Methods Twenty three cases of small for gestational age(SGA) and 44 cases of appropriate for gestational age (AGA) were studied. The level of leptin and sOB R in the blood was assayed by ELISA.

• 方法 采用ELISA法和逆转录定量聚合酶链反应检测 2 3例小于胎龄儿 (SGA)和 4 4例适于胎龄儿 (AGA)母血、脐血瘦素和可溶性瘦素受体 (sOB R)浓度 ,胎盘组织瘦素mRNA和瘦素受体 (OB R)mRNA表达水平。