Interspecific and Intraspecific Variation in Venom Proteomics, Composition, and Antivenom Efficacy of Thai Cobras (Naja spp.): Highlighting the Distinct Profile of the Newly Identified Naja fuxi

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  Interspecific and Intraspecific Variation in Venom Proteomics, Composition, and Antivenom Efficacy of Thai Cobras (Naja spp.): Highlighting the Distinct Profile of the Newly Identified Naja fuxi Abstract Cobras ( Naja  spp.) account for a significant number of snakebite incidents in Thailand. The monocled cobra ( Naja kaouthia ) has historically been considered the only non-spitting species, but recent evidence indicates population-level diversification in central and southern regions. Additionally, a newly described non-spitting species, the mountain cobra ( Naja fuxi ), has been identified in mountainous areas. This study investigates venom variation among Thai  Naja  species and populations and evaluates the efficacy of monovalent and polyvalent Thai antivenoms. Proteomic analyses revealed that three-finger toxins dominate  Naja  venoms, whereas  N. fuxi  exhibits a distinct profile enriched in snake venom metalloproteinases and cysteine-rich...

Geographical Distribution of Scorpions (Arachnida: Scorpiones) in Southern Regions of Kerman Province, Iran

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Geographical Distribution of Scorpions (Arachnida: Scorpiones) in Southern Regions of Kerman Province, Iran

Abstract

Scorpion stings are the major public health problem related to arthropods in tropical and subtropical areas of Iran. The study aimed to determine the species diversity and geographical distribution of scorpions in southern regions of Kerman province, Iran. The descriptive cross-sectional study was carried out from March 2019 to November 2021 in the south of Kerman province. The specimens were collected by rock rolling method using long forceps during the day and UV light during the night. The specimens were put in containers containing 80% ethanol, transported to the laboratory, identified using valid taxonomic keys, and studied their sexes. A total of 126 scorpions were collected from 2 families, 7 genera, and 10 species including Hemiscorpius acanthocercus (2.2%), H. enischnochela (0.4%), Androctonus crassicauda (56.1%), Mesobuthus kirmanensis (29%), Odontobuthus baluchicus (3.5%), Hottentotta navidpouri (2.2%), Ho. sistanensis (2.2%), Orthochirus hormozganensis (1.3%), O. kucerai (0.9%) and Sassanidotus gracilis (1.3%). Mesobuthus kirmanensis were reported as dominant species. H. navidpouri, H. sistanensis, O. baluchicus, and O. hormozganensis are reported for the first time from Kerman province. Androctonus crassicauda, H. acanthocercus and H. enischnochela are known as dangerous species and could enhance the potential risk of scorpion stings deaths, especially in children. The fauna and geographical distribution of scorpions in the southeast of Iran showed the presence of suitable habitats for scorpions and can be a warning to the health care system. Identification of dangerous species and their range of distribution can be comprehensive and valuable guides to reducing the exposure of scorpions in high-risk areas.

Adeli-Sardou, M., Shahi, M., Dehghan, H. et al. Geographical Distribution of Scorpions (Arachnida: Scorpiones) in Southern Regions of Kerman Province, Iran. Biol Bull Russ Acad Sci (2024). https://doi.org/10.1134/S1062359023604834