Help
Subscribe


All of GastroHep is now free access! - Click here to register Read For FREE - Our full range of review articles
GastroHep.com - the global online resource for all aspects of gastroenterology, hepatology and endoscopy
GastroHep.com - the global online resource for all aspects of gastroenterology, hepatology and endoscopy Profile of Guido Tytgat Profile of Pete Peterson Profile of Peter Cotton 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

Non-invasive marker of small intestinal health in celiac disease

This month's issue of the American Journal of Gastroenterology investigates CYP3A4-catalyzed simvastatin metabolism as a non-invasive marker of small intestinal health in celiac disease.

News image

Histological examination of duodenal biopsies is the gold standard for assessing intestinal damage in celiac disease.

A noninvasive marker of disease status is necessary, because obtaining duodenal biopsies is invasive and not suitable for routine monitoring of celiac disease patients.

As the small intestine is a major site of cytochrome P450 3A4 activity, and also the location of the celiac lesion, Dr Belén Morón and colleagues investigated whether patients with active celiac disease display abnormal pharmacokinetics of an orally administered CYP3A4 substrate, simvastatin, which could potentially be used for noninvasive assessment of their small intestinal health.

Preclinical experiments were performed in CYP3A4-humanized mice to examine the feasibility of the test.

Subsequently, a clinical trial was undertaken with 11 healthy volunteers, 18 newly diagnosed patients with celiac disease, and 25 celiac patients who had followed a gluten-free diet for more than 1 year.

The team measured the maximum concentration of orally administered simvastatin plus its major non-CYP3A4-derived metabolite simvastatin acid, and compared with clinical, histological, and serological parameters.

The calculated pooled gastric cancer incidence-rate was about 0.3% per person-years
American Journal of Gastroenterology

In CYP3A4-humanized mice, the researchers observed a marked decrease in simvastatin metabolism was observed in response to enteropathy.

The doctors found that in the clinical setting, untreated celiac patients displayed a significantly higher SVeq Cmax compared with treated patients or healthy subjects.

SVeq Cmax correctly predicted the diagnosis in 16/18 untreated celiac patients, and also the recovery status of all follow-up patients that exhibited normal or near-normal biopsies.

All patients with abnormal SVeq Cmax showed a reduction in the value after 1 year of following a gluten-free diet.

The docters comments:

"Simvastatineq Cmax is a promising noninvasive marker for assessment of small intestinal health."

"Further studies are warranted to establish its clinical utility for assessing gut status of patients with celiac disease."

Am J of Gastroenterol 2013: 108: 1344-1351
23 August 2013

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

 19 September 2014

Advanced search
 19 September 2014 
Adhesions in abdominal and pelvic surgery
 19 September 2014 
Repeat colonoscopy among US Medicare
 19 September 2014 
Progression to liver cancer in HCV-infected Veterans
 18 September 2014 
Patient improvement following sacral neuromodulation
 18 September 2014 
Autoimmune diseases in functional gastrointestinal disorders
 18 September 2014 
New diagnostic score for hepatic steatosis
 17 September 2014 
Orange juice intake for bowel preparation
 17 September 2014 
Treatment of fistulising perianal Crohn's disease
 17 September 2014 
Interval colorectal cancers
 16 September 2014 
Fiber treats IBS
 16 September 2014 
Resected biliary tract cancer
 16 September 2014 
Postoperative adhesions in digestive surgery
 15 September 2014 
Fecal transplantation for C.diff infection
 15 September 2014 
Prunes and GI function
 15 September 2014 
Antidepressants for IBS
 12 September 2014 
Management of complex colon polyps
 12 September 2014 
Metabolic syndrome delays HBeAg seroclearance
 12 September 2014 
Drug-induced liver disease
 11 September 2014 
Hepatobiliary cirrhosis risk after organ transplant
 11 September 2014 
Sofosbuvir plus peginterferon/ribavirin for HCV
 11 September 2014 
Patient perceptions in celiac disease
 10 September 2014 
Adhesions in abdominal and pelvic surgery
 10 September 2014 
Acute kidney injury after colonoscopy
 10 September 2014 
Management algorithm for endoscopic mucosal resection of colonic lesions
 09 September 2014 
PPIs and spontaneous bacterial peritonitis in cirrhosis
 09 September 2014 
Neutrophil function and mortality in cirrhosis
 09 September 2014 
MELD and liver cancer survival
 08 September 2014 
Vagal nerve blockade and morbid obesity
 08 September 2014 
Comparison of diet programs in overweight and obese adults
 08 September 2014 
Long-term follow-up after bariatric surgery
 05 September 2014 
Healing rates in reflux esophagitis
 05 September 2014 
Progression of environmental enteropathy
 05 September 2014 
Diabetes and liver transplant outcomes
 04 September 2014 
Colectomy rates for refractory ulcerative colitis
 04 September 2014 
Infliximab prevents long-term Crohn’s disease recurrence
 04 September 2014 
Histological recovery with gluten-free diet in celiac disease
 03 September 2014 
Predictors of response in Crohn's disease
 03 September 2014 
Diagnosis of atrophic gastritis
 03 September 2014 
Safety of reinitiation of infliximab therapy
 02 September 2014 
SSRIs and depression in Hep C
 02 September 2014 
Bariatric surgery for obesity
 02 September 2014 
Eosinophilic esophagitis in adults
 01 September 2014 
Risks with anti-TNF in pediatric IBD
 01 September 2014 
Fecal hemoglobin and colorectal cancer screening
 01 September 2014 
Genetic variants in alcoholic liver disease
 29 August 2014 
Gluten-free diet for asymptomatic celiac disease
 29 August 2014 
NSAID-induced small intestinal injury and diaphragm disease
 29 August 2014 
Symptom evaluation in functional dyspepsia
 28 August 2014 
Predictoris of C. diff in out-patients
 28 August 2014 
Detection of gastroesophageal reflux symptoms
 28 August 2014 
Colorectal-cancer mortality after adenoma removal
 27 August 2014 
Endoscopy outcomes in community hospital vs tertiary academic centers
 27 August 2014 
UV exposure and IBD hospitalizations
 27 August 2014 
Hepatocellular carcinoma screening in liver disease
 26 August 2014 
NAFLD and gastroesophageal reflux symptoms
 26 August 2014 
Adalimumab-treated patients with ulcerative colitis
 26 August 2014 
Wound healing after abdominoperineal resection
 25 August 2014 
Surgical management of rectourethral fistulas
 25 August 2014 
Biomarker analysis in biopsies for ulcerative colitis
 25 August 2014 
Ileocolic resection in Crohn's disease

Blackwell Publishing


GastroHep.com is a Blackwell Publishing registered trademark
© 2014 Wiley-Blackwell and GastroHep.com and contributors
Privacy Statement
Disclaimer
About Us