Hostname: page-component-8448b6f56d-c47g7 Total loading time: 0 Render date: 2024-04-25T02:00:21.158Z Has data issue: false hasContentIssue false

Establishment, development and fecundity of Taenia crassiceps in the intestine of prednisolone-treated Mongolian gerbils and inbred mice

Published online by Cambridge University Press:  05 June 2009

Hiroshi Sato
Affiliation:
Department of Parasitology, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060, Japan
Masao Kamiya
Affiliation:
Department of Parasitology, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060, Japan

Abstract

Worm establishment, development and fecundity of Taenia crassiceps in the intestine of prednisolone (PTBA)-treated, 15- and 4-week-old Mongolian gerbils and 9-week-old inbred mice of 4 strains (AKR/J, BALB/cAn, B10D2/oSn and C57BL/KsJ) were investigated following oral administration of metacestodes. Gerbils were divided into 5 groups of 4 animals each according to the host age and commencement day of PTBA-treatment (day −13, −7 or 0 relative to infection). Worm recovery from the intestine on day 35 postinfection was not affected by host age, but fewer worms were recovered the earlier the commencement of PTBA-treatment. Worm size, determined by wet weight, total length and proglottis number, correlated inversely with worm burden, suggesting they were affected by the crowding effect. Proglottides were released normally in the faeces but were markedly depressed in all groups except for that of young gerbils. Furthermore, egg production and its development in gravid proglottides were markedly depressed in all groups. In PTBA-treated mice of 4 strains, sexually mature but not gravid worms were recovered from all mice of the AKR/J strain on days 20–32 postinfection, but none or few worms from the intestine of the others. PTBA-treatment did not inhibit all protective host defence mechanism(s) in the unnatural or alternative rodent definitive host of T. crassiceps.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1990

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Andreassen, J., Hindsbo, O. & Vienberg, S. (1982) Responsiveness of congenially thymus deficient nude mice to the intestinal cestode, Hymenolepis diminula. International Journal for Parasitology, 12, 215219.CrossRefGoogle Scholar
Beck, J. W. (1951) Effect of diet upon singly established Hymenolepis diminuta in rats. Experimental Parasitology, 1, 4659.CrossRefGoogle Scholar
Beveridge, I. & Rickard, M. D. (1975) The development of Taenia pisiformis in various definitive host species. International Journal for Parasitology, 5, 633639.CrossRefGoogle ScholarPubMed
Evans, W. S. (1970) The in vitro cultivation of Hymenolepis microstoma from cysticercoid to egg-producing adult. Canadian Journal of Zoology, 48, 11351137.CrossRefGoogle ScholarPubMed
Ito, A. (1983) Hymenolepis nana; maturation in an immunosuppressed unnatural rat host. Experimental Parasitology, 56, 318326.CrossRefGoogle Scholar
Ito, A. & Kamiyama, T. (1984) Hymenolepis nana; worm recovery from congenitally athymic nude and phenotypically normal rats and mice. Experimental Parasitology, 58, 132137.CrossRefGoogle ScholarPubMed
Ito, A. & Kamiyama, T. (1987) Cortisone-sensitive, innate resistance to Hymenolepis nana infection in congenitally athymic nude rats. Journal of Helminthology, 61, 124128.CrossRefGoogle ScholarPubMed
Ito, A. & Smyth, J. D. (1987) Adult cestodes; immunology of the lumen-dwelling cestode infections. In: Immune Responses in Parasitic Infections: Immunology, Immunopathology and Immunoprophylaxis. Vol. 2 (editor Soulsby, E. J. L.), pp. 115163. CRC Press: Florida.Google Scholar
Kamiya, M. & Sato, H. (1990) Survival, strobilation and sexual maturation of Echinococcus multilocularis in the small intestine of golden hamsters. Parasitology, 100, 125130.CrossRefGoogle ScholarPubMed
Kitaoka, M., Oku, Y., Okamoto, M. & Kamiya, M. (in press) Development and sexual maturation of Taenia crassiceps (Cestoda) in the golden hamster. Journal of Parasitology, 76.Google Scholar
Kroeze, W. K. & Freeman, R. S. (1982) Taenia crassiceps; Fate of cysticerci following ingestion by the mouse. Experimental Parasitology, 54, 425431.CrossRefGoogle ScholarPubMed
Kroeze, W. K. & Freeman, R. S. (1983) Growth and development of Taenia crassiceps (Cestoda) in the small intestine and peritoneal cavity of mice following oral infection. Canadian Journal of Zoology, 61, 15981604.CrossRefGoogle Scholar
Sato, H. & Kamiya, M. (1989a) Viable egg production of Taenia crassiceps developed in the intestine of prednisolone-treated golden hamsters. Japanese Journal of Parasitology, 38, 4653.Google Scholar
Sato, H. & Kamiya, M. (1989b). Deleterious effect of prednisolone on the attachment of Taenia crassiceps cysticerci to the intestine of gerbils. Japanese Journal of Veterinary Science, 51, 10991101.Google Scholar
Thompson, R. C. A. & Eckert, J. (1983) Observations on Echinococcus multilocularis in the definitive host. Zeitschrift für Parasitenkunde, 69, 335345.CrossRefGoogle ScholarPubMed
Verster, A. (1971) Preliminary reports on the golden hamster as a definitive host of Taenia solium Linnaeus, 1758 and Taenia saginata Goeze, 1782. Onderstepoort Journal of Veterinary Research, 38, 6364.Google ScholarPubMed