scholarly journals Antiobesity and Hypolipidemic Activity of Moringa oleifera Leaves against High Fat Diet-Induced Obesity in Rats

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Souravh Bais ◽  
Guru Sewak Singh ◽  
Ramica Sharma

In the present study, the methanolic extract of Moringa oleifera leaves (MEMOL) was evaluated for antiobesity activity in rats. The antiobesity potential of MEMOL was studied against high fat diet-induced obesity (HFD) in rats. In this study, chronic administration of HFD in rats produced hypercholesterolemia (116.2 ± 0.27 mg/dL), which led to an increase in the body weight (225 gr), total cholesterol, triglycerides (263.0 ± 4.69 mg/dL), and attenuation in the levels of HDL (34.51 ± 2.20 mg/dL) as well as changes in body temperature of animals. Treatment of obese rats with MEMOL for 49 days resulted in a significant (P<0.001) change in body weight, total cholesterol, triglycerides, and LDL level along with a significant (P<0.001) increase in body temperature as compared to the HFD-induced obesity. MEMOL treated rats also showed a significant decrease in the level of liver biomarkers, organ weight, and blood glucose level. Further, rats treated with MEMOL (200 mg and 400 mg/kg) show reduced atherogenic index (1.7 ± 0.6 and 0.87 ± 0.76). The results indicate that the rats treated with Moringa oleifera (MO) have significantly attenuated the body weight without any change in the feed intake and also elicited significant thermogenic effect and to act as hypolipidemic and thermogenic property in obesity related disorders.

2021 ◽  
Vol 12 ◽  
Author(s):  
Edward T. Wargent ◽  
Suhaib J. S. Ahmad ◽  
Qing Richard Lu ◽  
Evi Kostenis ◽  
Jonathan R. S. Arch ◽  
...  

Previous studies have shown that agonists of GPR17 stimulate, while antagonists inhibit feeding. However, whole body knockout of GPR17 in mice of the C57Bl/6 strain did not affect energy balance, whereas selective knockout in oligodendrocytes or pro-opiomelanocortin neurons provided protection from high fat diet-induced obesity and impaired glucose homeostasis. We reasoned that whole body knockout of GPR17 in mice of the 129 strain might elicit more marked effects because the 129 strain is more susceptible than the C57Bl/6 strain to increased sympathetic activity and less susceptible to high fat diet-induced obesity. Consistent with this hypothesis, compared to wild-type mice, and when fed on either a chow or a high fat diet, GPR17 -/- mice of the 129 strain displayed increased expression of uncoupling protein-1 in white adipose tissue, lower body weight and fat content, reduced plasma leptin, non-esterified fatty acids and triglycerides, and resistance to high fat diet-induced glucose intolerance. Not only energy expenditure, but also energy intake was raised. Administration of leptin did not suppress the increased food intake in GPR17 -/- mice of the 129 strain, whereas it did suppress food intake in GPR17 +/+ mice. The only difference between GPR17 +/- and GPR17 +/+ mice of the C57Bl/6 strain was that the body weight of the GPR17 -/- mice was lower than that of the GPR17 +/+ mice when the mice were fed on a standard chow diet. We propose that the absence of GPR17 raises sympathetic activity in mice of the 129 strain in response to a low plasma fuel supply, and that the consequent loss of body fat is partly mitigated by increased energy intake.


2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Soo Im Chung ◽  
Mi Young Kang

Obesity is a significant risk factor for chronic diseases. The effect of ethanol extract from germinated Keunnunjami, blackish-purple rice with a giant embryo, compare to ordinary brown rice, on the body weight and lipid and glucose metabolism in high-fat diet-fed mice was analyzed. Mice were fed with a high-fat diet-fed for 3 weeks and then orally administered with either distilled water (HF) or extract (0.25%, w / w ) from brown, germinated brown, Keunnunjami, and germinated Keunnunjami rice for 4 weeks. Control mice were fed with a normal diet and orally administered with distilled water. The HF group showed markedly higher body weight and triglyceride, cholesterol, fatty acid, glucose, and insulin levels than the control group. However, the oral administration of rice extracts ameliorated this high-fat diet-induced obesity, hyperlipidemia, and hypoglycemia through the modulation of adipokine production, lipogenic and glucose-regulating enzyme activities, and mRNA expression of genes associated with lipid and glucose metabolism. The germinated Keunnunjami extract exhibited greater hypolipidemic, hypoglycemic, and body weight-lowering effects than the other rice extracts. The results demonstrated that germination could further enhance the physiological properties of rice and that germinated Keunnunjami extract has a strong therapeutic potential against high-fat diet-induced obesity, hyperlipidemia, and hyperglycemia.


Hypertension ◽  
2012 ◽  
Vol 60 (suppl_1) ◽  
Author(s):  
Mohammed A Khan ◽  
Preethi Samuel ◽  
Sourashish Nag ◽  
Tahir Hussain

Obesity in itself is a disease condition and a major risk factor in the development of hypertension, dyslipidemia, and hyperglycemia. Therefore, successful strategies for improving obesity and related metabolic risk factors are needed. Role of renin-angiotensin system (RAS) has been implicated in obesity and metabolic dysfunction. Recently, we have shown that AT2R knock-out in female mice caused a greater body weight gain and hyperinsulimia in response to high fat diet (HFD). In the present study, we hypothesize that AT2R activation rescues diet-induced obesity in females. To test this hypothesis, we injected AT2R non-peptide agonist C21 (0.3mg/kg/day i.p) in C57BL6 female mice on HFD for 12 weeks. C21-treatment did not affect the HFD calorie intake (HFD: 937±18 Kcal; C21HFD: 886±37 Kcal) but caused lesser body weight gain compared to control (HFD: 4.4± 0.4g; C21HFD: 3.06± 0.4g). Similar to the body weight gain pattern, gonadal fat weight and adipocyte size were decreased significantly in C21-treated mice on HFD compared to control HFD group (HFD: 4.4± 0.4 g; C21 HFD: 3.06± 0.4g) and (HFD: 6404±161.6μm2 ; C21HFD: 3874±103.2μm2 ) respectively. Moreover, the C21-treated females on HFD had lower levels of plasma insulin, improved glucose tolerance, and decreased plasma free fatty acids and hepatic triglycerides. Western blot revealed that phospho-Ser79-acetyl CoA carboxylase (p-Ser79-ACC-1) was reduced, an index of increased lipogenic activity and decreased β-oxidation process, in both adipose (Adi) and hepatic (Hep) tissues of HFD fed groups (Adi: 86% and Hep: 73% of 100% controls); C21-treatment revered the decrease in p-ser79-ACC-1 in Adi (104% of control) and caused an increase in Hep (122% of control) respectively. The HFD feeding lowered the estradiol level (ND: 38.8±2.6 vs HFD:11.3±1.2ng), which was modestly reversed by C21 treatment (C21HFD:17.4± 1.5ng) in HFD mice. Our results strongly suggest that stimulation of AT2R in female mice positively contribute, predominantly independent of estrogen, to rescue body weight gain and adipocyte size increase in response to HFD. We propose reduced lipogenesis and enhanced lipid β-oxidation as potential mechanisms linked to AT2R action in reducing obesity and its related metabolic disorders in females.


Biomolecules ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 99 ◽  
Author(s):  
Wang Ling ◽  
Shungeng Li ◽  
Xingcai Zhang ◽  
Yongquan Xu ◽  
Ying Gao ◽  
...  

: Probiotic dark tea (PDT) is a novel kind of dark tea produced by fresh albino tea leaves and fermented with specific probiotics. Our study demonstrates that PDT can ameliorate high-fat diet-induced overweight and lipid metabolic disorders and shows no acute or subacute toxicity in Sprague-Dawley (SD) rats. Daily intragastric administration of 5% PDT infusion for 14 days caused no obvious effect on general physiological features and behaviors of rats. Oral administration of 1%, 2%, and 3% of PDT infusion for six weeks had no influence on the biochemistry and histopathology of rats’ organs and blood, as well as the body weight and ratios of organ/body weight. To investigate its anti-obesity activity, SD rats were randomly divided into four groups, treated with normal diet + water (Group I), high-fat diet + water (Group II), high-fat diet + 3% traditional dark tea infusion (Group III), high-fat diet + 3% PDT infusion (Group IV). After six weeks, the body weight, serum total triacylglycerol (TG) and serum total cholesterol (TC) levels of rats in Group II were significantly increased and the high-density lipoprotein cholesterol (HDL) levels were significantly decreased compared with those in the other three groups. Both traditional dark tea and PDT treatment effectively counteracted the adverse effect of a high-fat diet in SD rats. These results suggest that PDT could be applied for the prevention of obesity, which ameliorates overweight and lipid metabolic disorders and which shows no acute or subacute toxicity.


2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Hsien-Hui Chung ◽  
Kung Shing Lee ◽  
Juei-Tang Cheng

The activation of the imidazoline I1-receptor (I1R) is known to regulate appetite. Allantoin, an active ingredient in the yam, has been reported to improve lipid metabolism in high fat diet- (HFD-)fed mice. However, the effect of allantoin on obesity remains unclear. In the present study, we investigated the effects of allantoin on HFD-induced obesity. The chronic administration of allantoin to HFD-fed mice for 8 weeks significantly decreased their body weight, and this effect was reversed by efaroxan at a dose sufficient to block I1R. The epididymal white adipose tissue (eWAT) cell size and weight in HFD-fed mice were also decreased by allantoin via the activation of I1R. In addition, allantoin significantly decreased the energy intake of HFD-fed mice, and this reduction was associated with a decrease in the NPY levels in the brain. However, no inhibitory effect of allantoin on energy intake was observed in db/db mice. Moreover, allantoin lowered HFD-induced hyperleptinemia, and this activity was abolished by I1R blockade with efaroxan. Taken together, these data suggest that allantoin can ameliorate energy intake and eWAT accumulation by activating I1R to improve HFD-induced obesity.


2014 ◽  
Vol 9 (10) ◽  
pp. 1934578X1400901 ◽  
Author(s):  
Qing Liu ◽  
Sang Hyun Kim ◽  
Seon Beom Kim ◽  
Yang Hee Jo ◽  
Eun Sil Kim ◽  
...  

The effect of the extract of Ligustrum lucidum fruits (LFE) and its major secoiridoid (LFS), (8- E)-nüzhenide, on obesity was investigated using high fat-diet (HFD)-induced C58BL/6J obese mice. LFE and LFS were administered at the doses of 300 mg/kg and 30 mg/kg, respectively, for 6 weeks. The anti-obesity activity was evaluated by measuring body weight, epididymal fat and metabolic plasma parameters. On Day 42, the body weight of the LFS-treated group was significantly lower compared with the HFD-treated group. Body weight gain was also reduced by 23.2% and 32.0% in the LFE- and LFS-treated groups, respectively, compared with the HFD group. In addition, the weight of the epididymal fat in the mice was significantly decreased in the HFD+LFS group. The food efficiency ratios (FERs) of the HFD+LFE and HFD+LFS groups were also lower compared with the HFD group with the same food intake. Metabolic parameters that had increased in the HFD group were decreased in the HFD+LFE and HFD+LFS groups. In particular, the increased triglyceride values were significantly reduced in the HFD+LFS group. These results show that treatment with LFE and LFS decreased HFD-induced obesity, mainly by improving metabolic parameters, such as fats and triglycerides. Therefore, LFE and LFS have potential benefits in regulation of obesity.


2021 ◽  
Vol 5 (Supplement_2) ◽  
pp. 1260-1260
Author(s):  
Yang Yang ◽  
Xinyun Xu ◽  
Christophe Morisseau ◽  
Bruce Hammock ◽  
Ahmed Bettaieb ◽  
...  

Abstract Objectives Brown adipose tissue (BAT) is a promising target for obesity prevention. N-3 epoxides are fatty acid epoxides produced from n-3 polyunsaturated fatty acids and shown to be beneficial for health. However, these epoxides are unstable and quickly metabolized by the cytosolic soluble epoxide hydrolase (sEH). Here, we investigated the effects of sEH inhibitor (t-TUCB) alone or combined with two different n-3 epoxides on BAT activation in the development of diet-induced obesity and associated metabolic disorders. Methods Male C57BL6/J mice were fed a high-fat diet and received either of the following treatment: the vehicle control, t-TUCB alone (T), or t-TUCB combined with 19,20-EDP (T + EDP) or 17,18-EEQ (T + EEQ) via osmotic minipump delivery near the interscapular BAT for 6 weeks. Mice were examined for changes in body weight, food intake, glucose, insulin, and cold tolerance tests, and indirect calorimetry. Blood and tissue biochemical analyses were also performed to assess changes in metabolic homeostasis. Results Although no differences in food intake were observed, there were small but significant increases in body weight in both T and T + EDP groups. Mice in the T + EDP and T + EEQ groups showed significant decreases in fasting glucose and serum TG levels, higher core body temperature, and better cold tolerance compared to the controls. However, heat production was significantly increased only in the T + EEQ group. Thermogenic UCP1 protein expression showed a moderate, but not significant, increase in the T + EEQ group. On the other hand, PGC1 α protein expression was significantly increased in the T, T + EDP, and T + EEQ groups compared to the controls. Perilipin protein expression and phosphorylation were also significantly increased in the three treated groups. In contrast, protein expression of FABP4 and HSL was only increased in the T and T + EDP groups, and CD36 protein expression was only increased in the T + EEQ group. Conclusions Our results suggest that sEH pharmacological inhibition by t-TUCB combined with n-3 epoxides may prevent high-fat diet-induced glucose and lipid disorders, in part through increased thermogenesis and upregulating of protein expression of thermogenic and lipid metabolic genes. Funding Sources The work was supported by NIH grants to L.Z., A.B., and B.D.H.


2021 ◽  
Vol 5 (Supplement_2) ◽  
pp. 1216-1216
Author(s):  
Xinge Hu

Abstract Objectives The dietary fat content plays an important role in the regulation of chronic metabolic diseases such as obesity and type 2 diabetes. Here, we tested the impacts of triacylglycerol structure on the body weight gain and food intake of mice in a high-fat diet (HFD) setting. Methods Male C57/BL6J mice at 6 weeks old were fed one of the following three diets for 6 weeks, Teklad Rodent Diet chow diet (number 8640), the chow diet containing 36% (w/w) 1,2-Dipalmitoyl-3-oleoylglycerol (PPO), or the chow diet containing 36% (w/w) 1,3-Dipalmitoyl-2-oleoylglycerol (POP). Each group contained 9 mice, and their food intake and BW were measured daily. The mice were euthanized after 6 weeks (12 weeks old) for tissue sample collection. Results Both high HFD groups had significantly higher BW gain and caloric intakes than the chow diet group. Mice fed the POP diet had a lower percentage of BW gain and consumed less accumulated calories than those fed the PPO diet, as well as a significantly lower liver to BW ratio. Since week 4, the body BW rate of the POP group started to be lower than that of the PPO diet group. Conclusions TAG structures in an HFD setting affect the BW gain rate and obesity in mice. The different structures of fat added to affect the food intake and BW gain differently in an HFD setting. In the future, we would like to compare the changes of the hepatic lipogenesis enzyme in these mice. This will help us to understand how the triacylglycerol structures in the diet affect lipid metabolism in mice. Funding Sources Internal.


2021 ◽  
Vol 5 (Supplement_2) ◽  
pp. 503-503
Author(s):  
Zhiji Huang ◽  
Yafang Ma ◽  
Chunbao Li

Abstract Objectives Kappa-Carrageenan(CGN) is a widely used food additive in the meat industry and a highly viscous soluble dietary fiber which can hardly be fermented. It has been shown to be able to regulate the energy metabolism and inhibit diet-induced obesity. However, the mechanism is not well understood. The purpose of this study is to investigate the mechanisms of κ-carrageenan to inhibit the body weight gain. Methods A high-fat diet incorporated with lard, pork protein and CGN (2% or 4%, w/w) was given to C57BL/6J mice for 90 days. The energy intake and weight changes were measured every three days. After the dietary intervention, mice were sacrificed, liver and epididymal adipose tissues were taken for real-time polymerase chain reaction (RT-qPCR) analysis. Results The CGN in the high-fat diet restricted weight gain by decreasing liver and adipose mass without inhibiting energy intake.  The genes involving energy expenditure such as Acox1, Acadl, CPT-1A and Sirt1 were upregulated in the mice fed with carrageenan. However, the genes responsible for lipid synthesis were not significantly different compared to the diet-induced obese model. Conclusions The anti-obesity effect of the CGN in high-fat diet could be highly related to the enhancement of energy expenditure through up-regulating the downstream genes which promote β-oxidation by increasing the Sirt1 gene expression in liver. Funding Sources Ministry of Science and Technology of the People's Republic of China (10000 Talent Project)


2021 ◽  
Vol 5 (Supplement_2) ◽  
pp. 272-272
Author(s):  
Ting-Chun Lin ◽  
Ying Tang ◽  
Soonkyu Chung ◽  
Young-Cheul Kim ◽  
Zhenhua Liu

Abstract Objectives Colorectal cancer (CRC) is one of the most prevalent cancer worldwide. Evidence from epidemiological studies shows that the incidence rate of CRC among elders with age ≥ 50 years is gradually decreased, whereas the rate continuously rise in adults with age &lt; 50 years. Along with the rise of CRC in young adults, a significantly increasing trend in obesity is also observed in youth. The present study aims to investigate how the early-life nutrition influences the intestinal tumorigenesis later in mouse with an age equivalent to an age &lt; 50 years in human. Methods APC1638N mice (4 weeks of age) were fed a low-fat diet (N = 22; LF: 10% kcal from fat) or a high-fat diet (N = 23; HF: 60% kcal from fat) for 8 weeks, which is equivalent to child/adolescent age in humans. After that, all animals were switched to standard chow diet (LabDiet #5P76) and fed for additional 12 weeks before sacrifice. Tumors were examined and the expression tumorigenic Wnt-signaling downstream genes (Cyclin D1, c-Myc and Axin 2) in the intestine were assessed. Results Our results showed that compared to LF group, the body weight of both male and female mice significantly increased after 8-week HF feeding (P &lt; 0.05). After switching to the standard chow diet for further 12 weeks feeding, the increase of body weight in HF group remained, although the degree of magnitude reduced, and a statistical significance only shown in female mice (P &lt; 0.05). There were a higher tumor incidence (P = 0.051) and tumor multiplicity (P &lt; 0.05) in males than female.  No interactions between gender and diet were observed. The HF group had a higher tumor incidence (P = 0.088) and tumor size (P &lt; 0.05) when compared to the LF group. The expression of Wnt-signaling downstream gene, c-Myc, was significantly increased in the HF group at 24-week of age (P &lt; 0.01). Conclusions A short term of high-fat diet in early life tends to promote intestinal tumorigenesis in adults as indicated by a mild increase in tumor incidence and a significant increase in tumor size. Funding Sources This project was supported by the US Department of Agriculture Hatch funding (#1013548).


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