Abstract:
:Galantamine is efficacious for vascular dementia and Alzheimer's disease. Its application leads to some negative gastrointestinal side effects. The present study observes galantamine-induced influence on gastrointestinal motility of rats and its effects on isolated gastrointestinal smooth muscles. The gastrointestinal tract was studied by X-ray contrast examination. Functional disturbances were observed: hypertonia, increased stomach and ileal peristalsis activity, accelerated intestinal passage. In vitro, the drug caused tonic contractions in smooth muscle preparations and increased the gastric and ileal phasic amplitude. The jejunal smooth muscle strips demonstrated an opposite tendency. The reactions were a result of the interaction of galantamine-accumulated endogenic acetycholine with M- and N-acetylcholine receptors. The tonic effects were influenced in varying degree by atropine and ipratropium, whereas the phasic by atropine, ipratropium, hexametonium and methysergide. In conclusion, the in vitro effects registered satisfactorily explain in vivo examined galantamine-induced changes in the gastrointestinal tract of the treated rats and can be considered as main cause for development of such changes.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Turiiski VI,Krustev AD,Sirakov VN,Getova DPdoi
10.1016/j.ejphar.2004.07.054keywords:
subject
Has Abstractpub_date
2004-09-13 00:00:00pages
233-9issue
1-3eissn
0014-2999issn
1879-0712pii
S0014-2999(04)00786-1journal_volume
498pub_type
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