Department of Medical Biochemistry, Wroclaw Medical University, 50-368 Wroclaw, Poland.
Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-422 Wroclaw, Poland.
Biomolecules. 2021 Jun 25;11(7):946. doi: 10.3390/biom11070946.
Atherosclerosis is a multifactorial disease, for which the etiology is so complex that we are currently unable to prevent it and effectively lower the statistics on mortality from cardiovascular diseases. Parallel to modern analyses in molecular biology and biochemistry, we want to carry out analyses at the level of micro- and macroelements in order to discover the interdependencies between elements during atherogenesis. In this work, we used the Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES) to determine the content of calcium, magnesium, iron, copper, chromium, zinc, manganese, cadmium, lead, and zinc in the aorta sections of people who died a sudden death. We also estimated the content of metalloenzymes MMP-9, NOS-3, and SOD-2 using the immunohistochemical method. It was observed that with the age of the patient, the calcium content of the artery increased, while the content of copper and iron decreased. Very high correlations (correlation coefficient above 0.8) were observed for pairs of parameters in women: Mn-Ca, Fe-Cu, and Ca-Cd, and in men: Mn-Zn. The degree of atherosclerosis negatively correlated with magnesium and with cadmium. Chromium inhibited absorption of essential trace elements such as Cu and Fe due to its content being above the quantification threshold only if Cu and Fe were lower. Moreover, we discussed how to design research for the future in order to learn more about the pathomechanism of atherosclerosis and the effect of taking dietary supplements on the prevalence of cardiovascular diseases.
动脉粥样硬化是一种多因素疾病,其病因非常复杂,以至于我们目前既无法预防它,也无法有效降低心血管疾病的死亡率。除了在分子生物学和生物化学方面进行现代分析之外,我们还希望在微观和宏观元素层面进行分析,以发现动脉粥样形成过程中元素之间的相互关系。在这项工作中,我们使用电感耦合等离子体发射光谱仪(ICP-OES)来测定突然死亡者的主动脉切片中钙、镁、铁、铜、铬、锌、锰、镉、铅和锌的含量。我们还使用免疫组织化学方法来估计金属酶 MMP-9、NOS-3 和 SOD-2 的含量。结果观察到,随着患者年龄的增长,动脉中的钙含量增加,而铜和铁的含量减少。在女性中,观察到参数对 Mn-Ca、Fe-Cu 和 Ca-Cd 的相关性非常高(相关系数高于 0.8),而在男性中,Mn-Zn 之间也存在高度相关性。动脉粥样硬化的程度与镁和镉呈负相关。只有当铜和铁的含量较低时,铬的含量才会超过定量阈值,从而抑制对铜和铁等必需微量元素的吸收。此外,我们还讨论了如何设计未来的研究,以便更深入地了解动脉粥样硬化的发病机制以及补充膳食对心血管疾病患病率的影响。
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