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胰岛素样生长因子２（ＩＧＦ２）被认为是结、直肠癌的自分泌因子，由肝脏产生。但有关ＩＧＦ－２在肝转移中的确切机制尚未完全明了，为此作者进行了研究。材料与方法 ３０例结、直肠癌肝转移患者，男性１６例，女性１４例，平均年龄６２６岁，均经手术切除病理检查证
Insulin-like growth factor-2 (IGF-2) is considered to be an autocrine factor of colorectal cancer, produced by the liver. However, the exact mechanism of IGF-2 in liver metastases has not yet been fully understood. Materials and Methods 30 patients with hepatic metastasis of rectal cancer were enrolled in this study. There were 16 males and 14 females. The average age was 62 to 6 years. All patients underwent surgical resection.