iNOS/Arg-1 balance and sIgA levels are associated with intestinal mucosal immune defense in children chronically exposed to air pollutants and lead
Background Air pollutants and lead (Pb) are widespread environmental risk factors that may disrupt children’s intestinal immune homeostasis. However, the immunoregulatory responses of intestinal mucosal immunity to chronic co-exposure remain poorly understood. Methods We conducted a cross-sectional study of 238 childre...