The Impact of Obstructive Sleep Apnea-Hypopnea Syndrome on T-Lymphocyte Subgroups and Natural Killer Cell Activity in the Peripheral Blood of Children
Obstructive sleep apnea-hypopnea syndrome (OSAHS) can impact multiple organ systems in children.
To investigate the effects of OSAHS on T-lymphocyte subgroups and natural killer (NK) cell activity in the peripheral blood of affected children.
A total of 85 children with OSAHS were enrolled into an experimental group (OSAHS) and 76 healthy children were placed in a control group (CON) to compare peripheral blood levels of CD3+, CD4+, CD8+, and NK cell activity using flow cytometry. Meanwhile, their polysomnography results were monitored to analyze the correlation between T-lymphocyte subgroups/NK cell activity and lowest pulse oxygen saturation (LSaO2)/apnea-hypopnea index (AHI).
Compared to the CON group, the CD3+ percentage in the OSAHS group showed no significant difference (65.98 ± 6.54 vs 64.36 ± 5.32; P > 0.05), but the CD4+ percentage, CD4+/CD8+ ratio, and NK cell activity decreased markedly (33.52 ± 3.04 vs 35.26 ± 3.68,1.29 ± 0.14 vs 1.43 ± 0.26, and 11.47 ± 4.58 vs 12.69 ± 2.36, respectively; P < 0.05). In addition, the CD8+ percentage increased significantly (26.18 ± 4.76 vs 24.36 ± 2.32; P < 0.05). Linear regression analysis indicated that the CD3+ percentage was not related to LSaO2/AHI (P > 0.05), but the CD4+ and CD8+ percentages, CD4+/CD8+ ratio, and NK cell activity were linearly related to LSaO2 and AHI (P < 0.05).
OSAHS can affect the cellular immunity of children. The AHI and LSaO2 may be involved in cellular immunity function.
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