Body mass index influence interferon-beta treatment response in multiple sclerosis

Highlights

• Overweight and obese MS patients (BMI > 25 kg/m²) had more MRI-activity during interferon-beta treatment compared to normal-weight patients.
• Fewer overweight and obese MS patients achieved no evidence of disease activity (NEDA) status during interferon-beta treatment, compared to normal-weight patients.
• There was no association between MRI disease activity or EDSS score and BMI before initiation of interferon-beta.
• BMI was inversely correlated with the inflammation marker pentraxin 3 and positively correlated with interleukin-1 receptor antagonist.

Abstract

Obesity is a possible risk factor of multiple sclerosis (MS), but the association between obesity and MS disease activity has not been explored. In a cohort of 86 MS patients, 80% of overweight or obese patients (BMI ≥ 25 kg/m2) had MRI activity compared to 48% of the normal-weight patients (BMI < 25 kg/m2) (p = 0.001) during interferon-betatreatment. NEDA-status (no evidence of disease activity) was defined as a composite that consisted of absence of any relapses, sustained disability-progression and MRI-activity. Among normal-weight patients 26% obtained NEDA-status compared to only 13% of patients with BMI > 25 (p = 0.05). This may indicate that BMI affects interferon-beta treatment response.

via Journal of Neuroimmunology

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