New synonymy and combinations in Megamyrmaekion Reuss, 1834 (Araneae: Gnaphosidae)

  New synonymy and combinations in Megamyrmaekion Reuss, 1834 (Araneae: Gnaphosidae) Abstract The drassodine ground spider genus Megamyrmaekion Reuss, 1834 is recorded from Vietnam for the first time as a result of the following new combinations here proposed: M. luridum (O. Pickard-Cambridge, 1874) comb. nov., ex Drassodes Westring, 1851, and M. vickyae (Sherwood, Marusik, Sharp & Ashmole, 2023) comb. nov., ex Australoechemus Schmidt & Piepho, 1994. Detailed redescriptions and illustrations of the male and female of M. luridum comb. nov., from Vietnam are provided. Additionally, A. celer Schmidt & Piepho, 1994 syn. nov., is recognized as a junior synonym of M. caudatum Reuss, 1834. Drassus tarrhunensis Karsch, 1881 is removed from the synonymy of M. caudatum and provisionally transferred to the genus Megamyrmaekion as M. tarrhunense (Karsch, 1881) comb. nov. Truong, B.P., Le, T.T.S., Uyen, P.T.T., Phan, Q.T. & Hoang, Q.D. (2026) New synonymy and combinations in Meg...

Integrative Approaches in Snake Venom-Induced Tissue and Organ Toxicity: Ethnomedicinal and Phytochemical Strategies as Complementary Antivenom Therapies

 


Integrative Approaches in Snake Venom-Induced Tissue and Organ Toxicity: Ethnomedicinal and Phytochemical Strategies as Complementary Antivenom Therapies

Abstract

Objective

To review the pathophysiological mechanisms of snakebite envenomation, especially the roles of phospholipase A₂ (PLA₂) and snake venom metalloproteinases (SVMPs), and to assess the therapeutic potential of plant-derived phytochemicals as complementary options to traditional antivenom therapy.

Materials and Methods

A comprehensive literature review was performed to identify studies addressing snake venom–induced tissue and organ toxicity and the therapeutic potential of medicinal plants and phytochemicals. The databases PubMed, Scopus, Web of Science, ScienceDirect, and Google Scholar were systematically searched. Key search terms included combinations of snakebitesnake venomphospholipase A₂ (PLA₂)snake venom metalloproteinases (SVMPs)tissue damageoxidative stressmedicinal plantsphytochemicalsethnomedicine, and antivenom adjuvant therapy.

Results

Snake venom enzymes, including PLA₂ and SVMPs, cause severe local and systemic effects, such as neurotoxicity, myotoxicity, cytotoxicity, and hemotoxicity, leading to paralysis, haemorrhage, necrosis, and multi-organ failure. While conventional antivenoms effectively neutralize systemic toxicity, they offer limited protection against rapid local damage. Phytochemicals from medicinal plants show promising potential to counteract the effects of venom by neutralising reactive oxygen species, stabilising cellular membranes, and inhibiting venom enzymes. Evidence suggests that combining these compounds with antivenom improves therapeutic effectiveness, reduces the required antivenom dose, and decreases adverse reactions.

Conclusion

Plant-derived phytochemicals are promising adjunctive therapies for snakebite envenomation, targeting oxidative stress, inflammation, and venom enzyme activity. Combining phytomedicine with antivenom offers a synergistic, accessible, and cost-effective approach to improving outcomes, particularly in resource-limited areas. Further research is needed to confirm the safety, efficacy, and optimal delivery methods for clinical use.

Rajkapoor, B., Prabhakaran kala, P., Gandhi, S., Periasamy, S., & V, S. R. (2026). Integrative Approaches in Snake Venom-Induced Tissue and Organ Toxicity: Ethnomedicinal and Phytochemical Strategies as Complementary Antivenom Therapies. Pharmacological Research - Natural Products, 100597. https://doi.org/10.1016/j.prenap.2026.100597