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Impact of high-fat diet and vitamin D_3 supplementation on aortic stenosis establishment in waved-2 epidermal growth factor receptor mutant mice

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Journal of Integrative Medicine 2019年第2期17卷 107-114页

作者： Bérénice Colleville Nicolas Perzo Guillaume Avinée Ana?s Dumesnil Frederic Ziegler Paul Billoir Hélène Eltchaninoff Vincent Richard Eric Durand Department of Biology Institut National de la Santé et de la Recherche Médicale U1096 (Endothélium Valvulopathies et Insuffisance Cardiaque) Normandie University Fédération Hospitalo-Universitaire REMODeling in Valvulopathy and Heart Failure Department of Cardiology Rouen University Hospital Department of Biology Institut National de la Santé et de la Recherche Médicale U1073 (Nutrition Inflammation et Dysfonction de l’axe Intestin-Cerveau) Normandie University Institute for Clinical Biology-General Biochemistry Unit Rouen University Hospital Department of Vascular Hemostasis Rouen University Hospital

Objective: The use of animal models of aortic stenosis(AS) remains essential to further elucidate its pathophysiology and to evaluate new therapeutic strategies. The waved-2 mouse AS model has been proposed;data have indicated that while aortic regurgitation(AR) is effectively induced, development of AS is *** aimed to evaluate the effect of high-fat diet(HFD) and vitamin D_3 supplementation in this ***: HFD and subcutaneous vitamin D_3 injections were initiated at the age of 6 weeks until the age of 6(n = 16, 6-month treatment group) and 9(n = 11, 9-month treatment group) months. Twelve waved-2 mice without supplementation were used as control. Echocardiography was performed at 3, 6 and 9 months. Blood serum analysis(calcium, 1,25(OH)_2D_3 and cholesterol), histology and immunohistochemistry(CD-31, CD-68 and osteopontin) were evaluated at the end of the experiment(6 or 9 months).Results: Total cholesterol and 1,25(OH)_2D_3 were significantly increased relative to the control group. HFD and vitamin D_3 supplementation did result in improvements to the model, since AS was only detected in 6(15.3%) mice(2 in the 3 groups) and AR was developed in the remaining animals. Echocardiographic parameters, fibrosis, thickness, inflammation and valvular calcification, were not significantly different between the 6-month treatment and control groups. Similar results were also observed in the 9-month treatment ***: These results suggest that HFD and vitamin D_3 supplementation have no effect in the waved-2 mouse model. This model essentially mimics AR and rarely AS. Further studies are needed to find a reliable animal model of AS.

关键词： Experimental model Epidermal growth factor receptor Vitamin D3 high-fat diet Aortic stenosis Aortic regurgitation

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Monascus pilosus-fermented black soybean inhibits lipid accumulation in adipocytes and in high-fat diet-induced obese mice

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Asian Pacific Journal of Tropical Medicine 2015年第4期8卷 276-282页

作者： Young-Sil Lee Bong-Keun Choi Hae Jin Lee Dong-Ryung Lee Jinhua Cheng Won-Keun Lee Seung Hwan Yang Joo-Won Suh Center for Nutraceutical and Pharmaceutical Materials Myongji University Interdisciplinary Program of Biomodulation Myongji University Division of Bioscience and Bioinformatics College of Natural ScienceMyongji University

Objective:To explore the anti-obesity effects and the mechanism of action of Monascus pilosus(***)-fermented black soybean(MFBS)extracts(MFBSE)and MFBS powders(MFBSP)in adipocytes and high-fat diet(HFD)-induced obese mice,***:Black soybean was fermented with ***,and the main constituents in MFBS were analyzed by HPLC *** vitro,MFBSE were examined for anti-adipogenic effects using Oil-Red O *** vivo,mice were fed a normal-fat diet(NFD)control,HFD control or HFD containing 1 g/kg MFBSP for 12 weeks,and then body weight gain and tissues weight ***-time PCR and western blot assay were used to determine the mechanism of anti-adipogenic ***:MFBSE inhibited lipid accumulation in 3T3-L1 adipocytes without exerting cell *** treatment in HFD-fed mice significantly decreased the body weight gain compared with the HFD control *** and MFBSP treatment resulted in significantly lower mRNA levels of adipogenesis-related genes,such as peroxisome proliferator-activated receptorγ(PPARγ),fatty acid-binding protein 4(FABP4),and fatty acid synthase(FAS),in adipocytes and in white adipose tissue(WAT)of HFD-induced obese ***:These results suggest that the anti-obesity effects of MFBS are elicited by regulating the expression of adipogenesis-related genes in adipocytes and WAT of HFDinduced obese mice.

关键词： Monascus pilosus Black soybean Adipocytes high-fat diet-induced obese mice Anti-obesity Adipogenesis-related genes

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Effects of alkaline-electrolyzed and hydrogen-rich water,in a high-fat-diet nonalcoholic fatty liver disease mouse model

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World Journal of Gastroenterology 2018年第45期24卷 5095-5108页

作者： Karen Jackson Noa Dressler Rotem S Ben-Shushan Ari Meerson Tyler W LeBaron Snait Tamir Laboratory of Human Health and Nutrition Sciences MIGAL-Galilee Research InstituteKyriat Shmona 11016Israel Tel Hai College Upper Galilee 12110Israel Center of Experimental Medicine Institute for Heart ResearchSlovak Academy of SciencesBratislava 84005Slovakia Molecular Hydrogen Institute UT 48101United States

AIM To identify the effect of hydrogen-rich water(HRW) and electrolyzed-alkaline water(EAW) on high-fat-induced non-alcoholic fatty acid disease in *** Mice were divided into four groups:(1) Regular diet(RD)/regular water(RW);(2) high-fat diet(HFD)/RW;(3) RD/EAW; and(4) HFD/EAW. Weight and body composition were measured. After twelve weeks, animals were sacrificed, and livers were processed for histology and reverse-transcriptase polymerase chain reaction. A similar experiment was performed using HRW to determine the influence and importance of molecular hydrogen(H2) in EAW. Finally, we compared the response of hepatocytes isolated from mice drinking HRW or RW to palmitate *** EAW had several properties important to the study:(1) pH = 11;(2) oxidation-reduction potential of-495 mV; and(3) H2 = 0.2 mg/L. However, in contrast to other studies, there were no differences between the groups drinking EAW or RW in either the RD or HFD groups. We hypothesized that the null result was due to low H2 concentrations. Therefore, we evaluated the effects of RW and low and high HRW concentrations(L-HRW = 0.3 mg H2/L and H-HRW = 0.8 mg H2/L, respectively) in mice fed an HFD. Compared to RW and L-HRW, H-HRW resulted in a lower increase in fat mass(46% vs 61%), an increase in lean body mass(42% vs 28%), and a decrease in hepatic lipid accumulation(P fatty liver disease in mice.

关键词： Hydrogen-rich-water Nonalcoholic fatty liver disease Alkaline water Metabolic syndrome Molecular hydrogen high-fat diet

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Mitofusin-2 ameliorates high-fat diet-induced insulin resistance in liver of rats

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World Journal of Gastroenterology 2013年第10期19卷 1572-1581页

作者： Ke-Xin Gan Chao Wang Jin-Hu Chen Chun-Jing Zhu Guang-Yao Song Department of Internal Medicine Hebei Medical University Department of Endocrinology the General Hospital of Hebei Province

AIM:To investigate the effects of mitofusin-2(MFN2) on insulin sensitivity and its potential targets in the liver of rats fed with a high-fat diet(HFD).METHODS:Rats were fed with a control or HFD for 4 or 8 wk,and were then infected with a control or an MFN2 expressing adenovirus once a week for 3wk starting from the 9th *** glucose(BG),plasma insulin and insulin sensitivity of rats were determined at end of the 4th and 8th wk,and after treatment with different amounts of MFN2 expressing adenovirus(108,109 or 1010 vp/kg body weight).BG levels were measured by Accu-chek Active *** insulin levels were analyzed by using a Rat insulin enzymelinked immunosorbent assay *** resistance was evaluated by measuring the glucose infusion rate(GIR) using a hyperinsulinemic euglycemic clamp *** expression or phosphorylation levels of MFN2 and essential molecules in the insulin signaling pathway,such as insulin receptor(INSR),insulin receptor substrate 2(IRS2),phosphoinositide-3-kinase(PI3K),protein kinase beta(AKT2) and glucose transporter type 2(GLUT2) was assayed by quantitative real-time polymerase chain reaction and ***:After the end of 8wk,the body weight of rats receiving the normal control diet(ND) and the HFD was not significantly different(P>0.05).Compared with the ND group,GIR in the HFD group was significantly decreased(Phigher than those in the ND group(P<0.05).Expression of MFN2 mRNA and protein in liver of rats was significantly downregulated in the HFD group(P<0.01) after 8 wk of HFD *** expression of INSR,IRS2 and GLUT2 were down-regulated markedly(P<0.01).Although there were no changes in PI3K-P85 and AKT2 expression,their phosphorylation levels were decreased significantly(P<0.01).After intervention with MFN2 expressing adenovirus for 3wk,the expression of MFN2 mRNA and protein levels we

关键词： Mitofusin-2 high-fat diet Insulin resistance Insulin pathway Liver

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Green coffee bean extract improves obesity by decreasing body fat in high-fat diet-induced obese mice

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Asian Pacific Journal of Tropical Medicine 2016年第7期9卷 616-624页

作者： Bong-Keun Choi Sung-Bum Park Dong-Ryung Lee Hae Jin Lee Ying-Yu Jin Seung Hwan Yang Joo-Won Suh Nutra Pharm Tech Giheung-gu Interdisciplinary Program of Biomodulation Myongji University Center for Nutraceutical and Pharmaceutical Materials Myongji University

Objective:To evaluate possible lipid catabolism and body fat regulation effects of 3-caffeoylquinic acid in Green coffee bean extract(GCBE) in high-fat diet(HFD)-induced obese ***:Obesity was induced in mice using a HFD for four ***,mice were fed only HFD or HFD with GCBE at 50,100,and 200 mg/*** acid synthesis mechanism regulation of body fat was investigated through real-time PCR and Western blot *** fat reduction was measured through dual-energy X-ray ***:In HFD-induced obese mice,GCBE treatment significantly decreased body weight gain,liver weight and white adipose tissue weights with regulation of adipose tissue lipolysis hormones,like adiponectin and *** treatment decreased mR NA expression levels of adipogenesis and adipocyte metabolism related genes in adipose tissues and the liver,and decreased the corresponding protein *** energy X-ray absorptiometry measurements were used to compare body fat between mice on high-fat and those treated with *** treated mice had a lower fat mass compared to HFD alone fed mice and relative body weight and fat mass were markedly ***:GCBE has a potential anti-obesity effect with lowering body fat accumulation by regulating adipogenesis and lipid metabolism-related genes and proteins in WAT and liver.

关键词： Green coffee bean extract high-fat diet induced obese mice Adipogenesis Body fat Dual energy X-ray absorptiometry

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A fermented mixed tea made with camellia (Camellia japonica) and third-crop green tea leaves prevents nonalcoholic steatohepatitis in Sprague-Dawley rats fed a high-fat and high-cholesterol diet

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Hepatobiliary Surgery and Nutrition 2018年第3期7卷 175-184页

作者： Katsuhisa Omagari Kazuhito Suruga Akira Kyogoku Satomi Nakamura Ai Sakamoto ShintaNishioka Mayuko Ichimura Yuji Miyata Koichi Tajima Koichi Tsuneyama Kazunari Tanaka Department of Nutrition Faculty of Nursing and NutritionGraduate School of Human Health ScienceUniversity of NagasakiNagasakiJapan Division of Nutritional Science Graduate School of Human Health ScienceUniversity of NagasakiNagasakiJapan Agriculture and Forestry Technical Development Center Nagasaki PrefTea LaboratoryNagasakiJapan Agriculture and Forestry Technical Development Center Nagasaki PrefForest Research SectionNagasakiJapan Department of Pathology and Laboratory Medicine Tokushima University Graduate SchoolTokushimaJapan

Background:Established treatments for non-alcoholic steatohepatitis (NASH) are few, thus it is imperative to develop novel dietary strategies that can prevent NASH. A fermented mixed tea (FMT) made with Camellia japonica (Japanese camellia) and third- crop green tea leaves by tea-rolling processing was reported to reduce body weight and adipose tissue weight in Sprague-Dawley (SD) rats. Because visceral fat is one of the most important factors for the development of hepatic steatosis, this FMT supplementation can be a candidate dietary strategy for the prevention of NASH. Methods:Nine-week-old male SD rats were fed a high-fat and high-cholesterol (HFC) diets with or without FMT (camellia and third-crop green tea leaves at ratios of 1:5, 1:2 and 1:1) for 9 weeks (n=6–7/group). Histopathology, serology and expressions of ifbrogenetic, proinlfammatory, oxidative stress and lipid metabolism-related genes in the liver were evaluated. Results:Histologically, HFC diet with FMT at a ratio of 1:5 dramatically reduced NASH progression (14%) compared to the HFC diet without FMT (100%). FMT at a ratio of 1:5 reduced hepatic steatosis due to the activation of microsomal triglyceride transfer protein, and FMT at a ratio of 1:2 reduced mRNA levels of some proinlfammatory, lipid metabolism-related, ifbrogenic and oxidative stress marker genes. Conclusions:Our data suggest that FMT at a ratio of 1:5 or 1:2 likely possesses a preventive effect on NASH progression.

关键词： Camellia leaves green tea leaves fermented tea nonalcoholic steatohepatitis high-fat and high-cholesterol (HFC) diet

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Astragaloside IV prevents high-fat diet induced obesity partially through enhancing leptin signaling transduction

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中国药理学通报 2015年第B11期31卷 136-137页

Aim To investigate the effects of astragaloside IV （ASI） on high-fat diet （HFD） induced obese mice. Methods The male mice aged 6 weeks were randomly divided into three groups （u- 18/group）, namely control group, model group and ASI-treated group. Control group were fed with standard diet, whereas the other two groups were given high fat diet. ASI-treated mice were daily intraperitoneally injected with ASI （25 nag · kg^-1）. Mean- while, the other group mice were treated with saline. Body weight of mice was monitored every week and lasted for 13 weeks. Serum cholesterol and triglyceride content were measured with respective kits. Serum leptin level was deter- mined by ELISA kit. Expression of leptin receptor in hypothalamus was measured by Western blot assay. Gene ex- pression of neuropeptide Y （NPY） and agouti-related protein （AGRP） in hypothalamus was detected by qPCR assay. In addition, leptin receptor-deficient db/db mice were given intraperitoneally with ASI （25 mg ~ kg-1） or saline for 13 weeks （u- 8/group）. Results ASI blocked body weight gain, suppressed appetite, improved leptin resistance, lowered serum triacylglycerol （TG） and total cholesterol （TC） contents, reduced accumulation of fat tissues and pre- vented enlargement of adipose cells in HFD fed mice. Furthermore, ASI increased the protein expression level of lep- tin receptor in hypothalamus, and inhibited the mRNA expression levels of NPY and AGRP. However, ASI could not decrease body gain in leptin receptor - deficient db/db mice as well as the mRNA expression levels of NPY and AGRP. Conclusion The study suggested that ASI could efficiently prevent HFD-induced obesity in C57BL/6 mice,which was partially mediated through enhancing leptin signaling transduction.

关键词： astragaloside IV obesity high-fat diet appetite leptin receptor neuropeptide Y

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Prolonged high-fat-diet feeding promotes non-alcoholic fatty liver disease and alters gut microbiota in mice

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World Journal of Hepatology 2019年第8期11卷 619-637页

作者： Kandy T Velázquez Reilly T Enos Jackie E Bader Alexander T Sougiannis Meredith S Carson Ioulia Chatzistamou James A Carson Prakash S Nagarkatti Mitzi Nagarkatti E Angela Murphy Department of Pathology Microbiology and Immunology School of Medicine University of South Carolina Columbia SC 29209 United States College of Health Professions University of Tennessee Health Sciences Center Memphis TN 38163 United States

BACKGROUND Non-alcoholic fatty liver disease (NAFLD) has become an epidemic largely due to the worldwide increase in obesity. While lifestyle modifications and pharmacotherapies have been used to alleviate NAFLD, successful treatment options are limited. One of the main barriers to finding safe and effective drugs for long-term use in NAFLD is the fast initiation and progression of disease in the available preclinical models. Therefore, we are in need of preclinical models that (1) mimic the human manifestation of NAFLD and (2) have a longer progression time to allow for the design of superior treatments. AIM To characterize a model of prolonged high-fat diet (HFD) feeding for investigation of the long-term progression of NAFLD. METHODS In this study, we utilized prolonged HFD feeding to examine NAFLD features in C57BL/6 male mice. We fed mice with a HFD (60% fat, 20% protein, and 20% carbohydrate) for 80 wk to promote obesity (Old-HFD group, n = 18). A low-fat diet (LFD)(14% fat, 32% protein, and 54% carbohydrate) was administered for the same duration to age-matched mice (Old-LFD group, n = 15). An additional group of mice was maintained on the LFD (Young-LFD, n = 20) for a shorter duration (6 wk) to distinguish between age-dependent and age-independent effects. Liver, colon, adipose tissue, and feces were collected for histological and molecular *** Prolonged HFD feeding led to obesity and insulin resistance. Histological analysis in the liver of HFD mice demonstrated steatosis, cell injury, portal and lobular inflammation and fibrosis. In addition, molecular analysis for markers of endoplasmic reticulum stress established that the liver tissue of HFD mice have increased phosphorylated Jnk and CHOP. Lastly, we evaluated the gut microbial composition of Old-LFD and Old-HFD. We observed that prolonged HFD feeding in mice increased the relative abundance of the Firmicutes phylum. At the genus level, we observed a significant increase in the abundance

关键词： high-fat diet Obesity Non-alcoholic fatty liver disease Gut microbiome Endoplasmic reticulum stress Inflammation Fibrosis

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Jianpi Qutan Fang(健脾祛痰方)induces anti-atherosclerosis and ameliorates endothelial cell injury in high-fat diet rats via an anti-inflammatory and inhibiting Janus kinase/signal transducer and activator of transcription signaling pathway

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Journal of Traditional Chinese Medicine 2023年第6期43卷 1168-1175页

作者： LIU Yue ZHANG Fan HAN Xiaomeng XU Ningyang ZHAO Yu WANG Qige WANG Jianan LU Bingjiu Zhang Yan Studio of Prestigious Chinese physician Zhang Yan Affiliated hospitalLiaoning University of Traditional Chinese MedicineShenyang 110000China Liaoning University of Traditional Chinese Medicine Shenyang 110000China Department of Infectious Disease Affiliated hospitalLiaoning University of Traditional Chinese MedicineShenyang 110000China Studio of Prestigious Chinese physician Zhang Yan Department of Cardiopulmonary RehabilitationAffiliated hospitalLiaoning University of Traditional Chinese MedicineShenyang 110000China

OBJECTIVE:To investiage the possible mechanism underlying the effect of the Jianpi Qutan Fang(健脾祛痰方,JPQT)on Atherosclerosis(AS)which is the main pathological process of most cardiovascular diseases that affect millions of adults ***:In the present study,rats were fed with a high-fat-diet(HFD)with vitamin D3 for 16 weeks and were orally administered atorvastatin treatment and different doses of *** changes and ultrastructural changes in the aorta were evaluated through hematoxylin-eosin staining and transmission electron microscopy(TEM),*** of cytokine signaling 1(SOCS1)/Janus kinase 1(JAK1)/signal transducer and activator of transcription 1(STAT1)signaling pathways were detected through Western ***:JPQT treatment decreased the lipid levels of triglyceride,low-density lipoprotein,and cholesterol,the inflammatory cytokine levels of interleukin 1 beta(IL-1β),IL-6 and IL-8 in rat serum,but increased high-density lipoprotein and IL-10 serum *** treatment ameliorated pathological changes in the aorta of AS model ***,JPQT upregulated SOCS1 protein expression and down-regulated phosphorylated protein expression levels of p-JAK1 and ***:These results suggest that JPQT induces anti-atherosclerosis effects through anti-inflammatory and inhibiting JAK/STAT signaling pathways in HFD fed rats.

关键词： anti-inflammatory agents Janus kinases STAT transcription factors signal transduction diet high-fat antiatherosclerosis Jianpi Qutan Fang

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Study the Effect of Different Levels of Zucchini (<i>Cucurbita pepo</i>L.) on the Biological Indicators for the Prevention of Cardiovascular Disease in Rats Fed high-fat Diets

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Food and Nutrition Sciences 2020年第2期11卷 63-81页

作者： El-Sayeda G. E. El-Sahar Hala R. A. Sopeah Mona S. Almujaydil Home Economic Department Faculty of Specific Education Ain Shams University Cairo Egypt Food Sciences and Human Nutrition College of Agriculture and Veterinary Medicine Qassim University Al-Mulida KSA.

The effects of fresh zucchini on nutritional status, and biological indicators for the prevention of cardiovascular disease in rats fed high-fat diets investigated in this study. Thirty Sprague Dawley rats were randomly divided into two main groups the first, negative control group Co (-) (n = 6), fed basal diet, The second group (n = 24) fed high-fat diet (containing basal diet + 5% tallow + 1% cholesterol + 0.02% bile salt). This group was divided into four subgroups each group 6 rats: group positive control co (+) fed high-fat diet only, group 1 (G (1)) fed high-fat diet plus 10% zucchini, group 2 (G (2) fed high-fat diet plus 15% zucchini and group 3 (G (3)) fed high-fat diet plus 20% zucchini. The levels of serum total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) were measured after eight wk. of experimental treatment. The pathologic changes of the heart, spleen and kidney were evaluated. SPSS, one way ANOVA was used to analyze the results. The results indicated that the mean values of body weight gain (BWG) and feed efficiency ratio (FIR) in G (2) and G (3) showed significant decrease compared to co (-), co (+) and G 1. The results showed that in groups (G1, G2 and G3) the relative weight of heart had significant increase when compared with control negative group. But liver and spleen weight had no significant difference when compared with control negative and positive group, the levels of TC, TG and LDL-C were significantly increased in co (+) (P high fat diet containing different levels of zucchini (10%, 15% and 20%) had significant decrease in TC and LDL-C compared with co (+), also G2 and G3 had improve significant in HDL-C when compared with co. (+). The groups fed on zucchini give results similar to group co. (-). The best treatment was zucchini (15% and 20%) which had lowest values of total lipid cholesterol and LDL-C, and t

关键词： Atherogenic Index Cardio Protective Cucurbita pepo L. high-fat Diet HDL-C LDL-C Lipid Profile Zucchini

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