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Acetyl-l-carnitine as a possible therapy for Alzheimer's disease
Jay W Pettegrew1, Richard J McClure
1Neurophysics Laboratory, Neurology and Health Services Administration, Western Psychiatric Institute and Clinic, University of Pittsburgh Medical Center, A741 Crabtree Hall, 130 De Soto Street, Pittsburgh, PA 15213, USA. pettegre+@pitt.edu
Abstract:
Alterations have been demonstrated in membrane phospholipid metabolism in Alzheimer's disease. Alterations in membrane phospholipid metabolite levels have been observed by 31P magnetic resonance spectroscopy 4 years before onset of cognitive changes. Implications of phospholipid membrane changes in Alzheimer's disease are presented. Augmentation of brain levels of acetyl-l-carnitine, an endogenous molecule, may help to reverse membrane phospholipid changes in Alzheimer's disease. Neurobiological effects of acetyl-l-carnitine and potential molecular mechanisms of acetyl-l-carnitine activity are reviewed. Clinical trials of acetyl-l-carnitine indicate that it is well-tolerated and may be effective in younger Alzheimer's disease patients and may be an effective adjuvant treatment. Acetyl-l-carnitine may especially benefit those Alzheimer's disease patients with depressive disorders.
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