Metabolic Changes Associated with Endo- Crine Activity and the Reproductive Cycle in Xenopus Laevis Ii. the Effect of Hypophysectomy on the Potassium Content of the Serum
نویسنده
چکیده
THE ease and rapidity with which the whole pituitary or part of the gland can be removed in Xenopus laevis, the low post-operative mortality and the fact that the animals survive the operation for more than two years, suggested an investigation into the relation between the pituitary and several metabolic variables. In a previous paper (Shapiro and Zwarenstein, 1933) the effect of hypophysectomy on the calcium content of the serum was reported. The prominent part played by the pituitary in regulating the water-salt content of the tissues was suggested by the work of Stehle (1926) on the diuretic-antidiuretic action of pituitary extracts. In Xenopus the low level of serum calcium which occurred as a result of pituitary removal was never associated with tetanic symptoms. These considerations and the well-known antagonism between calcium and potassium in all biological phenomena suggested an enquiry into the effects of hypophysectomy on serum potassium.
منابع مشابه
Metabolic Changes Associated with Endo- Crine Activity and the Reproductive Cycle in Xenopus Laevis I. the Effects of Gonadectomy and Hypophysectomy on the Calcium Content of the Serum
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Metabolic Changes Associated with Endo- Crine Activity and the Reproductive Cycle in Xenopus Laevis Iii. Changes in the Calcium Content of the Serum Associated with Captivity and the Normal Reproductive Cycle by H. Zwarenstein and H. A. Shapiro
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