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Omega-3 Polyunsaturated Fatty Acids Prevent Nonalcoholic Steatohepatitis (NASH) and Stimulate Adipogenesis

Department of Biological Sciences, Institute of Environmental Sciences, Chemical and Pharmaceutical, Universidade Federal de São Paulo—UNIFESP, Diadema 09913-130, Brazil
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Frederic Capel
Received: 29 December 2020 / Revised: 1 February 2021 / Accepted: 6 February 2021 / Published: 15 February 2021
(This article belongs to the Special Issue Marine Omega-3s and Human Health)
The increasing impact of obesity on global human health intensifies the importance of studies focusing on agents interfering with the metabolism and remodeling not only of the white adipose tissue (WAT) but also of the liver. In the present study, we have addressed the impact of n-3 PUFA in adipose cells’ proliferation and adipogenesis, as well as in the hepatic lipid profile and morphology. Mice were induced to obesity by the consumption of a high-fat diet (HFD) for 16 weeks. At the 9th week, the treatment with fish oil (FO) was initiated and maintained until the end of the period. The FO treatment reduced the animals’ body mass, plasma lipids, glucose, plasma transaminases, liver mass, triacylglycerol, and cholesterol liver content when compared to animals consuming only HFD. FO also decreased the inguinal (ing) WAT mass, reduced adipocyte volume, increased adipose cellularity (hyperplasia), and increased the proliferation of adipose-derived stromal cells (AdSCs) which corroborates the increment in the proliferation of 3T3-L1 pre-adipocytes or AdSCs treated in vitro with n-3 PUFA. After submitting the in vitro treated (n-3 PUFA) cells, 3T3-L1 and AdSCs, to an adipogenic cocktail, there was an increase in the mRNA expression of adipogenic transcriptional factors and other late adipocyte markers, as well as an increase in lipid accumulation when compared to not treated cells. Finally, the expression of browning-related genes was also higher in the n-3 PUFA treated group. We conclude that n-3 PUFA exerts an attenuating effect on body mass, dyslipidemia, and hepatic steatosis induced by HFD. FO treatment led to decreasing adiposity and adipocyte hypertrophy in ingWAT while increasing hyperplasia. Data suggest that FO treatment might induce recruitment (by increased proliferation and differentiation) of new adipocytes (white and/or beige) to the ingWAT, which is fundamental for the healthy expansion of WAT. View Full-Text
Keywords: obesity; fish oil; beige adipocytes; liver; AdScs obesity; fish oil; beige adipocytes; liver; AdScs
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MDPI and ACS Style

Antraco, V.J.; Hirata, B.K.S.; de Jesus Simão, J.; Cruz, M.M.; da Silva, V.S.; da Cunha de Sá, R.D.C.; Abdala, F.M.; Armelin-Correa, L.; Alonso-Vale, M.I.C. Omega-3 Polyunsaturated Fatty Acids Prevent Nonalcoholic Steatohepatitis (NASH) and Stimulate Adipogenesis. Nutrients 2021, 13, 622.

AMA Style

Antraco VJ, Hirata BKS, de Jesus Simão J, Cruz MM, da Silva VS, da Cunha de Sá RDC, Abdala FM, Armelin-Correa L, Alonso-Vale MIC. Omega-3 Polyunsaturated Fatty Acids Prevent Nonalcoholic Steatohepatitis (NASH) and Stimulate Adipogenesis. Nutrients. 2021; 13(2):622.

Chicago/Turabian Style

Antraco, Vitor J., Bruna K.S. Hirata, Jussara de Jesus Simão, Maysa M. Cruz, Viviane S. da Silva, Roberta D.C. da Cunha de Sá, Fernanda M. Abdala, Lucia Armelin-Correa, and Maria I.C. Alonso-Vale 2021. "Omega-3 Polyunsaturated Fatty Acids Prevent Nonalcoholic Steatohepatitis (NASH) and Stimulate Adipogenesis" Nutrients 13, no. 2: 622.

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