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Tag: "reduces" at biology news

St. Jude announces breakthrough in eye cancer treatment

...he eye cancer retinoblastoma that not only greatly reduces the size of the tumor, but does so without causing the side effects common with standard chemotherapy. The treatment also appears to be suitable for certain forms of breast, lung, prostate and colon cancer, and is simple enough for widespread use eve...

Virtual duck bills demonstrate species coexistence

...ency." However Gurd found that avoiding detritus reduces the rate at which ducks can filter water. "It is this trade-off between avoiding detritus and foraging rate that allows ducks to partition resources" said Gurd. "Ducks with long lamellae are more efficient at selecting smaller food particles while du...

Groundbreaking Canadian asthma study

...hermoplasty is a minimally invasive procedure that reduces the amount of airway smooth muscle that is respons...evice generates radio frequency/thermal energy and reduces areas of underlying smooth muscle in the airways. The procedure is completed in three treatment sess...

Reactivated gene shrinks tumors

...hat re-activating p53 in mouse tumors dramatically reduces the size of the tumors, in some cases by 100 percent. "This study provides critical genetic evidence that continuous repression of a tumor suppressor gene is required for a tumor to survive," said Andrea Ventura, an Italian postdoctoral associate...

Circumcision: A proven strategy to prevent HIV

Male circumcision significantly reduces the risk of acquiring HIV in young African men, according to a study led by University of Illinois at Chicago professor of epidemiology Robert Bailey. The study is published in the Feb. 24 issue of The Lancet. Researchers conducted a clinical tr...

Too much of a good thing? Excess nutrients or water limit biodiversity

...kes an ecosystem more homogeneous and consequently reduces the number of opportunities for competing species to coexist. Put another way, it reduces the number of niches, allowing a few species to dominate. The study, conducted by David Tilman, ...

Research to spotlight carbon monoxide benefits

...rbon monoxide. The slow release of carbon monoxide reduces blood pressure for someone who has angina, for instance. "This work is very much in its infancy. We became involved because some of our organometallic compounds, which carry carbon monoxide, were showing potential to release carbon monoxide slowly...

Adding radiation decreases breast cancer recurrence

... after breast conserving surgery for breast cancer reduces recurrence and prevents development of additional ..., such as tamoxifen, further improves survival and reduces recurrence. Women over 65 are at the highest risk for breast cancer and make up half of those di...

Anti-herpes treatment reduces HIV levels in women infected with both viruses

...e adds. 'They show that valacyclovir significantly reduces the frequency and quantity of HIV detectable in genital secretions and, in addition, reduces the quantity of HIV in the plasma. As expected, there was also dramatic reduction in the detection o...

Experimental vaccine given during pregnancy reduces stillbirths from common virus

...Health have developed an experimental vaccine that reduces stillbirths among rodents born to mothers infected with cytomegalovirus (CMV)—a common virus that can also cause mental retardation and hearing loss in newborn children who were infected in early fetal life. Estimates place the number of U.S. childr...

Eating less salt could prevent cardiovascular disease

... date that lowering the amount of salt in the diet reduces the long term risk of future cardiovascular disease, say the authors of the report. Researchers followed up participants from two trials completed in the nineties which had been conducted to analyse the effect that reducing salt in the diet had on...

Dual gene therapy suppresses lung cancer in preclinical test

...delivered in lipid-based nanoparticles drastically reduces the number and size of human non-small cell lung cancer tumors in mice, researchers at The University of Texas M. D. Anderson Cancer Center and the University of Texas Southwestern Medical Center report in the Jan. 15 edition of Cancer Research. Two...

New biofuels process promises to meet all US transportation needs

...ogen derived from water through solar electrolysis reduces the amount of biomass needed," Agrawal said. "The average energy efficiency of growing crops is typically less than 1 percent, whereas the energy efficiency of photovoltaic cells to split water into hydrogen and oxygen is about 8-10 percent. I am get...

Scientists find potential 'off-switch' for HIV virus

...sistor," a component of an electrical circuit that reduces the flow of current. "The resistor paradigm is...ly keep the virus in its dormant phase. "SirT1 reduces the strength of the signal to replicate," Weinberger said. "It may prove to be the key part of the r...

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

...reeding, and other causes; in addition, each crash reduces the genetic diversity of a species, lowering its ability to adapt and making it more prone to extinction. ...

Stem cells act through multiple mechanisms to benefit mice with neurodegenerative disease

... Sandhoff results from a genetic mutation that reduces the body's supply of an enzyme, called hexosaminidase ("hex"), used by brain cells to metabolize excess fatty material called lipids. Onset is typically at six months in human infants. The accumulation of lipids in brain tissue destroys the brain cel...

Female chimps keep the bullies at bay

...ot synchronize their reproductive activities which reduces the opportunities for less-desirable males to coerce them into mating. The findings have just been published online in Springer's journal Behavioral Ecology and Sociobiology. Most studies of primates to date have suggested that females synchronize ...

Aspirin discovery may improve cancer treatments

.... "Inhibiting or slowing down protein synthesis reduces the accumulation of incorrectly folded proteins in cells, which reduces cellular stress and allows protein synthesis to return to normal." Under conditions of cellular ...

Helium helps patients breathe easier

...ng the air easier to breathe. This combined effect reduces the amount of air trapped in the lungs during exercise. "This means they don't have to work as hard to breathe and they are not so short of breath during exercise, which allows them to do more," said Dr. Neil Eves, lead author on the study. Eves c...

Transfusion expert urges wider use of filtered blood

...ving the foreign white cells from transfused blood reduces the chances of a negative reaction by the host immune system. In 1998 the University's Strong Memorial Hospital was among the first hospitals in the country to begin using leukoreduced blood for all cardiac surgery cases. Since then, the hospital has...

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