title: Pharmacokinetic study of ginsenosides Rb1 and Rg1 in rat by ELISA using anti-ginsenosides Rb1 and Rg1 monoclonal antibodies.
abstract: Enzyme-linked immunosorbent assay (ELISA) systems using anti-ginsenoside Rb1 (G-Rb1) and Rg1 (G-Rg1) monoclonal antibodies (MAbs) were established for pharmacokinetic investigations of G-Rb1 and G-Rg1 in rat serum. The systems not only allowed sensitive detection of G-Rb1 at the level as low as 20 ng/ml and of G-Rg1 at 300 ng/ml, but showed strong capacity for detecting the two agents in a broad concentration range (20 to 400 ng/ml for G-Rb1 and 0.3 to 10 microg/ml for G-Rg1, respectively). In this respect, these assay systems are superior to other methods using thin-layer chromatography (TLC) or high-performance liquid chromatography (HPLC). In addition, another advantage of these immunoassays is the comparably low quantities of specimen required; as little as 5 microl of serum suffices the need for determination of ginsenosides. We report in this article the application of this immunoassay in pharmacokinetic study of G-Rb1.
authors.affiliation: School of TCM, Southern Medical University, Guangzhou 510515, China.
authors.forename: Zhi
authors.initials: Z
authors.lastname: Chao
authors.forename: Yukihiro
authors.initials: Y
authors.lastname: Shoyama
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Tanaka
mesh_terms: D000818:Animals; D000911:Antibodies, Monoclonal / Q000276:immunology; D004797:Enzyme-Linked Immunosorbent Assay; D036145:Ginsenosides / Q000097:blood / Q000276:immunology / Q000493:pharmacokinetics*; D008297:Male; D015394:Molecular Structure; D051381:Rats; D017207:Rats, Sprague-Dawley
chemical_list: D000911:Antibodies, Monoclonal; D036145:Ginsenosides; C442759:ginsenoside Rb1; C035054:ginsenoside Rg1