The potential association of polybrominated diphenyl ether concentrations in serum to thyroid function in patients with abnormal thyroids: a pilot study

Yang, Jinyu; Ma, Yanchun; Zhang, Xian; Liao, Xu; Yang, Yongfu; Sweetman, Andrew; Li, Hong. 2021 The potential association of polybrominated diphenyl ether concentrations in serum to thyroid function in patients with abnormal thyroids: a pilot study. Annals of Palliative Medicine, 10 (8). 9192-9205. https://doi.org/10.21037/apm-21-1697

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Abstract/Summary

Background: To explore possible associations between polybrominated diphenyl ether (PBDE) exposure and patients with abnormal thyroid hormone levels whose thyroid function parameters are above normal ranges. Methods: The serum of 40 patients with thyroid hormone abnormalities was collected in Kunming. triiodothyronine (T3), thyroxine (T4), free triiodothyronine (FT3), free thyroxine (FT4), and thyroid-stimulating hormone (TSH) were detected in serum using chemiluminescence. The PBDE homologs in the patients’ serum were quantitatively analyzed by gas chromatography-mass spectrometry. If the detection frequency of the compound exceeded 50%, it was included in the analysis. Spearman’s rank correlation coefficient and multiple linear regression were used to evaluate the correlation between PBDE homologs and five thyroid function parameters. Results: A total of 33 PBDE homologs were detected, 7 of which had a more than 50% detection rate. BDE-47 was the main homolog detected. Spearman’s correlation showed that no relationship was found between PBDE homologs and thyroid hormones. Multiple linear regression showed that BDE-153 was positively correlated with T4, negatively correlated with T3, while BDE-47 was negatively correlated with FT4 (P<0.05). The correlation between other PBDE homologs and thyroid function parameters was weak (P>0.05). The β coefficient showed that the increase in the logarithmic unit of ∑7PBDEs was related to an increase in FT4 and T4 levels and decreased TSH, T3, and FT3 levels. Conclusions: There is a significant correlation between exposure to PBDE and thyroid dysfunction. The increase of total PBDEs was significantly correlated with the increase of FT4 and T4 levels and decreased TSH, T3, and FT3 levels.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.21037/apm-21-1697
UKCEH and CEH Sections/Science Areas:	Directors, SCs
ISSN:	2224-5820
Additional Information. Not used in RCUK Gateway to Research.:	Open Access paper - full text available via Official URL link.
Additional Keywords:	polybrominated diphenyl ethers (PBDEs), thyroid-stimulating hormone (TSH), free triiodothyronine (FT3), free thyroxine (FT4), thyroid dysfunction
NORA Subject Terms:	Medicine
Date made live:	04 Oct 2021 13:44 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/531167

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