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[Autonomic nerve disorders in generalized amyloidosis]
Nihon Rinsho. Japanese Journal of Clinical Medicine
|April 1, 1992
Summary
Familial amyloid polyneuropathy (FAP) often causes autonomic dysfunction, including orthostatic hypotension and bowel issues due to amyloid buildup in nerves. L-threo-3,4-dihydroxyphenylserine shows promise in treating these FAP-related autonomic symptoms.
Area of Science:
- Neurology
- Pathology
- Pharmacology
Context:
- Systemic amyloidosis, particularly familial amyloid polyneuropathy (FAP), frequently presents with diverse autonomic disturbances.
- Autonomic symptoms significantly impact patient quality of life and disease progression in FAP.
Purpose:
- To summarize the clinicopathological features of autonomic symptoms in familial amyloid polyneuropathy.
- To investigate the underlying neuropathological changes responsible for these autonomic dysfunctions.
- To evaluate the therapeutic potential of L-threo-3,4-dihydroxyphenylserine for autonomic symptoms in FAP.
Summary:
- Orthostatic hypotension and bowel dysfunctions are identified as the primary autonomic manifestations in FAP.
- Autopsy findings reveal extensive amyloid deposition in the peripheral autonomic nervous system, including sympathetic ganglia.
- Characteristic gastrointestinal pathology includes depletion of extrinsic nerves with preserved intrinsic nerves, contributing to peculiar bowel disorders.
Impact:
- Understanding the clinicopathological basis of autonomic dysfunction in FAP is crucial for diagnosis and management.
- The findings highlight the role of specific nerve damage patterns in FAP-related gastrointestinal issues.
- Oral L-threo-3,4-dihydroxyphenylserine demonstrates efficacy in managing autonomic symptoms, offering a potential treatment avenue for FAP patients.