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      Detection of intracellular Helicobacter pylori in Candida. SPP from neonate oral swabs

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          Abstract

          SUMMARY BACKGROUND: There is evidence of detection of Helicobacter pylori (H. pylori) in the stool of newborns and in the yeast that colonizes the oral cavity of this age group. However, there is a lack of research to confirm it. This study proposes to determine the existence of the bacteria at an early age, specifically in newborns. OBJECTIVE: To identify intracellular H. pylori in oral yeasts and to detect antigens of the bacteria in newborn stools. METHODOLOGY: Cross-sectional and descriptive study. Samples were obtained from infants (oral swab and meconium). Identification of yeast species was performed using the following techniques: CHROMagar Candida, Germinal Tube Test and API Candida Identification System, then the yeasts were observed by light microscopy and fluorescence. Detection of H. pylori antigen in meconium and PCR were performed to amplify specific genes of the bacterium (rRNA16S, cagA, vacA s1a, vacA s1b, vacA s2, vacA m1, vacA m2 and dupA). RESULTS: Intracellular H. pylori was detected in yeast of the species Candida glabrata (C. glabrata) isolated from an oral swab of a newborn. CONCLUSION: The results of this study evidenced the existence of intracellular H. pylori in newborns.

          Translated abstract

          RESUMO ANTECEDENTES: Há evidências de detecçâo de Helicobacter pylori (H. pylori) em fezes de recém-nascidos, como também dentro de leveduras que colonizam a cavidade oral dessa faixa etária. No entanto, faltam investigações que confirmem esses achados. OBJETIVO: Identificar H. pylori intracelular em leveduras de origem oral e detectar antígenos dessa bactéria em fezes neonatais. METODOLOGIA: Estudo transversal e descritivo. As amostras foram obtidas de bebês (zaragatoa oral e mecônio). As identificações das espécies de leveduras foram realizadas utilizando as seguintes técnicas: CHROMagar Candida, teste de tubo germinativo e sistema de identificação API Cândida. As leveduras foram observadas por microscopía óptica e fluorescência. Realizou-se a detecçâo de antígeno de H. pylori em mecônio e PCR para a amplificação de genes específicos desta bactéria (rRNA16S, cagA, vacA s1a, vacA s1b, vacA s2, vacA m1, vacA m2 e dupA). RESULTADOS: Foi detectado H. pylori intracelular em leveduras da espécie Candida glabrata (C. glabrata) isoladas a partir de zaragatoas oral de um recém-nascido. CONCLUSÃO: Os resultados deste estudo evidenciaram a existência interna de levedura de H. pylori em recém-nascidos.

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          Most cited references29

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          Helicobacter pylori virulence and genetic geography.

          Isolated for the first time in 1982 from human gastric biopsy, Helicobacter pylori is responsible for gastritis, peptic ulcer, and gastric cancer. A pathogenicity island acquired by horizontal transfer, coding for a type IV secretion system, is a major determinant of virulence. The infection is now treated with antibiotics, and vaccines are in preparation. The geographic distribution suggests coevolution of man and Helicobacter pylori.
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            Helicobacter pylori in developing countries. World Gastroenterology Organisation Global Guideline.

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              Evidence-based guidelines from ESPGHAN and NASPGHAN for Helicobacter pylori infection in children.

              As the clinical implications of Helicobacter pylori infection in children and adolescents continue to evolve, ESPGHAN and NASPGHAN jointly renewed clinical guidelines using a standardized evidence-based approach to develop updated recommendations for children and adolescents in North America and Europe. An international panel of 11 pediatric gastroenterologists, 2 epidemiologists, 1 microbiologist, and 1 pathologist was selected by societies that developed evidence-based guidelines based on the Delphi process with anonymous voting in a final face-to-face meeting. A systematic literature search was performed on 8 databases of relevance including publications from January 2000 to December 2009. After excluding nonrelevant publications, tables of evidence were constructed for different focus areas according to the Oxford classification. Statements and recommendations were formulated in the following areas: whom to test, how to test, whom to treat, and how to treat. Grades of evidence were assigned to each recommendation based on the GRADE system. A total of 2290 publications were identified, from which 738 were finally reviewed. A total of 21 recommendations were generated, and an algorithm was proposed by the joint committee providing evidence-based guidelines on the diagnostic workup and treatment of children with H pylori infection. These clinical practice guidelines represent updated, best-available evidence and are meant for children and adolescents living in Europe and North America, but they may not apply to those living on other continents, particularly in developing countries with a high H pylori infection rate and limited health care resources.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                ramb
                Revista da Associação Médica Brasileira
                Rev. Assoc. Med. Bras.
                Associação Médica Brasileira (São Paulo, SP, Brazil )
                0104-4230
                1806-9282
                October 2018
                : 64
                : 10
                : 928-935
                Affiliations
                [1] Bío-Bío orgnameUniversidad de Concepción Chile
                Article
                S0104-42302018001000928
                10.1590/1806-9282.64.10.928
                30517241
                64ec2266-6468-4c41-bfd8-9b1b6e341725

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 29 January 2018
                : 16 February 2018
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 33, Pages: 8
                Product

                SciELO Brazil

                Categories
                Original Articles

                Helicobacter pylori,Recém-nascidos,Candida glabrata,Candida albicans,Boca,Infant, Newborn,Mouth

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