Volume 19 Issue 4
Nov.  2019
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WEN-JUN LAN, XIAO-XIANG ZHENG. Activity of Ginkgo biloba Extract and Quercetin on Thrombomodulin Expression and Tissue-type Plasminogen Activator Secretion by Human Umbilical Vein Endothelial Cells[J]. Biomedical and Environmental Sciences, 2006, 19(4): 249-253.
Citation: WEN-JUN LAN, XIAO-XIANG ZHENG. Activity of Ginkgo biloba Extract and Quercetin on Thrombomodulin Expression and Tissue-type Plasminogen Activator Secretion by Human Umbilical Vein Endothelial Cells[J]. Biomedical and Environmental Sciences, 2006, 19(4): 249-253.

Activity of Ginkgo biloba Extract and Quercetin on Thrombomodulin Expression and Tissue-type Plasminogen Activator Secretion by Human Umbilical Vein Endothelial Cells

  • In order to investigate the pharmacological properties of Ginkgo biloba extract (GBE) on improving blood circulation, the regulating action of GBE and quercetin (a main flavonoid ingredient in GBE) on thrombomodulin (TM)expression and tissue-type plasminogen activator (t-PA) secretion was studied. Methods Using flow cytometer and gel image system respectively, we evaluated the TM expression and the t-PA secretion by human umbilical vein endothelial cells (HUVECs) in vitro. Results The increase of TM expression on HUVECs surface was induced by GBE rather than quercetin in a dose- and time-dependent manner. Both GBE and quercetin increased the t-PA release significantly.Conclusion The effect of GBE on improving blood circulation may be partly attributed to its promoting TM expression and t-PA secretion by endothelial cells, and quercetin participated in the effect of GBE on t-PA secretion. However, the action of GBE on increasing TM expression needs further study.
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通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Activity of Ginkgo biloba Extract and Quercetin on Thrombomodulin Expression and Tissue-type Plasminogen Activator Secretion by Human Umbilical Vein Endothelial Cells

Abstract: In order to investigate the pharmacological properties of Ginkgo biloba extract (GBE) on improving blood circulation, the regulating action of GBE and quercetin (a main flavonoid ingredient in GBE) on thrombomodulin (TM)expression and tissue-type plasminogen activator (t-PA) secretion was studied. Methods Using flow cytometer and gel image system respectively, we evaluated the TM expression and the t-PA secretion by human umbilical vein endothelial cells (HUVECs) in vitro. Results The increase of TM expression on HUVECs surface was induced by GBE rather than quercetin in a dose- and time-dependent manner. Both GBE and quercetin increased the t-PA release significantly.Conclusion The effect of GBE on improving blood circulation may be partly attributed to its promoting TM expression and t-PA secretion by endothelial cells, and quercetin participated in the effect of GBE on t-PA secretion. However, the action of GBE on increasing TM expression needs further study.

WEN-JUN LAN, XIAO-XIANG ZHENG. Activity of Ginkgo biloba Extract and Quercetin on Thrombomodulin Expression and Tissue-type Plasminogen Activator Secretion by Human Umbilical Vein Endothelial Cells[J]. Biomedical and Environmental Sciences, 2006, 19(4): 249-253.
Citation: WEN-JUN LAN, XIAO-XIANG ZHENG. Activity of Ginkgo biloba Extract and Quercetin on Thrombomodulin Expression and Tissue-type Plasminogen Activator Secretion by Human Umbilical Vein Endothelial Cells[J]. Biomedical and Environmental Sciences, 2006, 19(4): 249-253.

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