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Antibody Transfection into Neurons as a Tool to Study Disease Pathogenesis
Published on: September 26, 2012
[Acetylcholine receptor antibody in D-penicillamine therapy]
Abstract:
Since 1978 a 63-year-old woman with rheumatoid arthritis received D-penicillamine (D-PA) in a daily dose of 250-500 mg (mean 300 mg/d). In 1982 the patient complained of diplopia for several days, the ophthalmological and neurological examinations three days later were normal. In July 1983 she developed a myasthenic syndrome, D-PA was stopped and treatment with mestinon was started. At this time anti-acetylcholine-receptor-antibodies (anti-AChR) were detectable in the patient's serum. The examination of sera stored at -80 degrees C since 1978 revealed anti-AChR existing since 1981 -1 1/2 years, however, before the temporary diplopia. Therefore in 13 other patients receiving D-PA for more than one year anti-AChR were examined. In two of these patients anti-AChR were found. The electroneurological tests were (still?) normal. The question arises whether anti-AChR should be measured routinely in patients with D-PA.
Insights
D-penicillamine (D-PA) treatment can lead to myasthenic syndrome by triggering anti-acetylcholine-receptor-antibodies (anti-AChR). Routine monitoring for anti-AChR in patients on D-PA may be warranted.
Area of Science:
- Rheumatology
- Neurology
- Immunology
Background:
- Rheumatoid arthritis patients often receive D-penicillamine (D-PA) for long-term management.
- D-penicillamine is known to have various side effects, necessitating careful patient monitoring.
Observation:
- A patient on D-PA developed transient diplopia, followed by a myasthenic syndrome.
- Anti-acetylcholine-receptor-antibodies (anti-AChR) were detected in the patient's serum, with evidence suggesting their presence predated clinical symptoms.
Findings:
- Anti-acetylcholine-receptor-antibodies (anti-AChR) were found in two out of 13 other rheumatoid arthritis patients receiving D-PA.
- Electroneurological tests in these patients were normal, despite the presence of anti-AChR.
Implications:
- The findings suggest a potential link between D-penicillamine use and the development of anti-acetylcholine-receptor-antibodies (anti-AChR).
- Routine screening for anti-AChR in patients undergoing long-term D-PA therapy might be beneficial for early detection and prevention of potential neurological complications.
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