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An association study between IL1RAPL2 gene and non-specific mental retardation in Chinese children
Ke-Jin Zhang,Bo He,Ping-Yuan Gong,Xiao-Cai Gao,Zi-Jian Zheng,Shao-Ping Huang,Fu-Chang Zhang 한국유전학회 2010 Genes & Genomics Vol.32 No.2
Non-specific mental retardation (NSMR) is one of common children psychiatric diseases with a high prevalence (1−3%). Here we investigated the association between the genetic variants of IL1RAPL2 gene and NSMR in the children of QinBa region of China. We chose five common SNPs of IL1RAPL2,examined their individual genotype frequencies using the conventional polymerase chain reaction single strand conformation polymorphism (PCR-SSCP) method, and evaluated the association between these genetic polymorphisms and NSMR with the suitable biostatistic software. The allele and genotype distributions of two SNPs (rs5962298 and rs9887672) showed significant differences between the control and NSMR groups (allele: p = 0.020 and 0.017; genotype: p =0.025 for rs9887672 respectively). The distribution differences became more significant in girls, but disappeared in boys, suggesting a gender effect. Taken together, we provide substantial evidence that IL1RAPL2 conferred a NSMR susceptibility to children of Qinba region in China. In future, further work should be carried out to scan mutations and to investigate the specific-gender effect in this gene.
육가평(Lu Ke-Ping) 한림대학교 아시아문화연구소 2000 아시아문화 Vol.- No.15
1919년, 중국에서 일어난 5ㆍ4운동은 한차례 위대한 반제반봉건운동이며 위대한 사상해방운동이고 신문화운동이며 중국신민주주의 혁명의 시작이다. 그러므로 5ㆍ4운동은 지금 중국의 많은 학자들이 연구하고 있는 인기테마이다. 신중국건립 50년 이래 5ㆍ4운동에 대한 발표된 논문은 1,500여편이고 출판됨 학술저작, 자료집은 180여부나 된다. 이런 연구성과들은 아주 많은 자료로써 5ㆍ4운동의 흥기, 발전 및 승리에 대하여 전면적인 논술을 했고 또 매우 중요한 결론을 내렸다. 그런데 필자는 3ㆍ1운동에 대한 논문과 저작들을 연구하는 과정에서 저자들이 아직까지 홀시한 점이라 할까 혹은 필자들이 지금도 중시를 돌리지 못한 점이 있다고 생각한다. 그것은 곳 중국 5ㆍ4운동에 대한 3ㆍ1운동의 영향인데 다시 말하면 조선의 3ㆍ1운동은 중국 5ㆍ4운동을 폭발, 추진시킨 중요 요소라는 것이다. 나는 본 논문에서 역사자료를 근거로 하여 이 관점을 논술하고자 한다.
Ping Hongyan,Wang Degang,Fu Maxian,Chen Kaihong,Zhang Jiuhong,Li Ke,Jiang Xuewu,Duan Shouxing,Zhang Xuan 대한독성 유전단백체 학회 2022 Molecular & cellular toxicology Vol.18 No.4
Background Diethylstilbestrol (DES) has been shown to disrupt the morphology and proliferation of gubernaculum testis cells. Objective This study aimed to elucidate the mechanism underlying DES induced damage to gubernaculum testis based on proteome analysis. Results Neonatal mice were exposed to DES or control vehicle and the gonads were collected for isobaric tags for relative and absolute quantitation based proteomics analysis. We found that at the early and late stages of gubernaculum development, treatment with different concentrations of DES upregulated the expression of proteins which were generally involved in several function categories including single-organism process, cellular process, binding, catalytic activity, cell part and organelle. KEGG pathway analysis showed that cardiac muscle contraction, oxidative phosphorylation, calcium signaling and cGMP-PKG signaling pathway were the most dysregulated pathways associated with DES in the late stage of gubernaculum development, while steroid biosynthesis was the only enriched pathway in the early stage of gubernaculum development. Conclusion Proteomics profi ling and functional analysis reveal new clues on how DES interferes with cellular processes and disrupts the development of gubernaculum. These findings have potential applications in the treatment of genitourinary diseases such as cryptorchidism.
( Ping Lu ),( Ke Jiang ),( Ya-qiao Hao ),( Wan-ying Chu ),( Yu-dong Xu ),( Jia-yao Yang ),( Jia-le Chen ),( Guo-hong Zeng ),( Zhou-hang Gu ),( Hong-xin Zhao ) 한국미생물 · 생명공학회 2021 Journal of microbiology and biotechnology Vol.31 No.9
Members of the genus Bacillus are known to play an important role in promoting plant growth and protecting plants against phytopathogenic microorganisms. In this study, 21 isolates of Bacillus spp. were obtained from the root micro-ecosystem of Suaeda glauca. Analysis of the 16S rRNA genes indicated that the isolates belong to the species Bacillus amyloliquefaciens, Bacillus velezensis, Bacillus subtilis, Bacillus pumilus, Bacillus aryabhattai and Brevibacterium frigoritolerans. One of the interesting findings of this study is that the four strains B1, B5, B16 and B21 are dominant in rhizosphere soil. Based on gyrA, gyrB, and rpoB gene analyses, B1, B5, and B21 were identified as B. amyloliquefaciens and B16 was identified as B. velezensis. Estimation of antifungal activity showed that the isolate B1 had a significant inhibitory effect on Fusarium verticillioides, B5 and B16 on Colletotrichum capsici (syd.) Butl, and B21 on Rhizoctonia cerealis van der Hoeven. The four strains grew well in medium with 1-10% NaCl, a pH value of 5-8, and promoted the growth of Arabidopsis thaliana. Our results indicate that these strains may be promising agents for the biocontrol and promotion of plant growth and further study of the relevant bacteria will provide a useful reference for the development of microbial resources.
Fatigue behavior of concrete beams reinforced with HRBF500 steel bars
Ke Li,Xin-Ling Wang,Shuang-Yin Cao,Qing-Ping Chen 국제구조공학회 2015 Structural Engineering and Mechanics, An Int'l Jou Vol.53 No.2
The purpose of this study was to investigate experimentally the fatigue performance of reinforced concrete (RC) beams with hot-rolled ribbed fine-grained steel bars of yielding strength 500MPa (HRBF500). Three rectangular and three T-section RC beams with HRBF500 bars were constructed and tested under static and constant-amplitude cyclic loading. Prior to the application of repeated loading, all beams were initially cracked under static loading. The major test variables were the steel ratio, crosssectionalshape and stress range. The stress evolution of HRBF500 bars, the information about crack growth and the deflection developments of test beams were presented and analyzed. Rapid increases in deflections and tension steel stress occured in the early stages of fatigue loading, and were followed by a relatively stable period. Test results indicate that, the concrete beams reinforced with appropriate amount of HRBF500 bars can survive 2.5 million cycles of constant-amplitude cyclic loading with no apparent signs of damage, on condition that the initial extreme tensile stress in HRBF500 steel bars was controlled less than 150 MPa. It was also found that, the initial extreme tension steel stress, stress range, and steel ratio were the main factors that affected the fatigue properties of RC beams with HRBF500 bars, whose effects on fatigueproperties were fully discussed in this paper, while the cross-sectional shape had no significant influence in fatigue properties. The results provide important guidance for the fatigue design of concrete beams reinforced with HRBF500 steel bars.
Ke-Tao Du,Jia-Qin Deng,Xu-Guang He,Zhao-ping Liu,Cheng Peng,Mingsheng Zhang 한국조직공학과 재생의학회 2018 조직공학과 재생의학 Vol.15 No.3
miR-214 plays a major role in the self-renewal of skin tissue. However, whether miR-214 regulates the proliferation and differentiation of human hair follicle stem cells (HFSCs) is unknown. Primary HFSCs were isolated from human scalp skin tissue, cultured, and identified using flow cytometry. An miR-214 mimic and inhibitor were constructed for transfection into HFSCs. The MTS and colony formation assays examined cell proliferation. Immunofluorescence detected the localization and expression levels of TCF4, b-catenin, and differentiation markers. Luciferase reporter and TOP/FOP Flash assays investigated whether miR-214 targeted EZH2 and regulated the Wnt/b-catenin signaling pathway. Western blot determined the expression levels of enhancer of zeste homolog 2 (EZH2), Wnt/b-catenin signaling-related proteins, and HFSC differentiation markers in cells subjected to miR-214 transfection. miR-214 expression was remarkably decreased during the proliferation and differentiation of HFSCs into transit-amplifying (TA) cells. Downregulation of miR- 214 promotes the proliferation and differentiation of HFSCs. Overexpression of miR-214 led to decreased expression of EZH2, b-catenin, and TCF-4, whereas downregulation of miR-214 resulted in increased expression of EZH2, b-catenin, and TCF-4 as well as TA differentiation markers. Immunofluorescence assay revealed that inhibiting miR-214 triggered the entry of b-catenin and TCF-4 into the nucleus. The luciferase reporter and TOP/FOP Flash assays demonstrated that miR- 214 directly targets EZH2 and affects Wnt/b-catenin signaling. The miR-214/EZH2/b-catenin axis could be considered a candidate target in tissue engineering and regenerative medicine for HFSCs.