Estatinas e stresse oxidativo na insuficiência cardíaca crónica

作者: Sónia Costa , Marta Reina‐Couto , António Albino‐Teixeira , Teresa Sousa

DOI: 10.1016/J.REPC.2015.09.006

关键词:

摘要: Resumo As estatinas sao os farmacos mais prescritos no tratamento da dislipidemia, estando recomendadas na prevencao primaria e secundaria das doencas cardiovasculares. Para alem de diminuirem a sintese colesterol, interferem com intermediarios isoprenoides, o que podera explicar muitos dos seus efeitos pleiotropicos, incluindo acao antioxidante. O stresse oxidativo definido como um desequilibrio entre formacao especies reativas oxigenio sua eliminacao por sistemas defesa antioxidantes, prevalencia estado pro‐oxidante deleterios nas macromoleculas orgânicas sinalizacao redox celular. podem interferir varios processos afetam estrutura funcao cardiacas, contribuindo para disfuncao contractil, fibrose hipertrofia do miocardio observadas fisiopatologia insuficiencia cardiaca. promovem restauracao equilibrio pela regulacao varias vias moleculares responsaveis pelo controlo atividade enzimas NADPH oxidase sintetase endotelial monoxido azoto. Estes contribuem tambem inflamatorios parecem desempenhar papel protetor em patologias. Os resultados estudos observacionais ensaios clinicos, realizados objetivo esclarecer efeito cardiaca, nao tem sido consensuais. Esta revisao principal analisar cardiaca mecanismos inerentes as propriedades antioxidantes estatinas. Pretende ainda reunir evidencia cientifica atual relativa utilizacao destes terapeutica especifica

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