Inflammatory and Neurotrophic Factors and Their Connection to Quality of Life in Progressive Supranuclear Palsy-Single-Center Study.

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Progressive supranuclear palsy (PSP) is a condition classified as atypical parkinsonism. Pathologically, it is a four-repeat tauopathy; clinically, it is a disease comprising oculomotor dysfunction, postural instability, akinesia, and cognitive/language disorders. Its pathogenesis is not fully recognized; however, neuroinflammation is considered to likely be a significant aspect, though it is not known whether inflammation is a cause or consequence of neurodegeneration. In this study, the authors analyzed the association between inflammatory/neurotrophic factors and parameters linked to quality of life, based on examinations of 10 controls and 11 patients with PSP. They found a negative correlation between mPSPRS (Modified Progressive Supranuclear Palsy Rating Scale) and the glial cell-line-derived neurotrophic factor levels (GDNF) (r = -0.772727, p = 0.003) in the serum, a less pronounced negative correlation between progressive supranuclear palsy-quality of life parameter (PSP-QoL) and GDNF (r = -0.68390, p = 0.011) in the serum, and no correlations were observed in the analyses of inflammatory factors. The obtained results show the association between lower levels of GDNF and more pronounced clinical deterioration. Further analysis in the field based on larger groups of patients is required.

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