1
|
Li Y, He C, He Z, Zhong M, Liu D, Liu R, Fan R, Duan Y. AIDS prevention and control in the Yunnan region by T cell subset assessment. PLoS One 2019; 14:e0214800. [PMID: 30998710 PMCID: PMC6472762 DOI: 10.1371/journal.pone.0214800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 03/20/2019] [Indexed: 11/18/2022] Open
Abstract
Background Prior to being spread throughout broader China, multiple human immunodeficiency virus (HIV)-1 genotypes were originally discovered in the Yunnan Province. As the HIV-1 epidemic continues its spread in Yunnan, knowledge of the influence of gender, age, and ethnicity to instances of HIV reservoirs will benefit monitoring the spread of HIV. Methods The degree to which T cells are depleted during an HIV infection depends on the levels of immune activation. T-cell subsets were assessed in newly-diagnosed HIV/AIDS patients in Yunnan, and the influence of age, gender, and ethnicity were investigated. Patients that were newly diagnosed with the HIV-infection between the years 2015 and 2018 at the First Affiliated Hospital of Kunming Medical College were selected for this study (N = 408). The lymphocyte levels and T cell subsets were retrospectively measured in whole blood samples by FACS analysis. Results The median CD4 count was 224 ± 191 cells/μl. Significantly higher mean frequencies and absolute numbers were observed in CD3+, CD3+CD4+, CD3+CD8+, CD45+, and CD3+CD4+/CD45+ in females compared to males. Han patients showed a higher total number of CD3+T cells and the ratio of CD3+ /CD45+ cells compared to any other ethnic minority (P < 0.001). The numbers of CD3+ T-cells, CD3+CD8+ T cells, and CD45+ T cells were highest in the age group ≥ 60. Significant differences were observed in the counts of CD3+, CD3+CD8+, and CD45+ cells and the ratio of CD3+/CD45+ and CD3+CD4+/CD45+ cells between the ≤ 29 and 30–59 age groups. Conclusion This study has revealed that low levels of CD4+ T cells can be observed in newly-diagnosed HIV/AIDS patients in the Yunnan province. It has also been demonstrated that gender, age, and ethnicity have a significant association with the ratio of T-cell subsets that may contribute to virus progression and disease prognosis in individuals belonging to certain subsets of the population. This study has highlighted the importance of HIV/AIDS screening in at-risk populations to ensure timely and adequate clinical management in Yunnan.
Collapse
Affiliation(s)
- Ya Li
- Yunnan Key Laboratory of Laboratory Medicine, Kunming, Yunan, China
- Yunnan Institute of Laboratory Diagnosis, Kunming, Yunan, China
- Department of Clinical Laboratory, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunan, China
| | - Chenglu He
- Yunnan Key Laboratory of Laboratory Medicine, Kunming, Yunan, China
- Yunnan Institute of Laboratory Diagnosis, Kunming, Yunan, China
- Department of Clinical Laboratory, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunan, China
| | - Zengpin He
- Yunnan Key Laboratory of Laboratory Medicine, Kunming, Yunan, China
- Yunnan Institute of Laboratory Diagnosis, Kunming, Yunan, China
- Department of Clinical Laboratory, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunan, China
| | - Min Zhong
- Yunnan Key Laboratory of Laboratory Medicine, Kunming, Yunan, China
- Yunnan Institute of Laboratory Diagnosis, Kunming, Yunan, China
- Department of Clinical Laboratory, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunan, China
| | - Dajin Liu
- Department of Medical Records and Statistics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunan, China
| | - Ruiyang Liu
- Department of Standardized Training, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunan, China
| | - Ruixuan Fan
- Department of Infectious Diseases, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunan, China
| | - Yong Duan
- Yunnan Key Laboratory of Laboratory Medicine, Kunming, Yunan, China
- Yunnan Institute of Laboratory Diagnosis, Kunming, Yunan, China
- Department of Clinical Laboratory, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunan, China
- * E-mail:
| |
Collapse
|
2
|
Ngarina M, Kilewo C, Karlsson K, Aboud S, Karlsson A, Marrone G, Leyna G, Ekström AM, Biberfeld G. Virologic and immunologic failure, drug resistance and mortality during the first 24 months postpartum among HIV-infected women initiated on antiretroviral therapy for life in the Mitra plus Study, Dar es Salaam, Tanzania. BMC Infect Dis 2015; 15:175. [PMID: 25886277 PMCID: PMC4392730 DOI: 10.1186/s12879-015-0914-z] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2014] [Accepted: 03/25/2015] [Indexed: 11/26/2022] Open
Abstract
Background In the Mitra plus study of prevention of mother-to-child transmission of HIV-1, which included 501 women in Dar es Salaam, Tanzania, triple antiretroviral therapy (ART) was given from late pregnancy throughout breastfeeding up to 6 months postnatally. Here we report findings in a sub-cohort of women with ≤200 CD4cells/μL at enrolment who were continued on ART for life and followed up during 24 months after delivery to determine virologic and immunologic responses, drug resistance and mortality. Methods Blood samples for viral load and CD4 counts testing were collected at enrolment and at 3, 6, 12 and 24 months postpartum. HIV drug resistance testing was performed at 12 months. Data analysis included descriptive statistics and multivariate analysis using Generalized Estimated Equations of 73 women with at least two postpartum assessments. The mortality analysis included 84 women who had delivered. Results The proportion of women with a viral load ≥400 copies/mL was 97% (71/73) at enrolment, 16% (11/67), 22% (15/69), 61% (36/59) and 86% (48/56) at 3, 6, 12 and 24 months postpartum, respectively. The proportion of women with immunologic failure was 12% (8/69), 25% (15/60) and 41% (24/58) at 6, 12 and 24 months, respectively. At 12 months, drug resistance was demonstrated in 34% (20/59), including 12 with dual-class resistance. Self-report on drug adherence was 95% (64/68), 85% (56/66), 74% (39/53) and 65% (30/46) at 3, 6, 12 and 24 months, respectively. The mortality rate was 5.9% (95% CI 2.5-13.7%) at 24 months. The probability of virologic and immunologic failure was significantly higher among women who reported non-perfect adherence to ART at month 24 postpartum. Conclusions Following an initial decline of viral load, virologic failure was common at 12 and 24 months postpartum among women initiated on ART for life during pregnancy because of low CD4 cell counts. A high proportion of viremic mothers also had resistance mutations. However, at 24 months follow-up, the mortality rate was still fairly low. Continuous adherence counseling and affordable means of monitoring of the virologic response are crucial for successful implementation of the WHO Option B+ guidelines to start all HIV-infected pregnant women on ART for life.
Collapse
Affiliation(s)
- Matilda Ngarina
- Department of Obstetrics and Gynecology, Muhimbili National Hospital, 65000, Dar es Salaam, Tanzania. .,Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden. .,Public Health Agency of Sweden, Stockholm, Sweden.
| | - Charles Kilewo
- Departments of Obstetrics and Gynecology, Muhimbili University of Health and Allied Sciences, 65001, Dar es Salaam, Tanzania.
| | | | - Said Aboud
- Department of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, 65001, Dar es Salaam, Tanzania.
| | - Annika Karlsson
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden.
| | - Gaetano Marrone
- Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden.
| | - Germana Leyna
- Department of Epidemiology and Biostatistics, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania.
| | - Anna Mia Ekström
- Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden. .,Department of Infectious Diseases, Karolinska University Hospital, Huddinge, Stockholm, Sweden.
| | - Gunnel Biberfeld
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden. .,Public Health Agency of Sweden, Stockholm, Sweden.
| |
Collapse
|
3
|
CD4+ cell count testing more effective than HIV disease clinical staging in identifying pregnant and postpartum women eligible for antiretroviral therapy in resource-limited settings. J Acquir Immune Defic Syndr 2010; 55:404-10. [PMID: 20595905 DOI: 10.1097/qai.0b013e3181e73f4b] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Identifying antiretroviral therapy (ART) eligible HIV-infected (HIV+) pregnant women and rapidly initiating treatment preserves maternal health and prevents mother-to-child transmission. However, there have been few investigations of the performance of ART eligibility criteria in pregnant and postpartum women in resource-limited settings. METHODS Pregnant and recently postpartum HIV+ women received CD4+ cell count and World Health Organization (WHO) clinical staging at enrollment into the mother-to-child transmission Plus Initiative. We compared immunologic and clinical criteria based on 2009 WHO ART treatment guidelines (WHO stage 3/4 or CD4+ cell count ≤350 cells/mm³) in identifying ART eligible women. RESULTS Among 6036 women (62% antepartum, 38% postpartum), 2915 (48%) were ART eligible. Only 23% had WHO stage 3 or 4 disease, whereas 94% met CD4+ cell count criterion. Among 5356 women with WHO stage 1 or 2 disease, 2235 (42%) had CD4+ ≤350 cells per cubic millimeter. Change of CD4+ cell count ART eligibility threshold from ≤200 to ≤350 cells per cubic millimeter increased the proportion of ART eligible women from 21% to 45%. CONCLUSIONS Use of CD4+ cell count criterion is superior to clinical staging in identifying pregnant and postpartum HIV+ women eligible for ART. Improving access to CD4+ testing is essential to identify and treat eligible women, optimizing maternal and child health outcomes.
Collapse
|