Prevalence of thyroid dysfunction in patients with Type 2 diabetes mellitus and its correlation with insulin resistance and serum markers for autoimmune thyroiditis

Authors

  • Sulagna Sahu Senior Resident, Department of Medicine, B.S. Medical College, Bankura West Bengal
  • Soumya Kanti Dutta RMO Cum Clinical Tutor, Department of Medicine, B.S. Medical College, Bankura West Bengal
  • Shib Shankar Kuiri RMO Cum Clinical Tutor, Department of General Surgery, B.S. Medical College, Bankura West Bengal
  • Mintu Mohan Nandi Assistant Professor, Department of General Surgery, B.S. Medical College, Bankura West Bengal
  • Pranay Kabiraj Post Graduate Trainee, Department of General Surgery, B.S. Medical College, Bankura West Bengal
  • Utpal De Professor and Head, Department General Surgery, B.S. Medical College, Bankura West Bengal

DOI:

https://doi.org/10.3126/ajms.v6i6.12603

Keywords:

Thyroid disorder, Type-2 Diabetes, Insulin resistance

Abstract

Background: The term “THYROID DIABETES” was coined in early literature to depict the influence of thyroid hormone excess in deterioration of glucose control. Although autoimmune thyroid disease is more prevalent in Type1 Diabetes mellitus as a result of their common origin, the prevalence of hypothyroidism and hyperthyroidism is supposed to be similar to that of general population in patient with type2 DM. The purpose of the study was to evaluate the prevalence of thyroid dysfunction in patients with type2 diabetes mellitus and to correlate thyroid abnormalities with insulin resistance and serum markers for autoimmune thyroiditis.

Methods: 120 cases of type2 diabetes mellitus patients satisfying WHO criteria without pre-existing thyroid disease were included in the study. Thyroid function test, fasting serum insulin was done.HOMA-IR & HOMA-B (HOMA-Homeostatic model assessment) was calculated. Serum antithyroid peroxidase anibody (anti-TPO) and antithyroglobulin antibodies (anti-TG) and ANA were done.

Results: Prevalence of thyroid dysfunction in type2 diabetes mellitus was 28.33% according to our study, which included overt hypothyroidism (15%), subclinical hypothyroidism (8.33%), secondary hypothyroidism (0.83%), overt hyperthyroidism (1.67%) and subclinical hyperthyroidism (2.5%). Anti TPO and anti TG antibodies were elevated in 62.07% cases of hypothyroidism, 40% cases of hyperthyroidism and 6.9% euthyroid cases of type2 DM. Anti TPO and antiTG antibodies were significantly raised in type2DM patient with hypothroidism than that of euthyroid (p value<0.0001). Compared to euthyroid diabetics, hypothyroid cases had lower values of insulin resistance markers like fasting insulin, HOMA-IR and HOMA-B. Hyperthyoid cases had higher values.

Conclusion: Hyperthyroid diabetics have higher insulin resistance as fasting insulin, HOMA-IR, HOMA-B showed negative correlation with TSH. (p value<0.05).

DOI: http://dx.doi.org/10.3126/ajms.v6i6.12603

Asian Journal of Medical Sciences Vol.6(6) 2015 33-38

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Author Biography

Shib Shankar Kuiri, RMO Cum Clinical Tutor, Department of General Surgery, B.S. Medical College, Bankura West Bengal

Department Of General Surgery,Bankura Sammilani Medical College,Bankura.

Rank-R.M.O. Cum Clinical Tutor

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Published

2015-06-16

How to Cite

Sahu, S., Dutta, S. K., Kuiri, S. S., Nandi, M. M., Kabiraj, P., & De, U. (2015). Prevalence of thyroid dysfunction in patients with Type 2 diabetes mellitus and its correlation with insulin resistance and serum markers for autoimmune thyroiditis. Asian Journal of Medical Sciences, 6(6), 33–38. https://doi.org/10.3126/ajms.v6i6.12603

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Original Articles