Intrahippocampal infusion of crotamine isolated from Crotalus durissus terrificus alters plasma and brain biochemical parameters
Rithiele Gonçalves, Liane S. Vargas, Marcus V. S. Lara, Angélica Güllich, Vanusa Mandredini, Luis Ponce-Soto, Sergio Marangoni, Cháriston Dal Belo, Pâmela B. Mello-Carpes
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Crotamine is one of the main constituents of the venom of the South American rattlesnake Crotalus durissus terrificus. Here we sought to investigate the inflammatory and toxicological effects induced by the intrahippocampal administration of crotamine isolated from Crotalus whole venom. Adult rats...
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Crotamine is one of the main constituents of the venom of the South American rattlesnake Crotalus durissus terrificus. Here we sought to investigate the inflammatory and toxicological effects induced by the intrahippocampal administration of crotamine isolated from Crotalus whole venom. Adult rats received an intrahippocampal infusion of crotamine or vehicle and were euthanized 24 h or 21 days after infusion. Plasma and brain tissue were collected for biochemical analysis. Complete blood count, creatinine, urea, glutamic oxaloacetic transaminase (GOT), glutamic pyruvic transaminase (GPT), creatine-kinase (CK), creatine kinase-muscle B (CK-MB) and oxidative parameters (assessed by DNA damage and micronucleus frequency in leukocytes, lipid peroxidation and protein carbonyls in plasma and brain) were quantified. Unpaired and paired t-tests were used for comparisons between saline and crotamine groups, and within groups (24 h vs. 21 days), respectively. After 24 h crotamine infusion promoted an increase of urea, GOT, GPT, CK, and platelets values (p ≤ 0.01), while red blood cells, hematocrit and leukocytes values decreased (p ≤ 0.01). Additionally, 21 days after infusion crotamine group showed increased creatinine, leukocytes, TBARS (plasma and brain), carbonyl (plasma and brain) and micronucleus compared to the saline-group (p ≤ 0.01). Our findings show that crotamine infusion alter hematological parameters and cardiac markers, as well as oxidative parameters, not only in the brain, but also in the blood, indicating a systemic pro-inflammatory and toxicological activity. A further scientific attempt in terms of preserving the beneficial activity over toxicity is required
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COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES
FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DO RIO GRANDE DO SUL - FAPERGS
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DOI: https://doi.org/10.3390/ijerph111111438
Texto completo: https://www.mdpi.com/1660-4601/11/11/11438
Intrahippocampal infusion of crotamine isolated from Crotalus durissus terrificus alters plasma and brain biochemical parameters
Rithiele Gonçalves, Liane S. Vargas, Marcus V. S. Lara, Angélica Güllich, Vanusa Mandredini, Luis Ponce-Soto, Sergio Marangoni, Cháriston Dal Belo, Pâmela B. Mello-Carpes
Intrahippocampal infusion of crotamine isolated from Crotalus durissus terrificus alters plasma and brain biochemical parameters
Rithiele Gonçalves, Liane S. Vargas, Marcus V. S. Lara, Angélica Güllich, Vanusa Mandredini, Luis Ponce-Soto, Sergio Marangoni, Cháriston Dal Belo, Pâmela B. Mello-Carpes
Fontes
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International journal of environmental research and public health Vol. 11, no. 11 (Nov., 2014), p. 11438-11449 |