Mechanical simulation of renal pelvic wall peristalsis in the rat.
A urinary concentrating defect was induced in Munich-Wistar rats by removing the renal pelvis from 1 kidney. This defect was partially corrected by crudely simulating the actions of pelvic wall peristalsis with a mechanical system that cyclically compressed the exposed renal papilla.
D000818:Animals; D005260:Female; D007671:Kidney Concentrating Ability; D007679:Kidney Medulla / Q000502:physiology*; D007682:Kidney Pelvis / Q000502:physiology*; D009994:Osmolar Concentration; D051381:Rats; D014556:Urine