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Treatment response in relation to inflammatory and axonal surrogate marker in multiple sclerosis

Petzold, A.; Brassat, D.; Mas, P.; Rejdak, K.; Keir, G.; Giovannoni, G.; Thompson, E.J.; (2004) Treatment response in relation to inflammatory and axonal surrogate marker in multiple sclerosis. Multiple Sclerosis , 10 (3) pp. 281-283. 10.1191/1352458504ms1021sr. Green open access

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Abstract

BACKGROUND: This study aimed to investigate if treatment response could retrospectively be related to inflammatory or axonal pathology as measured by plasma surrogate markers. METHODS: In this 1-year observational study 30 multiple sclerosis (MS) patients with relapsing-remitting disease were treated with intramuscular IFNbeta-1a or subcutaneous IFNbeta-1b. Responders and nonresponders were defined according to clinical and magnetic resonance imaging criteria. The control group consisted of 14 healthy subjects. Plasma levels of surrogate markers for inflammation (nitric oxide metabolites (NOx)), astrocytic activation (S100B) and axonal damage (NfH(SM135)) were measured using standard assays. RESULTS: There were 11 nonresponders and 19 responders to IFNbeta treatment. Median S100B levels were elevated in a higher proportion of treatment responders (63%, 42.9 pg/mL) compared to nonresponders (18%, 11.7 pg/mL, P < 0.05, Fisher's exact test) and controls (0%, 2 pg/mL, P < 0.001). Levels of NOx were found to be more frequently elevated in nonresponders (72%, 39 microM) compared to healthy controls (0%, 37 microM, P < 0.05). Levels of NfH(SM135) were more frequently elevated in responders (58%, 300 pg/mL, P < 0.001) and nonresponders (72%, 500 pg/mL, P < 0.001) compared to controls (0%, 4.5 pg/mL). CONCLUSION: Patients with relapsing-remitting MS who had surrogate marker supported evidence for astrocytic activation responded more frequently to treatment with IFNbeta.

Type: Article
Title: Treatment response in relation to inflammatory and axonal surrogate marker in multiple sclerosis
Open access status: An open access version is available from UCL Discovery
DOI: 10.1191/1352458504ms1021sr
Publisher version: http://dx.doi.org/10.1191/1352458504ms1021sr
Language: English
Additional information: © Arnold 2004
Keywords: S100B, neurofilament, NfHSMI35 , NOx , surrogate marker, multiple sclerosis, treatment response
UCL classification: UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Neuroinflammation
URI: https://discovery.ucl.ac.uk/id/eprint/18939
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