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Tag: "many" at biology news

Studies to find better ways to preserve human eggs, ovarian tissue under way

...d to induce ovulation could be problematic because many breast cancer cells have estrogen receptors. As...etter option for ovarian tissue and eggs. In fact, many in vitro fertilization programs, including the one she directs at MCG Health System, are moving towa...

Millions of children denied drug that costs less than $3 a year

...crimination. Regrettably, most of these people, many of whom are children, could return to a normal life by taking a single daily dose of a drug (phenobarbital) that costs less than $3 (£1.5; €2.2) each year. The World Health Organisation recommends phenobarbital as the treatment of choice in resour...

In mice, drug protects against diabetes and atherosclerosis

... elsewhere describe how a designer compound mimics many of these protective effects in mice, conferring su...tion of insulin, raising the risk of diabetes. For many decades, aP2 was believed to act only in fat cells. In 2001, Hotamisligil and a collaborator discove...

Columbine flowers develop long nectar spurs in response to pollinators

...that evolution acts in a more one-sided fashion in many plants: the plants evolve nectar spurs to match the tongue-lengths of the pollinators. Then the process stops, and only starts again when there is a change in pollinators. Whittall and Hodges proved this idea by testing the columbine genus Aquileg...

Longer treatment benefits sleep apnea patients

...ecause they often find the CPAP device cumbersome, many patients do not use it consistently or for long enough periods while sleeping. In the current study, for example, patients used CPAP on average about 5 hours a night. The researchers found that although daytime sleepiness could be improved after 4 h...

Brain holds clues to bipolar disorder

...wed that disruptions in these pathways resulted in many of the core symptoms of bipolar disorder and explained many other observations about the disease. The findings suggest a new avenue for treating the underlying ...

Ancient DNA traces the woolly mammoth's disappearance

...e very concerned about the potential extinction of many existing large mammals, studying those that occurred in the geologically recent past can provide many insights,” Lister said. “Our work, together with that of others, shows that the conditions for extin...

New study finds genetically engineered crops could play a role in sustainable agriculture

...analysis of large quantities of existing data from many individual experiments can provide a greater understanding of a complex issue. The project is enhanced by the creation of a public database, Nontarget Effects of Bt Crops, developed by NCEAS ecoinformatics expert, Jim Regetz, that will allow other s...

Brightening prospects of using fluorescent nanotubes in medical applications

...s currently working on the next step necessary for many biomedical uses: finding a way to attach molecules to the surface of the nanotubes that will allow them to bind to specific biological targets. The trick is to do so without dimming or extinguishing the nanotubes’ delicate fluorescence. An example ...

New collaborative research reveals chimpanzees can sustain multiple-tradition cultures

...stain the same kind of multiple-tradition cultures many researchers believe exist in the wild, providing f...t communities of chimpanzees across Africa vary in many behavior patterns, indicating they have cultures specific to each community. In the wild, however, i...

Stroke study sheds light on left-right brain divide

...lf-monitoring” function may play a crucial role in many day to day situations. For example, when preparing a meal we often have to keep track of several tasks at once and make sure we perform each one correctly and at the right time.’...

Breakthrough developments in rheumatoid arthritis reported

...cientific community. A key barrier to progress for many geneticists is the costs of obtaining genetic data from normal control populations to use for comparison to the genetic variation seen in people with disease. In collaboration with the Children’s Hospital of Philadelphia, The Feinstein will rele...

Rising skin cancer rates are more likely to affect wealthy people, says 12-year review

... all female cancers. “These findings show that many patients will have more than one skin cancer, highlighting the need to analyse both patient numbers and sample numbers to provide an accurate picture of cancer levels” says co-author Dr Susannah Hoey from the Dermatology Department at the Royal Victo...

U-M researchers discover gene switched off in cancer can be turned on

...argeted cancer therapies with potential to benefit many different cancer types. Popular new drugs such as Herceptin and Gleevec more effectively treat cancer by targeting genetic mutations that express themselves in large amounts, causing cancer to develop. But cancers also arise because genes that contr...

Newly discovered antibody may be body's natural defense against Alzheimer's

...ked memory loss and brain cell death. This has led many scientists to speculate that oligomers may be the main culprit in Alzheimer's and therefore a prime target for a new generation of disease-modifying treatments. To further confirm that these natural antibodies bind with oligomers, Dr. Relkin and ...

Massive herds of animals found to still exist in Southern Sudan

...esources, including elephants, are still intact in many areas, but also urgently need strong measures to c...of extrapolation, they calculated estimates of how many animals there were on a landscape. To their surprise, the results in Boma showed little difference...

Study shows lizard moms dress their children for success

...r. Maternal influences like this probably occur in many species, but are very difficult to detect, Sinervo said. "Maternal effects are a nebulous thing to study, because you know there are genes for these traits, and it's really hard to tell the maternal effects apart from the effects of the genes," he...

Women well informed about breast cancer, yet lacking knowledge about current treatments

...y know at least a fair amount about breast cancer, many remain unaware of the important recent progress ma...ment. “These survey results suggest that many women still lack essential disease treatment information, which reinforces the need for women to edu...

Progress toward an antitumor vaccine

...s, because the protein portion of the molecule has many reactive groups that are attacked in the coupling reaction. “In addition,” says Kunz, “many of the structures that make suitable anchors are themselves highly immunogenic, which can suppress the immune response against the true target, the glycoprote...

Small, self-controlled planes combine plant pathology and engineering

...bacterium doing 100 meters above Kentland Farm" In many of our other samples, we have found organisms that...se microbes may thrive only in the atmosphere, and many of them may be new to science.” This and other fascinating results have led Schmale to hypothesiz...

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