PMID- 25262910 OWN - NLM STAT- MEDLINE DCOM- 20150821 LR - 20200106 IS - 1873-474X (Electronic) IS - 0736-5748 (Linking) VI - 38 DP - 2014 Nov TI - Neonatal hypoxic-ischemic encephalopathy reduces c-Fos activation in the rat hippocampus: evidence of a long-lasting effect. PG - 213-22 LID - S0736-5748(14)00163-4 [pii] LID - 10.1016/j.ijdevneu.2014.09.003 [doi] AB - The effect of neonatal hypoxic-ischemic encephalopathy (HIE) on maturation of nociceptive pathways has been sparsely explored. To investigate whether neonatal HIE alters neuronal activity, nociceptive behavior, and serum neuroplasticity mediators (brain-derived neurotrophic factor [BDNF] and tumor necrosis factor-alpha [TNF]) in the short, medium, and long term. Neonate male Wistar rats were randomized to receive a brain insult that could be either ischemic (left carotid artery ligation [LCAL]), hypoxic (8% oxygen chamber), hypoxic-ischemic (LCAL and hypoxic chamber), sham-ischemic, or sham-hypoxic. Neuronal activity (c-Fos activation at region CA1 and dentate gyrus of the hippocampus), nociceptive behavior (von Frey, tail-flick, and hot-plate tests), neuroplasticity mediators (BDNF, TNF), and a cellular injury marker (lactase dehydrogenase [LDH]) were assessed in blood serum 14, 30, and 60 days after birth. Neonatal HIE persistently reduced c-Fos activation in the ipsilateral hippocampal region CA1; however, contralateral c-Fos reduction appeared only 7 weeks after the event. Neonatal HIE acutely reduced the paw withdrawal threshold (von Frey test), but this returned to normal by the 30th postnatal day. Hypoxia reduced serum LDH levels. Serum neuroplasticity mediators increased with age, and neonatal HIE did not affect their ontogeny. Neonatal HIE-induced reduction in neuronal activity occurs acutely in the ipsilateral hippocampal region CA1 and persists for at least 60 days, but the contralateral effect of the insult is delayed. Alterations in the nociceptive response are acute and self-limited. Serum neuroplasticity mediators increase with age, and remain unaffected by HIE. CI - Copyright (c) 2014. Published by Elsevier Ltd. FAU - Souza, Andressa AU - Souza A AD - Graduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, 90035-003, Porto Alegre, Brazil; Pain Pharmacology and Animal Models of Neuromodulation Laboratory, Department of Pharmacology, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, 90050-170, Porto Alegre, Brazil; Animal Experimentation Unit, Hospital de Clinicas de Porto Alegre Graduate Research Group, 90035-003, Porto Alegre, Brazil; Graduate Program in Health and Human Development, Centro Universitario Unilasalle, 92010-000, Canoas, Brazil. FAU - Dussan-Sarria, Jairo Alberto AU - Dussan-Sarria JA AD - Graduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, 90035-003, Porto Alegre, Brazil. FAU - Medeiros, Liciane Fernandes AU - Medeiros LF AD - Graduate Program in Biological Sciences: Physiology, Universidade Federal do Rio Grande do Sul, 90035-003, Porto Alegre, Brazil; Pain Pharmacology and Animal Models of Neuromodulation Laboratory, Department of Pharmacology, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, 90050-170, Porto Alegre, Brazil; Animal Experimentation Unit, Hospital de Clinicas de Porto Alegre Graduate Research Group, 90035-003, Porto Alegre, Brazil. FAU - Souza, Ana Claudia AU - Souza AC AD - Graduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, 90035-003, Porto Alegre, Brazil; Pain Pharmacology and Animal Models of Neuromodulation Laboratory, Department of Pharmacology, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, 90050-170, Porto Alegre, Brazil; Animal Experimentation Unit, Hospital de Clinicas de Porto Alegre Graduate Research Group, 90035-003, Porto Alegre, Brazil. FAU - Oliveira, Carla AU - Oliveira C AD - Graduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, 90035-003, Porto Alegre, Brazil; Pain Pharmacology and Animal Models of Neuromodulation Laboratory, Department of Pharmacology, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, 90050-170, Porto Alegre, Brazil; Animal Experimentation Unit, Hospital de Clinicas de Porto Alegre Graduate Research Group, 90035-003, Porto Alegre, Brazil. FAU - Scarabelot, Vanessa Leal AU - Scarabelot VL AD - Graduate Program in Biological Sciences: Physiology, Universidade Federal do Rio Grande do Sul, 90035-003, Porto Alegre, Brazil; Pain Pharmacology and Animal Models of Neuromodulation Laboratory, Department of Pharmacology, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, 90050-170, Porto Alegre, Brazil; Animal Experimentation Unit, Hospital de Clinicas de Porto Alegre Graduate Research Group, 90035-003, Porto Alegre, Brazil. FAU - Adachi, Lauren Naomi AU - Adachi LN AD - Graduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, 90035-003, Porto Alegre, Brazil; Pain Pharmacology and Animal Models of Neuromodulation Laboratory, Department of Pharmacology, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, 90050-170, Porto Alegre, Brazil; Animal Experimentation Unit, Hospital de Clinicas de Porto Alegre Graduate Research Group, 90035-003, Porto Alegre, Brazil. FAU - Winkelmann-Duarte, Elisa Cristiana AU - Winkelmann-Duarte EC AD - Department of Morphological Sciences, Universidade Federal de Santa Catarina, 88040-900, Florianopolis, Brazil. FAU - Philippi-Martins, Barbara Beatriz AU - Philippi-Martins BB AD - Department of Morphological Sciences, Universidade Federal de Santa Catarina, 88040-900, Florianopolis, Brazil. FAU - Netto, Carlos Alexandre AU - Netto CA AD - Pain Pharmacology and Animal Models of Neuromodulation Laboratory, Department of Pharmacology, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, 90050-170, Porto Alegre, Brazil. FAU - Caumo, Wolnei AU - Caumo W AD - Graduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, 90035-003, Porto Alegre, Brazil. FAU - Torres, Iraci L S AU - Torres IL AD - Graduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, 90035-003, Porto Alegre, Brazil; Graduate Program in Biological Sciences: Physiology, Universidade Federal do Rio Grande do Sul, 90035-003, Porto Alegre, Brazil; Pain Pharmacology and Animal Models of Neuromodulation Laboratory, Department of Pharmacology, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, 90050-170, Porto Alegre, Brazil; Animal Experimentation Unit, Hospital de Clinicas de Porto Alegre Graduate Research Group, 90035-003, Porto Alegre, Brazil. Electronic address: iracitorres@gmail.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140927 PL - United States TA - Int J Dev Neurosci JT - International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience JID - 8401784 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Proto-Oncogene Proteins c-fos) RN - 0 (Tumor Necrosis Factor-alpha) RN - EC 1.1.1.27 (L-Lactate Dehydrogenase) SB - IM MH - Age Factors MH - Animals MH - Animals, Newborn MH - Body Weight/physiology MH - Brain-Derived Neurotrophic Factor/blood MH - Disease Models, Animal MH - Gene Expression Regulation, Developmental/*physiology MH - Hippocampus/*metabolism MH - Hypoxia-Ischemia, Brain/blood/complications/*pathology MH - L-Lactate Dehydrogenase/metabolism MH - Male MH - Pain Measurement MH - Proto-Oncogene Proteins c-fos/*metabolism MH - Rats MH - Rats, Wistar MH - Reaction Time MH - Tumor Necrosis Factor-alpha/blood OTO - NOTNLM OT - BDNF OT - Neonatal hypoxia-ischemia encephalopathy OT - Nociceptive behavior OT - TNF-alpha OT - c-Fos protein EDAT- 2014/09/30 06:00 MHDA- 2015/08/22 06:00 CRDT- 2014/09/30 06:00 PHST- 2014/06/22 00:00 [received] PHST- 2014/09/13 00:00 [revised] PHST- 2014/09/16 00:00 [accepted] PHST- 2014/09/30 06:00 [entrez] PHST- 2014/09/30 06:00 [pubmed] PHST- 2015/08/22 06:00 [medline] AID - S0736-5748(14)00163-4 [pii] AID - 10.1016/j.ijdevneu.2014.09.003 [doi] PST - ppublish SO - Int J Dev Neurosci. 2014 Nov;38:213-22. doi: 10.1016/j.ijdevneu.2014.09.003. Epub 2014 Sep 27.