1995
DOI: 10.1159/000201299
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Do Salivary Organic Components Play a Protective Role in Health and Disease of the Esophageal Mucosa?

Abstract: Aggressive factors operating within the esophageal lumen during gastroesophageal reflux are balanced by adequately mobilized protective mechanisms. Esophageal mucosal protection operates at three different although complementary dimensions: (1) preepithelial, (2) epithelial and (3) postepithelial. Since aggressive factors predominantly operate within the esophageal lumen, preepithelial defense is pivotal in mucosal protection. The preepithelial barrier is significantly enhanced by the quantity and the quality … Show more

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Cited by 38 publications
(53 citation statements)
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“…It is interesting to notice how a large number of laryngopharyngeal reflux patients, even those with the most dramatic larynx findings, do not have esophagitis or other signs of GERD in their digestive tract 8,25,29 . Of course, the gastric and esophageal mucosas protection mechanisms play a decisive role in the capacity these organs have to withstand daily mechanical and chemical aggressions, and many of these mechanisms are saliva mediated [31][32][45][46][47][48] . Saliva has many organic and inorganic substances that contribute to the protection against physical and chemical aggression and also to maintain mucosal integrity, not only of the oral cavity, but also of the digestive tract 43,45,46,[48][49][50][51][52] .…”
Section: Introductionmentioning
confidence: 99%
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“…It is interesting to notice how a large number of laryngopharyngeal reflux patients, even those with the most dramatic larynx findings, do not have esophagitis or other signs of GERD in their digestive tract 8,25,29 . Of course, the gastric and esophageal mucosas protection mechanisms play a decisive role in the capacity these organs have to withstand daily mechanical and chemical aggressions, and many of these mechanisms are saliva mediated [31][32][45][46][47][48] . Saliva has many organic and inorganic substances that contribute to the protection against physical and chemical aggression and also to maintain mucosal integrity, not only of the oral cavity, but also of the digestive tract 43,45,46,[48][49][50][51][52] .…”
Section: Introductionmentioning
confidence: 99%
“…Thus, there is a greater availability of organic and inorganic salivary substances in the esophagus, besides the salivary volume itself that, together contribute to dilute and neutralize the refluxed contents 43,45,46,48 .…”
Section: Introductionmentioning
confidence: 99%
“…É interessante notar como um grande número de pacientes com refluxo laringofaríngeo não tem esofagite ou outros sinais da DRGE no tubo digestivo 4 . Certamente, os mecanismos de proteção das mucosas gástrica e esofágica exercem um papel decisivo na capacidade destes órgãos de suportar as agressões mecânicas e químicas a que são submetidos diariamente, sendo vários destes mecanismos mediados pela saliva 11,12,20 . A saliva contém diversas substâncias orgânicas e inorgânicas que contribuem para a proteção contra as agressões físicas e químicas e para a manutenção da integridade da mucosa, não só da cavidade oral como também do tubo digestivo 7,11,12,20 .…”
Section: Discussionunclassified
“…Entre os fatores orgânicos biologicamente ativos produzidos pelas glândulas salivares, o Fator de Crescimento Epidérmico (EGF), devido ao seu poder de estimular a síntese celular de DNA, mostrou ser aquele que mais diretamente está associado à rápida regeneração dos epitélios oral e digestivo, após as agressões [10][11][12]15,21 . Estudos quantitativos e qualitativos da ação biológica dos polipeptídeos salivares como as prostaglandinas (PGE), o fator de transformação do crescimento (TGF) com suas subfrações alfa e beta e o fator de crescimento epidérmico (EGF) mostraram que apesar de todos atuarem direta ou indiretamente na proteção do epitélio digestivo, o mais ativo destes polipeptídeos, tanto pela sua concentração salivar quanto pela sua ação biológica, é o EGF 11 .…”
Section: Discussionunclassified
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