【摘 要】
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Purpose Cerebral hypo-metabolism,oxidative stress and β-amyloid peptide (Aβ) accumulation are key pathological events in Alzheimers disease (AD).β-secret
【机 构】
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Department of Anatomy and Neurobiology, Central South University Xiangya Medical School, Changsha, H
【出 处】
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中国神经科学学会第四次会员代表大会暨第七届全国学术会议(The 7th Biennial Meeting and the
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Purpose Cerebral hypo-metabolism,oxidative stress and β-amyloid peptide (Aβ) accumulation are key pathological events in Alzheimers disease (AD).β-secretase (BACE,i.e.,BACE 1),a prerequisite for Aβ genesis,is elevated in sporadic AD.Recent studies show BACE up-regulation in experimental conditions likely associated with energy insufficiency and/or oxidative stress.We investigated the effect of sublethal doses of mitochondrial respiratory inhibitors and potential endogenous oxidative substances on BACE expression in vivo using the retina as a model.Materials Retinas were analyzed biochemically and anatomically 48 h following intraocular applications of mitochondrial complex Ⅰ,Ⅱ and Ⅳ inhibitors including rotenone,3-nitropropionic acid and sodium azide,and plaque-containing oxidants including Fe3+ and Aβ42 fibrils (Aβ42f).
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