Abstract: Methods of using B2 or Alu nucleic acids, or antisense oligonucleotides that modulate the EZH2/B2 or EZH2/Alu interaction and have the capacity to alter cleavage of B2 and Alu RNA, for increasing or decreasing cell and organismal viability.

Abstract: Methods of using B2 or Alu nucleic acids, or antisense oligonucleotides that modulate the EZH2/B2 or EZH2/Alu interaction and have the capacity to alter cleavage of B2 and Alu RNA, for increasing or decreasing cell and organismal viability.

Abstract: Methods of using B2 or Alu nucleic acids, or antisense oligonucleotides that modulate the EZH2/B2 or EZH2/Alu interaction and have the capacity to alter cleavage of B2 and Alu RNA, for increasing or decreasing cell and organismal viability.

Abstract: In a first aspect, the present invention relates to a method for prevention or treating memory impairment and/or a neurodegenerative condition, disorder or disease in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of a compound targeting a miRNA or any precursor, or targeting the activity of said miRNA or any precursor thereof. In particular, the present invention relates to a method wherein the targeted miRNA is miR-34. Moreover, the present invention relates to a method for improving memory functionality in a subject suffering from memory loss, said method comprises the reduction or reducing the level of miR-34 levels or precursor molecule levels in brain tissue of said subject administering to the subject a therapeutically effective amount of a compound targeting miR-34 or any precursor thereof.