Altered levels of fructosamine and glycated haemoglobin (HbA1c) in thyroid disorder patients without diabetes mellitus-A cross sectional study

Authors

  • G.Sajjan Sangamma
  • S. Sonoli Smita
  • Naveen Angadi

DOI:

https://doi.org/10.51248/.v41i1.532

Keywords:

Fructosamine, glycated haemoglobin, thyroid disorder

Abstract

Introduction and Aim:Co-existence of thyroid disorder and Diabetes Mellitus is no more a coincidence. The cause and impact of thyroid disorder on glucose levels or vice versa is a well -established fact.Hence in this study we wanted to know the glycemic status by estimating fructosamine and glycated hemoglobin of the newly diagnosed thyroid patients without diabetes mellitus. The aim of the study was to estimatefructosamine and glycated hemoglobin levels in newly diagnosed subclinical hypothyroid, clinical hypothyroid and hyper thyroid patients without diabetes mellitus.

Material and Methods:Twenty cases of subclinical hypothyroid,30 cases of hypothyroid,30 cases of hyperthyroid  and 30 healthy participantswere included in the study. Fasting plasma glucose and thyroid profile was estimated in suspected cases of thyroid disorder and participants with fasting plasma glucose (FPG) more than 110 mg/dL were excluded from the study.The participants who were eligible for an inclusion criterion were estimated for fructosamine by nitro bluetetrazolium, (NBT) method andion-exchange high performance liquid chromatography was for glycated hemoglobin.

Results:In Subclinical hypothyroid group there was a statistically significant increase in the mean fasting plasma glucose, fructosamine and glycated hemoglobin levels when compared with the controls.There was a significant increase in the mean fasting plasma glucose,fructosamine and glycated hemoglobin(HbA1c) levels in clinical hypothyroid group when compared with the controls.Pairwise comparison of FPG (p=0.001), fructosamine (p=0.001) and HbA1c (p=0.001) levels with controls showed a statistically significant difference.In clinical hyperthyroid group the mean FPG and HbA1c levels were high and low fructosamine levels when compared with the controls by one way ANOVA.Pairwise comparison of FPG (p=0.001), fructosamine levels (p=0.001) and HbA1c (p=0.001) levels (p=0.001) with controls showed a statistically significant difference.

Conclusion: Unidentified hyperglycemia could have an impact on thyroid disorder leading to its complication.Hence a systematic approach to fructosamine testing(monitor the plasma glucose concentration over 2–3 weeks) as a routine test in thyroid disorder patients, needs to be considered.Also the management of hyperglycemia in thyroid patients without diabetes mellitus may prove  to be beneficial.

 

Author Biographies

G.Sajjan Sangamma

Department of Biochemistry, KLE Academy of Higher Education and Research,J.N.Medical College,Nehru Nagar,Belagavi,590010, Karnataka, India

S. Sonoli Smita

Department of Biochemistry, KLE Academy of Higher Education and Research,J.N.Medical College,Nehru Nagar,Belagavi,590010, Karnataka, India

Naveen Angadi

Department of Medicine, KLE Academy of Higher Education and Research,J.N.Medical College,Nehru Nagar,Belagavi,590010, Karnataka, India

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Published

2021-04-03

How to Cite

1.
Sangamma G, Sonoli Smita S, Angadi N. Altered levels of fructosamine and glycated haemoglobin (HbA1c) in thyroid disorder patients without diabetes mellitus-A cross sectional study. Biomedicine [Internet]. 2021Apr.3 [cited 2021Apr.14];41(1):46-51. Available from: https://biomedicineonline.org/index.php/home/article/view/532

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