Differential pattern of brain-specific CSF proteins tau and amyloid-β in Parkinsonian syndromes.

To evaluate cerebrospinal fluid (CSF) proteins reflecting processes of neurodegeneration and glial activation in progressive supranuclear palsy (PSP; Richardson's syndrome, n = 20; PSP-Parkinsonism, n = 7) and multiple system atrophy (MSA, n = 25), we analyzed tau, phosphorylated tau, amyloid-beta(1-42) (Abeta1-42), Abeta1-40, glial fibrillary acidic protein (GFAP), and CSF routine variables. Individuals with PSP-Parkinsonism and MSA had elevated tau levels when compared with Richardson's syndrome, Parkinson's disease (PD), and age-matched controls (P View Article and Find Full Text PDF

Musculoskeletal abnormalities of the forearm in patients with juvenile idiopathic arthritis relate mainly to bone geometry.

Objective: Alterations of the skeletal system, including reduced bone mineral density, increased frequency of fractures, and changes in markers of bone metabolism, have been described in juvenile idiopathic arthritis (JIA), but measurement of volumetric bone density and bone geometry is not possible with the techniques used in most studies. This study was undertaken to obtain a more detailed understanding of the musculoskeletal system in JIA by analyzing bone density, bone geometry, and muscle force as the most important factor in bone development.

Methods: The technique of peripheral quantitative computed tomography was used in a cross-sectional study of 57 children with the oligoarticular, polyarticular, or systemic form of JIA.