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Biogerontology. 2019 Mar 5. doi: 10.1007/s10522-019-09805-6. [Epub ahead of print]

Nicotinamide adenine dinucleotide emerges as a therapeutic target in aging and ischemic conditions.

Author information

1
Drug Applied Research Center, Department of Physiology, Tabriz University of Medical Sciences, Tabriz, Iran.
2
Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran.
3
Department of Nuclear Medicine, Odense University Hospital, Odense, Denmark.
4
Department of Clinical Research, BRIDGE: Brain Research-Inter-Disciplinary Guided Excellence, University of Southern Denmark, Odense, Denmark.
5
Neuroscience Research Centre, Tabriz University of Medical Sciences, Tabriz, Iran.
6
Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran. badalzadehr@tbzmed.ac.ir.
7
Molecular Medicine Research Centre, Tabriz University of Medical Sciences, Tabriz, Iran. badalzadehr@tbzmed.ac.ir.

Abstract

Nicotinamide adenine dinucleotide (NAD+) has been described as central coenzyme of redox reactions and is a key regulator of stress resistance and longevity. Aging is a multifactorial and irreversible process that is characterized by a gradual diminution in physiological functions in an organism over time, leading to development of age-associated pathologies and eventually increasing the probability of death. Ischemia is the lack of nutritive blood flow that causes damage and mortality that mostly occurs in various organs during aging. During the process of aging and related ischemic conditions, NAD+ levels decline and lead to nuclear and mitochondrial dysfunctions, resulting in age-related pathologies. The majority of studies have shown that restoring of NAD+ using supplementation with intermediates such as nicotinamide mononucleotide and nicotinamide riboside can be a valuable strategy for recovery of ischemic injury and age-associated defects. This review summarizes the molecular mechanisms responsible for the reduction in NAD+ levels during ischemic disorders and aging, as well as a particular focus is given to the recent progress in the understanding of NAD+ precursor's effects on aging and ischemia.

KEYWORDS:

Aging; Ischemic disorders; Longevity; Mitochondria; Nicotinamide adenine dinucleotide; Nicotinamide mononucleotide

PMID:
30838484
DOI:
10.1007/s10522-019-09805-6

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