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- 저자 : Jian Xin Zhai (검색결과 5 건)
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Jun Wei Wu,Yu Rong Xing,Yi Bo Wen,Tian Fang Li,Quan De Feng,Xiao Ping Shang,Yun Long Li,Jin Jin Feng,Xin Xin Wang,Rong Qun Zhai,Xiang Fei He,Tao Chen,Xin Jian Liu,Jian Guo Wen 대한배뇨장애요실금학회 2016 International Neurourology Journal Vol.20 No.2
Purpose: To investigate the prevalence of spina bifida occulta (SBO) and its relationship with the presence of overactive bladder (OAB) in middle-aged and elderly people in China. Methods: A cross-sectional community-based survey was carried out at 7 communities in Zhengzhou City, China from December 15, 2013 to June 10, 2014, where residents aged over 40 years were randomly selected to participate. All of the participants underwent lumbosacral radiographic analysis and relevant laboratory tests. A questionnaire including basic information, past medical history and present illness, and the OAB symptom score was filled out by all participants. Chi-square tests and logistic regression were used for data analysis with a P-value of <0.05 denoting statistical significance. Results: A total of 1,061 subjects were qualified for the final statistical analysis (58.8±11.7 years; male, 471 [44.4%]; female, 590 [55.6%]). The overall prevalence of SBO was 15.1% (160 of 1,061): 18.3% (86 of 471) in men and 12.5% (74 of 590) in women. Among these subjects, 13.7% (145 of 1,061) had OAB: 13.2% (62 of 471) in men and 14.1% (83 of 590) in women. The results of logistic regression showed that age, SBO, history of cerebral infarction (HCI), and constipation were risk factors for OAB (P<0.05), while sex, history of childhood enuresis (HCE), body mass index (BMI), and diabetes mellitus (DM) were not (P>0.05). In men, age, SBO, and constipation were risk factors for OAB (P<0.05), while HCE, BMI, DM, HCI, and benign prostate hyperplasia were not (P>0.05). In women, age, SBO, and HCI were risk factors for OAB (P<0.05), while HCE, BMI, DM, vaginal delivery, and constipation were not (P>0.05). Conclusions: The prevalence of SBO is high and it is related to OAB in middle-aged and elderly people in China.
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Jian-yang Xue,Linlin Ma,Zhanjing Wu,Lei Zhai,Xin Zhang 국제구조공학회 2018 Steel and Composite Structures, An International J Vol.28 No.5
This paper presents experiment and bearing capacity analyses of steel dual-lintel column (SDC) joints in Chinese traditional style buildings. Two SDC interior joints and two SDC exterior joints, which consisted of dual box-section lintels, circular column and square column, were designed and tested under low cyclic loading. The force transferring mechanisms at the panel zone of SDC joints were proposed. And also, the load-strain curves at the panel zone, failure modes, hysteretic loops and skeleton curves of the joints were analyzed. It is shown that the typical failure modes of the joints are shear buckling at bottom panel zone, bending failure at middle panel zone, welds fracturing at the panel zone, and tension failure of base metal in the heat-affected zone of the joints. The ultimate bearing capacity of SDC joints appears to decrease with the increment of axial compression ratio. However, the bearing capacities of exterior joints are lower than those of interior joints at the same axial compression ratio. In order to predict the formulas of the bending capacity at the middle panel zone and the shear capacity at the bottom panel zone, the calculation model and the stress state of the element at the panel zone of SDC joints were studied. As the calculated values showed good agreements with the test results, the proposed formulas can be reliably applied to the analysis and design of SDC joints in Chinese traditional style buildings.
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Yan-Hong Wang,Jiao Dong,Jian-Xin Zhang,Jing Zhai,Bin Ge 대한약학회 2016 Archives of Pharmacal Research Vol.39 No.9
The mimic of manganese superoxide dismutase (MnSODm) has been synthesized and reported to have antiinflammatory properties. However, whether MnSODm has anti-inflammatory effects on colitis and any underlying mechanisms are poorly understood. This study was to investigate therapeutic effects and mechanism of MnSODm on 2,4,6-trinitrobenzenesulfonic acid (TNBS) induced colitis model in rats. Rats were intragastrically administered MnSODm (10, 20, and 40 mg/kg) per day for 7 days after colitis was induced by TNBS. After treated with MnSODm, the colonic macroscopic and microscopic damage scores and colonic weight/length ratios were significantly decreased compared with colitis model group. Myeloperoxidase (MPO) activity, malonyldialdehyde (MDA), tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, IL-6, and IL-8 levels in colon tissues were also significantly decreased in MnSODm treatment groups. However, superoxide dismutase (SOD) activity significantly increased and phosphorylated inhibitory kappa B-alpha (IκBα), inhibitor kappa B kinase (IKKα/β), and nuclear factor-kappa Bp65 (NF-κBp65) as well as Toll-like receptor 4 (TLR4) and myeloid differentiation actor 88 (MyD88) in the colonic mucosa were significantly inhibited by MnSODm treatment. Thus, MnSODm was protective against colitis via antioxidant activity and by inhibiting inflammatory mediators by downregulating TLR4/MyD88/NF-κB signaling pathways. These data suggest a potential therapeutic effect of MnSODm in colitis.
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Anti-HIV-1 Activity of Lignans from the Fruits of Schisandra rubriflora
Wei-Lie Xiao,Rui-Rui Wang,Wei Zhao,Ren-Rong Tian,Shan-Zhai Shang,Liu-Meng Yang,Jian-Hong Yang,Jian-Xin Pu,Yong-Tang Zheng,Han-Dong Sun 대한약학회 2010 Archives of Pharmacal Research Vol.33 No.5
This study investigated the 70% aqueous acetone extract of the fruits of Schisandra rubriflora which led to the isolation of eight lignans, including a new isolate, rubrisandrin C (1), and seven known lignans (2-8) . The structure of 1 was established by extensive 1D and 2D NMR spectroscopy and its absolute stereochemistry was determined by CD spectrum. Compounds 1-5 and 7-8 were evaluated for their anti-HIV-1 activity that showed inhibitory activity on HIV-1IIIB induced syncytium formation with EC50 values in the range of 2.26~20.4 μg/mL. Compounds 1 and 7 exerted their obvious protection of HIV-1IIIB inducted MT-4 host cells lytic effects with a selectivity index of 15.4 and 24.6, respectively.
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