Lúcia Libanês Bessa Campelo Braga

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BACKGROUND This study conducted in Northeastern Brazil, evaluated the prevalence of H. pylori infection and the presence of gastritis in HIV-infected patients. METHODS There were included 113 HIV-positive and 141 age-matched HIV-negative patients, who underwent upper gastrointestinal endoscopy for dyspeptic symptoms. H. pylori status was evaluated by(More)
BACKGROUND Helicobacter pylori infection predisposes to gastric cancer. First-degree relatives of patients with gastric cancer have an increased risk of developing the disease. AIM To evaluate the prevalence of gastric precancerous gastric lesions and H. pylori infection in first-degree relatives of non-cardia gastric cancer patients. METHODS Gastric(More)
The accuracy of a nested PCR in gastric DNA obtained by a string test for the diagnosis of Helicobacter pylori infection in asymptomatic children was 94.0%. The cagA-positive toxigenic vacAs1m1 strains were the most prevalent strains, indicating that this population is colonized early by the strains associated with gastric cancer.
BACKGROUND Optimal anti-Helicobacter pylori treatment has not yet been established. AIM To evaluate H. pylori eradication using tetracycline and furazolidone versus amoxicillin and azithromycin in lansoprazole based triple therapy in northeastern of Brazil. PATIENTS AND METHODS One hundred and four patients with H. pylori infection, as determined by(More)
OBJECTIVES To investigate the prevalence of Helicobacter pylori infection in a randomly selected population of children from a low income community in Brazil and the risk factors for infection. DESIGN A cross-sectional, randomised study of prevalence and risk factors. SUBJECTS Children living in an urban community in north-east Brazil. METHODS H.(More)
AIM To determine the prevalence and risk factors associated with Helicobacter pylori infection among children up to 6 years. METHODS Cross-sectional study carried out in a poor urban community in Fortaleza Northeast Brazil. A standardized questionnaire was applied. Helicobacter pylori status was evaluated by (13)C-urea breath test ((13)C-UBT) in children(More)
BACKGROUND AND AIMS To further evaluate intrafamilial transmission of H. pylori infection during childhood, we investigated the prevalence of H. pylori in family members from a poor H. pylori high-prevalence urban community in the Northeast of Brazil. METHODS H. pylori infection was investigated in 570 members of 128 households, by (13) C-urea breath test(More)
We investigated the prevalence and the risk factors for infection with Helicobacter pylori in a randomly-selected population of adults from a low-income community in Northeastern Brazil. Helicobacter pylori infection was determined by ELISA. Risk factors were assessed using a structured interview. Two hundred and four individuals were included in the study,(More)
BACKGROUND An association between Helicobacter pylori infection and short stature in children has been described recently. AIM To describe differences in stature between H. pylori-infected and non-infected children in a low-income community in north-east Brazil. METHODS H. pylori status was evaluated by 13C-urea-breath test; centile values for weight(More)
The aim of this study was to evaluate the role of breastfeeding and the infection status of the mother in the acquisition of Helicobacter pylori infection in a poor urban community in northeastern Brazil. Helicobacter pylori status was evaluated by 13C-urea breath test in individuals under the age of 14 years and by ELISA in the mothers. The prevalence of(More)