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Rectal potential difference (pd) is directly related to the plasma aldosterone concentration, and rises when aldosterone is stimulated by sodium deprivation.
Abstract. The rectal potential difference (PD) was measured in 27 patients with Crohn's disease, and in 16 subjects without gastrointestinal disease to establish a...
Rectal Potential Difference and the Functional Expression of CFTR in the Gastrointestinal Epithelia in Cystic Fibrosis Mouse Models. Pediatric Research, 2007
Title: Supplement 1: Rectal potential difference in wt and APCMin/+ mice under control conditions (RPD) and changes induced by rectal perfusion of amiloride (20 µM...