**Acknowledgements**

The work was supported by the projects '"Centre for Translational Medicine' code: 6220220021, 'Identification of Novel Markers in Diagnostic Panel of Neurological Diseases' code: 26220220114, 'Martin Biomedical Center (BioMed Martin)' ITMS code: 26220220187 cofinanced from EU sources and European Regional Development Fund and the grant of Ministry of Health, 2012/30-UKMA-7 and APVV No. 15/0107.
