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1.
Gac. méd. boliv ; 46(1)2023.
Artigo em Espanhol | LILACS-Express | LILACS | ID: biblio-1448302

RESUMO

Objetivos: determinar la frecuencia del gen mecA en Staphylococcus aureus resistente a meticilina (MRSA) aislados de pacientes atendidos en un hospital de tercer nivel en la región Cajamarca, Perú; asimismo, determinar cuál de los dos antibióticos usados como screening fenotípico tiene mayor utilidad para explicar la presencia de dicho gen. Métodos: se analizaron 71 aislamientos bacterianos provenientes de muestras del Hospital Regional Docente de Cajamarca, la identificación de S. aureus se llevó a cabo mediante el equipo MicroScan. El screening fenotípico para resistencia a meticilina se realizó mediante la técnica de difusión, con discos de cefoxitina y oxacilina. La extracción de ADN se realizó mediante shock térmico, la detección del gen mecA se realizó mediante reacción en cadena de la polimerasa. El análisis estadístico se realizó con el software SPSS v.25. Resultados: de los 71 aislados, 40 (56,3%) fueron MRSA portadores del gen mecA, la mayoría de estos aislamientos correspondieron a pacientes hospitalizados 22 (31,0%), siendo más frecuentes en muestras de secreción bronquial 27 (38,0%). El screening fenotípico con disco de cefoxitina predijo mejor la presencia del gen mecA [P=0,010; Exp(B)= 12,3] en comparación con el disco de oxacilina. Conclusiones: este estudio demostró alta frecuencia de MRSA mecA positivo en muestras de origen clínico, principalmente de pacientes hospitalizados. Es importante establecer medidas de vigilancia para identificar MRSA en todos los hospitales de la región.


Objective: to determine the frequency of the mecA gene in methicillin-resistant Staphylococcus aureus (MRSA) isolated from patients treated at a third-level hospital in the Cajamarca region, Peru; as well as, to determine which of the two antibiotics used as phenotypic screening is more useful in explaining the presence of said gene. Methods: 71 bacterial isolates were analyzed from samples obtained from the Hospital Regional Docente of Cajamarca. The identification of S. aureus was carried out using the MicroScan system. Phenotypic screening for resistance to methicillin was performed using the diffusion technique with cefoxitin and oxacillin discs. DNA extraction was performed by heat shock, mecA gene detection was performed through polymerase chain reaction. For data analysis, the statistical software SPSS v.25 was used. Results: from 71 isolates, 40 (56,3%) were MRSA carriers of the mecA gene, the majority of these isolates corresponded to hospitalized patients 22 (31,0%), being more frequent in bronchial secretion samples 27 (38,0%). Phenotypic screening with cefoxitin disc was a better predictor for the presence of the mecA gene [P=0,010; Exp(B)= 12,3] compared to the oxacillin disc. Conclusions: It is shown a high frequency of positive MRSA mecA in samples of clinical origin, mainly from hospitalized patients. It is important to establish surveillance guidelines to identify MRSA in all hospitals in the region.

2.
JCPSP-Journal of the College of Physicians and Surgeons Pakistan. 2010; 20 (8): 551-553
em Inglês | IMEMR | ID: emr-111024

RESUMO

Drug-induced liver injury is a common side-effect of many medicines. It is particularly problem when the original condition under treatment is already causing liver damage. This report describes the hepatotoxicity induced by Deferasirox in a patient with haemochromatosis with a discussion of possible pathogenetic mechanisum


Assuntos
Humanos , Feminino , Doença Hepática Induzida por Substâncias e Drogas/etiologia , Hemocromatose/tratamento farmacológico , Triazóis/efeitos adversos , Quelantes de Ferro/efeitos adversos , Terapia por Quelação , Resultado do Tratamento
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