PARATHYROID TRANSPLANTS IN RATS

Parathyroid Transplants in Rats

1. A reliable method of parathyroid grafting in rats, and of assessing the functional state of such grafts in terms of blood calcium has been devised. 2. Parathyroid homografts between rats of proven genetic diversity may be rejected as promptly as skin; but the majority survive for an indefinite period, there being no intermediate class. 3. Surviving parathyroid grafts in this genetically dive...

Parathyroid autotransplantation in rats having hypoparathyroidism.

Re-implantation techniques of extracted parathyroid tissue were developed in order to prevent temporary hypocalcemia. During thyroid surgery; inadvertently removed or devascularized parathyroid gland is usually implanted in the sternocleidomastoid muscle. In this experimental study using rats with hypoparathyroidism, our aim was to investigate whether the excised parathyroid tissue could be see...

Parathyroid hormone gene expression in hypophosphatemic rats.

Phosphate is central to bone metabolism and we have therefore studied whether parathyroid hormone (PTH) is regulated by dietary phosphate in vivo. Weanling rats were fed diets with different phosphate contents for 3 wk: low phosphate (0.02%), normal calcium (0.6%), normal phosphate (0.3%), and calcium (0.6%); high phosphate (1.2%), high calcium (1.2%). The low phosphate diet led to hypophosphat...

Weight loss in rats following intraventricular transplants of pancreatic islets.

Because of the body's resistance to permanent weight change, obesity remains a major health problem in modern society. It is hypothesized that the regulatory system defending body weight utilizes pancreatic insulin as an indicator of adiposity to the brain. To take advantage of this negative feedback system, we transplanted neonatal (experiment 1) or adult (experiment 2) pancreatic islets conta...

Parathyroid hormone as a causative factor of primary non-function in renal transplants.