gingerol and Body-Weight

Obesity is one of the major health problems across the world and the leading cause of death. Natural bioactive functional compounds (catechin, Cat and gingerol, Gin) have been reported to control obesity. The application of a nanoparticulate (NPs) delivery system has shown greater efficacy in the treatment of different diseases. The present study was designed to prepare the Cat-Gin silver nanoparticles (AgNPs) using the microwave method. The prepared Cat-Gin-AgNPs were characterized for particle size, zeta potential, encapsulation efficiency and drug release. Further, it was evaluated for anti-obesity activity (body weight, total abdominal fat, lipid profile and liver profile) using a high-fed diet (HFD) induced obesity model. The formulated Cat-Gin-AGNPs showed nano-metric size (110 ± 4.65 nm), polydispersity index (PDI) of 0.27 ± 0.03, and surface charge (-17.6 ± 2.6 mV) with a spherical shape. It also depicted high encapsulation efficiency (<80 %) with prolonged drug release behaviour (Cat - 84.34 ± 4.12 % and Gin - 72.33 ± 3.87 %). The in vivo study parameters revealed a significant (p ≤ 0.001) reduction in body weight, food intake and total abdominal fat. The biochemical results displayed a reversal in altered biochemical parameters to the normal range (Group 4) as compared to HFD control (Group 2). It also helps restored the liver enzymes in obese rats. The results of the study highlighted the applicability of Cat-Gin-AGNPs as a novel delivery system in the treatment of obesity.

Topics: Animals; Body Weight; Catechin; Metal Nanoparticles; Nanomedicine; Obesity; Rats; Silver

The present study investigated the cardioprotective properties of 6-gingerol against alcohol-induced ROS-mediated cardiac tissue damage in rats. Experiments were conducted on 4 groups of rats, orally treated with control, 6-gingerol (10 mg/kg body weight), alcohol (6 g/kg body weight) and combination of 6-gingerol plus alcohol for two-month. In the results, we found 6-ginger treatment to alcohol-fed rats substantially suppressed ROS production in cardiac tissue. Alcohol-induced elevated 8-OHDG and protein carbonyls which represent oxidative modification of DNA and proteins were completely reversed by 6-gingerol. This was further endorsed by restored superoxide dismutase and catalase activities with 6-gingerol against alcohol-induced loss. The elevated cardiac biomarkers (CK-MB, cTn-T, cTn-I) and dyslipidemia in alcohol-intoxicated rats was significantly reversed by 6-gingerol. Furthermore, alcohol-induced apoptosis characterized by overexpression of cytochrome C, caspase-8 and caspase-9 was diminished with 6-gingerol treatment. Transmission electron microscope images conferred the cardioprotective properties of 6-gingerol as we have seen less structural derangements in mitochondria and reappearance of myofilaments. Our findings conclude that 6-ginger effectively protect alcohol-induced ROS-mediated cardiac tissue damage, which may be due to its potent antioxidant efficacy. Therefore, 6-gingerol could be a potential therapeutic molecule that can be used in the treatment of alcohol-induced myocardial injury.

Topics: Animals; Antioxidants; Apoptosis; Body Weight; Catechols; Fatty Alcohols; Oxidative Stress; Rats; Zingiber officinale

Exposure to benzo[a]pyrene (BaP), the most toxic polycyclic aromatic hydrocarbon and a procarcinogen, is a global health concern which necessitates preventive measures. [6]-Gingerol (6-G), the most pharmacologically active constituent of ginger has been reported to promote gut health in various experimental settings. This study investigated the role of 6-G in BaP-induced colonic oxidative and inflammatory stress responses in mice. Experimental mice were randomly assigned into five groups of eight mice each and were orally gavage with BaP (125 mg/kg) singly or in combination with 6-G at 50 and 100 mg/kg for 14 consecutive days. Following sacrifice, the colonic activities of superoxide dismutase (SOD), catalase (CAT), glutathione S-transferase (GST), myeloperoxidase (MPO) as well as levels of glutathione (GSH), nitrites and lipid peroxidation (LPO) were assessed spectrophotometrically. Moreover, colonic concentration of epoxide hydrolase (EPXH), tumor necrosis factor alpha (TNF-α), interleukin-1 β (IL-1β), cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) were assessed using ELISA. Administration of 6-G augmented BaP detoxification and colonic antioxidant status by increasing the EPXH, GST, SOD and CAT activities, GSH level with concomitant decrease in MDA level when compared with BaP alone group. In addition, 6-G suppressed BaP-induced colonic inflammation by decreasing MPO activity as well as nitrites, TNF-α, IL-1β, COX-2 and iNOS levels when compared with BaP alone group. In conclusion, 6-G protected against a decrease in colonic epoxide detoxifying enzymes and antioxidant defense mechanisms caused by BaP.

Topics: Animals; Antioxidants; Benzo(a)pyrene; Body Weight; Catalase; Catechols; Colon; Cyclooxygenase 2; Fatty Alcohols; Glutathione; Male; Mice; Mice, Inbred BALB C; Nitric Oxide; Nitric Oxide Synthase Type II; Oxidative Stress; Superoxide Dismutase

Chlorpyrifos (CPF) is an organophosphorus pesticide widely used in agricultural applications and household environments. 6-Gingerol-rich fraction from Zingiber officinale (Ginger, 6-GRF) has been reported to possess potent anti-oxidative, anti-inflammatory and anti-apoptotic properties. Here, we investigated the protective properties of 6-GRF on CPF-induced oxidative damage and inflammation in the brain, ovary and uterus of rats. Five groups of rats containing 14 rats/group received corn oil (control), CPF (5 mg/kg), 6-GRF (100 mg/kg), CPF (5 mg/kg) + 6-GRF (50 mg/kg) and CPF (5 mg/kg) + 6-GRF (100 mg/kg) through gavage once per day for 35 days respectively. The results showed that 6-GRF protected against CPF-induced increases in oxidative stress ((hydrogen peroxide (H

Topics: ADAM17 Protein; Animals; Body Weight; Brain; Catechols; Chlorpyrifos; Fatty Alcohols; Female; Inflammation; Ovary; Oxidative Stress; Plant Extracts; Rats; Rats, Wistar; Uterus; Zingiber officinale

Adenosine monophosphate (AMP)-activated protein kinase (AMPK) plays a central role in metabolic homeostasis and regulation of inflammatory responses through attenuation of nuclear factor kappa-B (NF-κB), Thus AMPK may be a promising pharmacologic target for the treatment of various chronic inflammatory diseases. We examined the effect of 6-gingerol, an active ingredient of ginger on AMPK-NF-κB pathway in high fat diet (HFD) rats in comparison to fish oil.. Protein levels of AMPK-α1 and phosphorylated AMPK-α1 were measured by western blot while Sirtuin 6 (Sirt-6), resistin and P65 were estimated by RT-PCR, TNF-α was determined by ELISA, FFAs were estimated chemically as well as the enzymatic determination of the metabolic parameters.. 6-Gingerol substantially enhanced phosphorylated AMPK-α1 more than fish oil and reduced the P65 via upregulation of Sirt-6 and downregulation of resistin, and resulted in attenuation of the inflammatory molecules P65, FFAs and TNF-α more than fish oil treated groups but in an insignificant statistical manner, those effects were accompanied by a substantial hypoglycemic effect.. Gingerol treatment effectively modulated the state of inflammatory privilege in HFD group and the metabolic disorders via targeting the AMPK-NF-κB pathway, through an increment in the SIRT-6 and substantial decrement in resistin levels.

Topics: Adipose Tissue; AMP-Activated Protein Kinases; Animals; Body Weight; Catechols; Diet, High-Fat; Fatty Alcohols; Fish Oils; Male; NF-kappa B; Phosphorylation; Rats; Rats, Wistar; Signal Transduction; Sirtuins; Transcription Factor RelA; Tumor Necrosis Factor-alpha; Zingiber officinale

Obesity, generally linked to hyperlipidemia, has been occurring of late with distressing alarm and has now become a global phenomenon casting a huge economic burden on the health care system of countries around the world. The present study investigated the effects of gingerol over 30 days on the changes in HFD-induced obese rats in marker enzymes of lipid metabolism such as fatty-acid synthase (FAS), Acetyl CoA Carboxylase (ACC), Carnitine Palmitoyl Transferase-1(CPT-1), HMG co-A Reductase (HMGR), Lecithin Choline Acyl Transferase (LCAT) and Lipoprotein Lipase (LPL) and inflammatory markers (TNF-α and IL-6). The rats were treated orally with gingerol (75 mg kg(-1)) once daily for 30 days with a lorcaserin-treated group (10 mg kg(-1)) included for comparison. Changes in body weight, glucose, insulin resistance and expressions of lipid marker enzymes and inflammatory markers in tissues were observed in experimental rats. The administration of gingerol resulted in a significant reduction in body weight gain, glucose and insulin levels, and insulin resistance, which altered the activity, expressions of lipid marker enzymes and inflammatory markers. It showed that gingerol had significantly altered these parameters when compared with HFD control rats. This study confirms that gingerol prevents HFD-induced hyperlipidemia by modulating the expression of enzymes important to cholesterol metabolism.

Topics: Animals; Benzazepines; Biomarkers; Body Weight; Catechols; Diet, High-Fat; Fatty Alcohols; Gene Expression Regulation, Enzymologic; Insulin Resistance; Interleukin-6; Lipid Metabolism; Male; Obesity; Rats; Rats, Wistar; Tumor Necrosis Factor-alpha

To determine the effects of a [6]-gingerol analogue (6G), a major chemical component of the ginger rhizome, and its stable analogue after digestion in simulated gastric fluid, aza-[6]-gingerol (A6G), on diet-induced body fat accumulation, we synthesized 6G and A6G. Mice were fed either a control regular rodent chow, a high-fat diet (HFD), or a HFD supplemented with 6G and A6G. Magnetic resonance imaging adiposity parameters of the 6G- and A6G-treated mice were compared with those of control mice. Supplementation with 6G and A6G significantly reduced body weight gain, fat accumulation, and circulating levels of insulin and leptin. The mRNA levels of sterol regulatory element-binding protein 1c (SREBP-1c) and acetyl-CoA carboxylase 1 in the liver were significantly lower in mice fed A6G than in HFD control mice. Our findings indicate that A6G, rather than 6G, enhances energy metabolism and reduces the extent of lipogenesis by downregulating SREBP-1c and its related molecules, which leads to the suppression of body fat accumulation.

Topics: Acetyl-CoA Carboxylase; Adiponectin; Adipose Tissue; Amides; Animals; Anti-Obesity Agents; Blood Glucose; Body Weight; Catechols; Dietary Fats; Energy Metabolism; Fatty Alcohols; Glucose Tolerance Test; Guaiacol; Insulin; Leptin; Lipogenesis; Liver; Male; Metabolic Syndrome; Mice; Mice, Inbred ICR; RNA, Messenger; Sterol Regulatory Element Binding Protein 1

Natural dietary anti-obesogenic phytochemicals may help combat the rising global incidence of obesity. We aimed to identify key hepatic pathways targeted by anti-obsogenic ginger phytochemicals fed to mice.. Weaning mice were fed a high-fat diet containing 6-gingerol (HFG), zerumbone (HFZ), a characterized rhizome extract of the ginger-related plant Alpinia officinarum Hance (high fat goryankang, HFGK) or no phytochemicals (high-fat control, HFC) for 6 wks and were compared with mice on a low-fat control diet (LFC). Increased adiposity in the HFC group, compared with the LFC group, was significantly (p<0.05) reduced in the HFG and HFGK groups without food intake being affected. Correlation network analysis, including a novel residuals analysis, was utilized to investigate relationships between liver proteomic data, lipid and cholesterol biomarkers and physiological indicators of adiposity. 6-Gingerol significantly increased plasma cholesterol but hepatic farnesyl diphosphate synthetase, which is involved in cholesterol biosynthesis was decreased, possibly by negative feedback. Acetyl-coenzyme A acyltransferase 1 and enoyl CoA hydratase, which participate in the β-oxidation of fatty acids were significantly (p<0.05) increased by consumption of phytochemical-supplemented diets.. Dietary ginger phytochemicals target cholesterol metabolism and fatty acid oxidation in mice, with anti-obesogenic but also hypercholesterolemic consequences.

Topics: Acetyl-CoA C-Acyltransferase; Adiposity; Alpinia; Animals; Anti-Obesity Agents; Biomarkers; Body Weight; Catechols; Cholesterol; Diet, Fat-Restricted; Diet, High-Fat; Enoyl-CoA Hydratase; Fatty Alcohols; Geranyltranstransferase; Liver; Mice; Mice, Inbred C57BL; Plant Extracts; Principal Component Analysis; Proteins; Proteomics; Sesquiterpenes; Zingiber officinale

Fructose supplementation produced cardinal features of Syndrome-X including significant elevations in seum cholesterol, triglyceride, glucose and insulin and also in body weight. While treatment with methanolic extract of dried rhizomes of Zingiber officinale produced a significant reduction in fructose induced elevation in lipid levels, bodyweight, hyperglycemia and hyperinsulinemia, treatment with ethyl acetate extract of Z officinale did not poduce any significant change in either of the last two parameters. However, it produced a significant reduction in elevated lipid levels and body weight The concentration of 6-gingerol was found to be higher in methanolic extract and less in ethyl acetate extract. The results suggest that the methanolic extract of Z officinale produces better effects as compared to ethyl acetate extract in fructose induced hyperlipidemia associated with insulin resistance. The extent of activity appears to be dependent on the concentration of 6-gingerol present in the extracts.

Topics: Animals; Body Weight; Catechols; Diabetes Mellitus, Experimental; Fatty Alcohols; Fructose; Hyperinsulinism; Hyperlipidemias; Metabolic Syndrome; Plant Extracts; Rats; Rhizome; Zingiber officinale