ABSTRACT
Lymphocyte subsets enumeration is of paramount importance in the management of immunodeficiency disorders such as HIV/AIDS. For better interpretation of laboratory findings, reference intervals must be determined in each population. Because of scarcity of published studies from Iranian population, lymphocyte subsets were enumerated in 142 healthy Iranian men by a single platform flow cytometric method. Mean and 95% confidence interval for CD4+ T cells, CD8+ T cells, CD4/CD8 ratio, B cells, and natural killer cells were 748.8 (351-1207), 409.0 (192-752), 1.96 (0.77-3.70), 238.6 (82-500), and 200.7 (91-393), respectively. We compared our results with other studies and found significant differences with some of them. In conclusion, we endorse determination of lymphocyte subsets reference interval in different populations.
Subject(s)
Flow Cytometry/methods , HIV Infections/diagnosis , Lymphocyte Subsets/cytology , Adult , B-Lymphocyte Subsets/cytology , CD4-CD8 Ratio/instrumentation , CD4-CD8 Ratio/methods , CD4-Positive T-Lymphocytes/cytology , CD8-Positive T-Lymphocytes/cytology , Flow Cytometry/instrumentation , HIV Infections/immunology , Humans , Iran , Killer Cells, Natural/cytology , Male , Reference Values , T-Lymphocyte Subsets/cytologyABSTRACT
Vaccination of all newborns with bacille Calmette-Guérin (BCG) vaccine is a standard practice in developing countries. Disseminated mycobacterial infection in an immunocompromised child can be caused by BCG and other mycobacteria. A total of 21 patients with a histopathologic diagnosis of mycobacterial infection were studied in a period of 4 years. DNA was extracted from formalin-fixed, paraffin-embedded tissues. Real-time polymerase chain reaction was performed to determine the mycobacterial species. The overall sensitivity of the assay was 71.5%. The prevalence rates of BCG, Mycobacterium tuberculosis, and other mycobacteria in the positive results were 80% (12/15), 13% (2/15), and 7% (1/15), respectively.
