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Tag: "governs" at biology news

NIDA study identifies genes that might help some people abstain from smoking

...in 13 (a molecule involved in cell adhesion, which governs how cells recognize and connect to their neighbors) and a cyclic G-dependent protein kinase gene, which plays a key role in normal brain development. In addition to genes implicated in intracellular signaling and intercellular interactions, a number ...

Mechanism of nicotine's learning effects explored

...s called “spike-timing-dependent potentiation?that governs changes in strength of signaling connections among neurons. What’s more, the researchers traced this effect to nicotine’s action on specific kinds of neurons, called GABAergic neurons, in the learning centers. In turn, the effects on GABAergic neuron...

Electronic chip, interacting with the brain, modifies pathways for controlling movement

...limb muscles. When awake, the brain continuously governs the body's voluntary movements. This is largely done through the activity of nerve cells in the part of the brain called the motor cortex. These nerve cells, or neurons, send signals down to the spinal cord to control the contraction of certain muscl...

Eat less, weigh more? Enzyme makes lean mice 'susceptible' to dietary fat

...egions of the brain, namely the hypothalamus, that governs eating behavior. Previously, the same researchers showed that a molecule called malonyl-CoA is critical for fat metabolism. And as it turns out, malonyl-CoA interacts with CPT1c, according to Lane. Increasing the amount of malonyl-CoA in the liver ...

New angiogenesis finding may help fight cancer growth

...vered a new part of the complicated mechanism that governs the formation of blood vessels, or angiogenesis. The finding may help halt tumor growth in cancer patients, says Emery Bresnick, the senior author on the study, a professor of pharmacology and member of the UW-Madison Paul P. Carbone Comprehensive...

Study shows frogs can play key role in stem cell research

...nt. The key protein in humans, called Oct4, which governs the process of unlimited division of stem cells, has an equivalent in the African clawed frog, called PouV. This new research shows that the two proteins are not only similar, but perform the same function ?both bind to DNA and activate certain genes...

Gene discovery may shed light on kidney disease

...nt study, JAG1 is part of a signaling pathway that governs important processes in early human development. Alagille syndrome, estimated to occur in one in 20,000 individuals, is a complex disorder, primarily affecting the liver, heart, eyes, face and skeleton. Some patients with Alagille syndrome have very...

New McGill research shows mice capable of empathy

...rst identified sex-specific genetic circuitry that governs the way males and females respond to pain. Dr. Mogil generally explores the genetic and environmental influences that combine to govern reactions to pain. He holds the Canada Research Chair in the Genetics of Pain (Tier 1). ...

Advanced genomics and proteomics improve the diagnosis and treatment of a deadly lung disease

...hat enables cells to silence genes, a process that governs key developmental events ranging from brain development to stem cell differentiation. The study was led by Jennifer A. Doudna, a Howard Hughes Medical Institute investigator at the University of California, Berkeley. Doudna's research team used x-r...

Molecule does more than slice and dice RNA

...hat enables cells to silence genes, a process that governs key developmental events ranging from brain development to stem cell differentiation. The study was led by Jennifer A. Doudna, a Howard Hughes Medical Institute investigator at the University of California, Berkeley. Doudna's research team used x-r...

'Uniquely human' component of language found in gregarious birds

...tions, a hierarchy of syntactical complexity, that governs the process of how humans create and understand utterances," said Daniel Margoliash, professor of anatomy and organismal biology at the University of Chicago and co-author of the study. "These rules govern how to properly express yourself ?how to str...

Wisconsin scientists discover a master key to microbes' pathogenic lifestyles

...ends signals down a molecular chain of command and governs a series of vital genetic programs," Klein explain...ndemic regions." The discovery of the switch that governs dimorphism and virulence in this prevalent class of fungi provides a target for new therapeutic agen...

Scientists crack code for motor neuron wiring

... deciphered a key part of the regulatory code that governs how motor neurons in the spinal cord connect to sp...; and finally, the motor neuron pool identity that governs the muscle target of each set of motor neurons. In a key set of experiments, Dasen showed that alter...

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

...ience and co-author of the paper. "But plasticity governs many critical brain functions. Since electrical synapses help synchronize the activity of brain cells, these junctions probably help regulate specific brain rhythms that occur while you are awake or sleeping. So this work helps us better understand, ...

The brain is broadly wired for reproduction

... vast network of neurons in the brain of mice that governs reproduction and controls the effects of reproductive status on other brain functions. In their studies, the researchers found neural circuits that coordinate a complex interplay between neurons that control reproduction and brain areas that carry t...

Olfactory system detects pheromones that control reproduction

...ding mice, dogs, cats, and elephants -- the system governs a range of genetically preprogrammed mating, socia...n of olfaction, in which the main olfactory system governs cognitively based behavior and the vomeronasal system governs hard-wired, pheromone-triggered behavi...

Scientists map one of biology's critical light-sensing structures

For plants, the ability to accurately sense light governs everything from seed germination, photosynthesis and pigmentation to patterns of growth and flowering. Now, for the first time, scientists have obtained a detailed map of one of biology's most important light detectors, a protein found in many speci...

Einstein scientists discover how protein crucial for motion is synthesised at the right place in the cell

...--a process crucial for the cellular motility that governs nerve growth, wound healing and cancer metastasis. Their study appears in the November 24 issue of the journal Nature. Led by Drs. Robert Singer and Dr Stefan Huettelmaier, the research team focused on migrating fibroblast cells important in wound h...

CO2 sensing proves critical for fungal pathogens to adapt to life in air and human hosts

... that offers insight into how carbon dioxide (CO2) governs the morphogenic changes that allow pathogenic fungi to survive in different environments and invade the human body, and they provide new evidence for how CO2 sensing and metabolism utilize evolutionarily conserved enzymes to control the growth and se...

Enzyme affects hypertension by controlling salt levels in body

...nsporter," he said. "The sodium channel critically governs how much sodium gets reabsorbed." Normally, the kidney filters and reabsorbs about 99 percent of sodium from the blood and returns it to the body, excreting 1 percent through urine, said Dr. Huang, a nephrologist. However, if salt ingestion remains...

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