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Tag: "indicate" at biology news

In mice, drug protects against diabetes and atherosclerosis

...se. While the genetic variant studies in humans indicate that a drug like the one used in the current experiments is likely to work in humans, Hotamisligil said that this remains to be proven. The next step is to perform more detailed toxicity tests in animals, and then move toward human testing. The im...

Ancient DNA traces the woolly mammoth's disappearance

...those of the other species.” Their genetic data indicate that Siberian mammoths expanded from a small base some time before sixty thousand years ago. Moreover, they found two distinct genetic groups, implying that mammoths had diverged in isolation for some time before merging back into a single population...

Brightening prospects of using fluorescent nanotubes in medical applications

..., at least so far, experiments that have been done indicate that they do not damage living cells. By comparison, quantum dots, which are a popular alternative fluorescent tagging technology, contain cadmium, which is highly toxic, and so may not be appropriate for “in vivo” applications. Nanotube fluoresc...

Salty oceans provide early warning for climate change

...orth Atlantic circulation. Models and data both indicate that these changes in ocean circulation occur over very short time-scales, usually in less than a decade or two. Ocean water can’t possibly travel this fast (it takes nearly a century for a parcel of water to move from the South Atlantic to the North...

Sun exposure early in life linked to specific skin cancer gene mutation

...ife (between ages 50 to 60 years old). The results indicate that different subtypes of melanoma are associated with different risk factors "The findings suggest that melanoma subtypes have different causes. This is important for learning more about how to prevent and treat skin cancer," said Dr. Nancy Thom...

Study shows lizard moms dress their children for success

...s," Lancaster said. "Orange-throated neighbors may indicate a trend in the frequency of orange-throated lizards within the population or in the overall population density." According to Sinervo, the density of the lizard population is probably a critical factor. At high densities, the aggressive orange-thr...

College students who pull 'all-nighters' and get no sleep more likely to have a lower GPA

...ormance worsens. The data collected in this study indicate that the use of a single night of total sleep deprivation is not an effective practice for achieving academic goals," said Pamela Thacher, PhD, of St. Lawrence University in Canton, New York, who authored the study. The findings are based on inter...

New findings challenge established views on human genome

...A that is not biologically active. The new data indicate the genome contains very little unused sequences a...earchers, this lack of evolutionary constraint may indicate that many species’ genomes contain a pool of functional elements, including RNA transcripts, that pr...

Exploring the dark matter of the genome

...genes. We identified patterns of codons that might indicate a gene splice-site or a promoter, for example. We mapped experimentally derived evidence of messenger RNAs back to the matching heterochromatin sequence. And we looked for sequences similar to ones already known from protein databases." These standar...

Runners -- Let thirst be your guide

...nd Metabolism at Georgetown. “The data clearly indicate that EAH is caused by excess drinking during endurance exercise activities, and that it can be prevented by limiting fluid intake while exercising, he says. But despite this knowledge, Verbalis points out that “unfortunately, we are not seeing this c...

Scientists close in on missing carbon sink

... dioxide taken just above ground level. The models indicate that northern forests absorb about 2.4 billion ton...eforestation is occurring rapidly. "Our results indicate that intact tropical forests are taking up a large amount of carbon," Stephens explains. "They are h...

Definitive evidence found of a swimming dinosaur

... of water. Ripple marks on the surface of the site indicate the dinosaur was swimming against a current, struggling to maintain a straight path. "The dinosaur swam with alternating movements of the two hind limbs, a pelvic paddle swimming motion," said Costeur. "It is a swimming style of amplified walking ...

Common treatment for methamphetamine overdose may damage brain cells

... The findings, derived from experiments with rats, indicate that only the combination of the medication, haloperidol, and methamphetamine causes the destructive effects, not either one alone. Senior author Bryan Yamamoto, PhD, and his team at Boston University School of Medicine suspect the damage results fro...

Pistachios lower cholesterol, provide antioxidants

...related with a reduction in oxidized LDL which may indicate that the lutein in pistachio nuts improves the risk of cardiovascular disease by reducing serum oxidized LDL. "Our study has shown that pistachios, eaten with a heart healthy diet, may decrease a person's CVD risk profile," says Dr. Penny Kris-Eth...

Arctic ice retreating more quickly than computer models project

...nhouse gases in the atmosphere. Whereas the models indicate that about half of the ice loss from 1979 to 2006 was due to increased greenhouse gases, and the other half due to natural variations in the climate system, the new study indicates that greenhouse gases may be playing a significantly greater role. ...

WHO data confirms low level of resistance to Tamiflu

....32%) 586 1 (0.17%) These preliminary findings indicate that a low frequency of oseltamivir resistance was present in community isolates during influenza seasons in which there had been substantial oseltamivir use in Japan. Low frequencies of oseltamivir resistance in influenza A viruses ( Resistance to...

Dealing deadly cancers a knockout punch

...le sarcomas and melanomas. Recent studies also indicate that Reolysin works synergistically with standard anti-cancer drugs, providing significantly stronger responses than either agent alone. In addition, other studies completed in the past year have shown Reolysin has the ability to prime patients'...

Female-led infanticide in wild chimpanzees

... The authors point out that these new observations indicate that such female-led infanticides are neither the ...nge. According to the authors, the new findings indicate that although low-level aggression between female chimpanzees is more commonly seen, the observed in...

Do fruit flies have free will?

...avior" Sugihara said. "The results of our analysis indicate a mechanism which might be common to many other animals and could form the biological foundation for what we experience as free will". Our subjective notion of "Free Will" is an oxymoron: the term 'will' would not apply if our actions were complet...

Discovery of 'master switch' for the communication process between chloroplast and nuclei of plants

...or ?have at least three different signals that can indicate a plant is under stress. Given the challenges the environment will be facing over the coming decades through global warming, this puzzle piece has become more pressing for plant scientists, who hope that understanding the stress responses of plants ...

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