一、锌的代谢(一)锌在体内的分布:成人体内含锌总量为1.4～3.0克。身体各组织含锌(mg/kg:肝脏(141～245)、肾脏189～230,肌肉197～226(约占总体锌3/5),骨骼218,胰腺115～135,前列腺520,视网膜517,脉络膜562,毛发193,血浆1.2,红细胞0.12,血红蛋白0.42。血液中80％锌存在于碳酸酐酶内,50％锌与血浆前蛋白结合,7％与游离氨基酸,特别是组氨酸和半胱氨酸结合,其余与α_2巨球蛋白、转铁蛋白,β脂蛋白和IgG结合。 First, the metabolism of zinc (a) the distribution of zinc in the body: the total body zinc in adults is 1.4 to 3.0 grams. The body tissues contain zinc (mg / kg: liver (141-245), kidney 189-230, muscle 197-226 (about 3/5 total), bone 218, pancreas 115-135, prostate 520, retina 517, Choroid 562, hair 193, plasma 1.2, erythrocyte 0.12, hemoglobin 0.42 In the blood 80% of the zinc is present in the carbonic anhydrase, 50% of the zinc is bound to the plasma preprotein, 7% to free amino acids, especially histidine and cysteine Amino acid binding, the rest with α 2 macroglobulin, transferrin, β lipoprotein and IgG binding.