[Neural regulation of substance transport in the kidney].

The denervation diuresis and natri uresiswere manifest in anesthetized dog and rats after acute or chronic renal sympathectomy with no changes in RBF, GFR or in their intrarenal distribution. Micropuncture showed the principal site of action of renal denervation on to be within the proximal tubule. The unchanged relationship between reabsorbed sodium and consumed oxygen suggested that active transport of Na decreased on denervation. No causal relationship between denervation natri uresis and decreased release of renin was revealed. As tubular transport of d-glucose, inorganic phosphate, para--aminohippurate and of uric acid was suppressed by the sympathectomy, the renal sympathetic activity seem to be able to regulate the proximal tubular transport functions.