1.Detection and Isolation of Genital Mycoplasmas from Public Toilet Bowls.
Je Wook YEON ; Myoung Woong CHANG ; Kwang Hyuk KIM
Journal of Bacteriology and Virology 2002;32(3):231-238
Genital mycoplasmas are sexually transmitted. There are considerable public concern that causative agents of sexually transmitted diseases might be transmitted nonsexually through public restrooms. In the present study, Mycoplasma hominis, Ureaplasma urealyticum and M. penetrans among genital mycoplasmas were identified in 100 public restroom toilet bowls (50 men's and 50 women's public restrooms, each). Mycoplasmas were genotypically identified by two methods; (1) PCR of primary selective culture and (2) direct PCR of original specimens before primary selective culture. From 50 men's public restrooms, M. hominis, U. urealyticum and M. penetrans were identified from PCR of primary selective cultures in 6%, 4% and 0% of the specimens, respectively and M. hominis and U. urealyticum was codetected in 2% of those. And M. hominis, U. urealyticum and M. penetrans were identified by direct PCR in 20%, 16% and 0% of the original specimens, respectively and co-detection rate of M. hominis and U. urealyticum was 4% in those. From 50 women's public restrooms, 38% was positive for M. hominis, 14% for U. urealyticum, 0% for M. penetrans and 10% for both U. urealyticum and M. penetrans by PCR of primary selective culture. And 50% was positive for M. hominis, 46% for U. urealyticum and 0% for M. penetrans and 34% for both M. hominis and U. urealyticum by direct PCR of the original specimens. These results indicate that the genital mycoplasmas can survive for considerable duration in toilet bowels, and might be transmitted by through public restrooms.
Mycoplasma hominis
;
Mycoplasma penetrans
;
Mycoplasma*
;
Polymerase Chain Reaction
;
Sexually Transmitted Diseases
;
Ureaplasma urealyticum
2.An improved multiplex PCR for diagnosis and differentiation of Mycoplasma hyopneumoniae and Mycoplasma hyorhinis.
Abhijit K BARATE ; Hwi Young LEE ; Hye Won JEONG ; Lam Quang TRUONG ; Hong Gu JOO ; Tae Wook HAHN
Korean Journal of Veterinary Research 2012;52(1):39-43
A multiplex PCR was developed for the simultaneous detection and differentiation of Mycoplasma (M.) hyopneumoniae and M. hyorhinis in clinical samples. Improved sensitivity is advantage of this technique over the previously reported multiplex assay. It was capable of detecting as little as 125 fg genomic DNA from M. hyopneumoniae and 62.5 fg genomic DNA from M. hyorhinis. Application of this multiplex PCR method to field isolates showed that M. hyopneumoniae and M. hyorhinis were present in 29% (107 of 370) of lung specimens and no mycoplasmas were detected in 56% (208 of 370) of the slaughtered pigs' lungs. At the farm level, M. hyopneumoniae and M. hyorhinis were detected in 34 of 36 (94.4%) randomly selected farms. We conclude that this assay would prove itself a value tool for monitoring these mycoplasmal infections and both M. hyopneumoniae and M. hyorhinis have been widely spread in swine herds of Korea.
DNA
;
Imidazoles
;
Korea
;
Lung
;
Multiplex Polymerase Chain Reaction
;
Mycoplasma
;
Mycoplasma hyopneumoniae
;
Mycoplasma hyorhinis
;
Nitro Compounds
;
Swine
3.In vitro antibiotic susceptibility of field isolates of Mycoplasma hyopneumoniae and Mycoplasma hyorhinis from Korea.
Jisung JANG ; Kiju KIM ; Soyeon PARK ; Bokyoung PARK ; Hyungmin UM ; Marc COULIER ; Tae Wook HAHN
Korean Journal of Veterinary Research 2016;56(2):109-111
The present study was conducted to determine the antibiotic susceptibilities of local Mycoplasma hyopneumoniae (Mhp) and Mycoplasma hyorhinis (Mhr) filed isolates. Minimum inhibitory concentrations (MICs) of Mhp and Mhr field isolates (twelve each) obtained from enzootic pneumonia-like lung lesions during 2009-2011 from Korea were determined using the broth microdilution method. Tylvalosin showed the highest activity against Mhp and Mhr field isolates, with MIC90 values of 0.06 µg/mL and 0.12 µg/mL, respectively. Therefore, Korean Mhp and Mhr isolates are highly susceptible to tylvalosin.
In Vitro Techniques*
;
Korea*
;
Lung
;
Methods
;
Microbial Sensitivity Tests
;
Mycoplasma hyopneumoniae*
;
Mycoplasma hyorhinis*
;
Mycoplasma*
4.Importance of Suspicion for the Identification of Mycoplasma in Wound Culture: A Case Report.
Sang Mee HWANG ; In Seon YOON ; Sei Ick JOO ; Jongyoun YI ; Eui Chong KIM
Korean Journal of Clinical Microbiology 2010;13(3):121-124
Genital mycoplasmas are rare in extraintestinal specimens, but can cause disseminated infections in immunocompromised patients and wound infections after surgery or injury. We report two cases of Myoplasma hominis wound infections after lung lobectomy and kidney transplantation, and a case of M. salivarium wound infection after aortic graft replacement. Mycoplasmas grew in aerobic and anaerobic cultures as tiny colonies but were not observed by gram- or acid fast stain and were confirmed by MYCOFAST EvolutioN 2 kit or 16S rRNA sequencing. These cases indicated that mycoplasmas were probably underestimated in wound infections because they were not in suspicion. We suggest that Mycoplasma should be suspected when microorganisms are not readily observable in Gram stains but can be cultured.
Coloring Agents
;
Immunocompromised Host
;
Kidney Transplantation
;
Lung
;
Mycoplasma
;
Mycoplasma hominis
;
Mycoplasma salivarium
;
Transplants
;
Wound Infection
5.Multiple Intraabdominal Abscesses Caused by Mycoplasma hominis Infection Following Simultaneous Pancreas-Kidney Transplantation.
Yumiko OKUMURA ; Toshiki KAJIHARA ; Yumiko KOBA ; Makoto ONODERA ; Toshinori HARA ; Hiroyuki TAHARA ; Hideki OHDAN ; Hiroki OHGE ; Michiya YOKOZAKI ; Motoyuki SUGAI
Annals of Laboratory Medicine 2018;38(4):381-383
No abstract available.
Abscess*
;
Mycoplasma hominis*
;
Mycoplasma*
6.Association of sexually transmitted infection with semen quality in men from couples with primary and secondary infertility.
Shun BAI ; Yuan LI ; Mei-Hong HU ; Li WU ; Li-Jun SHUI ; Xiao-Han WANG ; Yi-Xun LIU ; Qiu-Ling YUE ; Li-Na YU ; Kai-Qiang FU ; Xian-Hong TONG ; Xue-Chun HU ; Bo XU
Asian Journal of Andrology 2022;24(3):317-322
This study aims to compare the prevalence of sexually transmitted infections (STIs) with semen quality in men from couples with primary and secondary infertility. Semen samples were collected from 133 men who requested fertility evaluation. Seminal tract infection with Ureaplasma spp. (UU), Mycoplasma hominis (MH), Mycoplasma genitalium (MG), Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG), and herpes simplex virus-2 (HSV-2) was assessed by PCR-based diagnostic assays. Among all patients, the prevalence of STIs was higher in men from couples with primary infertility than that in men from couples with secondary infertility (39.7% vs 21.7%, P = 0.03). The prevalence of UU was 28.8% and 13.3% in men from couples with primary and secondary infertility, respectively. Men from couples with primary infertility were more likely to be positive for UU than men from couples with secondary infertility (P = 0.04). Regarding the UU subtype, the prevalence of Ureaplasma urealyticum (Uuu) and Ureaplasma parvum (Uup; including Uup1, Uup3, Uup6, and Uup14) did not differ between the two groups. No associations between the prevalence rates of MH, MG, and CT were found in men from either infertility group. A lower sperm concentration was associated with STI pathogen positivity in men with primary infertility according to the crude model (P = 0.04). The crude and adjusted models showed that semen volume (both P = 0.03) and semen leukocyte count (both P = 0.02) were independently associated with secondary infertility. These findings suggest the importance of classifying the type of infertility during routine diagnosis of seminal tract infections.
Female
;
Humans
;
Infertility, Male/epidemiology*
;
Male
;
Mycoplasma genitalium
;
Mycoplasma hominis
;
Prevalence
;
Semen
;
Semen Analysis
;
Sexually Transmitted Diseases/epidemiology*
;
Ureaplasma urealyticum
7.Detection of Cryptic Microorganisms in Patients with Chronic Prostatitis by Multiplex Polymerase Chain Reaction.
Tae Hyoung KIM ; Tae Heung KIM ; Hye Ryoun KIM ; Mi Kyung LEE ; Soon Chul MYUNG ; Young Sun KIM
Korean Journal of Urology 2007;48(3):304-309
PURPOSE: Chronic prostatitis frequently occurs in men of all ages. Recent studies suggest that fastidious microorganisms may play a role in chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS). The aim of this study was to evaluate the usefulness and significance of multiplex polymerase chain reaction (PCR) in the diagnosis of CP/CPPS. MATERIALS AND METHODS: First voided urine (FVU) and/or expressed prostatic secretions (EPS) were collected from 92 patients. Multiplex PCR, using Dual Specificity Oligo (DSO(TM)) primers, was used to test for Chlamydia trachomatis (CT), Mycoplasma genitalium (MG), Mycoplasma hominis (MH), Neisseria gonorrhoeae (NG), Trichomonas vaginalis (TV) and Ureaplasma urealyticum (UU). RESULTS: Multiplex PCR can be easily analyzed via visual comparison. Nine (39.1%) of the 23 CP/CPPS IIIa and 12 (17.4%) of the 69 IIIb patients had positive multiplex PCR, with a total of 27 microorganisms isolated, including CT, MH, MG, UU, TV and NG in 9, 7, 4, 4, 2 and 1 case, respectively. Co-infections with 2 or 3 organisms occurred in 5 cases. For the samples collected from 32 patients for both FVU and EPS, 68.7% gave the same results. CONCLUSIONS: Multiplex PCR, using DSO(TM) primers, can be useful for the simple detection of fastidious microorganisms in CP/CPPS. To achieve reliable results with multiplex PCR, feasible guidelines and standardization are of major importance. Further studies will be required to define the usefulness of molecular tests for CP/CPPS in clinical practice.
Chlamydia trachomatis
;
Coinfection
;
Diagnosis
;
Humans
;
Male
;
Multiplex Polymerase Chain Reaction*
;
Mycoplasma genitalium
;
Mycoplasma hominis
;
Neisseria gonorrhoeae
;
Pelvic Pain
;
Polymerase Chain Reaction
;
Prostatitis*
;
Sensitivity and Specificity
;
Trichomonas vaginalis
;
Ureaplasma urealyticum
8.Comparison of the Anyplex II STI-7 and Seeplex STD6 ACE Detection Kits for the Detection of Sexually Transmitted Infections.
Se Jin MOON ; Jung Eun CHOI ; Kwang Il PARK
Journal of Laboratory Medicine and Quality Assurance 2013;35(2):87-92
BACKGROUND: Sexually transmitted infections (STI) encompass a variety of clinical syndromes caused by many pathogens that are transmitted through sexual activity. Multiplex PCR is frequently used to detect STI. In this study, two multiplex real-time PCR-based assays were used to detect STI in clinical specimens, and the concordance of the results obtained by each method was evaluated. METHODS: A total of 626 specimens were tested using the Anyplex II STI-7 (Seegene, Korea) and Seeplex STD6 ACE Detection kits (Seegene). RESULTS: Among the 626 individuals tested, 227 (44.2%) tested positive for STI by using Anyplex II STI-7. The prevalence rates of the various infectious microorganisms detected were as follows: Chlamydia trachomatis (C. trachomatis), 19.2% (120/626); Neisseria gonorrhoeae (N. gonorrhoeae), 5.6% (35/626); Trichomonas vaginalis (T. vaginalis), 0.2% (1/626); Mycoplasma genitalium (M. genitalium), 8.1% (51/626); Mycoplasma hominis (M. hominis), 2.9% (18/626); Ureaplasma urealyticum (U. urealyticum), 17.6% (110/626); and Ureaplasma parvum, 3.7% (23/626). The concordance rates for the STI-7 and STD6 assays in detecting the various types of microorganism were as follows: C. trachomatis, (99.5%); N. gonorrhoeae, (99.7%); T. vaginalis, (100%); M. genitalium, (100%); M. hominis, (100%); and U. urealyticum (99.2%). CONCLUSIONS: A high degree of concordance was observed between the results obtained using the Anyplex II STI-7 kits and those obtained using the Seeplex STD6 ACE Detection kits.
Chlamydia trachomatis
;
Methods
;
Multiplex Polymerase Chain Reaction
;
Mycoplasma genitalium
;
Mycoplasma hominis
;
Neisseria gonorrhoeae
;
Prevalence
;
Sexual Behavior
;
Sexually Transmitted Diseases
;
Trichomonas vaginalis
;
Ureaplasma
;
Ureaplasma urealyticum
9.Comparative Evaluation of Multiplex Real-Time PCR Assays for Six Pathogens of Sexually Transmitted Infections.
Annals of Clinical Microbiology 2017;20(1):1-6
BACKGROUND: The multiplex real-time PCR assay is a sensitive test for simultaneous detection of various pathogens of sexually transmitted infections (STIs). We evaluated the performance of two multiplex real-time PCR assays for six STI pathogens. METHODS: DNA samples after being used to conduct PCR for STI pathogens were stored below −70℃. Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG), Mycoplasma genitalium (MG), Mycoplasma hominis (MH), Ureaplasma urealyticum (UU), and Trichomonas vaginalis (TV) were detected by multiplex real-time PCR with GeneFinder STD I (CT/NG/UU)/II (MG/MH/TV) Multiplex Real-time PCR Kits (Infopia, Korea; GeneFinder assay) and Real-Q CT&NG/MH&TV/MG&UU Kits (BioSewoom, Korea; Real-Q assay). Discrepant results were resolved by another multiplex real-time assay, Anyplex II STI-7 Detection (Seegene, Korea). Any two positive results for the assays were considered true positive. RESULTS: Among 81 samples, the GeneFinder assay detected 63 pathogens from 45 cases (16 CT, 2 NG, 6 MG, 20 MH, 18 UU, and 1 TV) and Real-Q assay detected 66 pathogens from 47 cases (16 CT, 2 NG, 8 MG, 20 MH, 19 UU, and 1 TV). For the results of positive cases and negative cases, the overall concordance rate between the two multiplex real-time assays was 93.8% (Kappa=0.87). For each pathogen, the agreement rates of the two assays ranged from 97.5 to 100% (Kappa>0.8). CONCLUSION: There was no significant difference between the results of GeneFinder assay and Real-Q assay. Both multiplex real-time PCR assays can be useful methods for the detection of STI pathogens in clinical laboratories.
Chlamydia trachomatis
;
DNA
;
Korea
;
Mycoplasma genitalium
;
Mycoplasma hominis
;
Neisseria gonorrhoeae
;
Polymerase Chain Reaction
;
Real-Time Polymerase Chain Reaction*
;
Sexually Transmitted Diseases*
;
Trichomonas vaginalis
;
Ureaplasma urealyticum
10.Detection of Cryptic Microorganisms by Polymerase Chain Reaction Assay in Chronic Pelvic Pain Syndrome.
Jae Sung HA ; Sae Woong KIM ; Yong Hyun CHO
Korean Journal of Urology 2002;43(5):396-401
PURPOSE: This study was undertaken to evaluate the usefulness, and significance, of polymerase chain reaction (PCR) in the diagnosis of chronic pelvic pain syndrome (CPPS), analyzing Chlamydia trachomatis, Trichomonas vaginalis, Mycoplasma hominis, Mycoplasma genitalium and Ureaplasma urealyticum as the main causative organisms of CPPS. MATERIAL AND METHODS: We used a PCR assay designed to detect C. trachomatis, T. vaginalis, M. hominis, M. genitalium and U. urealyticum in expressed prostatic secretions (EPS), or third voided urine specimens (VB3), of 359 patients diagnosed with CPPS. RESULTS: Among 359 patients, 125 patients (34.8%) were category IIIa and 234 patients (65.2%) were category IIIb. With the use of PCR, Ttwenty-one (16.8%) of the 125 category IIIa, and nineteen (8.1%) of the 234 category IIIb, patients were found to have positive PCRs for the causative organisms of CPPS. In total 43 isolates, of presenting positive PCR, the common causative microorganisms were C. trachomatis in 15 cases (34.9%), U. urealyticum in 14 cases (32.6%), M. genitalium in 13 cases (30.2%) and M. hominis in 1 case (2.3%). CONCLUSIONS: With the invention of PCR, the inconvenience to patients in the process of extracting causative microorganisms is reduced, and it has become possible to get a result within 2-4 hours in a technically less difficult way. Moreover, PCR shows nearly 100% accuracy in terms of sensitivity and specificity. PCR is expected to play an important role in way of diagnosis, and treatment, for chronic pelvic pain syndrome in urology.
Chlamydia trachomatis
;
Diagnosis
;
Humans
;
Inventions
;
Mycoplasma genitalium
;
Mycoplasma hominis
;
Pelvic Pain*
;
Polymerase Chain Reaction*
;
Prostatitis
;
Sensitivity and Specificity
;
Trichomonas vaginalis
;
Ureaplasma urealyticum
;
Urology