1.A comparison of PCR and LAMP methods for detecting shiga toxin producing Escherichia coli
Nyamtuya N ; Sarantuya J ; Munkhdelger Ya ; Amgalanzaya D
Mongolian Medical Sciences 2022;200(2):3-7
Introduction:
PCR to detect and amplificate the virulence genes of STEC is specific and more sensitive, however, it takes five to six hours for whole test procedure and requires special lab instruments such as thermocycler. Loop-mediated isothermal amplification is a simple, rapid, specific and cost-effective nucleic acid amplification method by using four to six primers when compared to PCR, nucleic acid sequence-based amplification, self-sustained sequence replication and strand displacement amplification.
Materials and Methods:
In our study, we analyzed comparison of PCR and LAMP results on standard strain used quality control strain solution which diluted 1pg/µL DNA, 10 pg/µL DNA, 100 pg/µL DNA, 1 ng/μL DNA, 10 ng/μL DNA, and 100 ng/μL DNA concentration from LB agar cultures.
Research ethics:
Permission to submit the survey was granted by the Ethics Review Committee of the MNUMS and the survey was conducted in accordance with the rules and regulations.
Goal:
Detection and comparison of STEC by PCR and LAMP
Result:
Sensitivity of Stx1 and stx2 genes in PCR results are positive in 10 pg/µL DNA solution and
negative in 1pg/µL DNA. In LAMP test results showed that positive for all concentration. It
shows that LAMP method sensitivity is 10 times more than PCR.
Conclusion
It shows that LAMP method sensitivity is 10 times more than PCR. All in allLAMP test is cost
effective test with sensitive for detection STEC.
2.Relation between adherence factors and the phylogenetic group of extraintestinal pathogenic Escherichia coli
Munkhdelger Ya ; Nyamaa G ; Undarmaa G ; Oyunchimeg R ; Munguntuul T ; Altantsetseg D ; Munkh-Od Ts ; Sarantuya J
Innovation 2015;9(2):28-31
Extraintestinal pathogenic Escherichia coli (ExPEC), the specialized strains ofE.coli that cause most extraintestinal infections, represent a major but littleappreciated health threat. Phylogenetic analysis has shown that ExPEC is composedof four main phylogenetic groups (A,B1, B2, and D) and that virulent extraintestinalstrains mainly belong to groups B2 and D.In this study, we aimed to assess therelation between adherence virulence and phylogenetic groups of ExPEC.A total of 161 E.coli samples were collected. Out of these 17 (10.6%) werefrom pus, 66 (41 %) from urine, 78 (48.4%) from cervical swab. The phylogeneticgroups and 6 virulence genes (fimH, papC, papGII, papGIII, fa/draBC,andSfa/focDE) encoding adhesins were identified by triplex PCR. Phylogeneticgroups distribution was as follows: B1 10.5%, A 24.7%, B2 25.3%, and D 38.9%. Virulence genes prevalence was fimH 90.1%, papC 23%, papGII 16.8%, papGIII1.9%, Afa/draBC 11.8%, andSfa/focDE 5.6%. The cell surface protein (curli) wasdetected 50,3% by Congo red agar. In conclusion: The most isolated strainsbelonged to the phylogenetic group B2 and D. The phylogenetic groups weresignificantly associated with some genes encoding
adhesins (fimH, papC) and cellsurface protein (curli).
3.Healthy live guidance based on human characteristic types by traditional Mongolian medicine
Tuul Kh ; Munkhdelger D ; Sosorbaram L ; Lkhagvasuren Ts
Mongolian Pharmacy and Pharmacology 2018;13(2):14-17
Introduction:
Traditional Mongolian medicine contents a whole idea of preventive medicine.
Traditional Mongolian medicine main theory is “Rlung-Mkhris-Badgan” which is composed human
body. These elements confirm human healthy during metabolite balance but when any of these
lacks or exists in an excessive amount, then there is an illness. Understanding on the theory “Rlung-Mkhris-Badgan” by modern medicine there are called cell universal regulation system.[1] A striking
feature of metabolism is the similarity of the basic metabolic pathways and components of “Rlung-Mkhris-Badgan” even vastly different metabolic pathways. Human has own Rlung-Mkhris Badgan`s
portion differently when they were born, during all life must obey their attribute manner. There are
seven individualities which expressed human characters.
Furthermore in traditional Mongolian medicine have richness experience of concerning with
three elements unbalanced time to come disease early diagnosis and remedy them effectively. Accordingly organic body must adaption four seasons` biological accommodation and follow up four
seasons` suitable food technology and climate condition.
Purpose:
1. To determine human characteristic types by traditional Mongolian medicine main theory.
2. To suggest healthy live advice for people who participate randomized in preventive medical examination by used modern and traditional medical diagnostic methods.
Method:
Biomedicine and Clinical Pharmacy Department doctor teachers were organized “Healthy
life starts every day right habit” topic preventive medical examination for all students of Mongolian
University of Pharmaceutical Sciences 09-29 days of September, 2016. Participant by diagnosed
medical basic physical examination methods and filled out questionnaire in human characteristics
based traditional Mongolian medicine main theory.
Results:
There had 513 participants, 29 of them were “rlung” characteristic personality, 26 of
“mkhris” characteristic personality, 22 of them “badgan” characteristic personality, 163 of them “rlung
and mkhris” combined characteristics, 118 of them “rlung and badgan” combined characteristics”, 68
of them “Badgan and Mkhris” combined characteristics, 87 of them were composite characteristic
personalities.
Conclusion
1. Determined 85% of participants are respectively combined and composed types of characteristic personalities, and these participants supposed to be better metabolism balance. Determined 15% of
participants are one element dominantly personalities.
2. We made a Healthy Life Guidance depending on human characteristics.
4. Relation between adherence factors and the phylogenetic group of extraintestinal pathogenic Escherichia coli
Munkhdelger YA ; Nyamaa G ; Undarmaa G ; Oyunchimeg R ; Munguntuul T ; Altantsetseg D ; Munkh-Od TS ; Sarantuya J
Innovation 2015;9(2):28-31
Extraintestinal pathogenic Escherichia coli (ExPEC), the specialized strains ofE.coli that cause most extraintestinal infections, represent a major but littleappreciated health threat. Phylogenetic analysis has shown that ExPEC is composedof four main phylogenetic groups (A,B1, B2, and D) and that virulent extraintestinalstrains mainly belong to groups B2 and D.In this study, we aimed to assess therelation between adherence virulence and phylogenetic groups of ExPEC.A total of 161 E.coli samples were collected. Out of these 17 (10.6%) werefrom pus, 66 (41 %) from urine, 78 (48.4%) from cervical swab. The phylogeneticgroups and 6 virulence genes (fimH, papC, papGII, papGIII, fa/draBC,andSfa/focDE) encoding adhesins were identified by triplex PCR. Phylogeneticgroups distribution was as follows: B1 10.5%, A 24.7%, B2 25.3%, and D 38.9%. Virulence genes prevalence was fimH 90.1%, papC 23%, papGII 16.8%, papGIII1.9%, Afa/draBC 11.8%, andSfa/focDE 5.6%. The cell surface protein (curli) wasdetected 50,3% by Congo red agar. In conclusion: The most isolated strainsbelonged to the phylogenetic group B2 and D. The phylogenetic groups weresignificantly associated with some genes encodingadhesins (fimH, papC) and cellsurface protein (curli).
5.A comparison of PCR and LAMP methods for detecting shiga toxin producing escherichia coli
Nyamtuya N ; Sarantuya J ; Amgalanzaya D ; Munkhdelger Ya
Mongolian Medical Sciences 2022;201(3):3-6
Introduction:
PCR to detect and amplificate the virulence genes of STEC is specific and more sensitive, however, it takes five to six hours for whole test procedure and requires special lab instruments such as thermocycler. Loop-mediated isothermal amplification is a simple, rapid, specific and cost-effective nucleic acid amplification method by using four to six primers when compared to PCR, nucleic acid sequence-based amplification, self-sustained sequence replication and strand displacement amplification.
Goal:
Detection and comparison of STEC by PCR and LAMP
Materials and Methods:
In our study, we analyzed comparison of PCR and LAMP results on standard strain used quality control strain solution which diluted 1pg/µL DNA, 10 pg/µL DNA, 100 pg/µL DNA, 1 ng/μL DNA, 10 ng/μL DNA, and 100 ng/μL DNA concentration from LB agar cultures.
Research ethics:
Permission to submit the survey was granted by the Ethics Review Committee of the MNUMS and the survey was conducted in accordance with the rules and regulations.
Result:
Sensitivity of Stx1 and stx2 genes in PCR results are positive in 10 pg/µL DNA solution and negative in 1pg/µL DNA. In LAMP test results showed that positive for all concentration. It shows that LAMP method sensitivity is 10 times more than PCR.
Conclusion
It shows that LAMP method sensitivity is 10 times more than PCR. All in allLAMP test is cost effective test with sensitive for detection STEC.