PMID- 23850047 OWN - NLM STAT- MEDLINE DCOM- 20140516 LR - 20131009 IS - 1532-2653 (Electronic) IS - 0967-5868 (Linking) VI - 20 IP - 10 DP - 2013 Oct TI - An immunohistochemical study of increased tumor necrosis factor-alpha in the skin of patients with amyotrophic lateral sclerosis. PG - 1371-6 LID - S0967-5868(13)00073-8 [pii] LID - 10.1016/j.jocn.2012.11.007 [doi] AB - Tumor necrosis factor-alpha (TNF-alpha) is a major inflammatory cytokine that elicits a wide range of biological responses and is implicated in the pathogenesis of neurodegenerative diseases. Skin studies from patients with amyotrophic lateral sclerosis (ALS) have shown unique pathological and biochemical abnormalities. The lack of bedsore formation is considered characteristic of ALS. We undertook a quantitative immunohistochemical study of TNF-alpha in the skin from patients with ALS and controls with other neurologic or muscular diseases. Immunohistochemistry for TNF-alpha demonstrated cytoplasmic activity in the epidermis and in some blood vessels and glands. The proportion of TNF-alpha-positive (TNF-alpha+) cells in the epidermis in patients with ALS was significantly higher (p<0.001) than in controls. There was a significant positive relationship (r=0.87, p<0.001) between this proportion and duration of illness in patients with ALS, but there was no such relationship in control subjects. The optical density of TNF-alpha+ cells in the epidermis in patients with ALS was markedly higher (p<0.001) than in controls. There was a significant positive relationship (r=0.70, p<0.001) between the immunoreactivity and duration of illness in patients with ALS. However, there was no such relationship in controls. In addition, there was an appreciable positive correlation (r=0.59, p<0.01) in patients with ALS between the proportion of TNF-alpha+ cells and the optical density of these cells, but with no correlation in controls. These data suggest that changes in TNF-alpha identified in the skin of patients with ALS are likely to be related to the disease process and that metabolic alterations of TNF-alpha may take place in the skin of patients with ALS. CI - Copyright (c) 2013 Elsevier Ltd. All rights reserved. FAU - Fukazawa, Hiroyuki AU - Fukazawa H AD - Department of Neurology, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba 299-0111, Japan. FAU - Tsukie, Tomomi AU - Tsukie T FAU - Higashida, Kazuhiro AU - Higashida K FAU - Fujikura, Mikio AU - Fujikura M FAU - Ono, Seiitsu AU - Ono S LA - eng PT - Journal Article DEP - 20130710 PL - Scotland TA - J Clin Neurosci JT - Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia JID - 9433352 RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Adult MH - Aged MH - Amyotrophic Lateral Sclerosis/*pathology/physiopathology MH - Female MH - Gene Expression Regulation/*physiology MH - Humans MH - Male MH - Middle Aged MH - Skin/*metabolism MH - Statistics as Topic MH - Tumor Necrosis Factor-alpha/*metabolism OTO - NOTNLM OT - Amyotrophic lateral sclerosis OT - Cytokine OT - Epidermis OT - Immunohistochemistry OT - Skin OT - Tumor necrosis factor-alpha EDAT- 2013/07/16 06:00 MHDA- 2014/05/17 06:00 CRDT- 2013/07/16 06:00 PHST- 2012/08/07 00:00 [received] PHST- 2012/11/11 00:00 [revised] PHST- 2012/11/13 00:00 [accepted] PHST- 2013/07/16 06:00 [entrez] PHST- 2013/07/16 06:00 [pubmed] PHST- 2014/05/17 06:00 [medline] AID - S0967-5868(13)00073-8 [pii] AID - 10.1016/j.jocn.2012.11.007 [doi] PST - ppublish SO - J Clin Neurosci. 2013 Oct;20(10):1371-6. doi: 10.1016/j.jocn.2012.11.007. Epub 2013 Jul 10.