Serum Myoglobin in Patients with Thyroid Dysfunction

Objectives: To assess the pattern of change in serum myoglobin concentration in subjects with thyroid dysfunction. Methods: Serum samples were selected from 150 subjects with suspected thyroid disorder who were referred to the Royal Hospital, Muscat, Oman. The subjects were 35 males and 115 females,...

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Main Authors: Waad-Allah S Mula-Abed, Sawsan S Al-Sinani, Huda S Al-Hashmi
Format: Article
Language:English
Published: Sultan Qaboos University 2009-04-01
Series:Sultan Qaboos University Medical Journal
Subjects:
Online Access:https://journals.squ.edu.om/index.php/squmj/article/view/1399
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author Waad-Allah S Mula-Abed
Sawsan S Al-Sinani
Huda S Al-Hashmi
author_facet Waad-Allah S Mula-Abed
Sawsan S Al-Sinani
Huda S Al-Hashmi
author_sort Waad-Allah S Mula-Abed
collection DOAJ
description Objectives: To assess the pattern of change in serum myoglobin concentration in subjects with thyroid dysfunction. Methods: Serum samples were selected from 150 subjects with suspected thyroid disorder who were referred to the Royal Hospital, Muscat, Oman. The subjects were 35 males and 115 females, aged 14-56 years with mean ± SD of 34.3 ± 12.7 years. They were classified on the basis of thyroid stimulating hormone (TSH) and free thyroxine (FT4) into 3 groups, each consisting of 50 subjects: hypothyroid, hyperthyroid, and euthyroid subjects. Results: The mean serum myoglobin concentration was higher in hypothyroid patients compared to hyperthyroid and euthyroid subjects (mean ± SD was 38.5 ± 23.1 µg/L in hypothyroid; 18.1 ± 7.0µg/L in hyperthyroid; 17.4 ± 5.7µg/L in euthyroid). There was a significant difference in myoglobin concentration between hypothyroid and euthyroid groups (F = 36.1, p< 0.001), however, there was no significant difference between the hyperthyroid and euthyroid groups. When the mean ± 2SD for myoglobin in euthyroid subjects was calculated, the reference range was 6-29 µg/L. Of the hypothyroid subjects, 29 (58%) had high myoglobin and 21 (42%) had normal myoglobin level. No significant correlation was noticed between TSH or FT4 and myoglobin in all studied subjects. Conclusion:Raised serum myoglobin may be observed in patients with hypothyroidism. Hence hypothyroidism should be considered in the differential diagnosis of patients with raised serum myoglobin concentration.
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spelling doaj.art-40e49820ebf84482a128fa55669411242022-12-22T00:58:07ZengSultan Qaboos UniversitySultan Qaboos University Medical Journal2075-051X2075-05282009-04-019137411327Serum Myoglobin in Patients with Thyroid DysfunctionWaad-Allah S Mula-Abed0Sawsan S Al-Sinani1Huda S Al-Hashmi2Department of Chemical Pathology, Royal Hospital, Muscat, Sultanate of OmanDepartment of Chemical Pathology, Royal Hospital, Muscat, Sultanate of OmanDepartment of Chemical Pathology, Royal Hospital, Muscat, Sultanate of OmanObjectives: To assess the pattern of change in serum myoglobin concentration in subjects with thyroid dysfunction. Methods: Serum samples were selected from 150 subjects with suspected thyroid disorder who were referred to the Royal Hospital, Muscat, Oman. The subjects were 35 males and 115 females, aged 14-56 years with mean ± SD of 34.3 ± 12.7 years. They were classified on the basis of thyroid stimulating hormone (TSH) and free thyroxine (FT4) into 3 groups, each consisting of 50 subjects: hypothyroid, hyperthyroid, and euthyroid subjects. Results: The mean serum myoglobin concentration was higher in hypothyroid patients compared to hyperthyroid and euthyroid subjects (mean ± SD was 38.5 ± 23.1 µg/L in hypothyroid; 18.1 ± 7.0µg/L in hyperthyroid; 17.4 ± 5.7µg/L in euthyroid). There was a significant difference in myoglobin concentration between hypothyroid and euthyroid groups (F = 36.1, p< 0.001), however, there was no significant difference between the hyperthyroid and euthyroid groups. When the mean ± 2SD for myoglobin in euthyroid subjects was calculated, the reference range was 6-29 µg/L. Of the hypothyroid subjects, 29 (58%) had high myoglobin and 21 (42%) had normal myoglobin level. No significant correlation was noticed between TSH or FT4 and myoglobin in all studied subjects. Conclusion:Raised serum myoglobin may be observed in patients with hypothyroidism. Hence hypothyroidism should be considered in the differential diagnosis of patients with raised serum myoglobin concentration.https://journals.squ.edu.om/index.php/squmj/article/view/1399myoglobinhypothyroidism.
spellingShingle Waad-Allah S Mula-Abed
Sawsan S Al-Sinani
Huda S Al-Hashmi
Serum Myoglobin in Patients with Thyroid Dysfunction
Sultan Qaboos University Medical Journal
myoglobin
hypothyroidism.
title Serum Myoglobin in Patients with Thyroid Dysfunction
title_full Serum Myoglobin in Patients with Thyroid Dysfunction
title_fullStr Serum Myoglobin in Patients with Thyroid Dysfunction
title_full_unstemmed Serum Myoglobin in Patients with Thyroid Dysfunction
title_short Serum Myoglobin in Patients with Thyroid Dysfunction
title_sort serum myoglobin in patients with thyroid dysfunction
topic myoglobin
hypothyroidism.
url https://journals.squ.edu.om/index.php/squmj/article/view/1399
work_keys_str_mv AT waadallahsmulaabed serummyoglobininpatientswiththyroiddysfunction
AT sawsansalsinani serummyoglobininpatientswiththyroiddysfunction
AT hudasalhashmi serummyoglobininpatientswiththyroiddysfunction