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Tag: "effect" at biology news

US conservation efforts bring more marine turtles to UK

...f of the last century, we can now see the positive effect that recent conservation efforts have had on these turtle species.? A large majority of marine turtles that visit Northern European waters hatch in the Americas and can spend nearly four years travelling thousands of miles to British waters. Scient...

Groundbreaking Canadian asthma study

...rticular way of treating the airway had a profound effect on the smooth muscle and not much else, Dr. Miller explains. "The amount of smooth muscle is significantly reduced by thermoplasty and we recognized that this procedure might therefore be an appropriate treatment for people with asthma." "I’m quit...

New UD technology removes viruses from drinking water

...ction Agency's Safe Drinking Water Act, which took effect on Jan. 8. "What is unique about our technology is its ability to remove viruses--the smallest of the pathogens--from water supplies," Pei Chiu, an associate professor in UD's Department of Civil and Environmental Engineering, said. Chiu collab...

Cancer cells forming blood vessels send their copper to the edge

...e implications of the research do not end with the effect on angiogenesis. The dynamics of cellular copper this study revealed also have broad implications on the regulation of the metal ion content in metal-binding proteins. If such dramatic changes in where cellular copper is stored and used can happen so...

Human preference for other species could determine whether they survive

... the upper body, the neck and head. He likened the effect to that of a man in a tuxedo pinning on a red carnation. Unlike some other types of animals, human preference for particular penguin species does not seem to be driven by a "cuteness" factor. The four books Stokes examined were published in the l...

Monitoring poisons in the environment -- a woolly matter

...higher in male sheep, which has been linked to the effect of androgens on metabolism. Dr Sneddon comments, "Sheep wool evidently has potential as a bio-indicator of naturally occurring heavy metal concentrations in upland areas, which have previously not been assessed in this way". Future studies are pla...

Light wine intake is associated with longer life expectancy in men

...onsumption is associated with a further protective effect when compared to that of light-to-moderate alcohol... show whether the agent being studied has a causal effect on health. The Netherlands study ?called the Zutphen Study ?involved a cohort of 1,373 men born be...

Dig deeper to find Martian life

...derstand the radiation environment on Mars and its effect on past and present life. This is the first study to take a thorough look at how radiation behaves in the atmosphere and below the surface and it’s very relevant to planned missions. The best chance we have of finding life is looking in either the se...

Researchers show that veins stiffen as we age

...ns. In each case, they found that the tests had no effect on the response of the veins in either age group. "Thus, we think that the stiffening of our veins as we age is probably due to structural changes, such as a thickening of the vein walls," Farquhar said. "Hardening of the arteries is a good analogy...

Microbes compete with animals for food by making it stink

...und causing the behaviors. "But we can say the effect is chemical because we got rid of the nutrient and texture aspects of the bait and determined that it's something in this fraction of the bait's chemistry," Hay said. "It's either a complex mix of chemicals or perhaps something we destroyed during ou...

Gene key to taste bud development identified

...ng cancer cells but also causing the unwanted side effect of killing taste buds. When the cancer treatments end, the taste buds gradually return, Hogan said....

T-ray breakthrough could make detecting disease far easier

...rrugating its surface with a series of grooves, in effect creating an artificial material or 'metamaterial' as far as the T-rays are concerned." "In this way, the T-rays can be focused to the tip of the wire and guided into confined spaces or used to detect small objects, with important implications for ...

Gladstone investigators identify a new protective action for the powerful anti-HIV factor, APOBEC3G

...to new chromosomal sites with potentially damaging effect involves copying DNA into RNA and then back into D...vation, we could both preserve the potent anti-HIV effect of the small form of A3G and the protective function of the large A3G complex against select mobile ...

Why do cold animals make bigger babies?

...ew approach, the team concluded that temperature's effect on reproduction is a byproduct of its effect on adult size. "This result could have widespread significance," says Angilletta. "Temperature deter...

Chronic jet-lag conditions hasten death in aged mice

.... In contrast, the light-cycle shifts had a marked effect on the survivorship of the old mice. While 83% of ...ngs here indicate that there may be a differential effect of mortality depending on the direction of the schedule shift--forward or backward. Schedule "advanc...

Math model predicts cancer behavior

...may be diminishing tumor burden, but the long term effect is to have a much nastier tumor than there was to begin with," Quaranta said. There is anecdotal evidence, he added, to support the idea that changes to the microenvironment result in a tumor with more or less invasive potential. Such manipulations o...

Gold nanoparticles prove to be hot stuff

...ts or applying force to molecules. But the heating effect could be useful in raising local temperatures in certain experiments, such as heating a protein just enough to allow scientists to watch it unfold, the paper suggests. ...

New approach to BSE successful in lab

... Institute in Martinsried. To do this they used an effect discovered by the US researchers Craig Mello and A...variant is PrP-C. PrP-C seems to have a protective effect in diseases like a stroke. Interestingly, mice which cannot produce any PrP-C appear to be completel...

Underweight women at greater risk of miscarriage

...egnancy reduced their risk by around 50%, with the effect being most pronounced among those taking folic acid or iron and multivitamins, which contain these. Eating fresh fruit and vegetables daily or on most days was also found to halve the odds of miscarriage and, in a finding that will delight pregnant w...

'Super' enzyme may lead way to better tumor vaccines

... enzyme Akt1 could provide the key to boosting the effect of tumor vaccines by extending the lives of dendri...they found that the "super" Akt1 also has a potent effect on human dendritic cells as well, although it has not been used to treat people yet. He expects t...

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