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Scanning electron microscope studies of the small intestine of rats maintained on a low protein diet and infected with Nippostrongylus brasiliensis

Published online by Cambridge University Press:  06 April 2009

Jean Martin
Affiliation:
Molteno Institute, Downing Street, Cambridge CB2 3EE

Summary

In undernourished rats infected with Nippostrongylus brasiliensis partial villus atrophy was observed in large areas of the anterior and posterior regions of the intestine. In addition, the following changes in structure were observed; some areas of the intestine contained misshapen villi which lacked microvilli on the lateral surfaces; cell-like bodies devoid of microvilli appeared to be budded off from the sides and tips of some malformed villi and there appeared to be extensive leakage of blood constituents into the lumen of the intestine. Morphological changes were present up to day 24 of the infection when the experiment was terminated. The possible consequences of the extensive breakdown of villus structure are discussed.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1980

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References

Africa, C. M. (1931). Studies on the host relations of Nippostrongylua muris with special reference to age resistance and acquired immunity. Journal of Parasitology 18, 113.CrossRefGoogle Scholar
Bolin, T. D., Davis, A. E., Cummins, A. G., Duncombe, V. M. & Kelly, J. D. (1977). Effect of iron and protein deficiency on the expulsion of Nippostrongylus brasiliensis from the small intestine of the rat. Gut, 18, 182–6.CrossRefGoogle ScholarPubMed
Brambell, M. R. (1965). The distribution of a primary infestation of Nippostrongylus brasiliensis in the small intestine of laboratory rats. Parasitology 55, 313–24.CrossRefGoogle ScholarPubMed
Clarke, K. R. (1968). The effect of a low protein diet and a glucose filter paper diet on the course of an infection of Nippostrongylus brasiliensis. Parasitology 58, 325–39.CrossRefGoogle Scholar
Crompton, D. W. T., Arnold, S., Coward, W. A. & Lunn, P. G. (1978). Nippostrongylua (Nematoda) infection in protein-malnourished rats. Transactions of the Royal Society of Tropical Medicine and Hygiene 72, 195–7.CrossRefGoogle ScholarPubMed
Edwards, A. J., Burt, J. S. & Ogilvie, B. M. (1971). The effect of immunity upon some enzymes of the parasitic nematode Nippostrongylus brasiliensis. Parasitology 62, 339–47.CrossRefGoogle ScholarPubMed
Ferguson, A. & Jarrett, E. E. E. (1975). Hypersensitivity reactions in the small intestine: thymus independent reactions of experimental ‘Partial villous atrophy’. Gut 16, 114–17.CrossRefGoogle Scholar
Jarrett, E. E. E., Jarrett, W. F. H. & Urquhart, G. M. (1968). Quantitative studies on the kinetics of establishment anD expulsion of intestinal nematode populations in susceptible and immune hosts. Nippostrongylus brasiliensis in the rat. Parasitology 58, 625–40.CrossRefGoogle ScholarPubMed
Jones, V. E., Edwards, A. J. & Ogilvie, B. M. (1970). The circulating immunoglobulins involved in protective immunity to the intestinal stage of Nippostrongylus brasiliensis in the rat. Immunology 18, 621–33.Google Scholar
Keeling, J. E. D. (1960). The effects of ultra-violet radiation on Nippostrongylus muris. 1. Irradiation of infective larvae: lethal and sub-lethal effects. Annals of Tropical Medicine and Parasitology 54, 182–91.CrossRefGoogle Scholar
Keller, R. & Keist, R. (1972). Protective immunity to Nippostrongylus brasiliensia in the rat; central role of the lymphocyte in worm expulsion. Immunology 22, 767–73.Google ScholarPubMed
Lee, D. L. (1969). Changes in adult Nippostrongylus brasiliensia during the development of immunity to this nematode in rats. Parasitology 59, 2939.CrossRefGoogle ScholarPubMed
Leohry, C. A. & Creamer, B. (1969). Three dimensional structure of the rat small intestinal mucosa related to mucosal dynamics. Gut 10, 112–20.CrossRefGoogle Scholar
Ogilvie, B. M. (1965). Role of adult worms in immunity of rats to Nippostrongylus brasiliensis. Parasitology 55, 325–35.CrossRefGoogle ScholarPubMed
Ogilvie, B. M. & Hockley, D. J. (1968). Effects of immunity on Nippostrongylus brasiliensia adult worms. Reversible and irreversible changes in infectivity, reproduction and morphology. Journal of Parasitology 54, 1073–84.CrossRefGoogle ScholarPubMed
Ogilvie, B. M. & Jones, V. E. (1971). Nippostrongylus brasiliensis. A review of immunity and the host parasite relationship in the rat. Experimental Parasitology 29, 138–77.CrossRefGoogle ScholarPubMed
Ogilvie, B. M. & Jones, V. E. (1973). Immunity in the parasitic relationship between helminths and hosts. Progress in Allergy 17, 93144.Google ScholarPubMed
Ogilvie, B. M. & Love, R. J. (1974). Cooperation between antibodies and cells in immunity to a nematode parasite. Transplantation Reviews 19, 147–68.Google ScholarPubMed
Ogilvie, B. M., Love, R. J., Jarra, W. & Brown, K. N. (1977). Nippostrongylus brasiliensis in rats: the cellular requirement for worm expulsion. Immunology 32, 521–8.Google ScholarPubMed
Ruitenberg, E. J., Leenstra, F. & Elgersma, A. (1977). Thymus dependence and independence of intestinal pathology in a Trichinella spiralis infection: a study in congenitally athymic (nude) mice. British Journal of Experimental Pathology 58, (3), 311–14.Google Scholar
Scrimshaw, N. S., Taylor, C. E. & Gordon, J. E. (1968). Interactions of nutrition and infection. World Health Organization. Monograph Series 57.Google ScholarPubMed
Symons, L. E. A. (1960). Pathology of infestation of the rat with Nippostrongylus muris (Yokagawa) V. protein digestion. Australian Journal of Biological Sciences 13, 578–83.CrossRefGoogle Scholar
Symons, L. E. A. (1965). Kinetics of the epithelial cells and morphology of villi and crypts in the jejunum of the rat infected by the nematode Nippostrongylus brasiliensis. Gostroen-terology 49, 158–68.CrossRefGoogle ScholarPubMed
Symons, L. E. A. (1969). Pathology of gastrointestinal helminthiases. International Review of Tropical Medicine 3, 49100.Google ScholarPubMed
Symons, L. E. A. (1976). Scanning electron microscopy of the jejunum of the rat infected by the nematode Nippostrongylus brasiliensis. International Journal for Parasitology 6, 107–11.CrossRefGoogle ScholarPubMed
Symons, L. E. A. (1978). Epithelial cell mitosis and morphology of worm-free regions of the intestines of rats infected by Nippostrongylus brasiliensis. Journal of Parasitology 64 (5), 958–9.CrossRefGoogle ScholarPubMed
Symons, L. E. A. & Fairbairn, D. (1962). Pathology, absorption, transport and activity of digestive enzymes in rat jejunum parasitized by the nematode, Nippostrongylus brasiliensis. Federation Proceedings 21, 913–18.Google ScholarPubMed
Symons, L. E. A. & Fairbairn, D. (1963). Biochemical pathology of the rat jejunum parasitised by the nematode Nippostrongylua brasiliensis. Experimental Parasitology 13, 284304.CrossRefGoogle Scholar
Symons, L. E. A., Gibbins, J. R. & Jones, W. O. (1971). Jejunal malabsorption in the rat infected by the nematode Nippostrongylus brasiliensis. International Journal for Parasitology 1, 179–87.CrossRefGoogle ScholarPubMed
Wells, P. D. (1962). Mast cell, eosinophil and histamine levels in Nippostrongylua brasiliensis infected rats. Experimental Parasitology 12, 82101.CrossRefGoogle ScholarPubMed