Effects of the fruit essential oil of Cuminum cyminum Linn. (Apiaceae) on pentylenetetrazol-induced epileptiform activity in F1 neurones of Helix aspersa.
The effect of the fruit essential oil of Cuminum cyminum Linn. (Apiaceae) (syn. Cuminum odorum Salisb) on the epileptiform activity induced by pentylenetetrazol (PTZ) was evaluated, using intracellular technique. The results demonstrated that extracellular application of the essential oil of Cuminum cyminum (1% and 3%) dramatically decreased the frequency of spontaneous activity induced by PTZ in a time and concentration dependent manner. In addition it showed protection against pentylenetetrazol-induced epileptic activity by increasing the duration, decreasing the amplitude of after hyperpolarization potential (AHP) following the action potential, the peak of action potential, and inhibition of the firing rate. These membrane effects suggest cellular mechanisms by which the essential oil of Cuminum cyminum can inhibit the PTZ-induced epileptic activity.
Janahmadi
Mahyar
M
Department of Physiology and Neuroscience Research Center, Shaheed Beheshti Medical Sciences University, P.O. Box 19835-181, Tehran, Iran. mjanahmadi@yahoo.com
Niazi
Farshad
F
Danyali
Samira
S
Kamalinejad
Mohammad
M
D000200:Action Potentials / Q000187:drug effects / Q000502:physiology; D000818:Animals; D028527:Cuminum; D004827:Epilepsy / Q000139:chemically induced / Q000188:drug therapy / Q000503:physiopathology; D005638:Fruit; D006372:Helix, Snails / Q000187:drug effects*; D009474:Neurons / Q000187:drug effects* / Q000502:physiology; D009822:Oils, Volatile / Q000302:isolation & purification / Q000494:pharmacology* / Q000627:therapeutic use; D010433:Pentylenetetrazole / Q000633:toxicity*; D010936:Plant Extracts / Q000302:isolation & purification / Q000494:pharmacology / Q000627:therapeutic use
D009822:Oils, Volatile; D010936:Plant Extracts; D010433:Pentylenetetrazole