title: [Efficient method for analyzing absorbed ingredients of traditional Chinese medicine genitana macrophyllae radix].
abstract: In present study, a method for analyzing the absorbed ingredients of traditional Chinese medicine QinJiao has been developed. A rat everted gut sac (EGS) model has been established, and the transporting capacity of gut sacs was identified by histological examinations. The ingredients including loganic acid, sweroside, gentiopicroside, and swertiamarian in serosal solution absorbed by active transport of rat everted ileum and jejunum from Qinjiao extraction were determined using an HPLC method. Histological integrality of the gut sacs remains perfect and the active transport activity of them is normal within 45 min of the experiment. The HPLC method employed in this study presents high specificity and good correlation. The relative standard deviation of precision of this method is less than 5.5%. Extraction recovery of samples is more than 90%. And stability of the samples in room temperature is perfect. Eight ingredients of Qinjiao absorbed in serosal solution are identified. Furthermore, concentration of Qinjiao extraction significantly affects accumulated absorption and absorption coefficient of the ingredients. However, there is no significant impact on the accumulated absorption and absorption coefficient by diverse of everted gut sections. From above, the EGS techniques might be an efficient method, which can be employed for investigation of absorbed ingredients of Traditional Chinese Medicines.
authors.affiliation: Aviation Medical Institute, Air Force, Beijing 100142, China.
authors.forename: Jin-Wu
authors.initials: JW
authors.lastname: Zhu
authors.affiliation: Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
authors.forename: Bei
authors.initials: B
authors.lastname: Song
authors.affiliation: The Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850, China.
authors.forename: Wen-Sheng
authors.initials: WS
authors.lastname: Qu
authors.affiliation: The Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850, China.
authors.forename: Yan-Sheng
authors.initials: YS
authors.lastname: Dong
authors.affiliation: Aviation Medical Institute, Air Force, Beijing 100142, China.
authors.forename: Meng-Sun
authors.initials: MS
authors.lastname: Yu
authors.affiliation: Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
authors.forename: Jing-Jing
authors.initials: JJ
authors.lastname: Zhu
mesh_terms: D000818:Animals; D002851:Chromatography, High Pressure Liquid; D004365:Drugs, Chinese Herbal / Q000032:analysis / Q000493:pharmacokinetics*; D007408:Intestinal Absorption; D007413:Intestinal Mucosa / Q000378:metabolism*; D008297:Male; D051381:Rats; D017208:Rats, Wistar
chemical_list: D004365:Drugs, Chinese Herbal