Abstract |
Sirtuin 1 ( SIRT1), a member of the silent information regulator 2 in mammals, has recently been found to be involved in age-related diseases, such as cancer, metabolic diseases, cardiovascular disease, neurodegenerative diseases, osteoporosis and chronic obstructive pulmonary disease ( COPD), mainly through deacetylation of substrates such as p53, forkhead box class O, peroxisome proliferator activated receptor gamma co-activator 1alpha, and nuclear factor-kappaB. It is widely reported that SIRT1 can promote not only carcinogenesis but also metastasis and insulin resistance, andhave beneficial effects in metabolic diseases, mediate high-density lipoprotein synthesis and regulate endothelial nitric oxide to protect against cardiovascular disease, have a cardioprotective role in heart failure, protect against neurodegenerative pathological changes, promote osteoblast differentiation, and also play a pivotal role as an anti-inflammatory mediator in COPD. However, there are controversial results suggesting that SIRT1 has an effect in protecting against DNA damage and accumulation of mutations, and preventing tumorigenesis. In addition, a high level of SIRT1 can induce cardiomyopathy and even heart failure. This article reviews recent developments relating to these issues.
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Authors | Li Zeng, Rui Chen, Fengxia Liang, Hiroshi Tsuchiya, Hiroshi Murai, Takeshi Nakahashi, Kunimitsu Iwai, Takashi Takahashi, Tsugiyasu Kanda, Shigeto Morimoto |
Journal | Geriatrics & gerontology international
(Geriatr Gerontol Int)
Vol. 9
Issue 1
Pg. 7-15
(Mar 2009)
ISSN: 1447-0594 [Electronic] Japan |
PMID | 19260974
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Review)
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Chemical References |
- SIRT1 protein, human
- Sirtuin 1
- Sirtuins
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Topics |
- Age Factors
- Aged
- Geriatrics
- Heart Diseases
(etiology)
- Humans
- Metabolic Diseases
(etiology)
- Neoplasms
(etiology)
- Sirtuin 1
- Sirtuins
(physiology)
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