Ya existen algunos estudios que han observado un menor riesgo de cáncer cerebral en pacientes asmáticos, aunque su diseño ha sido controvertido.
En la nueva investigación, científicos de la Ohio State University estudiaron la posible asociación entre variantes genéticas relacionadas con el asma en 111 pacientes diagnosticados de glioblastoma multiforme y 422 controles.
Comprobaron que el asma se asocia a un menor riesgo de desarrollar este tumor cerebral e identificaron dos variantes genéticas que se asocian a un mayor riesgo de este tipo de tumor, y una que disminuye dicho riesgo. Las dos formas del gen que incrementan las probabilidades reducen a su vez el riesgo de desarrollar asma.
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