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01-02-2021 | Candida Balanitis

Caspofungin Effects on Electrocardiogram of Mice: An Evaluation of Cardiac Safety

Authors: Danielle Cristiane Correa De Paula, Elaine Amaral Leite, Carolina Morais Araujo, Renata Tupinambá Branquinho, Homero Nogueira Guimarães, Andrea Grabe-Guimarães

Published in: Cardiovascular Toxicology | Issue 2/2021

Abstract

Caspofungin is an echinocandin, exhibiting efficacy against most Candida species invasive infection. Its cardiotoxicity was reported in isolated rat heart and ventricular myocytes, but in vivo and clinical studies are insufficient. Our objective was to evaluate caspofungin in vivo cardiac effects using an efficacious dose against Candida albicans. Female Swiss mice were infected with C. albicans, and treated with caspofungin, 5 or 10 mg/kg, intraperitoneal along 5 days. Survival rate and colony-forming units (CFU) into vital organs were determined. For cardiac effects study, mice were treated with caspofungin 10 mg/kg, and electrocardiogram (ECG) signal was obtained on C. albicans-infected mice, single dose-treated, and uninfected mice treated along 5 days, both groups to measure ECG intervals. Besides, ECG was also obtained by telemetry on uninfected mice to evaluate heart rate variability (HRV) parameters. The MIC for caspofungin on the wild-type C. albicans SC5314 strain was 0.3 μg/ml, indicating the susceptible. Survival rate increased significantly in infected mice treated with caspofungin compared to mice treated with vehicle. None of the survived infected mice presented positive CFU after treatment with 10 mg/kg. C. albicans infection induced prolongation of QRS, QT, and QTc intervals; caspofungin did not alter this effect. Caspofungin induced increase of PR and an additional increase of QRS after 24 h of a single dose in infected mice. No significant alterations occurred in ECG intervals and HRV parameters of uninfected mice, after caspofungin treatment. Caspofungin showed in vivo cardiac relative safety maintaining its antifungal efficacy against C. albicans.

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Title: Caspofungin Effects on Electrocardiogram of Mice: An Evaluation of Cardiac Safety
Authors: Danielle Cristiane Correa De Paula
Elaine Amaral Leite
Carolina Morais Araujo
Renata Tupinambá Branquinho
Homero Nogueira Guimarães
Andrea Grabe-Guimarães
Publication date: 01-02-2021
Publisher: Springer US
Keywords: Candida Balanitis
Candida Albicans
Caspofungin
Published in: Cardiovascular Toxicology / Issue 2/2021
Print ISSN: 1530-7905
Electronic ISSN: 1559-0259
DOI: https://doi.org/10.1007/s12012-020-09599-x

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