Serotonin may be autism key
VITAMIN DSerotonin may be autism keyThe hormone that comes from vitamin D affects two genes that control levels of serotonin in the brain and in the gut, and improving consumption of the nutrient could help prevent autism or improve behavioral symptoms of the disorder, according to scientists at .In the brain, serotonin plays a role in social behavior, and low levels have been associated with the abnormal behaviors common in people with autism. The vitamin D hormone, the scientists found,asics padel, activates the gene that produces serotonin in the brain; therefore, a vitamin deficiency could lead to lower serotonin levels.At the same time, vitamin D hormone stops a gene that ordinarily inhibits serotonin production in the gut, the scientists found. Excessive serotonin in the gut can boost production of certain immune cells, including antibodies that, in some mothers,nike free tilbud, attack fetal brain tissue. Previous studies have found that mothers with autistic children sometimes have higher levels of those antibodies.The new research suggests that making sure pregnant women get enough vitamin D may be helpful in preventing autism. Plus, vitamin D may be a treatment for people with behavioral problems related to autism.The study results were published online Feb.Huntington's disease is caused by a mutation to the HTT gene,nike free run, which results in abnormal development of a protein called huntingtin. Damaged huntingtin is at the center of the disease process, and negative effects from the one protein radiate out among hundreds of "friends" and "friends of friends" proteins,nike free dame, the Buck scientists said.In their study, the researchers identified 2,141 proteins that are "highly connected" to the huntingtin protein and affected by the initial mutation.Their work has revealed at least one key biological pathway that is interrupted in Huntington's disease, damaging cellular movement and communication. That pathway, and others that scientists expect to find, could be a target for future drug therapies. There is currently no treatment for Huntington's disease.The research will be printed Friday in the Journal of Biological Chemistry.HEARINGMice offer clues into auditory lossStanford University researchers are trying to understand at the molecular level how people lose their hearing.Hair cells not related to ear hair found deep inside the ear are responsible for detecting vibrations in the air and translating it to sound. Without these cells, hearing loss occurs. So researchers are studying the hair cells in newborn mice to better comprehend how to treat hearing problems and deafness. And they made a big discovery hair cells that had been damaged grew back in the infant mice.In the study, the scientists induced hearing loss in the mice at birth and then watched as they magically grew back. There was not much regeneration of the hair cells after the mice turned a week old,asics noosa, and most of the renewal didn't ultimately survive, researchers said.But now scientists can build on the theory that hair cells can rebuild in the first days after birth."No spontaneous auditory hair cell regeneration has been observed in postnatal mammals prior to this study," wrote Dr. "Extensive efforts from laboratories around the world have focused on understanding mechanisms that can drive mammalian hair cell regeneration."VISIONWith treatment, blind sense more light UC Berkeley researchers have developed a new compound that can help restore light sensitivity to people with diseases that cause blindness.As highlighted recently in the journal Neuron, the compound may serve as a drug candidate for treating patients dealing with degenerative retinal disorders.
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