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Tag: "nervous" at biology news

Wisconsin scientists grow critical nerve cells

...tem cells to become spinal motor neurons, critical nervous system pathways that relay messages from the brain...or scientists trying to repair damaged or diseased nervous systems. Motor neurons transmit messages from the brain and spinal cord, dictating almost every mo...

Spleen may be source of versatile stem cells

...ther researchers - or potentially evencells of the nervous system, development of which depends on thecorrect production of Hox11."We know that if you have a major loss of blood, the spleen is turnedon to supplement the bone marrow in replenishing your blood supply. Wemay find that the spleen kicks in to hel...

Research on Worms Yields Clues on Aging

...als, the researchers' observationssuggest that the nervous system influences aging processes. Thefindings are...enetic mutations in C. elegans thataffect both the nervous system and life span. The researchers usedthese mutant worms to further pin down the mechanism by wh...

“Nano-scissors?laser shows precise surgical capability

...eneration inmice and zebrafish, which have complex nervous systems. This laserallows researchers to study nerve cells at their most basicevolutionary form, opening the door to other experiments on genetic andmolecular factors that determine whether damaged nerve cells regrow.Ben-Yakar developed the femtoseco...

Spider Venom Could Yield Eco-Friendly Insecticides

...ructures of the toxins that selectively target the nervous systems of insects to understand the toxins' mecha.... Because these toxins do not affect the mammalian nervous system, it may be possible to use them to create environmentally friendly insecticides. Insect pest...

In the sea slug's defense against lobsters, confusion is key

... comprise a multi-pronged attack on the predator's nervous system, resulting in the usurpation of its normal ...nically, the slug's ability to trick the lobster's nervous system into activating feeding-associated behaviors succeeds, in combination with ink and opaline's ...

Critical role in programmed cell death identified

... apoptosis, is essential for life; it's needed for nervous system development and it keeps the body up and ru...irth, more than half are eliminated in the central nervous system in mammals: "It's a common safeguard, to ensure that neurons talk to the right neighbors and ...

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

Alcohol's primary target is the central nervous system (CNS), where it influences neurotransmission to produce intoxication. Scientists can now use microarray technology to study brain function gene by gene. Symposium proceedings published in the February issue of Alcoholism: Clinical & Experi...

Zebrafish may hold key to understanding human nerve cell development

...ole in the development of stemcells throughout the nervous system. Much more research is needed toidentify this signal but we're optimistic our work has set the stagefor future discoveries," said Piotrowski.The University of Utah has one of the largest zebrafish facilities inthe country with more than 6,000 ...

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

...ole in the development of stemcells throughout the nervous system. Much more research is needed toidentify this signal but we're optimistic our work has set the stagefor future discoveries," said Piotrowski.The University of Utah has one of the largest zebrafish facilities inthe country with more than 6,000 ...

GenMAPP 2.0 released

...ole in the development of stemcells throughout the nervous system. Much more research is needed toidentify this signal but we're optimistic our work has set the stagefor future discoveries," said Piotrowski.The University of Utah has one of the largest zebrafish facilities inthe country with more than 6,000 ...

Beyond lithium for bipolar disorder

...er. PACAP protein is found throughout the central nervous system, said the researchers. They cited studies demonstrating that mice in which the gene is knocked out show hyperactivity and defects in their circadian (day-night) behavior--both also characteristic of humans with bipolar disorder. Also, in anima...

Examination of internal 'wiring' of yeast, worm, and fly reveals conserved circuits

... an initial step in the development of the central nervous system, would not be needed by lower organisms, such as yeast, which don't have nerves. Ideker predicted that protein-interaction studies will soon become indispensable tools for biologists seeking a better understanding of all cellular functions. H...

VCU Researchers Identify Networks Of Genes Responding To Alcohol In The Brain

... Bdnf is found in the brain and is a vital part of nervous system development. "We found that the interaction between the Bdnf gene and several other genes that interact with Bdnf were all regulated in one region of the brain that is known to play a role in drug addiction," Miles said. "These findings sugge...

Antibiotic might fight HIV-induced neurological problems

...te HIV's negative effects on the brain and central nervous system, problems that can develop even though anti... brain inflammation, and less virus in the central nervous system than six infected monkeys that received no treatment, the researchers report in the April 27 ...

Rats infected as newborns grew up vulnerable to memory problems during an immune challenge

...in the hippocampus, which in turn help the central nervous system respond to injury or infection. Because ast...o help to determine the number and connectivity of nervous system synapses early in life, especially the first week after birth in rats, they may be involved i...

Cricket's finicky mating behavior boosts biodiversity

...ies and the growth of biodiversity. "Animals with nervous systems and brains have preferences and can make choices," says Tamra Mendelson, an evolutionary biologist at Lehigh. "Changes in these preferences and choices appear to drive speciation. "That raises the question: Can something seemingly so individ...

50-year-old Mystery Solved: Protein Tags Regulate Key Ion Channel

...in, heart and skeletal muscles "fire," sending out nervous impulses that become thoughts, heartbeats and basketball dunks. "We found that a little-studied process called sumoylation, previously associated with nuclear proteins, is active and essential outside the nucleus at the plasma membrane," said study ...

New component of the 'brakes' on nerve regeneration found

...such machinery and can readily regenerate, central nervous system (CNS) neurons have their brakes firmly in place and locked. Now, two groups of scientists have independently found a new component of that braking machinery, adding to understanding of the regulation of neuronal regeneration and of possible t...

Light therapy may combat fungal infections, new evidence suggests

...reatening fungus C. neoformans invades the central nervous system to cause disease, most commonly in patients who lack a functioning immune system, such as organ transplant recipients, those with HIV/AIDS, and patients treated with steroids or cancer chemotherapy. The fungus' global importance as a health th...

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