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Peroxisome proliferator-activated receptor-gamma in thyroid eye disease: contraindication for thiazolidinedione use?

Starkey, Kerry, Heufelder, Armin, Baker, Glynn Raymond, Joba, Wener, Evans, Marc, Davies, Stephen and Ludgate, Marian Elizabeth 2003. Peroxisome proliferator-activated receptor-gamma in thyroid eye disease: contraindication for thiazolidinedione use? Journal of Clinical Endocrinology & Metabolism 88 (1) , pp. 55-59. 10.1210/jc.2002-020987

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Abstract

A male type-2 diabetic, treated with the peroxisome proliferator-activated receptor (PPAR) agonist, Pioglitazone, experienced exacerbation of his thyroid eye disease (TED), which had been stable and inactive for more then 2 yr. Expansion of the orbital fat developed, and we have investigated the effects of PPAR agonists, including Pioglitazone and, subsequently, an antagonist on the adipogenesis of preadipocytes from TED orbits and Graves’ neck fats. The percentage of differentiating cells, assessed by oil red O staining, morphological changes, and PPAR transcript levels, was determined for preadipocytes in hormone/agonist-induced models of adipogenesis, supplemented or not with PPAR agonists or antagonist. The PPAR agonists resulted in a 2- to 13-fold increase, and a PPAR antagonist produced a 2- to 7-fold reduction in adipogenesis in vitro. Effects were dose dependent and maximal at 1 or 10 µM. We suggest that care should be exercised when selecting patients for treatment with PPAR agonists and that such agonists may be contraindicated in individuals with a previous history of autoimmune thyroid or eye diseases. Our work also suggests that PPAR antagonists could provide a novel therapy for TED patients in the active stage of disease. This work was supported by grants from the University of Wales College of Medicine and the Wales Office for Research and Development.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: R Medicine > R Medicine (General)
ISSN: 0021-972X
Last Modified: 04 Jun 2017 01:32
URI: http://orca.cf.ac.uk/id/eprint/415

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