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Lipopolysaccharide (LPS) disrupts particle transport, cilia function and sperm motility in an ex vivooviduct model
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File | Description | Size | Format | |
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SREP24583-AOD.pdf | 1.07 MB |
Author(s)
Date Issued
15 April 2016
Date Available
03T16:34:29Z October 2016
Abstract
The oviduct functions in the transportation of gametes to the site of fertilization (the ampulla) and is the site of early embryonic development. Alterations of this early developmental environment, such as the presence of sexually transmitted pathogens, may affect oviduct function leading to reduced fertilization rates and contribute to compromised embryonic development. In this study, sperm interactions, particle transport speed (PTS) and cilia beat frequency (CBF) in the ampulla following exposure to lipopolysaccharide (LPS), a constituent of the sexually transmitted pathogens Chlamydia trachomatis and Chlamydia abortus, was investigated. Three complementary experiments were performed to analyse; (1) bound sperm motility and cilia function (2) transport velocity in the oviduct and (3) the expression of genes related to immune function and inflammatory response (CASP3, CD14, MYD88, TLR4 and TRAF6). The motility of bound sperm was significantly lower in ampullae that were exposed to LPS. CBF and PTS significantly increased after treatment with LPS for 2 hours. Finally, gene expression analysis revealed that CASP3 and CD14 were significantly upregulated and TLR4 trended towards increased expression following treatment with LPS. These findings provide an insight on the impact of LPS on the oviduct sperm interaction, and have implications for both male and female fertility.
Type of Material
Journal Article
Publisher
Nature Publishing Group
Journal
Scientific Reports
Volume
6
Web versions
Language
English
Status of Item
Peer reviewed
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