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Tag: "humans" at biology news

Elephants imitate truck noises, other animals

...al of their species, the first known example after humans of vocal learning in a non-primate terrestrial mam... an open communication system in which animals and humans develop new signals with shared associations. Recent playback experiments conducted by Karen McComb ...

Elephants imitate sounds as a form of social communication

...al of their species, the first known example after humans of vocal learning in a non-primate terrestrial mam... an open communication system in which animals and humans develop new signals with shared associations. Recent playback experiments conducted by Karen McComb ...

Ants Genetic Engineering Leads To Species Interdependency

...species. Millionsof years before the first modern humans evolved, ants were practicingmany of the social innovations we consider to be our own: division oflabor, agriculture, and even slavery.Indeed, these traits have been taken to their extreme in many antspecies, such as the case of slavemaker ants, whic...

Gene Therapy For Parkinson's Disease Moves Forward In Animals

...ease. But its use has been debated since trials in humans ended last year without showing clinical improvements. Amgen, the world's largest biotechnology company, conducted the trials and later halted use of the drug because of safety concerns, creating an outcry from hopeful Parkinson's patients. But the ...

Alcohol's effects on gene expression in the central nervous system

...motivated behaviors," noted McBride. "Studies with humans indicate that this brain region is sensitive to the effects of heavy alcohol drinking and repeated withdrawals. The microarray technique provides insight into cellular changes that occur over time with chronic alcohol drinking and repeated withdrawal...

New SARS Protein Linked To Important Cell Doorway

... jumped from its still unknown animal reservoir to humans in late 2002, it caused approximately 800 deaths and 8,000 infections in several Asian countries. Months before SARS became available for direct study, Washington University researchers used the SARS genome, finished a mere half-year after the first ...

NIAID Initiates Trial of Experimental Avian Flu Vaccine

...vian influenza, since 1997 when the first cases in humans were reported. The initiation of this vaccine tria...rmed cases of and 46 deaths from H5N1 infection in humans reported to the World Health Organization. To date, there has been a small number of cases where hum...

Scientists document complex genomic events leading to the birth of new genes

...P gene cluster may help to explain what sets apart humans and other primates from the rest of the animal kin...and is the only cytogenetic distinction separating humans from apes. At the molecular level, however, the differences among the species are much more complex....

Zebrafish may hold key to understanding human nerve cell development

...- the specialized neurons found in the inner earof humans that make hearing possible. This research increase...y be possibleto regenerate these types of cells in humans one day," said TatjanaPiotrowski, Ph.D., assistant professor of neurobiology and anatomy atthe Unive...

Harmful Bacterium Commonly Found in Poultry May Survive Refrigeration and Frozen Storage Combined

...- the specialized neurons found in the inner earof humans that make hearing possible. This research increase...y be possibleto regenerate these types of cells in humans one day," said TatjanaPiotrowski, Ph.D., assistant professor of neurobiology and anatomy atthe Unive...

GenMAPP 2.0 released

...- the specialized neurons found in the inner earof humans that make hearing possible. This research increase...y be possibleto regenerate these types of cells in humans one day," said TatjanaPiotrowski, Ph.D., assistant professor of neurobiology and anatomy atthe Unive...

Gene vaccine for Alzheimer's disease shows promising results

... When we get to human studies, wehope to show that humans can make human antibodies against the amyloidas well."Current treatments for Alzheimer's disease focus on the symptoms sinceno therapies have been clinically proven to slow or prevent progressionof the disease. Amyloid protein deposits are present in...

Scientists identify molecular events that drive cell senescence

... When we get to human studies, wehope to show that humans can make human antibodies against the amyloidas well."Current treatments for Alzheimer's disease focus on the symptoms sinceno therapies have been clinically proven to slow or prevent progressionof the disease. Amyloid protein deposits are present in...

Estrogen-like Component of Plastic Stimulates Growth of Certain Prostate Cancer Cells

...thsome arguing that exposure to the chemical among humans is safe, withothers contending that it may promote the growth of human tumor cellsand alter the growth and development of animals....

Beyond lithium for bipolar disorder

... (day-night) behavior--both also characteristic of humans with bipolar disorder. Also, in animals, lithium has been shown to affect such circadian behavior. The protein also has been found to affect the activity of a key neurotransmitter, dopamine, in the brain, said the researchers. What's more, they found...

Duke Chemists Isolating Individual Molecules Of Toxic Protein In Alzheimer's, Parkinson's Disease

...of formation of these fibrils within the brains of humans and other animals, said Akhremitchev, who is an assistant professor of chemistry. In the brain, "monomers of all kinds are suspended in a soup in equilibrium," he said. Given that the components of amyloid fibrils measure only billionths of a meter ...

New RNA polymerase discovered in plants

...r DNA methylation, higher organisms from plants to humans have a host of developmental problems, from dwarfing in plants to tumor development in humans to certain death in mice. Pikaard thinks that Pol IV helps make siRNAs that then direct DNA methyla...

Bird Brains Show How Trial and Error May Contribute to Learning

...egrative Neuroscience. A similar brain pathway in humans may explain how children learn to talk by listening to themselves and others, and how adults learn and hone new motor skills, such as tennis. The process relies on feedback about what works and what doesn't, also called experience-dependent or perfor...

RNA project to create language for scientists worldwide

..., while genomicists had previously determined that humans and chimpanzees share 99 percent of the same prote...so do mice. "The hardware (proteins) for mice and humans is practically the same–but clearly mice and humans are different. Since the hardware is the same, t...

Unexpressed But Indispensable -- The DNA Sequences That Control Development

... but much higher than for coding regions shared by humans and pufferfish. A quick check showed that virtually all the sequences also occurred in rodents, chickens, and zebrafish, but not in the nematode, fruitfly, or even the sea squirt, a primitive non-vertebrate chordate. CNEs are not spread uniformly th...

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