Abstract:
:The objective of this study was to evaluate the genotoxic and mutagenic effects of the toxins present in Lachesis muta muta's venom on human peripheral blood leukocytes and the protective potential of ascorbic acid on DNA fragmentation. The venom of L. muta muta was incubated in different concentrations (1, 2.5, 5, 7.5, 10, 15, 20, 30, 40, 50, 60, and 120 µg/mL) with human blood to evaluate DNA fragmentation using the comet, agarose gel electrophoresis, and micronucleus assays. In these concentrations evaluated, the venom of L. muta muta induced genotoxicity (comet assay and agarose gel electrophoresis) and mutagenicity (micronucleus test), but they were not cytotoxic, as they did not change the rate of cell proliferation after cytokinesis blockade with cytochalasin B. The ascorbic acid significantly inhibited the genotoxicity induced by L. muta muta venom in the proportions evaluated (1:0.1 and 1:0.5, venom/ascorbic acid - w/w). Thus, future studies are needed to elucidate the protective mechanisms of ascorbic acid on the genotoxic effects induced by toxins present in snake venoms.
journal_name
J Cell Biochemjournal_title
Journal of cellular biochemistryauthors
Cardoso Trento MV,de Faria Eleutério MW,Silva Abreu T,Andrade Machado GH,Cesar PHS,Assaid Simão A,Marcussi Sdoi
10.1002/jcb.27628subject
Has Abstractpub_date
2019-03-01 00:00:00pages
3520-3528issue
3eissn
0730-2312issn
1097-4644journal_volume
120pub_type
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