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Bioassay-guided fractionation and identification of wound healing active compound from Pistacia vera L. hull extract.

Abstract：

ETHNOPHARMACOLOGICAL RELEVANCE:Pistachio hull has traditionally been used to treat peptic ulcer, hemorrhoids, oral and cutaneous wounds. AIM OF THE STUDY:On the basis of its traditional uses and previous pharmacological reports, a bioassay guided fractionation procedures on pistachio (Pistacia vera L.) hulls was performed to define the fractions and bioactive compound that are responsible for wound healing activity of hulls. MATERIAL AND METHODS:A bioassay-guided fractionation of the total extract (MeOH 80%) of Pistacia vera L. hulls was carried out to evaluate wound healing activity by scratch assay on NIH/3T3 murine fibroblast cells. A combination of solvent-solvent partitioning, column chromatography, preparative thin layer chromatography and crystallization were used to obtain fractions/sub-fractions and pure compound. The wound healing potential of isolated compound was examined by fibroblasts migration and proliferation using scratch assay and CFSC dilution assay, respectively. In addition, we evaluated the gene expression of some inflammatory markers which are involved in healing process using Real Time PCR. Chemical structure of active compound was elucidated by spectrometric methods. RESULTS:Due to the higher wound healing activity of CHCl3 fraction from P. vera hulls, it was fractionated by successive chromatographic techniques to yield the active compound. 3-Epimasticadienolic acid was isolated and crystallized as a white powder. This active compound (200 μg/ml) significantly increased the fibroblast proliferation and migration, resulting in reduction of the scratch area about 45%. It showed a strong inhibitory effect on gene expression of IL-6 and TNF-α, and a stimulation effect on NF-κB gene expression at the same dose. CONCLUSION:The present study supported the traditional uses of P. vera hulls for wound-healing and 3-epimasticadienolic acid showed significantly potent on wound repair.

journal_name

J Ethnopharmacol

journal_title

Journal of ethnopharmacology

authors

Sarkhail P,Navidpour L,Rahimifard M,Hosseini NM,Souri E

doi

10.1016/j.jep.2019.112335

subject

Has Abstract

pub_date

2020-02-10 00:00:00

pages

112335

eissn

0378-8741

issn

1872-7573

pii

S0378-8741(19)30782-2

journal_volume

248

pub_type

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Bioassay-guided fractionation and identification of wound healing active compound from Pistacia vera L. hull extract.