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Tag: "kind" at biology news

Bird Brains Show How Trial and Error May Contribute to Learning

... the brain has as part of its job introducing that kind of variability." Kao began with an experiment to stimulate the region of the forebrain called LMAN (lateral magnocellular nucleus of the anterior nidopallium). In the avian brain, LMAN receives input about complex movements from the basal ganglia an...

Examination of internal 'wiring' of yeast, worm, and fly reveals conserved circuits

...ed cells," said Ideker. "Ultimately, we think this kind of a systems biology approach will have a very beneficial impact on drug design and human health." ...

New Treatment Rivals Chemotherapy For Lymphoma, Study Finds

...ntially takes only one week to complete, rival any kind of treatment that's been used for follicular lymphoma, including chemotherapy regimens that take months to complete. It's very well-tolerated by patients and we saw complete remission in the majority of patients lasting for years," says lead study au...

Wisconsin researchers identify sleep gene

... than they thought it would. "Humans have the same kind of genes and potassium channels. And we know that slow waves must be generated by changes in the excitability of neuron cell membranes," Cirelli says. "Potassium changes may have a huge affect on sleep in humans." Sleep is a highly complex activity...

Norovirus, AIDS vaccine and Hepatitis Virus

...ection frequency. "This study is the first of its kind to indicate that NoVs may be a major cause of illness among United States travelers who experience TD during extended stays in developing countries," say the researchers. The high frequency of NoV infection among TD cases examined in this study sugge...

Researchers devise way to mass-produce embryonic stem cells

...ic stem cells are pluripotent ?they can become any kind of cell in the body, while adult stem cells usually develop into a type of cell based on the kind of tissue that they originated from. The bioreactor has a chamber that holds the polymer threads on...

Controlling protein diversity

...ts in protein production, they also determine what kind of RNA (a kind of genetic template for the protein) is made as well as what kind of protein results. "This subgrou...

NIH Calls on Scientists to Speed Public Release of Research Publications

... NIH-funded research. The policy ?the first of its kind for NIH ?calls on scientists to release to the public manuscripts from research supported by NIH as soon as possible, and within 12 months of final publication. These peer-reviewed, NIH-funded research publications will be available in a Web-based a...

Low level of extinction during ice age linked to adaptability

...abase is the first ever; no other database of this kind exists for any interval of geologic time, from which to study geographic patterns of macroevolution," Powell said. According to Powell's analysis, brachiopods that lived primarily near the equator suffered the highest extinction rates and did not re...

WHO Warns Of Increased Risk Of Vector-borne Diseases In Tsunami-affected Areas

...ome areas, led to environmental disturbance of the kind that would typically be associated with increased mosquito breeding. While pools of salt water would not support mosquitoes by themselves, but once diluted by rains, they can become ideal breeding places for the malaria vector. Drinking water storage...

Harmful chemicals may reprogram gene response to estrogen

...of disease," said Walker. "We are looking at a new kind of gene-environment interaction that determines who gets cancer and who doesn't." According to Walker, the increase in frequency and size of the uterine tumors is due to DES' ability to influence estrogen, a female hormone that is involved in promot...

Some Brain Cells 'Change Channels' To Fine-tune The Message

... able to change what they allow in by swapping one kind of channel, or membrane opening, for another. Doin...nels that let charged calcium ions in with another kind of channel that keeps calcium out. If muscle-controlling nerve cells can do the same thing, forcing ...

Nano-bumps could help repair clogged blood vessels

.... Now the biomedical engineers have seen the same kind of increased attachment for endothelial and vascular smooth muscle cells lining the insides of arteries, said Thomas Webster, an associate professor of biomedical engineering at Purdue. The stents are small metal scaffolds that are inserted inside a...

Medical whistleblowers speak out

...is risk "would never be detected in studies of the kind that we routinely submit and are the basis for approval. These drugs are essentially out there now, unlabeled, unnoticed, all beneath the radar." Lenzer's account captures some of the ways in which industry may influence not only which drugs get app...

Anammox bacteria produce nitrogen gas in oceans' snackbar

... cold water off the coast of Namibia and acts as a kind of snackbar in the tropical ocean, which is visited by many animals including giant whales. The newly discovered anammox bacteria remove ammonium from the ocean, which as a result can not be taken up anymore by other organisms. Algae and cyanobacteri...

Turning viruses into allies against cancer

...transport" protein attached to the virus acts as a kind of homing beacon for radioactive iodine, providing a second line of attack against the cancer cells, technically known as radio-virotherapy. "These results clearly demonstrate the high potential of this modified virus to serve as a novel vector for ...

Protein helps regulate the genes of embryonic stem cells

...and we really have very little information on that kind of technology," said Magnuson. In addition to Magnuson and Montgomery, department of genetics authors include Della Yee, lab technician; Andrew Chen, undergraduate researcher; and Drs. Sundeep Kalantry and Stormy J. Chamberlain, postdoctoral fellows...

A little stress gives beneficial oomph! to immune system

...rief spell of psychological stress, similar to the kind of stress a person anticipating or undergoing a dental or surgical procedure may feel. The other group of mice ?the non-stressed group ?remained in their home cages. Once the stressed mice were removed from the tubes, the researchers implanted tiny ...

One gene links newborn neurons with those that die in diseases such as Alzheimer's

...center region of the brains of 19 zebra finches, a kind of songbird native to Australia that has long been used in studies of birdsong. Since replaceable neurons sit side-by-side with neurons that are not replaced, the first step was to label the two kinds of cells in order to tell them apart. The replac...

Man-made wetland's effectiveness similar to natural marsh

...hosphorus and nitrate concentrations ?close to the kind of decrease we typically see in a natural wetland,...itsch said. "So it reverted pretty quickly to that kind of ecosystem when it had the chance." Over the two-year study, the wetland reduced concentrations o...

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