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Antienflamatuar and antiadhesive effect of clioquinol.

International journal of surgery (London, England) (2015-02-02)
Turan Yildiz, Zekeriya Ilce, Muzaffer Yildirim, Mehmet Akdogan, Yusuf Yurumez, Onursal Varlikli, Fatma Husniye Dilek
ABSTRACT

The aim of this study is to investigate the expected adhesion-modifying effect of clinoquinol which has metal-chelating feature that limits the inflammation and fibroblastic activity. A total of 40 Wistar Albino rats were included, which were divided into 5 groups. Group-1 constituted the sham group. Other groups, adhesions were induced by performing cecal abrasion on the rats. For treatment, saline solution was added to Group-2, carboxymethylcellulose was added to Group-3, methylene blue was added to Group-4, and clioquinol was added to Group-5. Blood samples were obtained from the heart to measure IL-10 and TNF α-levels. Adhesions were evaluated both macroscopically and histopathologically. Clioquinol reduced adhesions at significant level via decreasing the inflammation and fibroblastic activity in the adhesion-induced rats. At macroscopic level, carboxymethylcellulose and clioquinol were the most potent agents in reducing adhesions. Nonetheless, significant foreign body-reaction was observed in the carboxymethylcellulose-treated group. Clioquinol could reduce the formation of intra-abdominal adhesions. It exerts this activity by limiting the inflammation and fibroblastic activity between the intestines and serous surfaces. Furthermore, it does not induce a foreign body reaction. Due to these properties, we conclude that clioquinol can be used as an alternative agent to prevent adhesions.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Xylazine, ≥99%
Sigma-Aldrich
5-Chloro-7-iodo-8-quinolinol, ≥95.0% (HPLC)
Sigma-Aldrich
Methylene blue, certified by the Biological Stain Commission
Sigma-Aldrich
Methylene Blue Solution 1.4%(w/v)95%ethanol | 7220-79-3, 1.4 % (w/v) in 95% ethanol
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Methylene Blue solution, 0.05 wt. % in H2O
Sigma-Aldrich
Methylene Blue solution, for microscopy, concentrate according to Ehrlich, concentrated, aqueous solution
Supelco
Clioquinol, VETRANAL®, analytical standard
Sigma-Aldrich
Methylene Blue solution, suitable for microbiology
Sigma-Aldrich
Methylene Blue solution, for microscopy
Clioquinol, European Pharmacopoeia (EP) Reference Standard
USP
Clioquinol, United States Pharmacopeia (USP) Reference Standard