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Helicobacter pylori isolation, serology and cagA, cagE and virB11 detection in patients with non-ulcer dyspepsia from Turkey: Correlation with histopathologic findings

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Ilga U., Ozyurt M., Yildirim S., Ergunay K., Ardic N., Demirturk L., Haznedaroglu T.
Open Medicine
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2008
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vol. 3
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issue 1
41-46
EN
Colonization with Helicobacter pylori (HP) may have major clinical consequences and HP virulence factors are associated with more severe gastroduodenal pathologies. In this study, prevalence of HP in patients with Non-Ulcer Dyspepsia (NUD) was determined by rapid urease test and culture and correlations of histopathologic changes with bacterial virulence factors and serologic profiles were investigated. Gastric biopsies from sixty-nine patients admitted to Haydarpasa Training Hospital Department of Gastroenterology were evaluated for rapid urease, HP isolation and examined histopathologically. PCR was employed for HP confirmation and detection of HP cagA, cagE and virB11 genes. For each patient, IgG and IgA antibodies and anti-cagA antibodies were also determined by ELISA tests. HP was isolated and confirmed by PCR in 74% (51/69) of the patients. Anti-HP IgG and IgA were detected in 96% (49/51) and 53% (27/51), respectively. Anti-cagA were present in 51% (26/51). cagA, cagE and virB11 were positive in 56.8% (29/51), 60.7% (31/51) and 58.8% (30/51) of the patients, respectively. Statistically significant correlation was observed between cagA PCR and inflammation/activity scores. Detection of cagA by molecular assays can be an alternative test that can be employed for individual patient assessment.
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Genitourinary tuberculosis in a 54-year-old woman: diagnostic difficulty

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Agca H., Baylan O., Ozyurt M., Acar A., Demirpek U., Haznedaroglu T.
Open Medicine
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2010
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vol. 5
|
issue 5
569-572
EN
Genitourinary tuberculosis (GUTB) is an extrapulmonary manifestation of tuberculosis seen in 1.2% of all cases of tuberculosis. The clinical case of a 54-year-old woman diagnosed with GUTB is presented. Cloudy urine, abdominal pain, and microscopic hematuria led us to investigate for Mycobacterium tuberculosis. Although cultures were negative, positive Ehrlich-Ziehl-Neelsen (EZN) staining and a positive polymerase chain reaction (PCR) revealed the diagnosis of M. tuberculosis complex (MTC), which was confirmed by treatment success. It has been shown that PCR is a reliable and rapid method for establishing or supporting the diagnosis of tuberculosis and can be used in a routine diagnostic algorithm when conventional methods fail to identify MTC.
3
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Cross-resistance and associated resistance in Escherichia coli isolates from nosocomial urinary tract infections between 2004–2006 in a Turkish Hospital

100%
Ozyurt M., Oncul O., Ceylan S., Haznedaroglu T., Sahiner F., Ardic N.
Open Medicine
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2008
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vol. 3
|
issue 4
446-452
EN
In this study, antimicrobial resistance profiles were determined for 748 isolates of Escherichia coli from patients with acute nosocomial urinary tract infections (UTIs) at a Turkish Training Hospital. Thirteen antibiotics were included. Resistance to ampicillin alone (45.1%) and ciprofloxacin alone (20.6%) were the most commonly identified ‘single resistances’. Multiple resistance was found in 49.7% of the strains. The most common multiple antibiotic resistance profiles included ampicillin-sulbactam/amoxycilline-clavulonate (4.0%) and ampicillin-sulbactam/trimethoprim-sulfamethoxazole/amoxycilline-clavulonate (2.8%). From 2004 to 2006, ampicillin, trimethoprim-sulfamethoxazole and ciprofloxacin resistant strains increased to 76% from 57%, 53% from 43% and 55% from 41%, respectively. The percentage of extended-spectrum β-lactamase (ESBL) producing strains was 7.8% and imipenem resistance was seen in 5.2% of ESBL positive strains. We conclude that clinically important E.coli strains have now emerged with broader multidrug resistance. Periodical evaluation of laboratory results and clinical surveillance are crucially important for optimal antibiotic management of UTIs and infection control policies.
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