• Title/Summary/Keyword: Diet-induced obesity

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Anti-obese Effects and Signaling Mechanisms of Chaenomeles sinensis extracts in 3T3-L1 Preadipocytes and Obese Mice Fed a High-fat Diet (3T3L-1 지방전구세포와 고지방식이로 유도된 비만 마우스 모델에서 모과 추출물의 항비만 효과와 억제 기전)

  • Kim, Da-Hye;Kwon, Bora;Kim, Sang Jun;Kim, HongJun;Jeong, Seung-Il;Yu, Kang-Yeol;Kim, Seon-Young
    • Herbal Formula Science
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    • v.25 no.4
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    • pp.457-469
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    • 2017
  • Obesity is one of the most serious health problem because it induced numerous metabolic syndrome and increases the incidence of various disease, including diabetes, hypertension, dyslipidemia, atherosclerosis, and cancer. In 3T3-L1 adipocytes, increases in reactive oxygens species (ROS) occur with lipid accumulation. NADPH oxidase, producing superoxide anion, may contribute to the development of obesity-associated insulin resistance and type 2 diabetes. In this study, we elucidated the effect of Chaenomeles sinensis koehne extract (CSE) against the development of obesity and the inhibition mechanisms in 3T3-L1 preadiocytes. CSE decreased triglyceride content and inhibited the expression of adipogenic transcription factors including peroxisome proliferator-activated receptor $(PPAR){\gamma}$, CCAT/enhancer binding protein $(C/EBP){\alpha}$ and sterol regulatory element-binding protein (SREBP-1). In addition, CSE highly increased antioxidant activity in a dose-dependent manner. CSE remarkably reduced intracellular ROS increase and NAD(P)H oxidase activity, NOX1, NOX4, Rac1 protein expression, and phosphorylation of p47phox and p67phox We also studied the effect of CSE on weight gain induced by high-fat diet. The oral treatment of CSE (500 mg/kg, body weight) in diet-induced obese (DIO) mice showed decrease in triglyceride and adipocyte size. Therefore, these results indicate that the effect of CSE on anti-obese effects, adipocyte differentiation and reducing triglyceride contents as well as adipocyte size in obese mice, may be associated with inhibition of NAD(P)H oxidase-induced ROS production and adipose transcription factors. These results showed the potential to inhibit the obesity by CSE treatment through controlling the activation of NAD(P)H oxidase in vitro and in vivo obese model.

The Study on Anti-obesity Effects of Gamiygin-tang Extract and Ferment (가미이진탕(加味二陳湯) 전탕액과 발효액이 항비만(抗肥滿)효과에 미치는 연구)

  • Chang, Sung Jin;Min, Deul Le;Park, Eun Jung
    • The Journal of Pediatrics of Korean Medicine
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    • v.27 no.4
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    • pp.108-121
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    • 2013
  • Objective This study was designed to investigate the effects of Gamiygin-tang (GY) extract (GYE) and fermented solution (GYF) on body weight, serum lipid level and adipocyte differentiation in high fat diet-fed obese mice. Materials and Methods High fat diet-fed obese mice and 3T3-L1 adipocytes mice were treated with GYE and GYF and obesity related markers were assessed. A cytotoxicity assay was carried out by MTS assay. Inhibitory effects of GYE and GYF on adipocyte differentiation were carried out by Oil Red O staining. The effects of GYE and GYF on the expression of adipocyte differentiation regulatory factors, peroxisome proliferator-activated receptor gamma ($PPAR{\gamma}$) and CCAAT/enhancer binding protein alpha (CEBP-${\alpha}$) were measured by real-time reverse transcriptase-polymerase chain reaction. The effects of GYE and GYF on the expression of adipocyte differentiation regulatory factors were also determined in relation to protein production/protein levels by western blotting. The anti obesity effects of GYE and GYF were measured in high fat-diet induced obese mice. Various factors were measured from the serum of the high fat-diet mice. Results Though GYE did not show toxicity at the concentration of 1mg/ml, GYF showed toxicity at the concentration of 1mg/ml. The GYE at 0.1 and 1mg/ml inhibited the differentiation of 3T3-L1 cells, and the GYF also inhibited the differentiation of 3T3-L1 cells. The effect of GYE on adipocyte differentiation factors including PPAR-${\gamma}$ and CEBP-${\alpha}$ was investigated and compared to the corresponding concentration levels of GYF. GYE and GYF both suppressed the RNA and protein levels of adipocyte differentiation factors. In the animal test both GYE and GYF reduced weight gain. GYE and GYF reduced blood cholesterol, TG and LDL levels. GYF better reduced blood cholesterol levels. Conclusions These results demonstrate that GYE and GYF exerts anti-obesity effect in 3T3-L1 cells and obese mice induced by high-fat diet.

Synergistic combination effect of anti-obesity in the extracts of Phyllostachys pubescence Mael and Scutellaria baicalensis Georgi (죽엽(竹葉)과 황금(黃芩) 복합물의 항비만 효과)

  • Kang, Young Min;Kim, Seung-Hyung;Lee, Young-Cheol;Kim, Ho Kyoung;Kim, Dong-Seon
    • The Korea Journal of Herbology
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    • v.29 no.6
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    • pp.7-13
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    • 2014
  • Objectives : Anti-obesity drugs that have been developed so far have limited efficacies and considerable adverse effects affecting tolerability and safety. Therefore, most anti-obesity durgs have been withdrawn. We tried to develop anti-obesity agent by combinations from herbs that are used in food ingredients as well as in traditional medicines. Methods : The 80% (v/v) ethanol extracts from Bamboo (Phyllostachys pubescence) leaf (BL) and Scutellaria baicalensis (SB) and their 1:1 combination (BLSB) was evaluated on high fat diet induced obese mice compared to Omega-3 as a positive control. The mice were divided into six groups (n=5), one group fed a normal diet (ND), and the others fed a high fat diets for eight weeks. Two weeks after starting feeding the diets, the high fat diet groups were orally administered vehicle and Omega-3, BL, SB, and BLSB at dosage of 200 mg/kg/day for six weeks. All groups were assayed for body weights, food efficiency ratio, blood biochemistry parameters, and organic tissue weights. Results : BLSB group showed significant reductions in body weight gain and fat weights of liver and epididymal adipose tissue compared to BL or SB alone as well as control. Total-cholesterol and LDL-cholesterol levels significantly decreased, and HDL-cholesterol level increased. In liver tissue, macrovesicular steaotisis was remarkably improved and its fat cell size was also significantly decreased. Conclusions : These results suggested that a combination preparation of bamboo leaf and S. baicalensis has anti-obesity effect and have synergistic effect compared to bamboo leaf or S. baicalesis.

Gintonin-enriched fraction protects against sarcopenic obesity by promoting energy expenditure and attenuating skeletal muscle atrophy in high-fat diet-fed mice

  • Jin, Heegu;Oh, Hyun-Ji;Nah, Seung-Yeol;Lee, Boo-Yong
    • Journal of Ginseng Research
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    • v.46 no.3
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    • pp.454-463
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    • 2022
  • Background: Gintonin-enriched fraction (GEF), a non-saponin fraction of ginseng, is a novel glycolipoprotein rich in hydrophobic amino acids. GEF has recently been shown to regulate lipid metabolism and browning in adipocytes; however, the mechanisms underlying its effects on energy metabolism and whether it affects sarcopenic obesity are unclear. We aimed to evaluate the effects of GEF on skeletal muscle atrophy in high-fat diet (HFD)-induced obese mice. Methods: To examine the effect of GEF on sarcopenic obesity, 4-week-old male ICR mice were used. The mice were divided into four groups: chow diet (CD), HFD, HFD supplemented with 50 mg/kg/day GEF, or 150 mg/kg/day GEF for 6 weeks. We analyzed body mass gain and grip strength, histological staining, western blot analysis, and immunofluorescence to quantify changes in sarcopenic obesity-related factors. Results: GEF inhibited body mass gain while HFD-fed mice gained 22.7 ± 2.0 g, whereas GEF-treated mice gained 14.3 ± 1.2 g for GEF50 and 11.8 ± 1.6 g for GEF150 by downregulating adipogenesis and inducing lipolysis and browning in white adipose tissue (WAT). GEF also enhanced mitochondrial biogenesis threefold in skeletal muscle. Furthermore, GEF-treated skeletal muscle exhibited decreased expression of muscle-specific atrophic genes, and promoted myogenic differentiation and increased muscle mass and strength in a dose-dependent manner (p < 0.05). Conclusion: These findings indicate that GEF may have potential uses in preventing sarcopenic obesity by promoting energy expenditure and attenuating skeletal muscle atrophy.

The Anti-Obesity Activity of Syzygium aromaticum L. in High-Fat Diet-induced Obese Mice (고지방식이로 유도된 비만 마우스에서 정향(丁香)의 항비만 효과)

  • Hui Yeon An;Seong-Soo Roh;Mi-Rae Shin
    • The Korea Journal of Herbology
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    • v.39 no.1
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    • pp.11-21
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    • 2024
  • Objectives : This study aims to analyze the anti-obesity effect of Syzygium aromaticum L. (SA) in obese mice made by a 60% high-fat diet (HFD). Methods : The antioxidant activities of SA were evaluated in vitro. To assess the anti-obesity effect of SA, male C57BL/6 mice were divided into five groups: Normal, Control, GC100 (Garcinia cambogia 100 mg/kg/day), SA100 (SA 100 mg/kg/day), SA200 (SA 200 mg/kg/day). All groups underwent a 6-week regimen of HFD and oral administration, except for the Normal group. Subsequently, we performed blood analysis, western blotting, and histopathological staining. Results : SA demonstrated effectiveness in antioxidant measurements. SA treatment resulted in a significant decrease in body weight gain, along with reductions in liver and epididymal fat weights. Serum triglyceride (TG), total cholesterol (TC), glutamic oxaloacetic transaminase (GOT), glutamic pyruvic transaminase (GPT), and leptin levels were reduced with SA treatment. Moreover, in the SA100 group, the reduction of both TG and TC synthesis was caused by inhibiting the sterol regulatory element-binding transcription factor 1 (SREBP-1) and sterol regulatory element-binding transcription factor 2 (SREBP-2) through the Sirtuin 1 (Sirt1)/phospho-AMP-activated protein kinase (p-AMPK) pathway. Furthermore, SA treatment at a dose of 100 mg/kg reduced the accumulation of lipid droplets in the liver and the adipocyte size of the epididymal fat. Conclusion : Our research reveals the anti-obesity effects of SA by demonstrating its ability to inhibit body weight gain and lipid accumulation, suggesting that SA might be promising for obesity treatment.

Oriental Medicines Effects on Cure and Prevention of an Obesity(VII) (비만치료 및 예방에 대한 한약의 효능 연구(VII) -체감행혈억이인탕가옥미가 비만유도 흰쥐의 생화학적 변화에 미치는 영향-)

  • Kim Sang Chan;Kwon Young Kyu;Kim Youn Sub;Byun Sung Hui
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.16 no.5
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    • pp.1001-1008
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    • 2002
  • This present study was carried out to investigate the body weight-regulatory effects of Chekamhanghyuluiyiin-tang plus Zeae Stigma in high fat diet-induced obese rats. Control group rats were fed with high fat diet and administered normal saline for 8weeks. Experimental groups rats were fed with high fat diet and administered extract of 2 kind of Chekamhanghyuluiyiin-tang plus Zeae Stigma each other for 8 weeks. And observed that, body weight of rats and total cholesterol, triglyceride, free fatty acid, total lipid, phospholipid, high density lipoprotein(HDL)-cholesterol, low density lipoprotein(LDL)-cholesterol in serum of rats, and glucose, insulin of rats. The results were as follows; There were significant decrease of serum free ratty acid level in 4CH/sub 5/ group. There were significant decrease of serum glucose level in 4CH/sub 10/ group. According to above mentioned results, Chekamhanghyuluiyiin-tang plus Zeae Stigma was expected to be applied to the prevention or treatment of obesity and its complications.

Effects of Low Level Laser Therapy on serum lipid and liver function in hyperlipidemia.obese Rats induced by high fat diet (저준위 레이져 요법이 고지방식이(高脂肪食餌)로 유발(誘發)된 고지혈증(高脂血症).비만백서(肥滿白鼠)의 혈청지질(血淸脂質) 및 간기능(肝機能)에 미치는 영향(影響))

  • Youn, Dae-Hwan;Lee, Yu-Kyung;Choi, Dong-Hee;Kim, Sung-Chul;Na, Chang-Su
    • Korean Journal of Acupuncture
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    • v.21 no.4
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    • pp.53-68
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    • 2004
  • Objectives : Laser therapy started in 1958 when Schawlow and Townes suggested medical value of Laser therapy. He-Ne laser has been utilized as a clinical treatment for various diseases by Plog since 1975. Low Level Laser Therapy (LLLT) has been used as medication for controlling obesity in the Korean Medicine. So this study is planned to investigate the effects of LLLT on the level of serum lipid and weight gain Methods : Experimental groups were divided into normal group(Normal), high fat diet group(Control), high fat diet and LLLT by helium-neon (He-Ne) on the tail is carried out once a 2 day during 5 weeks. The animals were divided into six groups: no ischemia-induced and no LLLT-treated group (Normal), the ischemia-induced and no LLLT-treated group (Control), the ischemia-induced and 5 mW 5 min LLLT-treated group (LLLT5-5), the ischemia-induced and 30 mW 5 min LLLT-treated group (LLLT30-5), the ischemia-induced and 5 mW 10 min LLLT-treated group (LLLT5-10), 30 mW 10 min LLLT-treated group (LLLT30-10). The effect of LLLT is observed by weight gain, food intake, food efficiency, serum of lipid concentrations, liver function and HDL to total cholesterol ratio of rats fed high fat diet for 5weeks. Results : Body weight and food intake were decreased in LLL5-5, LLLT30-5, LLLT30-10. Food efficiency was decreased in LLLT30-10. The level of serum Triglyceride, Free fatty acid, AST, ALT, ALP were decreased in LLLT30-10. Serum HDL-cholesterol was increase in LLLT5-10, LLLT30-10. Also serum ALT was decrease in LLLT5-5 Conclusions : LLLT(30 mW-10 min) is effective on Body weight, food efficiency ratio, the level of serum lipid and protection of liver function by obesity induced by high fat diet, and LLLT(5 mW-5 min) act on decrease of Body weight, food intake and ALT.

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Improvement of High-fat Diet-induced Obesity by Xanthigen in C57BL/6N Mice (잔티젠(Xanthigen)에 의한 고지방식이로 유도된 비만 개선 효과)

  • Choi, Kyeong-Mi;Lee, Youn-Sun;Kim, Wonkyun;Choi, Yung-Hyun;Kwak, Youn-Gil;Jung, Jae-Chul;Lee, Jeongrai;Yoo, Hwan-Soo
    • Journal of Life Science
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    • v.22 no.12
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    • pp.1697-1703
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    • 2012
  • Obesity is a risk factor for numerous metabolic diseases. Recently, naturally occurring compounds that may improve obesity have received increasing attention. Xanthigen is a mixture of fucoxanthin and punicic acid derived from brown seaweed and pomegranate seed, respectively, which have been traditionally used for lipid-lowering effects in humans. In this study, we investigated whether Xanthigen attenuates high-fat diet-induced obesity in C57BL/6N mice. The mice were fed on a normal diet (ND), high-fat diet (HFD), HFD plus 1% Xanthigen or HFD plus 1% green tea extract (GTE) for 11 weeks. Food efficiency ratio (FER) and body weight were significantly reduced in mice fed HFD plus Xanthigen compared to HFD-fed mice. Consistent with the results in body weight change, Xanthigen also significantly decreased the weights of epididymal adipose tissue, retroperitoneal adipose tissue, and liver in HFD plus 1% Xanthigen-fed mice. The serum level of low-density lipoprotein (LDL)-cholesterol was significantly decreased in HFD plus Xanthigen-fed mice compared to HFD-fed mice. These results suggest that Xanthigen may be useful in the development of a functional health food for anti-obesity.

Anti-Obesity Effects of Mixture of Atractylodes macrocephala and Amomum villosum Extracts (사인과 백출 추출 혼합물의 항비만 효과)

  • Kim, Ha Rim;Choi, Bong Keun;Jung, Hyun Jong
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.33 no.5
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    • pp.282-287
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    • 2019
  • In this study, we investigated the anti-obesity effects of various mixtures of Atractylodes macrocephala (AM) and Amomum villosum (AV) water extracts on high-fat diet (HFD) induced mouse model. We classified five groups as follows; control, HFD, HFD + AM extracts : AV extracts (100mg/kg) (1:1), HFD + AM extracts : AV extracts (100mg/kg) (2:1), HFD + AM extracts : AV extracts (100mg/kg) (3:1). Oral administration of various mixtures of AM and AV extracts for 6 weeks inhibited HFD-induced increases of body, liver and epididymal fat weights. Also, lipid profiles including LDL cholesterol were improved by various mixtures of AM and AV extracts treatment compared with HFD-fed group. Lipogenesis-related genes such as acetyl coA carboxylase (ACC) and fatty acid synthase (FAS) in liver changed in a favorable way for lipid biosynthesis by HFD compared to control, but various mixtures of AM and AV extracts-treated groups did not. Our results show that various mixtures of AM and AV extracts can prevent HFD-induced obesity in mice and suggests that the mechanisms are involved in expressions and modifications of lipogenesis-related genes such as ACC and FAS in liver.

Generation of Transgenic Mice with Overexpression of Mouse Resistin

  • Lee, H. T.;J. R. Chun.;K. S. Chung
    • Korean Journal of Animal Reproduction
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    • v.26 no.4
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    • pp.321-328
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    • 2002
  • The hormone resistin is associated with type II diabetes mellitus in rodent model. Resistin impairs glucose tolerance and insulin action. A new class of anti-diabetic drugs were called thiazolidinediones (TZDs) downreguates a resistin. Resistin gene expression is induced during adipocyte differentiation and resistin polypeptide is secreted by adipocytes. But, the correlation between increased adiposity and resistin remains unknown. The objectives of this study was to clone a mouse resistin CDNA and to generate transgenic mice overexpressing mouse resistin gene. The pCMV-mus/resistin gene was prepared from previous recombinant pTargeT$^{TM}$-mus/resistin by digestion of Bgl II, and has used for microin- jection into pronuclei of one cell embryos. Mouse resistin expression was detected in transgenic F$_1$mice by RT-PCR. The transgenic mouse with resistin gene expression has heavier body weight which was measured higher level of plasma glucose than that of normal mouse. And in diet-induced experiments, in fasting group, resistin expression was higher than that of re-feeding group. This result demonstrates that the resistin gene overexpressing mice may be became to obesity and be useful as an animal disease model to be diabetes caused by insulin resistance of resistin.n.