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Terminal H-reflex Measurements in Mice

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Evidence for immune system involvement in reflex sympathetic dystrophy

J S Calder¹, I Holten, R M McAllister

¹Blond-McIndoe Research Centre, Queen Victoria Hospital, East Grinstead, UK.

Journal of Hand Surgery (Edinburgh, Scotland)

|June 2, 1998

Summary

Numerous Langerhans cells were found in the skin epidermis of patients with reflex sympathetic dystrophy (RSD). This finding may offer new insights into the condition

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Area of Science:

Immunohistochemistry
Dermatology
Neurology

Background:

Reflex sympathetic dystrophy (RSD), now known as complex regional pain syndrome (CRPS), is a chronic pain condition.
The underlying pathophysiology of CRPS remains incompletely understood.
Investigating cellular markers in affected tissues may reveal novel insights.

Observation:

Skin biopsies from CRPS patients were analyzed using various immunostaining techniques.
S100 staining revealed an unexpected abundance of Langerhans cells in the epidermis.
All participating patients reported severe pain and treatment-resistant symptoms at the time of biopsy.

Findings:

A significant increase in epidermal Langerhans cells was observed in CRPS patients.
Langerhans cells are antigen-presenting cells of the immune system.
The presence of these cells suggests a potential immune involvement in CRPS pathogenesis.

Implications:

The increased Langerhans cell presence may indicate an inflammatory or immune-mediated component of CRPS.
Further research is warranted to explore the role of these cells in CRPS pain mechanisms.
This finding could potentially lead to new diagnostic or therapeutic strategies for CRPS.