Tag: "low" at biology news

Lycopene slows human prostate tumour growth in mice and combined with vitamin E is even better

...apeutics in Geneva. The study involved testing one low and one high dose of synthetic lycopene alone, one low and one high dose of synthetic vitamin E alone and a combination of low dose synthetic lycopene and ...

'Dead zone' area shrinking, Texas A&M prof says

...n in the northern Gulf of Mexico that suffers from low oxygen and results in huge marine losses - and muc...reviously hypoxic - a technical term for extremely low dissolved oxygen concentrations in water - had broken up and appeared to pose little threat to marin...

Genetic differences might help distinguish thyroid cancers

...the other hand, showed no expression by CLDN10 and low activity by IGFBP6 and/or by CAV1 and CAV2. If verified in a larger number of tumors, these genes, in combination with other known genetic changes in thyroid cancer cells, form the basis for a valuable diagnostic tool, says Eng, a recipient of ...

New Arizona State center brings science to policy on issues of water resources and urban growth

...t island effect, which has raised nighttime summer low temperatures almost 10 degrees in the past 50 years." "Our team of scientists from geography, anthropology, sociology, management, psychology, math, computer science and public affairs will work with our community partners (City of Phoenix,...

Marijuana use could cause tubal pregnancies

... of the mouse embryo in the wall of the uterus. At low concentrations, it synchronizes embryo development with uterine receptivity so that successful implantation occurs. At higher levels, however, implantation is blocked. Elevated levels of anandamide also have been shown to cause spontaneous pregnancy ...

Scientists explore genome of methane-breathing microbe

... capsulatus uses two separate systems at high and low copper concentrations for oxidizing methane. Scientists say the organism's potential significance for biotechnology include the use of bacteriophage (viruses that infect bacteria) that have made a home in the genome. Such phages could be exploited t...

Genes expose secrets of sex on the side

...ption, scientists explained the relative youth and low variability of the Y chromosome by suggesting that a beneficial mutation on the Y had swept through the whole world. However, the genetic patterns the UA researchers found contradicts those ideas. If a beneficial mutation had swept throug...

Genetic modification of linseed produces healthier omega 3 and 6 fatty acids

...ironment. As demand rises for edible oils that are low in saturated fats and high in poly-unsaturated fats, in particular very long chain omega 3- and omega 6-poly-unsaturated fats, the production of these oils in plants may reduce environmentally and economically unsustainable pressures on both wild and...

JCI table of contents September 15, 2004

...ta fit well with previous work that indicated that low doses of aspirin, which inhibits TXA2 more than PGI2, has been used as anti-platelet therapy for the prevention of myocardial infarction and recurrence of strokes. TITLE: Roles of thromboxane A2 and prostacyclin in the development of atherosclerosis ...

Picking prostanoids to provide protection

...ta fit well with previous work that indicated that low doses of aspirin, which inhibits TXA2 more than PGI2, has been used as anti-platelet therapy for the prevention of myocardial infarction and recurrence of strokes....

Gene expression in liver tumors and patient prognosis

...ight into the pathogenesis of HCC. Tumors from the low survival subclass had a strong cell proliferation and antiapoptosis gene expression signatures. They also had higher expression of genes involved in ubiquitination and histone modification, which suggests an involvement of these processes in aggressi...

A probable cause for high blood pressure identified - shows links with diabetes

...leasers of insulin ever discovered. However, while low concentrations of the ribotide stimulate insulin release and are therefore therapeutic, much larger concentrations block release, a condition that produces diabetes. Thus it is important that the ribotide levels in the pancreas be well controlled. ...

Researchers identify distinctive signature for metastatic prostate cancer

...In contrast, cells that were not metastatic showed low levels of activity. In particular, said Beachy, their experiments showed that pathway activation in metastatic cancers depended on the expression of Smoothened suggesting that gene may be "a focal point of regulation in tissue regeneration and tum...

Proteins show promise for mosquito control

...t to be performed. "We want a specific target with low residue time- two to three weeks and it should be degraded," Lan says. Lan and her team have patented the gene and the methods for screening the compounds. It will take a year to screen another 20,000 chemicals. After that, they will be looking for...

New dye directly reveals activated proteins in living cells

...itive, enabling detection of protein activation at low levels, unlike current fluorescence methods that require protein over-expression for detection. "For the first time we saw native Cdc42 activity in living cells," Hahn said. "But perhaps the most important aspect of the paper is that we demonstrated ...

New research suggests early diet may play key role in protecting against childhood leukaemia

...cal Centre, Chicago will present evidence that the low incidence of leukaemia in Asia is due in part to the protective effect of turmeric, a spice used widely in Asian cooking. "Some of the known risk factors that contribute to the high incidence of childhood leukaemia are the interaction of many lifesty...

Two Virginia Tech energy-related inventions win R&D 100 awards

...pectrometer card, which makes the retrieval system low cost and portable. Since the optical fibers are the same as those used in the telecommunications industry, the cost of the fiber is also very low. Wang's group developed the technology relatively quickly. In 1997, Wang told the DOE's National Petrol...

Israeli scientists reveal the plan of a key cellular machine

...y them individually. Split-second freezing at very low temperatures allowed the scientists to view the spliceosome units in as close to a natural state as possible. From thousands of images, each at a slightly different angle, a composite 3-D structure of the spliceosome was built up. The revealed stru...

IBD (Crohn's/ulcerative colitis) conference adds 18 speakers; APS meeting starts Thursday

...n Japan, for instance, has risen from a relatively low level to about the same rate as in the U.S. According to the Crohn's and Colitis Foundation of America (CCFA), there are an estimated 1 million IBD sufferers in the U.S., about equally split between male and female, with about 30,000 new diagnoses a ...

Study by Israeli scientists provides insight on DNA code

...y them individually. Split-second freezing at very low temperatures allowed the scientists to view the spliceosome units in as close to a natural state as possible. From thousands of images, each at a slightly different angle, a composite 3-D structure of the spliceosome was built up. The revealed stru...

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