Cyclic AMP as an intracellular messenger of gonadotrophin-induced steroidogenesis during the development of the embryonic chick ovary

1. 1. Ovine luteinizing hormone (LH) stimulates cyclic AMP (cAMP) and progeterone production (P) throughout late ontogeny of the chick ovary and cAMP mimicks LH in stimulating P secretion but: 2. 2. P/cAMP ratios are lower at the earliest stages than at hatching, LH enhancing this tendency. 3. 3. Im...

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Autores principales:	González, Claudia Beatriz, Cantore de Ezcurra, María Leonor
Publicado:	1990
Materias:	cyclic amp luteinizing hormone progesterone radioisotope animal cell article chicken nonhuman ovary priority journal Animal Bucladesine Chick Embryo Cyclic AMP Female Forskolin Luteinizing Hormone Ovary Progesterone Second Messenger Systems Steroids Support, Non-U.S. Gov't Animalia Gallus gallus Ovis
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03050491_v96_n1_p53_Gonzalez http://hdl.handle.net/20.500.12110/paper_03050491_v96_n1_p53_Gonzalez
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_03050491_v96_n1_p53_Gonzalez
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spelling	paper:paper_03050491_v96_n1_p53_Gonzalez2025-07-30T18:08:00Z Cyclic AMP as an intracellular messenger of gonadotrophin-induced steroidogenesis during the development of the embryonic chick ovary González, Claudia Beatriz Cantore de Ezcurra, María Leonor cyclic amp luteinizing hormone progesterone radioisotope animal cell article chicken nonhuman ovary priority journal Animal Bucladesine Chick Embryo Cyclic AMP Female Forskolin Luteinizing Hormone Ovary Progesterone Second Messenger Systems Steroids Support, Non-U.S. Gov't Animalia Gallus gallus Ovis 1. 1. Ovine luteinizing hormone (LH) stimulates cyclic AMP (cAMP) and progeterone production (P) throughout late ontogeny of the chick ovary and cAMP mimicks LH in stimulating P secretion but: 2. 2. P/cAMP ratios are lower at the earliest stages than at hatching, LH enhancing this tendency. 3. 3. Immediately before hatching, on day 19 time-courses of LH stimulations of cAMP and P are different. 4. (4) cAMP and P respond differently to increasing doses of LH but similarly to increasing doses of forskolin. 5. (5) 1.5 mM dibutyryl cAMP (I) and 100 ng LH (II) increase P maximally, 2.5- and 3.3-fold respectively, but a mixture (I + II) increases P 7.5-fold. © 1990. Fil:González, C.B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cantore, M.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1990 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03050491_v96_n1_p53_Gonzalez http://hdl.handle.net/20.500.12110/paper_03050491_v96_n1_p53_Gonzalez
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	cyclic amp luteinizing hormone progesterone radioisotope animal cell article chicken nonhuman ovary priority journal Animal Bucladesine Chick Embryo Cyclic AMP Female Forskolin Luteinizing Hormone Ovary Progesterone Second Messenger Systems Steroids Support, Non-U.S. Gov't Animalia Gallus gallus Ovis
spellingShingle	cyclic amp luteinizing hormone progesterone radioisotope animal cell article chicken nonhuman ovary priority journal Animal Bucladesine Chick Embryo Cyclic AMP Female Forskolin Luteinizing Hormone Ovary Progesterone Second Messenger Systems Steroids Support, Non-U.S. Gov't Animalia Gallus gallus Ovis González, Claudia Beatriz Cantore de Ezcurra, María Leonor Cyclic AMP as an intracellular messenger of gonadotrophin-induced steroidogenesis during the development of the embryonic chick ovary
topic_facet	cyclic amp luteinizing hormone progesterone radioisotope animal cell article chicken nonhuman ovary priority journal Animal Bucladesine Chick Embryo Cyclic AMP Female Forskolin Luteinizing Hormone Ovary Progesterone Second Messenger Systems Steroids Support, Non-U.S. Gov't Animalia Gallus gallus Ovis
description	1. 1. Ovine luteinizing hormone (LH) stimulates cyclic AMP (cAMP) and progeterone production (P) throughout late ontogeny of the chick ovary and cAMP mimicks LH in stimulating P secretion but: 2. 2. P/cAMP ratios are lower at the earliest stages than at hatching, LH enhancing this tendency. 3. 3. Immediately before hatching, on day 19 time-courses of LH stimulations of cAMP and P are different. 4. (4) cAMP and P respond differently to increasing doses of LH but similarly to increasing doses of forskolin. 5. (5) 1.5 mM dibutyryl cAMP (I) and 100 ng LH (II) increase P maximally, 2.5- and 3.3-fold respectively, but a mixture (I + II) increases P 7.5-fold. © 1990.
author	González, Claudia Beatriz Cantore de Ezcurra, María Leonor
author_facet	González, Claudia Beatriz Cantore de Ezcurra, María Leonor
author_sort	González, Claudia Beatriz
title	Cyclic AMP as an intracellular messenger of gonadotrophin-induced steroidogenesis during the development of the embryonic chick ovary
title_short	Cyclic AMP as an intracellular messenger of gonadotrophin-induced steroidogenesis during the development of the embryonic chick ovary
title_full	Cyclic AMP as an intracellular messenger of gonadotrophin-induced steroidogenesis during the development of the embryonic chick ovary
title_fullStr	Cyclic AMP as an intracellular messenger of gonadotrophin-induced steroidogenesis during the development of the embryonic chick ovary
title_full_unstemmed	Cyclic AMP as an intracellular messenger of gonadotrophin-induced steroidogenesis during the development of the embryonic chick ovary
title_sort	cyclic amp as an intracellular messenger of gonadotrophin-induced steroidogenesis during the development of the embryonic chick ovary
publishDate	1990
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03050491_v96_n1_p53_Gonzalez http://hdl.handle.net/20.500.12110/paper_03050491_v96_n1_p53_Gonzalez
work_keys_str_mv	AT gonzalezclaudiabeatriz cyclicampasanintracellularmessengerofgonadotrophininducedsteroidogenesisduringthedevelopmentoftheembryonicchickovary AT cantoredeezcurramarialeonor cyclicampasanintracellularmessengerofgonadotrophininducedsteroidogenesisduringthedevelopmentoftheembryonicchickovary
_version_	1840321495392321536

Cyclic AMP as an intracellular messenger of gonadotrophin-induced steroidogenesis during the development of the embryonic chick ovary

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