| RESEARCH ARTICLE
|Year : 2017 | Volume
| Issue : 1 | Page : 42-48
Anticholinergic, antihistaminic, and antiserotonergic activity of n-hexane extract of Zanthoxylum alatum seeds on isolated tissue preparations: An ex vivo study
Beenita Saikia, Chandana Choudhury Barua, Prakash Haloi, Pompy Patowary
Department of Pharmacology and Toxicology, College of Veterinary Science, Assam Agricultural University, Guwahati, Assam, India
Objectives: The aim of this study was to evaluate anticholinergic, antihistaminic, and antiserotonergic activity of the n-hexane extract of the seeds of Zanthoxylum alatum (ZAHE) on isolated ileum of rat and guinea pig and fundus of rat.
Materials and Methods: ZAHE was prepared using soxhlet extraction and cumulative concentration response curves were constructed using various doses on the tissues for acetylcholine (ACh), 5-hydroxytryptamine (5-HT), and histamine with or without n-hexane extract. Atropine, ketanserin, and pheniramine maleate were used as antagonists for ACh, serotonin, and histamine, respectively.
Results: ZAHE-induced concentration-dependent inhibition of isolated ileum and fundus in rat and ileum of guinea pig. The half maximal effective concentration (EC50) of ACh in the presence of atropine (10−6 M; P < 0.05) and ZAHE (1000 μg/ml; P < 0.01) was significantly higher than EC50of ACh alone. The EC50of 5-HT in the presence of ketanserin (10−5 M; P < 0.01) and ZAHE (1000 μg/ml; P < 0.05) was higher than EC50of 5-HT alone. Similarly, the EC50of histamine in the presence of pheniramine maleate (10−6 M; P < 0.01) and ZAHE (300 μg/ml; P < 0.01 and 1000 μg/ml; P < 0.05) was also significantly higher than EC50of histamine alone.
Conclusion: From the study, it was observed that ZAHE shows significant anticholinergic, antiserotonergic, and antihistaminic activity. The study provides sufficient evidence that the seeds can be used in gastric disorders, cough, chest infection, etc., as per folklore claims.
Chandana Choudhury Barua
Department of Pharmacology and Toxicology, College of Veterinary Science, Assam Agricultural University, Guwahati, Assam
Source of Support: None, Conflict of Interest: None
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