Fig. 4.

Effect of prenatal low-protein diet and prenatal dexamethasone on medullary thick ascending limb (mTAL) chloride transport. mTAL were dissected and perfused in vitro from adult rats whose mothers were administered a normal protein diet, a low-protein diet (6%), or prenatal dexamethasone (0.2 mg/kg body wt) by intraperitoneal injection daily between 15th and 18th day of gestation. The 6-wk-old offspring of mothers that received prenatal dexamethasone or a low-protein diet had a significant increase in the rate of mTAL chloride transport. *P < 0.05 vs. Control.