• Bmc Immunol · Aug 2019

    The predictive role of CD4+ cell count and CD4/CD8 ratio in immune reconstitution outcome among HIV/AIDS patients receiving antiretroviral therapy: an eight-year observation in China.

    • Chong-Xi Li, Yu-Ye Li, Li-Ping He, Jing Kou, Jin-Song Bai, Jun Liu, Bo Tian, Li-Juan Cao, Kun-Hua Wang, and Yi-Qun Kuang.
    • Department of Dermatology and Venerology, The First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China.
    • Bmc Immunol. 2019 Aug 28; 20 (1): 31.

    BackgroundThe immune reconstitution after initiation of highly active antiretroviral therapy (HAART) among HIV-infected individuals substantially affects patients' prognosis. However, the dynamic characteristics and predictors of reconstitution outcome remain unclear.MethodsIn this study, the HIV/AIDS patients with sustained virological suppression (viral load < 50 copies/ml) after HAART were enrolled. The patients were subgrouped into immunological non-responders (INRs) (< 200 cells/μl), immunological inadequate responders (IIRs) (200 ~ 500 cells/μl) and immunological responders (IRs) (> 500 cells/μl) according to the CD4 cell count after two-year HAART. The immune reconstitution data based on the CD4+ and CD8+ cell counts with 8-year follow-up were collected for analysis.ResultsThe CD4+ cell counts in the immunological responders (IRs) were significantly higher than in the immunological non-responders (INRs) and immunological inadequate responders (IIRs) (P <  0.001). The overall CD4+ cell count and CD4/CD8 ratio in the IRs increased faster than the IIRs and INRs. The CD4+ cell count growth at 0.5 year and 1 year after HAART in the IRs was significantly higher than the IIRs and INRs. The ROC curve demonstrated that 1 year CD4+ cell count had the highest predictive value, with the best cut-off value of 188 cells/μl, the predictive sensitivity was 81.0%, the predictive specificity was 85.2%, false positive rate was 14.8%, false negative rate was 19.0%, positive predictive value (IR) was 63.0%, negative predictive value (INR) was 93.5%.ConclusionsTaken together, our findings suggest that early initiation of HAART can reduce the immune reconstitution failure. The combination of baseline CD4+ cell count and baseline CD4/CD8 ratio may serve as a valid predictor of immune reconstitution prognosis after HAART.

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