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Multiple sclerosis and diseases of autoimmune or related origin
Abstract:
Medical records of three series of clinically probable multiple sclerosis (MS), consisting of 54, 180 and 51 patients, were screened for past or present coexisted disorders in which autoimmune mechanisms are believed to play a role. The comparison showed that idiopathic optic neuritis and chronic retinitis juxtapapillaris were significantly more frequent among MS patients than in control populations. One case of severe periphlebitis retinae and another one of myasthenia gravis-like syndrome were also encountered in MS population but lacked comparable control groups. This is consistent with data suggesting that MS was associated so far with four autoimmune disorders. They either possibly shared with MS common etiopathogenesis (idiopathic optic neuritis, peripheral demyelinating neuropathy), formed extending component of the perivenous inflammatory process (periphlebitis retinae) or belonged to the HLA linkage group (hypocomplementaemia C3).
Insights
Multiple sclerosis (MS) patients show higher rates of coexisting autoimmune disorders, including idiopathic optic neuritis and chronic retinitis juxtapapillaris. These findings suggest potential shared etiopathogenesis or inflammatory links between MS and other autoimmune conditions.
Area of Science:
- Neuroimmunology
- Ophthalmology
- Autoimmune Diseases
Background:
- Multiple sclerosis (MS) is a chronic autoimmune disease affecting the central nervous system.
- The association between MS and other autoimmune disorders is an area of ongoing research.
- Understanding coexisting conditions can provide insights into MS pathogenesis.
Purpose of the Study:
- To investigate the prevalence of autoimmune disorders in patients with clinically probable multiple sclerosis.
- To identify specific autoimmune conditions that are significantly more frequent in MS patients compared to control populations.
- To explore potential shared etiopathogenesis or inflammatory pathways between MS and other autoimmune diseases.
Main Methods:
- Retrospective screening of medical records from three independent series of MS patients (totaling 285 individuals).
- Comparison of the frequency of coexisting autoimmune disorders in MS patients versus control populations.
- Identification of specific autoimmune conditions, including idiopathic optic neuritis and chronic retinitis juxtapapillaris.
Main Results:
- Idiopathic optic neuritis and chronic retinitis juxtapapillaris were found to be significantly more frequent in MS patients.
- Cases of severe periphlebitis retinae and myasthenia gravis-like syndrome were observed in the MS cohort.
- These findings align with existing data suggesting associations between MS and at least four autoimmune disorders.
Conclusions:
- MS is associated with a higher incidence of certain autoimmune disorders, suggesting shared underlying mechanisms.
- Conditions like idiopathic optic neuritis and peripheral demyelinating neuropathy may share common etiopathogenesis with MS.
- Periphlebitis retinae might represent an extension of the perivenous inflammatory process seen in MS.