PMID- 29648986 OWN - NLM STAT- MEDLINE DCOM- 20191111 LR - 20191111 IS - 1557-9042 (Electronic) IS - 0897-7151 (Print) IS - 0897-7151 (Linking) VI - 35 IP - 17 DP - 2018 Sep 1 TI - A Single Primary Blast-Induced Traumatic Brain Injury in a Rodent Model Causes Cell-Type Dependent Increase in Nicotinamide Adenine Dinucleotide Phosphate Oxidase Isoforms in Vulnerable Brain Regions. PG - 2077-2090 LID - 10.1089/neu.2017.5358 [doi] AB - Blast-induced traumatic brain injury (bTBI) is a leading cause of morbidity in soldiers on the battlefield and in training sites with long-term neurological and psychological pathologies. Previous studies from our laboratory demonstrated activation of oxidative stress pathways after blast injury, but their distribution among different brain regions and their impact on the pathogenesis of bTBI have not been explored. The present study examined the protein expression of two isoforms: nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 1 and 2 (NOX1, NOX2), corresponding superoxide production, a downstream event of NOX activation, and the extent of lipid peroxidation adducts of 4-hydroxynonenal (4HNE) to a range of proteins. Brain injury was evaluated 4 h after the shock-wave exposure, and immunofluorescence signal quantification was performed in different brain regions. Expression of NOX isoforms displayed a differential increase in various brain regions: in hippocampus and thalamus, there was the highest increase of NOX1, whereas in the frontal cortex, there was the highest increase of NOX2 expression. Cell-specific analysis of changes in NOX expression with respect to corresponding controls revealed that blast resulted in a higher increase of NOX1 and NOX 2 levels in neurons compared with astrocytes and microglia. Blast exposure also resulted in increased superoxide levels in different brain regions, and such changes were reflected in 4HNE protein adduct formation. Collectively, this study demonstrates that primary blast TBI induces upregulation of NADPH oxidase isoforms in different regions of the brain parenchyma and that neurons appear to be at higher risk for oxidative damage compared with other neural cells. FAU - Rama Rao, Kakulavarapu V AU - Rama Rao KV AD - 1 Center for Injury Biomechanics, Materials, and Medicine, Department of Biomedical Engineering, New Jersey Institute of Technology , Newark, New Jersey. FAU - Iring, Stephanie AU - Iring S AD - 1 Center for Injury Biomechanics, Materials, and Medicine, Department of Biomedical Engineering, New Jersey Institute of Technology , Newark, New Jersey. FAU - Younger, Daniel AU - Younger D AD - 1 Center for Injury Biomechanics, Materials, and Medicine, Department of Biomedical Engineering, New Jersey Institute of Technology , Newark, New Jersey. FAU - Kuriakose, Matthew AU - Kuriakose M AD - 1 Center for Injury Biomechanics, Materials, and Medicine, Department of Biomedical Engineering, New Jersey Institute of Technology , Newark, New Jersey. FAU - Skotak, Maciej AU - Skotak M AD - 1 Center for Injury Biomechanics, Materials, and Medicine, Department of Biomedical Engineering, New Jersey Institute of Technology , Newark, New Jersey. FAU - Alay, Eren AU - Alay E AD - 1 Center for Injury Biomechanics, Materials, and Medicine, Department of Biomedical Engineering, New Jersey Institute of Technology , Newark, New Jersey. FAU - Gupta, Raj K AU - Gupta RK AD - 2 Department of Defense Blast Injury Research Program Coordinating Office, United States Army Medical Research and Materiel Command , Fort Detrick, Maryland. FAU - Chandra, Namas AU - Chandra N AD - 1 Center for Injury Biomechanics, Materials, and Medicine, Department of Biomedical Engineering, New Jersey Institute of Technology , Newark, New Jersey. LA - eng PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20180612 PL - United States TA - J Neurotrauma JT - Journal of neurotrauma JID - 8811626 RN - 0 (Isoenzymes) RN - 11062-77-4 (Superoxides) RN - EC 1.6.3.- (Cybb protein, rat) RN - EC 1.6.3.- (NADPH Oxidase 1) RN - EC 1.6.3.- (NADPH Oxidase 2) RN - EC 1.6.3.- (NADPH Oxidases) RN - EC 1.6.3.- (NOX1 protein, rat) SB - IM MH - Animals MH - Astrocytes/metabolism MH - Blast Injuries/*metabolism MH - Brain Chemistry MH - Brain Injuries, Traumatic/*metabolism MH - Cerebellum/metabolism MH - Hippocampus/metabolism MH - Isoenzymes MH - Lipid Peroxidation MH - Male MH - NADPH Oxidase 1/biosynthesis/genetics MH - NADPH Oxidase 2/biosynthesis/genetics MH - NADPH Oxidases/*biosynthesis MH - Neurons/metabolism MH - Rats MH - Rats, Sprague-Dawley MH - Superoxides/metabolism MH - Thalamus/metabolism PMC - PMC6098412 OTO - NOTNLM OT - 4-hydroxynonenal OT - NADPH oxidase OT - astrocytes OT - blast injury OT - microglia OT - neuron OT - oxidative stress OT - traumatic brain injury COIS- No competing financial interests exist. EDAT- 2018/04/13 06:00 MHDA- 2019/11/12 06:00 PMCR- 2018/09/01 CRDT- 2018/04/13 06:00 PHST- 2018/04/13 06:00 [pubmed] PHST- 2019/11/12 06:00 [medline] PHST- 2018/04/13 06:00 [entrez] PHST- 2018/09/01 00:00 [pmc-release] AID - 10.1089/neu.2017.5358 [pii] AID - 10.1089/neu.2017.5358 [doi] PST - ppublish SO - J Neurotrauma. 2018 Sep 1;35(17):2077-2090. doi: 10.1089/neu.2017.5358. Epub 2018 Jun 12.