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Abstract Title:

Protective Effects of Nicotinamide Adenine Dinucleotide and Related Precursors in Alzheimer's Disease: A Systematic Review of Preclinical Studies.

Abstract Source:

J Mol Neurosci. 2021 Apr 28. Epub 2021 Apr 28. PMID: 33907963

Abstract Author(s):

Leila Hosseini, Javad Mahmoudi, Fariba Pashazadeh, Hanieh Salehi-Pourmehr, Saeed Sadigh-Eteghad

Article Affiliation:

Leila Hosseini

Abstract:

Data from preclinical studies propose nicotinamide adenine dinucleotide (NAD) as a neuroprotective and bioenergetics stimulant agent to treat Alzheimer's disease (AD); however, there seems to be inconsistency between behavioral and molecular outcomes. We performed this systematic review to provide a better understanding of the effects of NADin rodent AD models and to summarize the literature.Studies were identified by searching PubMed, EMBASE, Scopus, Google Scholar, and the reference lists of relevant review articles published through December 2020. The search strategy was restricted to articles about NAD, its derivatives, and their association with cognitive function in AD rodent models. The initial search yielded 320 articles, of which 11 publications were included in our systematic review.Based on the primary outcomes, it was revealed that NADimproves learning and memory. The secondary endpoints also showed neuroprotective effects of NADon different AD models. The proposed neuroprotective mechanisms included, but were not limited to, the attenuation of the oxidative stress, inflammation, and apoptosis, while enhancing the mitochondrial function.The current systematic review summarizes the preclinical studies on NADprecursors and provides evidence favoring the pro-cognitive effects of such components in rodent models of AD.

Study Type : Review

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