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Alkaloids of Aconitum spec. (Ranunculaceae) are employed in traditional Chinese folk medicine as analgesics. The present study was designed in order to investigate the effects of the structurally related alkaloids aconitine, lappaconitine, and 6-benzoylheteratisine on experimentally induced
Aconitine, lappaconitine and ajacine are structurally related alkaloids occurring in several species of the Aconitum genus. While aconitine is known to activate the voltage-dependent sodium channel, lappaconitine has been reported to block this channel. To investigate a possible antagonism of the
Lappaconitine, a C19 diterpenoid alkaloid from Aconitum sinomontanum has been reported to possess analgesic and antiinflammatory properties in vivo and to inhibit neuronal activity in brain slices. In the present study the effect of lappaconitine has been compared with the effects of its main
The structurally related Aconitum alkaloids aconitine, lappaconitine, and 6-benzoylheteratisine inhibited the orthodromic and antidromic population spike in hippocampal CA1 area in a frequency-dependent manner. Aconitine (1 microM) completely suppressed epileptiform activity induced by omission of
Aconitine is a highly toxic diterpenoid alkaloid occurring in plants of the Aconitum genus. Aconitine is known to shift the voltage-dependence of the voltage-dependent Na(+) channel towards hyperpolarized direction, thereby leading to a permanent activation of the channel. 6-benzoylheteratisine is a