effect of ultrasound exposure on erythrocytes sedimentation rate

In the present work, the effect of continuous wave [CW] ultrasound with different frequencies and different intensities on erythrocytes sedimentation rate [ESR] have been studied in vitro. Ultrasound exposure to erythrocytes suspended in saline leads to a change in the sedimentation rate of the cells relative to control. It was found that the change in ESR is a function of ultrasonic intensity and frequency as well as the sonification time. This behavior may be attributed to some changes in the cells due to the nonthermal [mechanical] mechanisms of interaction between ultrasonic waves and the suspended cells

role of ultrasound exposure in erythrocytes defense against hemolysis

In the present work, the effect of continuous wave ultrasound with different frequencies and different intensities on erythrocytes defense against hemolysis has been studied. Ultrasound exposure to erythrocytes suspended in saline during hemolysis caused with low different concentrations of HC1, resulted in deceleration of hemolysis relative to control value of HC1. The calculated hemolysis parameter: relative hemolysis rate [H.R][R], showed a critical concentration of KCl below which the hemolysis is decelerated, which means that the ultrasound plays a role in protecting erythrocytes from hemolysis. Also, ultrasound caused some mechanical changes in erythrocytes, and these changes were frequency and intensity dependant