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Tag: "humans" at biology news

UIC researchers show protein routes messages in nerve cells

...e chemical glutamate -- present in fruit flies and humans -- as their neurotransmitter of choice. "It's sti...d that a protein called coracle -- known as 4.1 in humans -- links receptors on a nerve cell's membrane to its internal structure, or cytoskeleton. Because 4....

Proposal would allow wild animals to roam North America

...g and dominating the ecosystem. For example, when humans almost wiped out wolves and grizzly bears in the United States, the species dynamics shifted. The loss of wolves and grizzlies allowed elk populations to soar. Elk, in turn, ate willows, a favorite food of beavers. As a result, along winter elk range...

Simple sea sponge helps scientists understand tissue rejection

...stem that, on a basic level, is similar to that of humans but much simpler. It's also a good organism for laboratory research, since its cells and cell adhesion molecules can be isolated with simple, fast, and non-disruptive methods and studied, and because its fingerlike structures make grafting experiment...

A vaccine to kill tapeworm

...ons of people have symptoms of the disease. While humans are the main host for T. solium, pigs are the intermediate host, and an essential step in the tapeworm's life cycle. If a pig eats the eggs then, as in humans, the eggs hatch in the intestine, burrow through the gut wall and travel to muscles, where ...

Can two killers make a cure?

...lts for publication. "The gap between monkeys and humans is much smaller than from mice to monkeys," says Ray Pickles, a gene therapy researcher at the University of North Carolina, Chapel Hill. "This could be in human trials pretty soon." Kobinger now plans a more extensive monkey trial to convince the U...

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

...isms that are responsible for foodborne illness in humans as well as food spoilage. Although the health effects of Aloe gel on human consumption were not directly measured in this study, the coating is believed to be safe, the researchers say. They note that Aloe vera gel has been used as a functional ...

NHGRI Selects 13 More Organisms for Genome Sequencing

...areas of biomedical research that may benefit both humans and animals,?said Mark S. Guyer, Ph.D., director o...ave contributed to the evolution and speciation of humans and other non-human primates. To identify chromosomal rearrangements, researchers will need to seque...

Possible treatment found for 'chemobrain'

...areas of biomedical research that may benefit both humans and animals,?said Mark S. Guyer, Ph.D., director o...ave contributed to the evolution and speciation of humans and other non-human primates. To identify chromosomal rearrangements, researchers will need to seque...

Visceral Leishmaniasis: Successful Vaccine Trial In Dogs

...mammals?blood. It can thus pass the parasite on to humans by a single bite. Once in the blood stream, L. inf...ected. The risks of transmission of the disease to humans would in this way be indirectly reduced. Up to now, several dog vaccines, mostly developed from who...

Targeting a key enzyme with gene therapy reversed course of Alzheimer's disease in mouse models

...he Salk. "This is a very important finding because humans are usually diagnosed when the disease has already progressed relatively far." But he warns that it is too early to make direct comparisons with the human disease, since mice ordinarily don't develop the symptoms of the disease unless they are genet...

Flies on speed offer insight into the roles of dopamine in sleep and arousal

...mplicated in numerous aspects of brain function in humans and other animals, and many of these brain functions involve the modulation of neuronal activity and the ability to assign proper saliency (or relevance) to sensory stimuli. ...

Neanderthal teeth grew no faster than comparable modern humans'

...n accelerated childhood compared to that of modern humans but that seems flawed, based on a new assessment b...erthals may not have been as different from modern humans as some researchers have thought. The study by Debbie Guatelli-Steinberg, assistant professor of a...

Gaining ground in the race against antibiotic resistance

Antibiotic resistance has put humans in an escalating 'arms race' with infectious bacteria, as scientists try to develop new antibiotics faster than the bacteria can evolve new resistance strategies. But now, researchers have a new strategy that may give them a leg up in the race -- re...

Monkeys understand numbers across senses

...o represent number abstractly," she said. "When we humans apply the word 'three' to sounds or visual images, we're using language to link these different sets from different modalities. And the question has been whether an animal without that kind of language based representation can still notice or represe...

Carnegie Mellon cyLab researchers work to develop new red tide monitoring

...The red tide algae are also potentially harmful to humans if ingested through unmanaged shellfish. On the wo...c healthcare to handle thousands of cases in which humans ingested shellfish poisoned by red tide between 1987 and 1992, according to NOAA's 2005 Economic Sta...

Clearing jams in copy machinery

Bacteria and humans use a number of tools to direct perhaps the most i...ve known DNA polymerases (higher organisms such as humans have more). As the ring-shaped beta sliding clamp works its way along the DNA double helix, a networ...

The roots of civilization trace back to ... roots

...ve to seven million years ago, when the lineage of humans and chimpanzees split, edible root plants similar ... may have contributed to the initial split between humans and the other apes. Laden and Wrangham's paper is available at www.sciencedirect.com ...

“Hitchhiking?Viruses as Cancer Drug Delivery System

...ve to seven million years ago, when the lineage of humans and chimpanzees split, edible root plants similar ... may have contributed to the initial split between humans and the other apes. Laden and Wrangham's paper is available at www.sciencedirect.com ...

Researchers report breakthrough against world’s deadliest viruses

...ver symptoms that are similar to those observed in humans infected by these viruses. Demonstrating that these vaccines are safe and effective in monkeys is a promising indicator of their real potential for use in humans. "When you see the tragedies these viruses cause, it's very frustrating that we can't d...

New technique could alter field of mouse genetics

...0 of the estimated 25,000 genes shared by mice and humans have been analyzed in detail, Xu said. A reliable gene-transposing tool could make that job much easier and quicker. Xu and his colleagues at Fudan University in Shanghai, China, began their studies with a transposon called piggyBac. With the help o...

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