Diabetes, hypoxia and cardiovascular disease: From molecular mechanism to treatment.

نویسنده

  • João Vasco Ferreira
چکیده

As doenças cardiovasculares (DC) são a causa mais frequente de morte em doentes com um quadro clínico de diabetes. Os dados mais recentes da American Heart Association mostram que a taxa de mortalidade relacionada com DC, em diabéticos com mais de 65 anos, é de 68%. Aproximadamente 50% dos adultos com diabetes desenvolvem uma DC fatal, o que implica que um doente diabético terá um risco duas vezes superior de desenvolver DC. Em alguns casos esta probabilidade poderá ser ascender até quatro vezes. A elevada mortalidade causada pela diabetes é ainda mais surpreendente se considerarmos que, atualmente, é possível controlar, de forma rigorosa, os níveis de glicose nestes doentes. Neste contexto, é imperativo concentrar esforços em investigação dirigida ao estudo dos mecanismos biológicos associados a DC em doentes diabéticos. Um dos estímulos que desencadeia a formação de novos vasos nos diversos órgãos e tecidos é a hipoxia, um mecanismo que se reveste de particular importância em doentes que desenvolvem isquemia do miocárdio no contexto das DC. Este estímulo deve-se, em parte, à ativação do fator de transcrição Hypoxia Inducible Factor 1 alpha (HIF1A)1,2. A forma mais conhecida de controlo da neovascularização

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عنوان ژورنال:
  • Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology

دوره 36 5  شماره 

صفحات  -

تاریخ انتشار 2017