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Buildup in Biological News

Nontoxic hull coating resists barnacles, may save ship owners millions

... coating for use on ship hulls that resisted buildup of troublesome barnacles during 18 months of ... the same chemical composition showed barnacle buildup after just one month in seawater. Engineers ... with the windows open," Genzer said. Barnacle buildup also forces owners to remove ships from the water ...

Non-toxic hull coating resists barnacles, may save ship owners millions

... coating for use on ship hulls that resisted buildup of troublesome barnacles during 18 months of ... the same chemical composition showed barnacle buildup after just one month in seawater. Engineers ... with the windows open," Genzer said. Barnacle buildup also forces owners to remove ships from the water ...

In scientific first, Einstein researchers correct decline in organ function associated with old age

... at getting rid of damaged protein resulting in a buildup of toxic material that is especially pronounced ... continue debating whether this protein buildup actually contributes to the functional losses of ... efficient as cells become older, resulting in a buildup of undigested proteins within the cells. She also ...

Trans fats hinder multiple steps in blood flow regulation pathways

... sudden blood clots in the coronary arteries, and atherosclerosis, the buildup of plaque in the arteries to the point where it interferes with blood ... of plaques," Kummerow said. "They look corrugated, and this plaque buildup continues to the point where it will stop blood flow." Trans fats ...

Keeping golf courses green when fresh water is limited

... ponds and water features, related damage to equipment, long-term salt buildup in soil, and increased levels of turfgrass stress. To address these and ... during the monitoring period. The researchers reported on the salt buildup in soil samples and plant response associated with the irrigation of golf ...

Orchid Cellmark Reports Third Quarter 2008 Financial Results

... the DNA testing volumes related to the loss of former LGC business and the buildup of casework management capabilities in the U.K. to service the business ... rate, the timing of sample receipts in the U.S., and the continuing buildup of casework management capabilities in the U.K. will influence revenue and ...

New mechanical insights into wound healing and scar tissue formation

... will heal a wound quickly, if left unchecked, it can also lead to a buildup of fibrous tissue. Following trauma to vital organs such as the heart, ... fibroblasts can continue to build fibrous strands, leading to scar tissue buildup that can impair the organ's function. This condition, called "fibrosis", ...

MIT links gene to cholesterol

... on a gene called SIRT1, which the researchers found prevents cholesterol buildup by activating a cellular pathway that expels cholesterol from the body via ... study, researchers found that low SIRT1 levels in mice lead to cholesterol buildup in cells such as macrophages, a type of immune cell, due to reduced ...

Alzheimer's disease drug treats traumatic brain injury, report GUMC researchers

... is also known that people who experience such a brain injury have a 400 percent increased risk of developing Alzheimer's disease. Burns says that buildup of beta amyloid occurs in a second wave of damage that follows immediate "necrotic" death of nerve cells after traumatic brain injury. This secondary ...

Brain malformations significantly associated with preterm birth, Wake Forest research shows

... possibly offer some clue to the association. Among the malformations studied with the highest rates of preterm birth were hydrocephaly, an abnormal buildup of cerebrospinal fluid (CSF) in the ventricles of the brain (65.2 percent); anencephaly, a defect in the closure of the neural tube during fetal ...

Leading scientists and scholars urge action on climate issues

... In part, the letter reads, "In many political circles around the world, the view has taken hold that nations should endeavor both to limit the buildup of carbon dioxide, the principal greenhouse gas and a by-product of burning coal, oil and natural gas, to 450 parts per million and to limit the rise ...

Rising acidity levels could trigger shellfish revenue declines, job losses

... CO 2 levels in the atmosphere by almost 40 percent. The oceans have absorbed about one-third of all human-generated carbon emissions, but the buildup of CO 2 in the ocean is pushing surface waters toward more acidic conditions. This "ocean acidification" creates a corrosive environment for ...

NASA study says climate adds fuel to Asian wildfire emissions

... the region has been hit by two major dry spells and a steady upswing in fires, threatening biodiversity and air quality and contributing to the buildup of CO2 in the atmosphere. As more CO2 is emitted, the global atmosphere traps more heat near Earth's surface, leading to more drying and more fires. ...

Computational model examines the pathways of Alzheimer's that strikes at the young

... be predicative of the development of the disease. The main hypothesis that the model tested was the idea that GSK3 is a link between amyloid beta buildup and tau tangle development. Brain Plaque: A Major Instigator? The proteins presenilin-1 (PS1) (a mutated gene found in familial AD) and ...

Computational model examines the pathways of Alzheimer's that strikes at the young

... be predicative of the development of the disease. The main hypothesis that the model tested was the idea that GSK3 is a link between amyloid beta buildup and tau tangle development. Brain Plaque: A Major Instigator? The proteins presenilin-1 (PS1) (a mutated gene found in familial AD) and ...

Promising 3-year data: Saving limbs with drug-eluting stents

... are imminent at this advanced stage of PAD, which is caused by atherosclerosis, the hardening and narrowing of the arteries over time due to the buildup of fatty deposits called plaque. "Multicenter randomized trials are necessary to support these promising results and build on the level of ...

Forget the antioxidants? McGill researchers cast doubt on role of free radicals in aging

... theory into question. Their results show that some organisms actually live longer when their ability to clean themselves of this toxic molecule buildup is partially disabled. Collectively, these molecules are known as reactive oxygen species, or ROS for short. Dr. Siegfried Hekimi of McGill's ...

Study: Fluid buildup in lungs is part of the damage done by the flu

... the virus, but this research suggests that it's not the presence of the virus alone that does all the harm to a sick person. Instead, the fluid buildup deep inside the lungs might help kill a person infected with the flu, according to the research, which was conducted in mice. "My take is that ...

International study identifies gene variants associated with early heart attack

... attack risk were identified for the first time; and one of the novel regions also had been found, in a separate study by O'Donnell, to promote the buildup of atherosclerotic plaque in the coronary arteries. To analyze the effect of inheriting several risk-associated SNPs, participants were assigned a ...

Athletes not spared from health risks of metabolic syndrome

... excess fat in the abdominal area (as measured by waist circumference), borderline or high blood pressure, cholesterol problems that foster plaque buildup in arteries, insulin resistance or glucose intolerance indicating the body can't properly use insulin or blood sugar, and the presence of a protein ...

Master gene plays key role in blood sugar levels

... SRC-2 is critical to that removal process. If the sugar cannot leave the liver, it remains there in the form of glycogen. Eventually, the buildup of this storage form of sugar can cause the liver to fail. "It's one of the few examples of a metabolic genetic disease that can be created by a ...

Conference to explore sustainability of biofuels

... energy consumption can be brought back into the natural cycle, with carbon being continuously released and recaptured by current plant growth. The buildup of carbon dioxide in the atmosphere that is a result of fossil fuel use has been implicated in global warming. In some Central and South American ...

Earthworm activity can alter forests' carbon-carrying capabilities

... decompose the carbon remains. After earthworms feed on forest litter, they take the carbon down into the soil and mix it in, potentially leading to a buildup of carbon in the soil. "If the litter just stays on the surface of the soil, then it's likely that normal oxidation of organic matter happens ...

Vitamin C supplements may reduce benefit from wide range of anti-cancer drugs

... work to disrupt the mitochondria to push cell death." Heaney says that the amount of DHA used in the experiments resulted in an intracellular buildup similar to what could be seen in cancer patients using large supplemental doses of vitamin C. Researchers at Memorial Sloan-Kettering Cancer ...

LIAI launches new division to look at novel approaches to heart disease and inflammation

... disease." In the 1980s, Ley said immunology's role in heart disease first came to light when immunology researchers found that plaque buildup in the arteries also contained inflammation-causing T cells of the immune system. "This opened up the possibility that the inflammatory process was ...

Iron-moving malfunction may underlie neurodegenerative diseases, aging

... still not fully functional. Further experiments confirmed that when TRPML1 is defective, iron becomes trapped in the lysosome. One result of the buildup is formation of a brownish waste material, lipofuscin, known as the "aging pigment." In skin cells, lipofuscin is the culprit responsible for the ...

Better understanding of blood vessel constrictor needed to harness its power for patients

... generation blocked one or the other but still didn't work. A notable exception is endothelin-1 antagonists that reduce excessive pressure and tissue buildup inside the blood vessels of patients with pulmonary hypertension. In addition to constricting blood vessels, endothelin-1 can help blood vessels grow ...

September Geology and GSA Today media highlights

... could link the marine and terrestrial crises. Meyer et al. used an earth-system model to investigate the conditions necessary for hydrogen sulfide buildup and release to the atmosphere. They found that greater than three-fold increases in oceanic phosphate, a key nutrient derived from rock weathering, ...

Eating fish may explain very low levels of heart disease in Japan

... body mass index and diabetes. "Our study suggests that very high levels of omega-3 fatty acids have strong properties that may help prevent the buildup of cholesterol in the arteries," said Akira Sekikawa, M.D., Ph.D., study lead author and assistant professor of epidemiology at the University of ...

Weill Cornell science briefs June/July 2008

... red-blood-cell count. Common symptoms of the disease include fatigue, shortness of breath and an enlarged spleen, called splenomegaly, caused by a buildup of malformed red blood cells within the body. The spleen works to filter out these unhealthy cells in order to protect the body from harm, such as in ...

Radiation, nanotechnology, health care and more

... REFRIGERATORS -- Dr. Jason Harris, jastharris@aol.com , discusses an investigation initiated to study the tritium accumulation in frost and ice buildup in refrigerators and freezers. Results of the investigation showed that tritium from office building humidity can accumulate as frost on the freezer ...

Hepatitis C virus may need enzyme's help to cause liver disease

... PITTSBURGH, July 9 A key enzyme may explain how hepatitis C infection causes fatty liver a buildup of excess fat in the liver, which can lead to life-threatening diseases such as cirrhosis and liver cancer, report University of Pittsburgh Graduate ...

Penguins setting off sirens over health of world's oceans

... ice and the penguin chicks were forced into the water. While the adults could survive, the chicks needed two more months of feather growth and buildup of insulating fat to be independent. The likely result of the climate anomaly, Boersma said, was a total colonywide breeding failure that year. ...

The good and the bad of a potential Alzheimer's target

... neprilysin can reduce the formation of plaques and neuron death associated with Alzheimer's, at the expense of reducing the flies' lifespan. The buildup of amyloid-beta protein plaques within the brain is a major hallmark of Alzheimer's, and one that is believed to contribute to disease progression. ...

Research measures movement of nanomaterials in simple model food chain

... a significant amount of bioaccumulation (the increase in concentration of a substance in an organism over time) and biomagnification (the progressive buildup of a substance in a predator organism after ingesting contaminated prey). In their study, the NIST team investigated the dietary accumulation, ...

Avoiding Spleen Removal for Cooley's Anemia SufferersAvoiding spleen removal for Cooley's anemia suf

... red-blood-cell count. Common symptoms of the disease include fatigue, shortness of breath and an enlarged spleen, called splenomegaly, caused by a buildup of malformed red blood cells within the body. The spleen works to filter out these unhealthy cells in order to protect the body from harm, such as in ...

Pacific coast turning more acidic

... out. When the system works, the upwelling winds subside for a day or two every couple of weeks in what we call a relaxation event that allows that buildup of decomposing organic matter to be washed out to the deep ocean. But in recent years, especially in 2002 and 2006, there were few if any of these ...

Study supports reason for concern in childhood and adolescent obesity

... vessels) is key to maintaining vascular health. Endothelial dysfunction is a primary contributor to atherosclerotic cardiovascular disease (the buildup of fatty deposits on the inside walls of arteries) in adults and is associated with increased risk of heart attacks, stroke, and congestive heart ...

Climate change has major impact on oceans

... gas emissions is taken soon, these reefs will cease to exist as we know them. These same greenhouse gas emissions also are creating dramatic buildup of atmospheric carbon dioxide, which is rapidly making the worlds oceans more acidic, said panelist Scott Doney of the Woods Hole Oceanographic ...

A key enzyme helps keep the synapse on track

... to 'talk to' certain elements of the endocytic machinery," Dr. Ryan says. In each case, endocytosis slowed to a crawl, due in part, at least, to a buildup of clathrin coating on vesicles. Some synj1 mutations were more disruptive than others. "Dysfunction in the dephosphorylating enzyme for position ...
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