Distinct pathophysiological mechanisms of Heterometrus laoticus and Lychas mucronatus scorpion venoms on cardiovascular and renal functions

Posted by
  Distinct pathophysiological mechanisms of Heterometrus laoticus and Lychas mucronatus scorpion venoms on cardiovascular and renal functions Abstract Background:    Heterometrus laoticus and Lychas mucronatus are widely distributed in Southeast Asia, yet their pathophysiological effects of both venoms remain poorly characterized due to low human fatality rates. This study compared their venom compositions and acute cardiovascular and renal effects. Methods:   Anesthetized male New Zealand White rabbits were monitored for blood pressure (BP), heart rate (HR), and renal clearance following intravenous administration of crude venom (0.5 mg/kg). Venom components were identified via LC-MS/MS, and hematological/biochemical parameters were assessed. Results:    H. laoticus venom induced a rapid, transient hypotension ( p < 0.05), followed by a mild, prolonged hypotensive phase (up to 120 min). Conversely, L. mucronatus venom elicited a biphasic response: ...

Rhinella alata (Anura: Bufonidae), Tityus jaimei and Tityus festae (Scorpiones: Buthidae) as new carriers of phoretic mites Archegozetes magnus (Oribatida: Trhypochthoniidae) in Panama

Posted by

 


Rhinella alata (Anura: Bufonidae), Tityus jaimei and Tityus festae (Scorpiones: Buthidae) as new carriers of phoretic mites Archegozetes magnus (Oribatida: Trhypochthoniidae) in Panama

Abstract

In this paper, we report the mite, Archegozetes magnus immatures and females, in non-parasitic interactions with Bishop's Toad, Rhinella alata (Anura: Bufonidae), and the Buthidae scorpions Tityus jaimei and Tityus festae. The reports in both species of scorpions represent news phoretic interactions. Possible behavior is discussed.

Miranda, Roberto J., ángel Sosa-bartuano, Lillian Dominguez, Samuel Sucre, Macario González-pinzón, and Sergio Bermudez Castillero. “Rhinella Alata (Anura: Bufonidae), Tityus Jaimei and Tityus Festae (Scorpiones: Buthidae) As New Carriers of Phoretic Mites Archegozetes Magnus (Oribatida: Trhypochthoniidae) in Panama”. Acarological Studies 7, no. 1 (January 2025): 5-11. https://doi.org/10.47121/acarolstud.1551808