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Osteopontin concent...
Osteopontin concentrations are increased in cerebrospinal fluid during attacks of multiple sclerosis
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Bornsen, L (författare)
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- Khademi, M (författare)
- Karolinska Institutet
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- Olsson, T (författare)
- Karolinska Institutet
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Sorensen, PS (författare)
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Sellebjerg, F (författare)
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(creator_code:org_t)
- 2010-10-04
- 2011
- Engelska.
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Ingår i: Multiple sclerosis (Houndmills, Basingstoke, England). - : SAGE Publications. - 1477-0970 .- 1352-4585. ; 17:1, s. 32-42
- Relaterad länk:
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http://kipublication...
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https://doi.org/10.1...
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Abstract
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- Background:The cytokine osteopontin (OPN) is a potential key player in the immunopathogenesis of multiple sclerosis (MS) and a candidate biomarker for disease activity. Objective:The objective of this study was to examine concentrations of OPN in the cerebrospinal fluid (CSF) across the clinical spectrum of MS. Methods:Our research consisted of a cross-sectional study of patients from two randomized, placebo-controlled trials. Concentrations of OPN and other blood and CSF markers were determined using an enzyme-linked immunosorbent assay (ELISA). Samples were obtained from untreated patients with exacerbation of clinically isolated syndrome (CIS) ( n = 25) and relapsing–remitting MS (RRMS) ( n = 41) of whom 48 participated in clinical trials, randomly allocated to treatment with placebo or methylprednisolone (MP) and undergoing repeated sampling after 3 weeks. Furthermore, we obtained CSF and blood samples from patients with primary progressive MS (PPMS, n = 9), secondary progressive MS (SPMS, n = 28) and other neurological disorders (OND, n = 44), and blood samples from 24 healthy subjects. Results:OPN concentrations were significantly increased in the CSF of patients with CIS ( p = 0.02) and RRMS ( p < 0.001) in exacerbation compared to patients with OND, and increased levels of OPN were associated with high values of other biomarkers of inflammation. At 3-week follow-up CSF OPN concentrations had decreased significantly from baseline regardless treatment with placebo or MP. Patients with PPMS had increased OPN levels in the CSF ( p = 0.004) and high CSF levels of OPN were associated with high degrees of disability. Conclusions:OPN concentration in the CSF is a dynamic indicator of disease activity in RRMS, presumably reflecting ongoing inflammation. Increased CSF OPN concentrations in PPMS may indicate ongoing inflammation even in these patients.
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