期刊
TRENDS IN NEUROSCIENCES
卷 29, 期 11, 页码 632-639出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tins.2006.09.001
关键词
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资金
- Intramural NIH HHS Funding Source: Medline
Diets rich in vegetables and fruits are associated with reduced risk of several major diseases, including neurodegenerative disorders. Although some beneficial phytochernicals might function solely as antioxidants, it is becoming clear that many of the beneficial chemicals in vegetables and fruits evolved as toxins (to dissuade insects and other predators) that, at subtoxic doses, activate adaptive cellular stress-response pathways in a variety of cells including neurons. Examples of such 'preconditioning' or 'neurohormesis' pathways include those involving cell-survival signaling kinases, the transcription factors NRF2 and CREB, and histone deacetylases of the sirtuin family. In these ways, neurolhormetic phytochernicals such as resveratrol, sulforaphanes and curcurnin might protect neurons against injury and disease by stimulating the production of antioxidant enzymes, neurotrophic factors, protein chaperones and other proteins that help cells to withstand stress. Thus, as we discuss in this review, highly conserved longevity and survival pathways in neurons are the targets of many phytochemicals.
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