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      • KCI등재

        Identification of Polymorphisms in Thymic Stromal Lymphopoietin (TSLP) Gene and Their Association with Allergic Rhinitis

        Mei Hua Zhang,Yong Shin Kim,Eun Heui Jin,Ki Mo Kim,Jae Hoon Lee,Chun Shi Li,Qing Gao Zhang,Ki Jung Yun,Soo Cheon Chae,Hun Taeg Chung 한국유전학회 2008 Genes & Genomics Vol.30 No.5

        Dendritic cell (DC) activator, thymic stromal lymphopoietin (TSLP) induces DCs to produce Th2-attracting chemokines, causing differentiation of CD4+ and CD8+ T cells into effector cells. The differentiated cells are characterized by a typical pro-allergic phenotype. In this study, we identified four single nucleotide polymorphisms (SNPs) and one variation site (g.-305delT) from the results of scanned human TSLP gene. The SNPs are as following: g.-1914A>G and g.-847C>T in promoter, g.-82C>T in 5` UTR and g.1117C>T in intron 2. We also evaluated the association of genotype and allele frequencies of these SNPs between non-allergic rhinitis controls and allergic rhinitis patients. We further investigated possible correlations between each genotype with serum total IgE levels and peripheral blood eosinophil counts in allergic rhinitis patients. The frequencies of haplotype constructed by these SNPs between these two groups were also compared. Our results demonstrate the two SNPs (g.-1914A>G and g.-847C>T) were associated with susceptibility of allergic rhinitis (P=0.006 and P=0.015 respectively), however, serum total IgE levels were not significantly related with the SNPs.

      • KCI등재

        Associations of HSP90AA2 gene polymorphisms with disease susceptibility, glucocorticoids efficacy and health-related quality of life in Chinese systemic lupus erythematosus patients

        Man Zhang,Su‑Su Li,Qiao‑Mei Xie,Jian‑Hua Xu,Xiu‑Xiu Sun,Fa‑Ming Pan,Sheng‑Qian Xu,Sheng‑Xiu Liu,Jin‑Hui Tao,Shuang Liu,Jing Cai,Pei‑Ling Chen,Long Qian,Chun‑Huai Wang,ChunMei Liang,Hai‑Liang Huang,Ha 한국유전학회 2018 Genes & Genomics Vol.40 No.10

        Although the current glucocorticoids (GCs) treatment for systemic lupus erythematosus (SLE) is effective to a certain extent, the difference in therapeutic effect between patients is still a widespread problem. Some patients can have repeated attacks that greatly diminish their quality of life. This study was conducted to investigate the relationship between HSP90AA2 polymorphisms and disease susceptibility, GCs efficacy and health-related quality of life (HRQoL) in Chinese SLE patients. A case–control study was performed in 470 SLE patients and 470 normal controls. Then, 444 patients in the case group were followed up for 12 weeks to observe efficacy of GCs and improvement of HRQoL. Two single nucleotide polymorphisms (SNPs) of HSP90AA2 were selected for genotyping: rs1826330 and rs6484340. HRQoL was assessed using the SF-36 questionnaire. The minor T allele of rs1826330 and the TT haplotype formed by rs1826330 and rs6484340 showed associations with decreased SLE risk (T allele: PBH = 0.022; TT haplotype: PBH = 0.033). A significant association between rs6484340 and improvement of HRQoL was revealed in the follow-up study. Five subscales of SF-36 were appeared to be influenced by rs6484340: total score of SF-36 (additive model: PBH = 0.026), physical function (additive model: PBH = 0.026), rolephysical (recessive model: PBH = 0.041), mental health (dominant model: PBH = 0.047), and physical component summary (additive model: PBH = 0.026). No statistical significance was found between HSP90AA2 gene polymorphisms and GCs efficacy. These results revealed a genetic association between HSP90AA2 and SLE. Remarkably, HSP90AA2 has an impact on the improvement of HRQoL in Chinese population with SLE.

      • KCI등재

        Simultaneous optimization of multiparameters on a subcritical organic Rankine cycle system for low-grade waste heat recovery

        Li Zhang,Chun-Chun Li,You-Rong Li,Chun-Mei Wu 대한기계학회 2019 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.33 No.1

        This study aims to improve the thermo-economic performance of the subcritical organic Rankine cycle (ORC). Accordingly, an economical evaluation and the simultaneous multiparametric optimization on the subcritical ORC system for recovering low-grade waste heat of flue gas were conducted using electricity production cost (EPC) as the evaluation indicator. Results show that the optimum evaporating and condensing temperatures are mainly influenced by the inlet temperatures of flue gas and cooling fluid, respectively. High critical temperature of working fluids indicates high thermal-economic performance of the ORC system for 19 kinds of selected working fluids. Furthermore, the optimum pinch point temperature difference of evaporator decreases and that of condenser increases with the variation in the critical temperature of working fluids, but the optimum condensing temperature is unchanged. On the basis of a large number of calculation data, the correlations among the optimum cycle and external operating parameters of the subcritical ORC are proposed. These correlations can guide the engineering design of the subcritical ORC system.

      • KCI등재

        이광수의 '무정'과 장한수의 '제소인연' 비교연구

        장춘매(Zhang, Chun-Mei) 한국문학회 2010 韓國文學論叢 Vol.56 No.-

        20세기 초에 유가사상에 젖어 있었던 중한 양국은 서구문화의 영향으로 근대화로 진입하기 시작했다. 중한 양국 근대과도기의 연애와 혼인에 관한 인식을 밝히기 위해 본고는 한국 작가 이광수의 <무정>과 중국 작가 장한수의 <제소인연>을 비교했다. 두 작품은 모두 당대 사람들에게 익숙하지 않은 자유연애 이야기를 서술하고 있다. 본고는 이 두 작품을 주제, 인물, 서사법 등 여러 측면에서 비교하여 그 공통점과 차이점을 찾아낼 뿐만 아니라 작가 이광수와 장한수가 자유연애에 대해 주장하는 관점도 규명했다. 그리고 주제와 문체의 차원에서 두 작품이 전통문학을 계승하면서 개혁해 나아가는 측면도 고찰하였다. As the twentieth century began, both Korea and China featured with the traditional Confucianism started towards modern societies thanks to the influence of western culture. To expound the general viewpoints of the two countries on marriage at the transitional time, the paper is intended to make a comparative study of two works--Mu Jeong by Korean writer Lee Kwang-soo and Ti xiao yin yuan by Chinese writer Zhang Hen-shui. The two works both tell stories about people’s freedom to choose their spouses--a new concept unfamiliar to peoples at that time in both countries. The paper is designed to seek out the differences and similarities between the two novels from the aspects of themes, characterizations, and narrative methods and is an attempt to make a study of the propositions of both Lee Kwang-soo and Zhang Hen-shui on the freedom to choose one's spouse. Besides, the paper is also an effort to study what the two writers inherit from their respective traditional literatures and what is invented by the two.

      • KCI등재

        Diversity of Thermophilic Fungi in Tengchong Rehai National Park Revealed by ITS Nucleotide Sequence Analyses

        Wen-Zheng Pan,Xiao-Wei Huang,Kang-Bi Wei,Chun-Mei Zhang,Dong-Mei Yang,Jun-Mei Ding,Ke-Qin Zhang 한국미생물학회 2010 The journal of microbiology Vol.48 No.2

        The geothermal sites near neutral and alkalescent thermal springs in Tengchong Rehai National Park were examined through cultivation-dependent approach to determine the diversity of thermophilic fungi in these environments. Here, we collected soils samples in this area, plated on agar media conducive for fungal growth, obtained pure cultures, and then employed the method of internal transcribed spacer (ITS)sequencing combined with morphological analysis for identification of thermophilic fungi to the species level. In total, 102 strains were isolated and identified as Rhizomucor miehei, Chaetomium sp., Talaromyces thermophilus, Talaromyces byssochlamydoides, Thermoascus aurantiacus Miehe var. levisporus, Thermomyces lanuginosus, Scytalidium thermophilum, Malbranchea flava, Myceliophthora sp. 1, Myceliophthora sp. 2,Myceliophthora sp. 3, and Coprinopsis sp. Two species, T. lanuginosus and S. thermophilum were the dominant species, representing 34.78% and 28.26% of the sample, respectively. Our results indicated a greater diversity of thermophilic fungi in neutral and alkaline geothermal sites than acidic sites around hot springs reported in previous studies. Most of our strains thrived at alkaline growth conditions.

      • KCI등재

        Antioxidant Peptide Purified from Enzymatic Hydrolysates of Isochrysis Zhanjiangensis and Its Protective Effect against Ethanol Induced Oxidative Stress of HepG2 Cells

        Mei-Fang Chen,Yuan Yuan Zhang,Mei Di He,Cheng Yong Li,Chun Xia Zhou,Peng Zhi Hong,Zhong-Ji Qian 한국생물공학회 2019 Biotechnology and Bioprocess Engineering Vol.24 No.2

        Marine microalgae have been widely applied in cosmaceuticals, nutraceuticals, and functional foods. In the present study, we first investigated the hepatoprotective effects of peptide purified from microalgae, Isochrysis zhanjiangensis on HepG2 cells alcoholic injury. I. zhanjiangensis was hydrolyzed utilizing chymotrypsin, trypsin, pepsin, and by vitro gastrointestinal digestion. Among hydrolysates, the gastrointestinal hydrolysate showed relatively high free radical scavenging ability preliminarily and was purified with following sequential chromatography methods. The amino acid sequence and molecular mass of the purified peptide from I. zhanjiangensis (PIZ) was identified as Asn-Asp-Ala-Glu-Tyr-Gly-Ile-Cys-Gly-Phe (NDAEYGICGF; MW, 1088.16 Da) via Q-TOF ESI/MS. Additionally, PIZ attenuated ethanol-induced cytotoxicity and inhibited the production of intracellular reactive oxygen species by DCFH-DA assay. Western blot results showed that superoxide dismutase (SOD) and glutathione (GSH) levels up-regulated with PIZ treatment before alcohol exposure while gamma-glutamyltransferase (GGT) protein expression down-regulated. These results provide an opportunity to discover new highly active peptide against alcohol toxicity in HepG2 cells.

      • Quantitative Analysis of Enlarged Cervical Lymph Nodes with Ultrasound Elastography

        Zhang, Jun-Peng,Liu, Hua-Yan,Ning, Chun-Ping,Chong, Jing,Sun, Yong-Mei Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.16

        Purpsoe: To investigate the diagnostic value of quantitative analysis of a tissue diffusion and virtual touch tissue imaging quantification (VTIQ) technique with acoustic radiation force impulse (ARFI) elastography for assessing enlarged cervical lymph nodes. Materials and Methods: Fifty-six enlarged cervical lymph nodes confirmed by pathologic diagnoses were covered in the study. According to the results of pathologic diagnosis, patients were classified into benign and malignant groups. All the patients were examined by both conventional ultrasonography and elastography. AREA% and shear wave velocity (SWV) in ROI of different groups were calculated and compared using ROC curves. Cut-off points of AREA% and SWV were determined with receiver operating characteristic curves. Results: Final histopathological results revealed 21 cases of benign and 35 cases of malignant lymph nodes. The mean values of AREA% and SWV in benign and malignant groups were $45.0{\pm}17.9%$ and $2.32{\pm}0.57m/s$, and $61.3{\pm}21.29%$ and $4.36{\pm}1.25$)m/s, respectively. For the parameters of elastography, "AREA%" and SWV demonstrated significant differences between groups (p=0.002). AREA% was positively correlated with SWV with a correlation coefficient of 0.809 (P<0.001). Conclusions: Stiffness of different lymph node diseases in patients may differ. Elastography can evaluate changes sensitively and provide valuable information to doctors. The study proved that the VTIQ elastography technique can play an important role in differential diagnosis of lymph nodes.

      • Clinical Efficacy of Bevacizumab Concomitant with Pemetrexed in Patients with Advanced Non-small Cell Lung Cancer

        Zhang, Yu-Mei,Li, Yong-Qiang,Liu, Zhi-Hui,Liao, Xiao-Li,Liang, Rong,Lin, Yan,Yuan, Chun-Ling,Liao, Si-Na,Liang, Chao-Yong,Li, Qian,Li, Le-Qun Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.8

        Objective: To observe the clinical efficacy of bevacizumab concomitant with pemetrexed in patients with advanced non-small cell lung cancer (NSCLC). Materials and Methods: A total of 72 patients were randomly divided into a combination group (pemetrexed+bevacizumab, n=36) and a pemetrexed group (n=36) and assessed for disease control (CR+PR+SD) after 4-cycles of first-line GP chemotherapy (gemcitabine+cisplatin). Clinical efficacy, progression-free survival time (PFS), overall survival time (OS), overall response rate (ORR), disease control rate (DCR) and rate of adverse responses between two groups were observed and compared. Results: ORR and DCR were 27.8% and 83.4% in combination group, and 16.7% and 69.5% in the pemetrexed group, respectively, but there were no significant differences (P>0.05). PFS in combination group and pemetrexed group were 4.6 months and 3.9 months respectively (P=0.09), whereas OS in the combination group was 14 months, evidently higher than in the pemetrexed group (11 months, P=0.004). Adverse responses in both groups included high blood pressure, bleeding, thrombocytopenia, anemia, elevated transaminase, diarrhea, vomiting and proteinuria, but there were no significant differences (P>0.05). Conclusions: Bevacizumab concomitant with pemetrexed has better clinical efficacy and safety, giving rise to prolonged survival time in patients with advanced NSCLC.

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