Spasmolytic and Ca++ Channel Blocking Potential of Nepetolide: Isolated from Nepeta suavis.
Nepeta suavis is used in traditional medicine for treatment of abdominal spasm (colic). The tricyclic clerodane type diterpene, nepetolide, isolated for the first time from Nepeta suavis, was evaluated for Ca++ antagonist and antispasmodic activities. When studied in isolated rabbit jejunum, nepetolide caused concentration-dependent (0.03-100 μM) relaxation of spontaneous and high K+ (80 mM)-induced contractions, like that caused by verapamil, indicating that nepetolide exhibits spasmolytic activity, possibly mediated through Ca++ channel blocking action, which provides scientific explanation for the medicinal application of Nepeta suavis as an antispasmodic agent.
Farman Ullah
FU
Khan
Arif-ullah
AU
Khanc
Javid
J
Hussain
Ihsan Ullah
IU
Khan
Nawshad
N
Muhammad
Aslam
A
Khan
Sultan
S
Mehmood
Abdullah Mohamed
AM
Asiri
Sher Bahadar
SB
Khan
Anwarul Hassan
AH
Gilani
D000818:Animals; D002121:Calcium Channel Blockers / Q000302:isolation & purification*; D004224:Diterpenes / Q000302:isolation & purification / Q000494:pharmacology*; D066298:In Vitro Techniques; D007583:Jejunum / Q000187:drug effects*; D027521:Nepeta / Q000737:chemistry*; D010276:Parasympatholytics / Q000302:isolation & purification*; D011817:Rabbits
D002121:Calcium Channel Blockers; D004224:Diterpenes; D010276:Parasympatholytics; C000609530:nepetolide