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  • Title: Effect of acute and chronic renal denervation on renal function after release of unilateral ureteral obstruction in the rat.
    Author: Wilson DR, Honrath U, Sole M.
    Journal: Can J Physiol Pharmacol; 1979 Jul; 57(7):731-7. PubMed ID: 487282.
    Abstract:
    The role of the renal nerves in determining renal function after relief of 24-h unilateral ureteral obstruction (UUO) was studied using clearance techniques in anaesthetized rats. Acute renal denervation during the first 1--2 h after relief of UUO resulted in a significant increase in glomerular filtration rate (GFR), renal plasma flow (RPF), urine flow, and sodium and potassium excretion, changes which were not seen in the sham-denervated postobstructive kidney. Acute denervation of sham-operated normal kidneys caused a similar natriuresis and diuresis but with no change in GFR or RPF. Chronic renal denervation 4--5 days before UUO denervated postobstructive controls, while chronic denervation alone was associated with a significantly higher urine flow and sodium excretion rate from the denervated kidney. The effectiveness of renal denervation was confirmed by demonstrating marked depletion of tissue catecholamines in the denervated kidney. It was concluded that renal nerve activity plays a significant but not a major role in the functional changes present after relief of UUO. Chronic renal denervation did not protect against the functional effects of unilateral ureteral obstruction.
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