ارتباط بین محتوای اسیدهای چرب ذرات LDL با بار الکتریکی آنها در بیماران شریان کرونری
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Abstract:
Background: Low density lipoprotein (LDL) particles have shown to be heterogeneous structures with distinctive electrical charges. Alteration in the fatty acids content of the LDL particles is known to affect their structural features, electrical charges, and ultimately physiologic properties and, in this way, may play a role in the pathology of coronary artery disease (CAD). On the basis of evidences, in the present study, the relationship of fatty acids content of LDL particles and their electrical charge was assessed in patients with CAD in comparison with control subjects. Methods: In the current case- control study, from subjects who referred to the Mostafa Khomeini Hospital in Ilam during a time period from December 2013 to October 2014, 40 CAD patients and 40 control subjects were selected based on the clinical and angiographic parameters. The fatty acids content and electrical charges of LDL particles were measured by using a gas chromatography system, equipped with a flame ionization detector GC-FID, Acme 6000 M (Young Lin Co., Korea) as well as a Zetasizer (Malvern Instruments Ltd., UK), respectively. Results: In the present study, CAD patients and control subjects were matched for age, sex, and body mass index (BMI). The electrical charge amounts of LDL particles in the patients group was significantly lower than those in the control subjects (P= 0.0001). There was an inverse correlation between the electrical charge amounts of the LDL particles and the saturated fatty acids as well as linoleic acid contents of them in CAD patients group. However, we found a direct correlation between the unsaturated fatty acids (monounsaturated fatty acids and some of the polyunsaturated ones) content of the LDL particles and their electrical charge amounts (P= 0.02). Conclusion: Results of the present study demonstrated that the increased saturated fatty acids as well as the linoleic acid contents of the LDL particles are associated with decreased electrical charge amounts of these particles and this situation may engage in pathogenesis of CAD.
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Journal title
volume 73 issue None
pages 501- 507
publication date 2015-10
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