1.The use of ultra deep sequencing technique in the screening program on HIV-1 drug resistance mutation among ART-na?ve patients in Hunan province
Jianmei HE ; Xiaobai ZOU ; Xi CHEN ; Jun ZHENG
Chinese Journal of Epidemiology 2014;(10):1142-1145
Objective To determine the prevalence rates of nucleotide reverse-transcriptase inhibitor (NRTI) and nonnucleoside reverse transcriptase inhibitor (NNRTI) TDRs among HIV-1 ART-na?ve patients in Hunan province using the ultra deep sequencing(UDS) technique. Methods ART-na?ve subjects diagnosed in Hunan between 2010 and 2011 were evaluated by both UDS technique and Sanger sequencing techniques,to the 1%variant level. Mutations were scored using the Stanford HIVdb algorithm to infer the status on drug resistance. Results UDS method was performed on 90 ART-na?ve subjects that seeking service of care,in Hunan. In total,42.2%(38/90)of the subjects showed major NRTI or nonnucleoside reverse transcriptase inhibitor NNRTI TDRs by UDS technique,at a HIV variant frequency level of≥1%,15.6%(14/90)showed NRTI TDR,16.7%(15/90) showed a major NNRTI TDR and 10%(9/90)were both resistant to NRTI and NNRTI when variants were analyzed by Stanford HIVdb. Conclusion ART-na?ve subjects from Hunan province, which had been predominately infected by subtype AE,would frequently possess HIV variants with NRTI/NNRTI TDRs that would affect the use of first line ART in the region,identified by the UDS technique. Further studies were needed to describe the prevalence of TDRs and to gather related information.
2.Analysis of drug resistant mutations among AIDS patients with integrase inhibitors in Hunan province in 2020
Mengran LIANG ; Xiaobai ZOU ; Jianmei HE ; Xi CHEN
Chinese Journal of Experimental and Clinical Virology 2022;36(1):92-96
Objective:To provide data support for acquired immunodeficiency syndrome (AIDS) clinical treatment by evaluating the antiviral therapy effect of integrase inhibitors (INIs) and analyzing the drug resistant mutations.Methods:Patients who exposed to INIs more than 1 year were analyzed retrospectively. Virus suppression failure subjects(viral load ≥1 000 copies/ml) were sequenced for drug resistance analysis.Results:Of 408 patients, 12 cases(2.9%) were virologic failure, 8 cases had drug resistance mutations. The proportion of drug resistance was 2.0%(8/408). Among them, only 1 case(0.2%, 1/408) was resistant to INIs with associated mutations: T66I, G118R and E138K; 7 cases(1.7%, 7/408) were resistant to nucleoside reverse transcriptase inhibitors(NRTIs) with major mutations: M184V/I, D67N for NRTIs; 5 cases(1.2%, 5/408) were resistant to non-nucleoside reverse transcriptase inhibitors(NNRTIs) with major mutation: K103N; 1 case(0.2%, 1/408) was resistant to protein inhibitors (PIs), and associated mutations was I50L.1 case was resistant simultaneously to INIs, NRTIs and NNRTIs, Dual-class mutations were observed in 4 cases(3 cases to NRTIs and NNRTIs, 1 case to PIs and NNRTIs).Conclusions:The study result showed that the drug resistance rate of INIs was low in Hunan province, however, the INIs drug resistance surveillance was necessary.
3.HIV-2 sero-prevalence in Hunan province, China
Jun ZHENG ; Jinyu PENG ; Jianmei HE ; Xiaoling SU ; Xiaobai ZOU ; Yang JIANG ; Xi CHEN
Chinese Journal of Experimental and Clinical Virology 2022;36(4):424-428
Objective:To understand the status of HIV-2 infection and the epidemiological characteristics of HIV-2 infected individuals in Hunan province.Methods:The stock blood samples with HIV-2 indicative bands in the original records of 15 AIDS confirmation laboratories in Hunan province from 2003 to 2020 were collected. The samples were tested by Mikrogen GmbH (HIV 1+ 2) antibody comfirmatory kit (Germany). And meanwhile the epidemiological data of the first HIV test and the epidemiological follow-up records of the cases who could be contacted were collected.Results:A total of 378 samples with HIV-2 indicative bands were collected, involving 363 individuals. Serological test result showed that 326 cases (89.81%) were HIV-1 antibody positive, 18 cases (4.96%) were HIV-2 antibody positive, 12 cases (3.31%) were HIV antibody positive but could not be typed, 6 cases (1.65%) were HIV antibody uncertain and 1 case (0.28%) was negative for HIV-1/2 antibody. There were 15 cases from Xiangtan city and the other 3 cases from Changsha city among the 18 HIV-2 antibody positive individuals. The result of epidemiological investigation showed that there were 12 males (66.67%) and 6 females (33.33%), with a male-to-female ratio of 2∶1. The average age of the first detection was (56.94±12.52) years, in the males the age ranged from 33 to 76 years and in the females the age ranged from 44 to 66 years. The male age span was larger than that of the female. There were 10 married cases (55.56%) including one couple, 6 divorced or widowed cases (33.33%), 2 cases (11.11%) with unknown marital status. There were 13 cases from hospital monitoring (72.22%), 2 cases each from prison detention and blood screening in volunteer donors (22.22%), and 1 case from spouse screening (5.56%). These samples were tested for the first time in 2005, 2009, 2013, 2014, 2018, and 2020, with 1 case each, 6 cases in 2016, 2 cases in 2017, and 4 cases in 2019. By the end of 2020, 9 cases were alive and 9 cases were dead or missing. Three cases have accepted antiviral treatment. Of the 7 cases that could be followed up, all admitted heterosexual transmission, 6 cases denied any history of traveling abroad, and 1 case denied any history of foreign sexual intercourse.Conclusions:HIV-2 epidemic has lasted for a long time in Hunan province, local infection is not an occasional case, and there is a possibility of long-term clustering epidemic spread. This suggests that the country should strengthen the surveillance, detection, diagnosis and treatment of HIV-2 research and pay attention to the risk of HIV-2 transmission.
4.The use of ultra deep sequencing technique in the screening program on HIV-1 drug resistance mutation among ART-naїve patients in Hunan province.
Jianmei HE ; Xiaobai ZOU ; Xi CHEN ; Jun ZHENG
Chinese Journal of Epidemiology 2014;35(10):1142-1145
OBJECTIVETo determine the prevalence rates of nucleotide reverse-transcriptase inhibitor (NRTI) and nonnucleoside reverse transcriptase inhibitor (NNRTI)TDRs among HIV-1 ART-naїve patients in Hunan province using the ultra deep sequencing (UDS) technique.
METHODSART-naїve subjects diagnosed in Hunan between 2010 and 2011 were evaluated by both UDS technique and Sanger sequencing techniques, to the 1% variant level. Mutations were scored using the Stanford HIVdb algorithm to infer the status on drug resistance.
RESULTSUDS method was performed on 90 ART-naїve subjects that seeking service of care, in Hunan. In total, 42.2% (38/90) of the subjects showed major NRTI or nonnucleoside reverse transcriptase inhibitor NNRTI TDRs by UDS technique, at a HIV variant frequency level of ≥1%, 15.6% (14/90) showed NRTI TDR, 16.7% (15/90) showed a major NNRTI TDR and 10% (9/90) were both resistant to NRTI and NNRTI when variants were analyzed by Stanford HIVdb.
CONCLUSIONART-naїve subjects from Hunan province, which had been predominately infected by subtype AE, would frequently possess HIV variants with NRTI/NNRTI TDRs that would affect the use of first line ART in the region, identified by the UDS technique. Further studies were needed to describe the prevalence of TDRs and to gather related information.
Anti-HIV Agents ; therapeutic use ; China ; Drug Resistance, Viral ; genetics ; HIV Infections ; drug therapy ; virology ; HIV-1 ; genetics ; High-Throughput Nucleotide Sequencing ; Humans ; Mutation ; Prevalence ; Reverse Transcriptase Inhibitors ; analysis
5.A survey on the present status of diagnosis and treatment of Graves' disease in Jiangsu province
Tiantian LI ; Xiaobai ZOU ; Hongqi FAN ; Min SUN ; Yong GU ; Jian WANG ; Dalong ZHU ; Jianhua MA ; Wei LI ; Shiwei CUI ; Xingbo CHENG ; Tao YANG ; Xuqin ZHENG
Chinese Journal of Endocrinology and Metabolism 2019;35(7):576-580
Objective To investigate the management of Graves' disease in Jiangsu province. Methods According to the 2011 management of GD survey from American Thyroid Association and the 2013 survey from European Thyroid Association, a questionnaire was designed for this survey to acquire the diagnosis, treatment, and follow-up of Graves' disease among endocrinologists from 35 tertiary hospitals in Jiangsu province. Results A total of 476 valid questionnaires were collected. For patients with symptoms of hyperthyroidism, a large majority of respondents monitored serum FT3 , FT4 , TSH, thyroid peroxidase antibody, thyroglobulin antibody, TSH receptor antibody, and finding of thyroid ultrasound, accounted for 95. 6%, 95. 0%, 95. 4%, 95. 8%, 90. 3%, 90. 5%, and 93. 9%physicians, respectively. 91.2% of physicians preferred anti-thyroid drugs as the first-line treatment, and 92. 6% of them gave priority to the use of methimazole. For the duration of anti-thyroid drugs therapy, 41.2%of endocrinologists chose 24 months, while 20% chose 18 months. When patients have moderate and active ophthalmopathy, most respondents with medium or senior professional titles preferred anti-thyroid drugs, while most resident physicians chose radioactive iodine plus corticosteroids. When pregnancy was confirmed in the patients of Graves' disease, 88% of respondents preferred propylthiouracil during the first trimester of pregnancy, and 58. 4% of them would continue propylthiouracil into the second trimester. Conclusions The mastering of basic perception of Graves' disease knowledge is satisfactory among the endocrinologists. But by comparing to the American and European survey results and related guidelines, there are still some differences in diagnosis and treatment. Therefore, physicians should notice those differences and make improvement on standardized treatment for patients to raise the response ratio while reducing the recurrent events.