Abstract
A new steroidal derivative, urs Stigmast-4, 20 (21), 23-trien-3-one and other four compounds were isolated from the leaves of Bryophyllum pinnatum. The structure of this new steroid was elucidated and established by standard spectroscopic methods. Carrageenan induced paw edema model was used for anti-inflammatory and acetic acid induced model used for analgesic activity. This new steroidal compound was found to be active in reducing inflammation (% inhibition 87.29 and 84.45 respectively) when compared with diclofenac. Further, it showed 75.72% protection in analgesic activity in acetic acid induced writhing test in mice. In conclusion the % inhibition against carrageenan induced rat paw edema and % protection against acetic acid induced writhings showed by new compound revealed that the anti-inflammatory and analgesic activity of aqueous extract B. pinnatum are mainly due to the presence of this steroidal compound.
Crown Copyright © 2012. Published by Elsevier B.V. All rights reserved.
MeSH terms
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Acetic Acid
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Analgesics / isolation & purification
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Analgesics / pharmacology
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Analgesics / therapeutic use*
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Animals
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Anti-Inflammatory Agents / isolation & purification
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Anti-Inflammatory Agents / pharmacology
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Anti-Inflammatory Agents / therapeutic use*
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Behavior, Animal / drug effects
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Carrageenan
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Diclofenac / therapeutic use
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Disease Models, Animal
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Diterpenes / chemistry
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Diterpenes / isolation & purification*
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Diterpenes / pharmacology
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Edema / prevention & control
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Female
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Flavones / chemistry
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Flavones / isolation & purification*
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Flavones / pharmacology
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Inflammation / chemically induced
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Inflammation / drug therapy*
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Kalanchoe / chemistry*
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Male
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Mice
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Mice, Inbred Strains
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Molecular Structure
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Pain / chemically induced
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Pain / drug therapy*
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Phytotherapy*
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Plant Extracts / chemistry
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Plant Extracts / pharmacology
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Plant Extracts / therapeutic use
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Rats
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Rats, Wistar
Substances
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2,17-dihydroxylabda-7,13-dien-15-oic acid
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Analgesics
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Anti-Inflammatory Agents
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Diterpenes
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Flavones
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Plant Extracts
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Diclofenac
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Carrageenan
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Acetic Acid