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Molecules. 2005 Sep 30;10(9):1135-44.

Poly[3-(3,4-dihydroxyphenyl)glyceric acid], a new biologically active polymer from Symphytum asperum Lepech. and S. caucasicum Bieb. (Boraginaceae).

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Kutateladze Institute of Pharmacochemistry, Georgian Academy of Sciences, Georgia.


Two high-molecular water-soluble preparations with high anticomplementary, antioxidant, antilipoperoxidant and antiinflammatory activities were isolated from the roots of Symphytum asperum and S. caucasicum. Their main chemical constituent was found to be poly[oxy-1-carboxy-2-(3,4-dihydroxyphenyl)ethylene], according to IR and NMR spectroscopy. The Symphytum high-molecular preparations can modulate in vitro B- chronic lymphocytic leukaemia (B-CLL) cells apoptosis and cell cycle progression.

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