2011
DOI: 10.1590/s0100-879x2011007500116
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The inflammatory stimulus of a natural latex biomembrane improves healing in mice

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Cited by 83 publications
(72 citation statements)
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References 35 publications
(37 reference statements)
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“…A natural biomembrane prepared with latex extracted from the rubber tree Hevea brasiliensis and polymerized with 0.1% polylysine was developed by the Department of Biochemistry of the Faculty of Medicine, of Ribeirao Preto, University of Sao Paulo. The membrane was used experimentally as a cicatrization-inducing material on the injured esophageal walls of dogs and was shown to lead to a marked increase in vascularization and epithelialization 3,4 . When similar material was used clinically it led to a significant increase in the granulation tissue of phlebopathic ulcers in the legs of patients and to a concomitant reduction of pain during treatment 5,6 .…”
Section: Introductionmentioning
confidence: 99%
“…A natural biomembrane prepared with latex extracted from the rubber tree Hevea brasiliensis and polymerized with 0.1% polylysine was developed by the Department of Biochemistry of the Faculty of Medicine, of Ribeirao Preto, University of Sao Paulo. The membrane was used experimentally as a cicatrization-inducing material on the injured esophageal walls of dogs and was shown to lead to a marked increase in vascularization and epithelialization 3,4 . When similar material was used clinically it led to a significant increase in the granulation tissue of phlebopathic ulcers in the legs of patients and to a concomitant reduction of pain during treatment 5,6 .…”
Section: Introductionmentioning
confidence: 99%
“…Six images of the injury area were captured from every five animals in the group at the 3rd, 7th, 14th and 21st days of follow-up, which were analyzed using ImageJ software. In the quantification of inflammatory infiltrate and fibroblasts 400× of magnification were used and for quantification of blood vessels and percentage of the collagen area 200× [30]. The counts were performed in double-blind, considering the means of the counts of the six images/animal.…”
Section: Structural and Morphometric Analysismentioning
confidence: 99%
“…Utilizando-se de diferentes metodologias como análise de imagens pelo software ImageJ de secções histológicas coradas com hematoxilina e eosina, quanto ao infiltrado inflamatório, angiogênese e fibroplasia; e tricrômio de Gomori quanto à colagênese; imunoistoquímica para iNOS, IL-1β, TGF-β1, VEGF; além das dosagens de IL-1β e TGF-β1 por ELISA e de mieloperoxidase (determinante da função neutrofílica), ambas feitas a partir do macerado tecidual da região de implante. Andrade et al (2011) constatou que a BLN atua significativamente na fase inflamatória da cicatrização, importante no recrutamento neutrofílico para o local, confirmado quantitativamente pela concentração de mieloperoxidase e IL-1β. Este fato pareceu influenciar diretamente as fases subsequentes do processo cicatricial, confirmado pela sua capacidade estimuladora de angiogênese, provavelmente não influenciada por VEGF, e pelo estímulo à fibroplasia independente de TGF-β1 e sem modificação na produção colagênica.…”
unclassified
“…Sua avaliação como curativo em úlceras de pressão, hipertensivas, venosas e associadas à microangiopatia diabética demonstrou, ainda, a capacidade de manter as lesões úmidas e curativo não aderente, sendo eficaz no desbridamento e na angiogênese (FRADE et al, 2005). Dessa forma, os achados do látex como indutor da cicatrização por meio do estímulo à fase inflamatória (FRADE, 2003;ANDRADE et al, 2011), a eficácia do látex na cicatrização de úlceras em indivíduos com diabetes (FRADE et al, 2004) aliado às alterações causadas pelo estresse oxidativo em úlceras cutâneas associadas ao diabetes, torna-se relevante o estudo das modificações teciduais e dos mecanismos envolvidos na cicatrização de úlceras tratadas topicamente com a fração F1 do látex natural da seringueira Hevea brasiliensis em ratos induzidos ao diabetes. …”
unclassified