Expression of alpha and beta XXXX receptors in the @entity1573 ovary.

@entity172 @entity43 @entity71980 @entity71979 @entity1573
The role of @entity172 in hen reproduction is well established. However, the distribution of @entity172 receptors in the @entity1573 ovary is unknown. Therefore, the mRNA expression of @entity71979 ( @entity71979 ) @entity172 receptors was examined within the ovaries of laying hens. Expression of ERs was determined by RT-PCR analysis. The presence of @entity71980 and @entity71979 mRNAs was found in the @entity43 and white, yellowish, small yellow and the largest preovulatory (F3-F1) follicles. @entity71980 and @entity71979 mRNAs were detected in the granulosa and theca layers of the walls of preovulatory follicles. The expression of @entity71980 mRNA was markedly higher than @entity71979 mRNA in all examined ovarian compartments. Within the ovary, the relative expression of both ER mRNAs depends on the follicular diameter and the layer of the follicular wall. The results demonstrate the expression of both @entity71980 mRNA and @entity71979 mRNA in all compartments of the @entity1573 ovary, suggesting different pathways of @entity172 action in the avian ovary. Much higher expression of @entity71980 mRNA indicates that this form of @entity172 receptor is predominant in the @entity1573 ovary. The clarification of the mechanism of @entity71980 and @entity71979 participation in the ovarian functions of birds necessitates further experiments examining ERs at the protein level.
