Tereza Cristina de Oliveira Corvelo

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Resistance of Helicobacter pylori to clarithromycin is characterised by simple point mutations in the 23S ribosomal RNA (rRNA) gene and is responsible for the majority of cases of failure to(More)
BACKGROUND The Lewis (FUT3) gene is responsible for the expression of the Le(a) and Le(b) blood group antigens. The individuals, who not synthesize these antigens have the phenotype Lewis negative,(More)
CONTEXT Gastric neoplasia is the second most common cause of death by cancer in the world and H. pylori is classified as a type I human carcinogen by the World Health Organization. However, despite(More)
INTRODUCTION Although control measures of maternal and congenital syphilis are available in Brazil, difficulties exist within the healthcare network in providing a laboratory diagnosis of the(More)
The histo-blood group ABH antigens were first described in humans. These antigens are only present on erythrocytes from great apes and humans, while in more primitive animals they are found in(More)
We have examined the prevalence of gene cagA and vacA alleles in 129 patients, 69 with gastritis and 60 with peptic ulcer diseases from North Brazil and their relation with histopathological data.(More)