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Controlling hypoxia-inducible factor-2α is critical for maintaining bone homeostasis in mice

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Bone Research 2019年第2期7卷 210-223页

作者： Sun Young Lee Ka Hyon Park hyung-Gu Yu Eunbyul Kook Won-hyun Song Gyuseok Lee Jeong-Tae Koh Hong-In Shin Je-Yong Choi yun hyun Huh Je-Hwang Ryu Department of Pharmacology and Dental Therapeutics School of DentistryChonnam National UniversityGwangju 61186Korea Research Center for Biomineralization Disorders School of DentistryChonnam National UniversityGwangju 61186Korea Department of Oral Pathology and IHBR School of DentistryKyungpook National UniversityDaegu 41940Korea Department of Biochemistry and Cell Biology BK21 Plus KNU Biomedical Convergence ProgramSkeletal Diseases Analysis CenterKorea Mouse Phenotyping Center (KMPC)School of MedicineKyungpook National UniversityDaegu 41944Korea School of Life Sciences Gwangju Institute of Science and TechnologyGwangju 61005Korea

Pathological bone loss is caused by an imbalance between bone formation and *** bone microenvironments are hypoxic,and hypoxia-inducible factor (HIF) is known to play notable roles in bone ***,the relevant functions of HIF-2α are not well ***,we have shown that HIF-2α deficiency in mice enhances bone mass through its effects on the differentiation of osteoblasts and *** vitro analyses revealed that HIF-2α inhibits osteoblast differentiation by targeting Twist2 and stimulates RANKL-induced osteoclastogenesis via regulation of *** addition,HIF-2α appears to contribute to the crosstalk between osteoblasts and osteoclasts by directly targeting RANKL in osteoprogenitor *** performed with osteoblast- and osteoclast-specific conditional knockout mice supported a role of HIF-2α in this ***-2α deficiency alleviated ovariectomy-induced bone loss in mice,and specific inhibition of HIF-2α with ZINC04179524 significantly blocked RANKLmediated ***,our results suggest that HIF-2α functions as a catabolic regulator in bone remodeling,which is critical for the maintenance of bone homeostasis.

关键词： is RANKL its via

Insulation Type Effect on the Direct Shear Behavior of Concrete Sandwich Panel(CSP)with Non-Shear Connectors

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Insulation Type Effect on the Direct Shear Behavior of Concr...

Hepatoprotective effect of manual acupuncture at acupoint GB34 against CCl_4-induced chronic liver damage in rats

2012 International Conference of Health,Structure,Material and Environment(HSME 2012)

作者： Tae-Sik Oh seok-Joon Jang Kang-Min Lee hyun-Do yun Kyeryong Construction Company Dept.of Architectural Engineering Chungnam National University

Precast concrete sandwich panels(PCSP)are often used as exterior cladding of residential buildings due to thermal *** systems consist of two precast reinforced concrete walls separated by a layer of insulation and connected with connectors which penetrate the insulation layer and are anchored at two precast *** paper provides the pull-out test results of concrete sandwich panel(CSP)with non-shear *** variables in this study were the casting direction of reinforced concrete walls and types of *** results indicated that the types of insulations and casting direction have a significant effect on the bond strength between concrete wall and *** effect of insulation type is notable for CSP cast horizontally concrete walls.

关键词： Precast Concrete Sandwich Panel(PCSP) Shear Behavior Insulation

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World Journal of Gastroenterology 2006年第14期12卷 2245-2249页

作者： yun-Kyoung Yim hyun Lee Kwon-Eui Hong Young-Il Kim Byung-Ryul Lee Tae-Han Kim Ji-Young Yi Department of Meridian & Acupoint College of Oriental Medicine Daejeon University12407 96-3Yongun-dongDong-guDaejeon 300-716South Korea Department of Acupuncture & Moxibustion Dunsan Oriental Hospital of Daejeon University 1136 Dunsan-dongSeo-guDaejeon 302-122South Korea

AIM： To investigate the hepatoprotective effect of manual acupuncture at Yanglingquan （GB34） on CCl4-induced chronic liver damage in rats. METHODS： Rats were injected intraperitoneally with CCh （1 mL/kg） and treated with manual acupuncture using reinforcing manipulation techniques at left GB34 （Yanglingquan） 3 times a week for 10 wk. A nonacupoint in left gluteal area was selected as a sham point. To estimate the hepatoprotective effect of manual acupuncture at GB34, measurement of liver index, biochemical assays including serum ALT, AST, ALP and total cholesterol, histological analysis and blood cell counts were conducted. RESULTS： Manual acupuncture at GB34 reduced the liver index, serum ALT, AST, ALP and total cholesterol levels as compared with the control group and the sham acupuncture group. It also increased and normalized the populations of WBC and lymphocytes. CONCLUSION： Manual acupuncture with reinforcing manipulation techniques at left GB34 reduces liver toxicity, protects liver function and liver tissue, and normalizes immune activity in CCh-intoxicated rats.

关键词： Manual acupuncture Yanglingquan (GB34) CCl4-induced liver damage Hepatoprotective effect

Is a split-dose regimen of 2 L polyethylene glycol plus ascorbic acid tolerable for colonoscopy in an early morning visit to a comprehensive medical check-up?

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World Journal of Gastroenterology 2017年第6期23卷 1030-1037页

作者： Ji Yeon Seo Changhyun Lee Eun Hyo Jin Mi hyun yun Joo hyun Lim Hae Yeon Kang Jong In Yang Su Jin Chung Sun Young Yang Joo Sung Kim Department of Internal Medicine and Healthcare Research Institute Healthcare System Gangnam CenterSeoul National University Hospital Department of Nursing Healthcare System Gangnam CenterSeoul National University Hospital

To evaluate the effectiveness and tolerability of a split-dose 2 L polyethylene glycol (PEG)/ascorbic acid (AA) regimen for healthy examinees who visited for comprehensive medical check-up in the early *** February 2015 to March 2015, examinees of average risk who were scheduled for a colonoscopy in the morning were retrospectively *** 189 examinees were divided into split-dose and non-split-dose groups. The adequacy of bowel preparation for the split-dose group vs the non-split-dose group was 96.8% vs 85.2%, respectively, P < 0.001, and the compliance of the last meal restriction was 74.6% vs 58.2%, respectively, P < 0.001. The sleep disturbance (P < 0.001) was more prevalent in the split-dose group, however the willingness to repeat the same preparation method (P = 0.243) was not different in both groups. The split-dose regimen was the most important factor influencing adequate bowel preparation in multivariate analysis (HR = 10.89, 95%CI: 6.53-18.17, P < 0.001).CONCLUSIONA split-dose regimen of 2 L PEG/AA for an early morning colonoscopy was more effective and showed better compliance for diet restriction without any difference in satisfaction and discomfort. Introducing a split-dose regimen of 2 L PEG/AA to morning colonoscopy examinees is effective and tolerable in a comprehensive medical check-up setting.

关键词： Compliance Early morning colonoscopy Effectiveness Split-dose regimen Tolerability

Ethanol extract of Oenanthe javanica increases cell proliferation and neuroblast differentiation in the adolescent rat dentate gyrus

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Neural Regeneration Research 2015年第2期10卷 271-276页

作者： Bai Hui Chen Joon Ha Park Jeong Hwi Cho In Hye Kim Bich Na Shin Ji Hyeon Ahn seok Joon Hwang Bing Chun Yan hyun Jin Tae Jae Chul Lee Eun Joo Bae yun Lyul Lee Jong Dai Kim Moo-Ho Won Il Jun Kang Department of Physiology College of Medicine and Institute of Neurodegeneration and Neuroregeneration Hallym University Department of Neurobiology School of Medicine Kangwon National University Department of Food Science and Biotechnology College of Agriculture and Life Sciences Kangwon National University Department of Integrative Traditional & Western Medicine Medical College Yangzhou University Department of Biomedical Science and Research Institute for Bioscience and Biotechnology Hallym University Department of Pediatrics Chuncheon Sacred Heart Hospital College of Medicine Hallym University Department of Food Science and Nutrition Hallym University

Oenanthe javanica is an aquatic perennial herb that belongs to theOenanthe genus in Apiaceae family, and it displays well-known medicinal properties such as protective effects against glu-tamate-induced neurotoxicity. However, few studies regarding effects ofOenanthe javanica on neurogenesis in the brain have been reported. In this study, we examined the effects of a normal diet and a diet containing ethanol extract ofOenanthe javanica on cell proliferation and neu-roblast differentiation in the subgranular zone of the hippocampal dentate gyrus of adolescent rats using Ki-67 （an endogenous marker for cell proliferation） and doublecortin （a marker for neuroblast）. Our results showed thatOenanthe javanica extract signiifcantly increased the number of Ki-67-immunoreactive cells and doublecortin-immunoreactive neuroblasts in the subgranular zone of the dentate gyrus in the adolescent rats. In addition, the immunoreactivity of brain-derived neurotrophic factor was signiifcantly increased in the dentate gyrus of the Oenanthe javanica extract-treated group compared with the control group. However, we did not ifnd that vascular endothelial growth factor expression was increased in theOenanthe javanica extract-treated group compared with the control group. These results indicate thatOenanthe javanica extract improves cell proliferation and neuroblast differentiation by increasing brain-de-rived neurotrophic factor immunoreactivity in the rat dentate gyrus.

关键词： nerve regeneration Oenanthe javanica extract cell proliferation neuroblast differentiation brain-derived neurotrophic factor vascular endothelial growth factor rat neural regeneration

Atypical onset of bicalutamide-induced liver injury

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World Journal of Gastroenterology 2016年第15期22卷 4062-4065页

作者： Gee Young yun seok hyun Kim seok Won Kim Jong seok Joo Ju seok Kim Eaum seok Lee Byung seok Lee Sun Hyoung Kang Hee seok Moon Jae Kyu Sung Heon Young Lee Kyung Hee Kim Department of Internal Medicine Chungnam National University School of Medicine Chungnam National University Hospital Departments of Pathology Chungnam National University School of Medicine Chungnam National University Hospital

Anti-androgen therapy is the leading treatment for advanced prostate cancer and is commonly used for neoadjuvant or adjuvant treatment. Bicalutamide is a non-steroidal anti-androgen, used during the initiation of androgen deprivation therapy along with a luteinizing hormone-releasing hormone agonist to reduce the symptoms of tumor-related flares in patients with advanced prostate cancer. As side effects, bicalutamide can cause fatigue, gynecomastia, and decreased libido through competitive androgen receptor blockade. Additionally, although not as common, drug-induced liver injury has also been reported. Herein, we report a case of hepatotoxicity secondary to bicalutamide use. Typically, bicalutamideinduced hepatotoxicity develops after a few days; however, in this case, hepatic injury occurred 5 mo after treatment initiation. Based on this rare case of delayed liver injury, we recommend careful monitoring of liver function throughout bicalutamide treatment for prostate cancer.

关键词： Bicalutamide Drug-induced liver injury Prostate neoplasm

Effect of Cristobalite and Quartz on the Properties of Gypsum Bonded Investment

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Journal of Materials Science & Technology 2008年第1期24卷 143-144页

作者： yun-Jong Kim Sang-Bae Kim hyun-Hye Park Myeong-Deok Seo Byoung-Cheon Lee Man-So Han Taik-Nam Kim Sung-Baek Cho Korea Institute of Geoscience and Mineral Resources (KIGAM) Gajeong-dong 30 Yuseong-kuDaejeon 305-350Korea Department of Materials Engineering Graduate School Paichai UniversityDaejeon 302-735Korea Dept.of Dental Laboratory Technology Daejeon Health Science College Korea

Generally the gold investment material consists of cristobalite,quartz and *** physical property of gold investment materials depends on its thermal expansion coefficients,compressive strength,and particles size *** the thermal expansion coefficient of cristobalite and quartz are 2.6×10^-6/℃and 2.32×10^-6/℃respectively,the composition ratio of each components influence the thermal and physical properties of gold investment *** the clinical applications,it is necessary to improve the properties of gold investment materials such as homogeneous size distribution and thermal expansion *** the present study,effect of inorganic fillers such as cristobalite and quartz on gold alloy investment was investigated to improve the properties of *** compressive strength and thermal expansion coefficients of the specimens were *** results showed that cristobalite and quartz were homogeneously distributed by milling. The optimum compressive strength was obtained at the ratio of 42：22 cristobalite and quartz,respectively.

关键词： Investment Cristobalite Quartz Thermal expansion coefficient Compressivestrength

The inhibition effect of Chlorpromazine against the β-lactam resistance of MRSA

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Asian Pacific Journal of Tropical Medicine 2016年第6期9卷 526-530页

作者： Ryong Kong Ok-Hwa Kang yun-Soo Seo Su-hyun Mun Tian Zhou Dong-Won Shin Dong-Yeul Kwon BK21 Plus Team Professional Graduate School of Oriental Medicine Wonkwang University Department of Oriental Pharmacy College of Pharmacy Wonkwang Oriental Medicines Research Institute Institute of Biotechnology Wonkwang University Department of Oriental Medicine Resources College of Bio Industry Science Sunchon National University

Objective:To investigate the gene related to β-lactam resistance and to confirm the mechanism about a synergy effect between CPZ and β-lactam ***:To measure antibacterial activity,we performed a minimum inhibitory concentration(MIC) and synergy *** electron microscopy(TEM) was used in morphological *** analyze gene expression,we conducted reverse transcriptase polymerase chain reaction(PCR).Results:We confirmed a synergy effect between CPZ and β-lactam ***,we observed that CPZ affect the cell envelope of MRS A by using *** the gene level,CPZ reduced the expression of resistance ***:Through this result,we hypothesize that a decrease of resistance factor expressions was caused by CPZ because it disrupts the activity of a sensor protein located in the cell membrane.

关键词： Chlorpromazine PBP2a β-lactamase mecA blaZ MRSA

A case of colon perforation due to enteropathy-associated T-cell lymphoma

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World Journal of Gastroenterology 2013年第11期19卷 1841-1844页

作者： Jun Bong Kim Seong Hwan Kim Young Kwan Cho Sang Bong Ahn yun Ju Jo Young Sook Park Ji hyun Lee Dong Hee Kim Hojung Lee yun Young Jung Department of Internal Medicine Eulji Medical CenterEulji UniversitySeoul 139-711South Korea Department of Surgery Eulji HospitalEulji Medical CenterSeoul 139-711South Korea Department of Pathology Eulji HospitalEulji Medical CenterSeoul 139-711South Korea Department of Radiology Eulji HospitalEulji Medical CenterSeoul 139-711South Korea

Enteropathy-associated T-cell lymphoma (EATL) is an extremely rare disease, which is often related to gluten-sensitive enteropathy. It is an uncommon intestinal lymphoma with very poor prognosis and high mortality rate. In the absence of specific symptoms or radiological findings, it is difficult to diagnose early. Major complications of EATL have been known as intestinal perforation or obstruction, and only 5 cases of EATL are reported in South Korea. In this study, we report a case of 71-year-old male with symptoms of diarrhea, which later it progressed into cancer perforation of the colon. The initial colonoscopic findings were normal and computed tomography scan demonstrated a segmental wall thickening of the distal ascending colon with nonspecific multiple small lymphnodes, along the ileocolic vessels, but no signs of mass or obstruction. The histologic findings of resected specimen confirmed EATL type II. Patient expired two weeks after the operation. Therefore, we emphasize the need of random biopsy in the presence of normal mucosa appearance on colonoscopy for the early diagnosis of EATL.

关键词： Enteropathy-associated T-cell lymphoma type II Intestinal perforation Gastrointestinal lymphoma Celiac disease