PMID- 26470786 OWN - NLM STAT- MEDLINE DCOM- 20160428 LR - 20211006 IS - 1939-327X (Electronic) IS - 0012-1797 (Linking) VI - 65 IP - 1 DP - 2016 Jan TI - Metabolic Dysfunction Is Restricted to the Sciatic Nerve in Experimental Diabetic Neuropathy. PG - 228-38 LID - 10.2337/db15-0835 [doi] AB - High glucose levels in the peripheral nervous system (PNS) have been implicated in the pathogenesis of diabetic neuropathy (DN). However, our understanding of the molecular mechanisms that cause the marked distal pathology is incomplete. We performed a comprehensive, system-wide analysis of the PNS of a rodent model of DN. We integrated proteomics and metabolomics from the sciatic nerve (SN), the lumbar 4/5 dorsal root ganglia (DRG), and the trigeminal ganglia (TG) of streptozotocin-diabetic and healthy control rats. Even though all tissues showed a dramatic increase in glucose and polyol pathway intermediates in diabetes, a striking upregulation of mitochondrial oxidative phosphorylation and perturbation of lipid metabolism was found in the distal SN that was not present in the corresponding cell bodies of the DRG or the cranial TG. This finding suggests that the most severe molecular consequences of diabetes in the nervous system present in the SN, the region most affected by neuropathy. Such spatial metabolic dysfunction suggests a failure of energy homeostasis and/or oxidative stress, specifically in the distal axon/Schwann cell-rich SN. These data provide a detailed molecular description of the distinct compartmental effects of diabetes on the PNS that could underlie the distal-proximal distribution of pathology. CI - (c) 2016 by the American Diabetes Association. 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FAU - Freeman, Oliver J AU - Freeman OJ AUID- ORCID: 0000-0003-4009-282X AD - Faculty of Life Sciences, The University of Manchester, Manchester, U.K. Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, U.K. FAU - Unwin, Richard D AU - Unwin RD AD - Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, U.K. Centre for Endocrinology and Diabetes, Institute of Human Development, Faculty of Medical and Human Sciences, The University of Manchester, Manchester, U.K. FAU - Dowsey, Andrew W AU - Dowsey AW AD - Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, U.K. Centre for Endocrinology and Diabetes, Institute of Human Development, Faculty of Medical and Human Sciences, The University of Manchester, Manchester, U.K. FAU - Begley, Paul AU - Begley P AD - Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, U.K. Centre for Endocrinology and Diabetes, Institute of Human Development, Faculty of Medical and Human Sciences, The University of Manchester, Manchester, U.K. FAU - Ali, Sumia AU - Ali S AD - Faculty of Life Sciences, The University of Manchester, Manchester, U.K. FAU - Hollywood, Katherine A AU - Hollywood KA AD - Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, U.K. Centre for Endocrinology and Diabetes, Institute of Human Development, Faculty of Medical and Human Sciences, The University of Manchester, Manchester, U.K. FAU - Rustogi, Nitin AU - Rustogi N AD - Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, U.K. Centre for Endocrinology and Diabetes, Institute of Human Development, Faculty of Medical and Human Sciences, The University of Manchester, Manchester, U.K. FAU - Petersen, Rasmus S AU - Petersen RS AD - Faculty of Life Sciences, The University of Manchester, Manchester, U.K. FAU - Dunn, Warwick B AU - Dunn WB AD - Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, U.K. Centre for Endocrinology and Diabetes, Institute of Human Development, Faculty of Medical and Human Sciences, The University of Manchester, Manchester, U.K. FAU - Cooper, Garth J S AU - Cooper GJ AD - Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, U.K. Centre for Endocrinology and Diabetes, Institute of Human Development, Faculty of Medical and Human Sciences, The University of Manchester, Manchester, U.K. School of Biological Sciences, The University of Auckland, Auckland, New Zealand Department of Pharmacology, Medical Sciences Division, University of Oxford, Oxford, U.K. natalie.gardiner@manchester.ac.uk garth.cooper@manchester.ac.uk. FAU - Gardiner, Natalie J AU - Gardiner NJ AD - Faculty of Life Sciences, The University of Manchester, Manchester, U.K. natalie.gardiner@manchester.ac.uk garth.cooper@manchester.ac.uk. LA - eng GR - 097820/Z/11/B/WT_/Wellcome Trust/United Kingdom GR - MR/L011093/2/MRC_/Medical Research Council/United Kingdom GR - MR/L01064X/1/MRC_/Medical Research Council/United Kingdom GR - MR/L011093/1/MRC_/Medical Research Council/United Kingdom GR - MR/L011093/3/MRC_/Medical Research Council/United Kingdom GR - G1001609/MR/J500410/1/MRC_/Medical Research Council/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20151015 PL - United States TA - Diabetes JT - Diabetes JID - 0372763 RN - 0 (Polymers) RN - 0 (acylcarnitine) RN - 0 (polyol) RN - 1VS4X81277 (scyllitol) RN - 30237-26-4 (Fructose) RN - 4L6452S749 (Inositol) RN - 506T60A25R (Sorbitol) RN - IY9XDZ35W2 (Glucose) RN - S7UI8SM58A (Carnitine) SB - IM MH - Animals MH - Carnitine/analogs & derivatives/metabolism MH - Diabetes Mellitus, Experimental/complications/*metabolism MH - Diabetic Neuropathies/etiology/*metabolism MH - Disease Models, Animal MH - Energy Metabolism MH - Fructose/metabolism MH - Ganglia, Spinal/*metabolism MH - Glucose/*metabolism MH - Homeostasis MH - Inositol/metabolism MH - Lipid Metabolism MH - Lumbar Vertebrae MH - Metabolomics MH - Mitochondria/*metabolism MH - Neural Conduction MH - Oxidative Phosphorylation MH - Oxidative Stress MH - Polymers/metabolism MH - Rats MH - Rats, Sprague-Dawley MH - Sciatic Nerve/*metabolism MH - Sorbitol/metabolism MH - Trigeminal Ganglion/*metabolism EDAT- 2015/10/17 06:00 MHDA- 2016/04/29 06:00 CRDT- 2015/10/17 06:00 PHST- 2015/06/17 00:00 [received] PHST- 2015/10/07 00:00 [accepted] PHST- 2015/10/17 06:00 [entrez] PHST- 2015/10/17 06:00 [pubmed] PHST- 2016/04/29 06:00 [medline] AID - db15-0835 [pii] AID - 10.2337/db15-0835 [doi] PST - ppublish SO - Diabetes. 2016 Jan;65(1):228-38. doi: 10.2337/db15-0835. Epub 2015 Oct 15.