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Abdominal distension after eating lettuce: the role of intestinal gas evaluated in vitro and by abdominal CT imaging

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Barba_et_al-2019-Neurogastroenterology_&_Motility.pdf (788,5Kb)
 
10.1111/nmo.13703
 
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Barba, Elisabeth
Sánchez García, Borja
Burri, Emanuel
Accarino Garaventa, Anna María
Monclús Lahoya, EvaMés informacióMés informacióMés informació
Navazo Álvaro, IsabelMés informacióMés informacióMés informació
Guarner Aguilar, Francisco
Margolles Barros, Abelardo
Azpiroz Vidaur, Fernando
Document typeArticle
Defense date2019-08-11
PublisherJohn Wiley and Sons Ltd.
Rights accessOpen Access
Attribution 3.0 Spain
This work is protected by the corresponding intellectual and industrial property rights. Except where otherwise noted, its contents are licensed under a Creative Commons license : Attribution 3.0 Spain
Abstract
Background: Some patients complain that eating lettuce, gives them gas and abdominal distention. Our aim was to determine to what extent the patients' assertion is sustained by evidence. Methods: An in vitro study measured the amount of gas produced during the process of fermentation by a preparation of human colonic microbiota (n = 3) of predigested lettuce, as compared to beans, a high gas-releasing substrate, to meat, a low gas-releasing substrate, and to a nutrient-free negative control. A clinical study in patients complaining of abdominal distention after eating lettuce (n = 12) measured the amount of intestinal gas and the morphometric configuration of the abdominal cavity in abdominal CT scans during an episode of lettuce-induced distension as compared to basal conditions. Key Results: Gas production by microbiota fermentation of lettuce in vitro was similar to that of meat (P = .44), lower than that of beans (by 78 ± 15%; P < .001) and higher than with the nutrient-free control (by 25 ± 19%; P = .05). Patients complaining of abdominal distension after eating lettuce exhibited an increase in girth (35 ± 3 mm larger than basal; P < .001) without significant increase in colonic gas content (39 ± 4 mL increase; P = .071); abdominal distension was related to a descent of the diaphragm (by 7 ± 3 mm; P = .027) with redistribution of normal abdominal contents. Conclusion and Inferences: Lettuce is a low gas-releasing substrate for microbiota fermentation and lettuce-induced abdominal distension is produced by an uncoordinated activity of the abdominal walls. Correction of the somatic response might be more effective than the current dietary restriction strategy.
CitationBarba, E. [et al.]. Abdominal distension after eating lettuce: the role of intestinal gas evaluated in vitro and by abdominal CT imaging. "Neurogastroenterology & Motility", 11 Agost 2019, p. 1-7. 
URIhttp://hdl.handle.net/2117/170096
DOI10.1111/nmo.13703
ISSN1365-2982
Publisher versionhttps://onlinelibrary.wiley.com/doi/full/10.1111/nmo.13703
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  • Departament de Ciències de la Computació - Articles de revista [1.125]
  • ViRVIG - Grup de Recerca en Visualització, Realitat Virtual i Interacció Gràfica - Articles de revista [113]
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