Anti-inflammatory and gastroprotective potential of leaf essential oil of Cinnamomum glanduliferum in ethanol-induced rat experimental gastritis. (1st January 2017)

• Record Type: Journal Article
• Authors: Azab, Samar S.; Abdel Jaleel, Gehad A.; Eldahshan, Omayma A.
• Is Part Of: Pharmaceutical biology. Volume 55:Number 1(2017)
• Page Start: 1654
• Page End: 1661
• Publication Date: 2017-01-01
• Subjects: GC-MS -- inflammation -- PGE2 -- lipid peroxidation -- oxidative stress; Pharmacognosy -- Periodicals; Materia medica, Vegetable -- Periodicals; 615.321
• DOI: 10.1080/13880209.2017.1314512
• Languages: English
• ISSNs: 1388-0209

Abstract

Abstract: Context: Nothing could be found in the literature concerning Cinnamomum glanduliferum (Wall) Meissn (Lauraceae) bark ( CG) in Egypt. Objective: To investigate CG volatile oil chemically and its anti-inflammatory and gastroprotective effects. Materials and methods: Essential oils were investigated by GC-MS. Leaves oil was assessed at doses of 250, 500 and 1000 mg/kg for its anti-inflammatory effect against carrageenan-induced rat oedema model. Serum inflammation markers were measured. The gastro-protective effect of the same doses of the volatile oil was also tested in ethanol-induced non-ulcerative gastritis model in rats. Stomach oxidative stress markers were examined following 1 h after intragastric ethanol administration. Results: Twenty-five and 20 compounds were identified from leaf and branch oils, respectively (98.85 and 99.13%). The major ones were: eucalyptol (59.44%; 55.74%), sabinene (14.99%; 7.12%), α -terpineol (6.44%; 9.81%), α -pinene (5.27%; 4.71%). Following 4 h of treatment leaves volatile oil at doses of 250, 500 and 1000 mg/kg significantly reduced paw volume to 94, 82 and 69%, respectively. The same doses significantly reduced COX-2 activity to 73.8, 50.7 and 21.4 nmol/min/mL, respectively. A significant reduction of PGE2 concentration was observed (2.95 ± 0.2, 2.45 ± 0.15 and 1.75 ± 0.015 pg/mL). CG oil exhibited a significant modulatory effect on ethanol-induced gastritis in rats as the level of NO reduced to 32, 37 and 41 μM nitrate/g and also a significant inhibition of lipid peroxidation was observed via reduction of MDA concentration (1.15, 1.11 and 1.04 nmol/g). Conclusion: CG volatile oil exhibited an anti-inflammatory effect and protected against ethanol-induced non-ulcerative gastritis.