Everything You Need to Know About Health: ScienceDaily Health Headlines -- for Sunday, October 19, 2008

ScienceDaily Health Headlines

for Sunday, October 19, 2008

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No Higher Risk Of Leukemia Found For Children Living Near Powerful Radio Or Television Transmitters (October 18, 2008) -- Children living in the vicinity of powerful radio and television transmitters are not significantly more at risk of leukemia than others, according to a new German study. ... > full story

Optics Of Alzheimer’s Disease (October 18, 2008) -- One of the hallmarks of Alzheimer’s disease is the formation of plaques made of protein aggregates in the brain tissue. There is still considerable debate among scientists as to whether these plaques are the cause of the neuronal death that occurs in Alzheimer’s or just a by-product of the disease, however. ... > full story

Viruses And 'Young Cuckoos' Lead The Way In The Brain (October 18, 2008) -- Harmless viruses and genetic 'young cuckoos' are going to reveal the answers as to how the brain establishes where we are. The understanding of our sense of locality will be the first higher brain function that we understand at a molecular level. ... > full story

Physical Decline Caused By Slow Decay Of Brain's Myelin (October 18, 2008) -- Human's physical and mental abilities slow as we age, caused by the steady decay of myelin, the "insulation" around neuronal axons. ... > full story

Keeping Herpes Infection In Check: Researchers Describe Immune System Strategies (October 18, 2008) -- Herpes simplex virus type I can cause bouts of cold sores, blindness and potentially lethal encephalitis when it reawakens from a quiescent state in the nerve cells it infects. To prevent these consequences, the stealthy virus is kept under constant guard by the immune system, say University of Pittsburgh scientists. Their research challenges the once common notion that latent HSV-1 in sensory neurons is invisible to the immune system. ... > full story

Fine Balance: Class Of Spinal Cord Neurons Makes Sure That Sides Of Body Don't Get Ahead Of One Other (October 18, 2008) -- Once a toddler has mastered the art of walking, it seems to come naturally for the rest of her life. But walking and running require a high degree of coordination between the left and right sides of the body. Now researchers have shown how a class of spinal cord neurons, known as V3 neurons, makes sure that one side of the body doesn't get ahead of the other. ... > full story

Drug Candidate Slows Age-related Macular Degeneration (October 18, 2008) -- Research results show that the progression of age-related macular degeneration is markedly slowed in new laboratory-engineered mice when they received treatments of retinylamine, a trial drug that has been tested in a medical school lab. AMD is a leading cause of vision loss in Americans 60 years of age and older. ... > full story

Wildfires Cause Ozone Pollution To Violate Health Standards, New Study Shows (October 18, 2008) -- Wildfires can boost ozone pollution to levels that violate US health standards. A new study has found that California wildfires in 2007 tripled the number of ozone violations across a broad area. ... > full story

Smell Of Smoke Does Not Trigger Relapse In Quitters, New Research Shows (October 18, 2008) -- Research into tobacco dependence has shown that recent ex-smokers who find exposure to other people's cigarette smoke pleasant are not any more likely to relapse than those who find it unpleasant. ... > full story

Stem Cell Breakthrough: Mass-Production Of 'Embryonic' Stem Cells From A Human Hair (October 18, 2008) -- Researchers have successfully reprogrammed adult human cells called keratinocytes -- attached to a single hair -- into induced pluripotent stem cells, which by all appearances looked and acted like embryonic stem cells. And, the researchers have boosted reprogramming efficiency more than 100-fold, while cutting the time it takes in half. ... > full story

Mechanism For Immune System Suppression Pinpointed; Could Help Treat HIV, Measles, And Tuberculosis (October 18, 2008) -- Diseases such as HIV, tuberculosis, and measles claim countless lives by weakening immune systems in ways that have remained unclear. For the first time, researchers have now pinpointed a clear mechanism for immunosuppression. They have shown how an initial viral infection can block production of critical immune system proteins known as type I interferons, leading to susceptibility to other, potentially deadly infections. ... > full story

Stabilizing Force For Good Communication Between Neurons And Muscle Cells Found (October 18, 2008) -- A neuron sends a message, or neurotransmitter, to a muscle cell to tell it what to do. To get the message, the receiving cell must have a receptor. Oddly, the unstable protein rapsyn is responsible for anchoring the receptor so it's properly positioned to catch the message. Now have found what keeps rapsyn in proper conformation. ... > full story

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