ИССЛЕДОВАНИЕ ЖИРНОКИСЛОТНОГО СОСТАВА АТЕРОСКЛЕРОТИЧЕСКИХ БЛЯШЕК
Abstract
Relevance. Assessing the fatty acid composition of atherosclerotic plaques may be of interest from the point of view of understanding the processes of plaque formation, their development and stability, as well as for understanding the pathogenesis of atherosclerosis in general. The article presents the results of an analysis of fatty acids of atherosclerotic plaques obtained during endarterectomy of patient arteries and presented to the Institute of Bioorganic Chemistry. Methods. The studies were carried out using high-performance liquid chromatography and mass spectrometry methods. Results. The analysis revealed that high levels of 11-hydroxyeicosatetraenoic acid and 15- hydroxyeicosatetraenoic acid were found in all atherosclerotic plaques (n=10), low levels of 9- oxooctadecanoic acid were present in all samples, while 13-oxooctadecadienoic acid was present in only 4 of 10 plaque samples. Of interest was the identification of two previously unidentified compounds in atherosclerotic plaque: 11-oxoeicosatetranoic acid in 9 of 10 samples and 5,6- dihydroxyeicosatetranoic acid in 3 samples. In solutions of trypsin and pepsin, high levels of stearic and oleic acids were detected in plaques, high levels of which, apparently, can induce an atherosclerotic process. Conclusions. The study of the fatty acid composition of plaques as biomarkers of atherosclerosis and targets for therapeutic interventions should be considered promising.