Fig. 2.
Effect of bath norepinephrine and subsequent addition of luminal ANG II on mTAL chloride transport. mTAL were perfused in vitro and the rate of chloride transport (JCl) was measured under basal conditions. After the control period, 10−6 M norepinephrine (Norepi) was added to the bathing solution, which caused an increase in chloride transport (P < 0.05). Addition of luminal 10−8 M ANG II in the presence of bath Norepi resulted in a further increase in chloride transport (P < 0.05). Dashed lines represent chloride transport in individual tubules, the dark line represents the mean and SE of all tubules.