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Anales Venezolanos de Nutrición
versión impresa ISSN 0798-0752
Resumen
PALOMINO CAMARGO, Carolina y TOME BOSCHIAN, Elisabetta. Role of water and foods in Helicobacter pylori transmission. An Venez Nutr [online]. 2012, vol.25, n.2, pp.85-93. ISSN 0798-0752.
Helicobacter pylori is a Gram-negative, microaerophilic, which efficiently colonizes the human gastric mucosa. It was first isolated in 1982 and is now considered an important human pathogen that causes various gastrointestinal diseases and is also recognized as a carcinogen. There is a high prevalence worldwide, with a higher percentage in developing countries, probably related to living conditions. Thus, the socio-economic status is the most important determinant for the development of the infection by H. pylori, being lower social classes exhibiting the highest prevalence. To date, the routes of transmission of this organism are not fully elucidated. Based on numerous epidemiological and microbiological evidences, several transmission paths have been suggested. Among them water and food are included as potential vectors, although the detection of these bacteria is complex in distinct samples to gastric tissue. H. pylori can happen to a viable but non-culturable state (VBNC) under conditions of stress. However, there have been several studies to assess the prevalence and survival of the bacteria in various water sources and food samples. Results indicate the possibility that they act as a reservoir for transmission. For this reason, this review article focuses on the evidence supporting the transmission of H. pylori through water and food.
Palabras clave : Helicobacter pylori; transmission; drinking water; foods; gastritis.