Dibutyl-Phthalate Exposure from Mesalamine Medications and Serum Thyroid Hormones in Men
| Autor: | Thomas R. Zoeller, Tim I M Korevaar, Maarten A. C. Broeren, Joshua R. Korzenik, Feiby L. Nassan, Alan C. Moss, Russ Hauser, Elizabeth J. Hait, Molly Estill, Jennifer B. Ford, Brent A. Coull, Niels E. Skakkebæk, Stephen A. Krawetz, Ralph A de Poortere |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Adult
Male medicine.medical_specialty Thyroid Hormones Dibutyl phthalate 010501 environmental sciences 01 natural sciences Gastroenterology Article 03 medical and health sciences chemistry.chemical_compound Young Adult 0302 clinical medicine Thyroid peroxidase Internal medicine Medicine Humans 030212 general & internal medicine Prospective Studies Prospective cohort study Mesalamine 0105 earth and related environmental sciences Triiodothyronine biology business.industry Thyroid disease Thyroid Anti-Inflammatory Agents Non-Steroidal Public Health Environmental and Occupational Health Middle Aged medicine.disease Inflammatory Bowel Diseases Dibutyl Phthalate medicine.anatomical_structure chemistry biology.protein Thyroid function business Hormone |
| Popis: | Background Dibutyl phthalate (DBP) is an endocrine disruptor and used in some medication coatings, such as mesalamine for treatment inflammatory bowel disease (IBD). Objectives To determine whether high-DBP from some mesalamine medications alters thyroid function. Methods Seventy men with IBD, without thyroid disease or any radiation history participated in a crossover-crossback prospective study and provided up to 6 serum samples (2:baseline, 2:crossover, 2:crossback). Men on non-DBP mesalamine (background exposure) at baseline crossed-over to DBP-mesalamine (high exposure) then crossed-back to non-DBP mesalamine (B1HB2-arm) and vice versa for men on DBP-mesalamine at baseline (H1BH2-arm). Serum concentrations of total triiodothyronine (T3), total thyroxine (T4), free triiodothyronine (FT3), free thyroxine (FT4), thyroid-stimulating hormone (TSH) and thyroid peroxidase antibody (TPOAb), and thyroglobulin antibody (TgAb). Results After crossover in B1HB2-arm (26 men, 134 samples), T3 decreased 10% (95% confidence interval (CI): 14%,-5%), T3/T4 ratio decreased 8% (CI: 12%,-3%), TPOAb, and TgAb concentrations decreased, 11% (−20%, −2%) and 15% (−23%, −5%), respectively; after crossback, they increased. When men in the H1BH2-arm (44 men, 193 samples) crossed-over, T3 decreased 7% (CI: −11%, −2%) and T3/T4 ratio decreased 6% (CI: −9%, −2%). After crossback, only TgAb increased and FT4 decreased. Conclusions High-DBP novel exposure or removal from chronic high-DBP exposure could alter elements of the thyroid system, and most probably alters the peripheral T4 conversion to T3 and thyroid autoimmunity, consistent with thyroid disruption. After exposure removal, these trends were mostly reversed. |
| Databáze: | OpenAIRE |
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