title: [Ocular pharmacokinetics of puerarin in anesthetic rabbits by microdialysis].
abstract: OBJECTIVE
  To establish the model of microdialysis, and study the ocular pharmacokinetics of puerarin in anesthetic rabbits.
  
  
  METHODS
  Implanted the probe into anterior chamber of anesthetic rabbit by surgery. After balanced for 2 h, 1% puerarin eye drop (100 microL) was applied into the cul-de-sac with micropipette. Immediately the dialysate was collected at different time and detected by HPLC with the detection wavelength of 249 nm. The mobile phase was methanol and 0.1% citric acid solution (30:70); the flow rate was 1.0 mL x min(-1).
  
  
  RESULTS
  After the administration, puerarin can be absorbed into aqueous humor quickly. The peak concentration of puerarin appeared at about 1 h and then reduced gradually. The peak concentration(C(max)) is (2.52 +/- 0.31) mg x L(-1). The other lower peak was shown at 3.5 h during the eliminate phase. This might be attributed to the inhibition of aqueous humor production by the puerarin and resulted in a high drug concentration. The area under concentration-time curve (AUC(0-t)) is (5.04 +/- 0.21) mg x h x L(-1) and the eliminate half life (t1/2) is (0.38 +/- 0.13) h.
  
  
  CONCLUSIONS
  The microdialysis technique can be used to detect the ocular pharmacokinetics of puerarin, and support the valuable pharmacokinetics parameter for the clinical applications of puerarin eye drop.
authors.affiliation: School of Pharmacy, Yantai University, Yantai 264005, China.
authors.forename: Chen
authors.initials: C
authors.lastname: Yao
authors.forename: Xiudi
authors.initials: X
authors.lastname: Zhou
authors.forename: Tao
authors.initials: T
authors.lastname: Qu
authors.forename: Dongyu
authors.initials: D
authors.lastname: Wei
authors.forename: Hongjie
authors.initials: H
authors.lastname: Mu
authors.forename: Rongcai
authors.initials: R
authors.lastname: Liang
authors.forename: Aiping
authors.initials: A
authors.lastname: Wang
authors.forename: Kaoxiang
authors.initials: K
authors.lastname: Sun
mesh_terms: D000758:Anesthesia; D000818:Animals; D005123:Eye / Q000378:metabolism*; D005260:Female; D007529:Isoflavones / Q000493:pharmacokinetics*; D008297:Male; D017551:Microdialysis / Q000379:methods*; D009883:Ophthalmic Solutions; D011817:Rabbits
chemical_list: D007529:Isoflavones; D009883:Ophthalmic Solutions; C033607:puerarin