Keywords: بخش سزارین انتخابی; Cytokines; IL-1 family; Placenta; Reproductive immunology; IL-1α; interleukin-1alpha; IL-1β; interleukin-1beta; IL-18; interleukin-18; IL-33; interleukin-33; IL-37; interleukin-37; IL-1Ra; IL-1 receptor agonist; IL-18BP; IL-18 binding-protein; IL-36Ra;