Oxidative Stress and Inflammation Interdependence in Multiple Sclerosis

Area of Science:

• Neuroimmunology
• Clinical Chemistry

Background:

• Multiple Sclerosis (MS) is a chronic inflammatory demyelinating disease of the central nervous system.
• Oxidative stress and inflammation are implicated in MS pathogenesis and progression.
• Early detection of inflammatory status in stable MS patients with low disability is crucial.

Purpose of the Study:

• To investigate the oxidative status and inflammatory markers in peripheral blood of stable relapsing-remitting MS patients with low disability.
• To correlate oxidative stress markers with inflammatory markers like neutrophil/lymphocyte ratio (NLR).

Main Methods:

• Analyzed peripheral blood samples from 16 relapsing-remitting MS patients (low disability) and 15 healthy controls.
• Measured oxidative stress markers: Thiobarbituric acid reactive substances (TBARS) and protein carbonyl level (PCO).
• Assessed total antioxidant capacity (TAC) and inflammatory markers: neutrophil/lymphocyte ratio (NLR) and erythrocyte sedimentation rate (ESR).

Main Results:

• Increased neutrophil/lymphocyte ratio (NLR) was observed in MS patients, indicating a pro-inflammatory status.
• Higher NLR correlated with decreased total antioxidant capacity (TAC), even in early disease stages.
• Elevated oxidative stress markers were associated with inflammation in stable MS patients.

Conclusions:

• Neutrophil/lymphocyte ratio (NLR) is a reliable indicator of the pro-inflammatory status in relapsing-remitting MS.
• Reduced antioxidant capacity is linked to increased inflammation and NLR in early MS.
• Oxidative stress exacerbates functional outcomes, potentiates neuronal damage, and may accelerate MS progression.