Phenotypic and genetic diversity of urease from clinical isolated strains of Helicobacter pylori

1998 ◽  
Vol 114 ◽  
pp. A306
Author(s):  
T. Tanahashi ◽  
M. Kita ◽  
K. Sakai ◽  
N. Sawai ◽  
Y. Yamaoka ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Helicobacter Pylori ◽  
Phenotypic And Genetic Diversity

Phenotypic and Genetic Diversity of Local Perilla (Perilla frutescens (L.) Britt.) from Northern Thailand

2017 ◽  
Vol 71 (2) ◽  
pp. 175-187 ◽  
Author(s):  
Tonapha Pusadee ◽  
Chanakan Prom-u-thai ◽  
Narit Yimyam ◽  
Sansanee Jamjod ◽  
Benjavan Rerkasem
Keyword(s):  
Genetic Diversity ◽  
Perilla Frutescens ◽  
Northern Thailand ◽  
Phenotypic And Genetic Diversity

Persistent colonization and genetic diversity of Helicobacter pylori among patients with severe neurological impairment

2006 ◽  
Vol 63 (3) ◽  
pp. 350-352 ◽  
Author(s):  
T. Yamazaki ◽  
M. Inoue ◽  
K. Yamada ◽  
I. Taneike ◽  
T. Yamamoto ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Helicobacter Pylori ◽  
Neurological Impairment ◽  
Severe Neurological Impairment

scholarly journals Antibiotic Resistance and Genotypes of Helicobacter pylori Strains in Patients with Gastroduodenal Disease in Southeast Poland

2019 ◽  
Vol 8 (7) ◽  
pp. 1071 ◽  
Author(s):  
Izabela Korona-Glowniak ◽  
Halina Cichoz-Lach ◽  
Radoslaw Siwiec ◽  
Sylwia Andrzejczuk ◽  
Andrzej Glowniak ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Helicobacter Pylori ◽  
Test Method ◽  
Rapid Urease Test ◽  
Microbial Culture ◽  
Virulence Markers ◽  
Gastroduodenal Disease ◽  
Urease Test ◽  
Gastric Biopsies ◽  
H Pylori

The aim of this study was to investigate genetic diversity of Helicobacter pylori virulence markers to predict clinical outcome as well as to determine an antibiotic susceptibility of H. pylori strains in Poland. Gastric biopsies from 132 patients with gastrointestinal disorders were tested for presence of H. pylori with the use of rapid urease test, microbial culture, and polymerase chain reaction (PCR) detection. The genetic diversity of 62 H. pylori positive samples was evaluated by detection of cagA and PCR-typing of vacA and iceA virulence-associated genes. Most common H. pylori genotypes were cagA(+)vacAs1m2 (27.4%) and cagA(−)vacAs2m2 (24.2%). In logistic regression analysis, we recognized the subsequent significant associations: gastritis with ureC, i.e., H. pylori infection (p = 0.006), BMI index (p = 0.032); and negatively with iceA1 (p = 0.049) and peptic ulcer with cagA (p = 0.018). Thirty-five H. pylori strains were cultured and tested by E-test method showing that 49% of strains were resistant to at least one of the tested antibiotics. This is the first study that reports the high incidence and diversity of allelic combination of virulence genes in gastroduodenitis patients in Poland. Genotyping of H. pylori strains confirmed the involvement of cagA gene and vacAs1m1 genotype in development and severity of gastric disorder.

scholarly journals Phenotypic and Genetic Diversity of Uropathogenic Enterococcus faecalis Strains Isolated in the Primorsky Region of Russia

2019 ◽  
Author(s):  
Zaitseva Elena Aleksandrovna ◽  
Komenkova Tatiana Sergeevna ◽  
Melnikova Elena Aleksandrovna ◽  
Shadrin Andrey Mikhailovich ◽  
Luchaninova Valentina Nikolaevna
Keyword(s):  
Genetic Diversity ◽  
Enterococcus Faecalis ◽  
Phenotypic And Genetic Diversity

scholarly journals A novel tRNA-associated locus (trl) from Helicobacter pylori is co-transcribed with tRNAGly and reveals genetic diversity

Microbiology ◽  
1999 ◽  
Vol 145 (6) ◽  
pp. 1289-1298 ◽  
Author(s):  
William G. Dundon ◽  
David G. Marshall ◽  
Colm A. Ó. Moráin ◽  
Cyril J. Smyth
Keyword(s):  
Genetic Diversity ◽  
Helicobacter Pylori
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