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Painful diabetic neuropathy. A morphometric study.

M J Brown, J R Martin, A K Asbury

Archives of Neurology

|March 1, 1976

Summary

This summary is machine-generated.

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Diabetic neuropathy often involves painful small nerve fibers. This study shows that these painful small-fiber neuropathies in diabetes are axonal disorders, impacting unmyelinated and small myelinated nerve fibers.

Area of Science:

Neurology
Diabetology
Pathology

Background:

Diabetic neuropathy presents with diverse clinical manifestations.
Understanding the specific nerve fiber involvement is crucial for diagnosis and treatment.

Observation:

Three diabetic patients exhibited neuropathy with pain, hypesthesia, and autonomic dysfunction.
Epicritic sensation and muscle-stretch reflexes were preserved.
Sural nerve biopsies were analyzed using light and electron microscopy.

Findings:

Significant alterations were observed in unmyelinated and small myelinated nerve fibers.
Evidence of unmyelinated nerve fiber sprouting was noted.
Clinical symptoms correlated with pathological findings in cutaneous nerve biopsies.

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Implications:

The findings suggest that painful diabetic neuropathy primarily affects small nerve fibers.
This condition appears to be an axonal disorder.
These insights can guide future research and therapeutic strategies for diabetic neuropathy.