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Korean J Parasitol. 2010 Jun;48(2):139-143.
Published online 2010 June 17.  doi: 10.3347/kjp.2010.48.2.139.
Copyright © 2010 by The Korean Society for Parasitology
Extraintestinal Migration of Centrorhynchus sp. (Acanthocephala: Centrorhynchidae) in Experimentally Infected Rats
Chang-Jin Choi,1 Hye-Jung Lee,2 Jai-Hyang Go,3 Yun-Kyu Park,4 Jong-Yil Chai,5 and Min Seo2
1Department of Family Medicine, The Catholic University of Korea, Seoul St. Mary's Hospital, Seoul 137-040, Korea.
2Department of Parasitology, College of Medicine, Dankook University, Cheonan 330-714, Korea.
3Department of Pathology, Dankook University College of Medicine, Cheonan, 330-714, Korea.
4Department of Parasitology and Institute for Medical Science, College of Medicine, Inha University, Incheon 400-103, Korea.
5Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, and Institute of Endemic Diseases, Seoul National University Medical Research Center, Seoul 110-799, Korea.

Corresponding author (Email: bbbenji@naver.com )
Received January 27, 2010; Revised March 08, 2010; Accepted March 17, 2010.

Abstract

Reptiles were known to serve as paratenic hosts for Centrorhynchus (Acanthocephala: Centrorhynchidae) in Korea, but the infection course in experimental animals was not elucidated yet. In this study, the tiger keelback snakes (Rhabdophis tigrinus) were collected and digested with artificial pepsin solution, and the larvae of Centrorhynchus were recovered from them. Then, the collected larvae were orally infected to rats for developmental observations. In rats, all the larvae were observed outside the intestine on day 3 post-infection (PI), including the mesentery and abdominal muscles. As for the development in rats, the ovary of Centrorhynchus sp. was observed at day 15 PI, and the cement glands were 3 in number. Based on the morphological characteristics, including the arrangement of proboscis hooks, these larvae proved to be a species of Centrorhynchus, and more studies were needed for species identification.

Keywords: Centrorhynchus, acanthocephala, migration, Rhabdophis tigrinus, development.
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