Incidence and risk factors of renal injury in human immunodeficiency virus infection/acquired immunodeficiency syndrome patients with poor immune reconstitution / 中华传染病杂志

Objective:To investigate the incidence and risk factors of renal injury in human immunodeficiency virus (HIV) infection/acquired immunodeficiency syndrome (AIDS) patients with poor immune reconstitution.Methods:The HIV infection/AIDS patients with poor immune reconstitution who were visited Second Department of Infection of Hangzhou Xixi Hospital from January to December 2021 were enrolled. The clinical data and laboratory examinations of the patients were collected, and the relevant risk factors were analyzed by logistic regression.Results:Among 303 HIV infection/AIDS patients with poor immune reconstitution, 59(19.5%) patients had renal injury. Logistic regression analysis showed that hypertension (odds ratio ( OR)=0.200, 95% confidence interval (95% CI) 0.065 to 0.618, P=0.005), taking tenofovir ( OR=0.275, 95% CI 0.130 to 0.580, P=0.001), hypoproteinemia ( OR=1.045, 95% CI 1.006 to 1.086, P=0.022), and low CD4 + T lymphocytes level ( OR=1.009, 95% CI 1.003 to 1.014, P=0.001) were risk factors for renal injury. Conclusions:The incidence of renal injury in HIV infection/AIDS patients with poor immune reconstitution is high. Hypertension, taking tenofovir, hypoproteinemia, and low CD4 + T lymphocytes level are risk factors for renal injury in patients.

Monitoring of Plasma Concentration and Analysis of Influential Factors for Paliperidone Palmitate Injection in 37 Patients with Schizophrenia / 中国药房

OBJECTIVE:To explore the influential factors for plasma concentration of paliperidone palmitate injection for pa-tients with schizophrenia. METHODS:37 schizophrenia patients who used Paliperidone palmitate injection and took plasma concentra-tion monitoring in Wuxi Mental Health Center from Sept. 2012 to Jun. 2015 was selected,the results were statistically analyzed,and the influential factors were preliminary explored. RESULTS:Totally 37 times were conducted for the plasma concentration monitoring for paliperidone with the average plasma concentration of(17.72±13.46)ng/ml,and 24 times(accounting for 64.86%)in the range of(10-60 ng/ml);the average plasma concentration of male patients was lower than that of female patients,the difference was statisti-cally significant(P0.05);there was also no significant difference in plasma concentration/dose ratio in patients with different daily dose(P>0.05);the average plasma concentration of patients with combination treatment was higher than that of single drug,the difference was statistically signifi-cant(P0.05). CONCLUSIONS:The plasma concentration of paliperidone palmitate is affected by age,combination treat-ment and other factors,clinic can optimize the therapeutic regimen based on monitoring results of plasma concentration and patients’ symptoms to promote the rational drug use.

P gene RT region mutations of hepatitis B virus in 74 patients with lamivudine-resistance / 中华临床感染病杂志

Objective To investigate mutations at HBV P gene RT region in lamivudine-resistant patients. Methods Serum samples were collected from 74 hepatitis B patients resistant to lamivudine. HBV P gene RT region was amplified by PCR, and the PCR products were directly sequenced and the viral loads were detected. Results There were 7 forms of mutations in 74 patients harboring YMDD mutations detected in this study. The common mutation forms were rtM204V/rtL180M, rtM204I and rtM204I/rtL180M. The most frequent mutation positions were rtM204I (38.7%), rtM204V (21.8%), rtL180M (38.7%) and rtV173L (0.8%). Conclusions The mutation forms and positions of lamivudine-resistant viral strains are complex. Common mutation forms and positions are not directly correlated with the viral load, but some novel forms may be associated with it.

Expression of soluble human anti-idiotypic single chain Fv antibody to hepatitis C core protein in E. coli / 解放军医学杂志

Objective To express soluble human anti-idiotypic single chain Fv to hepatitis C core protein in E.coli. Methods Using phage display technique, the semisynthetic phage library was panned by HCV core monoclonal antibody which was coated in a microtiter plate. After three rounds of biopanning, 53 clones were identified specific to HCV core antibody. The specificity of anti-idiotypic scFv was determined by ELISA. After digested with Sfi/Not, the selected HCV core anti-idiotypic scFv positive clone was subcloned into the vector pCANTAB5E for the expression of E-tagged soluble anti-idiotypic scFv. The E.coli XL1-Blue was transformed and induced by IPTG. The specificity of anti-Id scFv was evaluated with ELISA. Results HCV core anti-Id scFv DNA digestion and sequence data showed that the scFv gene was composed of 774bp. ELISA results demonstrated that the soluble human HCV core anti-idiotypic scFv to HCV core monoclonal antibody had a specific combination character. The molecular weight of expressed HCV core anti-idiotypic scFv was 28kD as shown by SDS-PAGE. Conclusion HCV core anti-Id scFv has been successfully expressed in E.coli.

To screen binding protein of hepatitis B virus core promoter with phage display technic / 解放军医学杂志

Objective To screen the HBV core promoter binding protein, and to investigate their potential role in the replication of HBV DNA. Methods By using HBV core promoter being used as a selective molecule, the T7select human liver cDNA library was biopanned and the positive clones were selected. Results After phage display screening, the positive plaques was amplified and then cloned into the pGEM-Teasy vector. Six positive plaques were chosen for DNA sequencing. The binding protein of HBV core promoter was identified as caboxypeptidase N(CPN) by BLAST. Conclusion The results suggest that phage display screening of binding protein of HBV core protein provides a new approach to study the replication mechanism of HBV DNA.

Screening of binding protein of hepatitis C virus NS4A by phage display from human liver cDNA library / 解放军医学杂志

Objective To screen the HCV NS4A binding protein. Methods By using HCV NS4A as a solidified selective molecule, the T7 select human liver cDNA library was biopanned and the positive clones were selected. After screening, the positive plaques was amplified and then cloned into the pGEM-Teasy vector. Two positive plaques were chosen for DNA sequencing. Results The binding protein of HCV NS4A was identified as mitogen-activated protein kinase (MAPK)-activated protein kinase 5 (MAPKAPK5) by BLAST. Conclusion This approach provides a new way for the study of the pathogenic mechanism of HCV infection.