| Beide Seiten der vorigen RevisionVorhergehende ÜberarbeitungNächste Überarbeitung | Vorhergehende Überarbeitung |
| rheum_rhaponticum_l [2015/02/13 10:41] – andreas | rheum_rhaponticum_l [2016/11/26 16:54] (aktuell) – andreas |
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| Rheum rhaponticum L. - Polygonaceae - rhapontic rhubarb, false rhubarb , **Rhapontik-Rhabarber**, Sibirischer Rhabarber. Bulgarischer Rhabarber | Rheum rhaponticum L. - Polygonaceae - rhapontic rhubarb, false rhubarb , **Rhapontik-Rhabarber**, Sibirischer Rhabarber, Bulgarischer Rhabarber |
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| Perennial herb, up to 1.5m high, native to Siberia, Norway, Bulgaria (probably naturalized from cultivation).\\ | Perennial herb, up to 1.5m high, native to Siberia, Norway, Bulgaria (probably naturalized from cultivation).\\ |
| [[http://de.wikipedia.org/wiki/Rhapontik-Rhabarber]] | [[http://de.wikipedia.org/wiki/Rhapontik-Rhabarber]] |
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| | Analysis (HPLC) of a commercial sample of dried roots (Rhei rhapontici radix, Rhapontikwurzel) gave the stilbenoids rhaponticin (4.66%), desoxyrhaponticin (2.72%), dioxyrhaponticin (2.43%), rhapontigenin (0.67%) and desoxyrhapontigenin (0.22%). \\ |
| | [Über pflanzliche Stilbenderivate, 2. Mitt. 3, 5, 3′ 4′‐Tetrahydroxystilben‐3‐D‐glucosid, ein drittes Stilbenglykosid in Rhei rhapontici Radix., Gracza, L., Archiv der Pharmazie, Vol.317(4), 1984, 374-377] \\ |
| | [Hagers Handbuch der pharmazeutischen Praxis, Springer-Verlag, Berlin, 2010] |
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| "The roots of R. rhaponticum were very rich in various hydroxystilbenes and contained four main substance groups –derivatives of trans-piceatannol, [[https://en.wikipedia.org/wiki/Resveratrol|trans-resveratrol]], trans-rhapontigenin and trans-deoxyrhapontigenin. Additionally, pterostilbene acetylglucosides and a number of hydroxyanthraquinones and their glycosides were identified in the root samples. The profile of polyphenols in the petioles of R. rhaponticum was similar to that of the roots but the content of individual substances was remarkably lower. The petioles of the R. rhaponticum additionally contained significant amounts of derivatives of flavonol quercetin, which is a good antioxidant." \\ | "The roots of R. rhaponticum were very rich in various hydroxystilbenes and contained four main substance groups –derivatives of trans-piceatannol, [[https://en.wikipedia.org/wiki/Resveratrol|trans-resveratrol]], trans-rhapontigenin and trans-deoxyrhapontigenin. Additionally, pterostilbene acetylglucosides and a number of hydroxyanthraquinones and their glycosides were identified in the root samples. The profile of polyphenols in the petioles of R. rhaponticum was similar to that of the roots but the content of individual substances was remarkably lower. The petioles of the R. rhaponticum additionally contained significant amounts of derivatives of flavonol quercetin, which is a good antioxidant." \\ |
| [[http://www.biomedcentral.com/content/pdf/1749-8546-5-7.pdf]] | [[http://www.biomedcentral.com/content/pdf/1749-8546-5-7.pdf]] |
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| {{https://upload.wikimedia.org/wikipedia/commons/c/c2/Rhaponticin.png?200}} | {{https://upload.wikimedia.org/wikipedia/commons/c/c2/Rhaponticin.png?400}} [[https://en.wikipedia.org/wiki/Rhaponticin|rhaponticin]] |
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| "Activation of ERβ with rhubarb might be the reason that the extract does not show proliferative effects in uterine tissue and its antiestrogenic effects could be related to its partial agonistic effects for ERs which manifests as antagonistic activity when the full agonist, estradiol, is present. In summary, rhubarb is mainly an ERβ activating plant, although its reported active compounds, lindleyin, rhapontigenin, and desoxyrhapontigenin, are not ERβ-selective." \\ | "Activation of ERβ with rhubarb might be the reason that the extract does not show proliferative effects in uterine tissue and its antiestrogenic effects could be related to its partial agonistic effects for ERs which manifests as antagonistic activity when the full agonist, estradiol, is present. In summary, rhubarb is mainly an ERβ activating plant, although its reported active compounds, lindleyin, rhapontigenin, and desoxyrhapontigenin, are not ERβ-selective." \\ |
| [[http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3800090/]] | [[http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3800090/]] |
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| {{http://plantillustrations.org/ILLUSTRATIONS_HD/155258.jpg?500}} \\ | {{:rhapontic.jpg?600}} \\ |
| Zorn, J., Oskamp, D.L., Vervolg op de Afbeeldingen der artseny-gewassen met derzelver Nederduitsche en Latynsche beschryvingen, vol. 1: t. 47 (1813) \\ | Chaumeton, F.P., Flore médicale, vol.6 t.296 (1832) \\ |
| [[http://plantillustrations.org/species.php?id_species=874418]] | [[http://plantillustrations.org/species.php?id_species=874418]] |
