Tag: "decreasing" at biology news

Sneaky sex causes fish pest

...e habits will help explain how to take measures in decreasing their population....

Joslin-chaired study shows new compound may decrease vision loss in diabetes

...normal activation of PKC is an important factor in decreasing blood flow to the retina. These seminal discoveries established the link between hyperglycemia, PKC and diabetic eye disease. Having established this link, Dr. King began working with scientists at Eli Lilly to design a chemical inhibitor for the PKC...

Fundamental discovery -- bone fracture

...is. Bone fracture is one of the leading factors in decreasing quality of life for the elderly. "Cancer and heart disease can kill you but bone fracture and arthritis make you miserable," he said. "Once a serious bone fracture occurs, then quality of life goes down. Less than one-third of elderly women who have ...

Blink, and the brain misses it

...ientists discovered that visual sensitivity begins decreasing immediately before a blink, but the brain mechanisms underlying this process have until now remained unclear. As they report this week, Davina Bristow and a team of scientists at University College London led by Dr. Geraint Rees may now have found a ...

UNC scientists discover new role for protein as fundamental inhibitor of cell movement

... a likely target for new drug development aimed at decreasing tumor metastasis, or spread, throughout the body. "I was ecstatic to see these results and to discover that it also regulates the fundamental process of cell migration," said Dr. Tina Leisner, associate professor of pharmacology at UNC and the stud...

Changes in technique can reduce radiation dose in CT examination

...ed. In these cases we suggest that sites consider decreasing their X-ray tube voltage and current so that the relative radiation exposure from the survey scan is as low as possible, while maintaining a good enough image," she said. "Default settings on CT scanners vary, and even though the survey scan mak...

USGS Science at Ecological Society of America

...s consider it an invasive species one that may be decreasing the quality of wildlife habitat and altering the function of wetlands. Volunteers around the world are collecting data on seed production, height, and environment to determine how environmental factors limit this species on various continents and to ...

JCI table of contents September 1, 2005

...ve insulin levels can induce insulin resistance by decreasing levels of insulin receptor substrate (IRS) proteins. However, the mechanism(s) underlying the destruction of IRS proteins and subsequent resistance to insulin have not been well defined. Proteins of the SOCS family have been implicated in the negati...

Insulin sensitivity gets a kick out of SOCS-7

...ve insulin levels can induce insulin resistance by decreasing levels of insulin receptor substrate (IRS) proteins. However, the mechanism(s) underlying the destruction of IRS proteins and subsequent resistance to insulin have not been well defined. Proteins of the SOCS family have been implicated in the negati...

Other highlights in the September 7 JNCI

... factor 1 alpha and heat shock protein 90 and thus decreasing hypoxia-inducible factor 1 alpha expression. The authors conclude that their results provide a new rationale for the use of farnesyltransferase inhibitors as inhibitors of tumor angiogenesis in aerodigestive cancer. Contact: Laura Sussman, Communica...

Old drug shows new promise for Huntington's Disease

...o results suggest that Clioquinol has an effect of decreasing the symptoms of Huntington's, its pathology, and perhaps even the actual production of the toxic protein." However, he noted, "the drug's mechanism of action remains unclear." The clearer the mechanism of the drug, he explained, the better the chance...

Water management in cells

... Increasing the salt concentration in the cell or decreasing the salt concentration around the cell leads to an influx of water. This principle is known as osmosis. Cells activate various channels to remove excess water and salt or osmotically active particles from the cell. Tomassen studied cells that are hi...

Sugar helps control cell division

...ntrast, our experiments show that by increasing or decreasing the amount of sugar attached to proteins, the cell cycle is disrupted and isn't salvageable unless O-GlcNAc levels are fixed." In experiments with human cells and mouse cells, Slawson and his colleagues showed that preventing a cell from removing the...

Engineered molecule amplifies body's immune response

...low for much lower doses of interferon to be used, decreasing cost and side effect profile. In terms of diagnosis, it may be possible to screen patients for the level of Stat1 responsiveness to interferon, and if found to be low, that would make them candidates for a strategy to improve Stat1 responsiveness usi...

JCI table of contents November, 2005

...g the binding of pCREB to the IL-2 promoter and by decreasing pCREB binding to the c-fos promoter which results in decreased formation of AP-1 and decreased binding to the IL-2 promoter. Thus, correction of IL-2 production in SLE T cells treated with PP2A-siRNA, as demonstrated in this study, may be useful in ...

Researchers find gland that tells fruit flies when to stop growing

...izes than usual. Suppressing the gland's growth by decreasing insulin signaling allowed larvae to grow larger than usual before entering the pupal stage that precedes adulthood. Mirth and her colleagues, UW biology professors Lynn Riddiford and James Truman, surmised that size assessment had to be accomplished...

California's oak woodlands face a new threat: Climate change

...tributable primarily to increasing temperature and decreasing rainfall during the growing season, Kueppers said. "If this scenario is what we can expect with climate change, then these oak woodlands are going to have to adapt pretty dramatically to new conditions or move significant distances in a relatively sh...

Central Americans save plant diversity through local cultivations

...n shown to be part of the solution to the issue of decreasing genetic diversity in our world rather than part of the problem. Global genetic diversity is being eradicated through any number of human-driven activities, the removal of large scale forests key among them. Now Researchers at Washington Universi...

Sweet snacks could be best medicine for stress

...ill be to determine how these sweetened drinks are decreasing glucocorticoid production. "We need to find out if there are certain parts of the brain that control the response to stress, then determine if the function of these brain regions are changed by sugar snacking," he said....

Tips from the journals of the American Society for Microbiology

...al activity, protecting mice against mortality and decreasing viral replication in multiple organs. "We show that expression of ISG15 in INF-/R mice attenuates Sindbis virus infection, providing in vivo evidence that ISG15 can function as an antiviral molecule," say the researchers. (D.J. Lenschow, N.V. Giannak...

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