fractional reabsorption of sodium by the superficial late proximal tubule decreased from 45.7 +/- 5.6 to 34.2 +/- 5.4 % , p less than 0.05 , and by the proximal tubule and descending limb of henle 's loop of deep nephrons it decreased from 73.9 +/- 2.9 to 57.2 +/- 6.3 % , p less than 0.05 ( n = 8 rats ) .
C0227657
descending limb of henle 's loop of
C0027713
nephrons