25 de abr de 2009

Cientistas descobrem genes que ajudam a frear câncer e esclerose

Matéria publicada em 25/04/2009




Estudo pode originar tratamentos médicos contra doenças relacionadas ao sistema imunológico.

Reino Unido - Cientistas da Universidade de Edimburgo, no Reino Unido, descobriram os componentes genéticos que podem ter um papel de destaque na hora de desacelerar ou deter doenças como o câncer e a esclerose múltipla.Os pesquisadores, dirigidos pelo professor David Hume, publicaram o estudo na revista "Nature Genetics" e destacaram que isso pode dar origem a novos tratamentos médicos contra as doenças relacionadas ao sistema imunológico.Até agora, os cientistas achavam que um grupo seleto de "genes mestres", como chamam os pesquisadores, controlava o crescimento das células que causavam os problemas.
O trabalho completa a teoria afirmando que há centenas de genes que interagem na geração destas doenças, em processo com infinitas variações que fazem com que a aparição e as causas das mesmas sejam diferentes de indivíduo para indivíduo.Os pesquisadores esperam que a identificação dos "pontos fracos" na estrutura genética dos indivíduos ajude a criar mecanismos médicos que permitam interromper o crescimento de tumores em benefício do crescimento das células saudáveis. 

Fonte:

:http://zerohora.clicrbs.com.br/zerohora/jsp/default2.jsp?uf=1&local=1&source=a2487394.xml&template=3916.dwt&edition=12188&section=1028


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