In this study, we investigated the prevalence of Ureaplasma urealyticum and Mycoplasma hominis infection among 250 unselected infertile men, the presence of urogenital symptoms in infected men and the effects of these microorganisms on the conventional sperm parameters. Urethral samples were obtained using a swab inserted 3-4 cm into the urethral meatus. Ureaplasma urealyticum and Mycoplasma hominis were detected by the kit Mycofast R evolution 3 Elitech Microbiology (Elitech Microbiology, Signes, France). Ureaplasma urealyticum was detected in 15.6% of the cases and Mycoplasma hominis in 3.6%. One patients had a co-infection with both pathogens. About 41% of the infertile patients with mycoplasma infection had urogenital symptoms. A lower number of patients with mycoplasma infection had normal sperm parameters compared with non-infected infertile men, but this frequency showed only a trend compared to non-infected patients (Chi-square=3.61; P=0.057), and a significantly higher percentage of patients with oligo-astheno-teratozoospermia (Chi-square=127.3; P<0.0001), or asthenozoospermia alone (Chi-square=5.74; P<0.05) compared to non-infected infertile patients. In conclusion, this study showed an elevated prevalence of Ureaplasma urealyticum and Mycoplasma hominis infection in unselected men attending an infertility outpatient clinic and that the presence of these microorganisms is associated with a higher percentage of patients with abnormal sperm parameters.
"The share of an infectious agent in general prevalence of DED may vary depending on the prevalence of this agent in the population. A rather high prevalence of ocular (conjunctival) C. trachomatis infection in persons aged 25–45 years may be related to the increased risk for urogenital infections for this age group [8–10]. Here, the infection can be transmitted to the conjunctiva by contact or hematogenously . "
[Show abstract][Hide abstract] ABSTRACT: Aim. To determine the frequency of detection of conjunctival C. trachomatis (CT), M. hominis (MH), and U. urealyticum (UU) infections in young adults with dry eye disease (DED), since these infections may potentially produce the chronic subclinical inflammation characteristic of DED. Materials and Methods. The study included subjects of 25-45 years of age, divided into the DED (n = 114) and nondry eye control (n = 98) groups, with the diagnosis based on self-reported complaints, biomicroscopy, the Schirmer I test, and break-up time. All patients had conjunctival scrapings taken to detect CT, MH, and UU with direct fluorescent-antibody assay kits. Results. At least one of the three microorganisms was found in 87.7% of the DED patients versus 8.2% of the controls. Of all the DED patients, 63.2%, 50.8%, and 42.1% were found to be infected with CT, MH, and UU, respectively. Multiple pathogens were identified in 65% of the DED patients found to be infected. CT infection was detected in 6.1% of the controls. Conclusion. C. trachomatis, M. hominis, and U. urealyticum were detected with high frequency in the conjunctiva of young adults with DED and may be an important risk factor for DED in them.
Journal of Ophthalmology 05/2014; 2014:154627. DOI:10.1155/2014/154627 · 1.43 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: Por más de 30 años se ha sugerido que las infecciones seminales causadas por micoplasmas promueven el deterioro de la funcionalidad de los espermatozoides humanos. Sin embargo, los estudios al respecto han mostrado resultados contradictorios. En esta revisión presentamos las evidencias recientes de estudios in vitro que confi rman que Mycoplasma hominis, Ureaplasma urealyticum, U. parvum y M. genitalium
pueden adherirse e invadir los espermatozoides humanos viables y móviles. Así mismo discutiremos cómo estas infecciones pueden causar: a) estrés oxidativo en los espermatozoides; b) interrupción de los mecanismos de producción de energía que alteran la movilidad y viabilidad espermática; c)
desorganización de la estructura nuclear y celular por efecto de las endonucleasas, fosfolipasas y aminopeptidasas bacterianas; d) enmascaramiento de los receptores quimiotácticos
y obstaculización de la fecundación, y e) compromiso de la integridad de la membrana espermática, con exposición de autoantígenos y respuesta autoinmune.
Palabras clave: Infertilidad masculina, micoplasmas,
Perinatología y reproducción humana / INPer 01/2013; 27(1):21-34.
[Show abstract][Hide abstract] ABSTRACT: This work describes a self-contained, simple, disposable, and inexpensive gel capillary cassette for DNA amplification in near point of care settings. The cassette avoids the need for pumps or valves during raw sample delivery or polymerase chain reaction (PCR) amplification steps. The cassette contains capillary reaction units that can be stored at room temperature for up to 3 months. The current cassette configuration format simultaneously tests up to 16 patients for two or more targets, accommodates different sample types on the same cassette, has integrated positive and negative controls and allows flexibility for multiple geometries. PCR reagents in the cassette are desiccated to allow storage at room temperature with rehydration by raw sample at the time of testing. The sample is introduced to the cassette via a transfer pipette simply by capillary force. DNA amplification was carried out in a portable prototype instrument for PCR thermal cycling with fluorescence detection of amplified products by melt curve analysis (MCA). To demonstrate performance, raw genital swabs and urine were introduced to the same cassette to simultaneously detect four sexually transmitted infections. Herpes Simplex Viruses (HSV-1 and HSV-2) were detected from raw genital swabs. Ureaplasma urealyticum (UU) and Mycoplasma homonis (MH) were detected from raw urine. Results for multiple patients were obtained in as little as 50 min. This platform allows multiparameter clinical testing with a pre-assembled cassette that requires only the introduction of raw sample. Modification of the prototype device to accommodate larger cassettes will ultimately provide high throughput simultaneous testing of even larger numbers of samples for many different targets, as is required for some clinical applications. Combinations of wax and/or polymer cassettes holding capillary reaction units are feasible. The components of the cassette are suited to mass production and robotic assembly to produce a readily manufactured disposable reaction cassette that can be configured for disease-specific testing panels. Rapid testing with a disposable reaction cassette on an inexpensive instrument will enable on the spot evaluation of patients in the clinic for faster medical decision-making and more informed therapeutic choices.
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Lab on a Chip 03/2013; DOI:10.1039/c3lc41419a · 6.12 Impact Factor
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