In vitro, in vivo and in silico evaluation of analgesic, anti-inflammatory, and anti-pyretic activity of salicylate rich fraction from Gaultheria trichophylla Royle (Ericaceae)

被引:8
作者
Alam, Fiaz [1 ]
Hanif, Muhammad [1 ]
Rahman, Asad ur [1 ]
Ali, Sayyad [1 ]
Jan, Saeed [2 ]
机构
[1] Comsats Univ Islamabad, Dept Pharm, Abbottabad Campus, Abbottabad, KP, Pakistan
[2] Univ Swabi, Dept Pharm, Swabi, KP, Pakistan
关键词
Gaultheria; Inflammation; Analgesic; Cyclooxygenase; Lipoxygenase; Molecular docking; ANTIOXIDANT; YUNNANENSIS; EXTRACT;
D O I
10.1016/j.jep.2022.115828
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Ethnopharmacological relevance: Medicinal properties of Gaultheria have been used in traditional medicine to treat pain and inflammation.Aim of the study: Hence, the purpose of this study was to evaluate the analgesic, antipyretic, and anti-inflammatory properties of Gaultheria trichophylla Royle extract and salicylate-rich fraction in vivo, in vitro, and in silico.Materials and methods: In vivo analgesic, antipyretic, and anti-inflammatory of extract and a salicylate-rich fraction (at doses of 100, 200, 300, and 150 mg/kg) were assessed using healthy albino mice employing ace-tic acid-induced writhing, tail immersion test, carrageenan-induced inflammation, and croton oil-induced edema. For in vitro testing of extracts COX and LOX enzyme inhibition assays were used. Molecular docking studies were conducted for in silico testing of the inhibitory activity of the dominant compound Gaultherin against COX and LOX.Results: G-EXT 200 and 300 and G-SAL 150 mg/kg reduced pyrexia significantly (P < 0.05 and P < 0.01). G-EXT-200, 300, and G-SAL 150 reduce the writing to a significant level (p > 0.05, p < 0.01). G-EXT 200 and 300 and G -SAL 150 mg/kg doses the analgesic effect was significant (p > 0.05, p > 0.01) and was comparable to tramadol. G-EXT 100 200, 300 mg/kg showed 43.8%, 47.94% and 56% respectively. G-SAL 150 mg, rich in salicylates, showed maximum inhibition of 65.75% next to standard drug diclofenac with 76.7% inhibition. G-EXT 100 and 200 mg/kg dose showed significant (p < 0.05) reduction in ear edema. With 300 mg/kg dose the effect was more (61.89%, p < 0.01). The salicylate-rich fraction G-SAL and Celecoxib showed an almost similar effect (p < 0.01). Significance inhibition was shown in the COX-2 test (G-EXT 39.70 and G-SAL 77.20 IC50 mu g/ml) and in the 5 -LOX test (G-EXT 28.3 and G-SAL 39.70 IC50 mu g/ml). The preliminary in silico results suggest that the investi-gated compound showed excellent inhibitory activity against COX and LOX enzymes as evident from the free binding energy. Molecular docking revealed that Gaultherin binds well in the COX and LOX enzyme catalytic region.Conclusion: The extract and salicylate-rich fraction obtained from G. trichophylla showed significant analgesic, anti-inflammatory, and antipyretic effects in vivo, in vitro, and in silico assays that support its use in traditional medicine.
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页数:7
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