کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5629203 1580151 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Research PaperTreadmill exercise decreases amyloid-β burden possibly via activation of SIRT-1 signaling in a mouse model of Alzheimer's disease
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی عصب شناسی
پیش نمایش صفحه اول مقاله
Research PaperTreadmill exercise decreases amyloid-β burden possibly via activation of SIRT-1 signaling in a mouse model of Alzheimer's disease
چکیده انگلیسی


- Treadmill exercise increased SIRT-1 levels, resulting in increased ADAM-10 by downregulating ROCK-1 and upregulating RARβ.
- Treadmill exercise increased PGC-1α levels, which reduced BACE-1 and C-99 expression.
- Treadmill exercise inhibits Aβ production possibly by activating non-amyloidogenic pathway via SIRT-1/PGC-1α signaling.

Accumulation of amyloid-β (Aβ) correlates significantly with progressive cognitive deficits, a main symptom of Alzheimer's disease (AD). Although treadmill exercise reduces Aβ levels, the molecular mechanisms underlying the effects are not fully understood. We hypothesize that treadmill exercise decreases Aβ production and alleviates cognitive deficits by activating the non-amyloidogenic pathway via SIRT-1 signaling. Treadmill exercise improved cognitive deficits and alleviated neurotoxicity. Most importantly, treadmill exercise increased SIRT-1 level, which subsequently resulted in increased ADAM-10 level by down-regulation of ROCK-1 and upregulation of RARβ, ultimately facilitating the non-amyloidogenic pathway. Treadmill exercise-induced activation in SIRT-1 level also elevated PGC-1α level and reduced BACE-1 and C-99 level, resulting in inhibition of the amyloidogenic pathway. Treadmill exercise may thus inhibit Aβ production via upregulation of SIRT-1, which biases amyloid precursor protein processing toward the non-amyloidogenic pathway. This study provides novel and valuable insight into the molecular mechanisms possibly by which treadmill exercise reduces Aβ production.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Experimental Neurology - Volume 288, February 2017, Pages 142-152
نویسندگان
, , , , ,