. Schuster's findings in patients with prostate cancer," said Oka. "This is good news for development of our compounds," he added, i...Experience sculpts brain circuitry to build resiliency to stress
...gov/healthinformation/ptsdmenu.cfm ) in which they lose the ability to learn how to escape stressors and behave more fearfully. Maier's research team had last year reported that the prefrontal cortex ( http://www.nimh.nih.gov/press/ratstress.cfm ) quelled the brainstem center's alarmist tendencies. The...Too mellow for our predatory world
... longer evolutionary period, birds for example can lose their ability to fly. This would greatly reduce their ability to escape should new predators appear. In contrast to such "hard wired" traits, however, behavioural patterns should be significantly more flexible. In programmes introducing tame species ...Run amok enzyme causes same problems in both humans and fruit flies
...re delivered into the young neurons and they never lose their stem-cell nature. This leads to a stem-cell tumor in the fly brain." The team's findings appear to reverse traditional thinking that too much activation of aurora-A leads to tumors, including those in more than half of colorectal cancers. Inst......rs living in one of Indias best-run national parks lose nearly a quarter of their population each year from poaching and natural mortality, yet their numbers remain stable due to a combination of high reproductive rates and abundant prey. The study, which appears in the journal Ecology, underscores the n...Newts which regrow their hearts
...When a newt’s heart sustains damage, its cells can lose their characteristic properties; they can dedifferentiate. The researchers were able to show that proteins typical of heart muscle cells - the heavy myosin chain and various troponins - were dramatically down-regulated in this process. At the same ti...CU-Boulder space station experiments to involve K-12 students around the globe
... translucent worms on orbit. "If these nematodes lose muscle mass like astronauts lose muscle mass during space flight, the students should be able to see it in their daily behavior," Sto...Why do males and females of some species look so different?
... "then it seems to have been easier for females to lose their horns by evolving a way to 'ungrow' them, rather than not growing them in the first place. This is yet another example of the quirky paths that evolution has taken to generate the diversity of biological shapes and forms around us."...Vanishing beetle horns have surprise function
... "The formation of horns by beetle pupas that soon lose them just doesn't seem to make sense, so obviously we were intrigued," said IU Bloomington evolutionary biologist Armin Moczek, lead author of both papers. "It appears these pre-adult horns are not a vestigial type of structure, which many of us thou...HIV-1 kills immune cells in the gut that may never bounce back
...ane of a patient's gastrointestinal (GI) tract can lose up to 60 percent of its CD4 memory T cells -- immune cells responsible for recognizing invaders and priming other cells for attack. Intrigued, Martin Markowitz, an Aaron Diamond Professor at Rockefeller University and a staff scientist at ADARC, want...Parental genes do what's best for baby
...en the second copy can compensate; imprinted genes lose this safeguard and so are more susceptible to disease. Errors in imprinting have also been linked to cancer and other genetic disorders. Scientists have argued that the reason some genes only use or express one copy is due to a conflict between pat......ng species at a high rate. Fragments also tend to lose many of their large trees and become dominated by small, fast-growing species. Forest fragmentation may even increase global warming. The authors demonstrate that the small, fast-growing trees that proliferate in fragments contain less biomass, ...