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Type: Artigo
Title: Effect of a pool of peptides isolated from crotalus durissus terrificus (south american rattlesnake) venom on glucose levels of mice fed on a high-fat diet
Author: Martins-Santos, M. E. S.
Resende, R. R.
Pinto, F. C. H.
Soares, A. M.
Marangoni, S.
Oliveira, E.
Albericio, F.
Silva, S. L. da
Abstract: This study investigated the effect of a pool of peptides, isolated from venom of Crotalus durissus terrificus (South American rattlesnake) on glucose concentration in C57BL/6 mice fed on a high-fat diet for 6 weeks. The pool of peptides (molecular mass around of 10 kDa) was obtained using a MidJet apparatus with a cartridge of 10 KDa. The peptide pool was injected intraperitoneally in mice in a single dose (0.5 mg/animal) or multiple doses (0.2 mg/dose). After predetermined times (30, 60, 90 and 120 min) post injections, venous blood samples were collected for enzymatic measurement of serum glucose using a commercial glucose kit (glucose oxidase method). High-fat fed mice showed an increase in blood glucose concentration, in comparison with mice fed on the chow diet. Thirty minutes after a single dose of the peptide pool, high-fat fed animals showed a significant decrease (~47%) in glycemia. However, the glucose level increased again at 60 and 120 min. Conversely, after multiple injections of the pool of peptides administered every 30 min, the blood glucose concentration in the high-fat mice was significantly decreased (~37%) and remained at low levels until 120 min. These results suggest that the tested pool of peptides from Crotalus durissus terrificus contained a peptide (or peptides) with a beneficial role on glucose-lowering action of high-fat fed mice
Subject: Crotalus durissus terrificus
Country: Países Baixos
Editor: Springer
Rights: Fechado
Identifier DOI: 10.1007/s10989-011-9261-0
Date Issue: 2011
Appears in Collections:IB - Artigos e Outros Documentos

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