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Tag: "lowers" at biology news

Researchers add new tool to tumor-treatment arsenal

...ctivity in phase I and II clinical trials. RAD001 lowers the amount of DNA-damaging agent needed by blocking p53's DNA-repair function, automatically killing the cancer cells when agents like cisplatin are introduced. "These findings provide the rationale for combining DNA-damaging agents with sensitizing...

Thai spice helps cut blood sugar swings

...e body often produces too much insulin, which then lowers the blood sugar level. When that happens, he writes, "new cravings are created, requiring more quick carbohydrate fixes." Next steps Wielinga again warned that any comparison between rats and humans regarding HCA have to be treated very carefully. ...

Oceans turning to acid from rise in CO2

... from 1 to 14, with 7 being neutral. Anything that lowers pH makes the solution more acidic. The scientists calculated that over the past 200 years, the pH of the surface seawater has declined by 0.1 units, which is a 30% increase in hydrogen ions. If emissions of CO2 continue to rise as predicted by the In...

Seeing the forest and the trees

...nt portfolio. Having many different types of trees lowers overall variability of a forest's ability to provide crucial services." ...

Technique offers new view of dynamic biological landscape

...reducing its lifespan by mutating the mRNA message lowers the amount of protein the cell can produce. The group called this approach "decreased abundance by mRNA perturbation" (DAmP). "The DAmP technique gave us a way of lowering the abundance of a target gene's messenger RNA while maintaining its natural...

Discovery of new molecular tools for biosynthesis could lead to advances in use of pectin

...humans. (It has also been demonstrated that pectin lowers serum cholesterol levels.) While not the breakthrough that will allow immediate manipulation of total pectin biosynthesis, it is, one of the researchers involved said, "the first word of the Rosetta Stone that will show us the blueprint for pectin bi...

How nice, brown rice: Study shows rice bran lowers blood pressure in rats

...f rice processing, called rice bran, significantly lowers blood pressure in rats whose hypertension resembles that of humans. The team reports their findings in the March 8 issue of the Journal of Agricultural and Food Chemistry , published by the American Chemical Society, the world’s largest scientific ...

Attacking cancer's sweet tooth is effective strategy against tumors

...). This results in the expulsion of protons, which lowers the mitochondria's membrane potential. Curiously, the mitochondria of cancer cells exhibit a high membrane potential. Researchers suspected that was because the cells have switched to an alternative means of producing ATP, namely glycolysis, but it w...

Research reveals control of potent immune regulator

...eta (TGFb), a substance also made by NK cells that lowers IFNg production. The research, by investigators with the Ohio State University Comprehensive Cancer Center ?Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, found that the pro-inflammatory cytokines not only cause NK cells ...

Protein clue to tailor-made antibiotics

...suspecting bacterium and blocks a key process that lowers the cell's defences and allows the toxin to enter....they've christened 'competitive recruitment') that lowers the cells' defences toward the colicin. ...

Internal body clock dictates timing of different types of stroke

...bably have begun earlier, say the authors. Sleep lowers blood pressure in the body, so cuts the risk of stroke, but low blood pressure is a risk factor for cerebral infarction, say the authors....

Compound in dairy products targets diabetes

...A improves the body's misregulation of insulin and lowers the level of glucose in the blood in patients with adult onset, or Type-2 diabetes, the most common form of this disease. However, Vanden Heuvel cautions that while having a diet that is high in dairy and meat products, and thereby CLA, might h...

Report warns about carbon dioxide threats to marine life

...ss alkaline and more acidic. The increased acidity lowers the concentration of carbonate ion, a building block of the calcium carbonate that many marine organisms use to grow their skeletons and create coral reef structures. "This is leading to the most dramatic changes in marine chemistry in at least the ...

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

...wo states. Ultimately, this technique dramatically lowers the overall amount of Cu catalyst used in ATRP by as much as 1,000 times. The team's new technology virtually eliminates the need to remove miniscule amounts of catalyst remaining in a product. For example, many ATRP-generated plastics for medical ...

Hair-growth drug artificially lowers PSA levels in prostate cancer screening, study finds

...de, taken by millions of balding men, artificially lowers the results of the prostate-specific antigen (PSA)...ts. "It's not universally known that finasteride lowers PSA levels in younger men who take it for hair growth," said Dr. Claus Roehrborn, chairman of urolog...

Eating less salt could prevent cardiovascular disease

...body of evidence showing that cutting back on salt lowers blood pressure, studies showing subsequent levels of cardiovascular disease in the population have been limited and inconclusive. This research provides some of the strongest objective evidence to date that lowering the amount of salt in the die...

Researchers discover inherited mutation for leukemia

...program. "It does not shut down the gene, but just lowers its expression somewhat. "Recently, many cancer geneticists have come to believe that such subtle changes are common causes of cancer, and this is one of the first, strong examples of that principle." The study succeeded because it combined t...

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

... after HIV docks onto a host cell, it dramatically lowers the energy required for a cell membrane to bend, making it easier for the virus to infect immune cells. The finding, in press in Biophysical Journal, will provide vital data to conduct future computer simulations of HIV dynamics to help further drug ...

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