[A morphological and histochemical study of the large intestine of white mice with experimental trichocephaliasis and after the action of some anthelmintic preparations].

Administration of levamisole, oxphendasole in dose 10 mg/kg and especially of ivomeck in dose 0.01 ml/kg of body weight damages the large intestine mucosa of intact mice and of mice with experimental T. muris infection.

[Effect of different doses of water-soluble retinoic acid on the lipid and 3-beta-ol steroid dehydrogenase concentration in the interstitial tissue and supporting cells of the testes of mice].

A study was made of the influence of various doses of water-soluble retinoic acid on the concentration of lipids and 3-beta-ol steroid dehydrogenase (SD) in the interstitial tissue (IT) and supporting cells (SC) of mouse testicles. Three groups of animals were injected with 1% retinoic acid i. p.

[Effect of vitamin A on the testes].

Experiments were made on adult male mice with experimental unilateral cryptorchism. The animals were divided into three groups. The first group served as control, the second group of animals received mater-soluble retinoic acid in the total dose 0.