Journal
TOXICON
Volume 51, Issue 7, Pages 1236-1244Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.toxicon.2008.02.007
Keywords
Bothrops jararacussu; antivenom; inflammation; therapy laser
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This article reports the effect of low-level laser therapy (LLLT) on the edema formation and leukocyte influx caused by Bothrops jararacussu snake venom as an alternative treatment for Bothrops snakebites. The inflammatory reaction was induced by injection of 0.6 mg/kg of B. jararacussu venom, in gastrocnemius muscle. Cell influx and edema were evaluated at 3 or 24 h after venom injection. Mice were irradiated at the site of injury by a low-level laser (685 nm) with a dose of 4.2 J/cm(2). A therapy that combines LLLT and antivenom was also studied. B. jararacussu venom caused a significant edema formation 3 and 24 It after its injection, and a prominent leukocyte infiltrate composed predominantly of nentrophils at 24 h after venom inoculation. LLLT significantly reduced edema formation by 53% and 64% at 3 and 24 h, respectively, and resulted in a reduction of neutrophils accumulation (P < 0.05). The combined therapy showed to be more efficient than each therapy acting separately. In conclusion, LLLT significantly reduced the edema and leukocyte influx into the envenomed muscle, suggesting that LLLT should be considered as a potentially therapeutic approach for the treatment of the local effects of Bothrops species. (c) 2008 Elsevier Ltd. All rights reserved.
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