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Tag: "least" at biology news

New study finds chocolate chip cookies lower cholesterol

...ol. The American Heart Association estimates at least 50 percent of the American adult population has high cholesterol. The study revealed eating two Right Direction Cookies daily showed a ten percent decrease in LDL cholesterol as well as shifting the LDL particles toward a less atherogenic pattern. ...

Gene therapy inhibits epilepsy in animals

...rizes a seizure. Seizures are thought to occur, at least in part, because of an imbalance between two types of neurotransmitters: the glutamate system, which stimulates neurons to fire, and the GABA system, which inhibits that brain activity. GABA's inhibitory role is considered particularly important in...

Pooled data examines if SNPs add to breast cancer risk

...ps identified 16 SNPs that had been analyzed by at least three of their studies. They pooled data from all studies for each SNP and assessed how frequently the genetic change occurred in breast cancer patients compared to controls. The authors found that five of the SNPs might be linked to breast cancer ...

Road-crossing in chimpanzees: A risky business

...on an evolutionarily old principle--shared with at least some other primates--of protective "socio-spatial" organization that produces flexible, adaptive, and cooperative responses by a group of individuals facing risk. The research is reported by Kimberley Hockings and James Anderson of the University of ...

HIV-1 kills immune cells in the gut that may never bounce back

...s also found evidence suggesting that there are at least two more ways in which the cells were being killed off. Some of the T cells self-destruct (a process called activation-induced cell death or apoptosis), while some appear to be killed by other cytotoxic immune cells. "These papers speak strongly ...

PET imaging shows young smokers quick benefit of quitting

...rage of 20 cigarettes a day, agreed to stop for at least six months. Myocardial (heart) blood flow was measured both at rest and during stimulation induced by a cold pressor test by using PET with the oxygen tracer called 15O-water. Additional research is necessary, said Tamaki. "We would like to compare t...

To slow AIDS in Russia, treat HIV-positive addicts, Stanford study says

...g non-drug users is not a wise approach. It's the least efficient and it's the least effective," said Long. According to the model, treating only HIV-infected drug users will prevent...

Origin of inherited pain disorder pinpointed

...ons in SCN9A are responsible for the disease in at least two-thirds of PEPD cases. Analysis of these mutations revealed that they all disrupted the ability of the sodium channel to rapidly snap shut, prolonging activation of the peripheral nerves in which the channels functioned. What's more, the researc...

LSD treatment for alcoholism gets new look

...coholics in the experiment stopped drinking for at least a year-and-a-half (the duration of the study) after taking one dose of LSD. The controlled trial also concluded that less than 25 per cent of alcoholics quit drinking for the same period after receiving group therapy, and less than 12 per cent quit i...

Clue found to Epstein-Barr virus' ability to form and sustain tumors

...n annually. It is also causally associated with at least four other kinds of human cancers, including Hodgkin's lymphomas, lymphomas in AIDS patients and organ transplant recipients as well as nasopharyngeal carcinomas. The SMPH researchers, based at the McArdle Laboratory for Cancer Research, focused on ...

Reef warns of sea level rise

...rvive and grow, sea levels would have had to be at least 3 to 4 metres higher than at present. "There is some evidence ?still controversial ?that sea levels may briefly have been as much as 6 metres higher." The coastline of WA, being geologically stable, has a number of both living and fossil coral re...

Train your brain to hear your friends at a party

...ut, if you have some form of hearing problem in at least one ear, this ability is disrupted and the brain struggles to tell one sound from another. The key to understanding this ability lies in the brain. Scientists are currently trying to work out exactly what part of the brain is responsible and how i...

Engineered yeast speeds ethanol production

...nding protein, it caused the over-expression of at least a dozen genes, all of which were found to be necessary to elicit an improved ethanol tolerance. As a result, that strain of yeast was able to survive high ethanol concentrations. In addition, this altered strain produced 50 percent more ethanol du...

One signal elicits thousands of answers

... scientists with widely varying expertise, not the least for tumour researchers because they have to investigate defects in cellular signaling which often occurs in progressed forms of cancer. The new technology will allow the search for new data - which might not be necessary too soon. "Our study revealed...

Sea urchin genome suprisingly similar to man and may hold key to cures

...ingle-cell layered gut of the sea urchin larva, at least 14 proteins binding the DNA at 50 sites are needed, Calestani said. "Multiply that hundreds of times and you begin to understand the level of complexity involved in human development," she added. Using a "simple" creature like the sea urchin em...

Stroke symptoms common among general population

...who have no history of stroke report having had at least one symptom of stroke, according to results of a l...roke symptoms. "The last finding suggests that at least some of these symptoms may represent stroke events that did not reach the threshold required for cli...

Rescuing injured hearts by enhancing regeneration

...o had reduced thinning of the cardiac wall and the least amount of scarring. Rats receiving only the p38 MAP kinase inhibitor had increased proliferation of cardiomyocytes, but no longer had improved heart function at three months. Those receiving only FGF1 maintained their functional improvement, but d...

Carnegie Mellon scientists use 'green' approach to transform plastics manufacturing

...atalyst used in ATRP, we have made this process at least 100 times more efficient and much more amenable to industrial processes," said Krzysztof Matyjaszewski, J.C. Warner Professor of Natural Sciences and director of the Center for Macromolecular Engineering in the Mellon College of Science at Carnegie M...

MIT material stops bleeding in seconds

...ducing blood clotting. Clotting generally takes at least 90 seconds to start, and the researchers found no platelet aggregation, a telltale sign of clotting. Other MIT researchers who are co-authors on the paper are Gerald Schneider, professor of brain and cognitive sciences, and Shuguang Zhang, associa...

Finding an answer to Darwin's Dilemma

...ce for a huge increase in atmospheric oxygen to at least 15 per cent of modern levels, and these sediments also contain evidence of the oldest large animal fossils." Also on the research team are Don Canfield (University of Southern Denmark) and Simon Poulton (Newcastle University, U.K.). Geochemical st...

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