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Zhang J, Tang S, Chen C, Jiang H, Liao H, Liu H, Wang L, Chen X. A bibliometric analysis of the studies in high-altitude induced sleep disturbances and cognitive impairment research. Front Physiol 2023; 14:1133059. [PMID: 36860517 PMCID: PMC9968939 DOI: 10.3389/fphys.2023.1133059] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 01/26/2023] [Indexed: 02/16/2023] Open
Abstract
Background: The two main symptoms at high altitude, sleep abnormalities and cognitive impairments, interact with each other. These two dysfunctions are also closely related to systemic multisystem diseases, including cerebrovascular diseases, psychiatric disorders, and immune regulatory diseases. Purpose: To systematically analyze and visualize research on sleep disturbances and cognitive impairment at high altitudes using a bibliometrics method, and to determine future research directions by analyzing research trends and the latest hotspots. Methods: Publications from 1990 to 2022 on sleep disturbances and cognitive impairment at high altitudes were retrieved from the Web of Science. Using the R Bibliometrix software and Microsoft Excel, all data were examined statistically and qualitatively. For network visualization, the data were later exported into VOSviewer 1.6.17 and CiteSpace 6.1.R6. Results: A total of 487 articles in this area were published from 1990 to 2022. In this period, there was an overall increase in the number of publications. The United States has shown considerable importance in this sector. Bloch Konrad E was the most prolific and valuable author. The most prolific journal was High Altitude Medicine & Biology, and it has been the first choice for publishing in this field in recent years. Analysis of keyword co-occurrences suggested that research interest in the clinical manifestations of sleep disturbances and cognitive impairment caused by altitude hypoxia was mainly focused on "acute mountain-sickness," "insomnia," "apnea syndrome," "depression," "anxiety," "Cheyne-strokes respiration," and "pulmonary hypertension." The mechanisms of disease development related to "oxidative stress," "inflammation," "hippocampus," "prefrontal cortex," "neurodegeneration," and "spatial memory" in the brain have been the focus of recent research. According to burst detection analysis, "mood" and "memory impairment," as terms with high strength, are expected to remain hot topics in the coming years. High-altitude-induced pulmonary hypertension is also in the emerging stage of research, and the treatments will continue to receive attention in the future. Conclusion: More attention is being focused on sleep disturbances and cognitive impairment at high altitudes. This work will serve as a useful reference for the clinical development of treatments for sleep disturbances and cognitive impairment induced by hypobaric hypoxia at high altitudes.
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Affiliation(s)
- Jiexin Zhang
- Department of Laboratory Medicine, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Songyuan Tang
- Faculty of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Chao Chen
- Department of Osteology, The 5th People’s Hospital of Jinan, Jinan, Shandong, China
| | - Hezhong Jiang
- Faculty of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Hai Liao
- Department of Laboratory Medicine, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Huawei Liu
- Department of Laboratory Medicine, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Li Wang
- Sichuan Baicheng Chinese Medicine Technology Co., Chengdu, Sichuan, China
| | - Xin Chen
- Department of Laboratory Medicine, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, Sichuan, China,*Correspondence: Xin Chen,
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Dou J, Luo H, Sammad A, Lou W, Wang D, Schenkel F, Yu Y, Fang L, Wang Y. Epigenomics of rats' liver and its cross-species functional annotation reveals key regulatory genes underlying short term heat-stress response. Genomics 2022; 114:110449. [PMID: 35985612 DOI: 10.1016/j.ygeno.2022.110449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 07/28/2022] [Accepted: 08/12/2022] [Indexed: 11/04/2022]
Abstract
Molecular responses to heat stress are multifaceted and under a complex cellular post-transcriptional control. This study explores the epigenetic and transcriptional alterations induced by heat stress (42 °C for 120 min) in the liver of rats, by integrating ATAC-seq, RNA-Seq, and WGBS information. Out of 2586 differential ATAC-seq peaks induced by heat stress, 36 up-regulated and 22 down-regulated transcript factors (TFs) are predicted, such as Cebpα, Foxa2, Foxo4, Nfya and Sp3. Furthermore, 150,189 differentially methylated regions represent 2571 differentially expressed genes (DEGs). By integrating all data, 45 DEGs are concluded as potential heat stress response markers in rats. To comprehensively annotate and narrow down predicted markers, they are integrated with GWAS results of heat stress parameters in cows, and PheWAS data in humans. Besides better understanding of heat stress responses in mammals, INSR, MAPK8, RHPN2 and BTBD7 are proposed as candidate markers for heat stress in mammals.
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Affiliation(s)
- Jinhuan Dou
- Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, National Engineering Laboratory of Animal Breeding, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China
| | - Hanpeng Luo
- Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, National Engineering Laboratory of Animal Breeding, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Abdul Sammad
- Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, National Engineering Laboratory of Animal Breeding, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Wenqi Lou
- Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, National Engineering Laboratory of Animal Breeding, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Di Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, National Engineering Laboratory of Animal Breeding, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Flavio Schenkel
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, N1G 2W1 Guelph, Ontario, Canada
| | - Ying Yu
- Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, National Engineering Laboratory of Animal Breeding, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
| | - Lingzhao Fang
- MRC Human Genetics Unit at the Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XU, United Kingdom.
| | - Yachun Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction, MARA, National Engineering Laboratory of Animal Breeding, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
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Wan D, Feng J, Wang P, Yang Z, Sun T. Hypoxia- and Inflammation-Related Transcription Factor SP3 May Be Involved in Platelet Activation and Inflammation in Intracranial Hemorrhage. Front Neurol 2022; 13:886329. [PMID: 35720085 PMCID: PMC9201407 DOI: 10.3389/fneur.2022.886329] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 04/27/2022] [Indexed: 12/05/2022] Open
Abstract
The purpose of this study was to identify the biomarkers implicated in the development of intracranial hemorrhage (ICH) and potential regulatory pathways. In the transcriptomic data for patients with ICH, we identified DEmiRNAs and DEmRNAs related to hypoxia, inflammation, and their transcription factors (TFs). An ICH-based miRNA-TF-mRNA regulatory network was thus constructed, and four biomarkers (TIMP1, PLAUR, DDIT3, and CD40) were screened for their association with inflammation or hypoxia by machine learning. Following this, SP3 was found to be a transcription factor involved in hypoxia and inflammation, which regulates TIMP1 and PLAUR. From the constructed miRNA-TF-mRNA regulatory network, we identified three axes, hsa-miR-940/RUNX1/TIMP1, hsa-miR-571/SP3/TIMP1, and hsa-miR-571/SP3/PLAUR, which may be involved in the development of ICH. Upregulated TIMP1 and PLAUR were validated in an independent clinical cohort 3 days after ICH onset. According to Gene Set Enrichment Analysis (GSEA), SP3 was discovered to be important in interleukin signaling and platelet activation for hemostasis. Transcription factor SP3 associated with hypoxia or inflammation plays an important role in development of ICH. This study provides potential targets for monitoring the severity of inflammation and hypoxia in patients with ICH.
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Affiliation(s)
- Ding Wan
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China
- Ningxia Key Laboratory of Craniocerebral Diseases, Ningxia Medical University, Yinchuan, China
| | - Jin Feng
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Peng Wang
- Ningxia Key Laboratory of Craniocerebral Diseases, Ningxia Medical University, Yinchuan, China
| | - Zhenxing Yang
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Tao Sun
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China
- Ningxia Key Laboratory of Craniocerebral Diseases, Ningxia Medical University, Yinchuan, China
- *Correspondence: Tao Sun
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4
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Granzotto A, d’Aurora M, Bomba M, Gatta V, Onofrj M, Sensi SL. Long-Term Dynamic Changes of NMDA Receptors Following an Excitotoxic Challenge. Cells 2022; 11:cells11050911. [PMID: 35269533 PMCID: PMC8909474 DOI: 10.3390/cells11050911] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/25/2022] [Accepted: 03/02/2022] [Indexed: 02/04/2023] Open
Abstract
Excitotoxicity is a form of neuronal death characterized by the sustained activation of N-methyl-D-aspartate receptors (NMDARs) triggered by the excitatory neurotransmitter glutamate. NADPH-diaphorase neurons (also known as nNOS (+) neurons) are a subpopulation of aspiny interneurons, largely spared following excitotoxic challenges. Unlike nNOS (−) cells, nNOS (+) neurons fail to generate reactive oxygen species in response to NMDAR activation, a critical divergent step in the excitotoxic cascade. However, additional mechanisms underlying the reduced vulnerability of nNOS (+) neurons to NMDAR-driven neuronal death have not been explored. Using functional, genetic, and molecular analysis in striatal cultures, we indicate that nNOS (+) neurons possess distinct NMDAR properties. These specific features are primarily driven by the peculiar redox milieu of this subpopulation. In addition, we found that nNOS (+) neurons exposed to a pharmacological maneuver set to mimic chronic excitotoxicity alter their responses to NMDAR-mediated challenges. These findings suggest the presence of mechanisms providing long-term dynamic regulation of NMDARs that can have critical implications in neurotoxic settings.
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Affiliation(s)
- Alberto Granzotto
- Center for Advanced Studies and Technology (CAST), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (M.d.); (M.B.); (V.G.); (S.L.S.)
- Department of Neuroscience, Imaging, and Clinical Sciences (DNISC), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy;
- Sue and Bill Gross Stem Cell Research Center, University of California-Irvine, Irvine, CA 92697, USA
- Correspondence:
| | - Marco d’Aurora
- Center for Advanced Studies and Technology (CAST), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (M.d.); (M.B.); (V.G.); (S.L.S.)
| | - Manuela Bomba
- Center for Advanced Studies and Technology (CAST), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (M.d.); (M.B.); (V.G.); (S.L.S.)
- Department of Neuroscience, Imaging, and Clinical Sciences (DNISC), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy;
| | - Valentina Gatta
- Center for Advanced Studies and Technology (CAST), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (M.d.); (M.B.); (V.G.); (S.L.S.)
- Laboratory of Molecular Genetics, Department of Psychological, Health and Territorial Sciences (DISPUTer), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
| | - Marco Onofrj
- Department of Neuroscience, Imaging, and Clinical Sciences (DNISC), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy;
| | - Stefano L. Sensi
- Center for Advanced Studies and Technology (CAST), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (M.d.); (M.B.); (V.G.); (S.L.S.)
- Department of Neuroscience, Imaging, and Clinical Sciences (DNISC), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy;
- Institute for Advanced Biomedical Technologies (ITAB), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
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Barhwal KK, Biswal S, Chandra Nag T, Chaurasia OP, Hota SK. Class switching of carbonic anhydrase isoforms mediates remyelination in CA3 hippocampal neurons during chronic hypoxia. Free Radic Biol Med 2020; 161:102-114. [PMID: 33035636 DOI: 10.1016/j.freeradbiomed.2020.09.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 09/19/2020] [Accepted: 09/29/2020] [Indexed: 12/17/2022]
Abstract
Chronic exposure to hypoxia results in cerebral white matter hyperintensities, increased P300 latency, delayed response and impairment in working memory. Despite burgeoning evidence on role of myelination in nerve conduction, the effect of chronic hypoxia on myelination of hippocampal neurons has been less studied. The present study provides novel evidence on alterations in myelination of hippocampal CA3 neurons following chronic hypoxic exposure. Sprague Dawley rats exposed to global hypobaric hypoxia simulating altitude of 25,000 ft showed progressive demyelination in CA3 hippocampal neurons on 14 days followed by remyelination on 21 and 28 days. The demyelination of CA3 neurons was associated with increased apoptosis of both oligodendrocyte precursor cells (OPCs) and mature oligodendrocytes (OLs), peroxidation of myelin lipids, and nitration induced reduced expression of Carbonic Anhydrase II (CAII). Prolonged hypoxic exposure of 21 and 28 days on the other hand resulted in peroxisome proliferator-activated receptor alpha (PPARα) induced upregulation of Carbonic Anhydrase IV (CAIV) expression in mature oligodendrocytes through iNOS mediated mechanisms along with reduction in lipid peroxidation and remyelination. Inhibition of carbonic anhydrase activity on the other hand prevented remyelination of CA3 neurons. Based on these findings we propose a novel iNOS mediated mechanism for regulation of myelination in hypoxic hippocampal neurons through class switching of carbonic anhydrases.
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Affiliation(s)
- Kalpana Kumari Barhwal
- Department of Physiology, All India Institute of Medical Sciences, Bhubaneswar, Odisha, 751019, India.
| | - Suryanarayan Biswal
- Centre for Brain Development and Repair, Institute of Stem Cell Biology and Regenerative Medicine, Bangalore, 560065, India; Defence Institute of High Altitude Research, DRDO, C/o 56 APO, Leh-Ladakh, Jammu & Kashmir, 901205, India
| | - Tapas Chandra Nag
- Department of Anatomy, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Om Prakash Chaurasia
- Defence Institute of High Altitude Research, DRDO, C/o 56 APO, Leh-Ladakh, Jammu & Kashmir, 901205, India
| | - Sunil Kumar Hota
- O/o Director General (Life Sciences), DRDO Head Quarters, Rajaji Marg, New Delhi, 110011, India
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Alquisiras-Burgos I, Ortiz-Plata A, Franco-Pérez J, Millán A, Aguilera P. Resveratrol reduces cerebral edema through inhibition of de novo SUR1 expression induced after focal ischemia. Exp Neurol 2020; 330:113353. [PMID: 32380020 DOI: 10.1016/j.expneurol.2020.113353] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/26/2020] [Accepted: 05/01/2020] [Indexed: 12/21/2022]
Abstract
Cerebral edema is a clinical problem that frequently follows ischemic infarcts. Sulfonylurea receptor 1 (SUR1) is an inducible protein that can form a heteromultimeric complex with aquaporin 4 (AQP4) that mediate the ion/water transport involved in brain tissue swelling. Transcription of the Abcc8 gene coding for SUR1 depends on the activity of transcriptional factor SP1, which is modulated by the cellular redox environment. Since oxidative stress is implicated in the induced neuronal damage in ischemia and edema formation, the present study aimed to evaluate if the antioxidant resveratrol (RSV) prevents the damage by reducing the de novo expression of SUR1 in the ischemic brain. Male Wistar rats were subjected to 2 h of middle cerebral artery occlusion followed by different times of reperfusion. RSV (1.9 mg/kg; i.v.) was administered at the onset of reperfusion. Brain damage and edema formation were recognized by neurological evaluation, time of survival, TTC (2,3,5-Triphenyltetrazolium chloride) staining, Evans blue extravasation, and water content. RSV mechanism of action was studied by SP1 binding activity measured through the Electrophoretic Mobility Shift Assay, and Abcc8 and Aqp4 gene expression evaluated by qPCR, immunofluorescence, and Western blot. We found that RSV reduced the infarct area and cerebral edema, prevented blood-brain barrier damage, improved neurological performance, and increased survival. Additionally, our findings suggest that the antioxidant activity of RSV targeted SP transcription factors and inhibited SUR1 and AQP4 expression. Thus, RSV by decreasing SUR1 expression could contribute to reducing edema formation, constituting a therapeutic alternative for edema reduction in stroke.
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Affiliation(s)
- Iván Alquisiras-Burgos
- Laboratorio de Patología Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suárez", Insurgentes Sur #3877, CDMX 14269, México
| | - Alma Ortiz-Plata
- Laboratorio de Neuropatología Experimental, Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suárez", Insurgentes Sur #3877, CDMX 14269, México.
| | - Javier Franco-Pérez
- Laboratorio de Formación Reticular, Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suárez", Insurgentes Sur #3877, CDMX 14269, México.
| | - Alejandro Millán
- Posgrado en Ciencias Biomédicas, Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Guerrero, Lázaro Cárdenas s/n Ciudad Universitaria, Chilpancingo, Guerrero, 39070, México
| | - Penélope Aguilera
- Laboratorio de Patología Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suárez", Insurgentes Sur #3877, CDMX 14269, México.
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7
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Adav SS, Sze SK. Hypoxia-Induced Degenerative Protein Modifications Associated with Aging and Age-Associated Disorders. Aging Dis 2020; 11:341-364. [PMID: 32257546 PMCID: PMC7069466 DOI: 10.14336/ad.2019.0604] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 06/04/2019] [Indexed: 12/18/2022] Open
Abstract
Aging is an inevitable time-dependent decline of various physiological functions that finally leads to death. Progressive protein damage and aggregation have been proposed as the root cause of imbalance in regulatory processes and risk factors for aging and neurodegenerative diseases. Oxygen is a modulator of aging. The oxygen-deprived conditions (hypoxia) leads to oxidative stress, cellular damage and protein modifications. Despite unambiguous evidence of the critical role of spontaneous non-enzymatic Degenerative Protein Modifications (DPMs) such as oxidation, glycation, carbonylation, carbamylation, and deamidation, that impart deleterious structural and functional protein alterations during aging and age-associated disorders, the mechanism that mediates these modifications is poorly understood. This review summarizes up-to-date information and recent developments that correlate DPMs, aging, hypoxia, and age-associated neurodegenerative diseases. Despite numerous advances in the study of the molecular hallmark of aging, hypoxia, and degenerative protein modifications during aging and age-associated pathologies, a major challenge remains there to dissect the relative contribution of different DPMs in aging (either natural or hypoxia-induced) and age-associated neurodegeneration.
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Affiliation(s)
- Sunil S Adav
- School of Biological Sciences, Nanyang Technological University, Singapore
- Singapore Phenome Centre, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Siu Kwan Sze
- School of Biological Sciences, Nanyang Technological University, Singapore
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Lubec J, Smidak R, Malikovic J, Feyissa DD, Korz V, Höger H, Lubec G. Dentate Gyrus Peroxiredoxin 6 Levels Discriminate Aged Unimpaired From Impaired Rats in a Spatial Memory Task. Front Aging Neurosci 2019; 11:198. [PMID: 31417400 PMCID: PMC6684764 DOI: 10.3389/fnagi.2019.00198] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 07/16/2019] [Indexed: 12/29/2022] Open
Abstract
Similar to humans, the normal aged rat population is not homogeneous in terms of cognitive function. Two distinct subpopulations of aged Sprague-Dawley rats can be identified on the basis of spatial memory performance in the hole-board paradigm. It was the aim of the study to reveal protein changes relevant to aging and spatial memory performance. Aged impaired (AI) and unimpaired (AU) male rats, 22-24 months old were selected from a large cohort of 160 animals; young animals served as control. Enriched synaptosomal fractions from dentate gyrus from behaviorally characterized old animals were used for isobaric tags labeling based quantitative proteomic analysis. As differences in peroxiredoxin 6 (PRDX6) levels were a pronounced finding, PRDX6 levels were also quantified by immunoblotting. AI showed impaired spatial memory abilities while AU performed comparably to young animals. Our study demonstrates substantial quantitative alteration of proteins involved in energy metabolism, inflammation and synaptic plasticity during aging. Moreover, we identified protein changes specifically coupled to memory performance of aged rats. PRDX6 levels clearly differentiated AI from AU and levels in AU were comparable to those of young animals. In addition, it was observed that stochasticity in protein levels increased with age and discriminate between AI and AU groups. Moreover, there was a significantly higher variability of protein levels in AI. PRDX6 is a member of the PRDX family and well-defined as a cystein-1 PRDX that reduces and detoxifies hydroxyperoxides. It is well-known and documented that the aging brain shows increased active oxygen species but so far no study proposed a potential target with antioxidant activity that would discriminate between impaired and unimpaired memory performers. Current data, representing so far the largest proteomics data set in aging dentate gyrus (DG), provide the first evidence for a probable role of PRDX6 in memory performance.
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Affiliation(s)
- Jana Lubec
- Department of Neuroproteomics, Paracelsus Private Medical University, Salzburg, Austria
| | - Roman Smidak
- Department of Pharmaceutical Chemistry, University of Vienna, Vienna, Austria
| | - Jovana Malikovic
- Core Unit of Biomedical Research, Division of Laboratory Animal Science and Genetics, Medical University of Vienna, Himberg, Austria
| | - Daniel Daba Feyissa
- Department of Neuroproteomics, Paracelsus Private Medical University, Salzburg, Austria
| | - Volker Korz
- Department of Neuroproteomics, Paracelsus Private Medical University, Salzburg, Austria
| | - Harald Höger
- Core Unit of Biomedical Research, Division of Laboratory Animal Science and Genetics, Medical University of Vienna, Himberg, Austria
| | - Gert Lubec
- Department of Neuroproteomics, Paracelsus Private Medical University, Salzburg, Austria
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9
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Petschner P, Balogh N, Adori C, Tamasi V, Kumar S, Juhasz G, Bagdy G. Downregulation of the Vitamin D Receptor Regulated Gene Set in the Hippocampus After MDMA Treatment. Front Pharmacol 2018; 9:1373. [PMID: 30559663 PMCID: PMC6287013 DOI: 10.3389/fphar.2018.01373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 11/08/2018] [Indexed: 11/13/2022] Open
Abstract
The active ingredient of ecstasy, ±3,4-methylenedioxymethamphetamine (MDMA), in addition to its initial reinforcing effects, induces selective and non-selective brain damage. Evidences suggest that the hippocampus (HC), a central region for cognition, may be especially vulnerable to impairments on the long-run, nevertheless, transcription factors that may precede and regulate such chronic changes remained uninvestigated in this region. In the current study, we used gene-set enrichment analysis (GSEA) to reveal possible transcription factor candidates responsible for enhanced vulnerability of HC after MDMA administration. Dark Agouti rats were intraperitoneally injected with saline or 15 mg/kg MDMA. Three weeks later HC gene expression was measured by Illumina whole-genome beadarrays and GSEA was performed with MSigDB transcription factor sets. The number of significantly altered genes on the genome level (significance < 0.001) in up/downregulated sets was also counted. MDMA upregulated one, and downregulated 13 gene sets in the HC of rats, compared to controls, including Pax4, Pitx2, FoxJ2, FoxO1, Oct1, Sp3, AP3, FoxO4, and vitamin D receptor (VDR)-regulated sets (q-value <0.05). VDR-regulated set contained the second highest number of significantly altered genes, including among others, Camk2n2, Gria3, and Grin2a. Most identified transcription factors are implicated in the response to ischemia confirming that serious hypoxia/ischemia occurs in the HC after MDMA administration, which may contribute to the selective vulnerability of this brain region. Moreover, our results also raise the possibility that vitamin D supplementation, in addition to the commonly used antioxidants, could be a potential alternative method to attenuate MDMA-induced chronic hippocampal impairments.
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Affiliation(s)
- Peter Petschner
- Department of Pharmacodynamics, Semmelweis University, Budapest, Hungary.,MTA-SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences, Semmelweis University, Budapest, Hungary
| | - Noemi Balogh
- Department of Pharmacodynamics, Semmelweis University, Budapest, Hungary
| | - Csaba Adori
- Department of Pharmacodynamics, Semmelweis University, Budapest, Hungary
| | - Viola Tamasi
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Budapest, Hungary
| | - Sahel Kumar
- Department of Pharmacodynamics, Semmelweis University, Budapest, Hungary
| | - Gabriella Juhasz
- Department of Pharmacodynamics, Semmelweis University, Budapest, Hungary.,SE-NAP 2 Genetic Brain Imaging Migraine Research Group, Hungarian Brain Research Program, Semmelweis University, Budapest, Hungary.,NAP-2-SE New Antidepressant Target Research Group, Hungarian Brain Research Program, Semmelweis University, Budapest, Hungary
| | - Gyorgy Bagdy
- Department of Pharmacodynamics, Semmelweis University, Budapest, Hungary.,MTA-SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences, Semmelweis University, Budapest, Hungary.,NAP-2-SE New Antidepressant Target Research Group, Hungarian Brain Research Program, Semmelweis University, Budapest, Hungary
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10
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Das D, Biswal S, Barhwal KK, Chaurasia OP, Hota SK. Kaempferol Inhibits Extra-synaptic NMDAR-Mediated Downregulation of TRkβ in Rat Hippocampus During Hypoxia. Neuroscience 2018; 392:77-91. [DOI: 10.1016/j.neuroscience.2018.09.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 09/09/2018] [Accepted: 09/17/2018] [Indexed: 10/28/2022]
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Estrogen Receptor β Mediated Neuroprotective Efficacy of Cicer microphyllum Seed Extract in Global Hypoxia. Neurochem Res 2017; 42:3474-3489. [DOI: 10.1007/s11064-017-2395-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 08/17/2017] [Accepted: 08/23/2017] [Indexed: 10/19/2022]
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12
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Boujraf S, Belaïch R, Housni A, Maaroufi M, Tizniti S, Sqalli T, Benzagmout M. Blood Oxygenation Level-Dependent Functional MRI of Early Evidences of Brain Plasticity after Hemodialysis Session by Helixone Membrane of Patients with Indices of Adrenal Deficiency. Ann Neurosci 2017; 24:82-89. [PMID: 28588363 DOI: 10.1159/000475897] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Accepted: 01/05/2017] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Various alterations of hypothalamic-pituitary-adrenal axis function have been described in patients with chronic renal failure. Nevertheless, controversial evidences were stated about the association between adrenal function deficiency (AD) and hemodialysis (HD). PURPOSE The goal of this paper was to estimate indirect indices of the adrenal gland dysfunction which is potentially influenced by oxidative stress (OS) that still generates brain plasticity and reorganization of the functional control. METHODS Two male patients undergoing HD by the synthetic Helixone membrane for more than 6 months at the HD Center of the University Hospital of Fez, Fez, Morocco, were recruited. They underwent identical assessment immediately before and after the full HD session; this consisted of a blood ionogram revealing rates of sodium and calcium, and brain blood oxygenation level-dependent functional MRI (BOLD-fMRI) using a motor paradigm in block design. RESULTS The blood ionogram revealed hypercalcemia and hyponatremia in both patients. Both biological assessment and BOLD-fMRI study results revealed a high level of OS that induced activation of a significantly large brain volume area suggesting the occurrence of possible brain plasticity and functional control reorganization induced by free radicals and enhanced by AD. CONCLUSION The occurrence of brain plasticity and functional control reorganization was demonstrated in both patients studied who were undergoing HD by BOLD-fMRI with a notable sensitivity; this plasticity is induced by elevated OS occasioned by HD technique itself and probably amplified by AD. Similar results were found in a previous study performed on the same patients undergoing HD by a polysulfone membrane.
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Affiliation(s)
- Saïd Boujraf
- Department of Biophysics and Clinical MRI Methods, University Hospital of Fez, Fez, Morocco.,The Clinical Neuroscience Laboratory, Faculty of Medicine of Fez, University Hospital of Fez, Fez, Morocco
| | - Rachida Belaïch
- Department of Biophysics and Clinical MRI Methods, University Hospital of Fez, Fez, Morocco.,The Clinical Neuroscience Laboratory, Faculty of Medicine of Fez, University Hospital of Fez, Fez, Morocco
| | - Abdelkhalek Housni
- The Clinical Neuroscience Laboratory, Faculty of Medicine of Fez, University Hospital of Fez, Fez, Morocco
| | - Mustapha Maaroufi
- The Clinical Neuroscience Laboratory, Faculty of Medicine of Fez, University Hospital of Fez, Fez, Morocco.,Department of Radiology and Clinical Imaging, University Hospital of Fez, Fez, Morocco
| | - Siham Tizniti
- The Clinical Neuroscience Laboratory, Faculty of Medicine of Fez, University Hospital of Fez, Fez, Morocco.,Department of Radiology and Clinical Imaging, University Hospital of Fez, Fez, Morocco
| | - Tarik Sqalli
- Department of Nephrology, University Hospital of Fez, Fez, Morocco
| | - Mohammed Benzagmout
- The Clinical Neuroscience Laboratory, Faculty of Medicine of Fez, University Hospital of Fez, Fez, Morocco
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13
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Nayernia Z, Colaianna M, Robledinos-Antón N, Gutzwiller E, Sloan-Béna F, Stathaki E, Hibaoui Y, Cuadrado A, Hescheler J, Stasia MJ, Saric T, Jaquet V, Krause KH. Decreased neural precursor cell pool in NADPH oxidase 2-deficiency: From mouse brain to neural differentiation of patient derived iPSC. Redox Biol 2017; 13:82-93. [PMID: 28575744 PMCID: PMC5454143 DOI: 10.1016/j.redox.2017.04.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 04/19/2017] [Accepted: 04/20/2017] [Indexed: 10/28/2022] Open
Abstract
There is emerging evidence for the involvement of reactive oxygen species (ROS) in the regulation of stem cells and cellular differentiation. Absence of the ROS-generating NADPH oxidase NOX2 in chronic granulomatous disease (CGD) patients, predominantly manifests as immune deficiency, but has also been associated with decreased cognition. Here, we investigate the role of NOX enzymes in neuronal homeostasis in adult mouse brain and in neural cells derived from human induced pluripotent stem cells (iPSC). High levels of NOX2 were found in mouse adult neurogenic regions. In NOX2-deficient mice, neurogenic regions showed diminished redox modifications, as well as decrease in neuroprecursor numbers and in expression of genes involved in neural differentiation including NES, BDNF and OTX2. iPSC from healthy subjects and patients with CGD were used to study the role of NOX2 in human in vitro neuronal development. Expression of NOX2 was low in undifferentiated iPSC, upregulated upon neural induction, and disappeared during neuronal differentiation. In human neurospheres, NOX2 protein and ROS generation were polarized within the inner cell layer of rosette structures. NOX2 deficiency in CGD-iPSCs resulted in an abnormal neural induction in vitro, as revealed by a reduced expression of neuroprogenitor markers (NES, BDNF, OTX2, NRSF/REST), and a decreased generation of mature neurons. Vector-mediated NOX2 expression in NOX2-deficient iPSCs rescued neurogenesis. Taken together, our study provides novel evidence for a regulatory role of NOX2 during early stages of neurogenesis in mouse and human.
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Affiliation(s)
- Zeynab Nayernia
- Department of Pathology and Immunology, University of Geneva Medical School, 1-rue Michel Servet, 1211 Geneva, Switzerland
| | - Marilena Colaianna
- Department of Pathology and Immunology, University of Geneva Medical School, 1-rue Michel Servet, 1211 Geneva, Switzerland
| | - Natalia Robledinos-Antón
- Instituto de Investigaciones Biomédicas "Alberto Sols", Faculty of Medicine, Autonomous University of Madrid (UAM), Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Eveline Gutzwiller
- Department of Pathology and Immunology, University of Geneva Medical School, 1-rue Michel Servet, 1211 Geneva, Switzerland
| | - Frédérique Sloan-Béna
- Hôpitaux Universitaires de Genève HUG, Laboratoires de Cytogénétique Constitutionnelle, Service de Médecine Génétique, Geneva, Switzerland
| | - Elisavet Stathaki
- Hôpitaux Universitaires de Genève HUG, Laboratoires de Cytogénétique Constitutionnelle, Service de Médecine Génétique, Geneva, Switzerland
| | - Yousef Hibaoui
- Department of Genetic Medicine and Development, University of Geneva Medical School, 1 rue Michel Servet, 1211 Geneva, Switzerland
| | - Antonio Cuadrado
- Instituto de Investigaciones Biomédicas "Alberto Sols", Faculty of Medicine, Autonomous University of Madrid (UAM), Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Jürgen Hescheler
- Center for Physiology and Pathophysiology, Institute for Neurophysiology, Medical Faculty, University of Cologne, Cologne 50931, Germany
| | - Marie-José Stasia
- Université Grenoble Alpes, Techniques de l'Ingénierie Médicale et de la Complexité- Grenoble, F38000 Grenoble, France
| | - Tomo Saric
- Center for Physiology and Pathophysiology, Institute for Neurophysiology, Medical Faculty, University of Cologne, Cologne 50931, Germany
| | - Vincent Jaquet
- Department of Pathology and Immunology, University of Geneva Medical School, 1-rue Michel Servet, 1211 Geneva, Switzerland
| | - Karl-Heinz Krause
- Department of Pathology and Immunology, University of Geneva Medical School, 1-rue Michel Servet, 1211 Geneva, Switzerland.
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14
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Qaid E, Zakaria R, Sulaiman SF, Yusof NM, Shafin N, Othman Z, Ahmad AH, Aziz CA. Insight into potential mechanisms of hypobaric hypoxia-induced learning and memory deficit - Lessons from rat studies. Hum Exp Toxicol 2017; 36:1315-1325. [PMID: 28111974 DOI: 10.1177/0960327116689714] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Impairment of memory is one of the most frequently reported symptoms during sudden hypoxia exposure in human. Cortical atrophy has been linked to the impaired memory function and is suggested to occur with chronic high-altitude exposure. However, the precise molecular mechanism(s) of hypoxia-induced memory impairment remains an enigma. In this work, we review hypoxia-induced learning and memory deficit in human and rat studies. Based on data from rat studies using different protocols of continuous hypoxia, we try to elicit potential mechanisms of hypobaric hypoxia-induced memory deficit.
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Affiliation(s)
- Eya Qaid
- 1 Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - R Zakaria
- 1 Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - S F Sulaiman
- 2 School of Biological Sciences, Universiti Sains Malaysia, Penang, Malaysia
| | - Na Mohd Yusof
- 3 Department of Anatomy, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - N Shafin
- 1 Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Z Othman
- 4 Department of Psychiatry, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - A H Ahmad
- 1 Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Cb Abd Aziz
- 1 Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
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15
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Ambrogini P, Betti M, Galati C, Di Palma M, Lattanzi D, Savelli D, Galli F, Cuppini R, Minelli A. α-Tocopherol and Hippocampal Neural Plasticity in Physiological and Pathological Conditions. Int J Mol Sci 2016; 17:E2107. [PMID: 27983697 PMCID: PMC5187907 DOI: 10.3390/ijms17122107] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 12/01/2016] [Accepted: 12/09/2016] [Indexed: 12/25/2022] Open
Abstract
Neuroplasticity is an "umbrella term" referring to the complex, multifaceted physiological processes that mediate the ongoing structural and functional modifications occurring, at various time- and size-scales, in the ever-changing immature and adult brain, and that represent the basis for fundamental neurocognitive behavioral functions; in addition, maladaptive neuroplasticity plays a role in the pathophysiology of neuropsychiatric dysfunctions. Experiential cues and several endogenous and exogenous factors can regulate neuroplasticity; among these, vitamin E, and in particular α-tocopherol (α-T), the isoform with highest bioactivity, exerts potent effects on many plasticity-related events in both the physiological and pathological brain. In this review, the role of vitamin E/α-T in regulating diverse aspects of neuroplasticity is analyzed and discussed, focusing on the hippocampus, a brain structure that remains highly plastic throughout the lifespan and is involved in cognitive functions. Vitamin E-mediated influences on hippocampal synaptic plasticity and related cognitive behavior, on post-natal development and adult hippocampal neurogenesis, as well as on cellular and molecular disruptions in kainate-induced temporal seizures are described. Besides underscoring the relevance of its antioxidant properties, non-antioxidant functions of vitamin E/α-T, mainly involving regulation of cell signaling molecules and their target proteins, have been highlighted to help interpret the possible mechanisms underlying the effects on neuroplasticity.
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Affiliation(s)
- Patrizia Ambrogini
- Department of Biomolecular Sciences, University of Urbino, 61029 Urbino, Italy.
| | - Michele Betti
- Department of Biomolecular Sciences, University of Urbino, 61029 Urbino, Italy.
| | - Claudia Galati
- Department of Biomolecular Sciences, University of Urbino, 61029 Urbino, Italy.
| | - Michael Di Palma
- Department of Biomolecular Sciences, University of Urbino, 61029 Urbino, Italy.
| | - Davide Lattanzi
- Department of Biomolecular Sciences, University of Urbino, 61029 Urbino, Italy.
| | - David Savelli
- Department of Biomolecular Sciences, University of Urbino, 61029 Urbino, Italy.
| | - Francesco Galli
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy.
| | - Riccardo Cuppini
- Department of Biomolecular Sciences, University of Urbino, 61029 Urbino, Italy.
| | - Andrea Minelli
- Department of Biomolecular Sciences, University of Urbino, 61029 Urbino, Italy.
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16
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Fusté M, Meléndez-Pérez I, Villalta-Gil V, Pinacho R, Villalmanzo N, Cardoner N, Menchón JM, Haro JM, Soriano-Mas C, Ramos B. Specificity proteins 1 and 4, hippocampal volume and first-episode psychosis. Br J Psychiatry 2016; 208:591-2. [PMID: 26541691 DOI: 10.1192/bjp.bp.114.152140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 11/03/2014] [Indexed: 11/23/2022]
Abstract
We assessed specificity protein 1 (SP1) and 4 (SP4) transcription factor levels in peripheral blood mononuclear cells and conducted a voxel-based morphometry analysis on brain structural magnetic resonance images from 11 patients with first-episode psychosis and 14 healthy controls. We found lower SP1 and SP4 levels in patients, which correlated positively with right hippocampal volume. These results extend previous evidence showing that such transcription factors may constitute a molecular pathway to the development of psychosis.
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Affiliation(s)
- Montserrat Fusté
- Montserrat Fusté, MBBS, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; Iria Meléndez-Pérez, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Victoria Villalta-Gil, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Affective Neuroscience Laboratory, Department of Psychology, Vanderbilt University, Nashville, Tennessee, USA; Raquel Pinacho, MSc, Núria Villalmanzo, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Narcís Cardoner, MD, PhD, José M. Menchón, MD, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Clinical Sciences, School of Medicine, University of Barcelona, Spain; Josep Maria Haro, MD, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Carles Soriano-Mas, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Psychobiology and Methodology of Health Sciences, Universitat Autònoma de Barcelona, Spain; Belén Ramos, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain
| | - Iria Meléndez-Pérez
- Montserrat Fusté, MBBS, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; Iria Meléndez-Pérez, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Victoria Villalta-Gil, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Affective Neuroscience Laboratory, Department of Psychology, Vanderbilt University, Nashville, Tennessee, USA; Raquel Pinacho, MSc, Núria Villalmanzo, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Narcís Cardoner, MD, PhD, José M. Menchón, MD, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Clinical Sciences, School of Medicine, University of Barcelona, Spain; Josep Maria Haro, MD, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Carles Soriano-Mas, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Psychobiology and Methodology of Health Sciences, Universitat Autònoma de Barcelona, Spain; Belén Ramos, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain
| | - Victoria Villalta-Gil
- Montserrat Fusté, MBBS, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; Iria Meléndez-Pérez, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Victoria Villalta-Gil, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Affective Neuroscience Laboratory, Department of Psychology, Vanderbilt University, Nashville, Tennessee, USA; Raquel Pinacho, MSc, Núria Villalmanzo, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Narcís Cardoner, MD, PhD, José M. Menchón, MD, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Clinical Sciences, School of Medicine, University of Barcelona, Spain; Josep Maria Haro, MD, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Carles Soriano-Mas, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Psychobiology and Methodology of Health Sciences, Universitat Autònoma de Barcelona, Spain; Belén Ramos, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain
| | - Raquel Pinacho
- Montserrat Fusté, MBBS, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; Iria Meléndez-Pérez, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Victoria Villalta-Gil, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Affective Neuroscience Laboratory, Department of Psychology, Vanderbilt University, Nashville, Tennessee, USA; Raquel Pinacho, MSc, Núria Villalmanzo, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Narcís Cardoner, MD, PhD, José M. Menchón, MD, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Clinical Sciences, School of Medicine, University of Barcelona, Spain; Josep Maria Haro, MD, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Carles Soriano-Mas, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Psychobiology and Methodology of Health Sciences, Universitat Autònoma de Barcelona, Spain; Belén Ramos, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain
| | - Núria Villalmanzo
- Montserrat Fusté, MBBS, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; Iria Meléndez-Pérez, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Victoria Villalta-Gil, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Affective Neuroscience Laboratory, Department of Psychology, Vanderbilt University, Nashville, Tennessee, USA; Raquel Pinacho, MSc, Núria Villalmanzo, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Narcís Cardoner, MD, PhD, José M. Menchón, MD, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Clinical Sciences, School of Medicine, University of Barcelona, Spain; Josep Maria Haro, MD, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Carles Soriano-Mas, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Psychobiology and Methodology of Health Sciences, Universitat Autònoma de Barcelona, Spain; Belén Ramos, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain
| | - Narcís Cardoner
- Montserrat Fusté, MBBS, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; Iria Meléndez-Pérez, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Victoria Villalta-Gil, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Affective Neuroscience Laboratory, Department of Psychology, Vanderbilt University, Nashville, Tennessee, USA; Raquel Pinacho, MSc, Núria Villalmanzo, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Narcís Cardoner, MD, PhD, José M. Menchón, MD, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Clinical Sciences, School of Medicine, University of Barcelona, Spain; Josep Maria Haro, MD, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Carles Soriano-Mas, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Psychobiology and Methodology of Health Sciences, Universitat Autònoma de Barcelona, Spain; Belén Ramos, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain
| | - José M Menchón
- Montserrat Fusté, MBBS, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; Iria Meléndez-Pérez, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Victoria Villalta-Gil, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Affective Neuroscience Laboratory, Department of Psychology, Vanderbilt University, Nashville, Tennessee, USA; Raquel Pinacho, MSc, Núria Villalmanzo, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Narcís Cardoner, MD, PhD, José M. Menchón, MD, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Clinical Sciences, School of Medicine, University of Barcelona, Spain; Josep Maria Haro, MD, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Carles Soriano-Mas, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Psychobiology and Methodology of Health Sciences, Universitat Autònoma de Barcelona, Spain; Belén Ramos, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain
| | - Josep Maria Haro
- Montserrat Fusté, MBBS, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; Iria Meléndez-Pérez, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Victoria Villalta-Gil, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Affective Neuroscience Laboratory, Department of Psychology, Vanderbilt University, Nashville, Tennessee, USA; Raquel Pinacho, MSc, Núria Villalmanzo, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Narcís Cardoner, MD, PhD, José M. Menchón, MD, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Clinical Sciences, School of Medicine, University of Barcelona, Spain; Josep Maria Haro, MD, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Carles Soriano-Mas, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Psychobiology and Methodology of Health Sciences, Universitat Autònoma de Barcelona, Spain; Belén Ramos, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain
| | - Carles Soriano-Mas
- Montserrat Fusté, MBBS, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; Iria Meléndez-Pérez, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Victoria Villalta-Gil, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Affective Neuroscience Laboratory, Department of Psychology, Vanderbilt University, Nashville, Tennessee, USA; Raquel Pinacho, MSc, Núria Villalmanzo, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Narcís Cardoner, MD, PhD, José M. Menchón, MD, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Clinical Sciences, School of Medicine, University of Barcelona, Spain; Josep Maria Haro, MD, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Carles Soriano-Mas, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Psychobiology and Methodology of Health Sciences, Universitat Autònoma de Barcelona, Spain; Belén Ramos, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain
| | - Belén Ramos
- Montserrat Fusté, MBBS, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; Iria Meléndez-Pérez, MSc, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Victoria Villalta-Gil, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain and Affective Neuroscience Laboratory, Department of Psychology, Vanderbilt University, Nashville, Tennessee, USA; Raquel Pinacho, MSc, Núria Villalmanzo, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Narcís Cardoner, MD, PhD, José M. Menchón, MD, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Clinical Sciences, School of Medicine, University of Barcelona, Spain; Josep Maria Haro, MD, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain; Carles Soriano-Mas, PhD, Bellvitge Biomedical Research Institute-IDIBELL, Psychiatry Department, Bellvitge University Hospital, CIBERSAM and Department of Psychobiology and Methodology of Health Sciences, Universitat Autònoma de Barcelona, Spain; Belén Ramos, PhD, Unitat de recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, CIBERSAM, Sant Boi de Llobregat (Barcelona), Spain
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Biswal S, Sharma D, Kumar K, Nag TC, Barhwal K, Hota SK, Kumar B. Global hypoxia induced impairment in learning and spatial memory is associated with precocious hippocampal aging. Neurobiol Learn Mem 2016; 133:157-170. [PMID: 27246251 DOI: 10.1016/j.nlm.2016.05.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 05/09/2016] [Accepted: 05/27/2016] [Indexed: 01/10/2023]
Abstract
Both chronological aging and chronic hypoxia stress have been reported to cause degeneration of hippocampal CA3 neurons and spatial memory impairment through independent pathways. However, the possible occurrence of precocious biological aging on exposure to single episode of global hypoxia resulting in impairment of learning and memory remains to be established. The present study thus aimed at bridging this gap in existing literature on hypoxia induced biological aging. Male Sprague Dawley rats were exposed to simulated hypobaric hypoxia (25,000ft) for different durations and were compared with aged rats. Behavioral studies in Morris Water Maze showed decline in learning abilities of both chronologically aged as well as hypoxic rats as evident from increased latency and pathlength to reach target platform. These behavioral changes in rats exposed to global hypoxia were associated with deposition of lipofuscin and ultrastructural changes in the mitochondria of hippocampal neurons that serve as hallmarks of aging. A single episode of chronic hypobaric hypoxia exposure also resulted in the up-regulation of pro-aging protein, S100A9 and down regulation of Tau, SNAP25, APOE and Sod2 in the hippocampus similar to that in aged rats indicating hypoxia induced accelerated aging. The present study therefore provides evidence for role of biological aging of hippocampal neurons in hypoxia induced impairment of learning and memory.
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Affiliation(s)
- Suryanarayan Biswal
- Defence Institute of High Altitude Research, C/o 56 APO, Leh-Ladakh, Jammu & Kashmir 901205, India
| | - Deepti Sharma
- Defence Institute of High Altitude Research, C/o 56 APO, Leh-Ladakh, Jammu & Kashmir 901205, India
| | - Kushal Kumar
- Defence Institute of High Altitude Research, C/o 56 APO, Leh-Ladakh, Jammu & Kashmir 901205, India
| | - Tapas Chandra Nag
- Department of Anatomy, All India Institute of Medical Science, New Delhi, India
| | - Kalpana Barhwal
- Defence Institute of High Altitude Research, C/o 56 APO, Leh-Ladakh, Jammu & Kashmir 901205, India
| | - Sunil Kumar Hota
- Defence Institute of High Altitude Research, C/o 56 APO, Leh-Ladakh, Jammu & Kashmir 901205, India.
| | - Bhuvnesh Kumar
- Defence Institute of High Altitude Research, C/o 56 APO, Leh-Ladakh, Jammu & Kashmir 901205, India
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18
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Li K, Gao B, Li J, Chen H, Li Y, Wei Y, Gong D, Gao J, Zhang J, Tan W, Wen T, Zhang L, Huang L, Xiang R, Lin P, Wei Y. ZNF32 protects against oxidative stress-induced apoptosis by modulating C1QBP transcription. Oncotarget 2015; 6:38107-26. [PMID: 26497555 PMCID: PMC4741987 DOI: 10.18632/oncotarget.5646] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 10/06/2015] [Indexed: 02/05/2023] Open
Abstract
Reactive oxygen species (ROS)-driven oxidative stress has been recognized as a critical inducer of cancer cell death in response to therapeutic agents. Our previous studies have demonstrated that zinc finger protein (ZNF)32 is key to cell survival upon oxidant stimulation. However, the mechanisms by which ZNF32 mediates cell death remain unclear. Here, we show that at moderate levels of ROS, Sp1 directly binds to two GC boxes within the ZNF32 promoter to activate ZNF32 transcription. Alternatively, at cytotoxic ROS concentrations, ZNF32 expression is repressed due to decreased binding activity of Sp1. ZNF32 overexpression maintains mitochondrial membrane potential and enhances the antioxidant capacity of cells to detoxify ROS, and these effects promote cell survival upon pro-oxidant agent treatment. Alternatively, ZNF32-deficient cells are more sensitive and vulnerable to oxidative stress-induced cell injury. Mechanistically, we demonstrate that complement 1q-binding protein (C1QBP) is a direct target gene of ZNF32 that inactivates the p38 MAPK pathway, thereby exerting the protective effects of ZNF32 on oxidative stress-induced apoptosis. Taken together, our findings indicate a novel mechanism by which the Sp1-ZNF32-C1QBP axis protects against oxidative stress and implicate a promising strategy that ZNF32 inhibition combined with pro-oxidant anticancer agents for hepatocellular carcinoma treatment.
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MESH Headings
- Animals
- Antineoplastic Agents/pharmacology
- Antioxidants/pharmacology
- Apoptosis/drug effects
- Binding Sites
- Carcinoma, Hepatocellular/drug therapy
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/metabolism
- Carcinoma, Hepatocellular/pathology
- Carrier Proteins/genetics
- Carrier Proteins/metabolism
- Dose-Response Relationship, Drug
- Female
- Gene Expression Regulation, Neoplastic
- HEK293 Cells
- Hep G2 Cells
- Humans
- Kruppel-Like Transcription Factors/genetics
- Kruppel-Like Transcription Factors/metabolism
- Liver Neoplasms/drug therapy
- Liver Neoplasms/genetics
- Liver Neoplasms/metabolism
- Liver Neoplasms/pathology
- Male
- Membrane Potential, Mitochondrial
- Mice, Inbred BALB C
- Mice, Nude
- Middle Aged
- Mitochondrial Proteins/genetics
- Mitochondrial Proteins/metabolism
- Oxidants/pharmacology
- Oxidative Stress/drug effects
- Promoter Regions, Genetic
- RNA Interference
- Reactive Oxygen Species/metabolism
- Signal Transduction
- Sp1 Transcription Factor/metabolism
- Time Factors
- Transcription, Genetic/drug effects
- Transcriptional Activation
- Transfection
- Xenograft Model Antitumor Assays
- p38 Mitogen-Activated Protein Kinases/metabolism
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Affiliation(s)
- Kai Li
- Department of Experimental Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Bo Gao
- Department of Experimental Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
- Department of Pathology, College of Clinical Medicine, Dali University, Dali, China
| | - Jun Li
- Department of Experimental Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Haining Chen
- Department of Experimental Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yanyan Li
- Department of Experimental Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Yuyan Wei
- Department of Experimental Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Di Gong
- Department of Experimental Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Junping Gao
- Department of Experimental Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Jie Zhang
- Department of Experimental Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Weiwei Tan
- Department Biorepository, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Tianfu Wen
- Department of Liver Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Le Zhang
- Department of Experimental Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Lugang Huang
- Department of Pediatric Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Rong Xiang
- Department of Clinical Medicine, School of Medicine, Nankai University, and Collaborative Innovation Center for Biotherapy, Tianjin, China
| | - Ping Lin
- Department of Experimental Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Yuquan Wei
- Department of Cancer Biotherapy, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
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19
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Barhwal K, Das SK, Kumar A, Hota SK, Srivastava RB. Insulin receptor A and Sirtuin 1 synergistically improve learning and spatial memory following chronic salidroside treatment during hypoxia. J Neurochem 2015; 135:332-46. [PMID: 26173704 DOI: 10.1111/jnc.13225] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 06/27/2015] [Accepted: 06/29/2015] [Indexed: 01/09/2023]
Abstract
Hypoxia has been reported to cause hippocampal neurodegeneration resulting in learning and memory deficits. In the present study, we investigated the potential of salidroside, a glucoside derivative of tyrosol, in ameliorating hypoxia-induced neurodegeneration and memory impairment. Morris water maze test showed improvement in learning and spatial memory of salidroside-treated hypoxic rats correlating with increased dendritic intersections and arborization. Salidroside administration increased phosphorylation of insulin receptor subunit A (IRA) at Y972, Y1162/63, and Y1146 sites and subsequent activation of AMP-activated protein kinase (AMPK) α subunit isoforms pAMPKα1 and pAMPKα2 resulting in mitochondrial biogenesis. Contrarily, silencing of IRA in salidroside-supplemented hypoxic hippocampal cells could not improve cell viability or alter pAMPKα1 and pAMPKα2 expression. Rats administered with salidroside showed elevated expression of phosphorylated cAMP response element-binding protein in the hippocampus. Salidroside administration also resulted in increased sirtuin 1 (SIRT1) activity through a cytochrome P4502E1 (CYP2E1)-regulated mechanism that was independent of pIRA. Taken together, these findings suggest a synergistic role of pIRA and SIRT1 in salidroside-mediated neuroprotection, mitochondrial biogenesis, and cognitive improvement during hypoxia. We propose a novel mechanism for salidroside-mediated neuroprotection in hypoxia.
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Affiliation(s)
- Kalpana Barhwal
- Defence Institute of High Altitude Research, Leh-Ladakh, Jammu and Kashmir, India
| | - Saroj K Das
- Defence Institute of High Altitude Research, Leh-Ladakh, Jammu and Kashmir, India
| | - Ashish Kumar
- Defence Institute of High Altitude Research, Leh-Ladakh, Jammu and Kashmir, India
| | - Sunil K Hota
- Defence Institute of High Altitude Research, Leh-Ladakh, Jammu and Kashmir, India
| | - Ravi B Srivastava
- Defence Institute of High Altitude Research, Leh-Ladakh, Jammu and Kashmir, India
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20
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Das SK, Barhwal K, Hota SK, Thakur MK, Srivastava RB. Disrupting monotony during social isolation stress prevents early development of anxiety and depression like traits in male rats. BMC Neurosci 2015; 16:2. [PMID: 25880744 PMCID: PMC4336522 DOI: 10.1186/s12868-015-0141-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 01/21/2015] [Indexed: 01/11/2023] Open
Abstract
Background Although there have been several reports on social isolation induced mood alterations, the independent contribution of monotonous environment in mediating mood alterations has been less studied. In view of the above, the present study is aimed at investigating the relative contribution of monotony towards mood alterations during isolation stress. Monotony was induced in a specially designed isolation chamber in male Sprague-Dawley rats in the presence or absence of isolation by housing animals singly (SH) or in pairs (PH). Novel objects were introduced to disrupt monotony in singly housed animals (SHNO) or paired housed animals (PHNO). Behavioural alterations were assessed using Open field test (OFT), Elevated Plus Maze (EPM) and Forced Swim Test (FST). Neuro-morphological changes in the CA3 region of hippocampus were studied by cresyl violet and golgi-cox staining. Hippocampal serotonin and 5-hydroxy indole acetic acid (5-HIAA) levels were estimated along with the expression of phospho-insulin like growth factor-1 receptor (pIGF-1R) and phospho cyclic AMP response-element binding protein (pCREB). Serotonin was depleted by administering Para-chlorophenylalanine (PCPA) to a separate PH group (PHPCPA), PHNO group (PHNOPCPA) and SHNO group (SHNOPCPA) to determine the role of serotonin in mediating monotony induced emotional mal-adaptations. Results The results showed anxiety and depression like traits in both PH and SH groups during behavioural test such as OFT, EPM and FST. Pyknosis along with decrease in apical dendritic arborization was observed in the CA3 region of SH group along with decrease in serotonin and reduced expression of pIGF-1R and pCREB. Disrupting monotony through intervention of novel objects in PHNO and SHNO groups ameliorated anxiety and depression like traits and augmented pIGF-1R along with increase in serotonin level. Depletion of hippocampal serotonin level by PCPA administration in PHNOPCPA and SHNOPCPA groups on the other hand resulted in altered mood state despite disruption of monotony by novel objects intervention. Conclusion The findings of our study suggest that monotonous environment independently contributes to impairment in mood state and disrupting monotony by intervention of novel objects during social isolation prevents mood disorders and emotional maladaptation through up regulation of hippocampal pIGF-1R and increase in serotonin.
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Affiliation(s)
- Saroj Kumar Das
- Experimental Biology Division, Defence Institute of High Altitude Research, Defence Research Development Organisation, Leh-Ladakh, C/O- 56 APO, Jammu and Kashmir, 901205, India.
| | - Kalpana Barhwal
- Experimental Biology Division, Defence Institute of High Altitude Research, Defence Research Development Organisation, Leh-Ladakh, C/O- 56 APO, Jammu and Kashmir, 901205, India.
| | - Sunil Kumar Hota
- Experimental Biology Division, Defence Institute of High Altitude Research, Defence Research Development Organisation, Leh-Ladakh, C/O- 56 APO, Jammu and Kashmir, 901205, India.
| | | | - Ravi Bihari Srivastava
- Experimental Biology Division, Defence Institute of High Altitude Research, Defence Research Development Organisation, Leh-Ladakh, C/O- 56 APO, Jammu and Kashmir, 901205, India.
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21
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Husi H, Sanchez-Niño MD, Delles C, Mullen W, Vlahou A, Ortiz A, Mischak H. A combinatorial approach of Proteomics and Systems Biology in unravelling the mechanisms of acute kidney injury (AKI): involvement of NMDA receptor GRIN1 in murine AKI. BMC SYSTEMS BIOLOGY 2013; 7:110. [PMID: 24172336 PMCID: PMC3827826 DOI: 10.1186/1752-0509-7-110] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 10/28/2013] [Indexed: 12/23/2022]
Abstract
BACKGROUND Acute kidney injury (AKI) is a frequent condition in hospitalised patients undergoing major surgery or the critically ill and is associated with increased mortality. Based on the volume of the published literature addressing this condition, reporting both supporting as well as conflicting molecular evidence, it is apparent that a comprehensive analysis strategy is required to understand and fully delineate molecular events and pathways which can be used to describe disease induction and progression as well as lead to a more targeted approach in intervention therapies. RESULTS We used a Systems Biology approach coupled with a de-novo high-resolution proteomic analysis of kidney cortex samples from a mouse model of folic acid-induced AKI (12 animals in total) and show comprehensive mapping of signalling cascades, gene activation events and metabolite interference by mapping high-resolution proteomic datasets onto a de-novo hypothesis-free dataspace. The findings support the involvement of the glutamatergic signalling system in AKI, induced by over-activation of the N-methyl-D-aspartate (NMDA)-receptor leading to apoptosis and necrosis by Ca2+-influx, calpain and caspase activation, and co-occurring reactive oxygen species (ROS) production to DNA fragmentation and NAD-rundown. The specific over-activation of the NMDA receptor may be triggered by the p53-induced protein kinase Dapk1, which is a known non-reversible cell death inducer in a neurological context. The pathway mapping is consistent with the involvement of the Renin-Angiotensin Aldosterone System (RAAS), corticoid and TNFα signalling, leading to ROS production and gene activation through NFκB, PPARγ, SMAD and HIF1α trans-activation, as well as p53 signalling cascade activation. Key elements of the RAAS-glutamatergic axis were assembled as a novel hypothetical pathway and validated by immunohistochemistry. CONCLUSIONS This study shows to our knowledge for the first time in a molecular signal transduction pathway map how AKI is induced, progresses through specific signalling cascades that may lead to end-effects such as apoptosis and necrosis by uncoupling of the NMDA receptor. Our results can potentially pave the way for a targeted pharmacological intervention in disease progression or induction.
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Affiliation(s)
- Holger Husi
- BHF Glasgow Cardiovascular Research Centre, University of Glasgow, 126 University Place, Glasgow G12 8TA,, UK.
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22
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Pinacho R, Villalmanzo N, Roca M, Iniesta R, Monje A, Haro JM, Meana JJ, Ferrer I, Gill G, Ramos B. Analysis of Sp transcription factors in the postmortem brain of chronic schizophrenia: a pilot study of relationship to negative symptoms. J Psychiatr Res 2013; 47:926-34. [PMID: 23540600 DOI: 10.1016/j.jpsychires.2013.03.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Revised: 03/07/2013] [Accepted: 03/08/2013] [Indexed: 01/13/2023]
Abstract
Negative symptoms are the most resilient manifestations in schizophrenia. An imbalance in dopamine and glutamate pathways has been proposed for the emergence of these symptoms. SP1, SP3 and SP4 transcription factors regulate genes in these pathways, suggesting a possible involvement in negative symptoms. In this study, we characterized Sp factors in the brains of subjects with schizophrenia and explored a possible association with negative symptoms. We also included analysis of NR1, NR2A and DRD2 as Sp target genes. Postmortem cerebellum and prefrontal cortex from an antemortem clinically well-characterized and controlled collection of elderly subjects with chronic schizophrenia (n = 16) and control individuals (n = 14) were examined. We used the Positive and Negative Syndrome and the Clinical Global Impression Schizophrenia scales, quantitative PCR and immunoblot. SP1 protein and mRNA were reduced in the prefrontal cortex in schizophrenia whereas none of Sp factors were altered in the cerebellum. However, we found that SP1, SP3 and SP4 protein levels inversely correlated with negative symptoms in the cerebellum. Furthermore, NR2A and DRD2 mRNA levels correlated with negative symptoms in the cerebellum. In the prefrontal cortex, SP1 mRNA and NR1 and DRD2 inversely correlated with these symptoms while Sp protein levels did not. This pilot study not only reinforces the involvement of SP1 in schizophrenia, but also suggests that reduced levels or function of SP1, SP4 and SP3 may participate in negative symptoms, in part through the regulation of NMDA receptor subunits and/or Dopamine D2 receptor, providing novel information about the complex negative symptoms in this disorder.
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Affiliation(s)
- Raquel Pinacho
- Unitat de Recerca, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Universitat de Barcelona, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Dr. Antoni Pujadas, 42, 08830 Sant Boi de Llobregat, Barcelona, Spain
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23
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Ye Q, Zhang X, Huang B, Zhu Y, Chen X. Astaxanthin suppresses MPP(+)-induced oxidative damage in PC12 cells through a Sp1/NR1 signaling pathway. Mar Drugs 2013; 11:1019-34. [PMID: 23538867 PMCID: PMC3705385 DOI: 10.3390/md11041019] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 02/22/2013] [Accepted: 02/25/2013] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE To investigate astaxanthin (ATX) neuroprotection, and its mechanism, on a 1-methyl-4-phenyl-pyridine ion (MPP+)-induced cell model of Parkinson's disease. METHODS Mature, differentiated PC12 cells treated with MPP+ were used as an in vitro cell model. The MTT assay was used to investigate cell viability after ATX treatment, and western blot analysis was used to observe Sp1 (activated transcription factor 1) and NR1 (NMDA receptor subunit 1) protein expression, real-time PCR was used to monitor Sp1 and NR1 mRNA, and cell immunofluorescence was used to determine the location of Sp1 and NR1 protein and the nuclear translocation of Sp1. RESULTS PC12 cell viability was significantly reduced by MPP+ treatment. The expression of Sp1 and NR1 mRNA and protein were increased compared with the control (p < 0.01). Following co-treatment with ATX and MPP+, cell viability was significantly increased, and Sp1 and NR1 mRNA and protein were decreased, compared with the MPP+ groups (p < 0.01). In addition, mithracycin A protected PC12 cells from oxidative stress caused by MPP+ by specifically inhibiting the expression of Sp1. Moreover, cell immunofluorescence revealed that ATX could suppress Sp1 nuclear transfer. CONCLUSION ATX inhibited oxidative stress induced by MPP+ in PC12 cells, via the SP1/NR1 signaling pathway.
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Affiliation(s)
- Qinyong Ye
- Department of Neurology, Fujian Institute of Geriatrics, The Affiliated Union Hospital of Fujian Medical University, 29 Xinquan Road, Fuzhou, Fujian 350001, China.
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Baitharu I, Deep SN, Jain V, Prasad D, Ilavazhagan G. Inhibition of glucocorticoid receptors ameliorates hypobaric hypoxia induced memory impairment in rat. Behav Brain Res 2013; 240:76-86. [DOI: 10.1016/j.bbr.2012.11.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 11/05/2012] [Accepted: 11/07/2012] [Indexed: 01/03/2023]
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Hota KB, Hota SK, Srivastava RB, Singh SB. Neuroglobin regulates hypoxic response of neuronal cells through Hif-1α- and Nrf2-mediated mechanism. J Cereb Blood Flow Metab 2012; 32:1046-60. [PMID: 22472608 PMCID: PMC3367222 DOI: 10.1038/jcbfm.2012.21] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Oxygen sensing in hypoxic neurons has been classically attributed to cytochrome c oxidase and prolyl-4-hydroxylases and involves stabilization of transcription factors, hypoxia-inducible factor-1α (Hif-1α) and nuclear factor erythroid 2-related factor 2 (Nrf2) that mediate survival responses. On the contrary, release of cytochrome c into the cytosol during hypoxic stress triggers apoptosis in neuronal cells. We, here advocate that the redox state of neuroglobin (Ngb) could regulate both Hif-1α and Nrf2 stabilization and cytochrome c release during hypoxia. The hippocampal regions showing higher expression of Ngb were less susceptible to global hypoxia-mediated neurodegeneration. During normoxia, Ngb maintained cytochrome c in the reduced state and prevented its release from mitochondria by using cellular antioxidants. Greater turnover of oxidized cytochrome c and increased utilization of cellular antioxidants during acute hypoxia altered cellular redox status and stabilized Hif-1α and Nrf2 through Ngb-mediated mechanism. Chronic hypoxia, however, resulted in oxidation and degradation of Ngb, accumulation of ferric ions and release of cytochrome c that triggered apoptosis. Administration of N-acetyl-cysteine during hypoxic conditions improved neuronal survival by preventing Ngb oxidation and degradation. Taken together, these results establish a role for Ngb in regulating both the survival and apoptotic mechanisms associated with hypoxia.
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Affiliation(s)
- Kalpana B Hota
- High Altitude Physiology Laboratory, Defence Institute of High Altitude Research, Jammu and Kashmir, India
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Alpár A, Attems J, Mulder J, Hökfelt T, Harkany T. The renaissance of Ca2+-binding proteins in the nervous system: secretagogin takes center stage. Cell Signal 2012; 24:378-387. [PMID: 21982882 PMCID: PMC3237847 DOI: 10.1016/j.cellsig.2011.09.028] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Accepted: 09/24/2011] [Indexed: 02/03/2023]
Abstract
Effective control of the Ca(2+) homeostasis in any living cell is paramount to coordinate some of the most essential physiological processes, including cell division, morphological differentiation, and intercellular communication. Therefore, effective homeostatic mechanisms have evolved to maintain the intracellular Ca(2+) concentration at physiologically adequate levels, as well as to regulate the spatial and temporal dynamics of Ca(2+)signaling at subcellular resolution. Members of the superfamily of EF-hand Ca(2+)-binding proteins are effective to either attenuate intracellular Ca(2+) transients as stochiometric buffers or function as Ca(2+) sensors whose conformational change upon Ca(2+) binding triggers protein-protein interactions, leading to cell state-specific intracellular signaling events. In the central nervous system, some EF-hand Ca(2+)-binding proteins are restricted to specific subtypes of neurons or glia, with their expression under developmental and/or metabolic control. Therefore, Ca(2+)-binding proteins are widely used as molecular markers of cell identity whilst also predicting excitability and neurotransmitter release profiles in response to electrical stimuli. Secretagogin is a novel member of the group of EF-hand Ca(2+)-binding proteins whose expression precedes that of many other Ca(2+)-binding proteins in postmitotic, migratory neurons in the embryonic nervous system. Secretagogin expression persists during neurogenesis in the adult brain, yet becomes confined to regionalized subsets of differentiated neurons in the adult central and peripheral nervous and neuroendocrine systems. Secretagogin may be implicated in the control of neuronal turnover and differentiation, particularly since it is re-expressed in neoplastic brain and endocrine tumors and modulates cell proliferation in vitro. Alternatively, and since secretagogin can bind to SNARE proteins, it might function as a Ca(2+) sensor/coincidence detector modulating vesicular exocytosis of neurotransmitters, neuropeptides or hormones. Thus, secretagogin emerges as a functionally multifaceted Ca(2+)-binding protein whose molecular characterization can unravel a new and fundamental dimension of Ca(2+)signaling under physiological and disease conditions in the nervous system and beyond.
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Affiliation(s)
- Alán Alpár
- European Neuroscience Institute at Aberdeen, University of Aberdeen, Aberdeen AB25 2ZD, United Kingdom; Division of Molecular Neurobiology, Department of Medical Biochemistry & Biophysics, Karolinska Institutet, S-17177 Stockholm, Sweden
| | - Johannes Attems
- Institute for Ageing and Health, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne NE4 5PL, United Kingdom
| | - Jan Mulder
- Science for Life Laboratory, Department of Neuroscience, Karolinska Institutet, Tomtebodavägen 23A, S-17165 Solna, Sweden
| | - Tomas Hökfelt
- Department of Neuroscience, Retzius väg 8, Karolinska Institutet, S-17177 Stockholm, Sweden
| | - Tibor Harkany
- European Neuroscience Institute at Aberdeen, University of Aberdeen, Aberdeen AB25 2ZD, United Kingdom; Division of Molecular Neurobiology, Department of Medical Biochemistry & Biophysics, Karolinska Institutet, S-17177 Stockholm, Sweden.
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Massaad CA, Klann E. Reactive oxygen species in the regulation of synaptic plasticity and memory. Antioxid Redox Signal 2011; 14:2013-54. [PMID: 20649473 PMCID: PMC3078504 DOI: 10.1089/ars.2010.3208] [Citation(s) in RCA: 399] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The brain is a metabolically active organ exhibiting high oxygen consumption and robust production of reactive oxygen species (ROS). The large amounts of ROS are kept in check by an elaborate network of antioxidants, which sometimes fail and lead to neuronal oxidative stress. Thus, ROS are typically categorized as neurotoxic molecules and typically exert their detrimental effects via oxidation of essential macromolecules such as enzymes and cytoskeletal proteins. Most importantly, excessive ROS are associated with decreased performance in cognitive function. However, at physiological concentrations, ROS are involved in functional changes necessary for synaptic plasticity and hence, for normal cognitive function. The fine line of role reversal of ROS from good molecules to bad molecules is far from being fully understood. This review focuses on identifying the multiple sources of ROS in the mammalian nervous system and on presenting evidence for the critical and essential role of ROS in synaptic plasticity and memory. The review also shows that the inability to restrain either age- or pathology-related increases in ROS levels leads to opposite, detrimental effects that are involved in impairments in synaptic plasticity and memory function.
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Affiliation(s)
- Cynthia A Massaad
- Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX 77030, USA.
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Hota KB, Hota SK, Chaurasia OP, Singh SB. Acetyl-L-carnitine-mediated neuroprotection during hypoxia is attributed to ERK1/2-Nrf2-regulated mitochondrial biosynthesis. Hippocampus 2011; 22:723-36. [DOI: 10.1002/hipo.20934] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/06/2010] [Indexed: 02/05/2023]
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Kharlamov EA, Lepsveridze E, Meparishvili M, Solomonia RO, Lu B, Miller ER, Kelly KM, Mtchedlishvili Z. Alterations of GABA(A) and glutamate receptor subunits and heat shock protein in rat hippocampus following traumatic brain injury and in posttraumatic epilepsy. Epilepsy Res 2011; 95:20-34. [PMID: 21439793 DOI: 10.1016/j.eplepsyres.2011.02.008] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2010] [Revised: 12/20/2010] [Accepted: 02/18/2011] [Indexed: 12/26/2022]
Abstract
Traumatic brain injury (TBI) can result in the development of posttraumatic epilepsy (PTE). Recently, we reported differential alterations in tonic and phasic GABA(A) receptor (GABA(A)R) currents in hippocampal dentate granule cells 90 days after controlled cortical impact (CCI) (Mtchedlishvili et al., 2010). In the present study, we investigated long-term changes in the protein expression of GABA(A)R α1, α4, γ2, and δ subunits, NMDA (NR2B) and AMPA (GluR1) receptor subunits, and heat shock proteins (HSP70 and HSP90) in the hippocampus of Sprague-Dawley rats evaluated by Western blotting in controls, CCI-injured animals without PTE (CCI group), and CCI-injured animals with PTE (PTE group). No differences were found among all three groups for α1 and α4 subunits. Significant reduction of γ2 protein was observed in the PTE group compared to control. CCI caused a 194% and 127% increase of δ protein in the CCI group compared to control (p<0.0001), and PTE (p<0.0001) groups, respectively. NR2B protein was increased in CCI and PTE groups compared to control (p=0.0001, and p=0.011, respectively). GluR1 protein was significantly decreased in CCI and PTE groups compared to control (p=0.003, and p=0.001, respectively), and in the PTE group compared to the CCI group (p=0.036). HSP70 was increased in CCI and PTE groups compared to control (p=0.014, and p=0.005, respectively); no changes were found in HSP90 expression. These results provide for the first time evidence of long-term alterations of GABA(A) and glutamate receptor subunits and a HSP following CCI.
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Affiliation(s)
- Elena A Kharlamov
- Center for Neuroscience Research, Allegheny-Singer Research Institute, Allegheny General Hospital, 320 East North Avenue, Pittsburgh, PA 15212-4772, United States.
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