Method:The leptin values in peripheral venous and cord bloods in 62 full term pregnant women were measured by Radioimmunoassay (RIA).

• 方法我们采用放射免疫法(RIA)测定了62例足月妊娠妇女外周静脉血和脐带血中的瘦素浓度,并分析了与新生儿体重的相关性及性别的关系。