1.Mutations in promoter and the coding region of Human Tim-3 gene in the Han population from Hubei province of China
Qiwen WU ; Lihua HU ; Pengcheng CAI
Chinese Journal of Immunology 2000;0(08):-
0.05) but quite different from European and African's(P
2.The impact of score and weight of regular grade on the total mark in medical microbiology
Jiezhong DENG ; Linxin PAN ; Jiacheng YANG ; Qiwen HU
Chinese Journal of Medical Education Research 2016;15(5):441-445
Objective To explore the influence of the scores and weights of the regular grade on the evaluation of students' learning effect.Method To compare the impact of the regular grade before and after adjustment on the total mark,analyze the problems exposed during scoring and search for the solutions according to Medical Microbiology results of four grades including Grade 2010 to 2013.SPSS 13.0 software was used for statistical analysis and Pearson method was used for correlation analysis and theory achievement scores.Results The regular grade of four grades scored highly,with the average (95.00 ± 3.80),(96.00 ± 4.55),(95.00 ± 2.84) and (95.00 ±-2.82) respectively.What was more,it had randomness.The correlation coefficient between regular grade and total mark were 0.069,0.149,0.984 and 0.285 respectively.The regular grade of Grade 2010 was the same as Grade 2013 and the theoretical score of Grade 2013 was 4 points lower than Grade 2010(71 vs.75),however the total mark of Grade 2013 was 1 point higher than Grade 2010 (80 vs.79),which showed the more the regular grade weights,the greater it impacted on the total mark.Conclusion The appropriate score and weight of the regular grade is important to evaluate the students' learning effect objectively.
3.Study on the family-based association Tim-1 promoter polymorphism with child allergic asthma
Qiwen WU ; Chun PU ; Pengcheng CAI ; Lihua HU
Chinese Journal of Immunology 2010;26(4):320-324
Objective: To investigate the association between three single nucleotide polymorphisms-2562G>A,-416C>G and-232G>A in Tim-3(T cell immunoglobulin domain and mucin domain protein 3)gene promoter region and child allergic asthma in Chinese Han population by using family-based association study.Methods: Genotypes of 3 SNPs(-2562G>A,-416C>G and-232G>A)in 118 allergic asthma nuclear pedigrees were analyzed by restriction fragment length polymorphism.The genotype data were analyzed by using the family-based transmission disequilibrium test(TDT).Haplotypes and their frequencies were established and analyzed by TRANSMIT software.Results: ①No transmission disequilibrium was found at the-2562G>A and-232G>A sites from heterozygous parents onto patients in 118 trios analyzed by TDT(P>0.05);However,at the-416 C>G locus,the observed values of G allele from heterozygous parents to offspring were significantly higher than the expected values(P<0.05)②The haplotype TDT analysis by TRANSMIT showed the observed and the expected value in GCA and GGA haplotype from parents to the affected offsprings had significant difference respectively(P<0.05).The Global X~2 test results also showed that Tim-1 haplotype were associated with child allergic asthma(X~2 = 17.26, P<0.01).Conclusion: Tim-1 gene promoter-416C>G locus are associated with allergic asthma susceptibility in Hubei Chinese Han population and the haplotypes constructed by-416C>G are also associated with asthma.Tim-1 genetic polymorphism may play an important role in the pathogenesis of asthma.
4.Family-based association study of Tim-3 gene polymorphism with child allergic asthma
Qiwen WU ; Lihua HU ; Pengcheng CAI ; Lingling KONG
Chinese Journal of Microbiology and Immunology 2008;28(12):1084-1088
objective To investigate the association between two single nucleotide polymorphisma (SNP)rsl0053538 and r810515746 in Tim-3(T cell immunoglobulin domain and mucin domain protein 3) gene promoter region and child allergic asthma in Chinese Han population from Hubei province by using faro-ily-based association study.Methods Cenotypes of 2 SNPs(rs10053538 and rs10515746)within Tim-3 gene in 118 allergic flsthma nuclear pedigrees were analyzed by restriction fragment length polymorphism and DNA sequencing.Two family-based designs,transmission disequilibrium test(TDT)and haplotype-based haplotype relaive risk(HRR)were employed for the data analysis.Haplotypes and their frequencies in 118 nuclear pedigrees were established and analyzed by Transmit software.Results The HRR analysis showed no increased risks of contracting the disease owing to rs10053538 and rs10515746 polymorphisma of Tim-3 promoter in our 118 tries(X2=2.430,P>0.05;x2=1.368,P>O.05).N0 transmission disequilibrium was found from heterozygous parents onto patients in our 118 tries analyzed by TDT(x2=2.042,P>0.05;X2=0.750,P>0.05).The haplotype analysis also showed no biased transmission of rs10053538 and rs10515746 haplotypes from parents to the affected offsprings(P>0.05).Condusion The two SNPs rs10053538 and rs10515746 in Tim-3 gene promoter region are not associated with susceptibility to child allergic asthma in Chinese Han population from Hubei province.
5.Approach to the male patient with parathyroid carcinoma presenting as a case of urinary tract infection
Shichun DU ; Qiwen FENG ; Jingfang HU ; Xiaoyong LI ; Wenjun FANG ; Qing SU
Chinese Journal of Endocrinology and Metabolism 2012;28(10):859-861
Parathyroid carcinoma is a rare sporadic disease.Clinical manifestations include hypercalcemia,increased urinary calcium and urinary calculus,osteoporosis,and pathologic fracture.While this patient complained of pollakiuria,urgency,and painful urination,thus might lead to misdiagnosis or missing of diagnosis of parathyroid carcinoma.This article is herewith presented to call attention to discovery,diagnosis,and treatment of parathyroid carcinoma.
6.Distribution characteristics and linkage disequilibrium of TIM4 promoter polymorphisms in asthma patients of Chinese Han population.
Pengcheng, CAI ; Qiwen, WU ; Lin, WANG ; Juan, XIONG ; Fenghua, CHEN ; Lihua, HU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2008;28(4):447-50
To investigate the distribution characteristics and linkage disequilibrium of T cell immunoglobulin domain and mucin domain protein 4 (TIM4) promoter polymorphisms in asthma patients of Chinese Han population, the promoter region of TIM4 was re-sequenced by PCR-sequencing, and linkage disequilibrium was analyzed by SHEsis software. Four single nucleotide polymorphisms (SNPs) in the promoter region of TIM4 were detected, including two new SNPs (at positions-1609,-153) and two reported SNPs (rs6874202, rs6882076). The frequency distribution of rs6882076 was different among different races (P<0.05). In addition, linkage disequilibrium among the SNPs of the promoter region of TIM4 was found and GGTG was the predominant haplotype. There were four SNPs in the promoter region of TIM4 in asthma patients of Chinese Han population, which were in linkage disequilibrium.
7.The characteristics of drug resistant relevant genes in multidrug-resistant and extensively drug-resistant tuberculosis by fast molecular assay
Qiwen FAN ; Jian GUO ; Huizhang ZHANG ; Xiaoyuan WU ; Xiangnan HU ; Xueqin QIAN ; Guilin DENG ; Han KANG ; Wenjuan WU
Chinese Journal of Microbiology and Immunology 2011;31(12):1133-1137
ObjectiveTo analyze the characterstics of phenotype and genotype of multidrug resistant tuberculosis (MDR-TB) and extensively drug resistant tuberculosis (XDR-TB) by molecular line probe assay and liquid culture with MGIT960.MethodsGenoType MTBDR Kits were used for identifying the types of the first-line and second-line antituberculosis drug resistant genes partly and BD MGIT960 was used for detecting the chug susceptibility.Results( 1 ) Out of 94 MDR-TB strains,the rate of drug resistant to EMB,AMK,OFX and MFX by BD MGIT960 assay were 36.2%,17.0%,54.3% and 55.3%,respectively.Among these isolates,13 were extensively drug resistant tuberculosis (XDR-TB).(2) Compared with MGIT960,the concordance rate of GenoType MTBDRplus was 86.2% and 95.7% respectively.Taking MGIT960 results as reference,the sensitivity of GenoType MTBDRsl detecting the susceptibility of EMB,AMK,OFX and MFX to 94 isolates were 47.1%,81.3%,94.1%,94.2%,respectively.The specificity were 75.0%,98.7%,90.7%,92.9%,respectively.(3) Among the rpoB mutation categories,S531L accounts for most.MTB resistant to IFN caused by the mutation of katG chiefly and the S315T1 was in the majority.The gyrA mutation sites located at the ninety-fourth codon most.Out of 94 strains,23 were mixed with 2 kindsof Mycobacterium tuberculosis at least and 7 were undetectable mutations.Conclusion Among the M/XDR-TB,the strains resistant to INH,RFP,AMK,OFX and MFX were caused most by the mutation of katG,rpoB,rrs and gyrA,respectively.The relationship between EMB and embB was not so clear relatively.As a fast detecting drug susceptibility test kit,GenoType MTBDR possess good sensitivity and specificity.So,it could be as an assistant method to guide the therapy on clinic.
8.Preliminary study on the induction and differentiation of γδ T cells-Ⅰ
Chaoying HU ; Liu QIAN ; Weizhi CHENG ; Qiuyu HUANG ; Ping WANG ; Qiwen YU ; Jiying ZHANG ; Xuehua CHEN ; Dongqing ZHANG
Chinese Journal of Immunology 2010;26(4):368-371
Objective: To investigate the variation of γδ T cells from healthy human peripheral blood(PB)and neonatus cord blood (CB)in proliferation and subtypes with isopentenyl pyrophosphate(IPP), and to acquire enough γδ T cells possessing distinct characteristics for experimental study.Methods: Mononuclear-cells from peripheral blood and cord blood induced by IPP were stained separately with monoclonal antibodies,which were fluorescein-labeled,and then used for assaying the expressing condition of surfaco molecules,as well as to evaluate the variation of γδ T cells on the percentage, subtypes and pbenotypes by FCM.Results:γδ T cells only account for a small proportion in both PB and CB.However,there was a significant difference in the heterogeneity between peripheral blood and cord blood γδ T cells.Vγ9Vδ2 T cells were dominant in peripheral blood γδ T cells.Most of Vγ9Vδ2 T cells in fresh isolated PBMC were central memory-type(CD27~+ CD45RA~-)and effector memory-type(CD27~-CD45RA~-)with IPP, PB γδ T cells proliferated strongly;The effector memory-typo(CD27~-CD45RA~-)turned into the main subtype in all Vγ9Vδ2 T cells,and HLA-DR and B7 molecules were highly expressed on the populations.But the cord blood γδ T cells showed rather complex subgroup heterogeneity,and Vγ9Vδ2 T cells were almost na(i)ve-type(CD27~+ CD45RA~+); Though γδ T cells were expanded(the percent of γδ T cells was increased),and Vγ9Vδ2 T cells were differentiated towards central memory-type and effector memory-type on day 14 with IPP,most of γδ T celLs still remained in the phase of na(i)ve-type(CD27~+ CD45RA~+).Conclusion:Tbere lies great differences of γδ T cells in quantity and subtypes between healthy person peripheral blood and neonatus cord blood.Peripheral blood γδ T cells can be activated and proliferated with IPP, while cord blood γδ T cells have the potential to deferentiate into director memory-type which can be used for experimental and clinical study with the synergy of corresponding cytokines.The immuno-regulation and effector function will be reported in other papers.
9.Exploring ways to remove the double J tube fluoroscopically from ureter
Chengshi CHEN ; Jincheng XIAO ; Jing LI ; Weihui YU ; Qiwen BAI ; Pu YU ; Dengwei ZONG ; Hongtao CHENG ; Hongtao HU ; Chenyang GUO ; Hailiang LI
Chinese Journal of Radiology 2016;(2):118-121
Objective To investigate the feasibility and safety of the double J tube removal from ureter under fluoroscopy observation. Methods The medical records of patients in our department from April 2013 to March 2015, who performed“double J tube removal and/or replacement”were retrospectively reviewed and analyzed. These data included gender and age of the patient, position of the double J tube end in the bladder, removal method, fluoroscopy time, postoperative complications and so on. The removal methods were divided into a direct method and an indirect method. The direct method means using the ring of a gooseneck snare to hitch directly the end of double J tube in the bladder, and pulling it to the urethral orifice. For the indirect method, a guide wire and a gooseneck snare first were sent into the bladder to clip the double J tube, then, the ring of the gooseneck snare was used to hitch the end of the guide wire to withdraw the gooseneck snare and the guide wire to the urethral orifice, and the double J tube was pulled to the urethral orifice. The double J tube end position in the bladder had direct relationship with the choice of removal method. The author divided the double J tube end position in the bladder into A type, B1 type, B2 type, and C type. The bladder was divided into four quarters equally. Direct method was suitable for all types, while indirect method was only suitable for B2 and C type. Between April 2013 and September 2014, all patients were treated by the direct method;between October 2014 and March 2015, all patients with B1 and A type were treated by the direct method, and all patients with B2 and C type were treated by the indirect method. According to the success rate of operation, fluoroscopy time, the incidence of different complications, the efficacy and safety were determined. Results This study recruited a total of 49 patients, including 6 males and 43 females, who underwent 114 times of“double J tube removal”. On average, double J tube was removed 2.3 times per case. The overall success rate was 96.5% (110/114). The application of direct method was 92 times, and the success rate was 95.7%(88/92). The application of indirect method was 22 times, and the success rate was 100%(22/22). In this study, there were 4 failures to remove the double J tube, all of which happened in the direct method for the C type of patients. In the successful 110 cases, the average fluoroscopy time was (11.3+9.5) min. The application of direct method was 88 times, and the average fluoroscopy time was (12.3 ± 10.3) min; the application of indirect method was 22 times, and the average fluoroscopy time was (7.6±3.8) min. There were 10 cases with pain in urethral orifice, in which 9 cases was treated with direct method and one with indirect method. There were 5 cases with gross hematuria complicated in direct method. The overall incidence rate of the complications was 13.2% (15/114). All of postoperative complications resolved spontaneously. Conclusion The direct way and the indirect way to remove ureteral double J tube fluoroscopically are feasible and safe .
10.Distribution Characteristics and Linkage Disequilibrium of TIM4 Promoter Polymorphisms in Asthma Patients of Chinese Han Population
CAI PENGCHENG ; WU QIWEN ; WANG LIN ; XIONG JUAN ; CHEN FENGHUA ; HU LIHUA
Journal of Huazhong University of Science and Technology (Medical Sciences) 2008;28(4):447-450
To investigate the distribution characteristics and linkage disequilibrium of T cell immunoglobulin domain and mucin domain protein 4 (TIM4) promoter polymorphisms in asthma patients of Chinese Han population, the promoter region of TIM4 was re-sequenced by PCR-sequencing,and linkage disequilibrium was analyzed by SHEsis software. Four single nucleotide polymorphisms (SNPs) in the promoter region of TIM4 were detected, including two new SNPs (at positions-1609, -153) and two reported SNPs (rs6874202, rs6882076). The frequency distribution of rs6882076 was different among different races (P<0.05). In addition, linkage disequilibrium among the SNPs of the promoter region of TIM4 was found and GGTG was the predominant haplotype.There were four SNPs in the promoter region of TIM4 in asthma patients of Chinese Han population,which were in linkage disequilibrium.