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Anti-acetylcholine receptor antibody in aged individuals and in patients with Down's syndrome
Insights
Autoantibodies targeting acetylcholine receptors (AChR) are more prevalent in elderly patients with cerebrovascular disease and individuals with Down syndrome. These findings suggest a link between anti-AChR antibodies, aging, and specific neurological conditions.
Area of Science:
- Neurology
- Immunology
- Geriatrics
Background:
- Autoantibodies, including anti-acetylcholine receptor (AChR) antibodies, are implicated in various autoimmune and neurological disorders.
- Cerebrovascular disease (CVD) and Down syndrome are conditions that may be influenced by immune system dysregulation.
Purpose of the Study:
- To investigate the prevalence of anti-AChR antibodies in elderly patients with CVD and in patients with Down syndrome.
- To explore potential associations between anti-AChR antibodies, age, and these specific patient groups.
Main Methods:
- Sera from patients with CVD (old and young) and patients with Down syndrome were tested for the presence of anti-AChR antibodies.
- Positive rates and antibody titers were analyzed in relation to patient age and diagnosis.
Main Results:
- Anti-AChR antibodies were detected in 9 of 50 sera from elderly CVD patients and 9 of 38 sera from Down syndrome patients.
- Only one serum from 30 young CVD patients tested positive for anti-AChR antibodies.
- Age-related increases in anti-AChR antibody prevalence and titers were observed in the Down syndrome cohort.
Conclusions:
- The presence of anti-AChR antibodies is associated with aging.
- Anti-AChR antibodies may play a role in the pathophysiology of cerebrovascular disease in the elderly and in individuals with Down syndrome.
Abstract:
Anti-acetylcholine receptor (AChR) antibodies were found in 9 of 50 sera from old patients with cerebrovascular disease (CVD) and in 9 of 38 sera from patients with Down's syndrome. Only one of 30 sera from young patients with CVD was positive. There were age-related changes in the positive rate and titers among Down's syndrome subjects. Anti-AChR antibody appeared associated with aging as did other autoantibodies.