Social Links

Follow on Facebook Follow on TwitterFollow EiR on PinterestFollow EiR on Instagram

Xpert Access


Login To Get Involved!

Forgot your username?

Forgot your password?


Join Us At EiR Now!

DNRS Roof Banner


DNRS 2.0 OUT NOW! Use 'DNRSEARLYBIRD' at Checkout for 15% off (Ends 29th!)

Universal AJAX Live Search

Search - Categories
Search - Contacts
Search - Content
Search - Newsfeeds
Search - Weblinks

Effect of two artichoke extracts on rat ileum with respect to bowel syndrome





Phytomedicine. 2008 Apr 16 [Epub ahead of print]


Effect of two artichoke extracts (36_U and 36_EB) on rat ileum (with respect to bowel syndrome) and the peristaltic threshold.


Verspohl EJ, Ploch M, Windeck T, Klaes M, Schmidt T, Bauer K. Department of Pharmacology, Institute of Medicinal Chemistry, University of Münster, Hittorfstr. 58-62, 48149 Münster, Germany.



The diagnosis and treatment of irritable bowel syndrome (IBS) are complicated. Artichoke extracts are well known to be helpful in various gastrointestinal disorders. A hydrophilic extract 36_U mainly containing luteolin-7-glycoside, luteolin-7-O-glucoside, small amounts of cynarin and luteolin increased contraction of rat ileum. This is mainly mediated by 5-HT(3) - and 5-HT(2) receptors but not 5-HT(4) receptors as can be derived by using specific antagonists such as tropisetrone, GR113806 and ketanserine. Additional mechanisms (receptors) are involved since the combination of these three antagonists was not able to fully prevent the contractive effect of extract 36_U. The lipophilic extract 36_EB mainly containing cynarin, luteolin including its glycosides, and cholorogenic acid in contrast to extract 36_U had a relaxing effect which could hardly be washed out. It was diminishing a serotonin effect and was not modified by ACh or substance P. The peristaltic threshold, i.e. the distension necessary for inducing a pathophysiologically relevant propulsion activity, is one of the important features being correlated with IBS. The peristaltic threshold was decreased by both serotonin and extract U_36. From the data it can be derived that the extract 36_U may be useful in IBS combined with obstipation when gastrointestinal contraction is necessary, whereas 36_EB may be useful in IBS combined with diarrhea when gastrointestinal relaxation is desired. Especially interesting are the influence on the threshold. It would be interesting to know which effects are mediated via cynarin and luteolin or its glycosides.









Please Help Support EiR with a Positive Google Review!

Review on Google


If you like EiR and / or enoyed this content; please help us keep going by leaving a Positive Google Review: 

P.S. This is entirely secure, we collect no data other than what is freely available from Google and you can remain anonymous!


Related Articles:


Mold Testing & Sanitizer:







  • No comments found

Leave your comments

Post comment as a guest

0 Character restriction
Your text should be more than 25 characters
Your comments are subjected to administrator's moderation.
terms and condition.

Adsense Responsive BottomBanner