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Pàgina inicial > Articles > Articles publicats > Nicotinamide protects against diet-induced body weight gain, increases energy expenditure, and induces white adipose tissue beiging |
Data: | 2021 |
Resum: | Scope: Interventions that boost NAD+ availability are of potential therapeutic interest for obesity treatment. The potential of nicotinamide (NAM), the amide form of vitamin B3 and a physiological precursor of nicotinamide adenine dinucleotide (NAD)+, in preventing weight gain has not previously been studied in vivo. Other NAD+ precursors have been shown to decrease weight gain; however, their impact on adipose tissue is not addressed. Methods and results: Two doses of NAM (high dose: 1% and low dose: 0. 25%) are given by drinking water to C57BL/6J male mice, starting at the same time as the high-fat diet feeding. NAM supplementation protects against diet-induced obesity by augmenting global body energy expenditure in C57BL/6J male mice. The manipulation markedly alters adipose morphology and metabolism, particularly in inguinal (i) white adipose tissue (iWAT). An increased number of brown and beige adipocyte clusters, protein abundance of uncoupling protein 1 (UCP1), mitochondrial activity, adipose NAD+, and phosphorylated AMP-activated protein kinase (P-AMPK) levels are observed in the iWAT of treated mice. Notably, a significant improvement in hepatic steatosis, inflammation, and glucose tolerance is also observed in NAM high-dose treated mice. Conclusion: NAM influences whole-body energy expenditure by driving changes in the adipose phenotype. Thus, NAM is an attractive potential treatment for preventing obesity and associated complications. |
Ajuts: | Fundació la Marató de TV3 201602.30.31 Instituto de Salud Carlos III PI17/00232 Instituto de Salud Carlos III PI18/0164 Instituto de Salud Carlos III PI17/01362 Agència de Gestió d'Ajuts Universitaris i de Recerca FI-DGR2014 Instituto de Salud Carlos III CPII18/00004; |
Nota: | Altres ajuts: Ministerio de Educación (República de Paraguay), BCAL04-451 - 3824321 |
Drets: | Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió sotmesa a revisió |
Matèria: | Adiposity ; Beiging ; Fatty liver ; Inflammation ; SDG 3 - Good Health and Well-being |
Publicat a: | Molecular Nutrition and Food Research, Vol. 65 Núm. 11 (2021) , p. 2100111, ISSN 1613-4133 |
30 p, 385.9 KB |