Evaluation of Serum Zinc, Copper Level and their Correlation with Cu/Zn Ratio and FT3/FT4 Ratio in Hypothyroidism
Introduction: Hypothyroidism is a condition characterised by deficiency of thyroid hormones due to defect in hormone synthesis pathway or development of resistance at the tissue level. It has been observed that trace elements may influence hormonal function at several levels. Various studies suggest...
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
JCDR Research and Publications Private Limited
2019-07-01
|
Series: | Journal of Clinical and Diagnostic Research |
Subjects: | |
Online Access: | https://jcdr.net/articles/PDF/12992/41685_CE[Ra1]_F(SL)_PF1(AG_SHU)_PFA(KM)_PB(AG_OM)_PN(SL).pdf |
id |
doaj-441e9e486ffb4ce899e28bf642a89920 |
---|---|
record_format |
Article |
spelling |
doaj-441e9e486ffb4ce899e28bf642a899202020-11-25T03:03:26ZengJCDR Research and Publications Private LimitedJournal of Clinical and Diagnostic Research2249-782X0973-709X2019-07-01137BC08BC1010.7860/JCDR/2019/41685.12992Evaluation of Serum Zinc, Copper Level and their Correlation with Cu/Zn Ratio and FT3/FT4 Ratio in HypothyroidismShahnaz Khatun0GS Santhini1E Malligai2HR Vinoda Kumar3Nutritionist, Department of Biochemistry, Chettinad Academy of Research and Education, Chennai, Tamil Nadu, India.Assistant Professor, Department of Biochemistry, Chettinad Academy of Research and Education, Chennai, Tamil Nadu, India.Professor and Head, Department of Biochemistry, Chettinad Academy of Research and Education, Chennai, Tamil Nadu, India.Tutor, Department of Biochemistry, Chettinad Academy of Research and Education, Chennai, Tamil Nadu, India.Introduction: Hypothyroidism is a condition characterised by deficiency of thyroid hormones due to defect in hormone synthesis pathway or development of resistance at the tissue level. It has been observed that trace elements may influence hormonal function at several levels. Various studies suggest that reduction in zinc and copper levels adversely affect the endocrine system. Aim: To determine the serum zinc and copper levels in hypothyroidism and its effect on the progression of hypothyroidism. Materials and Methods: The present case-control study was conducted among 80 hypothyroid patients and 80 apparently healthy individuals aged 18-55 years. Serum zinc (Zn) and copper (Cu) were measured by the colorimetric assay using semiautomated analyser. Free triiodothyronine (T3), free thyroxine (T4) and Thyroid stimulating hormone (TSH) were measured using the chemiluminiscence immunoassay method. Individual parameters by independent sample t-test and correlation was analysed by Pearson’s correlation test. The p-value <0.05 was considered significant. Results: No statistical difference was observed in the BMI among the two groups. Zinc levels in hypothyroid group (85.21 µg/dL) were significantly (p-value=0.002) lower as compared to the control group (100.83 µg/dL). However, copper levels in hypothyroid group (151.1 µg/dL) were increased as compared to the control group (140.5 µg/dL) but the difference was not statistically significant (p=0.09). In the hypothyroid patients, the Copper to Zinc (Cu/Zn) ratio was 1.7/1, which was higher than that of control group 1.3/1 (p-value=0.001). Zinc was found to be negatively correlated with TSH (r-value=-0.248; p-value=0.033) and positively correlated with FT4 (r-value=0.374; p-value=0.001). Cu/Zn ratio was found to have a weak positive correlation with FT3/FT4 ratio (r=0.0875; p-value=0.45). Conclusion: This study proved the presence of imbalance of trace elements like zinc and copper among hypothyroid patients and thereby emphasises on their importance in maintenance of thyroid homeostasis.https://jcdr.net/articles/PDF/12992/41685_CE[Ra1]_F(SL)_PF1(AG_SHU)_PFA(KM)_PB(AG_OM)_PN(SL).pdfhypothyroidhormone homeostasismicronutrientstrace elements |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Shahnaz Khatun GS Santhini E Malligai HR Vinoda Kumar |
spellingShingle |
Shahnaz Khatun GS Santhini E Malligai HR Vinoda Kumar Evaluation of Serum Zinc, Copper Level and their Correlation with Cu/Zn Ratio and FT3/FT4 Ratio in Hypothyroidism Journal of Clinical and Diagnostic Research hypothyroid hormone homeostasis micronutrients trace elements |
author_facet |
Shahnaz Khatun GS Santhini E Malligai HR Vinoda Kumar |
author_sort |
Shahnaz Khatun |
title |
Evaluation of Serum Zinc, Copper Level and their Correlation with Cu/Zn Ratio and FT3/FT4 Ratio in Hypothyroidism |
title_short |
Evaluation of Serum Zinc, Copper Level and their Correlation with Cu/Zn Ratio and FT3/FT4 Ratio in Hypothyroidism |
title_full |
Evaluation of Serum Zinc, Copper Level and their Correlation with Cu/Zn Ratio and FT3/FT4 Ratio in Hypothyroidism |
title_fullStr |
Evaluation of Serum Zinc, Copper Level and their Correlation with Cu/Zn Ratio and FT3/FT4 Ratio in Hypothyroidism |
title_full_unstemmed |
Evaluation of Serum Zinc, Copper Level and their Correlation with Cu/Zn Ratio and FT3/FT4 Ratio in Hypothyroidism |
title_sort |
evaluation of serum zinc, copper level and their correlation with cu/zn ratio and ft3/ft4 ratio in hypothyroidism |
publisher |
JCDR Research and Publications Private Limited |
series |
Journal of Clinical and Diagnostic Research |
issn |
2249-782X 0973-709X |
publishDate |
2019-07-01 |
description |
Introduction: Hypothyroidism is a condition characterised by deficiency of thyroid hormones due to defect in hormone synthesis pathway or development of resistance at the tissue level. It has been observed that trace elements may influence hormonal function at several levels. Various studies suggest that reduction in zinc and copper levels adversely affect the endocrine system. Aim: To determine the serum zinc and copper levels in hypothyroidism and its effect on the progression of hypothyroidism. Materials and Methods: The present case-control study was conducted among 80 hypothyroid patients and 80 apparently healthy individuals aged 18-55 years. Serum zinc (Zn) and copper (Cu) were measured by the colorimetric assay using semiautomated analyser. Free triiodothyronine (T3), free thyroxine (T4) and Thyroid stimulating hormone (TSH) were measured using the chemiluminiscence immunoassay method. Individual parameters by independent sample t-test and correlation was analysed by Pearson’s correlation test. The p-value <0.05 was considered significant. Results: No statistical difference was observed in the BMI among the two groups. Zinc levels in hypothyroid group (85.21 µg/dL) were significantly (p-value=0.002) lower as compared to the control group (100.83 µg/dL). However, copper levels in hypothyroid group (151.1 µg/dL) were increased as compared to the control group (140.5 µg/dL) but the difference was not statistically significant (p=0.09). In the hypothyroid patients, the Copper to Zinc (Cu/Zn) ratio was 1.7/1, which was higher than that of control group 1.3/1 (p-value=0.001). Zinc was found to be negatively correlated with TSH (r-value=-0.248; p-value=0.033) and positively correlated with FT4 (r-value=0.374; p-value=0.001). Cu/Zn ratio was found to have a weak positive correlation with FT3/FT4 ratio (r=0.0875; p-value=0.45). Conclusion: This study proved the presence of imbalance of trace elements like zinc and copper among hypothyroid patients and thereby emphasises on their importance in maintenance of thyroid homeostasis. |
topic |
hypothyroid hormone homeostasis micronutrients trace elements |
url |
https://jcdr.net/articles/PDF/12992/41685_CE[Ra1]_F(SL)_PF1(AG_SHU)_PFA(KM)_PB(AG_OM)_PN(SL).pdf |
work_keys_str_mv |
AT shahnazkhatun evaluationofserumzinccopperlevelandtheircorrelationwithcuznratioandft3ft4ratioinhypothyroidism AT gssanthini evaluationofserumzinccopperlevelandtheircorrelationwithcuznratioandft3ft4ratioinhypothyroidism AT emalligai evaluationofserumzinccopperlevelandtheircorrelationwithcuznratioandft3ft4ratioinhypothyroidism AT hrvinodakumar evaluationofserumzinccopperlevelandtheircorrelationwithcuznratioandft3ft4ratioinhypothyroidism |
_version_ |
1724685726377836544 |