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Chen XF, Wu Y, Kim B, Nguyen KV, Chen A, Qiu J, Santoso AR, Disdier C, Lim YP, Stonestreet BS. Neuroprotective efficacy of hypothermia and Inter-alpha Inhibitor Proteins after hypoxic ischemic brain injury in neonatal rats. Neurotherapeutics 2024; 21:e00341. [PMID: 38453562 PMCID: PMC11070713 DOI: 10.1016/j.neurot.2024.e00341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/28/2024] [Accepted: 02/28/2024] [Indexed: 03/09/2024] Open
Abstract
Therapeutic hypothermia is the standard of care for hypoxic-ischemic (HI) encephalopathy. Inter-alpha Inhibitor Proteins (IAIPs) attenuate brain injury after HI in neonatal rats. Human (h) IAIPs (60 mg/kg) or placebo (PL) were given 15 min, 24 and 48 h to postnatal (P) day-7 rats after carotid ligation and 8% oxygen for 90 min with (30 °C) and without (36 °C) exposure to hypothermia 1.5 h after HI for 3 h. Hemispheric volume atrophy (P14) and neurobehavioral tests including righting reflex (P8-P10), small open field (P13-P14), and negative geotaxis (P14) were determined. Hemispheric volume atrophy in males was reduced (P < 0.05) by 41.9% in the normothermic-IAIP and 28.1% in the hypothermic-IAIP compared with the normothermic-PL group, and in females reduced (P < 0.05) by 30.3% in the normothermic-IAIP, 45.7% in hypothermic-PL, and 55.2% in hypothermic-IAIP compared with the normothermic-PL group after HI. Hypothermia improved (P < 0.05) the neuroprotective effects of hIAIPs in females. The neuroprotective efficacy of hIAIPs was comparable to hypothermia in female rats (P = 0.183). Treatment with hIAIPs, hypothermia, and hIAIPs with hypothermia decreased (P < 0.05) the latency to enter the peripheral zone in the small open field test in males. We conclude that hIAIPs provide neuroprotection from HI brain injury that is comparable to the protection by hypothermia, hypothermia increases the effects of hIAIPs in females, and hIAIPs and hypothermia exhibit some sex-related differential effects.
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Affiliation(s)
- Xiaodi F Chen
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA; The Alpert Medical School of Brown University, USA
| | - Yuqi Wu
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA; The Alpert Medical School of Brown University, USA
| | - Boram Kim
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA; The Alpert Medical School of Brown University, USA
| | - Kevin V Nguyen
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA; The Alpert Medical School of Brown University, USA
| | - Ainuo Chen
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA; The Alpert Medical School of Brown University, USA
| | - Joseph Qiu
- ProThera Biologics, Inc., Providence, RI, USA
| | | | - Clemence Disdier
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA; The Alpert Medical School of Brown University, USA
| | - Yow-Pin Lim
- ProThera Biologics, Inc., Providence, RI, USA; The Alpert Medical School of Brown University, Department of Pathology and Laboratory Medicine, Providence, RI, USA
| | - Barbara S Stonestreet
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, USA; The Alpert Medical School of Brown University, USA; Department of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, RI, USA.
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2
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The Early-Life «Programming» of Anxiety-Driven Behaviours in Adulthood as a Product of Predator-Driven Evolution. Evol Biol 2022. [DOI: 10.1007/s11692-022-09571-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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3
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Rocha R, Andrade L, Alves T, Sá S, Pereira PA, Dulce Madeira M, Cardoso A. Behavioral and brain morphological analysis of non-inflammatory and inflammatory rat models of preterm brain injury. Neurobiol Learn Mem 2021; 185:107540. [PMID: 34673263 DOI: 10.1016/j.nlm.2021.107540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 09/21/2021] [Accepted: 10/07/2021] [Indexed: 11/18/2022]
Abstract
Investigations using preclinical models of preterm birth have much contributed, together with human neuropathological studies, for advances in our understanding of preterm brain injury. Here, we evaluated whether the neurodevelopmental and behavioral consequences of preterm birth induced by a non-inflammatory model of preterm birth using mifepristone would differ from those after inflammatory prenatal transient hypoxia-ischemia (TSHI) model. Pregnant Wistar rats were either injected with mifepristone, and pups were delivered on embryonic day 21 (ED21 group), or laparotomized on the 18th day of gestation for 60 min of uterine arteries occlusion. Rat pups were tested postnatally for characterization of developmental milestones and, after weaning, they were behaviorally tested for anxiety and for spatial learning and memory. One month later, brains were processed for quantification of doublecortin (DCX)- and neuropeptide Y (NPY)-immunoreactive cells, and cholinergic varicosities in the hippocampus. ED21 rats did not differ from controls with respect to neonatal developmental milestones, anxiety, learning and memory functions, and neurochemical parameters. Conversely, in TSHI rats the development of neonatal reflexes was delayed, the levels of anxiety were reduced, and spatial learning and memory was impaired; in the hippocampus, the total number of DCX and NPY cells was increased, and the density of cholinergic varicosities was reduced. With these results we suggest that a preterm birth, in a non-inflammatory prenatal environment, does not significantly change neonatal development and adult neurologic outcome. On other hand, prenatal hypoxia and ischemia (inflammation) modifies developmental trajectory, learning and memory, neurogenesis, and NPY GABAergic and cholinergic brain systems.
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Affiliation(s)
- Ruben Rocha
- Department of Biomedicine - Unit of Anatomy, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal; Center of Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Rua Dr. Plácido da Costa, 4200-450 Porto, Portugal; Pediatric Neurology Department, Centro Materno-Infantil do Norte, Centro Hospitalar Universitário do Porto, 4050-651 Porto, Portugal; Pediatric Emergency Department, Centro Hospitalar Universitário S. João, 4200-319 Porto, Portugal
| | - Leonardo Andrade
- Department of Biomedicine - Unit of Anatomy, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
| | - Tânia Alves
- Department of Biomedicine - Unit of Anatomy, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
| | - Susana Sá
- Department of Biomedicine - Unit of Anatomy, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal; Center of Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Rua Dr. Plácido da Costa, 4200-450 Porto, Portugal
| | - Pedro A Pereira
- Department of Biomedicine - Unit of Anatomy, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal; Center of Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Rua Dr. Plácido da Costa, 4200-450 Porto, Portugal
| | - M Dulce Madeira
- Department of Biomedicine - Unit of Anatomy, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal; Center of Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Rua Dr. Plácido da Costa, 4200-450 Porto, Portugal
| | - Armando Cardoso
- Department of Biomedicine - Unit of Anatomy, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal; Center of Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Rua Dr. Plácido da Costa, 4200-450 Porto, Portugal.
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4
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Morin A, Poitras M, Plamondon H. Global cerebral ischemia in adolescent male Long Evans rats: Effects of vanillic acid supplementation on stress response, emotionality, and visuospatial memory. Behav Brain Res 2021; 412:113403. [PMID: 34090940 DOI: 10.1016/j.bbr.2021.113403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 05/12/2021] [Accepted: 06/01/2021] [Indexed: 01/06/2023]
Abstract
The developmental period is critical in delineating plastic response to internal and external events. However, neurobehavioural effects of global cerebral ischemia (GCI) in the maturing brain remain largely unknown. This study characterised the effects of GCI experienced at puberty on adulthood (1) hippocampus CA1 neuronal damage, (2) cognitive and emotional impairments, and (3) glucocorticoid receptor (GR) expression. Effects of adolescent exposure to the phenol vanillic acid (VA) on post-ischemic outcomes were also determined. Male Long Evans rats (n = 35) were supplemented for 21 consecutive days (postnatal days 33-53) with VA (91 mg/kg) or nut paste vehicle (control) prior to a 10-min GCI or sham surgery. As adults, rats were tested in the Open Field Test (OFT), Elevated-Plus Maze (EPM), and Barnes Maze (BM). GR expression was determined in the basolateral amygdala (BLA), CA1, and paraventricular nucleus (PVN), and brain injury assessed via CA1 neuronal density. Adolescent GCI exposure induced extensive hippocampal CA1 injury, which was not prevented by VA supplementation. Behaviourally, GCI increased EPM exploration while having no impact on spatial memory. VA intake increased OFT peripheral exploration. Notably, while no delayed changes in CA1 and PVN GR immunoreactivity were noted, both treatments separately increased BLA GR expression when compared with sham-nut paste rats. Age at GCI occurrence plays a critical role on post-ischemic impairments. The observation of minimal functional impairments despite important CA1 neuronal damage supports use of compensatory mechanisms. Our findings also show daily VA supplementation during adolescence to have no protective effects on post-ischemic outcomes, contrasting adult intake.
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Affiliation(s)
- Alexandre Morin
- Behavioural Neuroscience Group, School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier, Ottawa, Ontario, K1N 6N5, Canada.
| | - Marilou Poitras
- Behavioural Neuroscience Group, School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier, Ottawa, Ontario, K1N 6N5, Canada.
| | - Hélène Plamondon
- Behavioural Neuroscience Group, School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier, Ottawa, Ontario, K1N 6N5, Canada.
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Freddo N, Nardi J, Bertol CD, Dallegrave E, Leal MB, Barreto F, Frizzo IB, Rossato-Grando LG. Isoflavone quantitation in soymilk: Genistein content and its biological effect. CYTA - JOURNAL OF FOOD 2019. [DOI: 10.1080/19476337.2018.1544590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Natália Freddo
- Institute of Biological Sciences, University of Passo Fundo, Passo Fundo, Brazil
| | - Jessica Nardi
- Institute of Biological Sciences, University of Passo Fundo, Passo Fundo, Brazil
| | - Charise Dallazem Bertol
- Institute of Biological Sciences, University of Passo Fundo, Passo Fundo, Brazil
- Post-Graduation Program in Human Aging, University of Passo Fundo, Passo Fundo, Brazil
| | - Eliane Dallegrave
- Department of Pharmacoscience, Federal University of Health Sciences of Porto Alegre, Porto Alegre, Brazil
| | - Mirna B. Leal
- Department of Pharmacology, Institute of Basic Health Science, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Fabiano Barreto
- Department of Pesticide Residues and Veterinary Medicine Analysis, Agriculture and Livestock Laboratory (LANAGRO), Porto Alegre, Rio Grande do Sul, Brazil
| | | | - Luciana Grazziotin Rossato-Grando
- Institute of Biological Sciences, University of Passo Fundo, Passo Fundo, Brazil
- Post-Graduation Program in Bioexperimentation, University of Passo Fundo, Passo Fundo, Brazil
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Holubiec MI, Romero JI, Suárez J, Portavella M, Fernández-Espejo E, Blanco E, Galeano P, de Fonseca FR. Palmitoylethanolamide prevents neuroinflammation, reduces astrogliosis and preserves recognition and spatial memory following induction of neonatal anoxia-ischemia. Psychopharmacology (Berl) 2018; 235:2929-2945. [PMID: 30058012 DOI: 10.1007/s00213-018-4982-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 07/23/2018] [Indexed: 11/27/2022]
Abstract
RATIONAL Neonatal anoxia-ischemia (AI) particularly affects the central nervous system. Despite the many treatments that have been tested, none of them has proven to be completely successful. Palmitoylethanolamide (PEA) and oleoylethanolamide (OEA) are acylethanolamides that do not bind to CB1 or CB2 receptors and thus they do not present cannabinoid activity. These molecules are agonist compounds of peroxisome proliferator-activator receptor alpha (PPARα), which modulates the expression of different genes that are related to glucose and lipid metabolism, inflammation, differentiation and proliferation. OBJECTIVE In the present study, we analyzed the effects that the administration of PEA or OEA, after a neonatal AI event, has over different areas of the hippocampus. METHODS To this end, 7-day-old rats were subjected to AI and then treated with vehicle, OEA (2 or 10 mg/kg) or PEA (2 or 10 mg/kg). At 30 days of age, animals were subjected to behavioral tests followed by immunohistochemical studies. RESULTS Results showed that neonatal AI was associated with decreased locomotion, as well as recognition and spatial memory impairments. Furthermore, these deficits were accompanied with enhanced neuroinflammation and astrogliosis, as well as a decreased PPARα expression. PEA treatment was able to prevent neuroinflammation, reduce astrogliosis and preserve cognitive functions. CONCLUSIONS These results indicate that the acylethanolamide PEA may play an important role in the mechanisms underlying neonatal AI, and it could be a good candidate for further studies regarding neonatal AI treatments.
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Affiliation(s)
- Mariana I Holubiec
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Avenida Carlos Haya 82, 29010, Málaga, Spain
- Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Patricias Argentinas 435, C1405BWE, Ciudad Autónoma de Buenos Aires, Argentina
| | - Juan I Romero
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Avenida Carlos Haya 82, 29010, Málaga, Spain
- Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Patricias Argentinas 435, C1405BWE, Ciudad Autónoma de Buenos Aires, Argentina
| | - Juan Suárez
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Avenida Carlos Haya 82, 29010, Málaga, Spain
| | - Manuel Portavella
- Laboratorio de Conducta Animal y Neurociencia, Departamento de Psicología Experimental, Facultad de Psicología, Universidad de Sevilla, C/Camilo José Cela s/n, 41018, Sevilla, Spain
| | - Emilio Fernández-Espejo
- Laboratorio de Neurofisiología y Neurología Molecular, Departamento de Fisiología Médica y Biofísica, Facultad de Medicina, Universidad de Sevilla, Av. Sánchez Pizjuán 4, 41009, Sevilla, Spain
| | - Eduardo Blanco
- Lleida Institute for Biomedical Research, Dr. Pifarré Foundation (IRBLleida), University of Lleida, Av. Alcalde Rovira Roure 80, 25198, Lleida, Spain
| | - Pablo Galeano
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Avenida Carlos Haya 82, 29010, Málaga, Spain.
- Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Patricias Argentinas 435, C1405BWE, Ciudad Autónoma de Buenos Aires, Argentina.
| | - Fernando Rodríguez de Fonseca
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Avenida Carlos Haya 82, 29010, Málaga, Spain.
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7
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Grandvuillemin I, Garrigue P, Ramdani A, Boubred F, Simeoni U, Dignat-George F, Sabatier F, Guillet B. Long-Term Recovery After Endothelial Colony-Forming Cells or Human Umbilical Cord Blood Cells Administration in a Rat Model of Neonatal Hypoxic-Ischemic Encephalopathy. Stem Cells Transl Med 2017; 6:1987-1996. [PMID: 28980775 PMCID: PMC6430056 DOI: 10.1002/sctm.17-0074] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 07/26/2017] [Indexed: 02/06/2023] Open
Abstract
Neonatal hypoxic‐ischemic encephalopathy (NHIE) is a dramatic perinatal complication, associated with poor neurological prognosis despite neuroprotection by therapeutic hypothermia, in the absence of an available curative therapy. We evaluated and compared ready‐to‐use human umbilical cord blood cells (HUCBC) and bankable but allogeneic endothelial progenitors (ECFC) as cell therapy candidate for NHIE. We compared benefits of HUCBC and ECFC transplantation 48 hours after injury in male rat NHIE model, based on the Rice‐Vannucci approach. Based on behavioral tests, immune‐histological assessment and metabolic imaging of brain perfusion using single photon emission computed tomography (SPECT), HUCBC, or ECFC administration provided equally early and sustained functional benefits, up to 8 weeks after injury. These results were associated with total normalization of injured hemisphere cerebral blood flow assessed by SPECT/CT imaging. In conclusion, even if ECFC represent an efficient candidate, HUCBC autologous criteria and easier availability make them the ideal candidate for hypoxic‐ischemic cell therapy. Stem Cells Translational Medicine2017;6:1987–1996
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Affiliation(s)
- Isabelle Grandvuillemin
- Aix Marseille Univ, INSERM, VRCM, UMR_1076, UFR de Pharmacie, Marseille, France.,APHM, CHU La Conception, Department of Neonatology, Marseille, France
| | - Philippe Garrigue
- Aix Marseille Univ, INSERM, VRCM, UMR_1076, UFR de Pharmacie, Marseille, France.,APHM, Radiopharmacy, Marseille, France.,CERIMED, Aix Marseille Univ, Marseille, France
| | - Alaa Ramdani
- Aix Marseille Univ, INSERM, VRCM, UMR_1076, UFR de Pharmacie, Marseille, France
| | - Farid Boubred
- Aix Marseille Univ, INSERM, VRCM, UMR_1076, UFR de Pharmacie, Marseille, France.,APHM, CHU La Conception, Department of Neonatology, Marseille, France
| | - Umberto Simeoni
- Division of Pediatrics, CHUV & University of Lausanne, Switzerland
| | | | - Florence Sabatier
- Aix Marseille Univ, INSERM, VRCM, UMR_1076, UFR de Pharmacie, Marseille, France.,APHM, CHU La Conception, Cell Culture and Therapy Laboratory, INSERM CBT-1409, Marseille, France
| | - Benjamin Guillet
- Aix Marseille Univ, INSERM, VRCM, UMR_1076, UFR de Pharmacie, Marseille, France.,APHM, Radiopharmacy, Marseille, France.,CERIMED, Aix Marseille Univ, Marseille, France
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8
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Chan YL, Saad S, Machaalani R, Oliver BG, Vissel B, Pollock C, Jones NM, Chen H. Maternal Cigarette Smoke Exposure Worsens Neurological Outcomes in Adolescent Offspring with Hypoxic-Ischemic Injury. Front Mol Neurosci 2017; 10:306. [PMID: 29018327 PMCID: PMC5623008 DOI: 10.3389/fnmol.2017.00306] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 09/11/2017] [Indexed: 12/22/2022] Open
Abstract
Hypoxic-ischemic (HI) encephalopathy occurs in approximately 6 per 1000 term newborns leading to devastating neurological consequences, such as cerebral palsy and seizures. Maternal smoking is one of the prominent risk factors contributing to HI injury. Mitochondrial integrity plays a critical role in neural injury and repair during HI. We previously showed that maternal cigarette smoke exposure (SE) can reduce brain mitochondrial fission and autophagosome markers in male offspring. This was accompanied by increased brain cell apoptosis (active caspase-3) and DNA fragmentation (TUNEL staining). Here, we aimed to investigate whether maternal SE leads to more severe neurological damage after HI brain injury in male offspring. Female BALB/c mice (8 weeks) were exposed to cigarette smoke prior to mating, during gestation, and lactation. At postnatal day 10, half of the pups from each litter underwent left carotid artery occlusion, followed by exposure to 8% oxygen (92% nitrogen). At postnatal day 40-44, maternal SE reduced grip strength in grip traction and foot fault tests, which were also reduced by HI injury to similar levels regardless of the maternal group. Limb coordination was impaired by maternal SE which was not worsened by HI injury. Maternal SE increased anxiety level in the offspring, which was normalized by HI injury. Apoptosis markers were increased in different brain regions by maternal SE, with the cortex having further increased TUNEL by HI injury, along with increased markers of inflammation and mitophagy. We conclude that maternal SE can worsen HI-induced cellular damage in male offspring well into adolescence.
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Affiliation(s)
- Yik L Chan
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia
| | - Sonia Saad
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia.,Renal Research Group, Kolling Institute, Royal North Shore Hospital, St. Leonards, NSW, Australia
| | - Rita Machaalani
- Department of Medicine, University of Sydney, Sydney, NSW, Australia
| | - Brian G Oliver
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia
| | - Bryce Vissel
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia.,Centre for Neuroscience and Regenerative Medicine, Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
| | - Carol Pollock
- Renal Research Group, Kolling Institute, Royal North Shore Hospital, St. Leonards, NSW, Australia
| | - Nicole M Jones
- Department of Pharmacology, School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Hui Chen
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
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9
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Reinboth BS, Köster C, Abberger H, Prager S, Bendix I, Felderhoff-Müser U, Herz J. Endogenous hypothermic response to hypoxia reduces brain injury: Implications for modeling hypoxic-ischemic encephalopathy and therapeutic hypothermia in neonatal mice. Exp Neurol 2016; 283:264-75. [DOI: 10.1016/j.expneurol.2016.06.024] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 06/15/2016] [Accepted: 06/22/2016] [Indexed: 01/16/2023]
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10
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Barra de la Tremblaye P, Plamondon H. Alterations in the corticotropin-releasing hormone (CRH) neurocircuitry: Insights into post stroke functional impairments. Front Neuroendocrinol 2016; 42:53-75. [PMID: 27455847 DOI: 10.1016/j.yfrne.2016.07.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 07/04/2016] [Accepted: 07/06/2016] [Indexed: 10/21/2022]
Abstract
Although it is well accepted that changes in the regulation of the hypothalamic-pituitary adrenal (HPA) axis may increase susceptibility to affective disorders in the general population, this link has been less examined in stroke patients. Yet, the bidirectional association between depression and cardiovascular disease is strong, and stress increases vulnerability to stroke. Corticotropin-releasing hormone (CRH) is the central stress hormone of the HPA axis pathway and acts by binding to CRH receptors (CRHR) 1 and 2, which are located in several stress-related brain regions. Evidence from clinical and animal studies suggests a role for CRH in the neurobiological basis of depression and ischemic brain injury. Given its importance in the regulation of the neuroendocrine, autonomic, and behavioral correlates of adaptation and maladaptation to stress, CRH is likely associated in the pathophysiology of post stroke emotional impairments. The goals of this review article are to examine the clinical and experimental data describing (1) that CRH regulates the molecular signaling brain circuit underlying anxiety- and depression-like behaviors, (2) the influence of CRH and other stress markers in the pathophysiology of post stroke emotional and cognitive impairments, and (3) context and site specific interactions of CRH and BDNF as a basis for the development of novel therapeutic targets. This review addresses how the production and release of the neuropeptide CRH within the various regions of the mesocorticolimbic system influences emotional and cognitive behaviors with a look into its role in psychiatric disorders post stroke.
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Affiliation(s)
- P Barra de la Tremblaye
- School of Psychology, Behavioral Neuroscience Program, University of Ottawa, 136 Jean-Jacques Lussier, Vanier Building, Ottawa, Ontario K1N 6N5, Canada
| | - H Plamondon
- School of Psychology, Behavioral Neuroscience Program, University of Ottawa, 136 Jean-Jacques Lussier, Vanier Building, Ottawa, Ontario K1N 6N5, Canada.
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11
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Yang L, Hei MY, Dai JJ, Hu N, Xiang XY. Effect of hyperbaric oxygenation on mitochondrial function of neuronal cells in the cortex of neonatal rats after hypoxic-ischemic brain damage. ACTA ACUST UNITED AC 2016; 49:e5187. [PMID: 27119428 PMCID: PMC4849969 DOI: 10.1590/1414-431x20165187] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Accepted: 02/15/2016] [Indexed: 11/21/2022]
Abstract
The timing and mechanisms of protection by hyperbaric oxygenation (HBO) in
hypoxic-ischemic brain damage (HIBD) have only been partially elucidated. We
monitored the effect of HBO on the mitochondrial function of neuronal cells in the
cerebral cortex of neonatal rats after HIBD. Neonatal Sprague-Dawley rats (total of
360 of both genders) were randomly divided into normal control, HIBD, and HIBD+HBO
groups. The HBO treatment began immediately after hypoxia-ischemia (HI) and continued
once a day for 7 consecutive days. Animals were euthanized 0, 2, 4, 6, and 12 h
post-HI to monitor the changes in mitochondrial membrane potential (ΔΨm) occurring
soon after a single dose of HBO treatment, as well as 2, 3, 4, 5, 6, and 7 days
post-HI to study ΔΨm changes after a series of HBO treatments. Fluctuations in ΔΨm
were observed in the ipsilateral cortex in both HIBD and HIBD+HBO groups. Within 2 to
12 h after HI insult, the ΔΨm of the HIBD and HIBD+HBO groups recovered to some
extent. A secondary drop in ΔΨm was observed in both groups during the 1-4 days
post-HI period, but was more severe in the HIBD+HBO group. There was a secondary
recovery of ΔΨm observed in the HIBD+HBO group, but not in the HIBD group, during the
5-7 days period after HI insult. HBO therapy may not lead to improvement of neural
cell mitochondrial function in the cerebral cortex in the early stage post-HI, but
may improve it in the sub-acute stage post-HI.
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Affiliation(s)
- L Yang
- Third Xiangya Hospital, Department of Pediatrics, Central South University, Changsha, Hunan, China
| | - M Y Hei
- Third Xiangya Hospital, Department of Pediatrics, Central South University, Changsha, Hunan, China
| | - J J Dai
- Third Xiangya Hospital, Department of Pediatrics, Central South University, Changsha, Hunan, China
| | - N Hu
- Third Xiangya Hospital, Department of Pediatrics, Central South University, Changsha, Hunan, China
| | - X Y Xiang
- Third Xiangya Hospital, Department of Pediatrics, Central South University, Changsha, Hunan, China
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Knowles MD, de la Tremblaye PB, Azogu I, Plamondon H. Endocannabinoid CB1 receptor activation upon global ischemia adversely impact recovery of reward and stress signaling molecules, neuronal survival and behavioral impulsivity. Prog Neuropsychopharmacol Biol Psychiatry 2016; 66:8-21. [PMID: 26529486 DOI: 10.1016/j.pnpbp.2015.10.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 10/15/2015] [Accepted: 10/31/2015] [Indexed: 12/28/2022]
Abstract
Global cerebral ischemia in rodents, which mimics cardiac arrest in humans, is associated with a surge in endocannabinoids and increased transmission of dopamine and glutamate leading to excitotoxic cell death. The current study assessed the role of CB1 receptor activation at the moment of an ischemic insult on ensuing regulation of stress and reward signaling molecules, neuronal injury and anxiety-like behavior. Male Wistar rats were separated into 4 groups (n=10/group); sham and ischemic rats administered the CB1 endocannabinoid receptor antagonist AM251 (2mg/kg, i.p.) 30min prior to global cerebral ischemia, and vehicle-treated counterparts. The effects of CB1 receptor blockade on corticotropin-releasing hormone (CRH), vesicular glutamate transporter 2 (vGluT2), tyrosine hydroxylase (TH) and dopamine receptor 1 (DRD1) signaling expression, together with CA1 neuronal damage and anxiety-like behaviors were assessed. Our findings show attenuated CA1 injury and behavioral deficits in AM251-treated ischemic rats. AM251-pretreatment also partially or completely reversed ischemia-induced alterations in TH-ir expression at the hippocampus, ventral tegmental area (VTA), nucleus accumbens (NAc) and basolateral amygdala (BLA), normalized DRD1-ir at the medial forebrain bundle, and diminished BLA and PVN-CRH expression. All groups showed comparable vGluT2 expression at the BLA and PVN-parvocellular subdivision. These findings support a determinant role of CB1 receptor activation at time of ischemia on functional recovery. They also support "state-dependent" effects of endocannabinoids, raising considerations in the development of effective molecules to regulate HPA axis function and mood disorders following cardiac arrest and stroke.
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Affiliation(s)
- Megan Dunbar Knowles
- Department of Psychology, University of Ottawa, Behavioural Neuroscience Group, 136 Jean-Jacques Lussier, Ottawa, ON, Canada
| | - Patricia Barra de la Tremblaye
- Department of Psychology, University of Ottawa, Behavioural Neuroscience Group, 136 Jean-Jacques Lussier, Ottawa, ON, Canada
| | - Idu Azogu
- Department of Psychology, University of Ottawa, Behavioural Neuroscience Group, 136 Jean-Jacques Lussier, Ottawa, ON, Canada
| | - Hélène Plamondon
- Department of Psychology, University of Ottawa, Behavioural Neuroscience Group, 136 Jean-Jacques Lussier, Ottawa, ON, Canada.
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Hei MY, Tao HK, Tang Q, Yu B, Zhao LL. Decreased levels of pNR1 S897 protein in the cortex of neonatal Sprague Dawley rats with hypoxic-ischemic or NMDA-induced brain damage. Braz J Med Biol Res 2012; 45:962-7. [PMID: 22714810 PMCID: PMC3854173 DOI: 10.1590/s0100-879x2012007500100] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2011] [Accepted: 03/28/2012] [Indexed: 11/22/2022] Open
Abstract
Our objective was to investigate the protein level of phosphorylated N-methyl-D-aspartate (NMDA) receptor-1 at serine 897 (pNR1 S897) in both NMDA-induced brain damage and hypoxic-ischemic brain damage (HIBD), and to obtain further evidence that HIBD in the cortex is related to NMDA toxicity due to a change of the pNR1 S897 protein level. At postnatal day 7, male and female Sprague Dawley rats (13.12 ± 0.34 g) were randomly divided into normal control, phosphate-buffered saline (PBS) cerebral microinjection, HIBD, and NMDA cerebral microinjection groups. Immunofluorescence and Western blot (N = 10 rats per group) were used to examine the protein level of pNR1 S897. Immunofluorescence showed that control and PBS groups exhibited significant neuronal cytoplasmic staining for pNR1 S897 in the cortex. Both HIBD and NMDA-induced brain damage markedly decreased pNR1 S897 staining in the ipsilateral cortex, but not in the contralateral cortex. Western blot analysis showed that at 2 and 24 h after HIBD, the protein level of pNR1 S897 was not affected in the contralateral cortex (P > 0.05), whereas it was reduced in the ipsilateral cortex (P < 0.05). At 2 h after NMDA injection, the protein level of pNR1 S897 in the contralateral cortex was also not affected (P > 0.05). The levels in the ipsilateral cortex were decreased, but the change was not significant (P > 0.05). The similar reduction in the protein level of pNR1 S897 following both HIBD and NMDA-induced brain damage suggests that HIBD is to some extent related to NMDA toxicity possibly through NR1 phosphorylation of serine 897.
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Affiliation(s)
- Ming-Yan Hei
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
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