Abstract Title:

Preventive and curative effect of Pistacia lentiscus oil in experimental colitis.

Abstract Source:

Biomed Pharmacother. 2016 Jul 23 ;83:577-583. Epub 2016 Jul 23. PMID: 27459113

Abstract Author(s):

Mustafa S Naouar, Lilia Zouiten Mekki, Lamia Charfi, Jalel Boubaker, Azza Filali

Article Affiliation:

Mustafa S Naouar


AIM: to investigate the anti-inflammatory effect of the Pistacia lentiscus oil in experimental colitis model.

MATERIALS AND METHODS: Colitis was induced in male rats by instillation of 2,4,6-trinitrobenzenesulfonic acid (TNBS) in all groups. The experimental groups consisted of: 5 rats received Lentisc oil 2months before colitis induction (preventive group), 5 rats received the oil on the day of colitis induction (curative group) and 5 control rats. Lentisc oil was extracted from the ripe fruit of the plant by the cold press method and was analyzed by spectro-chromatography. Lentisc oil has been inserted with a standard diet at the dose of 30mg oil/100g of food/rat.

RESULTS: The lentisc oil sample is composed mainly by Oleic acid (47.96%), Palmitic acid (27.94%) and Linoleic acid (20.22%).There was a significant difference between control rats and treated rats with lentisc oil concerned body mass (p=0.009), bleeding index (p=0.005 and p=0.018) and diarrhea (p=0.012). Histological examination revealed a clear difference between the control and preventive groups with disappearance of erosion, decreased of cryptitis, irregular crypts and crypt loss in the preventive group. Curative group showed a significant decrease of ulceration, hyperplasia, cryptitis, irregular crypts and crypt loss compared to the control group. There was an attenuation of inflammation in the preventive group compared to the curative group without statistically significant.

CONCLUSION: Lentisc oil administration could provide a protective effect on intestinal inflammation in colitis rats induced by TNBS mainly when it is administered at a young age in preventive mode. This beneficial effect would involve a modification of arachidonic acid metabolism.

Study Type : Animal Study

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