Abnormal glucose metabolism causes various complications in many metabolic diseases such as obesity, hypertension, cardiovascular diseases and mainly diabetes. But commonly used oral hypoglycemic drugs cause severe side effects. Hence, there is a need to find the medicine without side effects. Compounds of medicinal plants were nontoxic, inexpensive and less or no side effects. Syzygium paniculatum Gaertn. (Magenta Cherry) is one of the important medicinal plants in the genus Syzygium . The fruit of S. paniculatum is sour apple-like flavor which tribes using for diabetes without scientific evidence. The purpose of study was to investigate the phytochemical analysis, antihyperglycemic, antihyperlipidemic, antioxidative stress and antioxidant activities of the daily oral administration of the fruit aqueous extract of S. paniculatum at a dose of 100 mg/kg bw over a period of 120 days in Streptozotocin-induced diabetic rats. The plant material collected, shade dried and the extracts prepared in increasing order of polarity and screened for different phytoconstituents by Harborne method. The extract with significant antihyperglycemic activity evaluated for antihyperlipidemic, antioxidative stress, antioxidant activity and also for insulin resistance by OGTT. The levels of insulin, HbA1c, lipid profile, glycogen, total proteins, liver and kidney functional markers were measured. The changes in antioxidant defense system were evaluated by TBARS assay. Histopathological examination of pancreas sections carried by hematoxylin and eosin stain. The findings confirm that S. paniculatum possesses potential antihyperglycemic, antihyperlipidemic, antioxidative stress and antioxidant activity. The histological changes also coincide with its potential on insulin secretion, glycemic control, lipid metabolisms, oxidative stress and antioxidant enzyme activities. This investigation confirms the traditional use of this plant in the folk medicine.

The high fat diet alters intestinal microbiota due to increased intestinal permeability and susceptibility to microbial antigens leads to metabolic endotoxemia. But probiotic juices reported for various health benefits. In this background we hypothesized that pectinase treated probiotic banana juice has diverse effects on HFD induced obesity and non-alcoholic steatohepatitis. 20 weeks fed HFD successfully induced obesity and its associated complications in experimental rats. The supplementation of probiotic banana juice for 5 months at a dose of 5 mL/kg bw/day resulted significant decrease (p < 0.05) in body weight (380 ± 0.34), total fat (72 ± 0.8), fat percentage (17 ± 0.07) and fat free mass (165 ± 0.02). Reduction (p < 0.05) in insulin resistance (5.20 ± 0.03), lipid profile (TC 120 ± 0.05; TG 160 ± 0.24; HDL 38 ± 0.03), liver lipid peroxidation (0.7 ± 0.01), hepatic enzyme markers (AST 82 ± 0.06; ALT 78 ± 0.34; ALP 42 ± 0.22), and hepatic steatosis by increasing liver antioxidant potential (CAT 1.4 ± 0.30; GSH 1.04 ± 0.04; SOD 0.82 ± 0.22) with normal hepatic triglycerides (15 ± 0.02) and glycogen (0.022 ± 0.15) contents and also showed normal liver size, less accumulation of lipid droplets with only a few congestion. It is concluded that the increased intestinal S. cerevisiae yeast can switch anti-obesity, antidiabetic, antioxidative stress, antioxidant and anti-hepatosteatosis effect. This study results will have significant implications for treatment of NAFLD.

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