The Association Zinc Alpha 2 Glycoprotein levels with newly diagnosed of thyroid dysfunction in Iraqi women

Background: A recently discovered lipolytic adipokine called zinc-α2-glycoprotein (ZAG) has been linked to the control of lipid and glucose metabolism in a variety of metabolic diseases. Studies in vivo and in vitro indicate that thyroid hormones (THs) increase the production of ZAG in hepatocytes. Yet, there is little information on how TH might interact with ZAG in a human hyperthyroidism or hypothyroidism model. This study aimed to assess the effect of THs on serum ZAG and its relation to lipid disorder in Iraqi women, who have recently been diagnosed with thyroid dysfunction. Materials and Methods: A case–control study was performed at the Department of Chemistry and Biochemistry/Medicine College in cooperation with National Diabetes Center/University of Mustansiriyah from January 2021 to February 2022. One hundred thirty-two samples were included in this study, all participants are women aged between 21 and 54 years, which were divided into three groups: (44) subjects serve as a control group, (44) patients with newly diagnosed hyperthyroidism, and (44) patients with newly diagnosed hypothyroidism. Results: The results of the current study had shown that the levels of serum ZAG elevated in the patients who have been newly diagnosed with hyperthyroidism (P ≤ 0.001) and decreased in patients with hypothyroidism (P ≤ 0.001) when compared with control. Patients with hyperthyroidism have low levels of cholesterol, triglycerides (TG), high-density lipoprotein (HDL), and very low-density lipoprotein (VLDL), while patients with hypothyroidism have higher levels of cholesterol, TG, HDL, and VLDL. Nonetheless, there were no significant correlations between the ZAG and TH with lipid profile in both hyperthyroidism and hypothyroidism. Conclusion: ZAG levels were elevated in patients with hyperthyroidism and decreased in patients with hypothyroidism. There is no correlation between the ZAG and TH with lipid profile in both hyperthyroidism and hypothyroidism.