Tag: "buildup" at biology news

Longevity gene also protects memory, cognitive function

...lves in blood vessel linings, leading to the fatty buildup that can cause heart attacks and strokes. The study examined 158 people of Ashkenazi, or Eastern European, Jewish descent, who were 95 years old or older. Those who had the gene variant were twice as likely to have good brain function compared to ...

Study identifies glucose 'sensor' that plays dual role in glucose metabolism and fat synthesis

...odstream. Since LXR acts as the body's sensor of a buildup of pathogenic cholesterol, its ability to bind both glucose and oxysterols suggests that LXR may be a link between hyperglycemia and atherosclerosis." In fact, Saez and his colleagues originally looked at LXR as a drug target for atherosclerosis. B...

JCI table of contents: January 2, 2007

...oblems, including heart attacks. It is caused by a buildup of fat (lipid)-containing macrophages (the rubbish-collecting cells of the immune system) in the arteries. The presence in the blood of high levels of remnant lipoproteins, cholesterol-rich particles that are produced as the large lipoprotein complex...

USGS examines environmental impacts of aircraft de-icers

...rmulations used to remove or prevent dangerous ice buildup on aircraft. A recent study has confirmed that pr...some de-icers -- products that remove snow and ice buildup that are currently in use are safer for the environment than the de-icers used in the 1990's," said...

Getting one's protein in a bunch -- When quality control fails in cells

...l produces more mutations than it can handle. That buildup can overwhelm the cell's ability to eliminate thes...nts." Left unchecked, these errors result in the buildup of faulty proteins within the cell. This buildup happens during translation, a process that cells us...

Sentry enzyme blocks two paths to Parkinson's disease

...venting cell death that may occur with the natural buildup of free radicals," Smeyne said. Finally, the investigators studied the effect of MPTP on the substantia nigra of normal, "wild-type" mice and mice that lacked one (+/-) or both (-/-) genes for GST pi. Wild-type and GST pi (+/-) mice showed similar...

Power-boosting signal in muscle declines with age

... in their seventies show a higher incidence of fat buildup in their muscle and livers and a deficiency in mitochondrial function, Shulman explained. These metabolic shifts have been implicated in the increased prevalence of insulin resistance and type 2 diabetes that occurs with aging. "The message of this...

Climos chief science officer to speak at NJIT about greenhouse gases

...ersey Institute of Technology (NJIT) next week the buildup of atmospheric greenhouse gases over just two centuries. Leinen believes that this change has impacted the Earths climate and ecosystems, and that changes cannot be modeled without including fossil-fuel emissions. Leinens talk will also examine the ...

Protein sensor for fatty acid buildup in mitochondria

...detectors, cells have an enzyme that responds to a buildup of fatty acids by triggering the production of a k...y binds tightly to PanK2, shutting it down. When a buildup of fatty acids occurs in the cell, a molecule called carnitine shuttles them into the mitochondria. ...

Carbon dioxide and the ocean

VIRGINIA KEY, FLA. (February 28, 2007) -- The buildup of greenhouse gases in Earths atmosphere and oceans continues to provoke changes in the natural environment that scientists have been working to measure for decades. Global increases in temperature are just one facet of a much larger issue that scien...

Story tips from the Department of Energy's Oak Ridge National Laboratory, March 2007

...o the mineral soil, where it can contribute to the buildup of carbon stocks. The research, funded by the Department of Energy's Office of Science, provides another step toward predicting the fate of terrestrial carbon. [Contact: Ron Walli, (865) 576-0226; wallira@ornl.gov ] GENOMICS -- Decoding data . . ...

ACS News Service Weekly PressPac -- April 25, 2007

...CO 2 would hardly put a dent in the emissions and buildup of this greenhouse gas, however. Since global CO 2 emissions (mainly from coal-fired electric power plants) total an estimated 24 billion tons, technology for capturing and storing the gas still are essential in a battle against global warming, the...

Assumption of function not always correct

...nd human Werner syndrome enzymes helps prevent the buildup of unwanted intermediates of aggregated chromosome... When that protein is lacking, the intermediates buildup and the cells die. However, while many people think all such proteins work similarly in repair, rece...

Urbanization favors sedentary males

...nd that the birds exhibited migratory traits - fat buildup and more nocturnal activity, during periods in the spring and fall. While they found little difference between forest and urban females, urban males were less likely to show a desire to migrate (migratory disposition). Furthermore, those individuals ...

2007 Joint Assembly in Acapulco -- press conference schedule

....S. streams, and new understanding of radionuclide buildup in acquifers. Participants Ron Fuge: Senior Research Associate, Institute of Geography and Earth Sciences, University of Wales, Aberystwyth, U.K.; Avner Vengosh: Associate Professor, Division of Earth and Ocean Sciences, Duke University, Durh...

Fusing imaging technologies creates 'synergy,' helps diagnose heart disease accurately

...said Slomka. The arteries harden and narrow due to buildup of a material called plaque on their inner walls. Over time, blood flow to the heart muscle is reduced, and, because blood carries much-needed oxygen, the heart muscle is not able to receive the amount of oxygen it needs. "The fusion can be used se...

Combining molecular imaging technologies to stop/prevent heart attacks

...tack or stroke," he noted. The slow, progressive buildup of fats, cholesterol and other substancescalled plaqueon the inner lining of arteries causes atherosclerosis, which can lead to heart disease. Plaques can narrow the heart's arteries, allowing less blood to flow to the heart muscle (causing angina), ...

3-D fusion: A better way to image heart disease

...ned Santana. The arteries harden and narrow due to buildup of a material called plaque on their inner walls. As the plaque increases in size, the insides of the coronary arteries get narrower and less blood can flow through them. Over time, blood flow to the heart muscle is reduced, and, because blood carrie...

UCF nanoparticle offers promise for treating glaucoma

...loss. High pressure occurs, in part, because of a buildup of carbon dioxide inside the eye, and the compound blocks the enzyme that produces carbon dioxide. Seal and a team of collaborators including Sanku Mallik, of North Dakota State University, developed the research on using nanoparticles as a deliver...

New blood test might offer early warning of deep belly fat

... Cell Metabolism, a publication of Cell Press. The buildup of such visceral fat is of particular health concern as it has been linked to insulin resistance, type 2 diabetes, and heart disease risk. The researchers, including Barbara Kahn and Timothy Graham of Harvard Medical School and Matthias Blher of th...

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(Date:8/29/2014)... of the Tibetan plateau -- the largest topographic anomaly ... both its profound effect on climate and its reflection ... GSA Bulletin , Katharine Huntington and colleagues employ a ... modern and fossil snail shells to investigate the uplift ... , Views range widely on the timing of surface ...
(Date:8/28/2014)... of bacterial culprits that may drive inflammatory bowel diseases ... patients, own intestinal immune responses as a guide. , ... Cell . , Trillions of bacteria exist within ... in the development and progression of IBD. Yet it,s ... affect a person,s susceptibility to IBD and its potential ...
(Date:8/28/2014)... E-cigarettes are healthier for your neighbors than traditional ... according to a new study from USC. , ... overall 10-fold decrease in exposure to harmful particles, ... of exposure to some harmful metals in second-hand ... , While tobacco smoke contains high levels of ...
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