Changes induced by progesterone treatment in the sulphatides of the frog oviduct |
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Authors: | L Vitaioli E Baldoni L Bellini and L Bolognani |
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Institution: | (1) Department of Cellular Biology, University of Camerino, 62032 Camerino, Italy;(2) Department of Animal Biology, University of Modena, 41100 Modena, Italy |
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Abstract: | Summary Sulphatides have been studied by histochemical and biochemical procedures in the oviduct of the frog in different experimental
conditions. In ovariectomized or hypophysectomized, animals, compared to sham-operated, an increase in sulphatides was observed.
The progesterone treatment did not significantly, modify this lipid fraction in ovariectomized frogs, while in hypophysectomized
frogs it induced a further increase. Densitographic profiles of the sulphatides, obtained by thinlayer chromatography (TLC)
and also recorded by Tesak equipment, were similar in ovariectomized or hypophysectomized frogs following hormone treatment
because they showed three distinct fractions in both experimental groups of animals. The appearance of a third fraction never
previously observed was probably induced by the progesterone treatment. Moreover, under the effects of this hormone, the phospholipid
fractions (phosphatidylcholine and phosphatidylethanolamine) also showed different densitographic profiles. |
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