scholarly journals Strength Training Reduces Fat Accumulation and Improves Blood Lipid Profile Even in the Absence of Skeletal Muscle Hypertrophy in High-Fat Diet-Induced Obese Condition

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Catarina Denise Entringer Contreiro ◽  
Leonardo Carvalho Caldas ◽  
Breno Valentim Nogueira ◽  
André Soares Leopoldo ◽  
Ana Paula Lima-Leopoldo ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Body Composition ◽  
Strength Training ◽  
High Fat Diet ◽  
Muscle Hypertrophy ◽  
The Body ◽  
High Fat ◽  
Metabolic Adaptations ◽  
Obese Rats ◽  
Training Protocol

The aim was to investigate the effect of strength training on skeletal muscle morphology and metabolic adaptations in obese rats fed with unsaturated high-fat diet (HFD). The hypothesis was that strength training induces positive metabolic adaptations in obese rats despite impaired muscle hypertrophy. Male Wistar rats (n = 58) were randomized into two groups and fed a standard diet or a high-fat diet (HFD) containing 49.2% of fat. After induction and maintenance to obesity, the rats were divided into four groups: animals distributed in sedentary control (CS), control submitted to strength training protocol (CT), obese sedentary (ObS), and obese submitted to strength training protocol (ObT). The exercise protocol consisted of 10 weeks of training on a vertical ladder (three times a week) with a load attached to the animal’s tail. At the end of 10 weeks, strength training promoted positive changes in the body composition and metabolic parameters in obese animals. Specifically, ObT animals presented a reduction of 22.6% and 14.3% in body fat and adiposity index when compared to ObS, respectively. Furthermore, these rats had lower levels of triglycerides (ObT = 23.1 ± 9.5 vs. ObS = 30.4 ± 6.9 mg/dL) and leptin (ObT = 13.2 ± 7.2 vs. ObS = 20.5 ± 4.3 ng/mL). Training (ObT and CT) induced a greater strength gain when compared with the respective control groups. In addition, the weight of the flexor hallucis longus (FHL) muscle was higher in the ObT group than in the CT group, representing an increase of 26.1%. However, training did not promote hypertrophy as observed by a similar cross-sectional area of the FHL and plantar muscles. Based on these results, high-intensity strength training promoted an improvement of body composition and metabolic profile in obese rats that were fed a high-fat diet without skeletal muscle adaptations, becoming a relevant complementary strategy for the treatment of obesity.

scholarly journals Effectiveness of Echinochrome on HFD-Induced Hyperlipidemia in Rats

2019 ◽  
Vol 9 (5) ◽  
pp. 337-344
Author(s):  
Sohair R. Fahmy ◽  
Nashwah Ismail Zaki ◽  
Shaimaa Zakaria Eid ◽  
Ayman Saber Mohamed ◽  
Sarah S. Hassanein
Keyword(s):  
High Fat Diet ◽  
The Body ◽  
Control Group ◽  
High Fat ◽  
Obese Rats ◽  
Liver Functions ◽  
Set Up ◽  
Antioxidant Markers ◽  
Kidney Functions ◽  
Group 1

Abstract Obesity has been identified with an expanded danger of a progression of illnesses that include different organ-frameworks of the body. In the present examination, we evaluated the hypolipidemic properties of Echinochrome (Ech) pigment in a high-fat diet (HFD) induced hyperlipidemia in rats. After the hyperlipidemic model was set up, rats were haphazardly separated into five groups as follows: normal control group, HFD group, Atorvastatin (ATOR) group (80 mg/kg), Ech group (1 mg/kg) and combined group ATOR + Ech. The outcomes demonstrated that Ech improves lipid profile, liver functions, kidney functions and antioxidant markers of obese rats. The findings of the present investigation indicated that the Ech possesses hypolipidemic potential in obese rats.

Black tea polyphenols and polysaccharides improve body composition, increase fecal fatty acid, and regulate fat metabolism in high-fat diet-induced obese rats

2016 ◽  
Vol 7 (5) ◽  
pp. 2469-2478 ◽  
Author(s):  
Tao Wu ◽  
Yu Guo ◽  
Rui Liu ◽  
Kuan Wang ◽  
Min Zhang
Keyword(s):  
Body Composition ◽  
Fatty Acid ◽  
High Fat Diet ◽  
Fat Metabolism ◽  
Black Tea ◽  
High Fat ◽  
Improve Body Composition ◽  
Obese Rats ◽  
Black Tea Polyphenols ◽  
Global Health Problem

With the current changes in diet and living habits, obesity has become a global health problem.

scholarly journals Antiobesity Effects of the Ethanol Extract ofLaminaria japonicaAreshoung in High-Fat-Diet-Induced Obese Rat

2013 ◽  
Vol 2013 ◽  
pp. 1-17 ◽  
Author(s):  
Woong Sun Jang ◽  
Se Young Choung
Keyword(s):  
Fatty Acid ◽  
High Fat Diet ◽  
Body Weight Gain ◽  
Laminaria Japonica ◽  
Ethanol Extract ◽  
The Body ◽  
Male Rats ◽  
Acid Oxidation ◽  
High Fat ◽  
Obese Rats

Laminaria japonicaAreshoung, a widely consumed marine vegetable, has traditionally been used in Korean maternal health. The present study investigated the antiobesity effects ofLaminaria japonicaAreshoung ethanol extract (LE) and its molecular mechanism in high-fat-diet-induced obese rats. Six-week-old Sprague-Dawley male rats were separately fed a normal diet or a high-calorie high-fat diet for 6 weeks; then they were treated with LE or tea catechin for another 6 weeks. LE administration significantly decreased the body weight gain, fat-pad weights, and serum and hepatic lipid levels in HD-induced obese rats. The histological analysis revealed that LE-treated group showed a significantly decreased number of lipid droplets and size of adipocytes compared to the HD group. To elucidate the mechanism of action of LE, the levels of genes and proteins involved in obesity were measured in the liver and skeletal muscle. LE treatment resulted in an increased expression of fatty acid oxidation and thermogenesis-related genes in obese rats. Conversely, the expression of the fat intake-related gene (ACC2) and lipogenesis-related genes was reduced by LE treatment. Additionally, LE treatment increased the phosphorylation of AMP-activated protein kinase and its direct downstream protein, acetyl coenzyme A carboxylase, which is one of the rate-limiting enzymes in fatty acid synthesis pathway. These findings demonstrate that LE treatment has a protective effect against a high-fat-diet-induced obesity in rats through regulation of expression of genes and proteins involved in lipolysis and lipogenesis.

scholarly journals Tofogliflozin Improves Insulin Resistance in Skeletal Muscle and Accelerates Lipolysis in Adipose Tissue in Male Mice

Endocrinology ◽  
2015 ◽  
Vol 157 (3) ◽  
pp. 1029-1042 ◽  
Author(s):  
Atsushi Obata ◽  
Naoto Kubota ◽  
Tetsuya Kubota ◽  
Masahiko Iwamoto ◽  
Hiroyuki Sato ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Skeletal Muscle ◽  
Adipose Tissue ◽  
Glucose Uptake ◽  
White Adipose Tissue ◽  
High Fat Diet ◽  
Molecular Mechanisms ◽  
The Body ◽  
High Fat ◽  
Ad Libitum

Abstract Sodium glucose cotransporter 2 inhibitors have attracted attention as they exert antidiabetic and antiobesity effects. In this study, we investigated the effects of tofogliflozin on glucose homeostasis and its metabolic consequences and clarified the underlying molecular mechanisms. C57BL/6 mice were fed normal chow containing tofogliflozin (0.005%) for 20 weeks or a high-fat diet containing tofogliflozin (0.005%) for 8 weeks ad libitum. In addition, the animals were pair-fed in relation to controls to exclude the influence of increased food intake. Tofogliflozin reduced the body weight gain, mainly because of fat mass reduction associated with a diminished adipocyte size. Glucose tolerance and insulin sensitivity were ameliorated. The serum levels of nonesterified fatty acid and ketone bodies were increased and the respiratory quotient was decreased in the tofogliflozin-treated mice, suggesting the acceleration of lipolysis in the white adipose tissue and hepatic β-oxidation. In fact, the phosphorylation of hormone-sensitive lipase and the adipose triglyceride lipase protein levels in the white adipose tissue as well as the gene expressions related to β-oxidation, such as Cpt1α in the liver, were significantly increased. The hepatic triglyceride contents and the expression levels of lipogenic genes were decreased. Pair-fed mice exhibited almost the same results as mice fed an high-fat diet ad libitum. Moreover, a hyperinsulinemic-euglycemic clamp revealed that tofogliflozin improved insulin resistance by increasing glucose uptake, especially in the skeletal muscle, in pair-fed mice. Taken together, these results suggest tofogliflozin ameliorates insulin resistance and obesity by increasing glucose uptake in skeletal muscle and lipolysis in adipose tissue.

Hepatic PTP1B Expression Involvement in the Effects of Chinese Medicine Formula Xiao-Gao-Jiang-Zhuo Using an Obese Rat Model

2011 ◽  
Vol 39 (02) ◽  
pp. 301-313 ◽  
Author(s):  
Min Li ◽  
Bai Chang ◽  
Zhong Zhen ◽  
Pei-Jie Qin ◽  
Wen-Ke Liu ◽  
...  
Keyword(s):  
Body Weight ◽  
High Fat Diet ◽  
Serum Insulin ◽  
Blood Lipid ◽  
Abdominal Fat ◽  
The Body ◽  
High Dose ◽  
Model Group ◽  
High Fat ◽  
Obese Rats

In this study, we investigated the effects of a Chinese herbal medicine formula Xiao-Gao-Jiang-Zhuo (XGJZ) in obese rats induced by a high-fat diet. Ten male rats in the normal group were fed with a standard diet. Another 50 male obese rats were induced by a 12-week high-fat diet feeding, and were randomly divided into five groups (n = 10 per group): the model group, the high-dose XGJZ group, the middle-dose XGJZ group, the low-dose XGJZ group, and the sibutramine group. After 14 weeks of treatment, body weight, abdominal fat, blood lipid and serum insulin level were measured, and the protein and gene expression of PTP1B in liver tissue was tested. Our data showed that the body weight of the high-dose and middle-dose groups and the sibutramine group had significant differences in comparison with the model group (p < 0.05), and all three dose groups had significantly reduced abdominal fat (p < 0.05). The triglyceride level of the three dose groups and the sibutramine group, and the total cholesterol level of the middle-dose group were all significantly reduced (p < 0.05). The serum insulin of the high-dose and middle-dose groups also decreased significantly (p < 0.05). The expression of hepatic PTP1B mRNA of the three dose groups decreased significantly in comparison with the model group (p < 0.05 or 0.01). The expression of hepatic PTP1B protein of the high-dose and middle-dose groups decreased significantly (p < 0.05). Our data suggested that XGJZ can modulate the body weight, abdominal fat and blood lipid in the obese rats, and this modulation might improve insulin resistance by inhibiting the PTP1B signal pathway.

scholarly journals High-Intensity Interval Training Does Not Change Vaspin and Omentin and Does Not Reduce Visceral Adipose Tissue in Obese Rats

2021 ◽  
Vol 12 ◽  
Author(s):  
Leandro Ribeiro Costa ◽  
Cynthia Aparecida de Castro ◽  
Diego Adorna Marine ◽  
Fernando Fabrizzi ◽  
Vanessa de Oliveira Furino ◽  
...  
Keyword(s):  
Body Composition ◽  
Adipose Tissue ◽  
High Fat Diet ◽  
Interval Training ◽  
Normal Diet ◽  
High Intensity Interval Training ◽  
High Fat ◽  
Obese Rats ◽  
High Intensity Interval ◽  
Visceral Adipose

This study aimed to determine the expression of omentin and vaspin, inflammatory markers, body composition, and lipid profile in diet-induced obese rats and high-intensity interval training (HIIT). Forty Wistar rats were divided into four groups: untrained normal diet, trained normal diet (T-ND), untrained high-fat diet (Unt-HFD), and trained high-fat diet (T-HFD). For the animals of the Unt-HFD and T-HFD groups, a high-fat diet was offered for 4 weeks. After that, all the animals in the T-ND and T-HFD groups were submitted to HITT, three times per week, for 10 weeks (2 weeks of adaptation and 8 weeks of HIIT). Muscle (gastrocnemius), liver, epididymal adipose tissue, retroperitoneal adipose tissue, visceral adipose tissue (VAT), and serum were collected to analyze TNF-α, IL-6, PCR, IL-8, IL-10, IL-4, vaspin, and omentin. A body composition analysis was performed before adaptation to HIIT protocol and after the last exercise session using dual-energy X-ray absorptiometry. Omentin and vaspin in the VAT were quantified using Western blotting. The results showed that, when fed a high-fat diet, the animals obtained significant gains in body fat and elevated serum concentrations of vaspin and blood triglycerides. The HIIT was able to minimize body fat gain but did not reduce visceral fat despite the increase in maximum exercise capacity. Moreover, there was a reduction in the serum levels of adiponectin, IL-6, and IL-10. Finally, we concluded that, although the training protocol was able to slow down the weight gain of the animals, there was no reduction in visceral fat or an improvement in the inflammatory profile, including no changes in omentin and vaspin.

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