Histopathological changes of the liver after praziquantel treatment in Clonorchis sinensis infected rabbits.
10.3347/kjp.1987.25.2.110
- Author:
Soon Hyung LEE
1
;
Sung Tae HONG
;
Chong Soon KIM
;
Woon Mok SOHN
;
Jong Yil CHAI
;
Yoon Seong LEE
Author Information
1. Department of Parasitology, Forensic Medicine and INstitute of Endemic Diseases, College of Medicine, Seoul National University, Seoul 110, Korea.
- Publication Type:Original Article
- MeSH:
parasitolgy-helminth-trematoda;
Clonorchis sinensis;
liver;
clonorchiasis;
chemotherapy;
praziquantel;
pathology;
rabbit
- From:The Korean Journal of Parasitology
1987;25(2):110-122
- CountryRepublic of Korea
- Language:English
-
Abstract:
The rabbits were infected with Clnorchis sinensis and were treated with praziquantel at the dose of 50 mg/kg x 2 x 2 days afer 1, 2, 4, 8 weeks and 7 months from the infection. Their livers were observed histopathologically 1, 4 and 12 weeks after treatment. The findings are summarized as below: The changes of the liver in control rabbits were relatively mild until 2 weeks after infection. However, widening and thickening of bile ducts, proliferation of biliary epithelium and periductal fibrosis were moderate after 4 weeks from infection and those changes were severe after 8 weeks and 7months. Goblet cell metaplasia was found after 8 weeks from infection. The mild changes of 2-week infection group were completely recovered by 4 weeks after the treatment. In the groups of 4 or more weeks after infection, the changes of bile ducts became milder in the degree after the treatment, but were still found 12 weeks after the treatment. As the infection duration was passed, more severe changes were observed after the treatment. In this context, it is concluded that the liver changes of acute clonorchiasis in the early two weeks are reversible by treatment while chronic biliary epithelial changes are irreversible. Therefore, early treatment should be recommended as possible to minimize the remaining histopathological changes of liver in clonorchiasis.
