Parathyroid hormone effect on chicken renal brush-border membrane phosphate transport.

Renal clearance studies showed that parathyroidectomy (PTX) stimulated renal PO4 reabsorption within 90 min in 3-wk-old chicks. Subsequent parathyroid hormone (PTH) infusion caused net PO4 secretion. Kidneys were taken for brush-border membrane (BBM) preparations 3 h after PTX or sham operations and 1 h after PTH or saline injections, thus yielding four… CONTINUE READING