1 Department of Molecular Biology, University of Gdansk, Gdansk, Poland (Pierzynowska K).
2 Brain Diseases Centre, Medical University of Gdansk, Poland, and Department of Adult Neurology, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland (Karaszewski B).
3 Department of Molecular Biology, University of Gdansk, Gdansk, Poland (Węgrzyn G).