期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 22, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/ijms22073709
关键词
NAD(+); NAMPT; NMN; NR; NMNH; aging; senescence; SBI-797812; PNGL; IRW
资金
- JSPS KAKENHI [17K08569]
- Grants-in-Aid for Scientific Research [17K08569] Funding Source: KAKEN
NAD(+) is a critical metabolite that has been shown to slow down aging processes and prevent age-related diseases by supplementing NAD(+) precursors. Human clinical trials have demonstrated its potential application in addressing age-associated physiological decline.
Aging is a phenomenon underlined by complex molecular and biochemical changes that occur over time. One of the metabolites that is gaining strong research interest is nicotinamide adenine dinucleotide, NAD(+), whose cellular level has been shown to decrease with age in various tissues of model animals and humans. Administration of NAD(+) precursors, nicotinamide mononucleotide (NMN) and nicotinamide riboside (NR), to supplement NAD(+) production through the NAD(+) salvage pathway has been demonstrated to slow down aging processes in mice. Therefore, NAD(+) is a critical metabolite now understood to mitigate age-related tissue function decline and prevent age-related diseases in aging animals. In human clinical trials, administration of NAD(+) precursors to the elderly is being used to address systemic age-associated physiological decline. Among NAD(+) biosynthesis pathways in mammals, the NAD(+) salvage pathway is the dominant pathway in most of tissues, and NAMPT is the rate limiting enzyme of this pathway. However, only a few activators of NAMPT, which are supposed to increase NAD(+), have been developed so far. In this review, we will focus on the importance of NAD(+) and the possible application of an activator of NAMPT to promote successive aging.
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