title: A capillary gas chromatography-selected ion monitoring mass spectrometry method for the analysis of atractylenolide I in rat plasma and tissues, and application in a pharmacokinetic study.
abstract: The aim of this paper is to investigate the characteristics of atractylenolide I (AO-I) in the body by a GC-MS method. All bio-samples were cleared up with a liquid-liquid extraction procedure. The calibration curves were linear within a range of 5-1000 ng/mL for plasma samples, 0.06-16.00 microg/g for cerebellum samples, and 0.03-8.00 microg/g for other tissue samples. The limit of quantification (LOQ) for AO-I was 1.0 ng/mL or 1.0 ng/g (S/N>micro=10) in the bio-samples. In the applications, the main pharmacokinetic parameters were firstly obtained as follows: Tmax=0.37+/-0.19 h, Cmax=0.26+/-0.05 microg/mL, AUC=1.95+/-0.30 microgh/mL and ka=10.08+/-5.60 h(-1). The tissue distribution of AO-I in rats after the oral administration of 50.0mg/kg was from 0.225 to 0.031microg/g with a decreasing tendency in different tissues like liver>kidney>spleen>cerebellum>heart>cerebrum>lung. The protein binding in rat plasma, human plasma and bovine serum albumin was 80.8+/-3.9, 90.6+/-3.1 and 60.9+/-5.1%, respectively.
authors.affiliation: School of Medicine, Xi'an Jiaotong University, Xi'an 710061, PR China.
authors.forename: Changhe
authors.initials: C
authors.lastname: Wang
authors.forename: Sicen
authors.initials: S
authors.lastname: Wang
authors.forename: Qinhua
authors.initials: Q
authors.lastname: Chen
authors.forename: Langchong
authors.initials: L
authors.lastname: He
mesh_terms: D000284:Administration, Oral; D000818:Animals; D019540:Area Under Curve; D031174:Atractylodes / Q000737:chemistry / Q000378:metabolism; D002138:Calibration; D054022:Cerebrum / Q000737:chemistry / Q000378:metabolism; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D007668:Kidney / Q000737:chemistry / Q000378:metabolism; D007783:Lactones / Q000737:chemistry / Q000302:isolation & purification* / Q000493:pharmacokinetics; D008099:Liver / Q000737:chemistry / Q000378:metabolism; D008168:Lung / Q000737:chemistry / Q000378:metabolism; D008297:Male; D009206:Myocardium / Q000737:chemistry / Q000378:metabolism; D018517:Plant Roots / Q000737:chemistry / Q000378:metabolism; D011485:Protein Binding; D051381:Rats; D017207:Rats, Sprague-Dawley; D012680:Sensitivity and Specificity; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification* / Q000493:pharmacokinetics; D013154:Spleen / Q000737:chemistry / Q000378:metabolism; D014018:Tissue Distribution
chemical_list: D007783:Lactones; D012717:Sesquiterpenes; C424804:atractylenolide I