The technic of stop-flow analysis has been used to localize the site of renal sodium reabsorption which is affected by adrenalectomy and aldosterone. Following adrenalectomy, the distal tubule was not able to reduce sodium concentration to the low value achieved during stop-flow in normal dogs. Following aldosterone administration this distal reabsorptive capacity was restored. No conclusion could as yet be made regarding the effects of aldosterone on the proximal tubule.
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Vander et al. (1958) studied this question.