Bothrops moojeni and Crotalus durissus terrificus whole venoms activate transcription factor NF-κB in 3T3-L1 preadipocytes

Toxicon ◽  
2019 ◽  
Vol 168 ◽  
pp. S20
Author(s):  
Rodrigo Maia Marques ◽  
Priscila Signor Motta ◽  
Danilo Dos Santos Teixeira ◽  
Elbio Leiguez ◽  
Catarina Teixeira
Keyword(s):  
Transcription Factor ◽  
Crotalus Durissus Terrificus ◽  
Activate Transcription Factor ◽  
Crotalus Durissus ◽  
Bothrops Moojeni

L-aminoacid oxidase from Crotalus durissus terrificus snake venom and its antibacterial potential

Toxicon ◽  
2019 ◽  
Vol 168 ◽  
pp. S13
Author(s):  
Leonardo Melo ◽  
Lidiane Nunes Barbosa ◽  
Rui Seabra Ferreira Junior ◽  
Benedito Barraviera ◽  
Luciana Curtolo De Barros ◽  
...  
Keyword(s):  
Snake Venom ◽  
Crotalus Durissus Terrificus ◽  
Crotalus Durissus ◽  
Antibacterial Potential

scholarly journals Multiple effects of toxins isolated from Crotalus durissus terrificus on the hepatitis C virus life cycle

PLoS ONE ◽  
2017 ◽  
Vol 12 (11) ◽  
pp. e0187857 ◽  
Author(s):  
Jacqueline Farinha Shimizu ◽  
Carina Machado Pereira ◽  
Cintia Bittar ◽  
Mariana Nogueira Batista ◽  
Guilherme Rodrigues Fernandes Campos ◽  
...  
Keyword(s):  
Life Cycle ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Crotalus Durissus Terrificus ◽  
Virus Life Cycle ◽  
Crotalus Durissus

Semen collection and evaluation in free-ranging Brazilian rattlesnakes (Crotalus durissus terrificus)

Zoo Biology ◽  
2007 ◽  
Vol 26 (2) ◽  
pp. 155-160 ◽  
Author(s):  
Rogério Loesch Zacariotti ◽  
Kathleen Fernandes Grego ◽  
Wilson Fernandes ◽  
Sávio Stefanini Sant'Anna ◽  
Marcelo Alcindo de Barros Vaz Guimarães
Keyword(s):  
Crotalus Durissus Terrificus ◽  
Semen Collection ◽  
Crotalus Durissus ◽  
Free Ranging

scholarly journals Inhibition of Neurotoxic Secretory Phospholipases A2Enzymatic, Edematogenic, and Myotoxic Activities by Harpalycin 2, an Isoflavone Isolated fromHarpalyce brasilianaBenth

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Rafael M. Ximenes ◽  
Marcelo M. Rabello ◽  
Renata M. Araújo ◽  
Edilberto R. Silveira ◽  
Fábio H. R. Fagundes ◽  
...  
Keyword(s):  
Active Site ◽  
Initial Step ◽  
Significant Inhibition ◽  
Lipid Mediators ◽  
Naja Naja ◽  
Crotalus Durissus Terrificus ◽  
Docking Calculations ◽  
Crotalus Durissus ◽  
Bothrops Pirajai ◽  
Phospholipases A

Secretory phospholipases A2(sPLA2) exert proinflammatory actions through lipid mediators. These enzymes have been found to be elevated in many inflammatory disorders such as rheumatoid arthritis, sepsis, and atherosclerosis. The aim of this study was to evaluate the effect of harpalycin 2 (Har2), an isoflavone isolated fromHarpalyce brasilianaBenth., in the enzymatic, edematogenic, and myotoxic activities of sPLA2fromBothrops pirajai, Crotalus durissus terrificus, Apis mellifera,andNaja najavenoms. Har2 inhibits all sPLA2tested. PrTX-III (B. pirajaivenom) was inhibited at about 58.7%, Cdt F15 (C. d. terrificusvenom) at 78.8%, Apis (from bee venom) at 87.7%, and Naja (N. najavenom) at 88.1%. Edema induced by exogenous sPLA2administration performed in mice paws showed significant inhibition by Har2 at the initial step. In addition, Har2 also inhibited the myotoxic activity of these sPLA2s. In order to understand how Har2 interacts with these enzymes, docking calculations were made, indicating that the residues His48 and Asp49 in the active site of these enzymes interacted powerfully with Har2 through hydrogen bonds. These data pointed to a possible anti-inflammatory activity of Har2 through sPLA2inhibition.

scholarly journals Thermolability of 28S ribosomal ribonucleic acid from the liver of Crotalus durissus terrificus (Ophidia, Reptilia)

1973 ◽  
Vol 135 (1) ◽  
pp. 73-79 ◽  
Author(s):  
J. F. Giorgini ◽  
F. L. De Lucca
Keyword(s):  
Molecular Weight ◽  
Gradient Centrifugation ◽  
Polyacrylamide Gel Electrophoresis ◽  
Sucrose Density Gradient ◽  
Dimethyl Sulphoxide ◽  
Low Molecular Weight ◽  
28S Rrna ◽  
Sucrose Density Gradient Centrifugation ◽  
Crotalus Durissus Terrificus ◽  
Crotalus Durissus

Instability of 28S rRNA of Crotalus durissus terrificus liver was observed during hotphenol extraction: purified 28S rRNA is converted into an 18S RNA component by heat treatment. It was also found that ‘6S’ and ‘8S’ low-molecular-weight RNA species were released during the thermal conversion. This conversion and the release of the low-molecular-weight species were also induced by 8m-urea and 80% (v/v) dimethyl sulphoxide at 0°C. Evidence is presented that this phenomenon is an irreversible process and results from the rupture of hydrogen bonds. The 18S RNA product was shown to be homogeneous by polyacrylamide-gel electrophoresis and by sucrose-density-gradient centrifugation. The base composition of the 18S RNA products obtained by heat, urea or dimethyl sulphoxide treatments was similar. The C+G content of the 18S RNA product was different from that of the native 18S rRNA, but similar to that of 28S rRNA.

scholarly journals Caryospora bigenetica (Apicomplexa: Eimeriidae) in South America: new hosts and distribution records

2015 ◽  
Vol 24 (1) ◽  
pp. 101-104 ◽  
Author(s):  
Lúcio André Viana ◽  
Kamilla Costa Mecchi ◽  
Leonardo França do Nascimento ◽  
Heitor Miraglia Herrera ◽  
Paula Helena Santa-Rita ◽  
...  
Keyword(s):  
South America ◽  
Polar Granule ◽  
First Record ◽  
Stieda Body ◽  
Mato Grosso ◽  
Sporocyst Residuum ◽  
The Family ◽  
New Hosts ◽  
Crotalus Durissus ◽  
Bothrops Moojeni

The coccidian Caryospora bigenetica was first described in the snake Crotalus horridus (Viperidae) from United States of America. This study represents the first record of the occurrence of C. bigenetica in snakes in South America. Feces were sampled between November 2013 and May 2014 from 256 wild snakes maintained in scientific breeding facilities in the states of Mato Grosso do Sul (MS; n = 214) and Rio de Janeiro (RJ; n = 42), Brazil. Caryospora bigenetica was found in 14 (5.6%) snakes, all belonging to the family Viperidae. Ten Bothrops moojeni and two Crotalus durissus from MS were infected. The coccidian was also found in one C. durissus and in one Bothrops jararacussu from the state of RJ. The oocysts were spherical with a double wall, the exterior lightly mammillated, striations apparent in transverse view, 13.0 µm (12 – 14); polar granule fixed in the internal wall. Sporocysts oval or pyriform, 10.0 × 8.0 µm (9 – 11 × 8 – 9); Stieda body discoid; sub-Stieda body present; sporocyst residuum present, formed by a group of spheroid bodies between sporozoites. This study increases the number of viperid hosts of C. bigenetica and expands the geographical distribution to South America.

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