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https://hdl.handle.net/2440/8564
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Type: | Journal article |
Title: | Involvement of cholecystokinin A receptors in transient lower esophageal sphincter relaxations triggered by gastric distension |
Author: | Boeckxstaens, G. Hirsch, D. Fakhry, N. Holloway, R. D'Amato, M. Tytgat, G. |
Citation: | American Journal of Gastroenterology, 1998; 93(10):1823- |
Publisher: | ELSEVIER SCIENCE INC |
Issue Date: | 1998 |
ISSN: | 0002-9270 1572-0241 |
Statement of Responsibility: | G. E. Boeckxstaens, D. P. Hirsch, N. Fakhry, R. H. Holloway, M. D’Amato, and G. N. J. Tytgat, |
Abstract: | <h4>Objective</h4>Transient lower esophageal sphincter relaxations (TLESRs) are the main mechanism underlying gastroesophageal reflux. In the present study we evaluated the effect of loxiglumide, a specific cholecystokininA (CCKA)-receptor antagonist, on the occurrence of TLESRs evoked by gastric distension.<h4>Methods</h4>Eight healthy subjects underwent esophageal manometry using a 10-lumen sleeve assembly during placebo or loxiglumide (10 mg/kg/h) in a randomized double-blind order. Gastric distension was induced by inflation of 400 ml of air.<h4>Results</h4>Basal lower esophageal pressure (LESP) and swallow-induced relaxation were not affected by loxiglumide. Loxiglumide significantly reduced the number of TLESRs, from 11.5 (5.8-18.3) to 6.0 (3.3-14.3) during the total recording period of 1 h, and from 5.5 (4.25-7.5) to 2.0 (0.5-6.8) during the first 15 min. The number of common cavities was significantly decreased by loxiglumide, from 8.0 (4.0-20.0) to 5.0 (2.0-7.8). TLESRs represented the main mechanism (60% during placebo, 74% during loxiglumide) underlying common cavities, followed by swallow-induced relaxation.<h4>Conclusions</h4>Loxiglumide significantly reduces the number of TLESRs triggered by gastric distension without interfering with swallow-related relaxation of the lower esophageal sphincter, suggesting the involvement of CCKA receptors in the reflex pathway mediating TLESRs. |
Keywords: | Esophagogastric Junction Stomach Humans Gastroesophageal Reflux Hormone Antagonists Proglumide Receptors, Cholecystokinin Receptor, Cholecystokinin A Reflex Double-Blind Method Manometry Deglutition Peristalsis Adult Female Male |
DOI: | 10.1016/S0002-9270(98)00408-0 |
Published version: | http://dx.doi.org/10.1016/s0002-9270(98)00408-0 |
Appears in Collections: | Aurora harvest Medicine publications |
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