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Prevalence of cytomegalovirus, and its effect on the expression of inducible and endothelial nitric oxide synthases in Fallopian tubes collected from women with and without ectopic pregnancy

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European Journal of Clinical Microbiology & Infectious Diseases Aims and scope Submit manuscript

Abstract

To measure the prevalence of cytomegalovirus (CMV) infection in ectopic pregnancy (EP) and its effect on the expression of inducible and endothelial nitric oxide synthases (iNOS, eNOS) by Fallopian tubes (FT) bearing an EP. This was a prospective case–control study. Blood and tubal samples were collected from 84 Eps and 51 controls (20 total abdominal hysterectomy (TAH) during the luteal phase and another 31 tubal ligations). CMV IgM and IgG antibodies were measured by ELISA, and an IVD CE PCR kit was used to detect CMV in the FTs. iNOS and eNOS were measured by immunohistochemistry and quantitative RT-PCR in FTs obtained from CMV-positive EP (n = 12), and the results were compared with those obtained from CMV-negative EP (n = 11) and TAH (n = 8). The frequencies of CMV IgM (51.2 % vs 17.6 %), IgG (77.4 % vs 52.9 %) or both antibodies (41.6 % vs 11.7 %) were significantly higher in EP compared with control. CMV was more common by PCR in FTs from EP (21.4 %) than controls (5.9 %). Twelve women from the PCR positive EP cases (66.6 %) were also simultaneously positive for both CMV IgM & IgG antibodies and had higher expression of eNOS and iNOS at the protein and gene levels compared with negative EP and TAH. Tubal infection with CMV may lead to EP by increasing the production of endothelial and inducible NOS by the FT epithelial cells. Further studies are required to illustrate the role of CMV in the pathogenesis of EP.

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Acknowledgments

This project was funded by the National Science, Technology and Innovation Plan (MARRIFAH) — King Abdul Aziz City for Science and Technology (KACST), the Kingdom of Saudi Arabia, Award Number (11-MED2067-10).

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Authors and Affiliations

  1. Obstertics and Gynaecology Department, Maternity and Children Hospital, Al-Aziziyah, Ministry of Health, Jeddah, Kingdom of Saudi Arabia

    S. A. Batwa

  2. Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, Holy Makkah, PO Box 7607, Kingdom of Saudi Arabia

    A. M. Ashshi, J. Ahmad, S. Idris, A. Khojah, N. M. Al-Qadi & B. Refaat

  3. Pathology Department, Clinical Laboratories, Maternity and Children Hospital, Ministry of Health, Makkah, Kingdom of Saudi Arabia

    F. F. Kamfar

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  1. S. A. Batwa
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  4. J. Ahmad
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Correspondence to B. Refaat.

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Batwa, S.A., Ashshi, A.M., Kamfar, F.F. et al. Prevalence of cytomegalovirus, and its effect on the expression of inducible and endothelial nitric oxide synthases in Fallopian tubes collected from women with and without ectopic pregnancy. Eur J Clin Microbiol Infect Dis 35, 103–110 (2016). https://doi.org/10.1007/s10096-015-2514-7

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  • DOI: https://doi.org/10.1007/s10096-015-2514-7

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