Citric acid is more effective than sodium thiosulfate in chelating calcium in a dissolution model of calcinosis

Bibliographic Details
Title: Citric acid is more effective than sodium thiosulfate in chelating calcium in a dissolution model of calcinosis
Authors: Kyle A. Burgess, Richard E. P. Winpenny, Alberto Saiani, Aline F. Miller, Ariane L. Herrick, Rachel E. B. Watson
Source: Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Publisher Information: Nature Portfolio, 2024.
Publication Year: 2024
Collection: LCC:Medicine
LCC:Science
Subject Terms: Medicine, Science
More Details: Abstract Calcinosis cutis affects 20–40% of patients with systemic sclerosis. This study tests the hypothesis that calcium-chelating polycarboxylic acids can induce calcium dissolution without skin toxicity or irritancy. We compared citric acid (CA) and ethylenediaminetetraacetic acid (EDTA) to sodium thiosulfate (STS) for their ability to chelate calcium in vitro using a pharmaceutical dissolution model of calcinosis (hydroxyapatite (HAp) tablet), prior to evaluation of toxicity and irritancy in 2D in vitro skin models. Resultant data was used to predict therapeutic concentrations for application in a validated 3D skin irritation model (SkinEthic™; EpiSkin SA) and to assay maximal percutaneous absorption. Dissolution performance was further assessed via ability to dissolve a calcified matrix laid down in vitro. Pharmacological dissolution studies identified that polycarboxylic acids were superior to STS in dissolving HAp tablets. In vitro, compounds had little effect on cell numbers at concentrations of
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2045-2322
Relation: https://doaj.org/toc/2045-2322
DOI: 10.1038/s41598-024-65761-3
Access URL: https://doaj.org/article/c4f8ceec09ba4d7ca85689d798137dfa
Accession Number: edsdoj.4f8ceec09ba4d7ca85689d798137dfa
Database: Directory of Open Access Journals
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More Details
ISSN:20452322
DOI:10.1038/s41598-024-65761-3
Published in:Scientific Reports
Language:English