Fasting induced intestinal atrophy, reduced plasma insulin and IGF-1 messenger RNA(mRNA) levels; these changes were reversed by refeeding.

• 禁食引起肠萎缩，血浆胰岛素和IGF－1浓度降低以及空肠IGF-1信使RNA（mRNA）水平的明显降低，再喂养可逆转这些改变。