Journal
WORLD JOURNAL OF GASTROENTEROLOGY
Volume 19, Issue 39, Pages 6536-6539Publisher
BAISHIDENG PUBLISHING GROUP INC
DOI: 10.3748/wjg.v19.i39.6536
Keywords
Body mass index; Visceral obesity; Gastroesophageal reflux; Gastro-esophageal reflux disease complication
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The confluence between the increased prevalence of gastro-esophageal reflux disease (GERD) and of obesity has generated great interest in the association between these two conditions. Several studies have addressed the potential relationship between GERD and obesity, but the exact mechanism by which obesity causes reflux disease still remains to be clearly defined. A commonly suggested pathogenetic pathway is the increased abdominal pressure which relaxes the lower esophageal sphincter, thus exposing the esophageal mucosal to gastric content. Apart from the mechanical pressure, visceral fat is metabolically active and it has been strongly associated with serum levels of adipocytokines including interleukin-6 and tumor necrosis factor a, which may play a role in GERD or consequent carcinogenesis. This summary is aimed to explore the potential mechanisms responsible for the association between GERD and obesity, and to better understand the possible role of weight loss as a therapeutic approach for GERD.
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