ABSTRACT
@#Introduction: Obesity has been linked to coronary artery disease, type II diabetes, metabolic syndrome, stroke, and cancer. Pomegranate (Punica granatum; PG) has been used extensively in folk medicine for several therapeutic purposes. The goal of this study is to investigate the anti-obesity effect of PG peel and pulp methanolic extracts in highfat diet (HFD)-induced Sprague-Dawley rats. Methods: The animals were separated into 7 groups namely Normal control group (normal diet); HFD-induced only as negative control group, and positive control group (HFD-induced + orlistat); treatment group included HFD-induced + peel 125 mg/kg, HFD-induced +peel 250 mg/kg, HFD-induced + pulp 125 mg/kg and HFD-induced + pulp 250 mg/kg. Results: It was observed that methanolic extract of peel and pulp PG 250 mg/kg showed low increment of body weight with a reduction in weight of liver, visceral fat, and subcutaneous fat. Compared to the negative control group, total cholesterol, triglyceride, and low-density lipoprotein levels were shown to be lowered for PG peel and pulp groups also showed higher values in high-density lipoprotein. Conclusion: PG reduced obesity-related markers in blood, liver, and adipose tissue and inhibited obesity caused by a high-fat diet probably because of its antioxidant properties.
ABSTRACT
@#Introduction: Ultraviolet (UV) A is the longest wavelength of UV radiation, accounts for approximately 95% of the radiation reaching the earth's surface. It can penetrate deeply into the skin layer and able to induce photoaging and photocarcinogenesis through the activation of reactive oxygen species (ROS). Polysaccharides-containing Pleurotus flabellatus (known as a pink oyster mushroom) has antioxidative properties and may inhibit free radical activities generated from UV radiation. Hence, this present study was to evaluate the antioxidative and photoprotective properties of exopolysaccharides (ExPFE) and exopolysaccharides (EnPFE) of Pleurotus flabellatus extracts on UVA irradiated human dermal fibroblast (HS-27) cell line. Methods: The antioxidant level of ExPFE and EnPFE was determined using 1,1-Diphenyl-2-picrylhydrazyl (DPPH) scavenging assay, while both cytotoxicity and photoprotective effects of the extracts on the HS-27 cell line were determined using CellTiter-Blue® cell viability assay. The effects of ExPFE and EnPFE on the HS-27 cell migration was evaluated using the scratch assay. Results: Both ExPFE and EnPFE exhibited respectable antioxidant and scavenging activity in DPPH. The extracts also demonstrated a non-cytotoxicity, but photoprotective effects to the HS-27 cells by increasing the percentage of cell viability and enhancing cell migration activity upon UVA exposure. Conclusion: The ExPFE and EnPFE exhibit antioxidative and photoprotective effects on UVA irradiated HS-27 cell line. This study suggests that pink oyster polysaccharides could be a potential natural bioactive compound for skin protection against UVA radiation.