Thursday, January 5, 2012

Changes in Cerebrospinal Fluid May Signal Early Alzheimer's

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(Spinal Tap May Predict Alzheimer's Years Ahead)
Scientists are finding more clues to help determine whether people with mild dementia symptoms are at risk for Alzheimer's.
A new study suggests that biomarkers found in cerebrospinal fluid (fluid that surrounds the spinal cord and brain and acts as a protective cushion) could predict who would develop Alzheimer's disease 90% of the time among patients with mild cognitive impairment, a condition characterized by measurable memory problems. Researchers focused on two biomarkers previously thought to be involved in Alzheimer's disease: a kind of protein called beta-amyloid, and another protein type called tau. Experts believe a decrease in beta-amyloid in the fluid of the spinal cord is associated with a toxic buildup of that protein in the brain, which causes the formation of plaques linked to Alzheimer's disease. Tau has been tied to neurofibrillary tangles in the brain; researchers find that an increase in tau in cerebrospinal fluid is associated with Alzheimer's also.
The results from the study suggest that beta-amyloid is a much earlier predictor of Alzheimer's disease than tau, which supports the hypothesis that beta-amyloid accumulation in the brain occurs first in the course of the disease. Continue to read: 4029tv.com





Ethanolic extracts from herbs can boost antioxidant levels in cookies

Supplementing cookies with a mixture of the ethnologic extracts of medicinal herbs can raise antioxidant activity in cookies and reduce chemical spoilage, according to a study from Serbian researchers. Read more: nutraingredients.com 

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