Abstract:
:Previous studies have demonstrated alterations in brain response to rectal distension in patients with irritable bowel syndrome (IBS) compared to controls. Our aim was to compare regional brain activity in response to rectal balloon distension in patients with IBS and healthy controls. We studied six patients with IBS and six healthy controls. Positron emission tomography scans were obtained during rectal balloon distensions. Statistical parametric mapping and region of interest analysis were performed to identify and compare differences in regional cerebral blood flow (CBF) for each distension pressure within and between the groups of interest. In post-hoc analyses, patients with a history of sexual or physical abuse were compared to patients without abuse. In response to rectal distension, controls exhibit a greater increase in anterior cingulate cortex (ACC) activity compared to the IBS group (Z = 3.2, P = 0.001). Thalamic activity was higher in the IBS patients relative to the control group (Z = 3.3, P < 0.001). Increased ACC activity was observed in IBS patients with no history of abuse (Z = 5.2, P < 0.001) similar to controls, whereas no such increased activity was noticed in the abused group. In conclusion, this study replicates previous findings showing alterations in brain response to rectal distension in patients with IBS. The observations on the effect of abuse suggest a possible modulating role of abuse history on this brain response.
journal_name
Dig Dis Scijournal_title
Digestive diseases and sciencesauthors
Ringel Y,Drossman DA,Turkington TG,Bradshaw B,Hawk TC,Bangdiwala S,Coleman RE,Whitehead WEdoi
10.1023/a:1025455330704subject
Has Abstractpub_date
2003-09-01 00:00:00pages
1774-81issue
9eissn
0163-2116issn
1573-2568journal_volume
48pub_type
杂志文章abstract::Cholecystectomy is one of the commonest surgical procedures in the Western world, with more than half a million procedures performed annually in the United States alone. In recent years, studies of gallstone pathogenesis and gallbladder disease have increasingly focused on abnormal gallbladder motility in the pathogen...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章,评审
doi:10.1007/BF02063233
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journal_title:Digestive diseases and sciences
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journal_title:Digestive diseases and sciences
pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01537580
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journal_title:Digestive diseases and sciences
pub_type: 杂志文章,随机对照试验
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journal_title:Digestive diseases and sciences
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journal_title:Digestive diseases and sciences
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