Neuropathological alterations in diabetic truncal neuropathy: Evaluation by skin biopsy

Giuseppe Lauria, Justin C. McArthur, Peter E. Hauer, John W. Griffin, David R. Cornblath

Research output: Contribution to journalArticle

80 Citations (Scopus)

Abstract

Objectives - To describe the neuropathological features in skin biopsies from patients with diabetic truncal neuropathy. Methods - Three patients with diabetic truncal neuropathy underwent skin biopsies from both symptomatic and asymptomatic regions of the chest and trunk. After local anaesthesia, biopsies were performed using a 3 mm diameter punch device (Acupunch). Intraepidermal nerve fibres (IENFs), the most distal processes of small myelinated and unmyelinated nerve fibres, were identified after staining with PGP 9.5 as previously described. Results - Diabetes was diagnosed at the time of the neurological presentation in two, and one was a known diabetic patient. All three had associated sensory-motor polyneuropathy. In all, skin biopsies showed a marked reduction of both epidermal and dermal nerve fibres in the symptomatic dermatomes, compared with skin from asymptomatic truncal areas. In one patient, a follow up skin biopsy when symptoms had improved showed a return of IENFs. Conclusions - In diabetic truncal neuropathy, skin biopsies from symptomatic regions show a loss of IENFs. After clinical recovery, there is a return of the IENF population, suggesting that improvement occurs by nerve regeneration. These findings suggest that sensory nerve fibre injury in diabetic truncal neuropathy is distal to or within the sensory ganglia. Skin biopsy provides a possible tool for understanding the pathophysiology of the disease.

Original languageEnglish
Pages (from-to)762-766
Number of pages5
JournalJournal of Neurology, Neurosurgery and Psychiatry
Volume65
Issue number5
Publication statusPublished - Nov 1998

Fingerprint

Diabetic Neuropathies
Nerve Fibers
Biopsy
Skin
Sensory Ganglia
Myelinated Nerve Fibers
Unmyelinated Nerve Fibers
Nerve Regeneration
Polyneuropathies
Local Anesthesia
Thorax
Staining and Labeling
Equipment and Supplies
Wounds and Injuries

Keywords

  • Diabetes
  • Diabetic truncal neuropathy
  • Neuropathy
  • Skin biopsy

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Neuroscience(all)
  • Psychiatry and Mental health

Cite this

Neuropathological alterations in diabetic truncal neuropathy : Evaluation by skin biopsy. / Lauria, Giuseppe; McArthur, Justin C.; Hauer, Peter E.; Griffin, John W.; Cornblath, David R.

In: Journal of Neurology, Neurosurgery and Psychiatry, Vol. 65, No. 5, 11.1998, p. 762-766.

Research output: Contribution to journalArticle

Lauria, Giuseppe ; McArthur, Justin C. ; Hauer, Peter E. ; Griffin, John W. ; Cornblath, David R. / Neuropathological alterations in diabetic truncal neuropathy : Evaluation by skin biopsy. In: Journal of Neurology, Neurosurgery and Psychiatry. 1998 ; Vol. 65, No. 5. pp. 762-766.
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