Pharmacokinetic comparative study of tetramethylpyrazine and ferulic acid and their compatibility with different concentration of gastrodin and gastrodigenin on blood–stasis migraine model by blood–brain microdialysis method

• Published in: Journal of pharmaceutical and biomedical analysis 2020-01, Vol.177, p.112885, Article 112885
• Main Authors: Mi, Yahui, Guo, Siyu, Cheng, Huan, Liu, Mingping, Wei, Pinqing, Wang, Meijing, Mao, Yukang, Ke, Guohan
• Format: Article
• Language: English
• Subjects: Administration, Oral; Animals; Benzyl Alcohols - administration & dosage; Benzyl Alcohols - pharmacokinetics; Blood-Brain Barrier - chemistry; Blood-Brain Barrier - cytology; Blood-Brain Barrier - metabolism; Cold Temperature - adverse effects; Coumaric Acids - administration & dosage; Coumaric Acids - pharmacokinetics; Disease Models, Animal; Dose-Response Relationship, Drug; Drug Interactions; Drugs, Chinese Herbal - administration & dosage; Drugs, Chinese Herbal - chemistry; Drugs, Chinese Herbal - pharmacokinetics; Extracellular Fluid - chemistry; Ferulic acid; Gastrodia; Gastrodia - chemistry; Gastrodigenin; Glucosides - administration & dosage; Glucosides - pharmacokinetics; Humans; Ligusticum - chemistry; Male; Microdialysis; Migraine; Migraine Disorders - blood; Migraine Disorders - drug therapy; Migraine Disorders - etiology; Permeability; Pharmacokinetic; Pyrazines - administration & dosage; Pyrazines - pharmacokinetics; Rats; Specific Pathogen-Free Organisms; Tetramethylpyrazine; Vasoconstriction - drug effects
• ISSN: 0731-7085; 1873-264X
• DOI: 10.1016/j.jpba.2019.112885

[Display omitted] •Cold stimulate vasoconstriction which was based on the migraine model, because of that, a dual model was created.•The pharmacokinetic effects containing Gastrodin and Gastrodigenin on TMP and FA of Ligusticum chuanxiong was studied..•The PK of active constituents of traditional Chinese medicine was studied by blood-brain microdialysis method. Tianma pills, a traditional formula made from Ligusticum chuanxiong and Gastrodia elata, are efficacious for the treatment of primary headache. Tetramethylpyrazine (TMP) and Ferulic acid (FA) are the bioactive ingredients of Ligusticum chuanxiong, while Gastrodin and Gastrodigenin are the bioactive ingredients of Gastrodia elata. Pharmacokinetic assessment of TMP, FA, gastrodin or gastrodigenin in blood or brain interstitial fluid (BIF) has been reported in healthy animals. However, the pharmacokinetic properties of TMP and FA have not been studied when they are co–administered in a blood–stasis migraine model. The present research investigated the pharmacokinetic behavior of TMP and FA after oral administration in the presence of different concentrations of gastrodin and gastrodigenin in a blood–stasis migraine model. Pharmacokinetic parameters were determined using blood–brain microdialysis in combination with the UHPLC–MS method. Compared to the control group, in which TMP and FA were administrated without gastrodin or gastrodigenin, the T1/2, MRT, Cmax and AUC0–∞ of TMP and FA were increased. These results indicate that varying concentrations of gastrodin and gastrodigenin play an important role in affecting the pharmacokinetics of TMP and FA. Low concentrations of gastrodin and gastrodigenin (similar to those found in Tianma pills) were more efficacious, validating the utility of the ancient formulation.