Evidence of a role for prolactin as regulators of ovarian follicular development in goose

Background Prolactin (PRL) regulates development and reproduction, and its effects are mediated by the prolactin receptor (PRLR). In order to clarify the role of PRLR and PRL in the process of follicular development in the goose ovary, the level of PRLR mRNA expression in the ovary and follicles of...

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Autores principales: Ma,Rong, Jiang,Dongmei, Chen,Ziyu, Kang,Bo
Lenguaje:English
Publicado: Pontificia Universidad Católica de Valparaíso 2015
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000600001
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spelling oai:scielo:S0717-345820150006000012016-01-21Evidence of a role for prolactin as regulators of ovarian follicular development in gooseMa,RongJiang,DongmeiChen,ZiyuKang,Bo Postovulatory follicle Preovulatory follicle Prolactin receptor Prolactin Sichuan white goose Background Prolactin (PRL) regulates development and reproduction, and its effects are mediated by the prolactin receptor (PRLR). In order to clarify the role of PRLR and PRL in the process of follicular development in the goose ovary, the level of PRLR mRNA expression in the ovary and follicles of the Sichuan white goose was determined, as well as the PRL concentration in ovarian follicles. Results The level of PRLR mRNA in the hierarchical follicles (HFs) initially increased, and subsequently decreased, whereas PRLR expression was initially low and later increased in postovulatory follicles (POFs). The level of PRLR mRNA expression was the highest in the F4 follicles, and lowest in the F1 follicles in all of the examined follicles. Compared with the level of PRLR mRNA expression in the small white follicles (SWFs), the level of PRLR mRNA was 2.86- and 1.44-fold higher in the F4 and small yellow follicles (SYFs), respectively (P < 0.05). The level of PRLR mRNA expression in the F4 follicles was highest (P < 0.05) in HFs. The highest PRL concentration in all of the examined samples was observed in SYFs and F1, with concentration of 6162 mLU/g and 6197 mLU/g, respectively. The PRL concentration in SYFs was significantly higher compared with SWFs (P < 0.05). Conclusions The change of PRL concentration was similar to the PRLR mRNA expression level in preovulatory follicles. These results suggest that the PRL mediated by the PRLR plays a stimulatory role in the SWF to SYF transition.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.18 n.6 20152015-11-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000600001en10.1016/j.ejbt.2015.08.003
institution Scielo Chile
collection Scielo Chile
language English
topic Postovulatory follicle
Preovulatory follicle
Prolactin receptor
Prolactin
Sichuan white goose
spellingShingle Postovulatory follicle
Preovulatory follicle
Prolactin receptor
Prolactin
Sichuan white goose
Ma,Rong
Jiang,Dongmei
Chen,Ziyu
Kang,Bo
Evidence of a role for prolactin as regulators of ovarian follicular development in goose
description Background Prolactin (PRL) regulates development and reproduction, and its effects are mediated by the prolactin receptor (PRLR). In order to clarify the role of PRLR and PRL in the process of follicular development in the goose ovary, the level of PRLR mRNA expression in the ovary and follicles of the Sichuan white goose was determined, as well as the PRL concentration in ovarian follicles. Results The level of PRLR mRNA in the hierarchical follicles (HFs) initially increased, and subsequently decreased, whereas PRLR expression was initially low and later increased in postovulatory follicles (POFs). The level of PRLR mRNA expression was the highest in the F4 follicles, and lowest in the F1 follicles in all of the examined follicles. Compared with the level of PRLR mRNA expression in the small white follicles (SWFs), the level of PRLR mRNA was 2.86- and 1.44-fold higher in the F4 and small yellow follicles (SYFs), respectively (P < 0.05). The level of PRLR mRNA expression in the F4 follicles was highest (P < 0.05) in HFs. The highest PRL concentration in all of the examined samples was observed in SYFs and F1, with concentration of 6162 mLU/g and 6197 mLU/g, respectively. The PRL concentration in SYFs was significantly higher compared with SWFs (P < 0.05). Conclusions The change of PRL concentration was similar to the PRLR mRNA expression level in preovulatory follicles. These results suggest that the PRL mediated by the PRLR plays a stimulatory role in the SWF to SYF transition.
author Ma,Rong
Jiang,Dongmei
Chen,Ziyu
Kang,Bo
author_facet Ma,Rong
Jiang,Dongmei
Chen,Ziyu
Kang,Bo
author_sort Ma,Rong
title Evidence of a role for prolactin as regulators of ovarian follicular development in goose
title_short Evidence of a role for prolactin as regulators of ovarian follicular development in goose
title_full Evidence of a role for prolactin as regulators of ovarian follicular development in goose
title_fullStr Evidence of a role for prolactin as regulators of ovarian follicular development in goose
title_full_unstemmed Evidence of a role for prolactin as regulators of ovarian follicular development in goose
title_sort evidence of a role for prolactin as regulators of ovarian follicular development in goose
publisher Pontificia Universidad Católica de Valparaíso
publishDate 2015
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000600001
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AT jiangdongmei evidenceofaroleforprolactinasregulatorsofovarianfolliculardevelopmentingoose
AT chenziyu evidenceofaroleforprolactinasregulatorsofovarianfolliculardevelopmentingoose
AT kangbo evidenceofaroleforprolactinasregulatorsofovarianfolliculardevelopmentingoose
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