No hypocalcemic action of Stannius corpuscle homogenates in rats

1. Serum Ca level of goldfish administered with homogenate of the corpuscles of Stannius (CS) taken from 1/3 seawater-acclimated goldfish was significantly lower than that of the control goldfish up to 2 hr after administration. 2. Serum Ca, Mg, Pi, Na and K levels of rats administered with CS homogenates of freshwater eels, 1/3 seawater-acclimated goldfish, or seawater-inhabited wrasse were not statistically different from those of control rats during the 3 hr investigation. 3. It was concluded that in rats, CS homogenates did not decrease the serum mineral levels under the present conditions.