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Tag: "decreasing" at biology news

New research: Soy germ isoflavones reduce bone loss

... the required dosage of soy isoflavones for safely decreasing bone loss and preventing osteoporosis in postmenopausal women." Another recent study published in the journal of Fertility and Sterility demonstrated soy isoflavones' effectiveness and key role in improving mood and cognitive function in postmenopau...

Triple threat polymer captures and releases

...-fouling materials -- they found a progression of decreasing temperature as they went with different amounts of poly(ethylene glycol) relative to hyperbranched fluoropolymer in the composite material. "What's amazing is that there is a 55 degree temperature reduction at which this small molecule leaves the h...

Interfering RNA silences genes in 'slippery' immune cells

...vestigators succeeded in "knocking down," that is, decreasing gene expression by HALP. Because their previous research strongly suggests that HALP promotes latent HIV infection, the new technique has a potential application to HIV treatment. "The siRNA may represent a suicide vector: by knocking down HALP it ma...

Finding the right mix: A biomaterial blend library

... react by changing shape, ultimately increasing or decreasing contact with the films. In the body, such cell-material dynamics are critically important to the outcome--determining whether a biomaterial leads to inflammation or abnormal cell growth, for example. The new study represents an innovative line of ...

Changing length of days reverses how estrogen affects aggressiveness in mice

...ey role in increasing aggression in short days and decreasing aggression in long days. "So the differences in how estrogen affected behavior in long days compared to short days could not be explained by the hormone using different receptors in different times of year," Trainor said. So how did estrogen ha...

More kidney cancer is detected and treated early, yet death rate rises

...his study suggests a disconnect because we are not decreasing mortality rates." ...

Stem cell activity deciphered in the aging brain

...umption had been that the brain drain was due to a decreasing supply of neural stem cells in the aging hippocampus, said lead study investigator Bharathi Hattiangady, Ph.D., research associate in neurosurgery. Neural stem cells are immature cells that have the ability to give rise to all types of nerve cells in...

Exposure to dioxins influences male reproductive system, study of Vietnam veterans concludes

...tate leading us to speculate that dioxins might be decreasing the growth of the prostate in humans like they do in animals." The researchers found that veterans exposed to dioxin had lower incidence rates of benign prostate hyperplasia (BPH), better known as enlarged-prostate disease. BPH is a disease in hum...

A new target for painkillers

...r epilepsy sometime are used to reduce the pain by decreasing nerve cell excitability, but have side effects such as lethargy, fatigue, clouding of mental state and weight gain, McIntosh says. Antidepressants and muscle relaxants have been used, but they can cause weight gain, nausea and sexual dysfunction. ...

Study IDs protein that inhibits HIV from growing in cell cultures

... identified protein, NS5A, inhibits HIV in part by decreasing the number of CD4 receptors available to HIV. With fewer places for HIV to "dock," less HIV enters the cells to inflict destruction. However, Xiang cautioned, this is only part of the story, and the researchers must continue work to understand ho...

Hundreds of thousands of viral species present in the world's oceans

...her three samples showed increasing diversity with decreasing latitude, a trend that parallels previous findings from terrestrial ecosystems. In fact, the researchers predict that the world's oceans hold a few hundred thousand broadly distributed viral species, with some species-rich regions likely harboring th...

Genes and genius: Researchers confirm association between gene and intelligence

...ly have small, cumulative effects on increasing or decreasing I.Q., and I expect overall intelligence is a function of the accumulation of all of these genetic variants, not to mention environmental influences ranging from socio-economic status to the value that's placed on learning when children are growing up...

Fish growth changes enhanced by climate change

... the juveniles of the deep-water species all began decreasing well before the onset of commercial fishing. Dr Thresher said slower growth in fishes has been correlated with a variety of life history traits ?from higher mortality to reduced food availability and increased age or smaller size at sexual maturit...

Over a century after disappearing, wild elk return to Ontario

...m the transfer process. However, the death rate is decreasing each year, suggesting that the animals are adapting to their new home. Although pleased with the program’s success to date, Rosatte asserts that the work is far from over. "Our challenge for the future will be to develop accurate methods to estima...

Moonlighting enzyme linked to neurodegenerative disease

...lipoamide dehydrogenase (DLD), are responsible for decreasing the enzyme's primary role as a metabolizer, while increasing its role in breaking down frataxin, its second job. Moonlighting proteins and enzymes are molecules that perform two or more different functions. These proteins are thought to have evolv...

Swell gel could bring relief to back pain sufferers

...uses holes in the load-bearing tissue of the disc, decreasing disc height and resulting in pain. The microgel particles the research team have developed are like 'smart sponges' when dispersed in water. The material is a fluid at a low pH - in other words, a low level of acidity - and can be injected thro...

Scientists discover a new risk factor for Alzheimer's

.... Using cell culture studies, they discovered that decreasing the amount of SORL1 increased cells' production of amyloid-beta, a toxic fragment of another protein that destroys neurons. Production of amyloid-beta is the key event in the progression of Alzheimer's disease. Amyloid-beta is made when cells impr...

Stability of mRNA/DNA and DNA/DNA duplexes modulates mRNA transcription

...ion near 3?end of genes. mRNA levels increase with decreasing thermodynamic stability of this region. "The observed correlations are impressive, given that several other factors like promoter effectiveness, promoter regulation, and mRNA half-life directly influence mRNA level, as well," says Stoynov. The res...

Penn study on olfactory nerve cells shows why we smell better when we sniff

... but smaller reaction in the olfactory neurons. By decreasing pressure of the non-odor solution, they also found that the reaction in the olfactory neurons was less, confirming that it was sensitive to mechanical stimulation. When olfactory neurons respond to odor molecules, they transmit chemical energy int...

Pitt study notes decline in male births in the US and Japan

..., along with older age of parents, may account for decreasing male births.? Dr. Davis explained that environmental factors, such as prenatal exposure to endocrine- disrupting environmental pollutants may impact the SRY gene ?a gene on the Y chromosome that determines the sex of a fertilized egg. Other envir...

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