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Cerebrospinal fluid nitrate levels in patients with multiple sclerosis
F de Bustos1, J A Navarro, C de Andrés
1Department of Biochemistry, Hospital Doce de Octubre, Madrid, Spain.
European Neurology
|January 14, 1999
Summary
Nitric oxide (NO) may play a role in multiple sclerosis (MS). This study found no significant difference in cerebrospinal fluid (CSF) nitrate levels between MS patients and controls, suggesting it is not a reliable marker for MS activity.
Area of Science:
- Neuroimmunology
- Biomarkers
- Nitric Oxide Metabolism
Background:
- Nitric oxide (NO) involvement in multiple sclerosis (MS) pathogenesis is debated.
- Previous studies reported conflicting findings regarding cerebrospinal fluid (CSF) nitrate levels in MS patients.
Purpose of the Study:
- To investigate the role of nitric oxide (NO) in multiple sclerosis (MS) by measuring CSF and plasma nitrate levels.
- To determine if CSF nitrate levels can serve as a biomarker for MS activity.
Main Methods:
- Kinetic cadmium reduction method used to measure CSF and plasma nitrate levels.
- Study included 11 MS patients and 25 matched controls.
- Analyzed correlation between nitrate levels, age at onset, and disease duration.
Main Results:
- No significant difference in CSF nitrate levels or CSF/plasma nitrate ratio between MS patients and controls.
- Plasma nitrate levels were marginally lower in MS patients.
- CSF and plasma nitrate levels did not correlate with disease duration or age at onset.
Conclusions:
- CSF nitrate levels are not a reliable marker for multiple sclerosis (MS) activity.
- The role of nitric oxide (NO) in MS pathogenesis requires further investigation.
- Findings do not support the use of nitrate measurements as a diagnostic or prognostic tool for MS.