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Metformin reverses early cortical network dysfunction and behavior changes in Huntington's disease

  • Isabelle Arnoux
  • , Michael Willam
  • , Nadine Griesche
  • , Jennifer Krummeich
  • , Hirofumi Watari
  • , Nina Offermann
  • , Stephanie Weber
  • , Partha Narayan Dey
  • , Changwei Chen
  • , Olivia Monteiro
  • , Sven Buettner
  • , Katharina Meyer
  • , Daniele Bano
  • , Konstantin Radyushkin
  • , Rosamund Langston
  • , Jeremy J. Lambert
  • , Erich Wanker
  • , Axel Methner
  • , Sybille Krauss
  • , Susann Schweiger (Lead / Corresponding author)
  • Albrecht Stroh (Lead / Corresponding author)

    Research output: Contribution to journalArticlepeer-review

    353 Downloads (Pure)

    Abstract

    Catching primal functional changes in early, 'very far from disease onset' (VFDO) stages of Huntington's disease is likely to be the key to a successful therapy. Focusing on VFDO stages, we assessed neuronal microcircuits in premanifest Hdh150 knock-in mice. Employing in vivo two-photon Ca2+ imaging, we revealed an early pattern of circuit dysregulation in the visual cortex- one of the first regions affected in premanifest Huntington's disease - characterized by an increase in activity, an enhanced synchronicity and hyperactive neurons. These findings are accompanied by aberrations in animal behavior. We furthermore show that the anti-diabetic drug metformin diminishes aberrant Huntingtin protein load and fully restores both, early network activity patterns and behavioral aberrations. This network-centered approach reveals a critical window of vulnerability far before clinical manifestation and establishes metformin as a promising candidate for a chronic therapy starting early in premanifest Huntington's disease pathogenesis long before the onset of clinical symptoms.

    Original languageEnglish
    Article numbere38744
    Pages (from-to)1-32
    Number of pages32
    JournaleLife
    Volume7
    DOIs
    Publication statusPublished - 4 Sept 2018

    UN SDGs

    This output contributes to the following UN Sustainable Development Goals (SDGs)

    1. SDG 3 - Good Health and Well-being
      SDG 3 Good Health and Well-being

    ASJC Scopus subject areas

    • General Neuroscience
    • General Biochemistry,Genetics and Molecular Biology
    • General Immunology and Microbiology

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