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Tag: "neurobiology" at biology news

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

...m J. McBride, symposium organizer and professor of neurobiology at the Indiana University School of Medicine. "The reason that different cells can appear and work so differently with the same genes ?giving us, for example, unique eyes, skin, or hair ?is that only some genes are used or 'turned on' in each cell. T...

Zebrafish may hold key to understanding human nerve cell development

...d TatjanaPiotrowski, Ph.D., assistant professor of neurobiology and anatomy atthe University of Utah School of Medicine. Scientistslong have known that glial cells, or simply glia, are essential forhealthy nerve cells. However, in the last 10 years scientists havelearned that glia aren't just "glue" holding nerv...

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

...d TatjanaPiotrowski, Ph.D., assistant professor of neurobiology and anatomy atthe University of Utah School of Medicine. Scientistslong have known that glial cells, or simply glia, are essential forhealthy nerve cells. However, in the last 10 years scientists havelearned that glia aren't just "glue" holding nerv...

GenMAPP 2.0 released

...d TatjanaPiotrowski, Ph.D., assistant professor of neurobiology and anatomy atthe University of Utah School of Medicine. Scientistslong have known that glial cells, or simply glia, are essential forhealthy nerve cells. However, in the last 10 years scientists havelearned that glia aren't just "glue" holding nerv...

Stem Cell Research Shows Potential for Replacing Tissue Damaged in Heart Attacks

...y John W. Lough, Ph.D., professor of cell biology, neurobiology and anatomy has found that embryonic stem cells (ES cells) in animals can be cultivated to form new tissue, which eventually may help doctors learn how to replace tissue damaged as a result of a heart attack. The potential for ES cells to replace da...

Researchers make surprise discovery that some neurons can transmit three signals at once

...lained Karl Kandler, Ph.D., associate professor of neurobiology at the University of Pittsburgh School of Medicine, and the study's senior author. "These findings shed new light on how inhibitory synapses evolve and are assembled into functional circuits in the developing brain," he added. Many brain disorders,...

Structure-building cell signals also may influence learning and memory

...ivity." Yamaguchi is a professor of developmental neurobiology at the Burnham Institute, where his research zeros...Pasquale, who also is a professor of developmental neurobiology at Burnham. Pasquale is an internationally known expert in ephrins and their receptors, and Yamaguch...

Mother birds increase progesterone to hatch females

...aid," says Stephanie Correa, a doctoral student in neurobiology and behavior at Cornell and the lead author of the...a, along with Elizabeth Adkins-Regan, professor of neurobiology and behavior and of psychology, and Patricia Johnson, professor of animal science, both at Cornell, ...

Unlike other mammals, newborn dolphins and orcas stay active 24/7 during first months of development

...uroscience and Human Behavior at UCLA and chief of neurobiology research at the VA Greater Los Angeles Healthcare System, Sepulveda. "Their bodies have found a way to cope, offering evidence that sleep isn't necessary for development and raising the question of whether humans and other mammals have untapped physi...

Mosaic mouse technique offers a powerful new tool to study diseases and genetics

...es back to an interesting problem in developmental neurobiology as to whether the brain is wired by genetics or by environment--nature or nurture. Our discovery makes us feel that cerebellum wiring is more genetically determined than previously thought." Powerful approach In a companion article published in the...

Bees, Brains and Addiction

... forgo eating and ultimately starve to death. The neurobiology and evolutionary basis of the brain circuitry that...'s High Tech High, seeking to learn more about the neurobiology of drugs and addiction for their science class. The next lecture in the series will be given May 24...

Researchers feed tiny pills of RNA to planarians to identify genes essential for regeneration

...igator and U medical school associate professor of neurobiology and anatomy. The U team's work shows that planarian genes can be selectively manipulated to study some of the most basic and important areas of biological research: stem cells, homeostasis (tissue loss and replacement), regeneration, and disease. "P...

Suppressing growth hormone in early adulthood may prevent cancer

...lationship," said Sonntag, whose work explores the neurobiology of aging. Previous studies in some animals indicate that a reduction in IGF-1 activity increases lifespan. To date, there are no studies of a specific suppression of IGF-1 on aging or age-related diseases. In the current study, Sonntag found that a...

Lactose intolerance linked to ancestral environment

...volutionary biologist Paul Sherman, a professor of neurobiology and behavior at Cornell. "This is a spectacular case of how cultural evolution -- in this case, the domestication of cattle -- has guided our biological evolution." Although all mammalian infants drink their mothers' milk, humans are the only mammal...

How fish hear and make sounds at same time

...o that of mammals," said Andrew Bass, professor of neurobiology and behavior at Cornell, and an author of the study published in the June 22 issue of the Journal of Neuroscience. "You don't need to study a mammal to understand what a mammal does." The researchers found that as the fish's brain signals vocal musc...

Grasshopper love songs give insight into sensory tuning

...itely tuned to relevant input. A major question in neurobiology is how neurons tune the strength of their interconnections to optimally respond to such inputs. Neuronal circuitry consists of a web of neurons, each triggering others by launching bursts of neurotransmitters at targets on receiving neurons to produ...

Sudden change in social status triggers genetic response in male fish, study finds

..." says co-author Jarvis, an associate professor of neurobiology at Duke University. "What I think is striking about this paper is how rapid the social change, the physiological sign of dominance and the associated genomic response occur." Opportunity knocks "These results show that the rapid behavioral res...

Bats use touch receptors on wings to fly, catch prey, study finds

...ent by listening to echoes. But an Ohio University neurobiology professor says bats have a "feel" for it, too. John Zook's studies of bat flight suggest that touch-sensitive receptors on bats' wings help them maintain altitude and catch insects in midair. His preliminary findings, presented at the recent Society...

What can change in the brain? Electrical synapses, research shows

...behavioral states." Carole Landisman, currently a neurobiology researcher at Harvard Medical School, is the lead author of the paper. Landisman was an investigator in Connors' lab at Brown, where the experiments were conducted. To better understand how electrical synapses function, Landisman and Connors recorde...

Attention shoppers: Researchers find neurons that encode the value of different goods

...amillo Padoa-Schioppa, PhD, HMS research fellow in neurobiology and lead author of the paper. "The neurons we have identified encode the value individuals assign to the available items when they make choices based on subjective preferences, a behavior called 'economic choice.'" Everyday examples of economic choi...

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