Acute gonadal toxicity induced by Bothrops atrox venom in mice

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  Acute gonadal toxicity induced by Bothrops atrox venom in mice Abstract Bothrops atrox is responsible for most snakebite incidents in the Amazon region. Its venom is recognized for causing significant tissue damage and systemic effects. However, its effect on reproductive organs remains poorly explored. This study aimed to investigate the acute effects of B. atrox venom on testes and ovaries of adult mice. Male and female mice were exposed to B. atrox venom (½ LD 50 ) via four administration routes subcutaneous (SC), intramuscular (IM), intravenous (IV), and intraperitoneal (IP), followed by comprehensive assessment of gonadal histology, sperm function, oxidative stress biomarkers, antioxidant enzyme activities, and mRNA expression of inflammatory and apoptotic markers. Following B. atrox venom exposure, ovarian histological architecture remained preserved across all routes, whereas testicular tissue exhibited route-dependent injury ranging from moderate luminal apoptosis aft...

New data on spider wasps of the subgenus Ammosphex Wilcke, 1942 (Hymenoptera, Pompilidae, Arachnospila Kincaid, 1900) from Western Siberia, Russia

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New data on spider wasps of the subgenus Ammosphex Wilcke, 1942 (Hymenoptera, Pompilidae, Arachnospila Kincaid, 1900) from Western Siberia, Russia

Abstract

The new species, Arachnospila (Ammosphex) altaica Loktionov, sp. nov., is described and illustrated from the Altai Republic, Western Siberia, Russia based on male specimens. The new species belongs to A. (Am.) abnormis species-group, whose males have a tuft of long bristles on hypopygium ventrally. The male of the new species is clearly distinguished from congeners by the unique shape of the hypopygium and the position of the bristles on it. Seven species of the subgenus Ammosphex Wilcke, 1942 from the genus Arachnospila Kincaid, 1900 are newly recorded from Western Siberia. The new species and new regional records raise the number of species known from Western Siberia to 58, and the total number of spider wasps in Russia to 251.


Loktionov, V. M., & Proshchalykin, M. Yu. (n.d.-b). New data on spider wasps of the subgenus Ammosphex Wilcke, 1942 (Hymenoptera, Pompilidae, Arachnospila Kincaid, 1900) from Western Siberia, Russia. Zootaxa. https://mapress.com/zt/article/view/zootaxa.5453.1.6