Effect of celecoxib against different developmental stages of experimental Schistosoma mansoni infection.

Autor: Abou-El-Naga IF; Department of Medical Parasitology, Faculty of Medicine, Alexandria University, Alexandria, Egypt., El-Temsahy MM; Department of Medical Parasitology, Faculty of Medicine, Alexandria University, Alexandria, Egypt., Mogahed NMFH; Department of Medical Parasitology, Faculty of Medicine, Alexandria University, Alexandria, Egypt., Sheta E; Department of Pathology, Faculty of Medicine, Alexandria University, Alexandria, Egypt., Makled S; Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt., Ibrahim EI; Department of Medical Parasitology, Faculty of Medicine, Alexandria University, Alexandria, Egypt. Electronic address: dreman1812@gmail.com.
Jazyk: angličtina
Zdroj: Acta tropica [Acta Trop] 2021 Jun; Vol. 218, pp. 105891. Date of Electronic Publication: 2021 Mar 25.
DOI: 10.1016/j.actatropica.2021.105891
Abstrakt: Due to the high prevalence of schistosomiasis and the wide use of praziquantel solely for mass drug administration to control the disease, there is a great concern about the potential emergence of reduced susceptibility strains. This, together with the concern that praziquantel is ineffective against juvenile worms highlight the importance of developing an alternative anti-schistosomal drug. Using nonsteroidal anti-inflammatory drugs against schistosome infection is considerable. The present study evaluated the effect of oral administration of five days celecoxib regimen (20 mg/kg/day) against different developmental stages of Schistosoma mansoni infection. This regimen induced significant reduction in worm burden, tissue egg count, individual female fecundity and the mean percentage of immature and mature eggs with increased mean percentage of dead eggs. More importantly, celecoxib was more potent than praziquantel in all these parasitological parameters (except in the worm burden when given against the adult stage where the difference was statistically non-significant). Scanning and transmission electron microscopy of the adult worms revealed severe tegumental damage, laceration of the muscular layers and oedema of the syncytial layer. There was disruption of the testicular, ovarian and vitelline glandular tissues with signs of apoptosis and abnormalities of the spermatozoa and the oocytes. Additionally, celecoxib induced reduction in the number and the size of the hepatic granulomata and also amelioration of the hepatic tissue pathology.
(Copyright © 2021. Published by Elsevier B.V.)
Databáze: MEDLINE
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