Nanomedicine has become a comprehensive field of medical science since the invention of nanoparticles namely nanotechnology. Uses of nanocarrier ease the way to deliver drugs more easily to deal with deadly diseases like cancer. Gastric cancer, another common form of cancer worldwide has little treatment option which makes it dangerous to deal with. Use of nanoparticles could boost up the process of developing new drugs in order to deal with this life threatening disease.
From the birth of mankind, cancer is known as one of the most notorious and deadly diseases human kinds has ever faced on this earth. Many methods and ways are implemented to eliminate this disease and the number is still on the increasing side. It's been a couple of decades that the idea of nanotechnology was first introduced, where nanoparticle is part of that. Cerium oxide nanoparticle also known as nanoceria is one of the metal oxide nanoparticles which holds promise to treat cancer effectively. Scientists have found fruitful result ignoring the drawbacks of this particular particle and there are ongoing researches to unlock the full potential of cerium oxide nanoparticle in the case of cancer treatment as well as eliminate its drawbacks.
Background Different parts of the medicinal plant Tamarindus indica L. are full of phytochemicals that are able to reduce elevated blood pressure, blood sugar and lipids. These pharmacological effects are due to the presence of antioxidant type compounds in those parts of the plant. This study was aimed to explore the molecular mechanism of anti-obesity effects of ethanolic extract of T. indica L. leaves (TILE) through the evaluation of biochemical parameters and gene expression analysis in high-fat diet (HFD) consuming Wistar rats. Methods Male Wistar rats were supplied with a standard diet (SD), or HFD, or HFD with 100 mg/kg or 200 mg/kg or 400 mg/kg TILE for 8 weeks. The body weight, liver weight, fat weight, plasma lipids, and oxidative stress-related parameters were measured. The transcript levels of different adipogenesis related transcription factors, lipogenic enzymes, and lipolytic enzymes were also evaluated by quantitative real-time PCR. Result Phytochemical analysis demonstrated that TILE is enriched with a substantial level of polyphenols (287.20 ± 9.21 mg GAE/g extract) and flavonoids (107.52 ± 11.12 mg QE/g extract) which might be the reason of significant antioxidant and radical scavenging activities. Feeding of TILE (400 mg/kg/day) to HFD-fed rats increased activity of superoxide dismutase and catalase which is reflected as a significant reduction of oxidative stress markers like nitric oxide and malondialdehyde. TILE (400 mg/kg/day) feeding also down-regulated the mRNA levels of proadipogenic transcription factors including liver X receptor alpha (LXRα), peroxisome proliferator-activated receptor gamma (PPARγ), and sterol regulatory element-binding protein 1c (SREBP1c) in diet-induced obese rats. As a consequence of this, the mRNA level of lipogenic enzymes like acetyl-CoA carboxylase (ACC), fatty acid synthase (FAS), diacylglycerol acyltransferase (DGAT), and HMG-CoA reductase was down-regulated with a parallel up-regulation of the transcript level of lipolytic enzyme, hormone-sensitive lipase (HSL). Conclusion Observations from this study indicate that antioxidant-rich TILE can reduce HFD-induced body weight, fat weight and liver weight as well as blood lipids through down-regulating the gene expression of proadipogenic transcription factors and lipogenic enzymes with a concerted diminution of the gene expression of lipolytic enzyme, HSL.
Background: Dillenia indica (Family: Dilleniaceae) is an antioxidant-rich edible fruit-bearing medicinal plant. The fruit of this plant (known as elephant apple) has many uses in traditional medicine. Objective: By considering its antioxidant content and ameliorating effects this study was aimed to evaluate the antiadipogenic effects of D. indica fruit extract (DIFE) in high-fat diet (HFD) fed obese rats. Methods: Male Wistar rats were fed with a standard diet (SD), or high-fat diet (HFD), or HFD with 100 mg/kg or 200 mg/kg or 400 mg/kg DIFE for 8 weeks. The fruit extract was given orally by feeding gavage. The body weight, liver weight, visceral fat weight, plasma lipids, and oxidative stress-related parameters were measured. The mRNA level of different adipogenesis related transcription factors, lipogenic and lipolytic enzymes was also evaluated. Results: Consumption of DIFE daily (400 mg/kg) for 8 weeks resulted in a significant reduction of high-fat diet-induced body weight, liver weight, visceral fat weight, total cholesterol, and LDL-cholesterol level. High-fat diet-mediated elevation of oxidative stress markers was also lowered, with a parallel augmentation of the activities of antioxidant enzymes, due to 400 mg/kg DIFE feeding. DIFE also down-regulated the mRNA level of important pro-adipogenic factors like PPARγ, LXRα, and SREBP1c which consequently down-regulated the transcript levels of lipogenic enzymes: ACC, FAS, HMHCR, and DGAT. The transcript level of lipolytic enzyme, HSL was also down-regulated in 400 mg/kg DIFE-fed rats. Conclusion: These findings indicate that the antioxidant-rich ethanolic extract of D. indica fruit can down-regulate the gene expression of pro-adipogenic transcription factors and lipid metabolizing enzymes and thus can suppress dietinduced obesity in Wistar rat.
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