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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todo:paper_03050491_v96_n1_p53_Gonzalez2023-10-03T15:21:22Z Cyclic AMP as an intracellular messenger of gonadotrophin-induced steroidogenesis during the development of the embryonic chick ovary González, C.B. Cantore, M.L. Lantos, C.P. Passeron, S. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, C.B. Cantore, M.L. Lantos, C.P. Passeron, S. 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. |
| format |
JOUR |
| author |
González, C.B. Cantore, M.L. Lantos, C.P. Passeron, S. |
| author_facet |
González, C.B. Cantore, M.L. Lantos, C.P. Passeron, S. |
| author_sort |
González, C.B. |
| 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 |
| url |
http://hdl.handle.net/20.500.12110/paper_03050491_v96_n1_p53_Gonzalez |
| work_keys_str_mv |
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1807320264538587136 |