• Title/Summary/Keyword: PPAR-${\alpha}$

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Hog millet (Panicum miliaceum L.)-supplemented diet ameliorates hyperlipidemia and hepatic lipid accumulation in C57BL/6J-ob/ob mice

  • Park, Mi-Young;Jang, Hwan-Hee;Kim, Jung-Bong;Yoon, Hyun-Nye;Lee, Jin-Young;Lee, Young-Min;Kim, Jae-Hyun;Park, Dong-Sik
    • Nutrition Research and Practice
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    • v.5 no.6
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    • pp.511-519
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    • 2011
  • Dietary intake of whole grains reduces the incidence of chronic diseases such as obesity, diabetes, cardiovascular disease, and cancer. In an earlier study, we showed that Panicum miliaceum L. extract (PME) exhibited the highest anti-lipogenic activity in 3T3-L1 cells among extracts of nine different cereal grains tested. In this study, we hypothesized that PME in the diet would lead to weight loss and augmentation of hyperlipidemia by regulating fatty acid metabolism. PME was fed to ob/ob mice at 0%, 0.5%, or 1% (w/w) for 4 weeks. After the experimental period, body weight changes, blood serum and lipid profiles, hepatic fatty acid metabolism-related gene expression, and white adipose tissue (WAT) fatty acid composition were determined. We found that the 1% PME diet, but not the 0.5%, effectively decreased body weight, liver weight, and blood triglyceride and total cholesterol levels (P < 0.05) compared to obese ob/ob mice on a normal diet. Hepatic lipogenic-related gene ($PPAR{\alpha}$, L-FABP, FAS, and SCD1) expression decreased, whereas lipolysis-related gene (CPT1) expression increased in animals fed the 1% PME diet (P < 0.05). Long chain fatty acid content and the ratio of C18:1/C18:0 fatty acids decreased significantly in adipose tissue of animals fed the 1% PME diet (P < 0.05). Serum inflammatory mediators also decreased significantly in animals fed the 1% PME diet compared to those of the ob/ob control group (P < 0.05). These results suggest that PME is useful in the chemoprevention or treatment of obesity and obesity-related disorders.

The Effects of $Hwangryunhaedok$-$tang$ Pharmacopuncture by the Anti-inflammatory Action of Suppression of iNOS Production on Mice with Allergic Rhinitis (황련해독탕 약침액의 iNOS 생성 억제를 통한 항염증효과가 알레르기성 비염 유발 생쥐의 치료에 미치는 영향)

  • Cho, Jae-Yong;Kim, Yu-Jong;Kim, Eun-Jung;Lee, Seung-Deok;Kim, Kap-Sung
    • Journal of Acupuncture Research
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    • v.29 no.1
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    • pp.89-101
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    • 2012
  • Objectives : The purpose of this study was find out the therapeutic effects of its exclusive use on the rat with allergic rhinitis. Materials and Methods : Thirty Sprague-Dawley rats were divided into three group : normal group, control group and sample group. To induce the allergic rhinitis in control group and sample group, rats were sensitized intraperitoneally with 0.1% ovalumin solution 3 times at intervals of 1 week. Then intranasal sensitization was performed by diffusing 0.1% ovalumin solution 3 times at intervals of 2 days. After that time, rats in the sample group were administered by $Yonghyang$($LI_{20}$) subcutaneously to treat the inflammation. Results : 1. The anti-oxidant effects of $Hwangryunhaedok-tang$ extract was dose-dependantly increased. 2. The RAW 264.7 cells were treated with LPS for 1 hours prior to the addition of indicated concentrations ($0.4,-1.0mg/m{\ell}$) of HHT, and the cells were further incubated for 24 hours. The LPS-induced iNOS mRNA expression and NO production were dose-dependantly decreased in HHT treated RAW 264.7 cells. 3. The number of eosinophil in HP noticeably decreased than CON and this decrease had probability. The infiltration of eosinophil in HP noticeably decreased than CON. 4. The damaged mucosa as disruption of cilia in respiratory cell and vacant mucose secreting cell were increased CON, but HP same as normal configuration. Decrease of PAS positive cell were shown in CON, but goblet cell occupied with neutral mucous were shown in HP. Decrease of mucosal stress(HSP70). Decrease of perennial sign(PPAR-${\gamma}$). Decrease of icthing and sneezing intricate neurotransmitter-(substance P). 5. The anti-inflammation of HHT pharmacopuncture for AR caused mucosa comes to result as belows. Decrease of pre-inflammation cytokine(TNF-${\alpha}$). Decrease of transcription factor (NF-${\kappa}B$ p65). Decrease of transcription factor inhibitor(p-$I{\kappa}B$). Decrease of inflammation cytokine(iNOS). Conclusions : The results may suggest that administration treatment using $Hwangryunhaedok-tang$ pharmacopucnture decreases the inflammatory response on an animal model with allergic rhinitis.

Anti-obesity Activities of Cirsium setidens Nakai Ethanolic Extract (고려엉겅퀴 주정 추출물을 함유하는 임상시험제품의 항비만 활성 평가)

  • Cho, Bong-Yeon;Choi, Sun-Il;Choi, Seung-Hyun;Sim, Wan-Sup;Xionggao, Han;Ra, Moon-Jin;Kim, Sun-Young;Kang, Il-Jun;Han, Kyoung-Chan;Lee, Ok-Hwan
    • Journal of Food Hygiene and Safety
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    • v.33 no.5
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    • pp.389-398
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    • 2018
  • The purpose of this study was to evaluate anti-obesity activity of Cirsium setidens Nakai test material (CNTM) in 3T3-L1 adipocytes and obese C57BL/6J mice fed with a high-fat diet using various obesity-related in vitro experiments. During adipocyte differentiation, CNTM significantly inhibited lipid accumulation and ROS production compared to controls. To evaluate whether CNTM could exert glycerol release effects on mature 3T3-L1 adipocytes, we treated cells with various concentrations of CNTM for 1 h. Treatment of mature adipocytes with $160-320{\mu}g/mL$ of CNTM increased the release of glycerol, but not in a significant dose-dependent manner. Anti-adipogenic and anti-lipogenic effects of CNTM seemed to be mediated by the inhibition of $PPAR{\gamma}$ and $C/EBP{\alpha}$. Moreover, CNTM stimulated fatty acid oxidation in an AMPK-dependent manner. CNTM-treated groups of C57BL/6J mice showed reduced body weights and adipose tissue weight with improving serum lipid profiles and adiponectin protein expression in obese C57BL/6J mice fed with a high-fat diet. These results suggest that CNTM might have anti-obesity effect on adipogenesis and lipid metabolism in vitro and in vivo. This presents the possibility of developing a treatment for obesity using nontoxic natural resources.

Effect of the supplementation of Coconopsis lanceolata extract on lipid metabolism amelioration in type 2 diabetes mouse model induced by high fat diet (울릉도 섬더덕 추출물의 급여가 제2형 당뇨 동물의 지질대사 개선에 미치는 영향)

  • Yun, Won-Kap;Bae, Hyun-Ji;Kim, You-Jeong;Kwon, O Jun;Im, Moo Hyeog;Cho, Hyun Duk;Kim, Taewan
    • Food Science and Preservation
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    • v.21 no.1
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    • pp.107-113
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    • 2014
  • The present study was designed to investigate the antihyperlipidemic effect of Coconopsis lanceolata extract in C57BL/6J mice. The mice were divided into four groups: normal diet group (ND), high fat diet group (HFD), positive control group with 0.05% metformin (PC), Coconopsis lanceolata extract group (UCL). After 5 weeks of feeding, average body weight of the UCL group mice was slightly decreased, while that of the HFD group significantly increased) Also, liver and adipose tissue weights in the UCL group significantly increased. The levels of trigliceride (TG) and total in the plasma of UCL-supplemented group were significantly lower than those of high fat diet group. On the other hand, HDL-cholesterol level was increased. Expression level of proteins related with adipogenesis such as SREBP-1c, ACC, and FAS in the liver of the UCL group mice was much lower comparing with the HFD group mice. In conclusion, the results showed that the Coconopsis lanceolata extract possesses significant antihyperlipidemic effects in C57BL/6J mice.

The Effects of Fermentated Ephedra sinica on Obese Rats Fed by High Fat Diet (발효마황이 고지방식이로 유발된 비만 흰쥐에 미치는 효과)

  • Shin, Young-Jin;Kim, Ho-Jun;Lee, Myeong-Jong;Keum, Dong-Ho
    • Journal of Korean Medicine Rehabilitation
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    • v.19 no.4
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    • pp.37-57
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    • 2009
  • Objectives : This study was performed to investigate the effects of fermented Ephedra sinica (FMH) nano-extract compared Ephedra sinica (MH) on 3T3 L1 cell viability, lipid and glycometabolism, Obes rats' behavior and state-trait anxiety. Methods and materials : Each of 6 rats was divided into a normal diet, HFD, MH, and FMH. We fed a HFD group of rats a high fat diet and administered normal saline for 8 weeks. And we fed an experimental group of rats a high fat diet and administered an extract of Ephedra sinica and fermentated Ephedra sinica for 8 weeks. At the end of the experiment, the rats were sacrificed to determine their chemical composition. Ephedra sinica and fermentated Ephedra sinica was examined in effects of 3T3 L1 cell viability, lipid and glycometabolism, rats' behavior and state-trait anxiety. Results : 1. Ephedra sinica and fermentated Ephedra sinica didn't induce cytotoxicity at 3L3 L1 cell. 2. Fermentated Ephedra sinica by Lactococcus confusus inhibit $PPAR-{\gamma}$ activation and promote $TNF-{\alpha}$ activation. 3. In MH and FMH group, the body weight and FER decrease occured significantly than in HFD group. 4. No side effect of Ephedra sinica appeared in FMH group, so fermentated Ephedra sinica have a capacity of anti-anxiety. 5. Serum total cholesterol, triglyceride, HDL-cholesterol and creatine of HFD+Ephedra sinica, HFD+LO group were decreased compared with that of HFD group. Decreasing rates of sample group was significant(p<0.05). 6. In both MH and FMH group serum HDL was increased(P>0.05). 7. In MH group only TG was decreased, but in FMH group total cholesterol, TG, and glucose were decreased(P>0.05). Conclusions : Fermentated Ephedra sinica by Lactococcus confusus was superior to Ephedra sinica in capacity of anti-obesity. Further fermentated Ephedra sinica have no Ephedra sinica's side effect.

Effect of ciglitazone on adipogenic transdifferentiation of bovine skeletal muscle satellite cells

  • Zhang, Junfang;Li, Qiang;Yan, Yan;Sun, Bin;Wang, Ying;Tang, Lin;Wang, Enze;Yu Jia;Nogoy, Kim Margarette Corpuz;Li, Xiangzi;Choi, Seong-Ho
    • Journal of Animal Science and Technology
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    • v.63 no.4
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    • pp.934-953
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    • 2021
  • Ciglitazone is a member of the thiazolidinedione family, and specifically binds to peroxisome proliferator-activated receptor-γ (PPARγ), thereby promoting adipocyte differentiation. We hypothesized that ciglitazone as a PPARγ ligand in the absence of an adipocyte differentiation cocktail would increase adiponectin and adipogenic gene expression in bovine satellite cells (BSC). Muscle-derived BSCs were isolated from six, 18-month-old Yanbian Yellow Cattle. The BSC were cultured for 96 h in differentiation medium containing 5 µM ciglitazone (CL), 10 µM ciglitazone (CM), or 20 µM ciglitazone (CH). Control (CON) BSC were cultured only in a differentiation medium (containing 2% horse serum). The presence of myogenin, desmin, and paired box 7 (Pax7) proteins was confirmed in the BSC by immunofluorescence staining. The CL, CM, and CH treatments produced higher concentrations of triacylglycerol and lipid droplet accumulation in myotubes than those of the CON treatment. Ciglitazone treatments significantly increased the relative expression of PPARγ, CCAAT/enhancer-binding protein alpha (C/EBPα), C/EBPβ, fatty acid synthase, stearoyl-CoA desaturase, and perilipin 2. Ciglitazone treatments increased gene expression of Pax3 and Pax7 and decreased expression of myogenic differentiation-1, myogenin, myogenic regulatory factor-5, and myogenin-4 (p < 0.01). Adiponectin concentration caused by ciglitazone treatments was significantly greater than CON (p < 0.01). RNA sequencing showed that 281 differentially expressed genes (DEGs) were found in the treatments of ciglitazone. DEGs gene ontology (GO) analysis showed that the top 10 GO enrichment significantly changed the biological processes such as protein trimerization, negative regulation of cell proliferation, adipocytes differentiation, and cellular response to external stimulus. Kyoto Encyclopedia of Genes and Genomes pathway analysis showed that DEGs were involved in the p53 signaling pathway, PPAR signaling pathway, biosynthesis of amino acids, tumor necrosis factor signaling pathway, non-alcoholic fatty liver disease, PI3K-Akt signaling pathway, and Wnt signaling pathway. These results indicate that ciglitazone acts as PPARγ agonist, effectively increases the adiponectin concentration and adipogenic gene expression, and stimulates the conversion of BSC to adipocyte-like cells in the absence of adipocyte differentiation cocktail.

Enrichment of Short-Chain Ceramides and Free Fatty Acids in the Skin Epidermis, Liver, and Kidneys of db/db Mice, a Type 2 Diabetes Mellitus Model

  • Kim, Minjeong;Jeong, Haengdueng;Lee, Buhyun;Cho, Yejin;Yoon, Won Kee;Cho, Ahreum;Kwon, Guideock;Nam, Ki Taek;Ha, Hunjoo;Lim, Kyung-Min
    • Biomolecules & Therapeutics
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    • v.27 no.5
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    • pp.457-465
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    • 2019
  • Patients with diabetes mellitus (DM) often suffer from diverse skin disorders, which might be attributable to skin barrier dysfunction. To explore the role of lipid alterations in the epidermis in DM skin disorders, we quantitated 49 lipids (34 ceramides, 14 free fatty acids (FFAs), and cholesterol) in the skin epidermis, liver, and kidneys of db/db mice, a Type 2 DM model, using UPLC-MS/MS. The expression of genes involved in lipid synthesis was also evaluated. With the full establishment of hyperglycemia at the age of 20 weeks, remarkable lipid enrichment was noted in the skin of the db/db mice, especially at the epidermis and subcutaneous fat bed. Prominent increases in the ceramides and FFAs (>3 fold) with short or medium chains ($LXR{\alpha}/{\beta}$ and $PPAR{\gamma}$, nuclear receptors promoting lipid synthesis, lipid synthesis enzymes such as elongases 1, 4, and 6, and fatty acid synthase and stearoyl-CoA desaturase were highly expressed in the skin and livers of the db/db mice. Collectively, our study demonstrates an extensive alteration in the skin and systemic lipid profiles of db/db mice, which could contribute to the development of skin disorders in DM.

Immuno-enhancing and Anti-obesity Effect of Abelmoschus manihot Root Extracts (금화규(Abelmoschus manihot) 뿌리 추출물의 면역증진 및 항비만효과)

  • Yu, Ju Hyeong;Geum, Na Gyeong;Ye, Joo Ho;Jeong, Jin Boo
    • Korean Journal of Plant Resources
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    • v.34 no.5
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    • pp.411-419
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    • 2021
  • In this study, we investigated in vitro immune-enhancing and anti-obesity activity of Abelmoschus manihot roots (AMR) in mouse macrophage RAW264.7 cells and mouse adipocytes 3T3-L1 cells. AMR increased the production of immunostimulatory factors such as nitric oxide (NO), inducible nitric oxide synthase (iNOS), interleukin-1β (IL-1β), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) in RAW264.7 cells. The inhibition of toll like receptor (TLR) 2 and 4 blocked AMR-mediated production of immunostimulatory factors in RAW264.7 cells. In addition, the inhibition of mitogen-activated protein kinases (MAPKs) signaling pathway reduced AMR-mediated production of immunostimulatory factors. From these results, AMR is considered to have immune-enhancing activity through TLR2/4-mediated activation of MAPKs signaling pathway. In addition, AMR inhibited lipid accumulation and reduced the protein level such as CCAAT enhancer-binding protein alpha (CEBPα), peroxisome proliferator-activated receptor gamma (PPARγ), perilipin-1, adiponectin and fatty acid binding protein 4 (FABP4) associated with lipid accumulation in 3T3-L1 cells, indicating that AMR may have anti-obesity activity. Based on these results, AMR is expected to be used as a potential functional agent for immune enhancement and anti-obesity.

Non-alcoholic fatty liver protective effects, and studies on the mechanism of action of Crataegi Fructus (산사의 NAFLD 보호 효과 및 그 작용기전에 관한 연구)

  • Kim, Min-Chul;Kong, Ryong;Han, Hyoung-Sun;Kang, Dam-hee;Lee, Seung-Jin;Lee, Cheon-Cheon;Wang, Seo;Kwon, Dong-Yeul;Kang, Ok-Hwa
    • The Korea Journal of Herbology
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    • v.33 no.6
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    • pp.61-70
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    • 2018
  • Objectives : Non-alcoholic fatty liver disease (NAFLD) is characterized by the accumulation of hepatic triglycerides (TG) that leads to inflammation and fibrosis. Crataegi Fructus ethanol extract (CE) is a korean traditional herb that used for digestive diseases. It has been investigated that CE has the effect that prevent hepatotoxicity caused by CCl4 or GaIN and regulate the inflammatory in several organs. However, a hypolipidemic effect of CF has not been reported. Methods : The purpose of this study is that examine the lipid accumulation inhibitory effect of CE on NAFLD. We checked the body and liver weight change of MCD-diet induced mice with/without administration of CE. The blood lipid levels of C57BL/6J mice were checked by biochemistry. Also we observed the liver histology of MCD-diet induced mice and investigate the molecular mechanisms in MCD-diet-induced NAFLD in C57BL/6J mice. Results : CE improved MCD-diet-induced lipid accumulation and TG and TC levels. Also, CE decreased hepatic lipogenesis such as SREBP-1, $C/EBP{\alpha}$, $PPAR{\gamma}$, ACC and FAS. Besides, we also found out that CE increased AMPK phosphorylation. These results indicated that CE has the same ability to activate AMPK and then reduce SREBP-1, and FAS expression, finally leading to inhibit hepatic lipogenesis and hepatic antioxidative ability. Conclusions : In this report, we found CE exerted a regulatory effect on lipid accumulation by decreasing lipogenesis in MCD-diet induced NAFLD model. Therefore, CE extract may be active in the prevention of fatty liver.

Effect of aerobic exercise on peroxisome proliferator-activated receptor α anti-inflammatory in white adipose tissue (백색지방조직에서 peroxisome proliferator-activated receptor α 항염증에 대한 유산소 운동의 영향)

  • Sun-Hyo Jeong
    • Journal of the Korean Applied Science and Technology
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    • v.40 no.1
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    • pp.1-12
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    • 2023
  • It was investigated whether a combination of PPARα activator fenofibrate and swimming exercise (H/F/S) would have a beneficial synergistic effect on improving inflammation of white adipose tissue compared to the single prescription of fenofibrate (H/F) and swimming exercise (H/S) in male mice that fed high fat diet. The body weight, weight of white adipose tissue and total cholesterol levels in the serum increased in mice-fed high fat diets (H) compared to mice-fed low fat diets (L). Compared to H, both H/F and H/S decreased these. These levels reduced by fenofibrate were more effectively reduced by the combination of fenofibrate and swimming exercise (H/F/S). As a result of examining the expression of inflammatory cytokines genes and fatty acid oxidation genes in white adipose tissue, H increased compared to L, both H/F and H/S decreased compared to H, and H/F/S decreased further compared to H/F. Thus, this study revealed that the combination of fenofibrate and swimming exercise in male mice fed high-fat diet suppresses inflammation of white adipose tissue caused by obesity through promoted fatty acid oxidation more effectively than the fenofibrate alone, and suggested a practical way to improve inflammation of adipose tissue caused by obesity.