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Abstract

Currently, medically significant scorpion species belong to the Buthidae family and are represented by the genera Androctonus, Buthus, Mesobuthus, Hottentotta, Parabuthus, Tityus, Centruroides, Leiurus. Although Leiurus was originally considered a monotypic genus, four additional species have since been described. Leiurus abdullahbayrami (previously identified as L. quinquestriatus in Turkey) was classified as a new Leiurus species. This is the first report conducted on the lethality and biologic effects of L. abdullahbayrami scorpion venom in mice. In this study, the electrophoretic protein pattern of its venom was also determined. Two protein bands with molecular masses of 4 and 6 kDa were more strongly detected than other protein bands in the venom sample. Electrophoresis showed that L. abdullahbayrami scorpion venom possesses both short-and long-chain neurotoxins. The median lethal dose of this venom was found to be 0.19 mg/kg by subcutaneous (SC) injection in mice. Animals experimentally envenomed with L. abdullahbayrami venom exhibited hyperexcitability, agitation, aggressive behavior, squeaking and fighting, tachypnea, weakness, convulsions, and death due to cardiac and respiratory failure. In further studies, the potency of antivenom should be investigated in relation to the scorpion venom. Molecular and pharmacological studies are also required to identify and characterize L. abdullahbayrami scorpion venom.

Comparative analysis of peptides and proteins in two congeneric (Leiurus abdullahbayrami; Buthidae ) scorpion venoms by MALDI-TOFMS

“…Bu zamana kadar L. abdullahbayrami akrep venomunun tanımlanmasına yönelik farklı yöntemler kullanılarak birkaç çalışma yapılmıştır. Örneğin, Ozkan ve arkadaşları, L. abdullahbayrami akrep venomunun SDS-PAGE jel elektroforez yöntemi ile analizini yaparak 4 ve 6 kDa 'da olan iki peptit bandı olduğunu tespit etmiştir [19]. Ulutaş tarafından ham L. abdullahbayrami venomunun Yüksek Performans Sıvı Kromatografisi (HPLC) ile kromotografik olarak ayrımı gerçekleştirildikten sonra kütle spektrometresi ile 6809.55 Da kütle değerindeki bir peptit saflaştırmıştır.…”