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Tag: "effectively" at biology news

Flu not the only germ threat this time of year

...l a doctor immediately, because flu can be treated effectively with new medications as long as it's caught within the first 48 hours. ...

A new focus for the mechanism of nerve growth

...lebbistatin, that relaxes non-muscle myosin II and effectively blocks processes such as cell division. "Past research has focused on how actin structures are assembled at the leading edges of motile cells," said Forscher. "Instead, this paper investigates turnover or recycling of the actin networks. As the com...

Study in Science holds promise for a new approach to drug therapy

...general principle, M119 and M201, which bound most effectively to the hotspot. For the purposes of the experiment, researchers chose to test the affect of M119 and M201 on two biological systems that the G protein gamma-beta subunit controls. In one, white blood cells home in on the site of infection. The other ...

Study finds evolution doesn't always favor bigger animals

...have smaller surface to volume ratios and can more effectively conserve heat in cold environments. Similarly, sma...adapted to warmer environments where they can more effectively dissipate heat. However, this simple relationship doesn't explain why ostracodes and other cold-bl...

Newly discovered protein kills anthrax bacteria by exploding their cell walls

... being the scariest: They are easy to spread, kill effectively and call for special actions by the pubic health s...c pH range of six to seven, so that they work very effectively in our bloodstream, but may not useful in many environmental conditions. "PlyPH works in an extremel...

Cell barrier shows why bird flu not so easily spread among humans

...ses, require access to the cells of their hosts to effectively reproduce. If they cannot enter a cell, they are unable to make infectious particles that infect other cells -- or other hosts. "Our findings provide a rational explanation for why H5N1 viruses rarely infect and spread from human to human, although ...

Unique equine cataract surgery offered on routine basis

...ssor Knottenbelt said: "This new surgery shows how effectively the latest human cataract surgical techniques can translate successfully to bear on an equine problem. We are pleased that the University can now offer such progressive treatment to tackle equine cataracts on a larger scale than currently available."...

Scientists design potent anthrax toxin inhibitor

...teps of enzyme entry cannot occur and the toxin is effectively neutralized. The investigators tested the anthrax inhibitor in rats. When given in relatively small doses, injection of the inhibitor at the same time as anthrax toxin prevented five out of nine rats from becoming ill. Slightly higher doses of the ...

Mice studies illustrate potential of chimp/human antibodies to protect against smallpox

...hybrid antibodies from chimpanzees and humans that effectively inhibited the spread of both vaccinia and variola viruses in test tube experiments. Moreover, the hybrid antibodies proved more effective than VIG when tested in mice infected with vaccinia virus, even when given two days after virus exposure. "This...

Invasive species harms native hardwoods by killing soil fungus

...ants, forming an intricate interwoven network that effectively extends the plant's root system. AMF depend on plants for energy and plants depend on the fungi for nutrients. When tree seedlings, which depend strongly on AMF, began to decline in the presence of garlic mustard, the researchers suspected that the i...

Marijuana-like compounds suppress the immune response

...ont/rear polarity, which is something they need to effectively migrate to sites of infection and inflammation. Because cannabinoids seem to suppress activated white blood cells, Tohyama believes they could have a potential use in the treatment of inflammatory diseases. ...

Melanoma vaccine strategy shows promise in laboratory experiments

...peptide would trigger the killer T cells even more effectively than the monocyte cells used in the current study. Indeed, such prepared dendritic cells might serve as the basis for a treatment vaccine that could be taken into human clinical trials. Herlyn is senior author on the Cancer Research study. The lead ...

York researchers develop pollution-busting plants to clean up contaminated land

...large amounts of biomass. A tree, for instance, is effectively a big pump, seeking out water, and if we can redeploy the enzyme which degrades the explosive making it harmless, it combines the capabilities of soil bacteria with the high biomass and uptake properties in plants "We are using an enzyme already exi...

Horse antibodies against the bird flu virus H5N1 are effective as treatment in mice

... reveals that a dose of 100 µg of horse anti-serum effectively protects infected mice. These results suggest that anti-H5N1 antibodies developed in horses could potentially be used to prevent death from H5N1 influenza, or as early treatment for the disease, in humans. Jiahai Lu from Sun Yat-Sen University in Gu...

MIT chemist discovers secret behind nature's medicines

...d, the protein closes down around the active site, effectively pulling the trigger on the gun. "We were surprised," Drennan said. "The change in activity required for an enzyme to be capable of catalyzing a halogenation reaction is so radical that people thought there must be a really elaborate difference in th...

Enzyme inhibitors block replication of SARS virus

...rs to lock up this site, known as SARS 3CLpro, and effectively stop the virus from infecting additional cells in the body. In 2004, Wong's lab discovered that Lopinavir, a protease inhibitor of HIV also known as TL3, also served as weak inhibitor of the SARS 3CLpro site (PNAS, 101, 10012-10017). Since then, me...

Frog’s ear canal may provide insights for understanding human hearing loss

...- namely, the eardrum must be very thin to vibrate effectively at these high frequencies, and the bones of the middle ear must be extremely lightweight in order to transmit ultrasonic vibrations to the inner ear. The presence of an ear canal not only protects A. tormotus' thin and fragile eardrum from the enviro...

New maps reveal true extent of human footprint on Earth

...oratory] will truly be a brave new experiment that effectively bridges science, decision-making and real-world environmental practice - collectively envisioning a new way to live sustainably." ...

Bees solve complex colour puzzles

...w and green. To solve this puzzle, the bees had to effectively segment the scene into its different regions of illumination, and then find the correct flowers within each region. Dr Beau Lotto of the UCL Institute of Ophthalmology says: "Although we knew that bees were able to recognise flowers under different ...

Twin molecular scissors link creation of microRNAs with gene-silencing

...NA to cut. The cutting destroys the messenger RNA, effectively silencing the gene from which it was transcribed. "The two enzymes in the complex are like two scissors working together in a concerted fashion, connected and coordinated by the third member of the complex," Shiekhattar explains. Another scientific...

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