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Cardiac stimulant activity of Ocimum basilicum Linn. extracts
OBJECTIVE: To evaluate the cardiac effects of extracts derived from the aerial parts of Ocimum basilicum Linn. MATERIAL AND METHODS: The aerial parts of Ocimum basilicum Linn. were extracted with 95% ethanol and double distilled water. The extracts were screened for their effects on frog-heart in...
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Published in: | Indian journal of pharmacology 2004-12, Vol.36 (3), p.163 |
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Main Author: | |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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Summary: | OBJECTIVE: To evaluate the cardiac effects of extracts derived from
the aerial parts of Ocimum basilicum Linn. MATERIAL AND
METHODS: The aerial parts of Ocimum basilicum Linn. were extracted
with 95% ethanol and double distilled water. The extracts were screened
for their effects on frog-heart in situ preparation. Enzyme studies
such as Na+/K+ ATPase, Ca2+ATPase and Mg2+ATPase were done on the heart
tissue aspartate transaminase (AST), alanine transaminase (ALT),
lactate dehydrogenase (LDH) and creatine phosphokinase (CPK) were
estimated in the heart tissue and serum of albino rats after
administering the extracts for 7days. RESULTS: The alcoholic extract
produced significant positive ionotropic and negative chronotropic
actions on frog heart. The positive ionotropic effect was selectively
inhibited by nifedipine. A significant decrease in membrane Na+/K+
ATPase, Mg2+ATPase and an increase in Ca2+ATPase pointed the basis for
the cardiotonic effect. The aqueous extract produced positive
chronotropic and positive ionotropic effects which were antagonized by
propranolol indicating that these might have been mediated through
β-adrenergic receptors. Nifedipine also blocks the action of the
aqueous extract. CONCLUSION: The alcoholic extract exhibited a
cardiotonic effect and the aqueous extract produced a β-adrenergic
effect. |
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ISSN: | 0253-7613 1998-3751 |