
Se ştie că în peste jumătate din cazuri, epilepsia poate fi provocată de o lovitură la cap, o tumoare la creier sau o altă afecţiune neurologică, însă în celelalte cazuri se bănuieşte că este vorba despre o cauză genetică.
Astăzi au fost publicate, în jurnalul PNAS (Proceedings of the National Academy of Sciences), concluziile unui ultim studiu în acest sens. O echipă de cercetători de la Universitatea din Leeds, susţine că mutaţia genei ATP1A3 poate duce la o formă severă de epilepsie la şoareci, iar dacă descoperirea se poate aplica şi oamenilor, ea ar putea conduce la tratamente mai eficiente ale epilepsiei.
Potrivit acestora, se pare că există o potrivire de 99 la sută între versiunile genei la oameni şi la şoareci.Echipa din spatele acestui studiu a ajuns la concluzia că gena ATP1A3, implicată în reglarea nivelului de sodiu şi de potasiu din creier este cea care poate declanşa epilepsia. şi se poate transmite de la părinţi la copii.
„Dezechilibrele dintre cantitatea de sodiu şi potasiu au fost demult bănuite că pot conduce la epilepsie, dar studiul nostru este primul care arată dincolo de orice îndoială că un defect al genei ATP1A3 este responsabil pentru acest lucru”, susţin cercetătorii. Î
n România există aproximativ 500 000 de bolnavi de epilepsie, adică 2 % din populaţia ţării. Tratamentul anticonvulsiv, cel mai comun, este ineficient în peste 30% din cazuri, iar efectele sale secundare pot afecta cu mult calitatea vieţii.
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