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Tag: "losing" at biology news

Eat less, weigh more? Enzyme makes lean mice 'susceptible' to dietary fat

... is out of whack, so are the rules for gaining and losing weight. "How do you know when to stop eating?" asks M. Daniel Lane, Ph.D., senior author of the study and a professor of biological chemistry in the Institute for Basic Biomedical Sciences at Hopkins. "The liver sure isn't going to tell you, it just...

Fragmentation rapidly erodes Amazonian biodiversity

...Tree communities in fragments are highly unstable, losing and gaining 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-...

Disappearing nest egg: Researcher studying declining numbers of macaws

...hly prized by the pet trade industry, and they are losing their native habitat due to construction and other factors. Also, some South American natives seek them out either for food or to kill them for their bright feathers. Brightsmith has conducted several detailed studies on the birds, which technical...

For super-obese patients, duodenal switch beats gastric bypass

...ve and maintain successful weight loss--defined as losing more than half of their excess weight--at one year...ght loss we need to get those health benefits, but losing more of the excess weight certainly seems to be better." ...

Brains can recover from alcoholic damage but patients should stop drinking as soon as possible

...he longer you drink excessively, the more you risk losing this capacity for regeneration. Therefore, alcoholics must not put off the time when they decide to seek help and stop drinking; the sooner they do it, the better." Dr Bartsch, who is senior neuroradiology resident and head of the structural and f...

Human stem cells delay start of Lou Gehrig's disease in rats

...verage, rats injected with live stem cells started losing weight at 59 days and lived for 86 days after inje...control rats injected with dead stem cells started losing weight at 52 days and lived for 75 days after injection. The rats were coaxed to crawl uphill on...

Embryonic stem cells do better on bumpy nanoscale mattress

...have the potential to divide indefinitely, without losing their pluripotent properties. But until now, HES cell cultures had a tendency to spontaneously differentiate, that is, to veer off without warning into a developmental pathway. HES cell cultures have to be closely watched to remove any of these spo...

Does missing gene point to nocturnal existence for early mammals?

... gene, for instance. We also want to find out what losing one of these genes means for humans."...

Stem cells found in adult hair follicles may provide alternative to embryonic stem cells

...expanded in culture into millions of cells without losing stem cell markers. "We grafted the cells into mice that have spinal cord injuries and were encouraged by the results. The cells survived and integrated into the spinal cord, remaining at the site of transplantation and not forming tumors," Dr. Sie...

Fast-freeze snapshot yields new picture of nerve-muscle junction

...n and actually physically view the consequences of losing these proteins," said Richmond. The conventional technique is to use gluteraldhyde fixation, which takes seconds or minutes to complete -- unlike the fraction of a second when using the high-pressure freeze method. What's more, during gluteraldhyde ...

New drug blocks influenza, including bird flu virus

...ic is heightened and available antiviral drugs are losing their potency. "This gives us another tool," say...he senior author of the new report. "We're quickly losing our antivirals." The new drug, which was tested on cells in culture and in mice, conferred complet...

New gene linked to bipolar disorder

...elated mood disorders. Signs of depression include losing weight, feeling totally negative about oneself, feel hopeless about the future and sometimes ending up in a depressive stupor in bed, unable to move, eat, drink or talk. People with bipolar disorder may also experience extreme mood highs, overactivit...

Underweight women at greater risk of miscarriage

...ing to help women who want to reduce their risk of losing a baby in pregnancy'. ...

German researchers develop first non-invasive test to measure skin aging

...ce appeared to be sex-dependent, with women's skin losing collagen at faster rates than men's. The two methods combined in the imaging technique use the ability of ultra-brief pulses of laser infrared light to stimulate tissues to emit light at shorter wavelengths -- blue in the case of collagen, and gre...

By 2048 all current fish, seafood species projected to collapse

...o determined that the problem is much greater than losing a key source of food. Damage to the oceans impact not only fisheries, but the ocean ecosystem's overall productivity and stability. Specific services that have declined involve the maintenance of water quality by biological filtering, the provision o...

UCLA: How does your brain respond when you think about gambling or taking risks?

... brains evaluate the possibility of gaining versus losing when making risky decisions. Participants in the ...ad a 50-50 chance of winning an amount of money or losing another amount of money. Would they, for example, agree to a coin toss in which they could win $30 b...

Severe mental retardation gene mutation identified

...ardation as being mutated to the point of entirely losing function. "ZDHHC9 is a novel gene," explains Dr. Raymond. "This gene would not have been predicted to play a role in mental retardation based on the previous genetics work. It was found only because we were systematically looking at all the genes...

Cellulosic ethanol: Fuel of the future?

... I know. For example, in British Columbia they are losing each year forests the size of Rhode Island because of beetle infestation, because it is not cold enough in the winter to kill the beetles, and they are killing the forest.'' Achievable goals The president's target of 35 billion gallons of alt...

Custom-made cancer cell attacks

... I know. For example, in British Columbia they are losing each year forests the size of Rhode Island because of beetle infestation, because it is not cold enough in the winter to kill the beetles, and they are killing the forest.'' Achievable goals The president's target of 35 billion gallons of alt...

Producing medicines in plant seeds

...t. The seeds can be stored for a long time without losing the produced protein's effectiveness, so that a reserve can always be kept on hand. This means that the proteins can be isolated from the seeds at the moment that they are actually needed. With production in leaves, for example - or with conventional...

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