AaTs-1, a Tetrapeptide from Scorpion Venom Mitigates Demyelination and Neuroinflammation in a Cuprizone-Induced Model of Multiple Sclerosis

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  AaTs-1, a Tetrapeptide from Scorpion Venom Mitigates Demyelination and Neuroinflammation in a Cuprizone-Induced Model of Multiple Sclerosis Abstract Purpose This study focuses on the evaluation of the therapeutic potential of Tetrascorpin-1 (AaTs-1), a tetrapeptide isolated from Androctonus australis hector venom, proposed as a putative formyl peptide receptor 2 (FPR2) antagonist, in a cuprizone-induced murine model of Multiple sclerosis (MS), a chronic autoimmune and inflammatory disease of the central nervous system. Methods Acute demyelination was induced in mice by administering cuprizone (0.2% w/w in the diet) for six weeks. During the sixth week of cuprizone intake, demyelinated mice received intranasal administration of AaTs-1 at a dose of 50–100 µg/kg for five consecutive days, with 24-hour intervals between treatments. Results Behavioral assessments, immunological assays, and histological analyses revealed that AaTs-1 improved body weight, reduced behavioral impairments...

Rediscovery of the enigmatic holotype of Buthus barbouri Werner, 1932 (Scorpiones: Buthidae), with a new synonymy

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Rediscovery of the enigmatic holotype of Buthus barbouri Werner, 1932 (Scorpiones: Buthidae), with a new synonymy

Mousaid, M., Flores, Z., Rivera, A., Lansari, A. & Bouazza, A. (2026) Rediscovery of the enigmatic holotype of Buthus barbouri Werner, 1932 (Scorpiones: Buthidae), with a new synonymy. Zootaxa, 5768 (4), 597–600. https://doi.org/10.11646/zootaxa.5768.4.12