Related Experiment Video
Updated: Jul 23, 2026

Surgical Techniques for Catheter Placement and 5/6 Nephrectomy in Murine Models of Peritoneal Dialysis
Published on: July 19, 2018
Peptide hormones: renal handling and dialysis therapy
Abstract:
For uraemic diabetics the loss of insulin by dialysis with highly permeable membranes has clinical relevance. We investigated renal handling (in isolated perfused rat kidneys) of insulin and c-peptide and their dialytic clearances and sieving coefficients using cuprophan and polyacrylonitrile membranes. Rat kidney catabolic clearances were five times (insulin) and 12 times (c-peptide) greater than urinary clearances and twice inulin clearance. Cuprophan membrane was found to be virtually impermeable for both hormones. Polyacrylonitrile sieving coefficients were 0.3 (insulin) and 0.4 (c-peptide). Both hormones are filtered as well as tubularly and peritubularly catabolised in the kidney. Insulin removal during dialysis and haemofiltration with polyacrylonitrile membranes has to be considered in treating uraemic diabetics.
Related Concept Videos
Dialysis
Introduction to Urinary System
The kidneys are bean-shaped organs located in the retroperitoneal space, on either side of the vertebral column, between the T12 and L3 vertebrae. They are partially protected by the rib cage and surrounded by perirenal fat, which provides cushioning. They are responsible for urine formation and play critical roles in regulating blood pressure, electrolyte levels, and hormone production. The ureters...
Dialysis
Acute kidney injury develops suddenly and can be caused by pre-renal causes (e.g., hypovolemia, shock), intrinsic renal causes (e.g., acute tubular necrosis), or post-renal causes (e.g., urinary obstruction). In contrast, chronic renal failure progresses gradually over time and is often...
Renal Drug Excretion: Tubular Secretion
Acute Kidney Injury V: Interprofessional Care
Chronic Kidney Disease III: Interprofessional Care

