title: Correlations between peripheral blood mononuclear cell production of BDNF, TNF-alpha, IL-6, IL-10 and cognitive performances in multiple sclerosis patients.
abstract: The aim of this study was to investigate the role of Brain Derived Neurotrophic Factor (BDNF) and inflammatory factors in the development of cognitive dysfunctions in Multiple Sclerosis (MS). We correlated peripheral blood mononuclear cell (PBMC) production of BDNF, Tumor Necrosis Factor-alpha (TNF-alpha), Interleukin (IL)-6 and IL-10 with performances on specific neuropsychological tasks in a selected series of MS patients. We studied a sample of 30 patients with relapsing-remitting (RR)MS, segregated by gender and matched for age, education, disease duration, type of immunomodulating therapy, degree of disability and overall cognitive status. We found that low BDNF levels were correlated with increased time of execution on a divided attention and visual scanning task whereas high levels of IL-6 were correlated with low Mini Mental State Examination scores. We did not observe any significant correlations between IL-10, TNF-alpha levels and cognitive performances in our patients. In conclusion our study shows a correlation between low BDNF and high IL-6 production by PBMCs and poorer performances in cognitive tasks in RRMS patients suggesting a possible role of these factors in cognitive impairment in MS.
authors.affiliation: Institute of Neurology, Catholic University, Rome, Italy.
authors.forename: A K
authors.initials: AK
authors.lastname: Patanella
authors.forename: M
authors.initials: M
authors.lastname: Zinno
authors.forename: D
authors.initials: D
authors.lastname: Quaranta
authors.forename: V
authors.initials: V
authors.lastname: Nociti
authors.forename: G
authors.initials: G
authors.lastname: Frisullo
authors.forename: G
authors.initials: G
authors.lastname: Gainotti
authors.forename: P A
authors.initials: PA
authors.lastname: Tonali
authors.forename: A P
authors.initials: AP
authors.lastname: Batocchi
authors.forename: C
authors.initials: C
authors.lastname: Marra
mesh_terms: D000328:Adult; D015415:Biomarkers / Q000032:analysis / Q000378:metabolism; D001921:Brain / Q000276:immunology / Q000378:metabolism / Q000473:pathology; D019208:Brain-Derived Neurotrophic Factor / Q000378:metabolism; D003072:Cognition Disorders / Q000276:immunology / Q000378:metabolism* / Q000503:physiopathology; D015331:Cohort Studies; D016207:Cytokines / Q000378:metabolism*; D004660:Encephalitis / Q000276:immunology / Q000378:metabolism / Q000503:physiopathology; D005260:Female; D006801:Humans; D016753:Interleukin-10 / Q000378:metabolism; D015850:Interleukin-6 / Q000378:metabolism; D007963:Leukocytes, Mononuclear / Q000378:metabolism*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D020529:Multiple Sclerosis, Relapsing-Remitting / Q000150:complications / Q000276:immunology / Q000378:metabolism*; D009414:Nerve Growth Factors / Q000378:metabolism*; D009483:Neuropsychological Tests; D013223:Statistics as Topic; D014409:Tumor Necrosis Factor-alpha / Q000378:metabolism
chemical_list: D015415:Biomarkers; D019208:Brain-Derived Neurotrophic Factor; D016207:Cytokines; D015850:Interleukin-6; D009414:Nerve Growth Factors; D014409:Tumor Necrosis Factor-alpha; D016753:Interleukin-10