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Tag: "lowering" at biology news

Carnegie Mellon scientists find key HIV protein makes cell membranes bend more easily

...different viruses could enter cells by efficiently lowering the energy required to penetrate a cell’s outer membrane, according to Tristram-Nagle and her collaborator, John Nagle, professor of physics and biological sciences at Carnegie Mellon. The Carnegie Mellon scientists used X-rays to detect the effect ...

Hormone helps mice 'hibernate,' survive starvation

...own to have a range of beneficial effects, such as lowering blood pressure, cholesterol and glucose levels in the blood, Dr. Kliewer is interested in understanding how FGF21 impacts these processes. “We want to see if we can get some benefits of eating less without actually eating less,” he said. Manipu...

Newly discovered antibody may be body's natural defense against Alzheimer's

... against beta amyloid. "The effects of IVIG in lowering beta amyloid levels in Alzheimer's patients in our Phase I clinical trial were much more profound than we expected," Dr. Relkin explains. "We couldn't readily explain this based on the low levels of anti-amyloid antibodies known to be present in IVIG...

Could fungal collection hold the key to new life-saving drugs?

...sive agents, antibiotics such as penicillin, lipid lowering agents and anti-fungal drugs....

Researchers identify protein pathway involved in Parkinson disease development

... neurons in the brain that produce dopamine. This lowering of dopamine leads to decreased stimulation of the brain's motor cortex. Although scientists have not known the exact cause of the loss of these dopamine-producing neurons, they believe it is related to dysfunctional mitochondria and oxidative stress...

Hawaiian treasure, macadamia nuts good for the heart

...s, normal blood pressure and were not taking lipid lowering drugs. Researchers randomly assigned participants to either the macadamia nut diet or the standard American diet and provided all meals for the participants for five weeks. The participants then switched diets and continued eating only food provided ...

Statin treatment improves spatial memory in mouse models of Alzheimer's

...mvastatin, one of the statin drugs widely used for lowering cholesterol in humans, significantly improved spatial memory - how to navigate a water maze - in mice genetically bred to have an Alzheimer’s like disease. Although statin improved memory in both males and females, the results were more pronounced in...

8 plants from South Africa may hold potential for treating high blood pressure

...Tulbaghia violacea has shown properties related to lowering blood pressure. Since the number of hypertensive individuals around the world is on the rise, it is worthwhile to pursue further studies involving this extract. Yesterday's folk remedies may one day be just what the 21st century doctor orders. ...

Study shows continued success for new HPV vaccine against virus responsible for cervical cancer

...searchers believe the vaccine will be effective in lowering a girl's lifetime risk of cervical cancer. To that end Merck launched the national "One Less" campaign last year, which encourages females eligible for the vaccine to begin their vaccination series of three shots over six months and to continue seei...

Studies force new view on biology of flavonoids

... healthy and relaxed, preventing inflammation, and lowering blood pressure ?all key goals in prevention of heart disease. Both of these protective mechanisms could be long-lasting compared to antioxidants, which are more readily used up during their free radical scavenging activity and require constant rep...

Hotspots of mercury contamination identified in eastern North America

...me fish. There is reason to believe, however, that lowering emissions can reduce risk: an analysis of levels of mercury contamination over time in the Merrimack River watershed suggests that lowered emissions reduced mercury levels in biota within a few years. The 10-member research team was led by David C....

Smell may outlast other senses

...es with age.? Anticholesterol and blood pressure lowering medications were amongst the common drugs known to interfere with smell. Conditions such as Parkinson’s disease and Alzheimer’s disease were also associated with impairment in the sense of smell, she said. Dr Johnston said the ability to smell wa...

Link found between immune system and high plasma lipid levels

...to new ways to reduce the risk of heart disease by lowering elevated lipid levels. In the April 13, 2007, issue of Science, the research team—led by James C. Lo, an MD, PhD student, in the laboratory of Yang-Xin Fu, MD, PhD, professor of pathology at the University of Chicago—suggest that an engineered pro...

Climate change could trigger 'boom and bust' population cycles leading to extinction

... crash reduces the genetic diversity of a species, lowering its ability to adapt and making it more prone to extinction. ...

Eating less salt could prevent cardiovascular disease

...e of the strongest objective evidence to date that lowering the amount of salt in the diet reduces the long te...mised trial data. It provides unique evidence that lowering salt in the diet might prevent cardiovascular disease. ...

New cigarette designs don't offer lower predicted cancer risks

...l stores. "Dr. Pankow's study shows that simply lowering the levels of a few known harmful compounds from tobacco smoke may not significantly reduce the risks of smoking," she said. Pankow's group examined carcinogen deliveries from 26 brands of conventional "regular," "light" and "ultralight" cigarette...

Knocking out survival protein could aid leukemia treatment

...titute. "These results give us a rationale for lowering the amount of this protein in CLL cells and suggest that this should enhance the action of rituximab and perhaps other agents as well." Rituximab is an antibody-based drug that targets CLL and ALL cells and causes the cells to self-destruct. ...

Bumblebee house warming -- it takes a village

... removing their most active incubating workers and lowering the nest temperature. One group of bees was consi...rely on nest thermoregulation, actively raising or lowering temperature. Because they are well adapted to cooler and temperate climates, bumblebees are importa...

Scientists unravel clue in cortisol production

...al. But the hormone's effects are many and varied, lowering the activity of the immune system, helping create memories with short-term exposure, while impairing learning if there's too much for too long. Given the variety of its effects,understanding how cortisol is made is essential to producing medications ...

MIT: Pulsing light silences overactive neurons

...pumps, which drive chloride ions into the neurons, lowering their voltage and silencing their firing. That inhibitory effect may be extremely useful in dealing with diseases caused by out-of-control neuron firing, said Boyden. "In such diseases, inhibition is more direct than excitation, because you can sh...

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