An Algorithm of a Laboratory Examination of Patients for Neisseria Gonorrhoeae, Chlamydia Trachomatis, Mycoplasma Genitalium and Trichomonas Vaginalis Infections Using the Polymerase Chain Reaction and the Transcriptional Amplification Reaction

2015 ◽  
Vol 14 (2) ◽  
pp. 74
Author(s):  
A. E. Gushchin ◽  
P. G. Ryzhikh ◽  
G. A. Khayrullina ◽  
V. I. Kisina
Keyword(s):  
Polymerase Chain Reaction ◽  
Chlamydia Trachomatis ◽  
Neisseria Gonorrhoeae ◽  
Trichomonas Vaginalis ◽  
Mycoplasma Genitalium ◽  
Laboratory Examination ◽  
Chain Reaction ◽  
Polymerase Chain ◽  
Transcriptional Amplification ◽  
Amplification Reaction

UriSwab: an effective transport medium for nucleic acid detection of Chlamydia trachomatis, Mycoplasma genitalium and Neisseria gonorrhoeae

Sexual Health ◽  
2017 ◽  
Vol 14 (6) ◽  
pp. 502 ◽  
Author(s):  
Anna-Maria G. Costa ◽  
Suzanne M. Garland ◽  
Rebecca Guy ◽  
Handan Wand ◽  
Sepehr N. Tabrizi
Keyword(s):  
Polymerase Chain Reaction ◽  
Chlamydia Trachomatis ◽  
Neisseria Gonorrhoeae ◽  
Mixed Model ◽  
Mycoplasma Genitalium ◽  
Urine Samples ◽  
Sample Type ◽  
Chain Reaction ◽  
Increasing Trend ◽  
Polymerase Chain

Background Patient self-sampling allows for remote collection and return to clinic or laboratory by post. Urine samples, although convenient, are challenging to post. This study evaluated UriSwab (Copan, Brescia, Italy) as a collection and transport vessel for Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG) and Mycoplasma genitalium (MG) detection by polymerase chain reaction, compared with flocked swab and neat urine. Methods: Five replicates of each specimen type were prepared from previously characterised urine samples (n = 330), stored at room temperature (RT) or 37°C, then extracted on day 1, 3, 7, 10 and 16 (VERSANT kPCR Sample Prep System, Siemens, Munich, Germany). Crossing thresholds (Cq) from CT and NG detection (VERSANT CT/GC DNA 1.0 assay kit, Siemens) and MG detection (real-time polymerase chain reaction assay) were compared using logistic regression, stratified by sample type, temperature and analyte. Mixed-model statistical techniques were used to assess correlation between repeated observations. Results: UriSwab showed an increasing trend in Cq values at RT and 37°C for CT and NG, and RT for MG (all P < 0.01). UriSwab was not statistically significantly different to neat urine, except CT at RT (0.83, 95% confidence interval: 0.51–1.15). Flocked swab similarly showed increasing Cq values at 37°C for CT, a significant decreasing trend at RT for MG and increasing trend at 37°C for MG. Flocked swab was not statistically significantly different from neat urine at RT and 37°C for CT and MG. Conclusion: UriSwab allows transport of urine for CT, NG and MG detection regardless of storage time or temperature, suggesting that CT and NG are stable for up to 16 days and MG up to 10 days.

Prevalence of Mycoplasma genitalium in men with gonococcal urethritis

1996 ◽  
Vol 7 (6) ◽  
pp. 443-444 ◽  
Author(s):  
M Uno ◽  
T Deguchi ◽  
H Komeda ◽  
M Yasuda ◽  
M Tamaki ◽  
...  
Keyword(s):  
Polymerase Chain Reaction ◽  
Chlamydia Trachomatis ◽  
Enzyme Immunoassay ◽  
Mycoplasma Genitalium ◽  
Chain Reaction ◽  
Gonococcal Urethritis ◽  
Japanese Male ◽  
Male Patients ◽  
Polymerase Chain

A significant association of Mycoplasma genitalium with non-gonococcal urethritis has been reported, but the prevalence of this mycoplasma in men with gonococcal urethritis has not been so well studied. In this study, we examined urethral swab specimens from 45 Japanese male patients with gonococcal urethritis for the presence of M. genitalium by using a polymerase chain reaction-based assay. We also sought Chlamydia trachomatis by an enzyme immunoassay Chlamydiazyme . Of the 45 specimens, 2 4.4 were positive for the mycoplasma and 12 26.7 were positive for C. trachomatis. The findings suggest that M. genitalium may be a cause not only of non-gonococcal urethritis but also of postgonococcal urethritis.

scholarly journals POLYMERASE CHAIN REACTION AS A DIAGNOSTIC TOOL FOR SIX SEXUALLY TRANSMITTED INFECTIONS - PRELIMINARY RESULTS

2015 ◽  
Vol 88 (1) ◽  
pp. 33-37
Author(s):  
Alecsandra Iulia Grad ◽  
Mihaela Laura Vica ◽  
Horea Vladi Matei ◽  
Doru Lucian Grad ◽  
Ioan Coman ◽  
...  
Keyword(s):  
Polymerase Chain Reaction ◽  
Chlamydia Trachomatis ◽  
Neisseria Gonorrhoeae ◽  
Sexually Transmitted Infections ◽  
Sensitivity And Specificity ◽  
Diagnostic Tool ◽  
High Sensitivity ◽  
Chain Reaction ◽  
Sexually Transmitted ◽  
Polymerase Chain

Background and aim. Sexually transmitted infections are a very frequent and under-diagnosed cause of illness worldwide. A high number of detection methods and a large range of specimens in which sexually transmitted infections can be determined are available at the moment. Polymerase chain reaction performed on first void urine offers the advantage of being non-invasive, self-collectable and has high sensitivity and specificity. We looked to determine the frequency of Chlamydia trachomatis, Neisseria gonorrhoeae, Trichomonas vaginalis, Mycoplasma hominis, Mycoplasma genitalium and Ureaplasma urealyticum in symptomatic and asymptomatic patients.Methods. Six sexually transmitted infections were determined in the first void urine of 15 symptomatic and asymptomatic patients by polymerase chain reaction. We used “Epicenter MasterPure™ Complete DNA and RNA Purification Kit” for the DNA purification and “Seeplex® STD6 ACE Detection” for the DNA amplification. The results were examined in UV light.Results. A number of 5 patients had positive results for Chlamydia trachomatis or Neisseria gonorrhoeae. Sexually transmitted infections are more frequent in men between 27 and 40 years old.Conclusions. Polymerase chain reaction is a good diagnostic tool for sexually transmitted infections because it has a high sensitivity and specificity. Chlamydia trachomatis is the most frequent sexually transmitted infection, followed by Neisseria gonorrhoeae.

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