Interakcija kadmija i kalcija u duodenumu štakora

The active transduodenal transfer of calcium has been studied in five-week old female rats pretreated orally with various doses of cadmium chloride. The transfer was determined on 8th or 15th day by the »everted gut sac« method with calcium-45 as a tracer. Within the range of cadmium doses used, calcium-45 transfer did not change to any significant degree, while its retention in the duodenal wall increased when 0.2 mg of cadmium was given to rats for one week, or when they received 15 mg cadmium divided in two doses.Pet tjedana stare ženke bijelog štakora našeg uzgoja primale su tijekom 7 Hi 14 dana svakodnevno različite doze kadmijevog klorida želučanom sondom. Osmog ili petnaestog dana ispitivali smo metodom »izvrnute crijevne vreće« kretanje kalcija-45 kroz stijenku duodenuma. Doze kadmija koje smo mi koristili nisu značajno mijenjale aktivni transport kalcija-45; zadržavanje radiokalcija u stijenci duodenuma bilo je značajno veće u životinja koje su primile ili 7 puta po 0,2 mg kadmija ili 15 mg kadmija podijeljena u dvije doze