1
|
Suo JL, Li JY, Zhou CM, Jin RL, Song JH, Wang YL, Huo DS, Tan BH, Li YC. Long-term changes in phospholipids and free fatty acids and the possible subcellular origins for phospholipid degradation in kainic acid-damaged mouse hippocampus. Brain Res 2024; 1845:149243. [PMID: 39293679 DOI: 10.1016/j.brainres.2024.149243] [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: 05/04/2024] [Revised: 08/06/2024] [Accepted: 09/14/2024] [Indexed: 09/20/2024]
Abstract
Kainic acid (KA)-induced excitotoxicity induces acute degradation of phospholipids and release of free fatty acids (FFAs) in rodent hippocampus, but the long-term changes in phospholipids or the subcellular origins of liberated FFAs remain unclarified. Phospholipids and FFAs were determined in KA-damaged mouse hippocampus by enzyme-coupled biochemical assays. The evolution of membrane injuries in the hippocampus was examined by a series of morphological techniques. The levels of phospholipids in the hippocampus decreased shortly after KA injection but recovered close to the control levels at 24 h. The decline in phospholipids was accelerated again from 72 to 120 after KA treatment. The levels of FFAs were negatively related to those of phospholipids, exhibiting a similar but opposite trend of changes. KA treatment caused progressively severe damage to vulnerable neurons, which was accompanied by increased permeability in the cell membrane and increased staining of membrane-bound dyes in the cytoplasm. Double fluorescence staining showed that the latter was partially overlapped with abnormally increased endocytic and autophagic components in damaged neurons. Our results revealed intricate and biphasic changes in phospholipid and FFA levels in KA-damaged hippocampus. Disrupted endomembrane system may be one of the major origins for KA-induced FFA release.
Collapse
Affiliation(s)
- Jia-Le Suo
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China; Department of Human Anatomy, Baotou Medical College, Baotou, Inner Mongolia 014040, PR China
| | - Jing-Yi Li
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China
| | - Cheng-Mei Zhou
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China
| | - Rui-Lin Jin
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China
| | - Jia-Hui Song
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China
| | - Yan-Ling Wang
- Laboratory Teaching Center of Basic Medicine, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China
| | - De-Sheng Huo
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China
| | - Bai-Hong Tan
- Laboratory Teaching Center of Basic Medicine, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China
| | - Yan-Chao Li
- Department of Histology and Embryology, College of Basic Medical Sciences, Norman Bethune Health Science Center of Jilin University, Jilin Province 130021, PR China.
| |
Collapse
|
2
|
Ignacio-Mejía I, Contreras-García IJ, Pichardo-Macías LA, García-Cruz ME, Ramírez Mendiola BA, Bandala C, Medina-Campos ON, Pedraza-Chaverri J, Cárdenas-Rodríguez N, Mendoza-Torreblanca JG. Effect of Levetiracetam on Oxidant-Antioxidant Activity during Long-Term Temporal Lobe Epilepsy in Rats. Int J Mol Sci 2024; 25:9313. [PMID: 39273262 PMCID: PMC11395009 DOI: 10.3390/ijms25179313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2024] [Revised: 08/20/2024] [Accepted: 08/26/2024] [Indexed: 09/15/2024] Open
Abstract
Epilepsy is a disorder characterized by a predisposition to generate seizures. Levetiracetam (LEV) is an antiseizure drug that has demonstrated oxidant-antioxidant effects during the early stages of epilepsy in several animal models. However, the effect of LEV on oxidant-antioxidant activity during long-term epilepsy has not been studied. Therefore, the objective of the present study was to determine the effects of LEV on the concentrations of five antioxidant enzymes and on the levels of four oxidant stress markers in the hippocampus of rats with temporal lobe epilepsy at 5.7 months after status epilepticus (SE). The results revealed that superoxide dismutase (SOD) activity was significantly greater in the epileptic group (EPI) than in the control (CTRL), CTRL + LEV and EPI + LEV groups. No significant differences were found among the groups' oxidant markers. However, the ratios of SOD/hydrogen peroxide (H2O2), SOD/glutathione peroxidase (GPx) and SOD/GPx + catalase (CAT) were greater in the EPI group than in the CTRL and EPI + LEV groups. Additionally, there was a positive correlation between SOD activity and GPx activity in the EPI + LEV group. LEV-mediated modulation of the antioxidant system appears to be time dependent; at 5.7 months after SE, the role of LEV may be as a stabilizer of the redox state.
Collapse
Affiliation(s)
- Iván Ignacio-Mejía
- Laboratorio de Medicina Traslacional, Escuela Militar de Graduados de Sanidad, UDEFA, Mexico City 11200, Mexico
| | - Itzel Jatziri Contreras-García
- Laboratorio de Medicina Traslacional, Escuela Militar de Graduados de Sanidad, UDEFA, Mexico City 11200, Mexico
- Laboratorio de Biología de la Reproducción, Instituto Nacional de Pediatría, Secretaría de Salud, Mexico City 04530, Mexico
| | - Luz Adriana Pichardo-Macías
- Departamento de Fisiología, Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Mexico City 07738, Mexico
| | - Mercedes Edna García-Cruz
- Laboratorio de Neurociencias, Instituto Nacional de Pediatría, Secretaría de Salud, Mexico City 04530, Mexico
| | | | - Cindy Bandala
- Laboratorio de Neurociencia Traslacional Enfermedades Crónicas y Emergentes, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico City 11410, Mexico
| | - Omar Noel Medina-Campos
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | - José Pedraza-Chaverri
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | - Noemí Cárdenas-Rodríguez
- Laboratorio de Neurociencias, Instituto Nacional de Pediatría, Secretaría de Salud, Mexico City 04530, Mexico
| | | |
Collapse
|
3
|
Guo Z. Ganglioside GM1 and the Central Nervous System. Int J Mol Sci 2023; 24:ijms24119558. [PMID: 37298512 DOI: 10.3390/ijms24119558] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/18/2023] [Accepted: 05/04/2023] [Indexed: 06/12/2023] Open
Abstract
GM1 is one of the major glycosphingolipids (GSLs) on the cell surface in the central nervous system (CNS). Its expression level, distribution pattern, and lipid composition are dependent upon cell and tissue type, developmental stage, and disease state, which suggests a potentially broad spectrum of functions of GM1 in various neurological and neuropathological processes. The major focus of this review is the roles that GM1 plays in the development and activities of brains, such as cell differentiation, neuritogenesis, neuroregeneration, signal transducing, memory, and cognition, as well as the molecular basis and mechanisms for these functions. Overall, GM1 is protective for the CNS. Additionally, this review has also examined the relationships between GM1 and neurological disorders, such as Alzheimer's disease, Parkinson's disease, GM1 gangliosidosis, Huntington's disease, epilepsy and seizure, amyotrophic lateral sclerosis, depression, alcohol dependence, etc., and the functional roles and therapeutic applications of GM1 in these disorders. Finally, current obstacles that hinder more in-depth investigations and understanding of GM1 and the future directions in this field are discussed.
Collapse
Affiliation(s)
- Zhongwu Guo
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| |
Collapse
|
4
|
Start Me Up: How Can Surrounding Gangliosides Affect Sodium-Potassium ATPase Activity and Steer towards Pathological Ion Imbalance in Neurons? Biomedicines 2022; 10:biomedicines10071518. [PMID: 35884824 PMCID: PMC9313118 DOI: 10.3390/biomedicines10071518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/21/2022] [Accepted: 06/24/2022] [Indexed: 12/04/2022] Open
Abstract
Gangliosides, amphiphilic glycosphingolipids, tend to associate laterally with other membrane constituents and undergo extensive interactions with membrane proteins in cis or trans configurations. Studies of human diseases resulting from mutations in the ganglioside biosynthesis pathway and research on transgenic mice with the same mutations implicate gangliosides in the pathogenesis of epilepsy. Gangliosides are reported to affect the activity of the Na+/K+-ATPase, the ubiquitously expressed plasma membrane pump responsible for the stabilization of the resting membrane potential by hyperpolarization, firing up the action potential and ion homeostasis. Impaired Na+/K+-ATPase activity has also been hypothesized to cause seizures by several mechanisms. In this review we present different epileptic phenotypes that are caused by impaired activity of Na+/K+-ATPase or changed membrane ganglioside composition. We further discuss how gangliosides may influence Na+/K+-ATPase activity by acting as lipid sorting machinery providing the optimal stage for Na+/K+-ATPase function. By establishing a distinct lipid environment, together with other membrane lipids, gangliosides possibly modulate Na+/K+-ATPase activity and aid in “starting up” and “turning off” this vital pump. Therefore, structural changes of neuronal membranes caused by altered ganglioside composition can be a contributing factor leading to aberrant Na+/K+-ATPase activity and ion imbalance priming neurons for pathological firing.
Collapse
|
5
|
Canto AM, Godoi AB, Matos AHB, Geraldis JC, Rogerio F, Alvim MKM, Yasuda CL, Ghizoni E, Tedeschi H, Veiga DFT, Henning B, Souza W, Rocha CS, Vieira AS, Dias EV, Carvalho BS, Gilioli R, Arul AB, Robinson RAS, Cendes F, Lopes-Cendes I. Benchmarking the proteomic profile of animal models of mesial temporal epilepsy. Ann Clin Transl Neurol 2022; 9:454-467. [PMID: 35238489 PMCID: PMC8994989 DOI: 10.1002/acn3.51533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 02/21/2022] [Accepted: 02/23/2022] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES We compared the proteomic signatures of the hippocampal lesion induced in three different animal models of mesial temporal lobe epilepsy with hippocampal sclerosis (MTLE+HS): the systemic pilocarpine model (PILO), the intracerebroventricular kainic acid model (KA), and the perforant pathway stimulation model (PPS). METHODS We used shotgun proteomics to analyze the proteomes and find enriched biological pathways of the dorsal and ventral dentate gyrus (DG) isolated from the hippocampi of the three animal models. We also compared the proteomes obtained in the animal models to that from the DG of patients with pharmacoresistant MTLE+HS. RESULTS We found that each animal model presents specific profiles of proteomic changes. The PILO model showed responses predominantly related to neuronal excitatory imbalance. The KA model revealed alterations mainly in synaptic activity. The PPS model displayed abnormalities in metabolism and oxidative stress. We also identified common biological pathways enriched in all three models, such as inflammation and immune response, which were also observed in tissue from patients. However, none of the models could recapitulate the profile of molecular changes observed in tissue from patients. SIGNIFICANCE Our results indicate that each model has its own set of biological responses leading to epilepsy. Thus, it seems that only using a combination of the three models may one replicate more closely the mechanisms underlying MTLE+HS as seen in patients.
Collapse
Affiliation(s)
- Amanda M Canto
- Department of Translational Medicine, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil.,Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil
| | - Alexandre B Godoi
- Department of Translational Medicine, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil.,Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil
| | - Alexandre H B Matos
- Department of Translational Medicine, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil.,Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil
| | - Jaqueline C Geraldis
- Department of Translational Medicine, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil.,Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil
| | - Fabio Rogerio
- Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil.,Department of Pathology, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Marina K M Alvim
- Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil.,Department of Neurology, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Clarissa L Yasuda
- Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil.,Department of Neurology, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Enrico Ghizoni
- Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil.,Department of Neurology, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Helder Tedeschi
- Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil.,Department of Neurology, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Diogo F T Veiga
- Department of Translational Medicine, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil.,Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil
| | - Barbara Henning
- Department of Translational Medicine, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil.,Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil
| | - Welliton Souza
- Department of Translational Medicine, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil.,Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil
| | - Cristiane S Rocha
- Department of Translational Medicine, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil.,Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil
| | - André S Vieira
- Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil.,Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Elayne V Dias
- Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil.,Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Benilton S Carvalho
- Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil.,Department of Statistics, Institute of Mathematics, Statistics and Scientific Computing, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Rovilson Gilioli
- Laboratory of Animal Quality Control, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Albert B Arul
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee, 37235, USA
| | - Renã A S Robinson
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee, 37235, USA
| | - Fernando Cendes
- Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil.,Department of Neurology, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Iscia Lopes-Cendes
- Department of Translational Medicine, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil.,Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil
| |
Collapse
|
6
|
Hu D, Guo Y, Wu M, Ma Y, Jing W. Manuscript Title: GDAP2 overexpression affects the development of neurons and dysregulates neuronal excitatory synaptic transmission. Neuroscience 2022; 488:32-43. [DOI: 10.1016/j.neuroscience.2022.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 02/01/2022] [Accepted: 02/07/2022] [Indexed: 11/28/2022]
|
7
|
Hanin A, Baudin P, Demeret S, Roussel D, Lecas S, Teyssou E, Damiano M, Luis D, Lambrecq V, Frazzini V, Decavèle M, Plu I, Bonnefont-Rousselot D, Bittar R, Lamari F, Navarro V. Disturbances of brain cholesterol metabolism: A new excitotoxic process associated with status epilepticus. Neurobiol Dis 2021; 154:105346. [PMID: 33774180 DOI: 10.1016/j.nbd.2021.105346] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/05/2021] [Accepted: 03/22/2021] [Indexed: 11/26/2022] Open
Abstract
The understanding of the excitotoxic processes associated with a severe status epilepticus (SE) is of major importance. Changes of brain cholesterol homeostasis is an emerging candidate for excitotoxicity. We conducted an overall analysis of the cholesterol homeostasis both (i) in fluids and tissues from patients with SE: blood (n = 63, n = 87 controls), CSF (n = 32, n = 60 controls), and post-mortem brain tissues (n = 8, n = 8 controls) and (ii) in a mouse model of SE induced by an intrahippocampal injection of kainic acid. 24-hydroxycholesterol levels were decreased in kainic acid mouse hippocampus and in human plasma and post-mortem brain tissues of patients with SE when compared with controls. The decrease of 24-hydroxycholesterol levels was followed by increased cholesterol levels and by an increase of the cholesterol synthesis. Desmosterol levels were higher in human CSF and in mice and human hippocampus after SE. Lanosterol and dihydrolanosterol levels were higher in plasma from SE patients. Our results suggest that a CYP46A1 inhibition could occur after SE and is followed by a brain cholesterol accumulation. The excess of cholesterol is known to be excitotoxic for neuronal cells and may participate to neurological sequelae observed after SE. This study highlights a new pathophysiological pathway involved in SE excitotoxicity.
Collapse
Affiliation(s)
- Aurélie Hanin
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, INSERM U 1127, CNRS UMR 7225, Paris, France
| | - Paul Baudin
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, INSERM U 1127, CNRS UMR 7225, Paris, France
| | - Sophie Demeret
- AP-HP, Hôpital Pitié-Salpêtrière, DMU Neurosciences 6, Department of Neurology, Neuro-ICU, Paris, France
| | - Delphine Roussel
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, INSERM U 1127, CNRS UMR 7225, Paris, France
| | - Sarah Lecas
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, INSERM U 1127, CNRS UMR 7225, Paris, France
| | - Elisa Teyssou
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, INSERM U 1127, CNRS UMR 7225, Paris, France
| | - Maria Damiano
- AP-HP, Hôpital Pitié-Salpêtrière, DMU Neurosciences 6, Epileptology Unit and Clinical Neurophysiology Department, Paris, France
| | - David Luis
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, INSERM U 1127, CNRS UMR 7225, Paris, France
| | - Virginie Lambrecq
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, INSERM U 1127, CNRS UMR 7225, Paris, France; AP-HP, Hôpital Pitié-Salpêtrière, DMU Neurosciences 6, Epileptology Unit and Clinical Neurophysiology Department, Paris, France; Sorbonne Université, 75006 Paris, France
| | - Valerio Frazzini
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, INSERM U 1127, CNRS UMR 7225, Paris, France; AP-HP, Hôpital Pitié-Salpêtrière, DMU Neurosciences 6, Epileptology Unit and Clinical Neurophysiology Department, Paris, France
| | - Maxens Decavèle
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, 75005 Paris, France; AP-HP, Hôpital Pitié-Salpêtrière, Service de Pneumologie, Médecine Intensive et Réanimation (Département R3S), Paris, France
| | - Isabelle Plu
- Sorbonne Université, 75006 Paris, France; AP-HP, Hôpital Pitié-Salpêtrière, DMU Neurosciences 6, Department of Neuropathology, Paris, France
| | - Dominique Bonnefont-Rousselot
- AP-HP, Hôpital Pitié-Salpêtrière, Department of Metabolic Biochemistry, Paris, France; UTCBS, INSERM U 1267, UMR 8258 CNRS, Université de Paris, Paris, France
| | - Randa Bittar
- AP-HP, Hôpital Pitié-Salpêtrière, Department of Metabolic Biochemistry, Paris, France; Sorbonne Université, UMR_S 1166 ICAN, F-75013 Paris, France
| | - Foudil Lamari
- AP-HP, Hôpital Pitié-Salpêtrière, Department of Metabolic Biochemistry, Paris, France
| | - Vincent Navarro
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, INSERM U 1127, CNRS UMR 7225, Paris, France; AP-HP, Hôpital Pitié-Salpêtrière, DMU Neurosciences 6, Epileptology Unit and Clinical Neurophysiology Department, Paris, France; Sorbonne Université, 75006 Paris, France; Center of Reference for Rare Epilepsies, Pitié-Salpêtrière Hospital, Paris, France.
| | | |
Collapse
|
8
|
Qiu X, Zhang L, Kinoshita M, Lai W, Zheng W, Peng A, Li W, Yang L, Zhang L, Gong M, Chen L. Integrative analysis of non-targeted lipidomic data and brain structural imaging identifies phosphatidylethanolamine associated with epileptogenesis. Metabolomics 2020; 16:110. [PMID: 33037443 DOI: 10.1007/s11306-020-01731-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 09/25/2020] [Indexed: 02/05/2023]
Abstract
INTRODUCTION Epilepsy is a chronic disease, while epileptogenesis is a latent period where brain will be transformed into an epileptic one. Mechanisms of epileptogenesis remain unclear. OBJECTIVES We aim to provide information of hippocampal lipidomic changes related with epileptogenesis in two kindling models. Combining hippocampal structural imaging indices, our study also attempts to assess biochemical alterations as a function of epileptogenesis in a non-invasive way. METHODS We constructed two kinds of chemical kindling models, which have long been used as models of epileptogenesis. Two kindling and one control groups were all subjected to structural imaging acquisition after successfully kindled. Voxel-based morphometry, a postprocessing method for brain imaging data, was used to segment and extract hippocampal gray matter volume for subsequent integrative analysis. LC-MS based lipidomic analysis was applied to identify distinct hippocampal lipidomic profiles between kindling and control groups. Further, we regress hippocampal structural indices on lipids to identify those associated with both epileptogenesis and brain structural changes. RESULTS We report distinct lipidomic profiles between kindling groups and control. A total of 638 lipids were detected in all three groups. Among them were 98 individual lipids, showing significant alterations, in particular lipid class of phosphatidylethanolamine (PE), glucosylceramide and phosphatidylcholine. Hippocampal gray matter volumes were found significant different between groups (P = 0.0223). After combining brain imaging data, we demonstrate several individual PE, namely PE(O-18:1_22:3), PE(O-18:1_22:6) and PE(18:1_18:1), are associated with both epileptogenesis and hippocampal gray matter volume. CONCLUSION This study suggests metabolic pathway of PE might involve in epileptogenesis. Also, for the first time, we link level of PE with structural brain imaging indices, in an attempt to potentiate the futuristic application of noninvasive brain imaging techniques to identify epileptogenesis in its latent period.
Collapse
Affiliation(s)
- Xiangmiao Qiu
- Neurology Department, West China Hospital, Sichuan University, No. 37, Guoxue Road, Chengdu, 610041, Sichuan, China
| | - Lu Zhang
- West China-Washington Mitochondria and Metabolism Research Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Masako Kinoshita
- Department of Neurology, National Hospital Organization, Utano National Hospital, Kyoto, Japan
| | - Wanlin Lai
- Neurology Department, West China Hospital, Sichuan University, No. 37, Guoxue Road, Chengdu, 610041, Sichuan, China
| | - Wen Zheng
- West China-Washington Mitochondria and Metabolism Research Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Anjiao Peng
- Neurology Department, West China Hospital, Sichuan University, No. 37, Guoxue Road, Chengdu, 610041, Sichuan, China
| | - Wanling Li
- Neurology Department, West China Hospital, Sichuan University, No. 37, Guoxue Road, Chengdu, 610041, Sichuan, China
| | - Linghui Yang
- Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Lin Zhang
- Neurology Department, West China Hospital, Sichuan University, No. 37, Guoxue Road, Chengdu, 610041, Sichuan, China
| | - Meng Gong
- West China-Washington Mitochondria and Metabolism Research Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Lei Chen
- Neurology Department, West China Hospital, Sichuan University, No. 37, Guoxue Road, Chengdu, 610041, Sichuan, China.
| |
Collapse
|
9
|
Sipione S, Monyror J, Galleguillos D, Steinberg N, Kadam V. Gangliosides in the Brain: Physiology, Pathophysiology and Therapeutic Applications. Front Neurosci 2020; 14:572965. [PMID: 33117120 PMCID: PMC7574889 DOI: 10.3389/fnins.2020.572965] [Citation(s) in RCA: 153] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 08/31/2020] [Indexed: 12/12/2022] Open
Abstract
Gangliosides are glycosphingolipids highly abundant in the nervous system, and carry most of the sialic acid residues in the brain. Gangliosides are enriched in cell membrane microdomains ("lipid rafts") and play important roles in the modulation of membrane proteins and ion channels, in cell signaling and in the communication among cells. The importance of gangliosides in the brain is highlighted by the fact that loss of function mutations in ganglioside biosynthetic enzymes result in severe neurodegenerative disorders, often characterized by very early or childhood onset. In addition, changes in the ganglioside profile (i.e., in the relative abundance of specific gangliosides) were reported in healthy aging and in common neurological conditions, including Huntington's disease (HD), Alzheimer's disease (AD), Parkinson's disease (PD), amyotrophic lateral sclerosis (ALS), stroke, multiple sclerosis and epilepsy. At least in HD, PD and in some forms of epilepsy, experimental evidence strongly suggests a potential role of gangliosides in disease pathogenesis and potential treatment. In this review, we will summarize ganglioside functions that are crucial to maintain brain health, we will review changes in ganglioside levels that occur in major neurological conditions and we will discuss their contribution to cellular dysfunctions and disease pathogenesis. Finally, we will review evidence of the beneficial roles exerted by gangliosides, GM1 in particular, in disease models and in clinical trials.
Collapse
Affiliation(s)
- Simonetta Sipione
- Department of Pharmacology, Faculty of Medicine and Dentistry, Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
| | | | | | | | | |
Collapse
|
10
|
Leukocyte expression profiles reveal gene sets with prognostic value for seizure-free outcome following stereotactic laser amygdalohippocampotomy. Sci Rep 2019; 9:1086. [PMID: 30705324 PMCID: PMC6355811 DOI: 10.1038/s41598-018-37763-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 12/13/2018] [Indexed: 02/08/2023] Open
Abstract
Among patients with intractable epilepsy, the most commonly performed surgical procedure is craniotomy for amygdalohippocampectomy (AH). Stereotactic laser amygdalohippocampotomy (SLAH) has also been recently employed as a minimally invasive treatment for intractable temporal lobe epilepsy (TLE). Among patients treated with AH and SLAH approximately 65% and 54% of patients become seizure-free, respectively. Therefore, selection criteria for surgical candidates with improved prognostic value for post-operative seizure-free outcome are greatly needed. In this study, we perform RNA sequencing (RNA-Seq) on whole blood leukocyte samples taken from 16 patients with intractable TLE prior to SLAH to test the hypothesis that pre-operative leukocyte RNA expression profiles are prognostic for post-operative seizure outcome. Multidimensional scaling analysis of the RNA expression data indicated separate clustering of patients with seizure free (SF) and non-seizure-free (NSF) outcomes. Differential expression (DE) analysis performed on SF versus NSF groups revealed 24 significantly differentially expressed genes (≥2.0-fold change, p-value < 0.05, FDR <0.05). Network and pathway analyses identified differential activation of pathways involved in lipid metabolism, morphology of oligodendrocytes, inflammatory response, and development of astrocytes. These results suggest that pre-operative leukocyte expression profiles have prognostic value for seizure outcome following SLAH.
Collapse
|
11
|
Saldanha GB, Saldanha GB, de Sousa MRSC, Oliveira GLDS, da Silva APDSC, David JM, David JP. Absence of toxicity in Swiss mice following treatment with 7-acetoxy-4-aryl-3,4-dihydrocoumarin: Acute and repeated-dose toxicity study. Regul Toxicol Pharmacol 2018; 94:75-82. [DOI: 10.1016/j.yrtph.2018.01.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 10/29/2017] [Accepted: 01/04/2018] [Indexed: 10/18/2022]
|
12
|
Lerner R, Post JM, Ellis SR, Vos DRN, Heeren RMA, Lutz B, Bindila L. Simultaneous lipidomic and transcriptomic profiling in mouse brain punches of acute epileptic seizure model compared to controls. J Lipid Res 2017; 59:283-297. [PMID: 29208697 DOI: 10.1194/jlr.m080093] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 11/28/2017] [Indexed: 01/07/2023] Open
Abstract
In this study, we report the development of a dual extraction protocol for RNA and lipids, including phospholipids, endocannabinoids, and arachidonic acid, at high spatial resolution, e.g., brain punches obtained from whole frozen brains corresponding to four brain subregions: dorsal hippocampus, ventral hippocampus, basolateral amygdala, and hypothalamus. This extraction method combined with LC/multiple reaction monitoring for lipid quantifi-cation and quantitative PCR for RNA investigation allows lipidomic and transcriptomic profiling from submilligram amounts of tissue, thus benefiting the time and animal costs for analysis and the data reliability due to prevention of biological variability between animal batches and/or tissue heterogeneity, as compared with profiling in distinct animal batches. Moreover, the method allows a higher extraction efficiency and integrity preservation for RNA, while allowing concurrently quantitative analysis of low and high abundant lipids. The method was applied for brain punches obtained 1 h after kainic acid-induced epileptic seizures in mice (n = 10) compared with controls (n = 10), and enabled the provision of valuable new insights into the subregional lipid and RNA changes with epilepsy, highlighting its potential as a new viable tool in quantitative neurobiology.
Collapse
Affiliation(s)
- Raissa Lerner
- University Medical Center of Johannes Gutenberg University Mainz, Institute of Physiological Chemistry, 55128 Mainz, Germany; and
| | - Julia M Post
- University Medical Center of Johannes Gutenberg University Mainz, Institute of Physiological Chemistry, 55128 Mainz, Germany; and
| | - Shane R Ellis
- Maastricht MultiModal Molecular Imaging Institute (M4I), Maastricht University, 6229 ER Maastricht, The Netherlands
| | - D R Naomi Vos
- Maastricht MultiModal Molecular Imaging Institute (M4I), Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Ron M A Heeren
- Maastricht MultiModal Molecular Imaging Institute (M4I), Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Beat Lutz
- University Medical Center of Johannes Gutenberg University Mainz, Institute of Physiological Chemistry, 55128 Mainz, Germany; and
| | - Laura Bindila
- University Medical Center of Johannes Gutenberg University Mainz, Institute of Physiological Chemistry, 55128 Mainz, Germany; and
| |
Collapse
|
13
|
Benedito RB, Alves MF, Pereira WB, de Arruda Torres P, Costa JP, da Rocha Tomé A, de Cássia da Silveira e Sá R, de Sousa DP, Ferreira PMP, de Freitas RM, de Fatima F. Melo Diniz M, de Almeida RN. Perillyl Alcohol: Antinociceptive Effects and Histopathological Analysis in Rodent Brains. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200902] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Perillyl alcohol (PA) is a natural compound found in essential oils. In this study, the antinociceptive activity of PA was evaluated using acetic acid and formalin tests. The involvement of the opioid system in its mechanism of action was investigated. Potential histological changes in the hippocampus and striatum were also assessed. In the acetic acid induced writhing tests, the mice pretreated with PA exhibited significant reductions in writhing. PA inhibited formalin injected paw licking response, and naloxone partially reversed the antinociceptive activity of perillyl alcohol during the writhing test. And as for the histopathological evaluation, PA did not cause significant tissue changes. This study suggests that PA possesses antinociceptive effects without significant hippocampus or striatum neurotoxicity, and that its activity involves opioid.
Collapse
Affiliation(s)
- Rubens Batista Benedito
- Federal University of Paraíba, Research Institute for Drugs and Medicines, P.O. Box 5009, CEP 58.051–900, João Pessoa, Paraíba, Brazil
| | - Mateus Feitosa Alves
- Federal University of Paraíba, Research Institute for Drugs and Medicines, P.O. Box 5009, CEP 58.051–900, João Pessoa, Paraíba, Brazil
| | - Wendel Batista Pereira
- Federal University of Paraíba, Research Institute for Drugs and Medicines, P.O. Box 5009, CEP 58.051–900, João Pessoa, Paraíba, Brazil
| | - Paula de Arruda Torres
- Federal University of Paraíba, Research Institute for Drugs and Medicines, P.O. Box 5009, CEP 58.051–900, João Pessoa, Paraíba, Brazil
| | - Jéssica Pereira Costa
- Research Laboratory in Experimental Neurochemistry, Post-Graduation Program in Pharmaceutical Science, Federal University of Piauí, CEP 64.049–550, Teresina, Piauí, Brazil
| | - Adriana da Rocha Tomé
- State University of Ceará, Av. Paranjana, 1700, Campus of Itaperi, CEP 60.740-000, Fortaleza, Ceará, Brazil
| | - Rita de Cássia da Silveira e Sá
- Federal University of Paraíba, Research Institute for Drugs and Medicines, P.O. Box 5009, CEP 58.051–900, João Pessoa, Paraíba, Brazil
| | - Damião Pergentino de Sousa
- Federal University of Paraíba, Research Institute for Drugs and Medicines, P.O. Box 5009, CEP 58.051–900, João Pessoa, Paraíba, Brazil
| | - Paulo Michel Pinheiro Ferreira
- Research Laboratory in Experimental Neurochemistry, Post-Graduation Program in Pharmaceutical Science, Federal University of Piauí, CEP 64.049–550, Teresina, Piauí, Brazil
| | - Rivelilson Mendes de Freitas
- Research Laboratory in Experimental Neurochemistry, Post-Graduation Program in Pharmaceutical Science, Federal University of Piauí, CEP 64.049–550, Teresina, Piauí, Brazil
| | - Margareth de Fatima F. Melo Diniz
- Federal University of Paraíba, Research Institute for Drugs and Medicines, P.O. Box 5009, CEP 58.051–900, João Pessoa, Paraíba, Brazil
| | - Reinaldo Nóbrega de Almeida
- Federal University of Paraíba, Research Institute for Drugs and Medicines, P.O. Box 5009, CEP 58.051–900, João Pessoa, Paraíba, Brazil
| |
Collapse
|
14
|
Lerner R, Post J, Loch S, Lutz B, Bindila L. Targeting brain and peripheral plasticity of the lipidome in acute kainic acid-induced epileptic seizures in mice via quantitative mass spectrometry. Biochim Biophys Acta Mol Cell Biol Lipids 2016; 1862:255-267. [PMID: 27871881 DOI: 10.1016/j.bbalip.2016.11.008] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 10/21/2016] [Accepted: 11/14/2016] [Indexed: 11/25/2022]
Abstract
Epilepsy is a highly common chronic neurological disorder, manifested in many different types, affecting ~1% of the worldwide human population. The molecular mechanisms of epileptogenesis have not yet been clarified, and pharmacoresistance exhibited by 30-40% of epilepsy patients remains a major obstacle in medical care. Growing evidence indicates a role of lipid signalling pathways in epileptogenesis, thus lipid signals emerge as potential biomarkers for the onset and evolving course of the epileptic disorder, as well as potential therapeutic agents and targets. For this purpose, we applied a lipidomic strategy to unravel lipid alterations in brain regions, periphery tissues and plasma that are specific for acute epileptic seizures in mice at 1h after seizure induction by systemic kainic acid injection as compared to vehicle controls. Specifically, levels of (i) selected phospholipids and sphingomyelins, (ii) the endocannabinoids anandamide (AEA) and 2-arachidonoyl glycerol (2-AG), and the endocannabinoid-related compounds oleoylethanolamide (OEA) and palmitoylethanolamide (PEA), (iii) arachidonic acid (AA), (iv) selected eicosanoids, and (v) fatty acyl content of lipidome were determined in pulverized tissues from six brain regions of kainic acid induced epileptic seizure models and vehicle controls: hypothalamus, hippocampus, thalamus, striatum, cerebellum and cerebral cortex, and from peripheral organs, such as heart and lungs, and in plasma. Alterations in lipid levels after acute epileptic seizures as compared to non-seizure controls were found to be brain region- and periphery tissue-specific, including specific plasma lipid correlates, highlighting their value as marker candidates in translational research studies, and/or drug discovery and response monitoring.
Collapse
Affiliation(s)
- Raissa Lerner
- Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University Mainz, Duesbergweg 6, 55128 Mainz, Germany
| | - Julia Post
- Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University Mainz, Duesbergweg 6, 55128 Mainz, Germany
| | - Sebastian Loch
- Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University Mainz, Duesbergweg 6, 55128 Mainz, Germany
| | - Beat Lutz
- Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University Mainz, Duesbergweg 6, 55128 Mainz, Germany
| | - Laura Bindila
- Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University Mainz, Duesbergweg 6, 55128 Mainz, Germany.
| |
Collapse
|
15
|
Aline DAO, Maria IL, Adriano JEMCF, Emiliano RVR, Camila NDCL, Edith TV, Alana GDS, Klistenes ADL, Francisca EAFC, Danielle MG, Marta MDFCAF. Antioxidant properties of antiepileptic drugs levetiracetam and clonazepam in mice brain after in vitro-induced oxidative stress. ACTA ACUST UNITED AC 2016. [DOI: 10.5897/ajpp2015.4358] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
16
|
RNA sequencing reveals region-specific molecular mechanisms associated with epileptogenesis in a model of classical hippocampal sclerosis. Sci Rep 2016; 6:22416. [PMID: 26935982 PMCID: PMC4776103 DOI: 10.1038/srep22416] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 02/15/2016] [Indexed: 01/20/2023] Open
Abstract
We report here the first complete transcriptome analysis of the dorsal (dDG) and ventral dentate gyrus (vDG) of a rat epilepsy model presenting a hippocampal lesion with a strict resemblance to classical hippocampal sclerosis (HS). We collected the dDG and vDG by laser microdissection 15 days after electrical stimulation and performed high-throughput RNA-sequencing. There were many differentially regulated genes, some of which were specific to either of the two sub-regions in stimulated animals. Gene ontology analysis indicated an enrichment of inflammation-related processes in both sub-regions and of axonal guidance and calcium signaling processes exclusively in the vDG. There was also a differential regulation of genes encoding molecules involved in synaptic function, neural electrical activity and neuropeptides in stimulated rats. The data presented here suggests, in the time point analyzed, a remarkable interaction among several molecular components which takes place in the damaged hippocampi. Furthermore, even though similar mechanisms may function in different regions of the DG, the molecular components involved seem to be region specific.
Collapse
|
17
|
Machado KC, Oliveira GLS, Machado KC, Islam MT, Junior ALG, De Sousa DP, Freitas RM. Anticonvulsant and behavioral effects observed in mice following treatment with an ester derivative of ferulic acid: Isopentyl ferulate. Chem Biol Interact 2015; 242:273-9. [PMID: 26456888 DOI: 10.1016/j.cbi.2015.10.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 09/04/2015] [Accepted: 10/05/2015] [Indexed: 12/13/2022]
Abstract
The objective of this study was to evaluate the potential anticonvulsant effect of isopentyl ferulate, a new ester derived from ferulic acid in mice (Mus musculus) subjected to two models of induced seizures. According to the results obtained, the IF at doses of 25, 50 and 75 mg/kg (i.p.) showed protective effect against induced seizures by pilocarpine (400 mg/kg, i.p.) and pentylenetetrazole (70 mg/kg, i.p.). In the two animal models of seizures, the pretreatment of the IF (25, 50 and 75 mg/kg) with flumazenil blocked the anticonvulsant effect, suggesting that the mechanism of action of this ester derived of ferulic acid may be related to activity in the benzodiazepine-binding site of the GABAA receptor (γ-aminobutyric acid, type A). In addition to the anticonvulsant effect, behavioral changes as neurotoxicity indication were assessed by using the rota rod and open field tests. The results obtained showed that the IF (25, 50 and 75 mg/kg) does not induce significant changes in locomotor activity and motor coordination when compared with the control group, unlike the results presented by diazepam. Thus, these results demonstrate a new pharmacological knowledge of IF with potential application against epileptic seizures. However, further studies are needed to elucidate other neurobiological mechanisms underlying epilepsy.
Collapse
Affiliation(s)
- Keylla C Machado
- Post-Graduation Program in Pharmacology, Federal University of Piauí, CEP 64.049-550, Teresina, Piauí, Brazil
| | - George Laylson S Oliveira
- Laboratory of Research in Experimental Neurochemistry of Post-Graduation Program in Pharmaceutical Sciences, Federal University of Piauí, CEP 64.049-550, Teresina, Piauí, Brazil
| | - Kátia C Machado
- Laboratory of Research in Experimental Neurochemistry of Post-Graduation Program in Pharmaceutical Sciences, Federal University of Piauí, CEP 64.049-550, Teresina, Piauí, Brazil
| | - Md Torequl Islam
- Laboratory of Research in Experimental Neurochemistry of Post-Graduation Program in Pharmaceutical Sciences, Federal University of Piauí, CEP 64.049-550, Teresina, Piauí, Brazil
| | - Antonio Luiz G Junior
- Laboratory of Research in Experimental Neurochemistry of Post-Graduation Program in Pharmaceutical Sciences, Federal University of Piauí, CEP 64.049-550, Teresina, Piauí, Brazil
| | - Damião P De Sousa
- Department of Pharmaceutical Science, Federal University of Paraíba, CEP 58.051-900, João Pessoa, Paraíba, Brazil
| | - Rivelilson M Freitas
- Post-Graduation Program in Pharmacology, Federal University of Piauí, CEP 64.049-550, Teresina, Piauí, Brazil; Laboratory of Research in Experimental Neurochemistry of Post-Graduation Program in Pharmaceutical Sciences, Federal University of Piauí, CEP 64.049-550, Teresina, Piauí, Brazil.
| |
Collapse
|
18
|
Chwiej J, Skoczen A, Janeczko K, Kutorasinska J, Matusiak K, Figiel H, Dumas P, Sandt C, Setkowicz Z. The biochemical changes in hippocampal formation occurring in normal and seizure experiencing rats as a result of a ketogenic diet. Analyst 2015; 140:2190-204. [DOI: 10.1039/c4an01857e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, ketogenic diet-induced biochemical changes occurring in normal and epileptic hippocampal formations were compared.
Collapse
Affiliation(s)
- Joanna Chwiej
- AGH-University of Science and Technology
- Faculty of Physics and Applied Computer Science
- Krakow
- Poland
| | - Agnieszka Skoczen
- AGH-University of Science and Technology
- Faculty of Physics and Applied Computer Science
- Krakow
- Poland
| | | | - Justyna Kutorasinska
- AGH-University of Science and Technology
- Faculty of Physics and Applied Computer Science
- Krakow
- Poland
| | - Katarzyna Matusiak
- AGH-University of Science and Technology
- Faculty of Physics and Applied Computer Science
- Krakow
- Poland
| | - Henryk Figiel
- AGH-University of Science and Technology
- Faculty of Physics and Applied Computer Science
- Krakow
- Poland
| | | | | | | |
Collapse
|
19
|
Srimontri P, Endo S, Sakamoto T, Nakayama Y, Kurosaka A, Itohara S, Hirabayashi Y, Kato K. Sialyltransferase ST3Gal IV deletion protects against temporal lobe epilepsy. J Neurochem 2014; 131:675-87. [PMID: 25066807 DOI: 10.1111/jnc.12838] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 07/23/2014] [Accepted: 07/23/2014] [Indexed: 11/27/2022]
Abstract
Temporal lobe epilepsy (TLE) often becomes refractory, and patients with TLE show a high incidence of psychiatric symptoms, including anxiety and depression. Therefore, it is necessary to identify molecules that were previously unknown to contribute to epilepsy and its associated disorders. We previously found that the sialyltransferase ST3Gal IV is up-regulated within the neural circuits through which amygdala-kindling stimulation propagates epileptic seizures. In contrast, this study demonstrated that kindling stimulation failed to evoke epileptic seizures in ST3Gal IV-deficient mice. Furthermore, approximately 80% of these mice failed to show tonic-clonic seizures with stimulation, whereas all littermate wild-type mice showed tonic-clonic seizures. This indicates that the loss of ST3Gal IV does not cause TLE in mice. Meanwhile, ST3Gal IV-deficient mice exhibited decreased acclimation in the open field test, increased immobility in the forced swim test, enhanced freezing during delay auditory fear conditioning, and sleep disturbances. Thus, the loss of ST3Gal IV modulates anxiety-related behaviors. These findings indicate that ST3Gal IV is a key molecule in the mechanisms underlying anxiety - a side effect of TLE - and may therefore also be an effective target for treating epilepsy, acting through the same circuits.
Collapse
Affiliation(s)
- Paitoon Srimontri
- Faculty of Life Sciences, Kyoto Sangyo University, Motoyama, Kamigamo, Kita-ku, Kyoto, Japan
| | | | | | | | | | | | | | | |
Collapse
|
20
|
Kim HJ, Song W, Kim JS, Jin EH, Kwon MS, Park S. Synergic Effect of Exercise and Lipoic Acid on Protection Against Kainic Acid Induced Seizure Activity and Oxidative Stress in Mice. Neurochem Res 2014; 39:1579-84. [DOI: 10.1007/s11064-014-1350-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 05/26/2014] [Accepted: 05/27/2014] [Indexed: 01/22/2023]
|
21
|
Chwiej J, Kutorasinska J, Janeczko K, Gzielo-Jurek K, Uram L, Appel K, Simon R, Setkowicz Z. Progress of elemental anomalies of hippocampal formation in the pilocarpine model of temporal lobe epilepsy--an X-ray fluorescence microscopy study. Anal Bioanal Chem 2012; 404:3071-80. [PMID: 23052869 PMCID: PMC3501183 DOI: 10.1007/s00216-012-6425-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Revised: 09/12/2012] [Accepted: 09/13/2012] [Indexed: 12/21/2022]
Abstract
In the present paper, X-ray fluorescence microscopy was applied to follow the processes occurring in rat hippocampal formation during the post-seizure period. In the study, one of the status epilepticus animal models of epilepsy was used, namely the model of temporal lobe epilepsy with pilocarpine-induced seizures. In order to analyze the dynamics of seizure-induced elemental changes, the samples taken from seizure-experiencing animals 3 h and 1, 4, and 7 days after proconvulsive agent administration were analyzed. The obtained results confirmed the utility of X-ray fluorescence microscopy in the research of mechanisms involved in the pathogenesis and progress of epilepsy. The topographic and quantitative elemental analysis of hippocampal formations from different periods of epileptogenesis showed that excitotoxicity, mossy fibers sprouting, and iron-induced oxidative stress may be the processes responsible for seizure-induced neurodegenerative changes and spontaneous recurrent seizures occurring in the chronic phase of the pilocarpine model. The analysis of correlations between the recorded elemental anomalies and quantitative parameters describing animal behavior in the acute period of pilocarpine-induced status epilepticus showed that the areal densities of selected elements measured in the latent period strongly depend on the progress of the acute phase. Especially important seem to be the observations done for Ca and Zn levels which suggest that the intensity of the pathological processes such as excitotoxicity and mossy fibers sprouting depend on the total time of seizure activity. These results as well as dependencies found between the levels of S, K, and Cu and the intensity of maximal seizures clearly confirm how important it is to control the duration and intensity of seizures in clinical practice.
Collapse
Affiliation(s)
- J Chwiej
- Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland.
| | | | | | | | | | | | | | | |
Collapse
|
22
|
Ahmad A, Rasheed N, Gupta P, Singh S, Siripurapu KB, Ashraf GM, Kumar R, Chand K, Maurya R, Banu N, Al-Sheeha M, Palit G. Novel Ocimumoside A and B as anti-stress agents: modulation of brain monoamines and antioxidant systems in chronic unpredictable stress model in rats. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2012; 19:639-647. [PMID: 22455995 DOI: 10.1016/j.phymed.2012.02.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Revised: 01/04/2012] [Accepted: 02/18/2012] [Indexed: 05/31/2023]
Abstract
Therapies targeting central stress mechanisms are fundamental for the development of successful treatment strategies. Ocimum sanctum (OS) is an Indian medicinal plant traditionally used for the treatment of various stress-related conditions. Previously, we have isolated and characterized three OS compounds; Ocimarin, Ocimumoside A and Ocimumoside B. However, their role in modulating chronic stress-induced central changes is unexplored. Thus, in the present study the efficacy of these OS compounds have been evaluated on the chronic unpredictable stress (CUS)-induced alterations in the monoaminergic and antioxidant systems in the frontal cortex, striatum and hippocampus, along with the changes in the plasma corticosterone levels. CUS (two different types of stressors daily for seven days) resulted in a significant elevation of plasma corticosterone level, which was reversed to control levels by pretreatment with Ocimumoside A and B (40 mg/kg p.o.), while Ocimarin showed no effect. The levels of NA, DA and 5-HT were significantly decreased in all the three brain regions by CUS, with a selective increase of DA metabolites. A significant decrease in the glutathione (GSH) content, the activities of superoxide dismutase and catalase with a significant increase in the glutathione peroxidase activity and lipid peroxidation was observed in all the three regions of the brain by CUS. The OS compounds alone did not cause any significant change in the baseline values of these parameters. However, Ocimumoside A and B (40 mg/kg body p.o.) attenuated these CUS-induced alterations with an efficacy similar to that of standard anti-stress (Panax quinquefolium; 100 mg/kg p.o.) and antioxidant (Melatonin; 20 mg/kg i.p.) drugs. While, Ocimarin failed to modulate these CUS-induced alterations. Therefore, this is the first report which identified the anti-stress activity of novel Ocimumoside A and B at the level of central monoamines and antioxidant properties, implicating their therapeutic importance in the prevention of stress-related disorders.
Collapse
Affiliation(s)
- Ausaf Ahmad
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow, Uttar Pradesh, India.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
da Costa Júnior JS, de Almeida AAC, Costa JP, das Graças Lopes Citó AM, Saffi J, de Freitas RM. Superoxide dismutase and catalase activities in rat hippocampus pretreated with garcinielliptone FC from Platonia insignis. PHARMACEUTICAL BIOLOGY 2012; 50:453-457. [PMID: 22129154 DOI: 10.3109/13880209.2011.611146] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
CONTEXT Platonia insignis Mart. (Clusiaceae), commonly known as "bacuri," is a timber and fruit native species of the Brazilian Amazon. Some plants of the Clusiaceae family have their pharmacological properties associated with the presence of xanthone and polycyclic polyprenylated acylphloroglucinols derivatives, which have antioxidant and anticarcinogenic activities. OBJECTIVE The aim of this study was to assess the in vivo potential of extracts, fractions, and garcinielliptone FC isolated from of Platonia insignis seeds as a natural antioxidant. MATERIALS AND METHODS Male Wistar rats (250-280 g; 2 months old) were treated with Tween 80 0.05% dissolved in 0.9% saline (i.p, vehicle - control group), ethanol extract (EE), hexane extract (HE), dichloromethane fraction (DMF), ethyl acetate fraction (EAF), and garcinielliptone FC (GFC) isolated from P. insignis at doses 2 mg/kg (i.p.). All groups were observed for 24 h after the treatment. The antioxidant enzymatic activities [superoxide dismutase (SOD) and catalase (CAT)] were measured using spectrophotometric methods. RESULTS There were no marked alterations in SOD and CAT activities in rat hippocampus after pretreatment with EE, HE, DMF, EAF, and GFC. However, the pretreatment with GFC induced a significantly increase of 13, 17, 19, and 13% in SOD activities when compared to EE, HE, DMF, or EAF groups, respectively. DISCUSSION AND CONCLUSION Our findings strongly support the hypothesis that GFC isolated from P. insignis has a significant potential to be used as a natural antioxidant agent probably due to the modulation of enzymatic activity of hippocampal SOD.
Collapse
Affiliation(s)
- Joaquim S da Costa Júnior
- Laboratory of Genetic Toxicology, Post-Graduation Program in Genetic and Applied Toxicology, Lutheran University of Brazil, Canoas, RS, Brazil
| | | | | | | | | | | |
Collapse
|
24
|
de Oliveira Júnior WM, Benedito RB, Pereira WB, de Arruda Torres P, Ramos CAF, Costa JP, da Rocha Tomé A, de Sousa DP, de Freitas RM, de Fatima Formiga Melo Diniz M, de Almeida RN. Farnesol: antinociceptive effect and histopathological analysis of the striatum and hippocampus of mice. Fundam Clin Pharmacol 2012; 27:419-26. [DOI: 10.1111/j.1472-8206.2012.01030.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
25
|
Al-Shorbagy MY, El Sayeh BM, Abdallah DM. Diverse effects of variant doses of dexamethasone in lithium–pilocarpine induced seizures in rats. Can J Physiol Pharmacol 2012; 90:13-21. [DOI: 10.1139/y11-096] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Corticosteroids are used in the management of several epileptic aliments; however, their effectiveness in combating seizures remains controversial, with pro- and anti-convulsive effects ascribed. The current study aimed to address the modulatory effect of dexamethasone (DEX) utilizing 3 dose levels (5, 10, and 20 mg/kg body mass of male Wistar rat) in the rat lithium–pilocarpine (Li-PIL) epilepsy model. Li-PIL induced seizures that were associated with neuronal cell loss in the CA3 region, and increased prostaglandin (PG)E2, tumor necrosis factor (TNF)-α, interleukin (IL)-10, nitric oxide, and neutrophil infiltration in the hippocampus. However, Li-PIL compromised the oxidant–antioxidant balance of the hippocampus. Effective anticonvulsant activity was only observed with10 mg DEX/kg body mass, which reduced seizure production and incidence, as well as neuronal cell loss in the CA3 region. At this anticonvulsant dose, enhancements in the antioxidant system and IL-10, as well as suppression of altered inflammatory markers were observed. Conversely, doubling the dose showed a tendency to shorten seizure latency, and neither affected seizure incidence nor CA3 neuronal cell loss. These effects were associated with an increase in levels of PGE2 and TNF-α. The present study found a lack of protection at 5 mg DEX/kg body mass, an anticonvulsant effect at 10 mg/kg, and a loss of protection at 20 mg/kg in the Li-PIL epilepsy model, which indicates that there is an optimal dose of DEX for preventing the induction of seizures.
Collapse
Affiliation(s)
- Muhammad Y. Al-Shorbagy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kasr El-Aini Str, 11562 Cairo, Egypt
| | - Bahia M. El Sayeh
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kasr El-Aini Str, 11562 Cairo, Egypt
| | - Dalaal M. Abdallah
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kasr El-Aini Str, 11562 Cairo, Egypt
| |
Collapse
|
26
|
Júnior JSDC, de Almeida AAC, Tomé ADR, Citó AMDGL, Saffi J, de Freitas RM. Evaluation of possible antioxidant and anticonvulsant effects of the ethyl acetate fraction from Platonia insignis Mart. (Bacuri) on epilepsy models. Epilepsy Behav 2011; 22:678-84. [PMID: 22056341 DOI: 10.1016/j.yebeh.2011.09.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Revised: 09/16/2011] [Accepted: 09/16/2011] [Indexed: 11/29/2022]
Abstract
The aim of present study was to examine the effects of the ethyl acetate fraction (EAF) from Platonia insignis on lipid peroxidation level, nitrite formation, and superoxide dismutase and catalase activities in rat striatum prior to pilocarpine-induced seizures as well as to explore its anticonvulsant activity in adult rats prior to pentylenetetrazole (PTZ)- and picrotoxin (PIC)-induced seizures. Wistar rats were treated with vehicle, atropine (25mg/kg), EAF (0.1, 1, and 10mg/kg), pilocarpine (400mg/kg, P400 group), PTZ (60 mg/kg, PTZ group), PIC (8 mg/kg, PIC group), atropine+P400, EAF+P400, EAF+PTZ, or EAF+PIC. Significant decreases in number of crossings and rearings were observed in the P400 group. The EAF 10+P400 group also had significant increases in these parameters. In addition, in rats treated with P400, there were significant increases in lipid peroxidation and nitrite levels; however, there were no alterations in SOD and catalase activities. In the EAF 10+P400 group, lipid peroxidation and nitrite levels significantly decreased and SOD and catalase activities significantly increased after pilocarpine-induced seizures. Additionally, effects of the EAF were evaluated in PTZ and PIC models. EAF did not increase the latency to development of convulsions induced with PTZ and PIC at the doses tested. Our findings strongly support the hypothesis that EAF does not have anticonvulsant activity in the different models of epilepsy studied. Our results indicate that in the in vivo model of pilocarpine-induced seizures, EAF has antioxidant activity, but not anticonvulsant properties at the doses tested.
Collapse
Affiliation(s)
- Joaquim Soares da Costa Júnior
- Laboratory of Genetic Toxicology, Postgraduate Program in Genetic and Applied Toxicology, Lutheran University of Brazil, Canoas, RS, Brazil
| | | | | | | | | | | |
Collapse
|
27
|
de Freitas RM, Gomes KN, Saldanha GB. Neuropharmacological effects of lipoic acid and ubiquinone on the mRNA level of interleukin-1β and acetylcholinesterase activity in rat hippocampus after seizures. Fundam Clin Pharmacol 2011; 25:354-61. [DOI: 10.1111/j.1472-8206.2010.00838.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
28
|
de Freitas RM, Feng D, Jordán J. Neuropharmacological effects of lipoic acid and ubiquinone on δ-aminolevulinic dehydratase, Na+, K+-ATPase, and Mg2+-ATPase activities in rat hippocampus after pilocarpine-induced seizures. Fundam Clin Pharmacol 2011; 25:211-6. [DOI: 10.1111/j.1472-8206.2010.00841.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
29
|
de Freitas RM, de Oliveira Silva F, Saldanha GB, Jordán J. Lipoic acid alters amino acid neurotransmitters content in rat hippocampus after pilocarpine-induced seizures. Fundam Clin Pharmacol 2010; 25:485-92. [DOI: 10.1111/j.1472-8206.2010.00862.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
30
|
de Sales Santos ÍM, da Rocha Tomé A, Feitosa CM, de Souza GF, Feng D, de Freitas RM, Jordán J. Lipoic acid blocks seizures induced by pilocarpine via increases in δ-aminolevulinic dehydratase and Na+, K+-ATPase activity in rat brain. Pharmacol Biochem Behav 2010; 95:88-91. [DOI: 10.1016/j.pbb.2009.12.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2009] [Revised: 12/01/2009] [Accepted: 12/14/2009] [Indexed: 11/29/2022]
|