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Study Finds Widespread Use Of Rotavirus Vaccine Can Protect Unvaccinated, Increase Age Of First Infection
New vaccines against rotavirus, "the leading cause of severe diarrhea in infants," can prevent or lessen the severity of an epidemic, protect unvaccinated children and increase the age of first infection, lessening the severity of the disease, according to a study published in the journal Science, Bloomberg reports (Olmos, 7/16).
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Male Retirement Age And Dementia
British scientists have found a significant link between later retirement age and later onset of dementia in men.
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Generation Of A Severe Memory-Deficit Mutant Mouse By Exclusively Eliminating The Kinase Activity Of CaMKIIalpha
Ca2+/calmodulin-dependent protein kinase II alpha (CaMKII alpha) is an enzyme that adds phosphates to a variety of protein substrates to modify their functions. CaMKII alpha is enriched in the hippocampus, the memory center of the brain, and is believed to be an essential mediator of activity-dependent synaptic plasticity and memory functions. However, the causative role of the enzymatic activity of CaMKII alpha in such processes has not been demonstrated yet, because this enzyme has multiple protein functions other than the kinase activity. A Japanese research group, led by Dr Yoko Yamagata of the National Institute for Physiological Sciences, Japan, has successfully generated a novel kinase-dead mutant mouse of the CaMKII alpha gene that completely and exclusively lacks its kinase activity. They examined hippocampal synaptic plasticity and behavioral learning of the mouse, and found a severe deficit in both processes. They reported their findings in the Journal of Neuroscience, published on June 10, 2009.
Cardiovascular

Insurers Struggle In Downturn As Senators Consider Adding New Tax

"Earnings from the nation"s big health insurers show signs of a new uptick in medical costs related to the recession: As unemployment rises, people who have lost their jobs or are fearful of losing them are rushing to see doctors to get medical tests before their benefits expire," the Wall Street Journal reports. WellPoint, the nation"s largest insurer by volume, reported a 7.6 percent dip in profits and the loss of 338,000 members in the second quarter, further illuminating the trend. Other insurers have experienced similar patterns in which policyholders are seeking more - and more expensive - health services. The trend is emerging as Congress seeks to pay for a major overhaul of the health system, which would include "wringing" more system-wide savings from insurers and other health industries. The development illuminates "the difficulty of such a quest," the Journal reports (Fuhrmans and Johnson, 7/30). One plan to achieve the goal is to levy a tax on insurers" high-priced plans. "The insurers" tax idea has emerged in the Senate Finance Committee, where chairman Max Baucus said it is gaining momentum to become part of the healthcare plan being developed behind closed doors," Reuters reports. "Imposing a tax on insurance plans with premiums above $25,000 a year could raise about $90 billion over 10 years" (Frank, 7/29). "Some people have very generous health insurance plans," Len Burman, of the Urban Institute"s Tax Policy Center, told National Public Radio. "[T]hey encourage them to spend more on medical care than they would if they had less generous plans. So part of the idea is that if you limited the tax benefits for the very generous health insurance plans, people would spend less and that would actually help lower health costs overall" (Shapiro, 7/30). This information was reprinted from kaiserhealthnews.org with kind permission from the Henry J. Kaiser Family Foundation. You can view the entire Kaiser Daily Health Policy Report, search the archives and sign up for email delivery at kaiserhealthnews.org. © Henry J. Kaiser Family Foundation. All rights reserved.


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