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Sequentially Expressed Genes In Neural Progenitors Create Neural Diversity
Date: Jun-22-2013A team of New York University biologists has found that a series of genes sequentially expressed in brain stem cells control the generation of neural diversity in visual system of fruit flies. Their results are reported in the latest issue of the journal Nature. In order for the brain to properly develop and function, a vast array of different types of neurons and glia must be generated from a small number of progenitor cells...
Chlamydia Infection May Pave Way For Cancer Via DNA Damage
Date: Jun-21-2013New research from Germany suggests that persistent infection by Chlamydia may pave the way for cancer: not only does the pathogen cause mutations in host cell DNA, it also inhibits the cellular mechanisms that attempt to repair the damage. The researchers, from the Max Planck Institute for Infection Biology in Berlin (MPIIB), write about their findings in a paper published online in the journal Cell Host & Microbe on 12 June...
Circadian Rhythms Give Vegetables Healthy Boost
Date: Jun-21-2013If your salad knows what time it is, it could be healthier for you, according to new research by Rice University and the University of California at Davis. Rice biologist Janet Braam, the lead researcher of the current study published in Current Biology, said "Vegetables and fruits don't die the moment they are harvested. They respond to their environment for days, and we found we could use light to coax them to make more cancer-fighting antioxidants at certain times of day...
New Device Helps 3-Year-Old Boy Hear For First Time
Date: Jun-21-2013The first-ever auditory stem implant in a child was recently received by a 3-year-old boy from Charlotte, N.C., named Grayson Clamp. Grayson was given the device, which allows his brain to process sound, during a surgery performed last month at University of North Carolina Hospitals. Unfortunately, Grayson was born with no cochlear nerves in either ear, and consequently, could not hear. A previous study showed that deaf children benefit the most from cochlear implants if they are received early in life, and will experience notable improvements in communication skills...
Morning After Pill Fight Ends As FDA Approves OTC For All Ages
Date: Jun-21-2013The FDA has approved the morning after pill for women of any age as an over-the-counter medication and with no point-of-sale restrictions. Over-the-counter (OTC) means that no prescription is required. The FDA said the approval is for "women of child bearing age potential", i.e. any female who can get pregnant. The approval of Plan B One-Step (levonorgestrel) as an OTC medication for all women of all ages complies with the April 5th, 2013 order by the US District Court of New York...
Excess Diabetes Deaths Fallen Dramatically In UK And Canada
Date: Jun-21-2013The extra risk of dying from diabetes has fallen hugely in the UK and Canada since the mid-1990s, according to a new study in the journal Diabetologia. The study shows that the gap in death risk between those with and without diabetes has narrowed substantially...
A Higher Strength Of Cholesterol-Lowering Drugs Did Not Increase The Risk Of Kidney Injury After Heart Attack
Date: Jun-21-2013A higher strength of cholesterol-lowering drugs, or statins, did not increase the risk of kidney injury among heart attack survivors, according to preliminary research presented at the American Heart Association's Emerging Science Series Webinar.* Statins have been shown to reduce the risk of a first or recurrent heart attack, but recent observational studies suggest that high doses may be linked to a higher incidence of kidney injury...
Public Health Strategies Essential To Prevent Bullying And Suicide Among Youth
Date: Jun-21-2013Recent studies linking bullying and depression, coupled with extensive media coverage of bullying-related suicide among young people, led the Centers for Disease Control and Prevention (CDC) to assemble an expert panel to focus on these issues. This panel synthesized the latest research about the complex relationship between youth involvement in bullying and suicide-related behaviors...
Early Arthritis Associated With Reduced Consumption Of Alcohol
Date: Jun-21-2013Patients who have early arthritis consume less alcohol than controls, regardless of the type of arthritis, according to a new study published online in the journal Rheumatology. In rheumatoid arthritis (RA) specifically, the inverse association between alcohol and disease was greater in men than it was in women. Many new risk factors for RA have been discovered, although the only environmental risk factor that has been consistently shown to be associated with the disease is smoking. Studies examining alcohol consumption and RA have so far had conflicting results...
Nano-Harpoon Catches Individual Brain-Cell Signals
Date: Jun-21-2013Neuroscientists may soon be modern-day harpooners, snaring individual brain-cell signals instead of whales with tiny spears made of carbon nanotubes. The new brain cell spear is a millimeter long, only a few nanometers wide and harnesses the superior electromechanical properties of carbon nanotubes to capture electrical signals from individual neurons...
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