Influence of male sex hormone level in the host on the rat tapeworm, Hymenolepis diminuta
Aldrich, David V.
Doctor of Philosophy
In addition to dramatic effects on the primary and secondary sexual characteristics, there are several responses to castration and testosterone administration in the male mammal which indicate this hormone to be at least indirectly a controlling factor in some of the body's fundamental metabolic processes. In the case of the albino rat infected with Hymenolepis diminuta, these effects in turn cause changes in the normal activities of this tapeworm, indicating the far-reaching influence of this sex hormone as well as the intimacy of the host-parasite relationship. The present investigation represents an attempt to analyze further one part of this relationship: namely, some of the metabolic responses of the tapeworm to changes in the testosterone level of the host.