Abstract:
BACKGROUND:In China the ginseng root began to be used in medicine over 2000 years ago. Ginsenosides are the most important component isolated from ginseng. The authors investigated the effect of ginsenoside Rg1 on the spectrum of gene expression in the endothelial cells stimulated by TNF-alpha and further explored the potential molecular mechanism of endothelial protection by ginsenoside Rg1. METHODS:Nitric oxide (NO) production in the cultured human umbilical vein endothelial cells (HUVECs) was measured by using an NO assay kit. A home-made oligonucleotide microarray containing approximately 400 cardiovascular disease-related genes was constructed. The alteration of the spectrum of gene expression induced by ginsenoside Rg1 in HUVECs which were activated by TNF-alpha were detected by oligonucleotide microarray analysis. RESULTS:NO production in HUVECs was decreased significantly after TNF-alpha treatment, while pretreatment with ginsenoside Rg1 enhanced NO production in TNF-alphastimulated HUVECs. Ginsenoside Rg1 affected the expression levels of genes involved in vascular constriction, cell adherence, coagulation, cell growth and signal transduction in TNF-alphastimulated HUVECs. CONCLUSIONS:Ginsenoside Rg1 could enhance NO production and the expression of eNOS mRNA in TNF-alpha stimulated HUVECs. Ginsenoside Rg1 regulated sets of genes in endothelial cells and protected endothelial cells from TNF-alpha activation. Microarray analysis provided us with valuable insights into the atheroprotective mechanism by gingsenoside Rg1.
journal_name
Chin Med J (Engl)journal_title
Chinese medical journalauthors
Lü JP,Ma ZC,Yang J,Huang J,Wang SR,Wang SQkeywords:
subject
Has Abstractpub_date
2004-06-01 00:00:00pages
871-6issue
6eissn
0366-6999issn
2542-5641journal_volume
117pub_type
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