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Tag: "effects" at biology news

In obesity, brain becomes 'unaware' of fat

...substantially. His team has plans to examine these effects in overweight primates, whose digestive systems have much more in common with people. The findings do “strongly support the case?that leptin resistance in critical brain regions is a cause of obesity induced by diet, the researchers concluded. The...

Study shows isolation of stem cells may lead to a treatment for hearing loss

...idemic affecting our younger generation though the effects won’t show until it is too late to treat. In addition to loud noise, certain cancer drugs or genetic factors can cause hearing loss in humans due to loss or faulty development of the sensory ‘microphones?(hair cells) inside the ear ?the cochlea. Los...

Aspirin discovery may improve cancer treatments

...h, led a collaborative study that investigated the effects of salicylates on the inhibition of protein synthesis. "Our research showed that treating human cells with salicylates results in the phosphorylation of the translation initiation factor eIF2Ą, thus inhibiting protein synthesis," Professor Willi...

New report: Explosive growth changes salmon industry

...n catches has had wide-ranging economic and social effects on wild salmon fishermen and fishing communities. "Wild salmon could never supply the market demand being met by farmed salmon. A fundamental point of the report is that the debate should not be about wild versus farmed, but whether each method ...

Vitamins: Science doesn't always match policy

...abeling of vitamin and mineral supplements and the effects of these products on nutrient adequacy as well as ...nt of more and better surrogate markers of adverse effects will be critical. Dose-response assessments of safety are badly needed for updating recommended safe...

Tropical forests -- Earth's air conditioner

... white covering of snow. The work simulates the effects of large-scale deforestation, and accounts for the positive and negative climate effects of tree cover at different latitudes. The result, which appears in this week’s early online edition ...

The penalty of having a sister -- why sibling sex matters for male saiga antelopes

...tists with an ideal opportunity to investigate the effects of mixed-sex twin litters on size and development, because there are a high proportion of twin births in the population, and because the optimal birth weight for males and females of the species are dramatically different. The researchers' study o...

Individual differences in a clock gene predict decline of performance during sleep deprivation

...3, makes some people particularly sensitive to the effects of sleep deprivation. The findings, reported by An...emonstrated. An additional finding was that the effects of this gene on performance may be mediated by its effects on sleep. When the volunteers were allowe...

New player in commitment to life as a fat cell

...here have not been studies designed to explore the effects of XOR inhibitors on body weight, and in light of our findings, such studies may be warranted," they added....

Woman's Day and For Womens of Science

...ry in the atmosphere, the socioeconomic and health effects of mercury pollution on human populations, and its effects on the world's fisheries and wildlife. Five other major findings in the declaration were: On ...

Mercury contamination of fish warrants worldwide public warning

...ry in the atmosphere, the socioeconomic and health effects of mercury pollution on human populations, and its effects on the world's fisheries and wildlife. Five other major findings in the declaration were: On ...

Bypassing eggs, flu vaccine grown in insect cells shows promise

...dose creating a stronger immune response. The side effects of the vaccine were the same as those usually reported from a typical flu shot ?mainly mild arm pain. Then, in the months that followed, there were seven cases of flu in the group that had not received the vaccine, compared to two cases in the gro...

NT researchers discover breakthrough in malaria treatment

...gh in the battle to treat Malaria ?a disease which effects 40 per cent of the worlds population. There are two major strains of malaria effecting humans, P. vivax and P. falciparum. Although attention focuses on the more virulent P. falciparum, vivax malaria causes a huge amount of illness in the tropical...

Prehistoric origins of stomach ulcers uncovered

...nds of years our ancestors have been suffering the effects of this bacteria but it also opens up new possibilities for understanding early human migration. By showing that Helicobacter pylori emerged from Africa at the same time as early humans it makes it easier to examine some of the controversial question...

Stress may help cancer cells resist treatment, research shows

...ostate cancer," said Kulik. "These drugs block the effects of epinephrine, which could explain the finding. ...ibility of developing an intervention to block the effects of epinephrine." Kulik is now studying blood samples of prostate cancer patients to determine if ...

Scientists uncover link between ocean's chemical processes and microscopic floating plants

...tal changes we have not even begun to think about, effects beyond acidification of surface seawater and greenhouse warming," said Donald Rice, director of NSF's Chemical Oceanography Program. Combining future experimental and modeling efforts will lead to a better understanding of the feedback systems betw...

Misusing vitamin to foil drug test may be toxic; plus, it doesn't work

...adults and two adolescents who suffered toxic side effects from taking large amounts of niacin, also known as vitamin B3, in mistaken attempts to foil urine drug tests. Both adult patients suffered skin irritation, while both adolescents had potentially life-threatening reactions, including liver toxicit...

Soft-cell approach cuts animal tests

...ollutants are already known to have adverse health effects on the respiratory system of workers. Increasingly...e interactions between chemical exposure and toxic effects of single chemicals and chemical mixtures. ...

Lithium builds gray matter in bipolar brains, UCLA study shows

...But it does suggest that lithium can have dramatic effects on gray matter in the brain," she said. "This may be an important clue as to how and why it works."...

Synthetic peptide targets latent papilloma virus infections

...viruses, a drug that blocks it shouldn't have side effects in humans. The strategy the researchers used to block HPV spread might also prove useful against other infectious viruses, such as the related Epstein-Barr virus, the cause of mononucleosis and an aggressive form of lymphocytic leukemia called Burk...

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