Prevalencia de la resistencia a metrodinazol, claritromicina y tetraciclina en Helicobacter pylori aislado de pacientes de la Región Metropolitana

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 metronidazol...

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Autores principales: Vallejos M,Cristian, Garrido O,Leonardo, Cáceres L,Dante, Madrid,Ana María, Defilippi,Claudia, Defilippi C,Carlos, Toledo A,Héctor
Lenguaje:Spanish / Castilian
Publicado: Sociedad Médica de Santiago 2007
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872007000300002
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spelling oai:scielo:S0034-988720070003000022014-01-06Prevalencia de la resistencia a metrodinazol, claritromicina y tetraciclina en Helicobacter pylori aislado de pacientes de la Región MetropolitanaVallejos M,CristianGarrido O,LeonardoCáceres L,DanteMadrid,Ana MaríaDefilippi,ClaudiaDefilippi C,CarlosToledo A,Héctor Clarithromycin Drug resistance, microbial Helicobacter pylori Metronidazole Tetracycline 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 and Methods: 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 healthinfo:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.135 n.3 20072007-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872007000300002es10.4067/S0034-98872007000300002
institution Scielo Chile
collection Scielo Chile
language Spanish / Castilian
topic Clarithromycin
Drug resistance, microbial
Helicobacter pylori
Metronidazole
Tetracycline
spellingShingle Clarithromycin
Drug resistance, microbial
Helicobacter pylori
Metronidazole
Tetracycline
Vallejos M,Cristian
Garrido O,Leonardo
Cáceres L,Dante
Madrid,Ana María
Defilippi,Claudia
Defilippi C,Carlos
Toledo A,Héctor
Prevalencia de la resistencia a metrodinazol, claritromicina y tetraciclina en Helicobacter pylori aislado de pacientes de la Región Metropolitana
description 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 and Methods: 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
author Vallejos M,Cristian
Garrido O,Leonardo
Cáceres L,Dante
Madrid,Ana María
Defilippi,Claudia
Defilippi C,Carlos
Toledo A,Héctor
author_facet Vallejos M,Cristian
Garrido O,Leonardo
Cáceres L,Dante
Madrid,Ana María
Defilippi,Claudia
Defilippi C,Carlos
Toledo A,Héctor
author_sort Vallejos M,Cristian
title Prevalencia de la resistencia a metrodinazol, claritromicina y tetraciclina en Helicobacter pylori aislado de pacientes de la Región Metropolitana
title_short Prevalencia de la resistencia a metrodinazol, claritromicina y tetraciclina en Helicobacter pylori aislado de pacientes de la Región Metropolitana
title_full Prevalencia de la resistencia a metrodinazol, claritromicina y tetraciclina en Helicobacter pylori aislado de pacientes de la Región Metropolitana
title_fullStr Prevalencia de la resistencia a metrodinazol, claritromicina y tetraciclina en Helicobacter pylori aislado de pacientes de la Región Metropolitana
title_full_unstemmed Prevalencia de la resistencia a metrodinazol, claritromicina y tetraciclina en Helicobacter pylori aislado de pacientes de la Región Metropolitana
title_sort prevalencia de la resistencia a metrodinazol, claritromicina y tetraciclina en helicobacter pylori aislado de pacientes de la región metropolitana
publisher Sociedad Médica de Santiago
publishDate 2007
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872007000300002
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