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Revista Argentina de Endocrinología y Metabolismo
Article . 2017 . Peer-reviewed
License: CC BY NC ND
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Polimorfismos del receptor D2

Authors: Céspedes, María Eugenia;

Polimorfismos del receptor D2

Abstract

Resumen Los prolactinomas son tumores bien diferenciados que se originan en las celulas lactotropas pituitarias, una linea celular que secreta fisiologicamente prolactina (PRL). A nivel hipofisario, la dopamina esta implicada en la regulacion de la secrecion de PRL por las celulas lactotropas y este efecto inhibitorio esta mediado por la activacion del receptor de prolactina tipo 2 (DRD2). Hay varios polimorfismos del DRD2, el primero y mas estudiado es TaqI A1; esta demostrado que este alelo se encuentra asociado a una reduccion de la actividad cerebral dopaminergica, ademas de observarse una reduccion en su capacidad de union de aproximadamente un 30%. Este alelo se ha vinculado con una menor densidad de DRD2 en el cuerpo estriado, especialmente en el putamen y caudado ventral, y la cantidad de DRD2 en portadores del alelo A1 fue un 30-40% mas bajo que en los no portadores (es decir, TaqI A2 homocigotos). En la literatura, hay evidencia que apoya la posible participacion de los polimorfismos DRD2 en la regulacion de la secrecion hormonal.

Keywords

Endocrinology, Endocrinology, Diabetes and Metabolism

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
gold