Oncel Mufide, Kıyıcı Aysel, Onen Serife
Department of Biochemistry, Faculty of Medicine, Mevlana University, Konya, Turkey.
Department of Internal Medicine, Beyhekim State Hospital, Konya, Turkey.
J Clin Lab Anal. 2015 Nov;29(6):427-31. doi: 10.1002/jcla.21789. Epub 2014 Jun 21.
A novel ischemia marker named ischemia modified albumin was previously considered as an early marker of myocardial ischemia, however due to recent reports, its contribution was demonstrated in different pathologies such as oxidative stress, diabetes, stroke and cancer. We aimed to investigate the relation between oxidative stress and thyroid dysfunctions determining IMA levels since IMA is closely related with increased oxidative stress.
A total of 88 individuals were participated in this study: 34 cases in hypothyroid, 27 cases in hyperthyroid and 27 cases in euthyroid group. Ischemia-modified albumin levels were measured by albumin cobalt binding test and thyroid hormone levels were determined with electrochemiluminescent method.
Ischemia modified albumin levels were significantly decreased in hypothyroid group compared to hyperthyroid and euthyroid groups (p < 0.001). In hyperthyroid individuals ischemia modified albumin levels were higher compared to euthyroid ones (p < 0.001). Ischemia modified albumin was negatively correlated with TSH levels (r = -0.473, p < 0.001), and positively correlated with FT4 and FT3 levels (r = 0.496, p < 0.001 and r = 0.275, p = 0.010, respectively).
We suggest that albumin adjusted IMA levels are significantly lower in hypothyroid group than hyperthyroid and euthyroid groups.
一种名为缺血修饰白蛋白的新型缺血标志物曾被认为是心肌缺血的早期标志物,然而,根据最近的报道,其在氧化应激、糖尿病、中风和癌症等不同病理状态中也发挥作用。由于缺血修饰白蛋白与氧化应激增加密切相关,我们旨在研究氧化应激与甲状腺功能障碍之间的关系,并测定缺血修饰白蛋白水平。
共有88人参与本研究:甲状腺功能减退组34例,甲状腺功能亢进组27例,甲状腺功能正常组27例。采用白蛋白钴结合试验测定缺血修饰白蛋白水平,用电化学发光法测定甲状腺激素水平。
与甲状腺功能亢进组和甲状腺功能正常组相比,甲状腺功能减退组的缺血修饰白蛋白水平显著降低(p < 0.001)。甲状腺功能亢进个体的缺血修饰白蛋白水平高于甲状腺功能正常个体(p < 0.001)。缺血修饰白蛋白与促甲状腺激素水平呈负相关(r = -0.473,p < 0.001),与游离甲状腺素和游离三碘甲状腺原氨酸水平呈正相关(分别为r = 0.496,p < 0.001和r = 0.275,p = 0.010)。
我们认为甲状腺功能减退组经白蛋白校正的缺血修饰白蛋白水平显著低于甲状腺功能亢进组和甲状腺功能正常组。