Nicotinamide adenine dinucleotide (NAD) is a ubiquitous biological molecule that participates in many metabolic reactions.
Recent studies show that NAD also plays important roles in transcriptional regulation, longevity, calorie-restriction-mediated life-span extension and age-associated diseases. It has been shown that NAD affects longevity and transcriptional silencing through the regulation of the Sir2p family, which are NAD-dependent deacetylases.
Many human diseases are associated with changes in NAD level and/or the NAD : NADH ratio, raising the possibility that the Sir2p family might play a role in these diseases.
About the Authors
Lin SJ, Guarente L. (2003) Nicotinamide adenine dinucleotide, a metabolic regulator of transcription, longevity and disease. Curr Opin Cell Biol. 2003 Apr;15(2):241-6. Department of Biology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, MA 02139, USA
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Nicotinamide adenine dinucleotide, a metabolic regulator of transcription, longevity and disease.
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