Methods The levels of serum leptin in 30 patients with ICP and 40 normal pregnant women were measured by RIA before and one week after delivery; Serum leptin of 30 normal non-pregrant women was also measured.

• 方法 采用放射免疫分析法(RIA)测定30例ICP患者和40名正常妊娠妇女产前及产后1周血清瘦素水平及 30名健康未孕妇女瘦素水平。