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--- swertia_chirayita_roxb._h.karst [2015/03/11 09:48] – andreas
+++ swertia_chirayita_roxb._h.karst [2015/06/13 09:40] (aktuell) – Externe Bearbeitung 127.0.0.1
@@ Zeile 7: / Zeile 7: @@
 [Swertia chirayita- an overview., Joshi, P., Dhawan, V., Current Science -Bangalore-, Vol.89(4), 2005, 635] \\
 [[http://tejas.serc.iisc.ernet.in/~currsci/aug252005/635.pdf]]
+The root extracts showed three main constituents and their derivatives (HPLC): mangiferin (0.001-0.46mg/g dry weight), amarogentin (0.002-0.28mg/g dry weight) and [[http://www.drugfuture.com/chemdata/Swertiamarin.html|swertiamarin]] (0.01-1.28mg/g dry weight) were identified in aqueous and 12% ethanolic extracts of all plant parts. \\
+... mangiferin, amarogentin and swertiamarin have been reported to possess properties such as antihypoglycemic,
+antilipidemic, antiatherogenic, cardioprotective, immunodilatory, cardiotonic, anti-inflammatory, analgesic,
+antioxidant, gastroprotective, hepatoprotective, anticholerogenic which may be responsible for its therapeutic action against diabetes, hypertension, chronic fever and their complications. \\
+The infusion of Swertia chirayita is locally used in Nepal as an anti-diabetic. A review of literature indicates that mangiferin seem to have several modes of actions for counteracting diabetes and its complications; directly by stimulating insulin production, enhancing glycolytic enzymes, inhibiting alpha-glucosidase and other enzymes such as maltase, sucrase, isomaltase and aldose reductase and indirectly by its
+antioxidant capacity and analgesic, anti-inflammatory, antiatherogenic, cardioprotective and antihyperlipidemic properties." \\
+[Quantification of major phytochemicals of Swertia chirayita, a medicinal plant from nepal., Phoboo, S., Pinto, M.D.S., Bhowmik, P.C., Jha, P.K., Shetty, K., Ecoprint: An International Journal of Ecology, Vol.17, 2010, 59-68] \\
+[[http://www.nepjol.info/index.php/ECO/article/download/4118/3477]]
 "Due to over-harvesting, lack in conservation and cultivation, this species is still in threat as categorized
@@ Zeile 12: / Zeile 21: @@
 production and marketing is the major concern along with the dissemination of cultivation technology...\\
 Chiretta plants constitute two main intensely bitter principles, ophelic acid and chiratin both amorphous
-and indistinctly crystalline yellow substances. Acceptable level of bitter principle content is above 1.3 %, which contains a bitter glycoside amarogentin, numerous tetra oxygenated xanthones including swertinin (7,8-dihydroxy 1,3-dimethoxyxanthone), swertianin (1,7,8-trihydroxy-3-methoxyxanthone), swerchirin (1,8-dihydroxy- 3,5-dimethoxyxanthone), decussating (1-hydroxy 2,6,8-trimethoxyxanthone), isobelidifolin (1,6,8-trihydroxy-4- methoxyxanthone, 1,3,7,8-tetrahydroxyxanthones), 1,8-dihydroxy-3,7-dimethoxyxanthone, 1-hydroxy 3,5,8-trimethoxyxanthone, mangiferin (1,3,6,7-tetrahydroxyxanthon-c2-alpha-D-glycoside, and several other; triterpenes (luperol, alpha-amyrin, etc) and monoterpene alkaloids, among others...\\
+and indistinctly crystalline yellow substances. Acceptable level of bitter principle content is above 1.3 %, which contains a bitter glycoside amarogentin, numerous tetra oxygenated xanthones including swertinin (7,8-dihydroxy 1,3-dimethoxyxanthone), swertianin (1,7,8-trihydroxy-3-methoxyxanthone), swerchirin (1,8-dihydroxy- 3,5-dimethoxyxanthone), decussarin (1-hydroxy 2,6,8-trimethoxyxanthone), isobelidifolin (1,6,8-trihydroxy-4-methoxyxanthone, 1,3,7,8-tetrahydroxyxanthones), 1,8-dihydroxy-3,7-dimethoxyxanthone, 1-hydroxy 3,5,8-trimethoxyxanthone, mangiferin (1,3,6,7-tetrahydroxyxanthon-c2-alpha-D-glycoside, and several other; triterpenes (luperol, alpha-amyrin, etc) and monoterpene alkaloids, among others...\\
 The bitter principle as a main indicator of medical herbs, varied from 0.95 to 2.0% in the tested samples of
 Chiraito. Higher bitter principle (2%) was found from wild Chiraito of 4 locations (Taplejung-Suketar and
@@ Zeile 18: / Zeile 27: @@
 [Quality of Chiretta (Swertia chirayita) in Cultivated and Wild Samples Collected from Different Districts of Nepal., Barakoti, T.P., Tiwari, N.N., Yonzon, M., Nepal Journal of Science and Technology, Vol.13(2), 2013, 57-62] \\
 [[http://www.nepjol.info/index.php/NJST/article/download/7715/6295]]
+Swertiamarin content in extracts of S.chirayita from different locations was 0.7-1.4%. \\
+[Quantitative Determination of Swertiamarin in Swertia chirayita by HPTLC, Laiqa Anjum, Zainul A.Ansari, Aradhna Yadav, Mohd. Mughees, Javed Ahmad, Altaf Ahma, International Journal of Engineering Research and General Science, Vol.2(6), 2014, 85-92] \\
+[[http://ijergs.org/files/documents/QUAN-11.pdf]]
+{{:swertia_c.jpg?500}} \\
+Swertia chirayita (Roxb.) Karsten [as Gentiana chirata] \\
+Wallich, N., Plantae Asiaticae Rariores, vol.3: t.252 (1832) [n.a.]\\
+[[http://plantgenera.org/species.php?id_species=988188]]