The Effect of Hormone Replacement Treatment on Thrombin-Activatable Fibrinolysis Inhibitor Activity Levels in Patients with Hashimoto Thyroiditis

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概要

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• Background Hypothyroid patients have increased risk of cardiovascular diseases, and several mechanisms have been considered responsible in these patients. Although, a few studies demonstrated fibrinolytic system changes in hypothyroid patients, there is no study demonstrating TAFI activity in hypothyroid Hashimoto's thyroiditis patients. The aim of this study was to evaluate TAFI activity status and the effect of L thyroxin hormone replacement treatment on fibrinolytic system in this patient group. Methods Thirty patients with hypothyroid Hashimoto thyroiditis (all were female and the mean age was 44.3±14.6 years, ranging between 17-68 years) were enrolled to study. Their TSH levels were high (27.2±5.2 mU/L) and Free T3 and Free T4 hormone levels were below than normal. In this study, euthyroid 20 healthy volunteers (mean age 32.5±4.9 years, range 26-42 years) were adopted. L-thyroxin treatment before and after TAFI activity levels were measured in patients. Results In the control group, TAFI activity levels were 9.6±0.4 μg/mL. In patients with L-thyroxin before and after treatment there were high levels of TAFI activity value of 14.2±0.9 and 12.9±0.8 μg/mL, respectively. In the patient group, after L-thyroxin treatment TAFI activity levels were decreased but they were not statistically significant (p=0.187). When compared to the control group, high levels of TAFI activity were observed in the patient group (p<0.0001). Conclusion Our data demonstrated that in Hashimoto thyroiditis, patients have high levels of TAFI activity compared to controls. A high level of TAFI activity suggests fibrinolytic deficit or thrombotic tendency in hypothyroid patients and this deficit is persistent after L-thyroxine replacement.

• 社団法人 日本内科学会の論文

著者

• Yilmaz Candeger

  Division Of Endocrinology And Metabolism Department Of Internal Medicine University Of Ege

• Karadeniz Muammer

  Division Of Endocrinology And Metabolism Department Of Internal Medicine University Of Ege

• Yilmaz Candeger

  Division of Endocrinology and Metabolism, Department of Internal Medicine, Ege University Hospital

• Cetinkalp Sevki

  Division of Endocrinology and Metabolism, Department of Internal Medicine, Ege University Hospital

• Tobu Mahmut

  Division of Hematology, Department of Internal Medicine, Ege University Hospital

• Buyukkeçeci Filiz

  Division of Hematology, Department of Internal Medicine, Ege University Hospital

• Karadeniz Muammer

  Division of Endocrinology and Metabolism, Department of Internal Medicine, Ege University Hospital

関連論文

• Does Chernobyl Accident Have Any Effect on Thyroid Cancers in Turkey? a Retrospective Review of Thyroid Cancers from 1982 to 2006
• The Effect of Hormone Replacement Treatment on Thrombin-Activatable Fibrinolysis Inhibitor Activity Levels in Patients with Hashimoto Thyroiditis

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