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Tag: "aspects" at biology news

No-scalpel vasectomies by skilled surgeons may speed recovery

...tional organization that evaluates research in all aspects of health care. Systematic reviews draw evidence-based conclusions about medical practice after considering both the content and quality of existing trials on a topic. The larger study, conducted in 1999, included 1,429 men in five countries: Braz...

How genetic malfunction causes a form of retardation

...esis, and then this might in turn alter many later aspects of neural development, ultimately resulting in impaired circuitry and cognitive dysfunction.? ...

Out of Africa -- Bacteria, as well

...terium could help us attain further information on aspects of human history that are still hotly disputed today if we analyzed H. pylori in conjunction with human data." For example, after leaving East Africa, the H. pylori population spread through limited localities in southern Africa, West Africa, Northea...

Proteins important in Alzheimer's, Parkinson's disease travel in the slow lane

...living cultured mouse axons. This clarified unique aspects of slow-protein transport. He found that the "slow...ling" speculates Roy. "Our study reveals novel aspects of axonal transport of an important class of proteins, namely the slow component-b proteins, and als...

Exploring the molecular origin of blood clot flexibility

...g prophylactic and therapeutic treatments for many aspects of cardiovascular disease and stroke, suggest the investigators. ...

Researchers from the UGR use a bacterium to obtain biopreservatives from food

...ed in the doctoral thesis approaches the molecular aspects of the permeabilization that AS-48 exerts on bacterial membranes. "We designed a strategy to carry out site-directed mutagenesis on the as-48A gene, the one which generates enterocin AS-48", the researcher from Granada pointed out, "and we have studi...

The chimpanzee stone age

...elative, the chimpanzee, constantly highlights new aspects of human evolution, and a better protection of this endangered species will guarantee that we can continue uncovering new facets of our past. Relevant finds come from all parts of the African continent, including the rainforest, and not just the clas...

Cancer vaccines -- Taking a jab at cancer by stimulating the immune system

...erived peptides to elicit responses from different aspects of immune system. The vaccine currently in trial uses autologous (patients?own) dendritic cells (DC) pulsed with a combination of three peptides: two that trigger cytotoxic T cells, which directly kill targeted tumor cells, and one peptide that stimu...

20-year study shows significant rise in childhood obesity, especially among girls

... "As societies become more technological, various aspects of everyday life demand less and less physical activity and this is bound to contribute to childhood obesity. "And as overweight and obese children become overweight and obese adults they run a much higher risk of developing cardiovascular disease...

Indicators for risk of heart disease are higher in passive smokers

...vegetable consumption ?one of the more influential aspects of diet on cardiovascular health ?and for lifestyle factors such as physical activity, social class and obesity. Restricting analysis to those 70 or younger with no history of heart attack, heart failure or stroke also made lifwttle difference in the...

Saving endangered whales at no cost

...fort in lobster fishing is characteristic of other aspects of fishing industries around the world--including shrimp and tuna longline industries that expend much more effort than needed to obtain optimal yields, while threatening turtles and non-targeted fish, including shark species, as bycatch....

Technology reveals 'lock and key' proteins behind diseases

...tors for ABC transporters may reveal unanticipated aspects of how these transporters function and help researchers gain clues for fighting disease and drug resistance." Using iMYTH, the Stagljar lab identified six proteins that interact with and presumably communicate with the ABC transporter Ycf1p, a y...

New protein inhibitor impedes growth of cancerous cells

...normal cells impose on themselves. Because central aspects of cell division are under the control of just a few key kinases, these proteins represent potentially important targets for new cancer therapeutics, but few if any effective inhibitors have been identified as acting specifically and effectively agai...

Renegade RNA -- Clues to cancer and normal growth

...tional hidden microRNA elements that control other aspects of their behavior in cells. They also are curious to figure out what miR-29b is doing in the nucleus. Because microRNAs have been implicated in cancer as well as normal development, Mendell hopes that further study of miR-29b will reveal other, hidd...

New study challenges 'critical period' in childhood vision development

...on. Sinha and his colleagues posit that while some aspects of vision, such as acuity, might indeed be subject to critical periods, many other aspects of functional vision might be learnable even at later ages. In other words, perhaps our brain is not...

Tracking sperm whales and jumbo squid

...les play in oceanic ecosystems and fisheries, many aspects of their lifestyle—including feeding and hunting—are as mysterious today as they were when Melville made the following observation in Moby-Dick: "For though other species of whales find their food above water, and may be seen by man in the act of fee...

The sturdier sex? -- Study by Pittsburgh scientists finds female stem cells work better

...espectively. The investigators examined several aspects of stem cell behavior. They screened for differences in thousands of genes, and they also looked for differences related to estrogen. In many ways the male and female stem cells were similar, Dr. Deasy said. "The major difference was what we obser...

Researchers identify gene involved in dog size

...the study are to identify genes that control other aspects of canine morphology including, for instance, leg length and skull shape. Three high-resolution photos depicting the wide size range among dog breeds are available at: www.genome.gov/pressDisplay.cfm?photoID=20009 ; www.genome.gov/pressDisplay....

Herpes infection may be symbiotic, help beat back some bacteria

...ng and can infect the central nervous system. Many aspects of Listeria infection in mice are also similar to those that occur in humans infected with tuberculsis. They found that when mice had a latent herpes infection, the bacteria replicated more slowly and were less likely to kill the mice. When herpes...

100 percent of pregnant women have at least one kind of pesticide in their placenta

...esticides found in the mothers?placenta. Among the aspects associated with a higher presence of pesticides we find an older age, higher body mass index, less weight gained during pregnancy, lower educational level, higher workplace exposure, first-time motherhood and lower weight in babies. "Serious effe...

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