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Published on: September 3, 2012
Detection of Ureaplasma spp. serovars in genital tract of infertile males
Tiejun Song1, Zhiwei Liu1, Ying Zhang1
1Department of Clinical Laboratory, Sir Run Run Shaw hospital, School of medicine, Zhejiang University, Hangzhou, China.
Background:
The colonization of Ureaplasma species in genital tract is related with male infertility. However, it has been postulated based upon limited study that virulence is related to serotype specificity. The aim of this study was to determine the distribution of Ureaplasma serovars in genital tract of infertile males and analyze their role in male infertility.
Methods:
A total of 358 urethral swabs samples were obtained from infertile males. The culture of Ureaplasma species were performed using a commercially available Mycoplasma IST 2 kit. Serovars were determined by real-time polymerase chain reaction (real-time PCR).
Results:
A total of 92 (25.7%) infertile males were positive for Ureaplasma spp; among them, Ureaplasma parvum (UPA) was detected in 73 (79.3%) isolates, and Ureaplasma urealyticum (UUR) was detected in 19 (20.7%) isolates. Serovars 1, 6, or in combination accounted for 63.0% (46/73) of UPA isolates. Serovar 9 (alone and in combination of other serovars) was the most common serovar in UUR (47.4%, 9/19). Multiple serovars were detected in 21 (22.8%) isolates, and serovars 4, 5, 7, and 12 were not detected in any sample.
Conclusion:
The distribution of 14 Ureaplasma serovars in genital tract of infertile males was identified for the first time by real-time PCR assay. UPA serovars 1 and 6, and UUR serovar 9 are the most common serovars colonization in urogenital tract of infertile males.
Insights
Ureaplasma species colonization is linked to male infertility. Ureaplasma parvum serovars 1 and 6, and Ureaplasma urealyticum serovar 9 are most common in infertile males.
Area of Science:
- Microbiology
- Reproductive Medicine
- Genitourinary Health
Background:
- Ureaplasma species colonization in the genital tract is associated with male infertility.
- Limited studies suggest a link between Ureaplasma virulence and specific serotypes.
- Understanding serovar distribution is crucial for diagnosing and managing male infertility.
Purpose of the Study:
- To determine the prevalence of Ureaplasma serovars in infertile males.
- To analyze the association between specific Ureaplasma serovars and male infertility.
- To identify common Ureaplasma serovars in the male genital tract.
Main Methods:
- Analysis of 358 urethral swab samples from infertile males.
- Ureaplasma species identification using the Mycoplasma IST 2 kit.
- Serovar determination via real-time polymerase chain reaction (real-time PCR).
Main Results:
- Ureaplasma spp. detected in 25.7% (92/358) of infertile males.
- Ureaplasma parvum (UPA) found in 79.3% (73/92) and Ureaplasma urealyticum (UUR) in 20.7% (19/92) of positive cases.
- Common UPA serovars were 1 and 6 (63.0%); common UUR serovar was 9 (47.4%).
Conclusions:
- This study first identified the distribution of 14 Ureaplasma serovars in infertile males using real-time PCR.
- UPA serovars 1 and 6, and UUR serovar 9 are the most prevalent in the urogenital tracts of infertile males.
- Findings contribute to understanding the role of Ureaplasma serovars in male infertility.
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