Differential mRNA expression of alpha and beta estrogen receptor isoforms and GnRH in the left and right side of the preoptic and anterior hypothalamic area during the estrous cycle of the rat.

Abstract:

:Asymmetric mRNA expression was found in preoptic anterior and hypothalamic anterior areas of the two estrogen receptor isoforms and the gonadotropin-releasing hormone. On the right side of these areas, estrogen receptor alpha mRNA expression reached its peak on estrus day, while on the left side the peak was reached on proestrus day. Estrogen receptor beta mRNA expression peaked on both sides on the same day, diestrous-2 day, but at different hours, showing a sustained expression for the next measured hour on the left side, while peaking and dropping abruptly on the right side. Gonadotropin-releasing hormone also peaked on both sides on diestrous-2 day, being the left side peak expression significantly lower than the peak expression at the right side. The side expression differences suggest that different sides of the before mentioned areas may play different roles of endocrine reproductive functions, while differences of expression at different times may suggest interaction between sides for the same functions.

journal_name

Endocrine

journal_title

Endocrine

authors

Arteaga-López PR,Domínguez R,Cerbón MA,Mendoza-Rodríguez CA,Cruz ME

doi

10.1385/ENDO:21:3:251

subject

Has Abstract

pub_date

2003-08-01 00:00:00

pages

251-60

issue

3

eissn

1355-008X

issn

1559-0100

pii

ENDO:21:3:251

journal_volume

21

pub_type

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