Title
Biochemical characterization of Bothrops roedingeri Mertens, 1942 snake venom and its edematogenic, hemorrhagic, and myotoxic activities
Other title
Caracterización bioquímica del veneno de la serpiente Bothrops roedingeri Mertens, 1942, y sus actividades edematógena, hemorrágica y miotóxica
Date Issued
01 January 2020
Access level
open access
Resource Type
journal article
Author(s)
Nina-Cueva O.
Olazábal-Chambilla D.
Quispe-Arpasi J.
Alzamora-Sánchez A.
Gomes-Heleno M.
Publisher(s)
Instituto Nacional de Salud
Abstract
Introduction: Snakebite envenoming is considered by the World Health Organization (WHO) as a neglected tropical disease. Currently, Bothrops snake venoms are being studied intensively, but there is little knowledge about Bothrops roedingeri venom. Objectives: To biochemically characterize B. roedingeri total venom and evaluate its myotoxic, edematogenic, and hemorrhagic activity. Materials and methods: We characterized B. roedingeri venom enzymatic activity by determining the phospholipase A2 and the proteolytic and fibrinogenolytic action using SDS-PAGE electrophoresis while we characterized its venom toxicity by determining the minimum hemorrhagic dose, the minimum edema dose, and the local and systemic myotoxic effects. Results: Bothrops roedingeri venom showed a PLA2 activity of 3.45 ± 0.11 nmoles/min, proteolytic activity of 0.145 ± 0.009 nmoles/min, and a fibrinogen coagulation index of 6.67 ± 1.33 seconds. On the other hand, it produced an minimum hemorrhagic dose of 24.5 jg, an minimum edema dose of 15.6 jg, and a pronounced local myotoxic effect evidenced by the elevation of plasma creatine kinase levels after intramuscular inoculation. The venom showed no systemic myotoxicity. Conclusions: Bothrops roedingeri venom has local hemorrhagic, edematogenic, and myotoxic activity. Enzymatically, it has high PLA2 activity, which would be responsible for the myotoxic and edematogenic effects. It also has proteolytic activity, which could affect coagulation given its ability to degrade fibrinogen, and it causes bleeding through the metalloproteases.
Start page
682
End page
683
Volume
40
Issue
4
Language
English
OCDE Knowledge area
Toxicología
Scopus EID
2-s2.0-85097310976
PubMed ID
Source
Biomedica
ISSN of the container
01204157
Sources of information: Directorio de Producción Científica Scopus