Omega-3 Fatty Acids Protect Renal Functions by Increasing Docosahexaenoic Acid-derived Metabolite Levels in SHR.Cg-Lepr(cp)/NDmcr Rats, a Metabolic Syndrome Model

Overview

Journal Molecules

Publisher MDPI

Specialty Biology

Date 2014 Mar 20

PMID 24642910

Citations 14

Authors

Masanori Katakura

Michio Hashimoto

Takayuki Inoue

Abdullah Al Mamun

Yoko Tanabe

Ryo Iwamoto

Makoto Arita

Satoru Tsuchikura

Osamu Shido

Affiliations

Soon will be listed here.

Abstract

The omega-3 polyunsaturated fatty acids (ω-3 PUFAs) docosahexaenoic acid (DHA) and/or eicosapentaenoic acid (EPA) protect against diabetic nephropathy by inhibiting inflammation. The aim of this study was to assess the effects of highly purified DHA and EPA or EPA only administration on renal function and renal eicosanoid and docosanoid levels in an animal model of metabolic syndrome, SHR.Cg-Lepr(cp)/NDmcr (SHRcp) rats. Male SHRcp rats were divided into 3 groups. Control (5% arabic gum), TAK-085 (300 mg/kg/day, containing 467 mg/g EPA and 365 mg/g DHA), or EPA (300 mg/kg/day) was orally administered for 20 weeks. The urinary albumin to creatinine ratio in the TAK-085-administered group was significantly lower than that in other groups. The glomerular sclerosis score in the TAK-085-administered group was significantly lower than that in the other groups. Although DHA levels were increased in total kidney fatty acids, the levels of nonesterified DHA were not significantly different among the 3 groups, whereas the levels of protectin D1, resolvin D1, and resolvin D2 were significantly increased in the TAK-085-administered group. The results show that the use of combination therapy with DHA and EPA in SHRcp rats improved or prevented renal failure associate with metabolic syndrome with decreasing triglyceride levels and increasing ω-3 PUFA lipid mediators.

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