Tuesday, December 30, 2008
Interesting research I found this week
Most pediatricians under-diagnose overweight kids.
A new study published in the January issue of the Journal Pediatrics shows just one-third of children who are overweight or obese actually receive that diagnosis by their pediatrician. Researchers reviewed BMI measurements recorded for 60,711 2-18 year olds which showed that 19% of the children were overweight, 23% obese, and 8% severely obese. While 76% of severely obese children and 54% of obese children were diagnosed – just 10% of the overweight children received a proper diagnosis. “Despite having set pediatric BMI guidelines, this is a bit of a wake-up call to pediatricians that as many as 90% of overweight children are not being properly diagnosed,” said David C. Kaelber, M.D., Ph.D., M.P.H., lead author of the study. “Better identification of this group of children who have just crossed into the ‘unhealthy’ weight category is essential for early intervention which will hopefully prevent not only a childhood of increased health problems, but also what now often becomes an ongoing battle through adulthood with life-long issues.”
Speed circulation to your brain to fight Alzheimer's
LONDON (Reuters) - A slow, chronic reduction of blood sugar to the brain could trigger some forms of Alzheimer's disease, U.S. researchers said on Wednesday.
The study of human and mice brains suggests a reduction of blood flow deprives energy to the brain, setting off a process that ultimately produces the sticky clumps of protein researchers believe is a cause of the disease. Scientists found that a protein called elF2alpha is altered when the brain does not get enough energy. This boosts production of an enzyme that in turn flips a switch to produce the sticky protein clumps. The finding could lead to strategies such as exercise, reducing cholesterol and managing blood pressure to keep Alzheimer's at bay.
Another study shows importance of protein after exercise.
Recovery from exercise is enhanced with carbohydrate-protein drink vs. a carbohydrate only drink. Adding protein to the formula immediately after exercise dramatically increases fat oxidation and speeds recovery. Journal of the International Society of Sports Nutrition 2008, 5:24doi:10.1186/1550-2783-5-24