HELIOTROPIUM HIRSUTISSIMUM, HELIOTROPIUM DOLOSUM VE HELIOTROPIUM LASIOCARPUM METANOL EKSTRELERİNİN FAREDE PENTİLENTETRAZOL İNDÜKLÜ NÖBETLERE ETKİSİ

Abstract

Amaç: Epilepsi antik dönemlerden bu yana bilinen yaygın bir nörolojik problemdir. Epilepsinin modern tedavisi nöbetleri engelleyici ilaçlar ile yapılmaktadır. İlaç tedavisine dirençli hastaların varlığı nedeniyle yeni antiepileptik ilaçların arayışı devam etmektedir. Bitkiler yeni ilaçların bulunabilmesi için önemli bir kaynaktır. Bu çalışmada Heliotropium (Türkçe; Akrep otu, Siğil otu) türlerinin; Heliotropium hirsutissimum Grauer, H. dolosum De Not ve H. lasiocarpum Fisch. et Mey.’in faredeki etkilerini değerlendirmeyi amaçladık. 

Gereç ve Yöntem: Nöbetlerin oluşması için PTZ (pentilentetrazol) kullanıldı. Deney grupları PTZ ve bahsedilen 3 Heliotropium türünün ekstreleri+PTZ olarak belirlendi. 

Sonuç ve Tartışma: H. hirsutissimum ve H. lasiocarpum gruplarında, tonik-klonik nöbete giren hayvan sayısı PTZ ve H. dolosum gruplarına göre azaldı ancak istatistik anlamlılık gözlenmedi. İlk miyoklonik nöbet ve ilk tonik-klonik nöbet için gereken süre tüm Heliotropium gruplarında PTZ grubuna göre uzadı (p>0.05). Bu tonik klonik nöbetler sonrasında ölen hayvan sayısı tüm Heliotropium gruplarında azaldı (p>0.05). Tonikklonik nöbet süresi H. hirsutissimum ve H. lasiocarpum gruplarında azaldı (p>0.05). Sonuçlar birlikte değerlendirildiğinde Heliotropium türlerinin antikonvülsif olarak etnobotanik kullanımının bir karşılığını olabileceğini düşündürmektedir.

Keywords

• epilepsy,Heliotropium,nöbet,PTZ,pentilentetrazol

EFFECT OF HELIOTROPIUM HIRSUTISSIMUM, HELIOTROPIUM DOLOSUM AND HELIOTROPIUM LASIOCARPUM METHANOLIC EXTRACTS IN PENTYLENTETRAZOL INDUCED CONVULSIONS ON MICE

Abstract

Objective: Epilepsy is a common neurological problem known since ancient times. Modern treatment of epilepsy includes treatment with drugs to avoid seizures. Search for new antiepileptic drugs continues due to the presence of resistant patients to drug treatment. Plants are important sources of new drug discovery for epilepsy. We aimed to evaluate anticonvulsive activity of methanolic extracts of Heliotropium (Scorpion herb, Herb for warts in Turkish) species namely Heliotropium hirsutissimum Grauer, H. dolosum De Not and H. lasiocarpum Fisch. et Mey. on mice.

Material and Method: PTZ (pentylentetrazol) is used for the induction of convulsions. Experimental groups are PTZ and 3 groups of extracts of aforementioned Heliotropium species+PTZ.

Result and Discussion: In H. hirsutissimum and H. lasiocarpum groups, number of animals having tonic-clonic convulsions was decreased compared to PTZ and H. dolosum groups however difference was found insignificant. Latency time for first myoclonic convulsion and latency time for first tonic-clonic convulsion were prolonged in all Heliotropium groups compared to PTZ group (p>0.05). Number of ex animals following tonicclonic convulsions decreased in Heliotropium groups (p>0.05). Tonic-clonic convulsion period decreased in H. hirsutissimum and H. lasiocarpum (p>0.05). When results are evaluated together Heliotropium species may have an ethnopharmacological relevance for its anticonvulsive usage.

Keywords

• convulsion,epilepsy,Heliotropium,PTZ,pentylentetrazol

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