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In scientific first, Einstein researchers correct decline in organ function associated with old age
Date:8/10/2008

ins continue to be efficiently removed strongly supporting the idea that protein buildup in cells plays an important role in aging itself," says Dr. Cuervo. "Even more important, these results show that it's possible to correct this protein 'logjam' that occurs in our cells as we get older, thereby perhaps helping us to enjoy healthier lives well into old age."

Dr. Cuervo next plans to study animal models of Alzheimer's, Parkinson's and other neurodegenerative brain diseases to see whether maintaining efficient protein clearance in the brain might help in treating them. "Most people with these conditions are born with a mutation that gives rise to defective proteins, but they don't experience symptoms until later in life," says Dr. Cuervo. "We think that's because their protein-clearance systems can handle abnormal proteins when the person is younger but get overwhelmed as their efficiency falls with age. By preventing this decline in protein clearance, we may be able to keep these people free of symptoms for a longer time."

Dr. Cuervo will also investigate whether maintaining efficient protein clearance in all the body's tissues will influence longevity and prevent the functional losses associated with growing old. "There's reason to hope that drugs exerting a similar effect throughout the body may help us enjoy healthier lives well into old age," says Dr. Cuervo. Meanwhile, she notes, evidence is mounting that two dietary interventions low-fat and calorie-restricted diets help cells to maintain efficient protein clearance.


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Contact: Karen Gardner
kgardner@aecom.yu.edu
718-430-3101
Albert Einstein College of Medicine
Source:Eurekalert

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