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Tag: "results" at biology news

'Marathon mice' elucidate little-known muscle type

...replacement with glycolytic fibers. This, in turn, results in a further loss of resistance to fatigue, exacerbating the patient's condition in a downward spiral. The identification of PGC-1â as a potential mediator of the development of oxidative type IIX fibers suggests new ways to modulate muscle fiber typ...

Bypassing eggs, flu vaccine grown in insect cells shows promise

...in protecting people against the flu, according to results published in the April 11 issue of the Journal of ... percent. “Even though the study was small, the results are very promising,?said Treanor, who is professor of Medicine and of Microbiology and Immunology an...

Enhancing activity of marijuana-like chemicals in brain helps treat

...by Kadmus Pharmaceuticals in Irvine, Calif. - the results were striking. "The dopamine drug alone did a little bit but it wasn't great, and the drug that targeted the enzyme that degrades endocannabinoids basically did nothing alone," Kreitzer said. "But when we gave the two together, the animals real...

How appetite-stimulating brain cells work overtime during fasting

...by the animals following food deprivation. "Our results indicate that this mechanism is critical in sustaining an increased firing rate in these [hunger-stimulating] cells so that appetite remains elevated during fasting," Diano's group concluded. "Overall, our study provides strong evidence for an interp...

Smithsonian scientists discover new marine species in eastern Pacific

... are the relationships to other world regions? The results of this collection trip will be published in the scientific literature during the next several years, as taxonomists classify each organism. This adventure is far from over. The STRI team is ideally positioned to thoroughly sample the entire faun...

Stress may help cancer cells resist treatment, research shows

...and senior researcher on the project. The study results are reported on-line in the Journal of Biological ...earn to manage the effects," said Kulik. "And, the results point to the possibility of developing an intervention to block the effects of epinephrine." Kuli...

Scientists learn the origin of rogue B cells

...andom cutting and splicing of immunoglobulin genes results in an antibody that recognizes a component of one's own body. While the body has a built-in mechanism to correct these errant cells, the NIAMS researchers discovered this doesn't always work the way it was intended. "What happens is that, if the body...

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

...nges in oceanic chemical processes. Their research results are published in the March 7, 2007, issue of the journal Geophysical Research Letters. Oliver Wingenter of New Mexico Tech and his colleagues conducted a month-long field experiment. The researchers simulated present-day carbon dioxide concentration...

Male reindeer inflate a large air sac in the neck region to emit their hoarse rutting calls

...o his sexual prowess and reproductive success. The results of this research have recently been published in Journal of Anatomy. As in other species with harem-like mating systems, the voice organs of reindeer differ according to gender. Adult males have a much larger air sac than females and the young. I...

How trees manage water in arid environments

...d6306f9059b870583e03a193bd , she reports the first results of a study designed to characterize the surface exchanges of water and carbon dioxide in a forest in the Santa Catalina Mountains near Tucson, Ariz. Mountain forests are an important source of water for the rest of such semi-arid regions, and these f...

Children who sleep more weigh less

... 14, weekday sleep time fell to 8.5 hours. “Our results suggest that many American children are not sleepi...arch at Northwestern University. “In addition, our results suggest that encouraging parents to put younger children to bed earlier and allowing both younger an...

Remote sheep population resists genetic drift

...ther collaborators from France, have published the results of their research recently in the journal Proceedings: Biological Sciences. Haute Island sits in the Kerguelen Archipelago in the southern Indian Ocean and is more than 3,000 kilometres from its nearest port. The French government has used the is...

Hybrid molecule causes cancer cells to self-destruct

... it or joining it to other compounds. Usually, the results have been disappointing because the molecular partner added to butyrate to improve delivery to the cancer cells often produced unsafe side effects. In some of the less successful experiments, designed to avoid toxic side effects, researchers used ...

Are one-third of costly implanted heart devices unnecessary? New study suggests yes

...ts went on to receive ICDs, although the MTWA test results weren't used in the decision-making process. The p...no less likely to die than those with similar test results who didn't receive ICDs. "This is the first study to demonstrate that a subset of patients who m...

When your brain talks, your muscles don't always listen

...niversity of Massachusetts, recently published the results of a study on motor-unit firing rates in the Journ...re faster, from slower periods of activity. The results showed lower firing rates among older subjects versus younger subjects--a diminished ability of the ...

3-D ultrasound identifies women at risk for impending preterm birth

...ivery within five days of the measurement. "Our results suggest that examining the fetal adrenal gland at the time a woman is evaluated for symptoms of preterm labor, may have major beneficial clinical implications," said first author Ozhan Turan, postdoctoral fellow in the Department of Obstetrics, Gynec...

McBride shows DNA detective work with paper-eating bacteria that 'glide'

...to cell movement, or motility. "Loss of motility results in loss of ability to digest chitin," he says. "This suggests that motility and digestion of some carbohydrate polymers may be connected in both gliding microbes." McBride and his students have used F. johnsoniae to study the motility of gliding ba...

Misclassified for centuries, medicinal leeches found to be 3 distinct species

... are at least three distinct species, not one. The results appear in the April 10, 2007, online version of the journal Proceedings of the Royal Society B. "This raises the tantalizing prospect of three times the number of anticoagulants, and three times as many biomedically important developments in areas...

Stem cells act through multiple mechanisms to benefit mice with neurodegenerative disease

...nsistent with a therapeutic impact. Sandhoff results from a genetic mutation that reduces the body's su... in controlling and coordinating body movement and results in inexorable deterioration of the brain and spinal cord. Children suffering with Sandhoff rarely se...

Synthetic peptide targets latent papilloma virus infections

... researcher Christian Voitenleitner reported their results in the Dec. 28 issue of the journal Molecular Cell. Many of the 90-plus known genetic variants or strains of HPV cause warts in surface tissues, including the penis, vagina and cervix, but three variants - HPV-16, 18 and 31 - are notorious as the p...

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