Help
Subscribe


GastroHep.com - the global online resource for all aspects of gastroenterology, hepatology and endoscopy

 24 May 2018

Advanced search
GastroHep.com - the global online resource for all aspects of gastroenterology, hepatology and endoscopy Profile of Roy Pounder

Home

News  
Journals
Review Articles
Slide Atlas
Video Clips
Online Books
Advanced Digestive Endoscopy
Classical Cases
Conference Diary
PubMed
International GH Links
USA GH Links
National GH Links
National GI Societies
Other Useful Links




Emails on Gastroenterology and Hepatology
the National AIDS Treatment Advocacy Project
Visit the gastroenterology section of the EUMS

News

Mucosal serotonin in ulcerative colitis and irritable bowel syndrome

Defects in serotonin signaling may underlie the altered motility, secretion, and sensation in ulcerative colitis and irritable bowel syndrome, find doctors in the July issue of Gastroenterology.

News image

fiogf49gjkf04

Serotonin is a critical signaling molecule in the gut; it is released from enterochromaffin cells initiates peristaltic, secretory, vasodilatory, vagal, and nociceptive reflexes.

In this study, doctors from North America assessed whether enteric serotonin signaling was defective in ulcerative colitis and irritable bowel syndrome (IBS).

The team obtained rectal biopsy specimens from healthy controls, as well as patients with ulcerative colitis, IBS with diarrhea (IBS-D), and IBS with constipation (IBS-C).
Mucosal serotonin was reduced in ulcerative colitis and IBS.
Gastroenterology

They measured elements of serotonin signaling, including measures of serotonin content, release, and reuptake.

The doctors found that mucosal serotonin, tryptophan hydroxylase 1 messenger RNA, serotonin transporter messenger RNA, and serotonin transporter immunoreactivity were all reduced in ulcerative colitis, IBS-C, and IBS-D.

They determined that the enterochromaffin cell population was decreased in severe ulcerative colitis samples.

Dr Matthew Coates and colleagues concluded, “These data show that ulcerative colitis and IBS are associated with similar molecular changes in serotonergic signaling mechanisms”.

“While ulcerative colitis and IBS have distinct pathophysiologic properties, these data suggest that shared defects in serotonin signaling may underlie the altered motility, secretion, and sensation”.

“These findings represent the first demonstration of significant molecular alterations specific to the gut in patients with IBS and support the assertion that disordered gastrointestinal function in IBS involves changes intrinsic to the bowel”.

Gastroenterology 2004; 126(7):1657-64
22 June 2004

Go to top of page Email this page Email this page to a colleague

 24 May 2018 
Precision medicine for tumors
 24 May 2018 
Patient-reported outcome measures in IBD trials
 24 May 2018 
Alcohol consumption and outcomes in drug-induced liver injury
 23 May 2018 
High body mass index is and ulcerative colitis
 23 May 2018 
Management of perianal fistulas in Crohn’s disease
 23 May 2018 
Cardiovascular risk in diabetes mellitus with NAFLD
 22 May 2018 
Worldwide H.pylori prevalence
 22 May 2018 
PPI and risk of stroke
 22 May 2018 
Online tool predicts bowel dysfunction severity prior to anterior resection
 21 May 2018 
Fecal incontinence and quality of life in IBD
 21 May 2018 
PPI use and cognitive decline
 21 May 2018 
Depressive symptoms in IBD youth
 18 May 2018 
Esophageal dilatation in clinical practice 
 17 May 2018 
IBD and later extraintestinal manifestations
 17 May 2018 
Repeat stool DNA testing
 17 May 2018 
IBS and chronic fatigue following GI infection
 16 May 2018 
Factors associated with fecal incontinence
 16 May 2018 
Diagnostic delay in Crohn's disease
 16 May 2018 
Cardiovascular risk in diabetes mellitus with NAFLD
 15 May 2018 
Guidelines for management of Crohn's
 15 May 2018 
New therapies for CDI
 15 May 2018 
Hep B in the Grey Zone
 14 May 2018 
Blood test for the diagnosis of fibrotic NASH
 14 May 2018 
Outcomes at bariatric centers of excellence
 14 May 2018 
Management of perianal fistulas in Crohn’s
 11 May 2018 
Detection of undiagnosed celiac disease
 11 May 2018 
Alcohol consumption and drug-induced liver injury
 10 May 2018 
Colorectal cancer screening
 10 May 2018 
Post‐operative complications in elderly IBD
 10 May 2018 
Fibrosis in patients with chronic hepatitis B
 09 May 2018 
Esophageal dilatation in clinical practice 
 09 May 2018 
Fecal incontinence
 09 May 2018 
Health problems and IBS
 07 May 2018 
Omitting antibiotics in uncomplicated acute diverticulitis
 07 May 2018 
Health problems and IBS
 07 May 2018 
Assessment of diminutive colorectal polyps
 04 May 2018 
Factors associated with fecal incontinence
 04 May 2018 
National Institutes of Health workshop and obesity
 04 May 2018 
Colorectal cancer screening and ethnic inequities
 03 May 2018 
Gastrointestinal ultrasound in IBD
 03 May 2018 
Ultransonography in postsurgical recurrence in Crohn's
 02 May 2018 
Hep C antiviral treatment and liver cancer risk
 02 May 2018 
Symptom assessment in cirrhotic ascites
 02 May 2018 
Chronic Hep B
 01 May 2018 
European guidelines on pancreatic cystic neoplasms
 01 May 2018 
Interferon‐free regimens in Hep C
 01 May 2018 
Age at IBD onset and extraintestinal complications
 30 April 2018 
Formula for preterm infants
 30 April 2018 
Primary antibiotic resistance and sequential therapy for H. pylori
 27 April 2018 
Eastern and western practices for endoscopic resection of colorectal lesions
 27 April 2018 
Anxiety scale for chronic esophageal disease
 27 April 2018 
Disease activity in eosinophilic esophagitis
 26 April 2018 
Obesity and physical activity in diverticulosis
 26 April 2018 
Primary sclerosing cholangitis in the USA
 25 April 2018 
Aspirin and pancreatic cancer
 25 April 2018 
Central mediators of irinotecan-induced steatohepatitis
 25 April 2018 
Neuroimaging in Hep C
 24 April 2018 
Scoring system identifies cancer risk in Barrett's
 24 April 2018 
Microbiome in athletes vs sedentary subjects
 23 April 2018 
Genome-wide study on HBV-related acute-on-chronic liver failure

Blackwell Publishing


GastroHep.com is a Blackwell Publishing registered trademark
© 2018 Wiley-Blackwell and GastroHep.com and contributors
Privacy Statement
Disclaimer
About Us