ArticleBMC microbiology2016
Prevalence of plasmid-bearing and plasmid-free Chlamydia trachomatis infection among women who visited obstetrics and gynecology clinics in Malaysia.
Article in BMC microbiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 17 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
17 citing papers in PubMed, 34 citations in OpenAlex.
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- Serum IgG1 and IgG3 Antibody Responses to Chlamydia trachomatis Pgp3 and Hsp60 in Tubal Factor Infertility.The Journal of infectious diseases · 2025Article
- Antibody responses toFrontiers in cellular and infection microbiology · 2024Article
- The serodiagnositic value ofFrontiers in public health · 2024Article
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- Association between Chlamydial Infection with Ectopic and Full-Term Pregnancies: A Case-Control Study.Tropical medicine and infectious disease · 2022Article
- The role of tryptophan inFrontiers in cellular and infection microbiology · 2022Review
- Podoplanin Drives Motility of Active MacrophageFrontiers in immunology · 2021Article
- Article
- The Nature and Extent of Plasmid Variation inMicroorganisms · 2020Article
- Review
- Article
- Review
- Genomic analyses of the Chlamydia trachomatis core genome show an association between chromosomal genome, plasmid type and disease.BMC genomics · 2018Article
- Nonpathogenic Colonization with Chlamydia in the Gastrointestinal Tract as Oral Vaccination for Inducing Transmucosal Protection.Infection and immunity · 2018Article
- Comparative study in infertile couples with and without Chlamydia trachomatis genital infection.Reproductive health · 2017Article
- Review
Corrections and comments
- Erratum issued
Authors and funding
13 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe 7.5 kb cryptic plasmid of Chlamydia trachomatis has been shown to be a virulence factor in animal models, but its significance in humans still remains unknown. The aim of this study was to investigate the prevalence and potential involvement of the C. trachomatis cryptic plasmid in causing various clinical manifestations; including infertility, reproductive tract disintegrity, menstrual disorder, and polycystic ovarian syndrome (PCOS) among genital C. trachomatis-infected patients.
resultsA total of 180 female patients of child bearing age (mean 30.9 years old, IQR:27-35) with gynecological complications and subfertility issues, who visited Obstetrics and Gynecology clinics in Kuala Lumpur, Malaysia were recruited for the study. Prevalence of genital chlamydial infection among these patients was alarmingly high at 51.1% (92/180). Of the 92 chlamydia-infected patients, 93.5% (86/92) were infected with plasmid-bearing (+) C. trachomatis while the remaining 6.5% (6/92) were caused by the plasmid-free (-) variant. Our data showed that genital C. trachomatis infection was associated with infertility issues, inflammation in the reproductive tract (mucopurulent cervicitis or endometriosis), irregular menstrual cycles and polycystic ovarian syndrome (PCOS). However, no statistical significance was detected among patients with plasmid (+) versus plasmid (-) C. trachomatis infection. Interestingly, plasmid (+) C. trachomatis was detected in all patients with PCOS, and the plasmid copy numbers were significantly higher among PCOS patients, relative to non-PCOS patients.
conclusionOur findings show a high incidence of C. trachomatis infection among women with infertility or gynecological problems in Malaysia. However, due to the low number of plasmid (-) C. trachomatis cases, a significant role of the plasmid in causing virulence in human requires further investigation of a larger cohort.
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