Vascular and neurogenic rejuvenation of the aging mouse brain by young systemic factors.
Vascular and neurogenic rejuvenation of the aging mouse brain by young systemic factors.
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DOI:
10.1126/science.1251141
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发表时间:
2014-05-09
期刊:
影响因子:
--
通讯作者:
Rubin LL
中科院分区:
文献类型:
--
作者:
Katsimpardi L;Litterman NK;Schein PA;Miller CM;Loffredo FS;Wojtkiewicz GR;Chen JW;Lee RT;Wagers AJ;Rubin LL
In the adult central nervous system, the vasculature of the neurogenic niche regulates neural stem cell behavior by providing circulating and secreted factors. Age-related decline of neurogenesis and cognitive function is associated with reduced blood flow and decreased numbers of neural stem cells. Therefore, restoring the functionality of the niche should counteract some of the negative effects of aging. We show that factors found in young blood induce vascular remodeling, culminating in increased neurogenesis and improved olfactory discrimination in aging mice. Further, we show that GDF11 alone can improve the cerebral vasculature and enhance neurogenesis. The identification of factors that slow the age-dependent deterioration of the neurogenic niche in mice may constitute the basis for new methods of treating age-related neurodegenerative and neurovascular diseases.
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