In vitro effects of gonadotrophic and steroid hormones on the insterstitial cells of the chick embryo ovaries

Autores/as

  • Rodolfo Ávila Universidad Nacional de Córdoba - Facultad de Ciencias Médicas
  • María Elena Samar Universidad Nacional de Córdoba - Facultad de Ciencias Médicas
  • Sofía Parisi de Fabro Universidad Nacional de Córdoba - Facultad de Ciencias Médicas

DOI:

https://doi.org/10.31053/1853.0605.v48.n1-2.45108

Palabras clave:

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Resumen

Thc cii ibryonic gonads produce and secrete the steroid hormones that induce secondary sex differentiation in different species 1 - • The produetion of estrogeus, testosterone and progesterone l)v interstitial celis of the chick embryovary has been denionstrated in experiments in ovo and in vitro Estrogens would be responsible at the 7th day of in ovo incubation, of the evolution of the functional left ovary According to Case", onlv the celis of the gcrminative epithelium of the left ovary possess reCcptors for estrogens,
thus originating the formation of a cortcx in this functional gonad and not in the right une.

On the other hand, extragonadal facturs, such as gonadotrophins, would participate in gonadal differentiation. Invo1vemcnt of the bypophysis in the morphological and functional differentiation of the ovary in the chick embryo, has been considered in several studies 10 1 '-'u. Wbods and Week 18 established the functional hypophysealgonadal axis at 13 days of in ovo incabatían. However, the effects of individual gonadotrophins on the interstitial celis of the chick embryo remain unclear.

Avila et al. 7and Grassi Milano 14 observed that when the female gonads were cultured without steroid or gonadotropbic hormones at the start of differentiation an herrnaphrodite left ovary and a male right OnC were formed. Kyparissi and Vakolopoulu 15 observed that the inoculation in ovo of FSH at he end of ernbryonic developmeist lcd

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Biografía del autor/a

  • Rodolfo Ávila, Universidad Nacional de Córdoba - Facultad de Ciencias Médicas

    II Cátedra de Histología, Embriología y Genética e Instituto de Biolog´ía Celular 

  • María Elena Samar, Universidad Nacional de Córdoba - Facultad de Ciencias Médicas

    II Cátedra de Histología, Embriología y Genética e Instituto de Biolog´ía Celular 

  • Sofía Parisi de Fabro , Universidad Nacional de Córdoba - Facultad de Ciencias Médicas

    II Cátedra de Histología, Embriología y Genética e Instituto de Biolog´ía Celular 

Referencias

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Avila R. E., Samar M. E,, Fabro S. P. de: Ultrastructural changes of the left and right chick ovaries during enibryonic development. Comun. Biol. 8: 63-72, 1987.

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Publicado

1990-11-15

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Artículos Originales

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1.
Ávila R, Samar ME, Parisi de Fabro S. In vitro effects of gonadotrophic and steroid hormones on the insterstitial cells of the chick embryo ovaries . Rev Fac Cien Med Univ Nac Cordoba [Internet]. 1990 Nov. 15 [cited 2024 Dec. 28];48(1-2):13-8. Available from: https://revistas.unc.edu.ar/index.php/med/article/view/45108

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