Evaluation of Hydro-alcoholic Extract of Clerodendrum myricoides (Hochst. Vatke) Leaves and Its Solvent Fractionsin Pentylenetetrazole-Induced Convulsion in Mice
Teketel Eristu Kediso, Tesfaye Tolessa, Fikirte Getachew, Eyasu Makonnen, Daniel Seifu
Journal of Complementary and Alternative Medical Research · pp. 1–10 · Published 3 Sep 2020
10.9734/jocamr/2020/v10i330163Abstract
Introduction: Epilepsy is a chronic neurological disorder that affects people of all ages. Herbal medicines are widely used across the globe due to their wide applicability and therapeutic efficacy. The low side effects of traditional herbal medicines have encouraged many types of research into antiepileptic activity. Clerodendrum myricoides is a plant whose leaves extract is traditionally used as an anticonvulsant in Ethiopia. Objective: The point of this investigation was to assess the anticonvulsant effect of the hydro-alcoholic extract and solvent fractions of C. myricoides leaves against pentylenetetrazole-induced seizures in mice. Methods: Comparison of mean latency to onset of convulsion, mean duration of convulsions, and the proportion of percentage protection against seizure of the plant extract was tested against PTZ-induced seizures. Three different doses were used by giving them orally 30 minutes before subcutaneous pentylenetetrazole (80 mg/kg) administration with the positive (diazepam 2 mg/kg) and negative (physiological saline 10 mg/kg) control groups. Data were presented as the mean ± standard error of the mean and analyzed using a one-way analysis of variance (ANOVA) and followed by post-hoc Tukey’s multiple comparisons test. Fisher’s exact test was used for the percentage protection. P < 0.05 was considered statistically significant. Results: The crude extract of C. myricoides, with the doses of 300, 600, 1,200 mg/kgshowed a significant delay in mean latency to onset of seizures [299.33±30.129 sec (p< 0.05); 387.167± 27.6 sec (p<0.01); 417.833±31.9 sec (p<0.001); respectively)]; decrease in the duration of convulsion [27.333±1.585 sec (p<0.05); 16.833±1.537 sec (p<0.01); 10.50±0.671 sec (p<0.001) respectively]; and a proportion of percentage protection of mice against seizure [16.33% (1/6) (p< 0.05); 33.33% (2/6) (p<0.01); 50% (3/6) (p<0.001) respectively] in a dose-dependent manner compared to the control group [92.833±13.006 sec; 34.167±3.683 sec, 0% respectively]. C. myricoides anticonvulsant activity was less than that of diazepam [1001.16± 68.430 sec, 4.500±0.619, 83.33 sec, 83.33% respectively for the doses]. Its solvent fractions, however, didn’tshow a significant anticonvulsant effect. Conclusion: The hydroalcoholic leaves crude extract of C. myricoides has anticonvulsant activity but its solvent fractions do not have comparable significant effects.
References (10)
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