In order to determine possible mediators for development of anorexia in pigs infected with Ascaris suum, serum levels of gastrin, insulin and glucagon were measured. After a single high oral dose of 100 000-200 000 embryonated eggs the serum levels of gastrin and insulin in the infected pigs did not significantly differ from those in controls. Serum glucagon levels in the infected groups, however, were lower than those in controls and the difference was more evident 24 days post-inoculation and later. © 1990.
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