Function of the parathyroid gland in serum calcium regulation in the newt, Tylototriton andersoni Boulenger

Parathyroidectomy in juvenile Tylototriton andersoni brought about hypocalcemia 5 and 10 days after the operation. However, 30 days later serum Ca concentrations returned to a nearly normal level. Serum Na concentrations did not change after parathyroidectomy. Hypocalcemia in parathyroidectomized Cynops pyrrhogaster, a newt, was partially corrected by the implantation of the parathyroid glands of T. andersoni. Mammalian parathyroid extracts seem to be effective in increasing serum Ca concentration in C. pyrrhogaster and T. andersoni. These results suggest that the role of the parathyroid gland of T. andersoni in serum Ca homeostasis is very similar to that of C. pyrrhogaster.