[Adolescent females' knowledge about pregnancy prevention methods and sexually transmitted diseases].

Objective: To evaluate knowledge about sexuality, contraceptive methods and sexually transmitted diseases (STD) by female adolescents from both rural and urban zone attending public school.

Methods: A cross sectional study was made with 506 teenagers, 10 to 16 years old, attending Dr. Roberto Feijó Public School in Guararema, São Paulo.

A randomized double-blind clinical trial of the effect of non-absorbable oral polymyxin on infants with severe infectious diarrhea.

The present study evaluated the effect of non-absorbable oral polymyxin on the duodenal microflora and clinical outcome of infants with severe infectious diarrhea. Polymyxin was chosen because classic enteropathogenic Escherichia coli was more sensitive to this antibiotic. Twenty-five infants were randomly assigned to a 7-day treatment with oral polymyxin (2.

[Dermatoglyphic patterns in celiac disease].

In 1990 a project was performed in Israel in which the authors reported a higher frequency of whorls and a lower frequency of ulnar loops in the dermatoglyphic pattern of children with celiac disease than in children belonging to control group. Based on these findings we carried out a similar study with our local population. Thirty six celiac children, their parents and siblings had their fingerprints analysed and compared to a control group matching for age, sex and race, in order to assess the efficiency of this method for the diagnosis of celiac disease.

[Steatocrit and Sudan III in the study of steatorrhea in children: comparison with the Van de Kamer method].

Steatorrhea was investigated in 50 children, through Van de Kamer test, Sudan III and steatocrit, in order to compare these three methods. Steatocrit showed better correlation with Van de Kamer test, obtaining sensibility and specificity of 91% and 87%, respectible, on stools took before homogenizing the feces collected during 72 hours. In this same situation, Sudan III showed sensibility of 73% and specificity of 69%.

[Serum antigliadin antibodies in the diagnosis and follow-up of celiac disease].

Between July 1985 and June 1990, we prospectively investigated 236 children suspected of having malabsorption syndrome. Each patient had a xylose absorption test and small intestinal biopsy. Blood samples were collected to AGA assay.