alexa Oxidative stress in Niemann-Pick disease, type C.
Medicine

Medicine

Anatomy & Physiology: Current Research

Author(s): Fu R, Yanjanin NM, Bianconi S, Pavan WJ, Porter FD

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Abstract Niemann-Pick disease, type C (NPC) is a neurodegenerative lysosomal storage disorder due to impaired intracellular cholesterol and lipid transport. Increased oxidative stress has been reported in human NPC1 mutant fibroblasts and in tissues from Npc1 mutant mice. However, oxidative stress in NPC patients has not been established. In this study, we demonstrated increased oxidative stress in NPC patients. Evaluation of serum from 37 NPC patients, compared to control values, showed significant decreases (p<.01) in both the fraction of reduced coenzyme Q10 (CoQ10) and trolox equivalent antioxidant capacity (TEAC). Both findings are consistent with increased oxidative stress in NPC. Supplementation with CoQ10 was not effective in correcting the decreased fraction of reduced CoQ10. Increased oxidative stress may be a contributing factor to the pathology of NPC, and demonstration of increased oxidative stress in NPC patients provides both a rationale and the biomarkers necessary to test the efficacy of antioxidant therapy in NPC. Published by Elsevier Inc.
This article was published in Mol Genet Metab and referenced in Anatomy & Physiology: Current Research

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