1. Therapeutic Effects of Morinda citrifolia Linn. (Noni) Aqueous Fruit Extract on the Glucose and Lipid Metabolism in High-Fat/High-Fructose-Fed Swiss Mice.
- Author
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Inada AC, Silva GT, Silva LPRD, Alves FM, Filiú WFO, Asato MA, Junior WHK, Corsino J, Figueiredo PO, Garcez FR, Garcez WS, Silva RNOD, Santos-Eichler RAD, Guimarães RCA, Freitas KC, and Hiane PA
- Subjects
- Adipose Tissue, Animals, Diet, High-Fat, Female, Fructose, Gene Expression Regulation drug effects, Glucose-6-Phosphatase metabolism, Lipogenesis drug effects, Liver drug effects, Liver metabolism, Male, Metabolic Syndrome chemically induced, Metabolic Syndrome drug therapy, Mice, PPAR alpha metabolism, PPAR gamma metabolism, Phytotherapy, Plant Extracts therapeutic use, Sterol Regulatory Element Binding Protein 1 metabolism, Glucose metabolism, Lipid Metabolism drug effects, Metabolic Syndrome metabolism, Morinda chemistry, Plant Extracts pharmacology
- Abstract
The aim of this study was to evaluate the therapeutic effects of two different doses (250 and 500 mg/kg) of Morinda citrifolia fruit aqueous extract (AE) in high-fat/high-fructose-fed Swiss mice. The food intake, body weight, serum biochemical, oral glucose tolerance test (OGTT), and enzyme-linked immunosorbent assay (ELISA), as well as histological analyses of the liver, pancreatic, and epididymal adipose tissue, were used to determine the biochemical and histological parameters. The chemical profile of the extract was determined by ultra-fast liquid chromatography-diode array detector-tandem mass spectrometry (UFLC-DAD-MS), and quantitative real-time PCR (qRT-PCR) was used to evaluate the gene expressions involved in the lipid and glucose metabolism, such as peroxisome proliferative-activated receptors-γ (PPAR-γ), -α (PPAR-α), fatty acid synthase (FAS), glucose-6-phosphatase (G6P), sterol regulatory binding protein-1c (SREBP-1c), carbohydrate-responsive element-binding protein (ChREBP), and fetuin-A. Seventeen compounds were tentatively identified, including iridoids, noniosides, and the flavonoid rutin. The higher dose of AE (AE 500 mg/kg) was demonstrated to improve the glucose tolerance; however, both doses did not have effects on the other metabolic and histological parameters. AE at 500 mg/kg downregulated the PPAR-γ, SREBP-1c, and fetuin-A mRNA in the liver and upregulated the PPAR-α mRNA in white adipose tissue, suggesting that the hypoglycemic effects could be associated with the expression of genes involved in de novo lipogenesis.
- Published
- 2020
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