Tan, Kae Yi and Shamsuddin, Nor Naimah and Tan, Choo Hock (2022) Sharp-nosed Pit Viper (Deinagkistrodon acutus) from Taiwan and China: A comparative study on venom toxicity and neutralization by two specific antivenoms across the Strait. Acta Tropica, 232. ISSN 0001-706X, DOI https://doi.org/10.1016/j.actatropica.2022.106495.
Full text not available from this repository.Abstract
In East Asia, the Sharp-nosed Pit Viper (Deinagkistrodon acutus) is a medically important venomous snake in Taiwan and China, two geographical areas long separated by the Taiwan Strait. Yet, snake venom variation is little known between specimens found across the Strait. This study thus investigated the intra-species variation of D. acutus venoms from Taiwan (Da-Taiwan) and China (Da-China) in their profiles of gel electrophoresis, toxicity, immunoreactivity and neutralization effect by antivenom. Da-China venom exhibited higher procoagulant, hemorrhagic and lethal activities than Da-Taiwan venom, presumably attributed to the higher abundance of moderate-to-high molecular weight toxins (procoagulants and hemorrhagins) in the venom. The mono-specific antivenoms produced in Taiwan (DaMAV-Taiwan) and China (DaMAV-China) were immunoreactive toward both venoms, and were able to neutralize the venom toxicity to different extents. DaMAV-Taiwan was more efficacious in neutralizing the venom procoagulant and lethal effects, while DaMAV-China was more potent against hemorrhagic effect. The discrepancy in efficacy between the two antivenoms could be due to varying proportions of neutralizing antibodies in the respective products, influenced by techniques of antibody raising and purification. Further study is warranted to elucidate variation in the proteome and antigenicity of D. acutus venom between snakes from Taiwan and China.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education, Government of Malaysia [Grant No: FRGS/1/2019/SKK08/UM/02/19], Snakes of Taiwan? |
| Uncontrolled Keywords: | Hundred-pace Viper; Five-pacer Viper; Chinese Moccasin; Immunoreactivity |
| Subjects: | R Medicine > R Medicine (General) R Medicine > RM Therapeutics. Pharmacology |
| Divisions: | Faculty of Medicine Faculty of Medicine > Medicine Department |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 17 Oct 2023 02:52 |
| Last Modified: | 17 Oct 2023 02:52 |
| URI: | http://eprints.um.edu.my/id/eprint/42203 |
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