1.Preliminary application of antibody-capture ELISA detection the antibody of Japanese encephalitis virus
Yong, WANG ; Xia, LI ; Bin-you, WANG
Chinese Journal of Endemiology 2010;29(3):341-344
Objective To set up an antibody-capture ELISA method to detect the Japanese encephalitis virus(JEV)antibody.Methods ELISA plate was coated with the monoclonal antibody which was specific to the envelope protein epitope E39 of JEV,JEV SA14-14-2 strain as the source of antigen was used to absorb the monoclonal antibody,the absorbed virus used to capture the JEV'S antibody.The antibody that captured ELISA was established.The indirect ELISA method using the virus particles from cell culture was compared with coating ELISA plate,105 clinical serum were checked.Results The background in indirect ELISA assay could not be abscised,positive and negative serum diluted in a ratio of 1:10,1:100,1:1000,the relative value of A posative/A negative were 1.02,0.99,1.13,all<2.1.But the antibody-captured ELISA method when the serum dilution was 1:10,1:100,the A posative/A negative were 3.57,2.94,all>2.1;when the dilution was 1:1000,the A posative/A negative was 1.42,<2.1,it meant the method could distinguish the positive and negative serum efficiently when the dilution Was 1:100,the background problem in indirect ELISA assay could be solved.Antibody-capture method was used to check 105 serum samples,the A posative/A negative over a range of 0.257~0.321(0.262±0.050),all<2.1,no positive sample found.Conclusion The antibody-capture ELISA method has been preliminary set up with a high specificity,capable of quickly identifying JEV from other virus.
2.Value of Single Photon Emission Computed Tomography Thyroid Imaging for Diagnosis of Congenital Hypothyroidism
huan-bin, LI ; qi, ZHANG ; qing-huan, YOU ; ling, WANG
Journal of Applied Clinical Pediatrics 2004;0(12):-
Objective To explore the causes of congenital hypothyroidism by single photon emission computed tomography(SPECT) thyroid imaging.Methods Nineteen cases with congenital hypothyroidism were collected,and SPECT thyroid imaging was performed 15 minutes late after injected 99m TcO_ 4- 18.5-37.0 MBq.Results Five cases were found with normal glands,1 case with enlarged thyroid, 2 cases with enlarged thyroid and increased radiation,4 cases with ectopic thyroid,4 with a hypogenetic thyroid,and the last 3 cases showed no thyroid imaging.Conclusions The causes of congenital hypothyroidism can be found by SPECT thyroid imaging,which is important to the diagnosis of congenital hypothyroidism combined with detection of T_3,T_4,TSH.
3.Efficacy of self-disigned long-thick silicone prothesis on severe microgenia
Bin XUE ; Zuojun ZHAO ; You LU ; Xiuyan WANG
Chinese Journal of Medical Aesthetics and Cosmetology 2013;(1):18-20
Objective To evaluate the efficacy of self-disigned long-thick silicone prothesis in the treatment of severe microgenia.Methods A long-thick silicone prothesis was designed according to the measurement results gained by a coordinate caliper.The designed long-thick silicone prothesis was sterilized by uperization.The procedure commenced under local anesthesia for all patients.The prothesis was placed through an intraoral incision.The digital photographs were taken at the pretreatment visits and 3 months and 12 months after treatment follow-up to observe the change of the chin projection.Results 20 cases of severe microgenia were treated with this technique.All wounds healed primarily.There was no infection,extrusion and rejective reaction.The profiles of chins were improved obviously and reached aesthetic standard.Only one implant required adjustment 3 months after first operation because of displacement.After 12 months follow-up the reshaping contour of the chins were satisfied.Locations of silicone prothesis were stable.No differences of the chin projection were observed.All patients were satisfied with their cosmetic results.Conclusions Implanting long-thick silicone prothesis to correct severe microgenia is safe,effective,simply,cheap and less invasive.
5.A case-control study on risk factors of hypospadias.
Chinese Journal of Epidemiology 2004;25(3):261-264
OBJECTIVEHypospadias is one of the most commonly seen urogenital congenital malformations in males and to identify its etiological factors.
METHODSA hospital-based case-control study was conducted, with 107 hypospadias cases. Two matched controls per case were randomly selected. Both cases and controls were face to face interviewed with a uniformed questionnaire. Conditional logistic regression model was used for univariable and multivariate analysis on SAS 6.12 to estimate odds ratios (OR) and 95 per cent confidence internals (95% CI).
RESULTSData from multiple conditional logistic regression analysis showed that hypospadias was positively associated with maternal history of spontaneous abortion (OR = 3.87, 95% CI: 1.60 - 9.39), with threatened abortion in the first or second trimester (OR = 3.57, 95% CI: 1.31 - 9.64), with common cold accompanied fever in the first trimester (OR = 7.63, 95% CI: 2.50 - 23.24), with maternal drug (antibiotic, analgesiscs) exposure during the second trimester (OR = 16.46, 95% CI: 3.46 - 78.21), with paternal exposure to pesticides occupationally (OR = 3.70,95% CI: 1.49 - 9.16), with neonatal low birth weight (OR = 12.62, 95% CI: 2.97 - 53.67), but was negatively associated with maternal diet supplemented with protein in the first trimester (OR = 0.33, 95% CI: 0.15 - 0.74).
CONCLUSIONSThe risk factors of hypospadias seemed to include maternal history of spontaneous abortion, threatened abortion in the first or second trimester, maternal common cold accompanied fever in the first trimester, maternal drug exposure during the second trimester, paternal occupational exposure to pesticides, neonatal low birth weight. However, maternal diet supplemented with protein probably acted as the protective factor for neonatal hypospadias in the first trimester.
Adolescent ; Case-Control Studies ; Child ; Child, Preschool ; Hospitals ; statistics & numerical data ; Humans ; Hypospadias ; etiology ; Infant ; Logistic Models ; Male ; Multivariate Analysis ; Risk Factors ; Surveys and Questionnaires
7.Extraction of the 7 Loci of the donor murine MHC gene and construction of plasmids
Tong LI ; Wenqian ZHANG ; Shengcai HOU ; Hui LI ; Bin HU ; Jinbai MIAO ; Bin YOU ; Yili FU ; Qirui CHEN ; Yang WANG
Chinese Journal of Organ Transplantation 2010;31(10):626-629
Objective To extract the loci of murine MHC gene and construct plasmids.Methods The RNA of mice was extracted and reversely transcribed into cDNA.By using nested PCR,the products were connected with T vector,cloned,and sequenced.Subsequently,the genes were digested by endonucleases,connected with expression vector,and sequenced again to choose the correct clones.Results After the nested PCR,the products were approved by sequencing.After being connected with the vectors,they were approved again by sequencing and the correct clones were chosen.Conclusion All of the loci of the MHC gene can be obtained by nested PCR.The plasmids from the correct clone can be used in the further experiments of transferring the gene to mitigate the transplantation rejection.
8.Construction of recombinant lentivirus vaccine with single round replication.
Chinese Journal of Epidemiology 2006;27(3):249-252
OBJECTIVETo develop a safe and effective lentivirus vaccine model and provide insights into the development of other lentivirus vaccines.
METHODSIn this study, a construct of pGPT was made by deleting env gene in the infectious Equine infectious anemia virus (EIAV) molecular clone of WU57. Since the overlaping of EIAV Rev gene with env gene, there was no Rev gene in the construct of pGPT. For compensation of Rev function, the construct of pGPTC was made by inserting 4 copies of constitutive RNA transport elements (CTEs) from Mason-Pfizer monkey virus into the construct of pGPT. In addition, a construct designated pTEB expressing EIAV Env protein was made while env gene-minus viruses were made by co-transfection of pGPT/pTEB or pGPTC/pTEB into 293 cells. Western blot was used to identify the development of recombinant virus particles. Then immunofluorescence assay was used to evaluate the infectivity of recombinant virus particles in vitro.
RESULTSEIAV proteins expression was detected in the supernatant of transfected 293 cells by Western blot within pGPTC/pTEB transfected cells. However, no evidence of EIAV proteins expression was observed within pGPT/pTEB transfected cells. EIAV proteins expression was detected in the first round but not in the second round infected EK cells with EIAV(GPTC) by immunofluorescence assay.
CONCLUSIONRev/RRE was necessary for expression of viral structural proteins; CTEs from Mason-Pfizer monkey virus was functionally interchangeable with EIAV Rev/RRE to help RNAs transportation out of nucleus to express structural proteins and EIAV particles were produced in the transfected 293 cells. A live EIAV recombinant virus with single round infection had been developed.
Animals ; Blotting, Western ; Cells, Cultured ; Fluorescent Antibody Technique ; Genes, rev ; Haplorhini ; Horses ; Humans ; Infectious Anemia Virus, Equine ; genetics ; Lentivirus ; immunology ; Lentivirus Infections ; immunology ; prevention & control ; Mason-Pfizer monkey virus ; genetics ; Transfection ; Vaccines, Synthetic ; Viral Vaccines ; genetics ; immunology
9.Damage control surgery in severe abdominal trauma
Jianquan YOU ; Haixin QIAN ; Jiawen DAI ; Fei QIAN ; Dingsong WANG ; Bin GU ; Qing YU
Chinese Journal of Emergency Medicine 2014;23(4):443-445
Objective To investigate the utilization of damage control surgery (DCS) in treatment of the severe abdominal traumas.Methods The clinical data of 56 patients with severe abdominal traumas treated by DCS (Emergency operation,fluid resuscitation and definitive operation were used gradually.)from January 2011 to January 2013 in Department of General Surgery,Taizhou People's Hospital were retrospectively analyzed.Results Of the 56 patients,52 were cured and discharged from hospital,the clinical curative rate was 92.9%; 4 patients dead.Conclusions Abdominal traumas under going operations by applying the damage control surgery significantly increased the clinical curative rate.
10.Effect of high-flux hemodialysis on insulin resistance and microinflammatory state in elderly diabetic nephropathy patients with maintenance hemodialysis
Xiaobin LIU ; Liang WANG ; Bin LIU ; Yuwang YOU ; Zhijian ZHANG ; Yong CHEN ; Zhuxing SUN
Chinese Journal of Geriatrics 2014;33(2):159-162
Objective To investigate the effect of high-flux hemodialysis on insulin resistance and microinflammatory state in elderly diabetic nephropathy (DN) patients with maintenance hemodialysis(MHD).Methods A total of 49 elderly DN patients with MHD and 10 healthy controls undergoing health examination survey were enrolled.Levels of homeostasis model assessment of insulin resistance index(HOMA-IR),interleukin-6(IL-6) and high sensitivity C-reactive protein(hs-CRP) were analyzed and compared between patients and the controls.Patients with MHD were randomly divided into two groups:high-flux hemodialysis(HFHD) group and low-flux hemodialysis (LFHD) group.Changes of the parameters including HOMA-IR,IL-6,hs CRP and urea excretion rate(kt/v) were observed before and after treatment for 12 months.Results Levels of IL-6,hs-CRP and HOMA-IR were significantly higher in DN patients with MHD than in the control group [(126.22±13.23)ng/L vs.(12.68±3.63)ng/L,(12.13±1.73)mg/L vs.(2.55±1.27) mg/L,(4.83 ±1.23) vs.(0.32 ± 0.15),respectively,all P< 0.01].The levels of IL-6 and Hs-CRP were positively correlated with HOMA-IR in elderly DN patients (R =0.656,0.729,R2 =0.43,0.532,both P<0.01).Compared with before treatment,levels of fasting insulin(Fins),HOMA-IR and IL-6 were decreased in HFHD group after MHD for 12 months (all P< 0.05),while there were no differences in levels of Fins,HOMA-IR,IL-6 and hs-CRP in the LFHD group before and after MHD (all P>0.05).The levels of Fins,HOMA-IR and IL-6 were significantly lower in the HFHD group than in the LFHD group after MHD for 12 months(all P<0.05).Conclusions Insulin resistance and microinflammatory are common observed in elderly DN patients with MHD.High-flux hemodialysis may decrease the levels of IL-6 and hs-CRP,and ameliorate insulin resistance and microinflammatory state.