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The effect of fatty acids on the developmental direction of Strongyloides ratti first-stage larvae

Published online by Cambridge University Press:  05 June 2009

Takeya Minematsu ,
Tatsuyuki Mimori ,
Mitsuhiro Tanaka  and
Isao Tada
Takeya Minematsu
Affiliation:
Department of Parasitic Diseases, Kumamoto University Medical School, 2-2-1 Honjo, Kumamoto 860, Japan
Tatsuyuki Mimori
Affiliation:
Department of Parasitic Diseases, Kumamoto University Medical School, 2-2-1 Honjo, Kumamoto 860, Japan
Mitsuhiro Tanaka
Affiliation:
Department of Parasitic Diseases, Kumamoto University Medical School, 2-2-1 Honjo, Kumamoto 860, Japan
Isao Tada
Affiliation:
Department of Parasitic Diseases, Kumamoto University Medical School, 2-2-1 Honjo, Kumamoto 860, Japan
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Abstract

The effect of fatty acids was studied on the developmental direction of Strongyloides ratti first-stage larvae (L1). The proportion of third-stage infective larvae increased markedly when L1 were cultured in faeces with added fatty acids such as palmitic (C16), stearic (C18), oleic (C18:1) and linoleic (C18:2) acids. Unsaturated fatty acids were more effective than saturated ones. Moreover, the proportion of infective larvae increased with quantity of linoleic acid but the triacylglycerols of any fatty acid had no effect. These results suggest that these free fatty acids cause physiological changes that determine the developmental course of L1 of S. ratti in nature.

Keywords

Strongyloides rattifatty acidstriacylglycerolsdevelopment
Type
Research Article
Information
Journal of Helminthology , Volume 63 , Issue 2 , June 1989 , pp. 102 - 106
Copyright
Copyright © Cambridge University Press 1989

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