• Orysia Lishchuk Lviv Danylo Halytsky National Medical University
  • Olesya Kikhtyak Lviv Danylo Halytsky National Medical University
  • Khrystyna Moskva Lviv Danylo Halytsky National Medical University
Keywords: insulin resistance, correlation, Graves’ disease


Aim. The number of patients with endocrine disorders in the world, in particular, Graves’ disease is continuously increasing. Recent studies have determined the fact of insulin resistance in thyroid disorders. On the one hand, numerous researches prove correlation of hypothyroidism with arterial hypertension, ischaemic heart disease and lipid metabolism disorder, on the other – carbohydrate metabolism disorder and hyper-sympathicotonia are closely associated with hyperthyroidism. The subject of the research was to study the correlation of insulin resistance, lipid and carbohydrate metabolism indices in patients with Graves’disease.

Material and Methods. During the study 53 (37 female and 16 male) patients with Graves’ disease with noticed IR have been examined. At the beginning, after 3– and 6-months thyreostatic therapy with insulin sensitizers (metformin or pioglitazone) the following investigations have been performed: assessing thyroid-stimulating hormone levels, free thyroxine and triiodothyronine; assessing glycated haemoglobin, glucose, C-peptide and fasting insulin as primary IR markers; calculating НОМА-IR index for analysing tissue sensitivity to insulin; calculating НОМА-β index for evaluating the functional capacity of β-cells of islets of Langerhans; measuring Caro indices to monitor hyperinsulinemia, measuring total cholesterol level, low-density lipoproteins, very-low-density lipoproteins, high-density lipoproteins , triglycerides, for analysing IR in relation to lipid metabolism.

Results. The research results found out that free thyroid hormones and thyroid-stimulating hormone are closely related to lipid metabolism. Thus, thyroid-stimulating hormone was characterized as having direct correlation with low-density lipoproteins, while the free thyroxine inversely correlated with total cholesterol, low-density lipoproteins, and high-density lipoproteins. The free triiodothyronine negatively correlated with high-density lipoproteins. The research has also determined the direct correlation between insulin and free thyroxine, as well as free triiodothyronine in patients with diffuse toxic goitre.

Conclusions. The study proves the presence of insulin resistance in patients with Graves’ disease that generates interest to further study of the changes in insulin sensitivity, relation of insulin resistance to thyroid-stimulating hormone, thyroid hormones and looking for the ways to correct these disorders.


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Author Biographies

Orysia Lishchuk, Lviv Danylo Halytsky National Medical University

Department of Endocrinology

Olesya Kikhtyak, Lviv Danylo Halytsky National Medical University

Department of Endocrinology

Khrystyna Moskva, Lviv Danylo Halytsky National Medical University

Department of Endocrinology


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