Ammonium and bicarbonate transport in rat outer medullary collecting ducts.


Previous in vitro studies have demonstrated spontaneous bicarbonate absorption in the outer stripe portion of the rat outer medullary collecting duct (OMCD) and inner medullary collecting duct, but net acid transport has not been studied in the inner stripe of the rat OMCD (OMCDIS). When we perfused isolated OMCDIS segments with identical bath and perfusate… (More)