ウナギ腸各部におけるカドミウムの吸収能および亜鉛共存の効果

概要

論文の詳細を見る
Cadmium absorption was examined in the upper, middle and lower parts of the small and large intestines. Each part of the intestine was everted and incubated at the small and large intestines. Each part of the intestine was everted and incubated at 37℃ in Ringer-Locke solution containing 120μg/ml Cd (CdCl_2・21/2H_2O) with or without 100 μg/ml Zn (ZnCl_2) for 1hr. After the incubation, the metal content of the serosal fluid was measured by atomic absorption flame photometer. Distal small intestine to proximal large intestine revealed high absorption rate of Cd as compared with the other parts of the intestine, but in the presence of Zn, Cd absorption was enhanced and differences among the parts were not seen. On the contrary, the distal parts of the large intestine showed considerably high Zn absorption capacity from Zn-solution. Absorption of Zinc was depressed in the presence of Cd. The interaction between Cd and Zn appeared to be primarily antagonism or augmentation at the absorption site of the intestine.
社団法人日本動物学会の論文
1976-03-25