Recovery of renal lactate dehydrogenase (LDH) isoenzyme pattern after obstruction relief in experimental hydronephrosis.

The release of ureteral occlusion leads to a progressive recovery in LDH isoenzyme pattern with gradual increase of anodic fractions and decrease of middle and cathodic ones. Our findings demonstrate that the recovery is accomplished on the 10–14th day, in agreement with morphological and metabolic observation.