Immunohistochemical distribution of oestrogen and progesterone receptors and tissue concentrations of oestrogens in the cervix of non-pregnant cows
- 1 January 2002
- journal article
- research article
- Published by CSIRO Publishing in Reproduction, Fertility and Development
- Vol. 14 (8) , 487-494
- https://doi.org/10.1071/rd02005
Abstract
An immunohistochemical study of the expression of oestrogen (ER) and progesterone receptors (PR) in different regions along the longitudinal and vertical axes of the cervix of non-pregnant cows was performed. Animals were separated into two groups depending on the presence or absence of a functional corpus luteum in their ovaries, as indicated by blood progesterone concentrations. The high progesterone group (HP4) had serum progesterone concentrations >2.0 ng mL–1 (n = 6) and the low progesterone group (LP4) had serum progesterone concentrations ≤0.5 ng mL–1 (n = 4). Significantly higher concentrations of oestrogen were found in the cervical tissue of animals in the LP4 group than those in the HP4 group (473 ± 53 v.149 ± 46 pg g–1 wet weight; PKeywords
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