In experiments on 32 white nonlinear male rats weighing 0.16-0.18 kg on a hyposodium diet, the diagnostic possibilities of integrative correlation-optical study of the cortex, medullary area and papilla of the kidneys compared to the functional and biochemical state of the kidneys during the formation tubulo-interstitial syndrome on the 30th day of the polyuric stage of sublimate nephropathy. The formation of tubulo-interstitial syndrome showed the greatest increase in the average phase shift of the crystalline substance in the papilla of the kidneys in 7.44 times, in second place increased the excess orientation of the crystalline substance in the renal cortex by 6.73 times in third place asymmetry of phase shift medullary area of the kidneys 6.07 times, which were much more sensitive than the study of functional and biochemical state of the kidneys in the formation of tubulo-interstitial syndrome with inhibition of succinate dehydrogenase activity in the renal cortex of the kidneys 3.60 times, in second place was an increase in oxyproline in the renal cortex as a marker of collagenogenesis in2,03 times and in third place inhibition of fibrinolytic activity of urine by 1.84 times.
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