Description: |
(2R,3R)-2',3,5,6'7-pentahydroxyflavanone(2',3,5,6',7-Pentahydroxyflavanone) can inhibit the histamine release from rat mast cells induced by compound 48/80. It inhibits the lipid peroxide formation by Feand ascorbic acid, it also inhibits the lipid peroxide formation induced by adenosine diphosphate and reduces nicotinamide adenine dinucleotide phosphate in rat liver homogenate.
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In vitro: |
Chem. Pharm. Bull., 1984, 32(12):5051-4. | Scutellariae radix. X. Inhibitory effects of various flavonoids on histamine release from rat peritoneal mast cells in vitro.[Reference: WebLink] | The effects of various flavonoids isolated from the roots of Scutellaria baicalensis on the histamine release from mast cells were investigated.
METHODS AND RESULTS:
Many of the flavonoids (wogonin, wogonin-7-O-D-glucuronide, baicalein, skullcapflavanone II, (2S)-2',5,6',7-tetrahydroxyflavanone, (2R,3R)-2',3,5,6',7-Pentahydroxyflavanone and 2',5,5',7-tetrahydroxy-6'-8-dimethoxyflavone) inhibited the histamine release from rat mast cells induced by compound 48/80. | Chem Pharm Bull (Tokyo). 1982 May;30(5):1792-5. | Studies on Scutellariae radix. VI. Effects of flavanone compounds on lipid peroxidation in rat liver.[Reference: WebLink] | Compounds (I and II) which inhibited lipid peroxides formation (in in vitro experiments) were isolated together with various flavonoids from the roots of Scutellaria baicalensis GEORGI.
METHODS AND RESULTS:
From the analytical and physical data, compounds I and II were identified as (2S)-2', 5, 6', 7-tetrahydroxyflavanone and (2R, 3R)-2',3,5,6',7-Pentahydroxyflavanone, respectively. Compound II inhibited the lipid peroxide formation by Feand ascorbic acid. Compounds I and II inhibited the lipid peroxide formation induced by adenosine diphosphate and reduced nicotinamide adenine dinucleotide phosphate in rat liver homogenate. |
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