Studiul a identificat mutaţiile a şapte gene care par să crească riscul de declanşare a leprei, contrazicând astfel teoria actuală, potrivit căreia această maladie nu este congenitală, informează Mediafax. Cercetătorii au realizata că dacă un părinte are această boală, este foarte probabil ca şi copiii săi să sufere de această maladie. Însă în cazul cuplurilor, dacă unul din parteri are această boală, celălalt rămâne neinfectat timp de multe decenii…
Experţii au analizat genele provenind de la 706 de pacienţi suferind de lepră şi de la 1.225 de persoane sănătoase. Ei au constatat prezenţa în număr mare a mutaţiilor la nivelul a şapte gene, în cazul pacienţilor suferind de lepră. Participanţii la acest studiu au fost etnici chinezi provenind din partea de est a Chinei.
Cinci din cele şapte gene sunt implicate în reglarea sistemului imunitar uman, au declarat cercetătorii din China şi din Singapore, autorii studiului. Lepra, sau maladia Hansen, este provocată de Mycobacterium leprae.
Boala afectează pielea, mucoasele, nervii periferici şi ochii. Deoarece avarierea nervilor este permanentă, pacienţii care reuşesc să se însănătoşească, nu pot să mai simtă durerea. Micile tăieturi de la nivelul degetelor de la mâini şi de la picioare se transformă adeseori în plăgi adânci, inflamate, din cauza condiţiilor de trai neigienice.
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