AI Article Synopsis
- The study aimed to analyze how pulmonary surfactant (PS) affects the immune response in neonates with respiratory distress syndrome (RDS) by measuring specific cytokines and immunoglobulin levels.
- The research involved 58 neonates split into a control group receiving standard care and a PS treatment group receiving surfactant therapy along with mechanical ventilation.
- Results showed that the PS treatment group had improved respiratory function, shorter mechanical ventilation duration, and altered serum levels of immune markers, indicating that PS therapy positively influences the Th1/Th2 balance in these patients.
Article Abstract
Objective: To investigate the effect of pulmonary surfactant (PS) on the Th1/Th2 balance and serum levels of interleukin-4 (IL-4), interferon-γ (IFN-γ) and IgE in neonates with respiratory distress syndrome (RDS).
Methods: A total of 58 neonates with RDS were divided into control (n=20) and PS treatment groups (n=38). The control group underwent mechanical ventilation and other conventional treatment, while the PS treatment group received with bovine PS treatment within 1 hour of being admitted to the hospital together with mechanical ventilation and other conventional treatment. Enzyme-linked immunosorbent assay was used to measure serum levels of IL-4, IFN-γ and IgE before treatment and 24, 48 and 72 hours after treatment. Simultaneously, arterial blood gas, respiratory system compliance, and other ventilator parameters were recorded.
Results: Compared with the control group, the PS treatment group showed significantly shorter duration of mechanical ventilation and oxygen exposure time (P<0.05), significantly better respiratory system compliance and significantly lower oxygenation index 24, 48 and 72 hours after treatment (P<0.05). At 48 and 72 hours after treatment, serum levels of IFN-γ were significantly lower in the PS treatment group than in the control group (120±46 ng/L vs 229±59 ng/L, P<0.05; 141±40 ng/L vs 282±44 ng/L, P<0.05), and serum levels of IL-4 were significantly higher in the PS treatment group than in the control group (263±48 pg/mL vs 152±45 pg/mL, P<0.05; 417±49 pg/mL vs 201±46 pg/mL, P<0.05). At 72 hours after treatment, serum level of IgE was significantly lower in the PS treatment group than in the control group (115±44 pg/mL vs 199±43 ng/mL; P<0.05).
Conclusions: PS treatment can shorten the duration of mechanical ventilation and oxygen exposure time, regulate serum levels of IFN-γ, IL-4 and IgE, and influence Th1/Th2 balance in neonates with RDS, thus inhibiting lung inflammatory response and reducing lung injury.
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