Methods Samples were obtained from 30 cases with ICP and 27 normal pregnant women(control group). Bax and bcl-2 level in placenta was detected by immunohistochemistry method.

• 方法以30例ICP患者(ICP组)及27例正常产妇(对照组)为研究对象,应用免疫组化方法测定胎盘上凋亡调节基因bax和bcl-2的表达水平。