The influence of menopause on multiple sclerosis

Area of Science:

• Neurology
• Women's Health
• Reproductive Endocrinology

Background:

• Multiple Sclerosis (MS) affects many peri- or postmenopausal women, a demographic comprising one-third of the MS population.
• Menopause symptoms often overlap with MS symptoms, complicating disease management and assessment.
• Existing research presents conflicting evidence regarding menopause's impact on MS disability progression.

Purpose of the Study:

• To investigate the association between menopause and the disease course in multiple sclerosis.
• To determine if menopause influences the progression of disability and relapse rates in MS patients.

Main Methods:

• A prospective cohort study design was employed, collecting clinical data over time.
• Retrospective data collection included self-reported age of menopause, smoking history, and parity.
• Analysis compared disease progression metrics (EDSS, ARR) in women before and after menopause, and against age-matched men.

Main Results:

• No significant differences in Expanded Disability Status Scale (EDSS) progression or Annual Relapse Rate (ARR) were observed in the five years before and after menopause.
• Women exhibited slower EDSS progression compared to men post-menopause, though ARR showed no significant difference.
• Menopause onset before MS diagnosis was associated with a longer time to diagnosis.

Conclusions:

• Menopause does not appear to negatively impact multiple sclerosis disease progression, as measured by EDSS and ARR.
• Disease progression in women post-menopause was slower than in men, suggesting a potentially protective effect.
• The timing of menopause relative to MS onset and diagnosis influences the time to diagnosis.