TY - JOUR T1 - Fecal microbiota analysis of children with small intestinal bacterial overgrowth among residents of an urban slum in Brazil JO - Jornal de Pediatria (English Edition) T2 - AU - Mello,Carolina Santos AU - Rodrigues,Mirian Silva do Carmo AU - Filho,Humberto Bezerra de Araújo AU - Melli,Lígia Cristina Fonseca Lahoz AU - Tahan,Soraia AU - Pignatari,Antônio Carlos Campos AU - de Morais,Mauro Batista SN - 00217557 M3 - 10.1016/j.jped.2017.09.003 DO - 10.1016/j.jped.2017.09.003 UR - https://jped.elsevier.es/en-fecal-microbiota-analysis-children-with-articulo-S0021755716303862 AB - ObjectiveTo analyze the fecal microbiota composition of children living in an urban slum in Brazil, with or without small intestinal bacterial overgrowth, and to investigate the occurrence of stunting and anemia. MethodsA total of 100 children were studied, aged 5–11 years, from the municipality of Osasco, São Paulo. Small intestinal bacterial overgrowth was screened through hydrogen and methane breath test with lactulose. Weight and height were measured, and the height-for-age and body mass-for-age anthropometric indexes were calculated. The occurrence of anemia was investigated by capillary hemoglobin. Analysis of bacterial phylum, genus, and species was performed by real-time polymerase chain reaction in fecal samples. ResultsSmall intestinal bacterial overgrowth was identified in 61.0% of the children. A lower mean of height-for-age Z-score ([−0.48±0.90] vs. [−0.11±0.97]; p=0.027), as well as capillary hemoglobin ([12.61±1.03g/dL] vs. [13.44±1.19g/dL]; p<0.001) was demonstrated in children with SIBO when compared with children without small intestinal bacterial overgrowth. Children with small intestinal bacterial overgrowth presented a higher frequency of Salmonella spp., when compared to those without small intestinal bacterial overgrowth (37.7% vs. 10.3%; p=0.002). Higher counts of total Eubacteria (p=0.014) and Firmicutes (p=0.038) were observed in children without small intestinal bacterial overgrowth; however, a higher count of Salmonella (p=0.002) was found in children with small intestinal bacterial overgrowth. ConclusionChildren who lived in a slum and were diagnosed with small intestinal bacterial overgrowth showed lower H/A Z-scores and hemoglobin levels. Furthermore, differences were observed in the fecal microbiota of children with small intestinal bacterial overgrowth, when compared to those without it; specifically, a higher frequency and count of Salmonella, and lower counts of Firmicutes and total Eubacteria. ER -