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| Pereira,IC; Barbosa,AM; Salvador,MJ; Soares,AM; Ribeiro,W; Cogo,JC; Zamuner,SR. |
| This article reports the anti-inflammatory effect of Blutaparon portulacoides (B. portulacoides), specifically the ethanolic extract of its aerial parts, on the edema formation and leukocyte influx caused by Bothrops jararacussu (B. jararacussu) snake venom and Bothropstoxin-I and II (BthTX-I and II) isolated from this venom as an alternative treatment for Bothrops snakebites. The anti-inflammatory effect of B. portulacoides ethanolic extract was compared with an animal group pretreated with dexamethasone. B. portulacoides ethanolic extract significantly inhibited paw edema induced by B. jararacussu venom and by BthTX-I and II. Also, results demonstrated that the extract caused a reduction of the leukocyte influx induced by BthTX-I. However, the extract... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bothrops jararacussu; Myotoxins; Inflammation; Edema; Blutaparon portulacoides. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000300013 |
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| Barbosa,AM; Villaverde,AB; Guimarães-Sousa,L; Soares,AM; Zamuner,SF; Cogo,JC; Zamuner,SR. |
| The prominent myotoxic effects induced by Bothrops jararacussu crude venom are due, in part, to its polycationic myotoxins, BthTX-I and BthTX-II. Both myotoxins have a phospholipase A2 structure: BthTX-II is an active enzyme Asp-49 PLA2, while BthTX-I is a Lys-49 PLA2 devoid of enzymatic activity. In this study, the effect of low-level laser therapy (LLLT), 685 nm laser at a dose of 4.2 J/cm2 on edema formation, leukocyte influx and myonecrosis caused by BthTX-I and BthTX-II, isolated from Bothrops jararacussu snake venom, was analyzed. BthTX-I and BthTX-II caused a significant edema formation, a prominent leukocyte infiltrate composed predominantly by neutrophils and myonecrosis in envenomed gastrocnemius muscle. LLLT significantly reduced the edema... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bothrops jararacussu; Myotoxins; Inflammation; Myonecrosis; Low-level laser therapy. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992010000300014 |
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| França,RF; Vieira,RP; Ferrari,EF; Souza,RA; Osorio,RAL; Prianti-Jr,ACG; Hyslop,S; Zamuner,SR; Cogo,JC; Ribeiro,W. |
| Venom of the South American rattlesnake, Crotalus durissus terrificus (Cdt), presents myotoxic and neurotoxic outcomes, but reports on its effects on the liver are scarce. This study examined the hepatotoxicity resulting from Cdt venom administration (100, 200 and 300 µg/kg) in male Wistar rats. Animals were studies at 3, 6, 9 and 12 hours after venom injection. The hepatotoxicity was assessed through serum levels of aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (AP), gamma glutamyl transferase (GGT), bilirrubin and also by histopathological evaluation. All the different concentrations of Cdt venom resulted in increased levels of hepatic enzymes, when compared with the control group, except for the 100 µg/kg dose,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crotalus durissus terrificus; Hepatotoxicity; Histology; AST; ALT; Rattlesnake; Liver enzymes; Venom. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000100007 |
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