Expression and localization of aquaporin-1 in temporomandibular joint disc with internal derangement

Journal of Oral Pathology & Medicine : Official Publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology
Carla LoretoRosario Caltabiano

Abstract

Internal derangement is the most frequent arthropathy affecting the temporomandibular joint, where its commonest form is anterior disc displacement with or without reduction. Despite the frequency of the disorder, the biochemical features of displaced discs are still unclear. We investigated the expression pattern and localization of aquaporin-1, an important channel protein involved in plasma membrane water permeability, in patients with anterior disc displacement (both with and without reduction), with a view to assessing the characteristics of local tissue responses to the microenvironmental changes induced by abnormal mechanical loading of the displaced disc. Protein expression was studied by immunohistochemistry in different areas of discs from 18 patients with anterior disc displacement with or without reduction and in four normal controls. A greater proportion of cells immunopositive for aquaporin-1 were detected in diseased than in normal discs. Whereas protein expression was substantially similar in the different areas of normal discs, a significantly larger number of immunopositive cells were detected in the posterior band of displaced discs without reduction and in the anterior and intermediate bands of those with re...Continue Reading

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Citations

Mar 5, 2013·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Edoardo SicurezzaRosalia Leonardi
Jan 21, 2014·Acta histochemica·Mugurel Constantin RusuVasile Sorin Mănoiu
Jul 15, 2017·Journal of Cellular Physiology·Adriana C E GrazianoVenera Cardile
Sep 28, 2017·Biomedicine & Pharmacotherapy = Biomédecine & Pharmacothérapie·Jie-En PanYou-Jia Xu

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