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Biomateriais sintéticos e xenógenos com alto potencial clínico para reparo tecidual

Authors: Júlio César Matias de Souza; Oscar Carvalho; Bruno Henriques; Filipe Silva; Hassan Bousbaa; João Caramês;

Biomateriais sintéticos e xenógenos com alto potencial clínico para reparo tecidual

Abstract

O objetivo do presente trabalho foi realizar uma revisão da literatura sobre o uso de biomateriais de origem animal (xenógeno) e sintética para o reparo do tecidual. Diferentes materiais cerâmicos e poliméricos sintéticos e xenógenos são aplicados para o reparo ósseo. Dentre os cerâmicos, a mistura de hidroxiapatite e ?-TCP (60-70/40-30 wt%), apatite carbonada e hidroxiapatite de origem bovina ou suína são comumente aplicados, no entanto a taxa de absorção dos materiais sintéticos é lenta quando comparado ao processo de cicatrização na presença dos xenógenos. Além disso, a resposta biológica de materiais sintéticos ainda é inferior à resposta aos materiais xenógenos. Tendo em consideração os diversos polímeros, os materiais xenógenos (ex. colagénio, quitosana) têm apresentado uma resposta biológica mais adequada quando comparado aos sintéticos (ex. PLGA, PLDLA). A cicatrização tecidual óssea é um processo que envolve fases de migração celular, deposição de proteínas e minerais, formação vascular, e desenvolvimento de tecidos conectivo e ósseo. O desenvolvimento de polímeros sintéticos com taxa de absorção adequada ao processo de reparo tecidual associada a uma alta bioatividade e promoção da angiogénese tem sido o alvo de estudos recentes. Além disso, combinação de sintéticos e xenógenos também torna-se uma alternativa com alto potencial de sucesso clínico.

Keywords

biomateriais, sintéticos, xenógeno, reparo tecidual, R, Medicine

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold