[Retinylpalmitate-hydrolase activity of the intestine in experimental lambliasis]

The retinylpalmitate-hydrolase activity in the small intestine of healthy and lambliae infected rats was determined. Infection of rats with Giardia lambliae is shown to result in a fall of the retinylpalmiate-hydrase activity, which is restored, in part, on application of a specific therapy (0.1 g/kg of chinacrine) and then practically does not differ from that in healthy animals, when the specific therapy is employed in conjunction with an elevated dose of the vitamin "A" (2000 m. u. of retinyl-palmitate per day).