This study aimed to investigate the preventive role of Elateriospermum tapos seed extract against obese Sprague Dawley rats through assessment of bodyweight, caloric intake, organs weight, biological assays and histopathology. Thirty-six male Sprague Dawley rats were assigned into six groups of normal control (G1) group fed with standard chow diet, negative control (G2), positive control (G3) and treatment groups (G4, G5 and G6) were on high-fat and cafeteria diet for 9 weeks. G3 group was given 10 mg kg−1 of Orlistat while treatment groups were supplemented with E. tapos seed extract of 5 mg kg−1, 25 mg kg−1 and 125 mg kg−1 orally daily for another 10 weeks. Bodyweight and food intake were monitored weekly. At the end, liver, retroperitoneal white adipose tissue (rpWAT) and blood were collected for analysis of total cholesterol (TC), triglycerides (TG), low-density (LDL-C) and high density lipoprotein (HDL-C). The E. tapos seed treated groups showed significant (p < 0.05) reduction in bodyweight, caloric intake, liver and rpWAT weight as compared to the G2 group. G6 group showed tremendous improvement of liver histopathology and biological assay. There was a significant decrease (p < 0.05) of TC, TG, and LDL-C level and significant increase (p < 0.05) of HDL-C in the E. tapos seed treated group as compared to G2 group. Based on the findings, E. tapos seed extract exhibited a great potential as an anti-obesity. The extract promoted the fat oxidation by removing the uptake and storage of fat by the adipose cells and also decrease the fatty acid synthesis.
Elateriospermum tapos (E. tapos) is a natural tropical plant that possess a wide range of health benefits. Recent discovery proves that E. tapos extract is able to reduce weight, increase cognitive performance, and ameliorate anxiety and stress hormone. However, this extraction has not been incorporated into yoghurt, and no toxicity studies have been done previously to prove its safety. Thus, this study was aimed to formulate the ethanolic extracted E. tapos into yoghurt and access the toxicological effects on rodents. Forty female Sprague Dawley (SD) rats were used in this study and force fed with either one of the following doses of 250, 500, 1000, or 2000 mg/kg, while the control group received normal saline. The nutritional analysis result showed that the newly formulated yoghurt comprised 328 kJ of energy per 100 mL of servings, 3.6 g of fats, 8.2 g of carbohydrates, 2.7 g of total protein, and 1.2 g of fibre. The peak intensity of Lactobacillus species was observed at 1.6 × 105 CFU/g with a titratable acidity as lactic acid of 0.432 CFU/g, indicating the ability of the formulated yoghurt in stimulating the growth of Lactobacilli. In the experimental study, the E. tapos yoghurt in a single dose (2000 mg/kg) did not show any treatment related to toxicity in any of the rats observed in an additional 14 days. There were no changes in body weight, food and water intake, plasma biochemistry (ALT, AST, ALP, and creatinine), haematological products, and organ weights of the treated groups compared to the subacute control groups. Histological examination of all organs including liver, heart, and kidney were comparable to the control groups. In toto, oral consumptions of E. tapos yoghurt did not induce any adverse effects on rodents.
Background Nonalcoholic fatty liver disease (NAFLD) is indicated by liver steatosis without excessive alcohol use or other liver disease. Several studies have reported that metabolic syndromes such as obesity, type 2 diabetes mellitus, and dyslipidemia have a linear correlation associated with NAFLD pathophysiology. One of the characteristics of dyslipidemia in NAFLD is increase in serum triglycerides. This study aimed to develop a model of NAFLD characterized by an increase in serum triglyceride levels and histological profile of liver steatosis by high-fat diet in rats. Methods Twelve Wistar rats were fed with pellets enriched with 60% fat. They were housed individually, and the remaining pellets were weighted every day for intake evaluation. Blood samples were collected at day 0 and at the end of each trial period at days 7, 14, 21, and 28 for the measurement of triglyceride levels. Every animal from each group was also sacrificed for liver histopathological examination. Results This study has established developing the NAFLD animal model by induction of a high-fat diet. The levels of serum triglycerides were increased from baseline 80.41 ± 12.82 to 1152.00 ± 73.62, 493.66 ± 159.98, 556.00 ± 120.79, and 489.00 ± 156.75 mg/dL at days 7, 14, 21, and 28, respectively. Liver histology also showed liver steatosis development, inflammation, and hepatocellular ballooning, which were associated with the NAFLD state. Conclusions High-fat diet in rats induced hypertriglyceridemia along with NAFLD-like liver histopathology.
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