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Altanbayar O, Amgalanbaatar A, Battogtokh C, Bayarjargal N, Belick D, Kohns Vasconcelos M, Mackenzie CR, Pfeffer K, Henrich B. Characterization of the cagA-gene in Helicobacter pylori in Mongolia and detection of two EPIYA-A enriched CagA types. Int J Med Microbiol 2022; 312:151552. [DOI: 10.1016/j.ijmm.2022.151552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 01/28/2022] [Accepted: 02/22/2022] [Indexed: 11/30/2022] Open
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Otgonjargal B, Batbaatar G, Pfeffer K, Bruhn T, Battogtokh C, Henrich B. A novel mba-based Real time PCR approach for genotyping of Ureaplasma parvum validated in a cohort of Mongolian mothers and offspring. Int J Med Microbiol 2018; 308:865-871. [PMID: 30100523 DOI: 10.1016/j.ijmm.2018.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 07/03/2018] [Accepted: 08/03/2018] [Indexed: 12/19/2022] Open
Abstract
The role of Ureaplasma parvum in abnormal outcomes of human pregnancy has been discussed controversially in the past. Of the 14 known ureaplasma serovars, the Ureaplasma parvum serovars 1, 3, 6 and 14, have been found to derive from smaller genomes. Serovars 3 and 6 have been described more often to cause complications in pregnancy. To elucidate the serovar distribution in U. parvum positive specimens of 200 Mongolian mothers and their offspring, a new set of mba-targeting PCRs was developed enabling a fast and reliable serovar differentiation by melting peak analysis in a Real time PCR approach or by conventional agarose gel electrophoresis. 92% maternal and 55% neonatal samples were retrospectively genotyped and a dominance of serovars 3 and 6 was detected while serovar 14 was almost absent. Transmission from mothers to newborns was detected in 83% of U. parvum positive neonates exhibiting serovar patterns identical to their mothers. No statistically significant correlation between a distinct serovar and pregnancy outcome could be detected. However, neonatal colonization with serovar 1 declined with progressing pregnancy suggesting that a higher ureaplasma load shortened pregnancy and thereby had a potential negative effect on offspring health. Our novel mba-based Real time PCR approach, which can also be used in conventional PCR and gel electrophoretic analysis, provides the proof of principle that the four U. parvum serovars 1, 3, 6 and 14 can be differentially detected and quantified. A larger scale study outside the scope of this work should be conducted to clarify the impact of serovar 1 on pregnancy outcome.
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Affiliation(s)
- B Otgonjargal
- Department of Microbiology and Immunology, School of Biomedicine, Mongolian National University of Medical Sciences, Zorig Street, Ulaanbaatar, 14210, Mongolia.
| | - G Batbaatar
- Department of Microbiology and Immunology, School of Biomedicine, Mongolian National University of Medical Sciences, Zorig Street, Ulaanbaatar, 14210, Mongolia.
| | - K Pfeffer
- Institute of Medical Microbiology and Hospital Hygiene, University Hospital, Heinrich-Heine-University Düsseldorf, University Street, Düsseldorf, 40225, Germany.
| | - T Bruhn
- Institute of Medical Microbiology and Hospital Hygiene, University Hospital, Heinrich-Heine-University Düsseldorf, University Street, Düsseldorf, 40225, Germany.
| | - C Battogtokh
- Department of Microbiology and Immunology, School of Biomedicine, Mongolian National University of Medical Sciences, Zorig Street, Ulaanbaatar, 14210, Mongolia.
| | - B Henrich
- Institute of Medical Microbiology and Hospital Hygiene, University Hospital, Heinrich-Heine-University Düsseldorf, University Street, Düsseldorf, 40225, Germany.
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Otgonjargala B, Becker K, Batbaatar G, Tsogtsaikhan S, Enkhtsetseg J, Enkhjargal A, Pfeffer K, Adams O, Battogtokh C, Henrich B. Effect of Mycoplasma hominis and cytomegalovirus infection on pregnancy outcome: A prospective study of 200 Mongolian women and their newborns. PLoS One 2017; 12:e0173283. [PMID: 28257513 PMCID: PMC5336298 DOI: 10.1371/journal.pone.0173283] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 02/09/2017] [Indexed: 11/18/2022] Open
Abstract
In Mongolia, diagnostic tests for the detection of the sexually transmitted mycoplasmas, ureaplasmas, Herpes simplex virus (HSV), and cytomegalovirus (CMV) are currently not routinely used in clinical settings and the frequency of these STIs are enigmatic. The prevalence of these STI pathogens were prospectively evaluated among 200 Mongolian pregnant women and their newborns and correlated with pregnancy outcome. TaqMan PCRs were used to detect bacterial and viral STI pathogens in pre-birth vaginal swabs of the pregnant women and in oral swabs of their newborns. A standardized questionnaire concerning former and present pregnancies was developed and linear regression analysis was used to correlate pathogen detection with pregnancy outcome. Ureaplasmas were the most prevalent of the tested pathogens (positive in 90.5% positive women and 47.5% newborns), followed by mycoplasmas (32.5% and 7.5%), chlamydia (14.5% and 7.5%), trichomonas (8.5% and 4.0%) and gonococcus (0.5% and 0%). CMV was found in 46.5% of the pregnant women and in 10.5% of their newborns, whereas HSV-2 was detected in only two mothers. Multiple regression analyses indicate that colonization of the mothers with U. urealyticum, M. hominis, T. vaginalis or CMV is associated with transmission to newborns and that transmission of M. hominis or CMV from Mongolian pregnant women to offspring is associated with reduced neonatal length and gestational age. Thus, diagnostic tests for their detection should be implemented in the clinical settings in Mongolia.
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Affiliation(s)
- Byambaa Otgonjargala
- Department of Microbiology and Immunology, School of Pharmacy and Biomedicine, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
| | - Kathrin Becker
- Department of Orthodontics, University Clinic, Düsseldorf, Germany
| | - Gunchin Batbaatar
- Department of Microbiology and Immunology, School of Pharmacy and Biomedicine, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
| | - Sandag Tsogtsaikhan
- Department of Microbiology and Immunology, School of Pharmacy and Biomedicine, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
| | - Jamsranjav Enkhtsetseg
- Department of Obstetrics and Gynecology, School of Medicine, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
| | - Altangerel Enkhjargal
- Center for Environmental Health and Toxicology, Public Health Institute, Ulaanbaatar, Mongolia
| | - Klaus Pfeffer
- Institute of Medical Microbiology and Hospital Hygiene, Heinrich-Heine-University, Düsseldorf, Germany
| | - Ortwin Adams
- Institute of Virology, Heinrich-Heine-University, Düsseldorf, Germany
| | - Chimeddorj Battogtokh
- Center for Environmental Health and Toxicology, Public Health Institute, Ulaanbaatar, Mongolia
| | - Birgit Henrich
- Institute of Medical Microbiology and Hospital Hygiene, Heinrich-Heine-University, Düsseldorf, Germany
- * E-mail:
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Orth D, Grif K, Erdenechimeg L, Battogtokh C, Hosbayar T, Strommenger B, Cuny C, Walder G, Lass-Flörl C, Dierich MP, Witte W. Characterization of methicillin-resistant Staphylococcus aureus from Ulaanbaatar, Mongolia. Eur J Clin Microbiol Infect Dis 2006; 25:104-7. [PMID: 16498522 DOI: 10.1007/s10096-006-0102-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
In order to expand current knowledge of the types of methicillin-resistant Staphylococcus aureus (MRSA) strains circulating in central Asia, six MRSA strains collected from hospitals in Ulaanbaatar, Mongolia during 2000-2002 were examined. Three strains possessed a staphylococcal cassette chromosome mec (SCCmec) element of type IV c, were sequence type (ST) 154 according to multilocus sequence typing (MLST), and contained lukS-lukF (Panton-Valentine leukocidin). Another three strains contained a SCCmec element of type III and were MLST type ST 239. Using automated ribotyping, the six MRSA strains were divided into four different EcoRI ribotypes, and two groups of isolates were distinguished by means of SmaI-macrorestriction patterns. In comparison to other countries, the incidence of MRSA in Mongolia is low.
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Affiliation(s)
- D Orth
- Department of Hygiene, Microbiology and Social Medicine, Innsbruck Medical University, Innsbruck, Austria
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