NITRIC OXIDE INHIBITORY ACTIVITY OF (LOGANIACEAE) LEAF EXTRACTS AND FRACTIONS.

TitleNITRIC OXIDE INHIBITORY ACTIVITY OF (LOGANIACEAE) LEAF EXTRACTS AND FRACTIONS.
Publication TypeJournal Article
Year of Publication2016
AuthorsAi I, Jp D, Sa A, Mm S, Jn E
JournalAfr J Tradit Complement Altern Med
Volume13
Issue6
Pagination22-26
Date Published2016
ISSN2505-0044
KeywordsAnti-Inflammatory Agents, Chemical Fractionation, Humans, Nitric Oxide, Plant Extracts, Plant Leaves, Strychnos, U937 Cells
Abstract

BACKGROUND: The study was aimed at determining the anti-inflammatory activity of fractions and extracts obtained from leaves on a mediator of inflammation nitric oxide (NO).

MATERIALS AND METHODS: Leaves were extracted with acetone and separated into fractions with different polarities by solvent-solvent fractionation. The Griess assay was used to determine the nitric oxide (NO) inhibitory activity. Cellular toxicity was determined by "using the MTT reduction assay".

RESULTS: With the exception of the ethyl acetate fraction which had an IC >750 μg/mL, all extracts and fractions had significant nitric oxide-inhibitory activity. The most active being the water fraction, chloroform fraction and the dichloromethane/methanol extracts with IC values of 88.43 μg/mL, 96.72 μg/mL and 115.62 μg/mL, respectively. The extracts and fractions had low cytotoxicity on macrophage U937 cell lines.

CONCLUSION: Extracts and fractions of leaves may be promising sources of natural anti-inflammatory agents. Findings obtained from this study showed that leaves possess promising anti-inflammatory action and could be used in the treatment of inflammation-related conditions.

DOI10.21010/ajtcam.v13i6.5
Alternate JournalAfr J Tradit Complement Altern Med
PubMed ID28480356
PubMed Central IDPMC5412197

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