Visualisation of the uptake of prolactin ( PRL ) in rat embryonic tissues

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dc.contributor.authorKarabulut, A. Kağan
dc.contributor.authorÜlger, Harun
dc.contributor.authorPratten, Margaret K.
dc.date.accessioned2020-03-26T16:26:49Z
dc.date.available2020-03-26T16:26:49Z
dc.date.issued1999
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractObjective: Evidences implicate roles for prolactin (PRL) in the regulation of embryonic growth. To clarify the roles of PRL in rat embryogenesis we examined the uptake and expression of the hormone in embryonic tissues. Methods: Nine and a half day postimplantation rat embryos were cultured in vitro for 44h in rat serum and serum depleted of low molecular weight molecules (retenate). The embryos were transferred to M199 for the last 4h, and 12.8 ng/ml rat PRL was added to culture medium for different times (4h - 15 min) and/or different temperatures (37ºC and 4ºC). As a control tissue, pituitary glands from 11.5 and 18.5d pregnant rats were used. Embryos and tissues were then examined by an indirect immunofluorescence protocol. Results: The pituitary glands showed positive immunoreactivity for anti-PRL antibody whilst there was no stain in the control brain tissue. Immunoreactivity was observed in embryos grown in rat serum, and intensity was much greater in the presence of additional rat PRL, whilst there was no immunoreactivity detected in those grown in retenate only. Shorter incubations and incubations at 37ºC caused a greater immunoreactivity for PRL, suggesting that this is an active and temperature dependent metabolic process. Conclusion: These results show the uptake and distribution of PRL by the yolk sac and embryonic tissues which might be interpreted for the presence of PRL receptors.en_US
dc.identifier.endpage19en_US
dc.identifier.issn1019-1941en_US
dc.identifier.issn1309-9469en_US
dc.identifier.issue1en_US
dc.identifier.startpage11en_US
dc.identifier.urihttp://www.trdizin.gov.tr/publication/paper/detail/T0RFd01EQT0=
dc.identifier.urihttps://hdl.handle.net/20.500.12395/16892
dc.identifier.volume12en_US
dc.indekslendigikaynakTR-Dizinen_US
dc.language.isoenen_US
dc.relation.ispartofMarmara Medical Journalen_US
dc.relation.publicationcategoryDiğeren_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectGenel ve Dahili Tıpen_US
dc.titleVisualisation of the uptake of prolactin ( PRL ) in rat embryonic tissuesen_US
dc.typeOtheren_US

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