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  • Title: Effects of Cirsium palustre Extracts and Their Main Flavonoids on Colon Motility-An Ex Vivo Study.
    Author: Szadkowska D, Chłopecka M, Strawa JW, Jakimiuk K, Augustynowicz D, Tomczyk M, Mendel M.
    Journal: Int J Mol Sci; 2023 Dec 09; 24(24):. PubMed ID: 38139112.
    Abstract:
    For centuries, various species from the genus Cirsium have been utilized in traditional medicine worldwide. A number of ethnopharmacological reports have pointed out that Cirsium plants can be applied to diminish digestive problems. Among them, Cirsium palustre (L.) Scop. (Asteraceae) stands out as a promising herbal drug candidate because its constituents exhibit antimicrobial and antioxidant potential, as evidenced by ethnopharmacological reports. As a result, the species is particularly intriguing as an adjunctive therapy for functional gastrointestinal and motility disorders. Our research goal was to verify how the extracts, fractions, and main flavonoids of C. palustre affect colon contractility under ex vivo conditions. An alternative model with porcine-isolated colon specimens was used to identify the effects of C. palustre preparations and their primary flavonoids. LC-ESI-MS was utilized to evaluate the impacts of methanol (CP1), methanolic 50% (CP2), and aqueous (CP3) extracts as well as diethyl ether (CP4), ethyl acetate (CP5), and n-butanol (CP6) fractions. Additionally, the impacts of four flavonoids, apigenin (API), luteolin (LUT), apigenin 7-O-glucuronide (A7GLC), and chrysoeriol (CHRY), on spontaneous and acetylcholine-induced motility were assessed under isometric conditions. The results showed that C. palustre extracts, fractions, and their flavonoids exhibit potent motility-regulating effects on colonic smooth muscle. The motility-regulating effect was observed on spontaneous and acetylcholine-induced contractility. All extracts and fractions exhibited an enhancement of the spontaneous contractility of colonic smooth muscle. For acetylcholine-induced activity, CP1, CP2, and CP4 caused a spasmolytic effect, and CP5 and CP6 had a spasmodic effect. LUT and CHRY showed a spasmolytic effect in the case of spontaneous and acetylcholine-induced activity. In contrast, API and A7GLC showed a contractile effect in the case of spontaneous and pharmacologically induced activity. Considering the results obtained from the study, C. palustre could potentially provide benefits in the treatment of functional gastrointestinal disorders characterized by hypomotility and hypermotility.
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