Abstract
The change in the adrenoreactive properties of membrane and cellular structures under the influence of catecholamines makes it possible to consider the beta-adrenergic reactivity of the erythrocyte membrane (-ARM) as a systemic indicator of the organism's adrenoreactivity. To assess adrenoreactivity, a technique is used based on a quantitative assessment of the degree of inhibition of hypoosmotic hemolysis of erythrocytes in vitro in the presence of the beta-blocker propranolol. The article presents data on the comparison of spectrophoto- and colorimetric determination of erythrocyte membrane beta-adrenoreactivity based on the registration of erythrocyte hemolysis with digital signal processing. A smartphone was used to register the images of the analyzed samples. Photography was carried out in a special box under standard lighting conditions. The chromaticity of the obtained images was evaluated using the Photoshop program within the RGB color model intended for computer color rendering. The obtained RGB values were used for quantitative determinations. The study was performed on 20 blood samples of patients suffering from bronchial asthma. The discrepancy between the results of determining -ARM using the colorimetric and spetrophotometric methods was no more than 5.6%, which indicates the possibility of replacing the spectrophotometer with image registration in digital format using software.
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