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Dual probiotic strains suppress high fructose-induced metabolic syndrome

World Journal of Gastroenterology 2013年第2期19卷 274-283页

作者： Do-Young Park Young-Tae Ahn Chul-Sung Huh Robin A McGregor myung-sook choi Korea Yakult Co. Ltd.YonginGyeonggi 449-901South Korea Department of Food Science and Nutrition Center for Food and Nutritional GenomicsKyungpook National UniversityDaegu 702-701South Korea

AIM:To investigate the effect of novel probiotics on the clinical characteristics of high-fructose induced metabolic ***:Male Wistar rats aged 4 wk were fed a 70% w/w high-fructose diet(n = 27) or chow diet(n = 9) for 3 wk to induce metabolic syndrome,the rats were then randomized into groups and administered probiotic [Lactobacillus curvatus(***) HY7601 and Lactobacillus plantarum(***) KY1032] at 109 cfu/d or 1010 cfu/d or placebo by oral gavage for 3 *** intake and body weight were measured once a *** 6 wk,the rats were fasted for 12 h,then anesthetized with diethyl ether and *** samples were taken from the inferior vena cava for plasma analysis of glucose,insulin,C-peptide,totalcholesterol,triglycerides and thiobarbituric acid-reacting ***-time polymerase chain reaction was performed using mouse-specific Taqman probe sets to assess genes related to fatty acid β-oxidation,lipogenesis and cholesterol metabolism in the *** gene expression was normalized to the housekeeping gene,glyceraldehyde-3-phosphate ***:Rodents fed a high-fructose diet developed clinical characteristics of the metabolic syndrome including increased plasma glucose,insulin,triglycerides,total cholesterol and oxidative stress levels,as well as increased liver mass and liver lipids compared to chow fed *** treatment(*** HY7601 and *** KY1032) at high(1010 cfu/d) or low dosage(109 cfu/d) lowered plasma glucose,insulin,triglycerides and oxidative stress *** high-dose probiotic treatment reduced liver mass and liver *** treatment reduced lipogenesis via downregulation of SREBP1,FAS and SCD1 mRNA levels and increased β-oxidation via up-regulation of PPARα and CPT2 mRNA ***:Probiotic *** HY7601 and *** KY1032 combined suppressed the clinical characteristics of high-fructose-induced metabolic syndrome,therefore,may provide a natura

关键词： Dyslipidemia Fasting glucose Gut microbiota High-fructose diet Inflammation Insulin resistance Lactobacillus Metabolic syndrome Oxidative stress Probiotic

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Garcinia Cambogia attenuates diet-induced adiposity but exacerbates hepatic collagen accumulation and inflammation

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World Journal of Gastroenterology 2013年第29期19卷 4689-4701页

作者： Young-Je Kim myung-sook choi Yong Bok Park Sang Ryong Kim Mi-Kyung Lee Un Ju Jung Department of Food Science and Nutrition Kyungpook National University Daegu 702-701 South Korea Center for Food and Nutritional Genomics Research Kyungpook National University Daegu 702-701 South Korea School of Life Sciences and Biotechnology Kyungpook National University Daegu 702-701 South Korea Brain Science and Engineering Institute Kyungpook National University Daegu 702-701 South Korea Department of Food and Nutrition Sunchon National University Jeonnam 540-742 South Korea

AIM: To investigate long-term effects of Garcinia Cambogia (GC), weight-loss supplement, on adiposity and non-alcoholic fatty liver disease in obese mice. METHODS: Obesity-prone C57BL/6J mice were fed a high-fat diet (HFD, 45 kcal% fat) with or without GC (1%, w/w) for 16 wk. The HFD contained 45 kcal% fat, 20 kcal% protein and 35 kcal% carbohydrate. They were given free access to food and distilled water, and food consumption and body weight were measured daily and weekly, respectively. Data were expressed as the mean ± SE. Statistical analyses were performed using the statistical package for the social science software program. Student's t test was used to assess the differences between the groups. Statistical significance was considered at P < 0.05. RESULTS: There were no significant changes in body weight and food intake between the groups. However, the supplementation of GC significantly lowered visceral fat accumulation and adipocyte size via inhibition of fatty acid synthase activity and its mRNA expression in visceral adipose tissue, along with enhanced enzymatic activity and gene expression involved in adipose fatty acid β-oxidation. Moreover, GC supplementation resulted in significant reductions in glucose intolerance and the plasma resistin level in the HFD-fed mice. However, we first demonstrated that it increased hepatic collagen accumulation, lipid peroxidation and mRNA levels of genes related to oxidative stress (superoxide dismutase and glutathione peroxidase) and inflammatory responses (tumor necrosis factor-α and monocyte chemoattractant protein-1) as well as plasma alanine transaminase and aspartate transaminase levels, although HFD-induced hepatic steatosis was not altered. CONCLUSION: GC protects against HFD-induced obesity by modulating adipose fatty acid synthesis and β-oxidation but induces hepatic fibrosis, inflammation and oxidative stress.

关键词： Garcinia Cambogia Anti-adiposity Metabolic changes Hepatic collagen accumulation Hepatic inflammation Hepatic oxidative stress

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Retrieval of Outgoing Longwave Radiation from COMS Narrowband Infrared Imagery

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Advances in Atmospheric Sciences 2015年第3期32卷 375-388页

作者： myung-sook PARK Chang-Hoi HO Heeje CHO Yong-Sang choi School of Earth and Environmental Sciences Seoul National UniversitySeoul Korea School of Urban and Environmental Engineering Ulsan National Institute of Science & TechnologyUlsan Korea Computational Science and Technology Seoul National UniversitySeoul Korea Computational Science and Technology Seoul National UniversitySeoul Korea Department of Environmental Science and Engineering Ewha Womans UniversitySeoul Korea

Hourly outgoing longwave radiation （OLR） from the geostationary satellite Communication Oceanography Meteorological Satellite （COMS） has been retrieved since June *** COMS OLR retrieval algorithms are based on regression analyses of radiative transfer simulations for spectral functions of COMS infrared *** study documents the accuracies of OLRs for future climate applications by making an intercomparison of four OLRs from one single-channel algorithm （OLR12.0 using the 12.0 μm channel） and three multiple-channel algorithms （OLR10.8＋12.0 using the 10.8 and 12.0 pm channels; OLR6.7＋10.8 using the 6.7 and 10.8 μm channels; and OLRAll using the 6.7,10.8,and 12.0 μm channels）.The COMS OLRs from these algorithms were validated with direct measurements of OLR from a broadband radiometer of the Clouds and Earth＇s Radiant Energy System （CERES） over the full COMS field of view [roughly （50°S-50°N,70°-170°E）] during April *** results show that the root-mean-square errors of COMS OLRs are 5-7 W m-2,which indicates good agreement with CERES OLR over the vast ***6.7＋10.8 and OLRAll have much smaller errors （～ 6 W m-2） than OLR12.0 and OLR10.8＋12.0 （～ 8 W m-2）.Moreover,the small errors of OLR6.7＋10.8 and OLRAll are systematic and can be readily reduced through additional mean bias correction and/or radiance *** results indicate a noteworthy role of the 6.7 μm water vapor absorption channel in improving the accuracy of the *** dependence of the accuracy of COMS OLRs on various surface,atmospheric,and observational conditions is also discussed.

关键词： outgoing longwave radiation Communication Oceanography and Meteorological Satellite Cloud and Earth's Radiant Energy System

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Environmental influence in the forested area toward human health: incorporating the ecological environment into art psychotherapy

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Journal of Mountain Science 2020年第4期17卷 992-1000页

作者： Ju-hyoung LEE Ji-sook PARK Sunnam choi Department of Forest Resources and Landscape Architecture Yeungnam UniversityGyeongsan 38541South Korea Department of Art Therapy Yeungnam UniversityGyeongsan 38541South Korea

This study on the development of a psychotherapy program based on the relationship between forests and human health focused on actively considering the natural ecological environment. This study categorized and compared an art psychotherapy program that simply moved to an outdoor space and a forest-art therapy program that actively utilized the forest environment as a medium. The characteristics of the natural environment, such as openness, change, and diversity, shortened the amount of time participants took to develop a rapport and open up and played a vital role in recovering mental health. After a bold attempt at integrating forest environment and art psychotherapy by going beyond outdoor art therapy, there were significant results pertaining to improvements in mental disorders in today’s society, including stress vulnerabilities, depression, anxiety, and aggression. The research results verified that the developed forest-art therapy method had greater efficacy in relation to both the Stress Vulnerability-Interpersonal Sensitivity Scale and the Stress Vulnerability-Self-Regulation Scale.

关键词： Forest therapy Human health Healing forest Art therapy Forest environment

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Clinicopathological significance of altered Notch signaling in extrahepatic cholangiocarcinoma and gallbladder carcinoma

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World Journal of Gastroenterology 2011年第35期17卷 4023-4030页

作者： Hyun Ah Yoon myung Hwan Noh Byung Geun Kim Ji Sun Han Jin Seok Jang Seok Ryeol choi Jin sook Jeong Jin Ho Chun Department of Gastroenterology Dong-A University Hospital3-1Dong dae shindongSeo-guBusan 602-715South Korea Department of Pathology Dong-A University Hospital3-1Dong dae shin-dongSeo-guBusan 602-715 South Korea Department of Preventive Medicine Inje University HospitalGae gum 2-dongBusanjinguBusan 614-735 South Korea

AIM:To investigate the role and clinicopathological significance of aberrant expression of Notch receptors and Delta-like ligand-4 (DLL4) in extrahepatic cholangiocarcinoma and gallbladder ***:One hundred and ten patients had surgically resected extrahepatic cholangiocarcinoma (CC) and gallbladder carcinoma specimens examined by immunohistochemistry of available paraffin *** was performed using anti-Notch receptors 1-4 and anti-DLL4 *** scored the immunopositivity of Notch receptors and DLL4 expression by percentage of positive tumor cells with cytoplasmic expression and intensity of *** nuclear localization was ***-logical parameters and survival data were compared with the expression of Notch receptors 1-4 and ***:Notch receptor proteins showed in the cytoplasm with or without nuclear expression in cancer cells,as well as showing weak cytoplasmic expression in non-neoplastic *** semiquantitative evaluation,positive immunostaining of Notch receptor 1 was detected in 96 cases (87.3%),Notch receptor 2 in 97 (88.2%),Notch receptor 3 in 97 (88.2%),Notch receptor 4 in 103 (93.6),and DLL4 in 84 (76.4%).In addition,coex- istent nuclear localization was noted [Notch receptor 1;18 cases (18.8%),Notch receptor 2;40 (41.2%),Notch receptor 3;32 (33.0%),Notch receptor 4;99 (96.1%),DLL4;48 (57.1%)].Notch receptor 1 expression was correlated with advanced tumor,node,metastasis (TNM) stage (P=0.043),Notch receptor 3 with advanced T stage (P=0.017),tendency to express in cases with nodal metastasis (P=0.065) and advanced TNM stage (P=0.052).DLL4 expression tended to be related to less histological differentiation (P=0.095).Coexistent nuclear localization of Notch receptor 3 was related to no nodal metastasis (P=0.027) and Notch receptor 4 with less histological differentiation (P=0.036),while DLL4 tended to be related inversely with T stage (P=0.053).Coexistent nuclear localizatio

关键词： Notch receptors Delta-like ligand-4 Cholangio-carcinoma Gallbladder carcinoma Immunohistochemistry

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Glucose-responsive artificial promoter-mediated insulin gene transfer improves glucose control in diabetic mice

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World Journal of Gastroenterology 2012年第44期18卷 6420-6426页

作者： Jaeseok Han Eung-Hwi Kim Woohyuk choi Hee-sook Jun Department of Microbiology and Infectious Diseases University of Calgary3330 Hospital Drive N.W.CalgaryAlberta T2N 4N1Canada Del E.Webb Neuroscience Aging and Stem Cell Research CenterSanford Burnham Medical Research InstituteLa JollaCA 92037United States Lee Gil Ya Cancer and Diabetes Institute Gachon University7-45 SondodongYeonsu-kuIncheon 406-840South Korea College of Pharmacy Gachon University7-45 Sondo-dongYeonsu-kuIncheon 406-840South Korea

AIM:To investigate the effect of insulin gene therapy using a glucose-responsive synthetic promoter in type 2 diabetic obese ***:We employed a recently developed novel insulin gene therapy strategy using a synthetic promoter that regulates insulin gene expression in the liver in response to blood glucose level *** intravenously administered a recombinant adenovirus expressing furin-cleavable rat insulin under the control of the synthetic promoter(rAd-SP-rINSfur) into diabetic Lepr db/db mice.A recombinant adenovirus expressing β-galactosidase under the cytomegalovirus promoter was used as a control(rAd-CMV-βgal).Blood glucose levels and body weights were monitored for 50 *** and insulin tolerance tests were *** staining was performed to investigate islet morphology and insulin ***:Administration of rAd-SP-rINSfur lowered blood glucose levels and normoglycemia was maintained for 50 d,whereas the rAd-CMV-βgal control virus-injected mice remained *** tolerance tests showed that rAd-SP-rINSfur-treated mice cleared exogenous glucose from the blood more efficiently than control virus-injected mice at 4 wk [area under the curve(AUC):21 508.80 ± 2248.18 vs 62 640.00 ± 5014.28,P < 0.01] and at 6 wk(AUC:29 956.60 ± 1757.33 vs 60 016.60 ± 3794.47,P < 0.01).In addition,insulin sensitivity was also significantly improved in mice treated with rAd-SP-rINSfur compared with rAd-CMV-βgal-treated mice(AUC:9150.17 ± 1007.78 vs 11 994.20 ± 474.40,P < 0.05).The islets from rAd-SP-rINSfur-injected mice appeared to be smaller and to contain a higher concentration of insulin than those from rAd-CMV-βgal-injected ***:Based on these results,we suggest that insulin gene therapy might be one therapeutic option for remission of type 2 diabetes.

关键词： Insulin gene therapy Synthetic promoter Glucose-responsive element Liver-specific promoter Type 2 diabetes

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Sexual dimorphism and sex-differential migration of Little Buntings(Emberiza pusilla)at an East Asian stopover site

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Avian Research 2022年第1期13卷 87-93页

作者： sook-Young Cho Hyun-Young Nam Se-Young Park Chang-Yong choi Bird Research Center Korea National Park Research InstituteJeonnam58863Republic of Korea Division of Zoology Honam National Institute of Biological ResourcesMokpo58762Republic of Korea School of Biological Sciences College of Natural SciencesSeoul National UniversitySeoul08826Republic of Korea Department of Agriculture Forestry and BioresourcesCollege of Agriculture and Life SciencesSeoul National UniversitySeoul08826Republic of Korea

Sex differences in morphology provide key information for understanding a species'morphological adaptations in relation to the evolution of sexual *** migratory birds,morphological traits have adapted to long-distance travel,and sexual dimorphism is typically related to sex-differential migration *** Buntings(Emberiza pusilla)have one of the longest migrations and are the least dichromatic species among the Emberiza *** this study,we measured sexual size dimorphism and sexual dichromatism of Little Buntings in relation to the spring arrival dates at a stopover site in *** length was the most important predictor for identifying sex;the wings of males were longer than those of *** also had a significantly stronger chestnut color of the head feathers than females,but this color difference was more prominent in the spring than in the *** arrived earlier than females by four *** dates correlated with both size and color,but unlike other bunting species previously studied in the same area,there was no clear sex-differential trend in the relationship between arrival date and morphological *** differences in the degree of sexual dichromatism suggest that chestnut plumage coloration can be used as a social or sexual signal of males in the breeding *** correlation of size and color to early arrival regardless of sex may indicate that a preference for assortative mating exists or that a sex-differential migration strategy is not clearly defined in the early stages of northward *** findings on the sexual dimorphism of Little Buntings provide insight into the evolution of the sex-differential migration of buntings in the East Asian Flyway.

关键词： Digital photography Emberiza pusilla Little Bunting Protandrous migration Sexual dichromatism Sexual dimorphism

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The secretory products of Trichomonas vaginalis decrease fertilizing capacity of mice sperm in vitro

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Asian Journal of Andrology 2015年第2期17卷 319-323,I0012页

作者： Jaesook Roh Young-Su Lim Min-Young Seo Yuri choi Jae-sook Ryu Department of Anatomy and Cell Biology Laboratory of Reproductive Endocrinology College of Medicine Hanyang University Seoul Korea Department of Anesthesiology and Pain Medicine St. Mary's Hospital Catholic University Incheon Korea Department of Environmental Biology and Medical Parasitology College of Medicine Hanyang University Seoul Korea.

Trichomonas vaginalis infection is one of the most prevalent sexually transmitted infections in humans and is now recognized as an important cause of infertility in men. There is little information about the effect of extracellular polymeric substances （EPS） from T. vaginalis on sperm, but previous reports do not provide a conclusive description of the functional integrity of the sperm. To investigate the impact of EPS on the fertilizing capacity of sperm, we assessed sperm motility, acrosomal status, hypo-osmotic swelling, and in vitro fertilization rate after incubating the sperm with EPS in vitro using mice. The incubation of sperm with EPS significantly decreased sperm motility, viability, and functional integrity in a concentration and time-dependent manner. These effects on sperm quality also resulted in a decreased fertilization rate in vitro. This is the first report that demonstrates the direct negative impact of the EPS of T. vaginalis on the fertilization rate of sperm in vitro. However, further study should be performed using human sperm to determine if EPS has similar negative impact on human sperm fertilizing capacity in vitro.

关键词： extracellular polymeric substances fertilization sperm Trichomonas vaginalis

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Interleukin-24 is correlated with differentiation and lymph node numbers in rectal cancer

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World Journal of Gastroenterology 2011年第9期17卷 1167-1173页

作者： Youngmin choi Mee-sook Roh Young-Seoub Hong Hyung-Sik Lee Won-Joo Hur Department of Radiation Oncology Dong-A University School of Medicine Department of Pathology Dong-A University School of Medicine Department of Preventive Medicine Dong-A University School of Medicine

AIM:To assess the significance of interleukin(IL)-24 and vascular endothelial growth factor(VEGF)expression in lymph-node-positive rectal cancer. METHODS:Between 1998 and 2005,90 rectal adenocarcinoma patients with lymph node involvement were *** patients received radical surgery and postoperative pelvic chemoradiotherapy of 50.4-54.0 *** of 5-fluorouracil and leucovorin or levamisole was given intravenously during the first and last week of radiotherapy,and then monthly for about 6 *** of IL-24 and VEGF was evaluated by immunohistochemical staining of surgical specimens, and their relations with patient characteristics and survival were *** median follow-up of surviving patients was 73 mo(range:52-122 mo). RESULTS:IL-24 expression was found in 81 out of 90 patients;31 showed weak intensity and 50 showedstrong *** expression was found in 64 out of 90 *** and weak intensities of IL-24 expression were classified as negative expression for ***-24 expression was significantly reduced in poorly differentiated tumors in comparison with well or moderately differentiated tumors(P=0.004),N2b to earlier N stages(P=0.016),and stageⅢc to stageⅢ a orⅢb(P=0.028).The number of involved lymph nodes was also significantly reduced in IL-24-positive patients in comparison with IL-24-negative ones. There was no correlation between VEGF expression and patient *** of IL-24 and VEGF was not correlated with survival,but N stage and stages were significantly correlated with survival. CONCLUSION:IL-24 expression was significantly correlated with histological differentiation,and inversely correlated with the degree of lymph node involvement in stageⅢrectal cancer.

关键词： Interleukin-24 Rectal cancer Lymph node Histological differentiation Vascular endothelial growth factor

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Prognostic role of plasma level of angiopoietin-1,angiopoietin-2,and vascular endothelial growth factor in hepatocellular carcinoma

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World Journal of Gastroenterology 2021年第27期27卷 4453-4467页

作者： Gwang Hyeon choi Eun Sun Jang Jin-Wook Kim sook-Hyang Jeong Department of Internal Medicine Seoul National University Bundang HospitalSeoul National University College of MedicineSeongnam 13620South Korea

BACKGROUND Most hepatocellular carcinomas(HCCs)are hypervascular,with characteristic features of hepatic arterial supply to the *** factors involved in tumor angiogenesis include angiopoietin-1(Ang-1),angiopoietin-2(Ang-2),and vascular endothelial growth factor(VEGF).AIM To investigate the profiles of plasma levels of angiogenesis markers in patients with HCC and evaluate their roles in predicting overall survival(OS)and progression-free survival(PFS).METHODS Plasma samples from 240 prospectively enrolled HCC patients in the very early to advanced stages were used to measure the levels of Ang-1,Ang-2,and *** associations with clinical characteristics,OS,and PFS were *** The median plasma levels of Ang-1,Ang-2,and VEGF were 3216 pg/mL,1684 pg/mL,and 26.5 pg/mL,*** plasma level of Ang-2 showed a significant increase from early stage[Barcelona clinic liver cancer(BCLC)A]to intermediate(BCLC B)and advanced stage HCC(BCLC C/D),whereas Ang-1,VEGF,and alpha-fetoprotein(AFP)levels in the plasma did not show any such *** analysis,propensity score-matched analysis,and timedependent receiver operating curve analysis revealed that Ang-2 levels had the highest predictive power for OS and *** Ang-1 nor VEGF was significantly associated with OS or *** neutrophil-to-lymphocyte ratio was an independent factor for OS and *** The plasma levels of Ang-2 correlated with liver function,tumor stage,and tumor invasiveness,showing better performance in predicting OS and PFS than AFP,Ang-1,or VEGF.

关键词： Hepatocellular carcinoma Angiogenesis Biomarker Prognosis Survival

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