Increased expressions of TNFR1 in decidua tissues might be one of causes of spontaneous abortion. sTNFR1 in serum was important to maintain gestation.

• 蜕膜组织TNFR1表达的增加是自然流产发生的原因之一,而血清sTNFR1水平的升高则对妊娠具有自我保护和自我调控的生理机制。