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Tag: "compounds" at biology news

Metal-containing compounds show promise as HIV weapon

...eases from working. Other advantages are that the compounds are stable and can be modified in many ways by att...able or less toxic than another, for example.These compounds were also found to bind to the protease in a different location than the current class of protease i...

Fighting malaria by manipulating mosquitoes' sense of smell

...romising of these new avenues: developing chemical compounds that interfere with the malaria mosquitoes' exquis... Vanderbilt and Yale, which will identify chemical compounds that interact strongly with receptors in the female mosquito's antennae and appear to be related to ...

Vaginal gel may provide a new approach to HIV prevention

...us. The research suggests that a microbicide using compounds that inhibit the processes by which HIV attaches t...Partnership for Microbicides to develop two of the compounds evaluated in the study as potential vaginal microbicides to protect women from HIV. Under the agree...

UF scientist finds unexpected link between cat and human AIDS viruses

...de protection in vaccine form against HIV." Some compounds made from separate virus strains have been successfully used in vaccines against viruses from the same subfamily, such as smallpox in humans, which is made from cowpox virus, and human measles vaccines for canine distemper in puppies. "Therefore, pr...

Method slashes quantum dot costs by 80 percent

...eit, and solutions containing cadmium and selenium compounds are injected. They chemically decompose and recomb...k down at high temperatures, but no one uses these compounds for chemical reactions," said Wong. In addition to finding that other quantum dot nanostructures cou...

The right drug at the right time

...eit, and solutions containing cadmium and selenium compounds are injected. They chemically decompose and recomb...k down at high temperatures, but no one uses these compounds for chemical reactions," said Wong. In addition to finding that other quantum dot nanostructures cou...

Many cats unaffected by catnip, C&EN reports

...il, says McDaniel. Nepetalactone is one of several compounds known to set off the characteristic set of behaviors associated with exposure to catnip. These behaviors generally start with sniffing, licking and chewing, followed by head shaking, body and head rubbing, and then repeated head-over-heels rolling, M...

Amphetamines reverse Parkinson's disease symptoms in mice

...iscovery after testing the utility of more than 60 compounds for reversing Parkinson's symptoms in a mouse mode...n the mice also provides a very sensitive test for compounds with potential therapeutic value, the researchers said. In the United States, at least 500,000 peop...

UT Southwestern researchers develop screening test for cells that activate immune system

... cell-based screening method that identifies which compounds activate immune-response cells that hold promise f... technique can scan thousands and even millions of compounds to identify those that activate dendritic cells, which are on constant recon patrol throughout the b...

Smoking damages key regulatory enzyme in the lung

... mood regulation and one that breaks down chemical compounds that elevate blood pressure, said the Society of N... MAO A in smokers' brains. MAO A breaks down many compounds that affect blood pressure, and the lung is a major metabolic organ in degrading some of these compo...

New factor implicated in allergy and asthma attacks

...lead to extensive research into discovery of novel compounds that either specifically inhibit pollen NADPH oxid...inate this oxidative insult." Because antioxidant compounds are quickly metabolized in the lungs and airways, it may be necessary to deliver them every few hour...

Anti-cancer Compound In Beer Gaining Interest

...omen. "Xanthohumol is one of the more significant compounds for cancer chemoprevention that we have studied," ...s, scientists say. It, and other related flavonoid compounds found in hops, inhibit a family of enzymes, commonly called cytochromes P450 that can activate the c...

Plant wounds trigger bacteria

...gall. The cells of the crown gall tumor synthesize compounds called opines, which serve as food for the bacteri...acterial congress. The plasmid recognizes organic compounds called phenols that leak out of damaged cells when a plant is wounded. A bacterial protein called Vi...

Give thanks for the cranberry, say dental researchers

...ption of cranberry juice, Koo hopes to isolate the compounds within the juice that pack an anti-cavity punch. T...ch and Extension Center at Rutgers, to isolate the compounds in juice that are most protective. A food scientist turned dentist, Koo became fascinated with rese...

Natural compound from 'pond scum' shows potential activity against Alzheimer's

...entifying, synthesizing and studying new bioactive compounds from natural sources. There is no cure for Alzheimer's at present, although cholinesterase inhibitors have shown promise for delaying or preventing the symptoms of mild to moderate forms of the disease, experts say. The newly isolated compound, nost...

Toasty oat aroma influenced by presence of health-linked polyphenols

...ols developed a lower level of Maillard-type aroma compounds as measured by gas chromatography and a panel of t...ols developed a lower level of Maillard-type aroma compounds as measured by gas chromatography and a panel of trained human sniffers. The Penn State group's a...

Chemical compound inhibits tumor growth, size in new mouse study

...ols developed a lower level of Maillard-type aroma compounds as measured by gas chromatography and a panel of t...ols developed a lower level of Maillard-type aroma compounds as measured by gas chromatography and a panel of trained human sniffers. The Penn State group's a...

'Acid rain' and forest mass: Another perspective

...il. Amongst the effects of the deposition of these compounds on the forest mass are the well-known nutrition disorders of the same. One classic effect is that of cation deficit (particularly magnesium) due to the washing both of the forest canopy and the soil produced by these together with anions (sulphates a...

Seaweed yields new compounds with pharmaceutical potential

...in the south Pacific Ocean. Some of these natural compounds showed the potential to kill cancer cells, bacteri...s don't know yet whether the concentrations of the compounds required to kill the bacterium would be harmful to humans. The compound that was isolated in the gr...

Male elephants woo females with precise chemistry

...ling." An enantiomer is one of a pair of chemical compounds whose molecular structures are mirror images of each other. Frontalin, a pheromone discharged during musth by male Asian elephants from a temporal gland located between the eye and ear, comes in two forms, each representing one half of the enantiomer...

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