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Tag: "shows" at biology news

U of MN researchers reverse memory loss in mice

...reviously thought. The mice serve as a model that shows how the disease progresses as well as the possibility that memory loss can be reversed. The research suggests that the same reversal may be possible in humans, and that people with Alzheimer's disease may be able to recover memory and improve in cogn...

The synapse is a shotgun

...he brain and nervous system. The "nano-map," which shows the tiny spines and valleys resolved at nanometer ...e release site, but multiple release sites. And it shows alpha 3 receptors within the postsynaptic region, but alpha 7 receptors outside this region. Our mod...

Discovery of T-cell 'traffic control' boosts new drug promise

...s by blocking excess S1P action. The research also shows the promise of similar strategies to prevent rejection of transplanted organs and tissues without compromising essential immune defenses. The emerging view brings together research findings on S1P's effect on both the immune system and the blood-cir...

Industrial contaminants spread by seabirds in High Arctic, new Canadian study shows

...longer affecting terrestrial ecosystems. Our study shows that sea birds, which feed in the ocean but then come back to land, are returning not only with food for their young but with contaminants as well. The contaminants accumulate in their bodies and are released on land." The study took place at Cape V...

Monkeying around to improve organ transplantation

...of additional immunosuppressive agents. This study shows for the first time that anergic T cells generated ex vivo suppress renal allograft rejection in non-human primates. This may be an approach that could be used in human transplant trials. Title: Renal allograft rejection is prevented by adoptive tran...

Quantum dots provide a faster, more sensitive method for detecting respiratory viral infections

...their brightness for hours. The image on the right shows a culture labeled with green fluorescent protein while the image on the left shows a culture labeled with red quantum dots. Click on the start button to see how much the protein fades...

Rodent social behavior encoded in junk DNA

...s upon which rooms have the locks and our research shows that the distribution of the receptors is determined by the length of the microsatellites." Prairie voles with the long version have more receptors in circuits for social recognition, so release of vasopressin during social encounters facilitates so...

Team of international scientists departs today to discover the unknown in China's Himalayan region

...ussia and Australia combined. New hotspot analysis shows that an estimated 50 percent of all vascular plants and 42 percent of terrestrial vertebrates exist only in these 34 hotspots. Results from the expedition will be shared with numerous entities, such as the Chinese government, environmental organizat...

Proposal would allow wild animals to roam North America

...ives in a small area of northern Mexico. Evidence shows that animals near the top of the food chain play important roles in structuring ecological systems and maintaining biodiversity, according to the paper. These keystone species -- animals that contribute to diversity of life and which the rewilding re...

UIC developing drug for SARS

...searchers at the University of Illinois at Chicago shows promise in slowing replication of the virus responsible for severe acute respiratory syndrome, or SARS. Currently, there are no effective antiviral agents or vaccines for SARS, which killed almost 800 people in an epidemic in 2002-2003. On the basi...

Newfound roadblock to interferon effectiveness against malignant melanoma

...sor Schartl and his colleagues in Current Biology, shows that interferon actually activates STAT5 in melanoma cells but that under normal conditions, this does not interfere with the inhibitory potential of the drug. However, when cancer cells posses too much STAT5 activity to begin with, the further activ...

Once given 'no respect,' cells' tiny RNAS take driver's seat

...teins that are cells' workhorses. But new evidence shows that tiny bits of RNA not used to make proteins ac...n cancer -- one in humans, one in mice. One report shows that human tumors' microRNA "fingerprints" -- patterns showing which of the more than 200 known micr...

Aloe vera coating may prolong freshness, safety of fruits and vegetables

...oes not appear to affect food taste or appearance, shows promise as a safe, natural and environmentally-friendly alternative to conventional synthetic preservatives that are currently applied to produce after harvesting, the researchers say. Although a number of edible coatings have been developed to pres...

UCSD study clarifies insulin's role in blocking release of energy in patients with type II diabetes

...erides are stored in the adipocytes. The new study shows that insulin weakens the normal linkage between catecholamine receptors and the turn-on of PKA. “If insulin levels get too high for too long a time ?which happens in many patients with type II diabetes –the normal catecholamine signal that triggers ...

Colorful bacteria more dangerous

...y 18 issue of The Journal of Experimental Medicine shows that gold-colored bacteria are more harmful than their unpigmented relatives. A group of scientists led by Victor Nizet (UCSD, San Diego, CA) have discovered that the molecules that give certain bugs their color also help them resist attack by immune...

Traditional models underestimate extinction rates

... used to estimate the likelihood of extinction and shows that because they ignore a critical parameter in projecting risk, they underestimate extinction rates. Standard models for predicting extinction assume that population growth and decline are governed by random, or stochastic, variables. But few scie...

Weight control protein may yield antiobesity drugs

...nd type 2 diabetes, they found. The current study shows that SH2-B also regulates energy balance and body weight by enhancing leptin sensitivity in animals, Rui said. Mice lacking a functional copy of the SH2-B gene were smaller at birth than normal mice. After 5 weeks of age, however, the mice began gai...

Clearing jams in copy machinery

... Howard Hughes Medical Institute Investigator, now shows that one of these proteins, the beta sliding clamp...to two new duplex DNA molecules. The new research shows that two different DNA polymerases, the high fidelity Pol III replicase and the low fidelity Pol IV,...

Study uncovers dirty little secret: Soil emissions are much-bigger-than-expected component of air pollution

...y a University of Washington atmospheric scientist shows that, in some regions, nitrogen oxides emitted by ...rofessor of atmospheric sciences. The new research shows that the component from soil is about 70 percent greater than scientists expected. Instead of relyi...

UCSD discovery may provide novel method to generate medically useful proteins

...ho conducted much of the research. "Our discovery shows that nature has provided at least two completely different methods to generate a huge amount of protein variability, and it opens up a whole new platform for protein development." Other contributors to the paper were Jeffrey Lawton, Department of Ch...

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