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Artículo

In vitro effects of both dopaminergic and enkephalinergic antagonists on the ovarian growth of Cherax quadricarinatus (Decapoda, Parastacidae), at different periods of the reproductive cycle

Cahansky, Alejandra ValeriaIcon ; Medesani, Daniel AlbertoIcon ; Chaulet, AnoukIcon ; Rodriguez, Enrique MarceloIcon
Fecha de publicación: 01/2011
Editorial: Elsevier Science Inc
Revista: Comparative Biochemistry and Physiology Part A: Molecular and Integrative Physiology
ISSN: 1095-6433
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Biológicas

Resumen

The in vitro effect of both spiperone (dopaminergic antagonist) and naloxone (enkephalinergic antagonist), was assayed on small pieces of ovary dissected from C. quadricarinatus females, with the eventual addition of some neuroendocrine organs, such as thoracic ganglion or eyestalk tissue. The incorporation of tritiated leucine by the ovary was measured in order to estimate the ovarian growth. During the post-reproductive period, both mentioned antagonists were able to significantly stimulate the ovary in the presence of thoracic ganglion, but did not produce any significant effect in the preparation containing ovary and eyestalk tissue, or only ovary. No significant effects of the assayed antagonists were noted during the pre-reproductive period. These results were in accordance with previous models describing the neuroendocrine control of crustacean reproduction, and represent new findings about the hormonal context in different periods of the reproductive cycle of crayfish. Besides, by means of the experimental combination of the tested antagonists with dopamine or met-enkephalin, a new model dealing with the interaction of these two neurotransmitters on the hormonal secretion of thoracic ganglion has been proposed.
Palabras clave: Crayfish , Dopamine , Enkephalin , Naloxone , Ovary , Reproduction , Spiperone , Thoracic Ganglion
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)
Identificadores
URI: http://hdl.handle.net/11336/68147
DOI: http://dx.doi.org/10.1016/j.cbpa.2010.09.016
URL: https://www.sciencedirect.com/science/article/pii/S1095643310005003
Colecciones
Articulos(OCA CIUDAD UNIVERSITARIA)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Citación
Cahansky, Alejandra Valeria; Medesani, Daniel Alberto; Chaulet, Anouk; Rodriguez, Enrique Marcelo; In vitro effects of both dopaminergic and enkephalinergic antagonists on the ovarian growth of Cherax quadricarinatus (Decapoda, Parastacidae), at different periods of the reproductive cycle; Elsevier Science Inc; Comparative Biochemistry and Physiology Part A: Molecular and Integrative Physiology; 158; 1; 1-2011; 126-131
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