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@article{Anand:2017:10.3389/fneur.2017.00514,
author = {Anand, P and Privitera, R and Yiangou, Y and Donatien, P and Birch, R and Misra, P},
doi = {10.3389/fneur.2017.00514},
journal = {Frontiers in Neurology},
title = {Trench Foot or Non-Freezing Cold Injury As a Painful Vaso-Neuropathy: Clinical and Skin Biopsy Assessments.},
url = {http://dx.doi.org/10.3389/fneur.2017.00514},
volume = {8},
year = {2017}
}

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TY  - JOUR
AB  - BACKGROUND: Trench foot, or non-freezing cold injury (NFCI), results from cold exposure of sufficient severity and duration above freezing point, with consequent sensory and vascular abnormalities which may persist for years. Based on observations of Trench foot in World War II, the condition was described as a vaso-neuropathy. While some reports have documented nerve damage after extreme cold exposure, sensory nerve fibres and vasculature have not been assessed with recent techniques in NFCI. OBJECTIVE: To assess patients with chronic sensory symptoms following cold exposure, in order to diagnose any underlying small fibre neuropathy, and provide insight into mechanisms of the persistent pain and cold hypersensitivity. METHODS: Thirty soldiers with cold exposure and persistent sensory symptoms (>4 months) were assessed with quantitative sensory testing, nerve conduction studies, and skin biopsies. Immunohistochemistry was used to assess intraepidermal (IENF) and subepidermal (SENF) nerve fibres with a range of markers, including the pan-neuronal marker protein gene product 9.5 (PGP 9.5), regenerating fibres with growth-associated protein 43 (GAP43), and nociceptor fibres with transient receptor potential cation channel subfamily V member 1 (TRPV1), sensory neuron-specific receptor (SNSR), and calcitonin gene-related peptide (CGRP). von Willebrand factor (vWF), endothelial nitric oxide synthase (eNOS), and vascular endothelial growth factor (VEGF) were used for assessing blood vessels, and transient receptor potential cation channel, subfamily A member 1 (TRPA1) and P2X purinoceptor 7 (P2X7) for keratinocytes, which regulate nociceptors via release of nerve growth factor. RESULTS: Clinical examination showed pinprick sensation was abnormal in the feet of 20 patients (67%), and between 67 and 83% had abnormalities of thermal thresholds to the different modalities. 7 patients (23%) showed reduced sensory action potential amplitude of plantar nerves. 27 patie
AU  - Anand,P
AU  - Privitera,R
AU  - Yiangou,Y
AU  - Donatien,P
AU  - Birch,R
AU  - Misra,P
DO  - 10.3389/fneur.2017.00514
PY  - 2017///
SN  - 1664-2295
TI  - Trench Foot or Non-Freezing Cold Injury As a Painful Vaso-Neuropathy: Clinical and Skin Biopsy Assessments.
T2  - Frontiers in Neurology
UR  - http://dx.doi.org/10.3389/fneur.2017.00514
UR  - http://hdl.handle.net/10044/1/51805
VL  - 8
ER  -

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