title: [Effect of uncaria on evoked field potential of hippocampal slice in epileptogenic rat].
abstract: OBJECTIVE
  To investigate the effect of uncaria on evoked field potential of CA1 hippocampal slice in epileptogenic model.
  
  
  METHODS
  We made rats which were injected by pilocarpine as epileptic-models. The pathway of drug administration is titration adjacent to hippocampal slices. We recorded the evoked field potential of hippocampal slice by glass microelectrode extracellularly, and observed the effect of uncaria on the amplitude of population spike (PS) in CA1 pyramidal cells in hippocampal slices.
  
  
  RESULTS
  The uncaria with concentration of 1 g/ml could reduce the amplitude of PS in CA1 of hippocampal slices. The average of fall was 27.64%, and restored in 8.71 minutes on average (n = 14, P < 0.01).
  
  
  CONCLUSIONS
  Uncaria could reduce the amplitude of PS in CA1 of epileptic hippocampal slices remarkably. These results show that uncaria can inhabited the synaptic transfer activity of CNS remarkably, suggest that it has the distinct effect of anti-epilepsy.
authors.affiliation: Department of Physiology, Tianjin Medical University, Tianjin 300070, China.
authors.forename: S M
authors.initials: SM
authors.lastname: Xu
authors.forename: J Y
authors.initials: JY
authors.lastname: He
authors.forename: L X
authors.initials: LX
authors.lastname: Lin
mesh_terms: D000818:Animals; D056547:CA1 Region, Hippocampal / Q000187:drug effects* / Q000502:physiology; D004195:Disease Models, Animal; D004365:Drugs, Chinese Herbal / Q000494:pharmacology; D004827:Epilepsy / Q000503:physiopathology*; D005071:Evoked Potentials / Q000187:drug effects*; D066298:In Vitro Techniques; D017966:Pyramidal Cells / Q000187:drug effects / Q000502:physiology; D051381:Rats; D017208:Rats, Wistar; D032070:Uncaria
chemical_list: D004365:Drugs, Chinese Herbal