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KMID : 0613820130230121460
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Journal of Life Science
2013 Volume.23 No. 12 p.1460 ~ p.1470
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Anticoagulant and Fibrinolytic Activities of Hwanggeumchal Sorghum In Vitro
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Kim Min-Soo
Oh In-Taek
Jun Do-Youn
Lee Ji-Young
Sohn Ho-Yong
Kwak Do-Yeon
Seo Myung-Chul
Woo Koan-Sik
Ko Jee-Yeon
Jung Tae-Wook
Nam Min-Hee
Woo Mi-Hee
Kim Young-Ho
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Abstract
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To examine whether miscellaneous cereal grains have an antithrombotic effect, we investigated the anticoagulant activity of 80% ethanol extracts from eleven selected miscellaneous cereal grains. The 80% ethanol extract of hwanggeumchal sorghum (Sorghum bicolor) showed the highest anticoagulant activity, followed by that of green foxtail millet grains, in terms of thrombin time (TT). When the ethanol extract of hwanggeumchal sorghum was sequentially fractionated with n-hexane, methylene chloride, ethyl acetate, and n-butanol, the majority of the TT-inhibitory activity was detected in the hexane and methylene chloride fractions. Whereas aspirin (final conc. 480 μg/ml) prolonged TT by 2-fold, the ethanol extract, hexane fraction, and methylene chloride fraction in the same dose prolonged TT by 2.2-fold, 2.9-fold, and 2.5-fold, respectively. The ethanol extract of hwanggeumchal sorghum could delay activated partial thromboplastin time (APTT) as well as prothrombin time (PT). Although the APTT-inhibitory activity of the ethanol extract was mainly partitioned into the hexane and methylene chloride fractions, the PT-inhibitory activity of the ethanol extract was solely partitioned into the hexane fraction. The APTT- and PT-inhibitory activities of these organic solvent fractions were more potent than those of the control warfarin (final conc. 3.13 mg/ml). The TT-inhibitory activity of the ethanol extract was heat-stable and acid-stable. The ethanol extract, hexane fraction, and methylene chloride fraction of hwanggeumchal sorghum appeared to possess a direct fibrinolytic activity toward fibrin clotting. These results show that hwanggeumchal sorghum can exert anticoagulant and fibrinolytic effects and, thus, have the potential to be applicable as antithrombotic dietary sources.
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KEYWORD
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Anticoagulant activity, antithrombotic dietary source, fibrinolytic activity, hwanggeumchal sorghum (Sorghum bicolor) grains, miscellaneous cereal grains
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