[Effect of ultrasound on porphyrin biosynthesis. I. Changes in the levels of proto-, copro- and uroporphyrins after a single exposure to ultrasound]. / Vliianie ul'trazvuka na zven'ia biosinteza porfirinov. I. Izmenenie urovnia proto-, kopro- i uroporfirinov posle odnokratnogo vozdeistviia ul'trazvuka.

Abdominal region of white rat males was exposed to ultrasound with the intensity of 0.2, 0.6 and 1.0 Wt/cm2. 1, 24 and 48 hours after sonication proto-, copro- and uroporphyrines were determined in erythrocytes and excrements, copro- and uroporphyrines in urea. Single ultrasonic exposure does not affect the biosynthesis of uro- and coproporphyrines in gialoplasm, however, it results in the change of their excretion with excrements and urea. Biosynthesis of protoporphyrine IX which is the final stage of haemoglobin biosynthesis is changed under the effect of ultrasonic energy.

[Ultrasonic effect on synthesis and excretion of porphyrines]. / Vliianie ul'trazvuka na sintez i Vydelenie porfirinov.

A ten-fold sequential action of supersound on rats results in disturbances in synthesis of protoporphyrine IX and its excretion respectively; the level of protoporphyrine in erythrocytes and feces is reduced. Redistribution of porphyrines in erythrocytes is detected; the control level of coproporphyrines being retained; a higher initial content of protoporphyrine IX drops due to an increase in a relatively low level of porphyrines.