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Expression and distribution of Na, K-ATPase isoforms in the human uterus
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Floyd, R. V., Wray, S., Quenby, Siobhan, Martin-Vasallo, P. and Mobasheri, A. (2010) Expression and distribution of Na, K-ATPase isoforms in the human uterus. Reproductive Sciences, Vol.17 (No.4). pp. 366-376. doi:10.1177/1933719109355196 ISSN 1933-7191.
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Official URL: http://dx.doi.org/10.1177/1933719109355196
Abstract
Na, K-ATPase activity relies on the composition of its catalytic α, β, and FXYD constituents, all of which are expressed as multiple isoforms (4α, 4β, and 7 FXYD). We used reverse transcription polymerase chain reaction (RT-PCR) and immunohistochemistry to study Na, K-ATPase expression in uterine samples from nonlaboring elective and laboring emergency caesarean sections (CSs). Transcripts of α1 to 3, β1 to 3, and FXYD1 isoforms were detected in all samples, but FXYD2 was only present in hysterectomy samples. Abundant immunoreactivity of α1 and moderate α2 was localized in myometrial smooth muscle and secretory glands of all groups. Smooth muscle and gland epithelia showed diffuse cytoplasmic α3 immunoreactivity. β isoforms were detected in all groups but β3 showed much denser immunoreactivity in myometrial samples taken from women in labor. In pregnancy, there was a switch in isoform expression, resulting in increased β3 and decreased FXYD2 at the protein and messenger RNA (mRNA) levels. Na, K-ATPase isoform alterations may modulate uterine contractility during labor.
Item Type: | Journal Article | ||||
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Subjects: | R Medicine > RG Gynecology and obstetrics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School > Biomedical Sciences > Translational & Experimental Medicine > Reproductive Health ( - until July 2016) Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School |
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Journal or Publication Title: | Reproductive Sciences | ||||
Publisher: | Sage Publications, Inc. | ||||
ISSN: | 1933-7191 | ||||
Official Date: | April 2010 | ||||
Dates: |
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Volume: | Vol.17 | ||||
Number: | No.4 | ||||
Page Range: | pp. 366-376 | ||||
DOI: | 10.1177/1933719109355196 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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