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Ovarian follicles were collected from the perch belonging to the vitellogenic stage and incubated in vitro for 4 h in the absence (control) or presence of triiodothyronine (T3). Addition of T3 (40 ng/ml) to the follicle incubation caused a two-fold increase of [3H] pregnenolone conversion to radiolabelled progesterone (P4) as compared to the control. The(More)
A lectin histochemical study was carried out to determine the distribution of specific sugars in glycoconjugates within an important osmoregulatory organ, amphibian skin. Paraffin sections were made of Rana pipiens skin from dorsal and ventral regions of aquatic larvae in representative developmental stages as well as from several body regions of(More)
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