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1.
Mem. Inst. Oswaldo Cruz ; 96(2): 247-50, Feb. 2001. tab
Article in English | LILACS | ID: lil-281575

ABSTRACT

We evaluated the mutations in a 193bp of the rpoB gene by automated sequencing of rifampicin (RMP)-resistant and susceptible Mycobacterium tuberculosis strains isolated from Brazil (25 strains) and France (37 strains). In RMP-resistant strains, mutations were identified in 100 percent (16/16) from France and 89 percent (16/18) from Brazil. No mutation was detected in the 28 RMP-susceptible strains. Among RMP-resistant or RMP-susceptible strains deletion was observed. A double point mutation which had not been reported before was detected in one strain from France. Among French resistant strains mutations were found in codons 531 (31.2 percent), 526, 513 and 533 (18.7 percent each). In Brazilian strains the most common mutations were in codons 531 (72.2 percent), 526 (11.1 percent) and 513 (5.5 percent). The heterogeneity found in French strains may be related to the fact that most of those strains were from African or Asian patients


Subject(s)
Humans , Antibiotics, Antitubercular/pharmacology , Genes, Bacterial/genetics , Mutation , Mycobacterium tuberculosis/genetics , Rifampin/pharmacology , Brazil , Drug Resistance, Microbial/genetics , France , Mycobacterium tuberculosis/drug effects
2.
Rev. colomb. cir ; 5(2): 104-109, ago. 1990. ilus, graf
Article in Spanish | LILACS | ID: lil-328762

ABSTRACT

La quimiohipertermia intraperitoneal (ITCH) con Mitomicina C (MMC) fue usada en el tratamiento de 7 pacientes con cancer gastrointestinal avanzado y carcinomatosis peritoneal. La reseccion primaria del tumor fue posible en 2 casos. La IPCH se realizo despues del cierre de la pared abdominal durante 90 y 120 minutos bajo anestesia general con previa hipotermia a 32º Celsius, a traves de un circuito cerrado formado con 3 drenajes de silicona intraperitoneal; se uso concentracion de 10 mg/L de MMC en 6000 mL de liquido precalentado a 46-49º Celsius. No observamos ni mortalidad ni morbilidad. Otros autores han informado efectos biologicos secundarios ligeros y temporales; no hubo celulas malignas en el liquido ascitico despues de la IPCH. Igualmente observamos en 6 pacientes un incremento en el indice de Karnofsky, 3 y 7 meses despues de la IPCH. Estos resultados nos permiten confirmar que la IPCH con MMC es un metodo sin riesgo, que puede ser usado en el tratamiento del cancer gastrointestinal avanzado con carcinomatosis peritoneal.


Subject(s)
Gastrointestinal Neoplasms , Hyperthermia, Induced
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