[Prevalence of metronidazole, clarithromycin and tetracycline resistance in Helicobacter pylori isolated from Chilean patients]. / Prevalencia de la resistencia a metrodinazol, claritromicina y tetraciclina en Helicobacter pylori aislado de pacientes de la Región Metropolitana.
Rev Med Chil
; 135(3): 287-93, 2007 Mar.
Article
em Es
| MEDLINE
| ID: mdl-17505573
ABSTRACT
BACKGROUND:
Helicobacter pylori is a pathogenic bacterium that infects a significant number of individuals. At present, therapeutic strategies to eradicate this bacterium depend on our knowledge of its resistance to antimicrobials.AIMS:
To evaluate the primary resistance of H pylori to metronidazole (Mtz), clarithromycin (Cla), and tetracycline (Tet) in symptomatic out-patients. MATERIAL ANDMETHODS:
Fifty independent isolates of H pylori were obtained by endoscopy-assisted gastric biopsy from patients attending the University of Chile Clinical Hospital, that previously had not been treated with an eradication regime against this bacterium. The minimal inhibitory concentration of each antimicrobial was determined by agar dilution method.RESULTS:
Forty five and 27% of the isolates were found to be resistant to Mtz and Tet, respectively; the majority of these resistant isolates were from patients older than 21 years. Twenty percent of isolates were resistant to Cla; these were distributed evenly among different ages. Thirty two percent of the isolates were resistant to two or more of the antimicrobials.CONCLUSIONS:
The high frequency of naturally occurring, antimicrobial-resistant strains of H pylori poses a national and world-wide problem for public health.
Buscar no Google
Base de dados:
MEDLINE
Assunto principal:
Tetraciclina
/
Helicobacter pylori
/
Claritromicina
/
Farmacorresistência Bacteriana Múltipla
/
Metronidazol
/
Antibacterianos
Tipo de estudo:
Prevalence_studies
/
Risk_factors_studies
/
Screening_studies
Limite:
Adolescent
/
Adult
/
Aged
/
Aged80
/
Child
/
Female
/
Humans
/
Male
/
Middle aged
País como assunto:
America do sul
/
Chile
Idioma:
Es
Ano de publicação:
2007
Tipo de documento:
Article