Tag: "animals" at biology news

Biggest Acoustics Meeting Ever

...ins, inorder to gain a better understanding of how animals encode communicative signals in their auditorysystems. In paper 4aPP1, Bradford May of Johns Hopkins University ( bmay@welchlink.welch.jhu.edu )will discuss a study of how cats convert vowel sounds into patterns of nerve-cell firings for varying leve...

Protein Implicated In Multiple Sclerosis

...heprotein in myelin and, when injected, also gives animals MS symptoms, Trotterhas shown. The protein has been largely ignored, however, because it doesn'tdissolve in water and therefore is hard to study. In 1991, Trotter's group was the first to show that human white bloodcells or lymphocytes recogn...

Study Highlights the Use of Viruses as Tools for Material Science and Drug Delivery

...ch 1) "are incredibly host-specific" and donot use animals as hosts; 2) are routinely and safely eaten by humans as part ofvegetable material; and 3) have had their genetic material removed, leaving onlya coat which can be used as a container. As such they pose no health threat tohumans. In fact, so...

Antimicrobial Resistance: Issues And Options

... of antibiotics in chicken, cattle, and other food animals and products, and their potential impact on human health, will be completed by the National Research Council later this year. In addition to preserving the effectiveness of the current groups of antibiotics, incentives are needed to dev...

Remarkable Skull Of Predatory Dinosaur Unearthed On Madagascar

... "If so," Sampson added, "dinosaurs and otherland animals may have been able to disperse across the vast distances betweenSouth America and India-Madagascar via an intervening Antarctica." -NSF- NSF is making a transition to a new form of electronic distribution of newsmaterials, Custom News Service, to r...

Scientists Unearth Remains Of A Predatory Dinosaur In Madagascar

... "If that is the case, we would expect the animals in South America andAfrica to be more closely related. But this animal found in Madagascar -- anisland off the southeast coast of Africa -- is more closely related to animalsfound half way around the world." The researchers suspect that a la...

Clusters, Computers And The Human Brain

...ups. It then further separated the three different animals and the two different cars. In another task, the algorithm was asked to analyze the sounds of the alphabet as pronounced by 300 people, with the sound of every person's voice represented as a combination of more than 600 acoustic parameters. Withou...

ASU Scientists Join NASA Astrobiology Institute

...tudying simple associations of microbes,plants and animals to understand the evolution of ecosystems under differentconditions of energy and nutrient availability. An interdisciplinary group including planetary geologists Philip Christensen,Ronald Greeley and exobiologist Farmer will continue the expe...

Social Disruption Leads To Shorter Survival In Monkeys With AIDS

...e simian AIDS virus developed AIDS faster than the animals that did not experience separations. In addition, among those animals that experienced one or two changes in housing after inoculation, the closer the time of the inocula...

Toxic Protein That Interferes With Brain Signals May Trigger Onset Of Alzheimer's Disease

...levated amounts of Fyn. In brain slices of animals lacking the Fyn gene, ADDL-evoked cell deathdid not occur, showing that the mechanism through which ADDLs exert theirtoxicity is blocked by removal of Fyn. Furthermore, blocking ADDL binding sitesalso afforded neurons protection against the toxic eff...

Increasing Frequency Of El Nino Takes Toll On Northern Hemisphere's Only Penguins

...n usual and too warmto sustain the food supply for animals that normally feed in the water. Some ofthe marine iguanas that normally forage in intertidal basins were observedfeeding on land. "The islands were very lush, green and verdant, which is unusual," Boersma said."It's like the ocean is the desert righ...

Avigen's Gene Therapy Approach Shows Promise In Treating Hemophilia B With Single Intramuscular Administration

...r containing the gene forfactor IX was given. The animals showed long-term production of factor IX in adose-related manner with plasma levels of factor IX being increased forapproximately nine months with observations continuing. Researchers observed apartial correction of the whole blood clotting time and...

Gene May Hold Key To Treating Life-Threatening Cholesterol

...s leading to heart attacks. "Without LXR-alpha the animals completely lose their ability to deal with dietary cholesterol," said Dr. David Mangelsdorf, senior author of the paper, associate professor of pharmacology and Howard Hughes Medical Institute (HHMI) investigator. "We believe that this may work the s...

Malaysian State Of Sarawak Bans Commercial Hunting Of Wildlife

...unities. The new law ends all commercial sales of animals or animal productstaken in the wild. Up to this point, the wild meat trade was considered one ofthe greatest factors contributing to the decline of Sarawak's wildlife. Otheraspects of the new law will make it easier to establish sanctuaries, and to...

Puppy Parasites

..., they found Cryptosporidium in 7.3 percent of the animals and Giardia in 11.7 per cent. Samples contained adultparasites, eggs, larvae, or highly resistant cysts. Ninety percent of the dogstesting positive for Cryptosporidium were puppies 30 weeks old or younger, whilefor Giardia, puppies accounted for 76 p...

USGS Responds to Amphibian Declines With Program In Great Smokey Mountains National Park

... amphibians are among the most important groups of animals both as prey and as predators, and are therefore an important indicator of ecological health," said Dodd. Researchers have long maintained that certain traits of amphibians--such as their permeable skin, their ability to live on land and in the water...

Gene Therapy May Suppress Uterine Fibroids

...an reported the results of subsequent tests on lab animals during the annual meeting of the American Society of Gene Therapy in Seattle on Friday (May 29). The U-M researchers' next step is to investigate the effectiveness of various systems for delivering the genes in the body. Christman estimates it wil...

Engineered Neo-Organs For Bladder Replacement

.... After their initial operation and recovery, the animals were sacrificed at 1,2,3,4,6 and 11 months. The investigators performed gross pathology, along with histological and other analyses. Their results showed that in the tissue engineered replacement bladders, the average bladder capacity was 95% of th...

Colorado State Research Indicates Two TB Vaccines Show Promise

...gainst virulent infection that would normally kill animals in a few weeks," Orme said. "Both also prevent tissue destruction and actual disintegration of lung tissues seen in people with active TB." While not at present as effective as BCG in animal models, Orme thinks either or both vaccines may eventually...

Interleukin-12 Helps Control Mycobacterium Avium Infection

...sToxoplasma and Histoplasma. Previous research in animals has shown that theseinfections also respond to IL-...sequential doses. After a two-dayrest period, the animals received another three doses on the same schedule. Control animals were given saline alone. The inv...

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