Combined adult neurogenesis and BDNF mimic exercise effects on cognition in an Alzheimer's mouse model.
Combined adult neurogenesis and BDNF mimic exercise effects on cognition in an Alzheimer's mouse model.
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DOI:
10.1126/science.aan8821
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发表时间:
2018-09-07
期刊:
影响因子:
--
通讯作者:
Tanzi RE
中科院分区:
文献类型:
--
作者:
Choi SH;Bylykbashi E;Chatila ZK;Lee SW;Pulli B;Clemenson GD;Kim E;Rompala A;Oram MK;Asselin C;Aronson J;Zhang C;Miller SJ;Lesinski A;Chen JW;Kim DY;van Praag H;Spiegelman BM;Gage FH;Tanzi RE
Adult hippocampal neurogenesis (AHN) is impaired prior to the onset of Alzheimer’s disease (AD) pathology. We found that exercise provided cognitive benefit to 5×FAD mice, a mouse model of AD, by inducing AHN and elevating levels of brain-derived neurotrophic factor (BDNF). Neither stimulation of AHN alone, nor exercise, in the absence of increased AHN, ameliorated cognition. We successfully mimicked the beneficial effects of exercise on AD mice by genetically and pharmacologically inducing AHN in combination with elevating BDNF levels. Suppressing AHN later led to worsened cognitive performance and loss of pre-existing dentate neurons. Thus, pharmacological mimetics of exercise, enhancing AHN and elevating BDNF levels, may improve cognition in AD. Furthermore, applied at early stages of AD, these mimetics may protect against subsequent neuronal cell death. Role of Adult Neurogenesis in Alzheimer’s Disease.
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