A G Taranenko

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The contents of prolactin in the blood of male ruminants and dry-period, pregnant, and lactating female ruminants was studied by a radioimmunological method. The prolactin was found to take part not only in the lactation processes but in some other functions too. The utmost changes of the prolactin contents were observed during milking: the release of(More)
The authors studied binding of prolactin labeled with 125I in the blood of rats and lactating goats. Not over 20% of the hormone was bound in vitro the first 5 to 10 min of incubation with the blood serum, and a complex with molecular weight of 200 000 appeared which was similar to that formed in vivo. With a longer incubation 125I-prolactin was bound in(More)
Using the radioimmunological method, the dynamics of concentration as well as the content of monomeric and dimeric prolactin forms in the blood and lymph of the goat mammary gland were studied in the course of milking and after i.v. administration of exogenous hormone. The maximum prolactin concentration in lymph was lower than that in blood by 57.7 +/- 0.9(More)
The authors identified prolactin-binding proteins in the blood of goats and rats. Proteins were isolated by affine chromatography. It was shown by gel filtration on Sephadex G-200 and Sepharose-6B and also by disc electrophoresis in polyacrylamide gel and zonal electrophoresis in agarose that these proteins were referred to gamma-globulins. In zonal(More)
Prolactin-125I metabolism in the mammary gland of lactating rats was studied; the hormone was injected intraperitoneally. Radioactive products accumulated by the mammary gland tissue were extracted with isotonic medium. Tissue extracts, blood serum and milk were analyzed by gel filtration on Sephadex G-200. The Blood displayed a gradual reduction of(More)