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Significance of arsenic and lead in Hashimoto's thyroiditis demonstrated on thyroid tissue, blood, and urine samples

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2020
Authors
Stojsavljević, Aleksandar
Rovčanin, Branislav
Jagodić, Jovana
Drašković Radojković, Danijela
Paunović, Ivan
Gavrović-Jankulović, Marija
Manojlović, Dragan D.
Article (Published version)
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Abstract
Our previous investigation showed significantly increased arsenic (As) content in thyroid tissue samples of patients with Hashimoto's thyroiditis (HT). This research aimed to extend previous findings and provide reliable insight into the close relationship between As and other trace elements with HT by considering a greater number of thyroid tissue samples, accompanied by blood and urine samples. The essential trace elements for thyroid homeostasis (Mn, Cu, Zn, Se) and the main threatening toxic trace elements (Ni, As, Pb, Cd, U) was analyzed by inductively coupled plasma-mass spectrometry (ICP-MS). Relevant parameters that could affect the concentration of trace elements were considered. This research showed that there was a difference in the elemental profile between HT and control samples. The most important findings were related to the elevated As and Pb content in the thyroid tissue and HT blood samples. The obtained negative correlations between As and Pb with Se may explain the ...antagonistic effect of As and Pb on the extrusion of essential Se from the HT tissue. The reduced Se content in the blood and its increased content in urine samples may further confirm this hypothesis and explain the lack of Se in HT. Furthermore, the reported results may highlight the unresolved molecular basis of HT and could indicate the role of trace element effects on thyroid homeostasis.

Keywords:
Arsenic (As) / Hashimoto's thyroiditis / Lead (Pb) / Selenium (Se) / Toxic/ essential trace elements
Source:
Environmental Research, 2020, 186, 109538-
Publisher:
  • Elsevier
Projects:
  • Application of advanced oxidation processes and nanostructured oxide materials for the removal of pollutants from the environment, development and optimisation of instrumental techniques for efficiency monitoring (RS-172030)

DOI: 10.1016/j.envres.2020.109538

ISSN: 0013-9351

WoS: 000548186300069

Scopus: 2-s2.0-85083432390
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URI
http://cherry.chem.bg.ac.rs/handle/123456789/4032
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Hemijski fakultet

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