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Chyra M, Roczniak W, Świętochowska E, Dudzińska M, Oświęcimska J. The Effect of the Ketogenic Diet on Adiponectin, Omentin and Vaspin in Children with Drug-Resistant Epilepsy. Nutrients 2022; 14:nu14030479. [PMID: 35276837 PMCID: PMC8839826 DOI: 10.3390/nu14030479] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/14/2022] [Accepted: 01/20/2022] [Indexed: 02/07/2023] Open
Abstract
Background: Changes in adipokine secretion may be involved in the anti-epileptic effect of a ketogenic diet (KD) in drug-resistant epilepsy (DRE). Objectives: The assessment of the influence of KD on serum adiponectin, omentin-1, and vaspin in children with DRE. Methods: Anthropometric measurements (weight, height, BMI, and waist-to-hip circumference ratio) were performed in 72 children aged 3–9 years, divided into 3 groups: 24 children with DRE treated with KD, 26—treated with valproic acid (VPA), and a control group of 22 children. Biochemical tests included fasting glucose, insulin, beta-hydroxybutyric acid, lipid profile, aminotransferases activities, and blood gasometry. Serum levels of adiponectin, omentin-1 and vaspin were assayed using commercially available ELISA tests. Results: Serum levels of adiponectin and omentin-1 in the KD group were significantly higher and vaspin—lower in comparison to patients receiving VPA and the control group. In all examined children, serum adiponectin and omentin-1 correlated negatively with WHR and serum triglycerides, insulin, fasting glucose, and HOMA-IR. Vaspin levels correlated negatively with serum triglycerides and positively with body weight, BMI, fasting glucose, insulin, and HOMA-IR. Conclusion: One of the potential mechanisms of KD in children with drug-resistant epilepsy may be a modulation of metabolically beneficial and anti-inflammatory adipokine levels.
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Affiliation(s)
- Marcin Chyra
- Department of Paediatric Neurology, Independent Public Healthcare Centre—Municipal Hospital Complex, ul. Władysława Truchana 7, 41-500 Chorzow, Poland;
- Correspondence: ; Tel.: +48-32-349-00-85; Fax: +48-32-349-01-50
| | - Wojciech Roczniak
- Institute of Medicine, Jan Grodek State University in Sanok, ul. Mickiewicza 21, 38-500 Sanok, Poland; (W.R.); (J.O.)
| | - Elżbieta Świętochowska
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. Jordana 19, 41-808 Zabrze, Poland;
| | - Magdalena Dudzińska
- Department of Paediatric Neurology, Independent Public Healthcare Centre—Municipal Hospital Complex, ul. Władysława Truchana 7, 41-500 Chorzow, Poland;
| | - Joanna Oświęcimska
- Institute of Medicine, Jan Grodek State University in Sanok, ul. Mickiewicza 21, 38-500 Sanok, Poland; (W.R.); (J.O.)
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2
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Bosco DB, Tian DS, Wu LJ. Neuroimmune interaction in seizures and epilepsy: focusing on monocyte infiltration. FEBS J 2020; 287:4822-4837. [PMID: 32473609 DOI: 10.1111/febs.15428] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 05/06/2020] [Accepted: 05/26/2020] [Indexed: 12/30/2022]
Abstract
Epilepsy is a major neurological condition that affects millions of people globally. While a number of interventions have been developed to mitigate this condition, a significant number of patients are refractory to these treatments. Consequently, other avenues of research are needed. One such avenue is modulation of the immune system response to this condition, which has mostly focused on microglia, the resident immune cells of the central nervous system (CNS). However, other immune cells can impact neurological conditions, principally blood-borne monocytes that can infiltrate into brain parenchyma after seizures. As such, this review will first discuss how monocytes can be recruited to the CNS and how they can be distinguished from there immunological cousins, microglia. Then, we will explore what is known about the role monocytes have within seizure pathogenesis and epilepsy. Considering how little is known about monocyte function in seizure- and epilepsy-related pathologies, further studies are warranted that investigate infiltrated blood-borne monocytes as a potential therapeutic target for epilepsy treatment.
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Affiliation(s)
- Dale B Bosco
- Department of Neurology, Mayo Clinic, Rochester, MN, USA
| | - Dai-Shi Tian
- Department of Neurology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Long-Jun Wu
- Department of Neurology, Mayo Clinic, Rochester, MN, USA.,Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA.,Department of Immunology, Mayo Clinic, Rochester, MN, USA
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Kobylarek D, Iwanowski P, Lewandowska Z, Limphaibool N, Szafranek S, Labrzycka A, Kozubski W. Advances in the Potential Biomarkers of Epilepsy. Front Neurol 2019; 10:685. [PMID: 31312171 PMCID: PMC6614180 DOI: 10.3389/fneur.2019.00685] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 06/12/2019] [Indexed: 12/11/2022] Open
Abstract
Epilepsy is a group of chronic neurological disorders characterized by recurrent, spontaneous, and unpredictable seizures. It is one of the most common neurological disorders, affecting tens of millions of people worldwide. Comprehensive studies on epilepsy in recent decades have revealed the complexity of epileptogenesis, in which immunological processes, epigenetic modifications, and structural changes in neuronal tissues have been identified as playing a crucial role. This review discusses the recent advances in the biomarkers of epilepsy. We evaluate the possible molecular background underlying the clinical changes observed in recent studies, focusing on therapeutic investigations, and the evidence of their safety and efficacy in the human population. This article reviews the pathophysiology of epilepsy, including recent reports on the effects of oxidative stress and hypoxia, and focuses on specific biomarkers and their clinical implications, along with further perspectives in epilepsy research.
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Affiliation(s)
- Dominik Kobylarek
- Department of Neurology, Poznan University of Medical Sciences, Poznan, Poland
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4
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He Q, Jiang L, Man S, Wu L, Hu Y, Chen W. Curcumin Reduces Neuronal Loss and Inhibits the NLRP3 Inflammasome Activation in an Epileptic Rat Model. Curr Neurovasc Res 2019; 15:186-192. [PMID: 30062967 PMCID: PMC6327116 DOI: 10.2174/1567202615666180731100224] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 06/01/2018] [Accepted: 06/05/2018] [Indexed: 01/28/2023]
Abstract
Background: Epilepsy is a chronic neurological disorder affecting an estimated 50 mil-lion people worldwide. Emerging evidences have accumulated over the past decades supporting the role of inflammation in the pathogenesis of epilepsy. Curcumin is a nature-derived active molecule demonstrating anti-inflammation efficacy. However, its effects on epilepsy and corresponding mech-anisms remain elusive. Objective: To investigate the effects of curcumin on epilepsy and its underlying mechanism. Method: Forty Sprague Dawley rats were divided into four groups: (1) control group; (2) Kainic Acid (KA)-induced epilepsy group; (3) curcumin group; and (4) curcumin pretreatment before KA stimulation group. Morris water maze was utilized to assess the effect of curcumin on KA-induced epilepsy. The hippocampi were obtained from rats and subjected to western blot. Immunohistochem-istry was conducted to investigate the underlying mechanisms. Results: Rats received curcumin demonstrated improvement of recognition deficiency and epilepsy syndromes induced by KA. Western blot showed that KA stimulation increased the expression of IL-1β and NLRP3, which were reduced by curcumin treatment. Further investigations revealed that curcumin inhibited the activation of NLPR3/inflammasome in epilepsy and reduced neuronal loss in hippocampus. Conclusion: Curcumin inhibits KA-induced epileptic syndromes via suppression of NLRP3 in-flammasome activation; therefore, offers a potential therapy for epilepsy.
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Affiliation(s)
- Qianchao He
- First Cerebropathy Unit, First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Lingfei Jiang
- First Cerebropathy Unit, First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China.,Department of Postgraduate School, Guangxi University of Chinese Medicine, Nanning 530200, Guangxi, China
| | - Shanshan Man
- First Cerebropathy Unit, First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Lin Wu
- First Cerebropathy Unit, First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China.,Scientific Laboratorial Centre, Guangxi University of Chinese Medicine, Nanning 530200, Guangxi, China.,Key Laboratory of Guangxi Basic Chinese Medicine, Nanning 530200, Guangxi, China
| | - Yueqiang Hu
- First Cerebropathy Unit, First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China.,Key Laboratory of Guangxi Basic Chinese Medicine, Nanning 530200, Guangxi, China
| | - Wei Chen
- First Cerebropathy Unit, First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China.,Key Laboratory of Guangxi Basic Chinese Medicine, Nanning 530200, Guangxi, China
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Value of Functionalized Superparamagnetic Iron Oxide Nanoparticles in the Diagnosis and Treatment of Acute Temporal Lobe Epilepsy on MRI. Neural Plast 2016; 2016:2412958. [PMID: 26925269 PMCID: PMC4748095 DOI: 10.1155/2016/2412958] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 12/27/2015] [Accepted: 01/03/2016] [Indexed: 12/18/2022] Open
Abstract
Purpose. Although active targeting of drugs using a magnetic-targeted drug delivery system (MTDS) with superparamagnetic iron oxide nanoparticles (SPIONs) is a very effective treatment approach for tumors and other illnesses, successful results of drug-resistant temporal lobe epilepsy (TLE) are unprecedented. A hallmark in the neuropathology of TLE is brain inflammation, in particular the activation of interleukin-1β (IL-1β) induced by activated glial cells, which has been considered a new mechanistic target for treatment. The purpose of this study was to determine the feasibility of the functionalized SPIONs with anti-IL-1β monoclonal antibody (mAb) attached to render MRI diagnoses and simultaneously provide targeted therapy with the neutralization of IL-1β overexpressed in epileptogenic zone of an acute rat model of TLE. Experimental Design. The anti-IL-1β mAb-SPIONs were studied in vivo versus plain SPIONs and saline. Lithium-chloride pilocarpine-induced TLE models (n = 60) were followed by Western blot, Perl's iron staining, Nissl staining, and immunofluorescent double-label staining after MRI examination. Results. The magnetic anti-IL-1β mAb-SPION administered intravenously, which crossed the BBB and was concentrated in the astrocytes and neurons in epileptogenic tissues, rendered these tissues visible on MRI and simultaneously delivered anti-IL-1β mAb to the epileptogenic focus. Conclusions. Our study provides the first evidence that the novel approach enhanced accumulation and the therapeutic effect of anti-IL-1β mAb by MTDS using SPIONs.
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6
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Jin Y, Zhao C, Chen L, Liu X, Pan S, Ju D, Ma J, Li J, Wei B. Identification of novel gene and pathway targets for human epilepsy treatment. Biol Res 2016; 49:3. [PMID: 26742644 PMCID: PMC4705636 DOI: 10.1186/s40659-015-0060-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 12/02/2015] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The aim of this study was to explore epilepsy-related mechanism so as to figure out the possible targets for epilepsy treatment. METHODS The gene expression profile dataset GES32534 was downloaded from Gene Expression Omnibus database. We identified the differentially expressed genes (DEGs) by Affy package. Then the DEGs were used to perform gene ontology (GO) and pathway enrichment analyses. Furthermore, a protein-protein interaction (PPI) network was constructed with the DEGs followed by co-expression modules construction and analysis. RESULTS Total 420 DEGs were screened out, including 214 up-regulated and 206 down-regulated genes. Functional enrichment analysis revealed that down-regulated genes were mainly involved in the process of immunity regulation and biological repairing process while up-regulated genes were closely related to transporter activity. PPI network analysis showed the top ten genes with high degrees were all down-regulated, among which FN1 had the highest degree. The up-regulated and down-regulated DEGs in the PPI network generated two obvious sub-co-expression modules, respectively. In up-co-expression module, SCN3B (sodium channel, voltage gated, type III beta subunit) was enriched in GO:0006814 ~ sodium ion transport. In down-co-expression module, C1QB (complement C1s), C1S (complement component 1, S subcomponent) and CFI (complement factor I) were enriched in GO:0006955 ~ immune response. CONCLUSION The immune response and complement system play a major role in the pathogenesis of epilepsy. Additionally, C1QB, C1S, CFI, SCN3B and FN1 may be potential therapeutic targets for epilepsy.
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Affiliation(s)
- Ying Jin
- Department of Neurology, Jilin Oilfield General Hospital, Songyuan, 131200, China.
| | - Chunzhe Zhao
- Department of Neurology, Jilin Oilfield General Hospital, Songyuan, 131200, China.
| | - Lihui Chen
- Department of Neurology, Jilin Oilfield General Hospital, Songyuan, 131200, China.
| | - Xiangyu Liu
- Department of Neurology, Jilin Oilfield General Hospital, Songyuan, 131200, China.
| | - Shuxiao Pan
- Department of Neurology, Jilin Oilfield General Hospital, Songyuan, 131200, China.
| | - Dongsheng Ju
- Department of Neurology, Jilin Oilfield General Hospital, Songyuan, 131200, China.
| | - Jing Ma
- Department of Neurology, Jilin Oilfield General Hospital, Songyuan, 131200, China.
| | - Jinying Li
- Department of Neurology, Jilin Oilfield General Hospital, Songyuan, 131200, China.
| | - Bo Wei
- The Second Division of Neurosurgery, Departments of Neurosurgery, The China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun, 130033, Jilin Province, China.
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Choi HS, Park JH, Ahn JH, Hong S, Cho JH, Won MH, Lee CH. The anti-inflammatory activity of duloxetine, a serotonin/norepinephrine reuptake inhibitor, prevents kainic acid-induced hippocampal neuronal death in mice. J Neurol Sci 2015; 358:390-7. [PMID: 26453128 DOI: 10.1016/j.jns.2015.10.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 09/24/2015] [Accepted: 10/01/2015] [Indexed: 12/29/2022]
Abstract
Duloxetine (DXT), a potent serotonin/norepinephrine reuptake inhibitor, is widely used in the treatment of major depressive disorder. In the present study, we examined the effects of DXT treatment on seizure behavior and excitotoxic neuronal damage in the mouse hippocampal CA3 region following intraperitoneal kainic acid (KA) injection. DXT treatment showed no effect on KA-induced behavioral seizure activity. However, treatment with 10mg/kg DXT reduced KA-induced neuronal death in the hippocampal CA3 region at 72h after KA administration, and treatment with 20 and 40mg/kg DXT showed a noticeable neuroprotection in the hippocampal CA3 region after KA injection. In addition, KA-induced activations of microglia and astrocytes as well as KA-induced increases of TNF-α and IL-1β levels were also suppressed by DXT treatment. These results indicate that DXT displays the neuroprotective effect against KA-induced excitotoxic neuronal death through anti-inflammatory action.
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Affiliation(s)
- Hee-Soo Choi
- Department of Pharmacy, College of Pharmacy, Dankook University, Cheonan 330-714, South Korea
| | - Joon Ha Park
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon 200-701, South Korea
| | - Ji Hyeon Ahn
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon 200-701, South Korea
| | - Seongkweon Hong
- Department of Surgery, School of Medicine, Kangwon National University, Chuncheon 200-701, South Korea
| | - Jun Hwi Cho
- Department of Emergency Medicine and Institute of Medical Sciences, School of Medicine, Kangwon National University, Chuncheon 200-701, South Korea
| | - Moo-Ho Won
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon 200-701, South Korea.
| | - Choong-Hyun Lee
- Department of Pharmacy, College of Pharmacy, Dankook University, Cheonan 330-714, South Korea.
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8
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Wilhelm EA, Machado NC, Pedroso AB, Goldani BS, Seus N, Moura S, Savegnago L, Jacob RG, Alves D. Organocatalytic synthesis and evaluation of 7-chloroquinoline-1,2,3-triazoyl carboxamides as potential antinociceptive, anti-inflammatory and anticonvulsant agent. RSC Adv 2014. [DOI: 10.1039/c4ra07002j] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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9
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What Is the Clinical Relevance of In Vitro Epileptiform Activity? ISSUES IN CLINICAL EPILEPTOLOGY: A VIEW FROM THE BENCH 2014; 813:25-41. [DOI: 10.1007/978-94-017-8914-1_2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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10
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Neuroprotective effects of vagus nerve stimulation on hippocampal neurons in intractable epilepsy. Med Hypotheses 2013; 81:1066-8. [DOI: 10.1016/j.mehy.2013.10.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 09/28/2013] [Accepted: 10/04/2013] [Indexed: 11/18/2022]
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11
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Bielefeld P, van Vliet EA, Gorter JA, Lucassen PJ, Fitzsimons CP. Different subsets of newborn granule cells: a possible role in epileptogenesis? Eur J Neurosci 2013; 39:1-11. [DOI: 10.1111/ejn.12387] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2013] [Revised: 09/03/2013] [Accepted: 09/10/2013] [Indexed: 12/27/2022]
Affiliation(s)
- Pascal Bielefeld
- Center for Neuroscience; Swammerdam Institute for Life Sciences; University of Amsterdam; Science Park 904 1098 XH Amsterdam The Netherlands
| | - Erwin A. van Vliet
- Center for Neuroscience; Swammerdam Institute for Life Sciences; University of Amsterdam; Science Park 904 1098 XH Amsterdam The Netherlands
- Epilepsy Institute in The Netherlands Foundation (Stichting Epilepsie Instellingen Nederland SEIN); Heemstede The Netherlands
| | - Jan A. Gorter
- Center for Neuroscience; Swammerdam Institute for Life Sciences; University of Amsterdam; Science Park 904 1098 XH Amsterdam The Netherlands
| | - Paul J. Lucassen
- Center for Neuroscience; Swammerdam Institute for Life Sciences; University of Amsterdam; Science Park 904 1098 XH Amsterdam The Netherlands
| | - Carlos P. Fitzsimons
- Center for Neuroscience; Swammerdam Institute for Life Sciences; University of Amsterdam; Science Park 904 1098 XH Amsterdam The Netherlands
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12
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Proteomic analysis of the effect of acupuncture on the suppression of kainic Acid-induced neuronal destruction in mouse hippocampus. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:436315. [PMID: 23970931 PMCID: PMC3736462 DOI: 10.1155/2013/436315] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 06/07/2013] [Accepted: 06/26/2013] [Indexed: 11/17/2022]
Abstract
Kainic acid (KA) is a neurotoxin that induces epileptic seizures and excitotoxicity in the hippocampus. Acupuncture is frequently used as an alternative therapy for epilepsy, and it has been known to protect hippocampal neurons against KA toxicity. Using proteomic analysis, we investigated protein expression changes in the hippocampus following acupuncture stimulation at HT8. Eight-week-old male C57BL/6 mice (20-25 g) received acupuncture treatment at HT8 acupoint bilaterally once a day for 3 days and were then administered KA (30 mg/kg) intraperitoneally. Twenty-four hours after KA injection, neuronal survival and astrocyte activation in the hippocampus were measured, and protein expression in the hippocampus was identified by 2-dimensional electrophoresis. Acupuncture stimulation at HT8 suppressed KA-induced neuronal death and astrocyte activation in the hippocampus. We identified the changes in the expression of 11 proteins by KA or acupuncture stimulation at HT8 and found that acupuncture stimulation at HT8 normalized the expression of dihydropyrimidinase-related protein 2 and upregulated the expression of transcriptional activator protein pur-alpha, serine/threonine-protein phosphatase 5, and T-complex protein 1 subunit alpha, which are related to the survival of neurons. These results suggest that acupuncture stimulation at HT8 changes protein expression profiles in the hippocampus in favor of neuronal survival in KA-treated mice.
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13
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Yu N, Liu H, Di Q. Modulation of Immunity and the Inflammatory Response: A New Target for Treating Drug-resistant Epilepsy. Curr Neuropharmacol 2013; 11:114-27. [PMID: 23814544 PMCID: PMC3580785 DOI: 10.2174/157015913804999540] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Revised: 07/16/2012] [Accepted: 11/17/2012] [Indexed: 12/11/2022] Open
Abstract
Until recently, epilepsy medical therapy is usually limited to anti-epileptic drugs (AEDs). However, approximately 1/3 of epilepsy patients, described as drug-resistant epilepsy (DRE) patients, still suffer from continuous frequent seizures despite receiving adequate AEDs treatment of sufficient duration. More recently, with the remarkable progress of immunology, immunity and inflammation are considered to be key elements of the pathobiology of epilepsy. Activation of inflammatory processes in brain tissue has been observed in both experimental seizure animal models and epilepsy patients. Anti-inflammatory and immunotherapies also showed significant anticonvulsant properties both in clinical and in experimental settings. The above emerging evidence indicates that modulation of immunity and inflammatory processes could serve as novel specific targets to achieve potential anticonvulsant effects for the patients with epilepsy, especially DRE. Herein we review the recent evidence supporting the role of inflammation in the development and perpetuation of seizures, and also discuss the recent achievements in modulation of inflammation and immunotherapy applied to the treatment of epilepsy. Apart from medical therapy, we also discuss the influences of surgery, ketogenic diet, and electroconvulsive therapy on immunity and inflammation in DRE patients. Taken together, a promising perspective is suggested for future immunomodulatory therapies in the treatment of patients with DRE.
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Affiliation(s)
- Nian Yu
- Department of Neurology, Nanjing Brain Hospital affiliated to Nanjing Medical University, Nanjing, Jiangsu, China
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14
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Kim ST, Doo AR, Kim SN, Kim SY, Kim YY, Kim JH, Lee H, Yin CS, Park HJ. Acupuncture suppresses kainic acid-induced neuronal death and inflammatory events in mouse hippocampus. J Physiol Sci 2012; 62:377-83. [PMID: 22773088 PMCID: PMC10717998 DOI: 10.1007/s12576-012-0216-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2011] [Accepted: 05/11/2012] [Indexed: 11/24/2022]
Abstract
The administration of kainic acid (KA) causes seizures and produces neurodegeneration in hippocampal CA3 pyramidal cells. The present study investigated a possible role of acupuncture in reducing hippocampal cell death and inflammatory events, using a mouse model of kainic acid-induced epilepsy. Male C57BL/6 mice received acupuncture treatments at acupoint HT8 or in the tail area bilaterally once a day for 2 days and again immediately after an intraperitoneal injection of KA (30 mg/kg). HT8 is located on the palmar surface of the forelimbs, between the fourth and fifth metacarpal bones. Twenty-four hours after the KA injection, neuronal cell survival, the activations of microglia and astrocytes, and mRNA expression of two proinflammatory cytokines, interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α), were measured in the hippocampus. Acupuncture stimulation at HT8, but not in the tail area, significantly reduced the KA-induced seizure, neuron death, microglial and astrocyte activations, and IL-1β mRNA expression in the hippocampus. The acupuncture stimulation also decreased the mRNA expression of TNF-α, but it was not significant. These results indicate that acupuncture at HT8 can inhibit hippocampal cell death and suppress KA-induced inflammatory events, suggesting a possible role for acupuncture in the treatment of epilepsy.
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Affiliation(s)
- Seung-Tae Kim
- Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Beomeo-ri, Mulgeum-eup, Gyeongsangnam-do Yangsan-si, 626-870 Republic of Korea
| | - Ah-Reum Doo
- Department of Meridian and Acupoint, College of Korean Medicine, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701 Republic of Korea
- Acupuncture and Meridian Science Research Center, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701 Republic of Korea
| | - Seung-Nam Kim
- Department of Meridian and Acupoint, College of Korean Medicine, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701 Republic of Korea
- Acupuncture and Meridian Science Research Center, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701 Republic of Korea
| | - Song-Yi Kim
- Department of Meridian and Acupoint, College of Korean Medicine, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701 Republic of Korea
- Acupuncture and Meridian Science Research Center, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701 Republic of Korea
| | - Yoon Young Kim
- Department of Oriental Pediatrics, Graduate School of Oriental Medicine, Dongguk University, Seoul, Republic of Korea
| | - Jang-Hyun Kim
- Department of Oriental Pediatrics, Graduate School of Oriental Medicine, Dongguk University, Seoul, Republic of Korea
| | - Hyejung Lee
- Department of Meridian and Acupoint, College of Korean Medicine, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701 Republic of Korea
- Acupuncture and Meridian Science Research Center, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701 Republic of Korea
| | - Chang Shik Yin
- Acupuncture and Meridian Science Research Center, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701 Republic of Korea
| | - Hi-Joon Park
- Department of Meridian and Acupoint, College of Korean Medicine, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701 Republic of Korea
- Acupuncture and Meridian Science Research Center, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701 Republic of Korea
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15
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Tegla CA, Cudrici C, Patel S, Trippe R, Rus V, Niculescu F, Rus H. Membrane attack by complement: the assembly and biology of terminal complement complexes. Immunol Res 2012; 51:45-60. [PMID: 21850539 DOI: 10.1007/s12026-011-8239-5] [Citation(s) in RCA: 191] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Complement system activation plays an important role in both innate and acquired immunity. Activation of the complement and the subsequent formation of C5b-9 channels (the membrane attack complex) on the cell membranes lead to cell death. However, when the number of channels assembled on the surface of nucleated cells is limited, sublytic C5b-9 can induce cell cycle progression by activating signal transduction pathways and transcription factors and inhibiting apoptosis. This induction by C5b-9 is dependent upon the activation of the phosphatidylinositol 3-kinase/Akt/FOXO1 and ERK1 pathways in a Gi protein-dependent manner. C5b-9 induces sequential activation of CDK4 and CDK2, enabling the G1/S-phase transition and cellular proliferation. In addition, it induces RGC-32, a novel gene that plays a role in cell cycle activation by interacting with Akt and the cyclin B1-CDC2 complex. C5b-9 also inhibits apoptosis by inducing the phosphorylation of Bad and blocking the activation of FLIP, caspase-8, and Bid cleavage. Thus, sublytic C5b-9 plays an important role in cell activation, proliferation, and differentiation, thereby contributing to the maintenance of cell and tissue homeostasis.
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Affiliation(s)
- Cosmin A Tegla
- Department of Neurology, School of Medicine, University of Maryland, 655 W. Baltimore Street, BRB 12-033, Baltimore, MD 21201, USA
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Impact of the erythropoietin-derived peptide mimetic Epotris on the histopathological consequences of status epilepticus. Epilepsy Res 2011; 96:241-9. [DOI: 10.1016/j.eplepsyres.2011.06.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2011] [Revised: 06/09/2011] [Accepted: 06/11/2011] [Indexed: 11/18/2022]
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Raffo E, Coppola A, Ono T, Briggs SW, Galanopoulou AS. A pulse rapamycin therapy for infantile spasms and associated cognitive decline. Neurobiol Dis 2011; 43:322-9. [PMID: 21504792 DOI: 10.1016/j.nbd.2011.03.021] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2010] [Revised: 03/02/2011] [Accepted: 03/30/2011] [Indexed: 10/18/2022] Open
Abstract
Infantile spasms are seizures manifesting within a spectrum of epileptic encephalopathies of infancy that often lead to cognitive impairment. Their current therapies, including adrenocorticotropic hormone (ACTH), high dose steroids, or vigabatrin, are not always effective and may be associated with serious side effects. Overactivation of the TORC1 complex of the mTOR pathway is implicated in the pathogenesis of certain genetic and acquired disorders that are linked with infantile spasms, like tuberous sclerosis. Here, we tested the therapeutic potential of rapamycin, a TORC1 inhibitor, as a potential treatment for infantile spasms in the multiple-hit rat model of ACTH-refractory symptomatic infantile spasms, which is not linked to tuberous sclerosis. Rapamycin or vehicle was given after spasms appeared. Their effects on spasms, other seizures, performance in Barnes maze, and expression of the phosphorylated S6 ribosomal protein (pS6: a TORC1 target) in the cortex, using immunofluorescence, were compared. Rapamycin suppressed spasms dose-dependently and improved visuospatial learning, although it did not reduce the frequency of other emerging seizures. High-dose pulse rapamycin effected acute and sustained suppression of spasms and improved cognitive outcome, without significant side effects. Therapeutically effective rapamycin doses normalized the pS6 expression, which was increased in perilesional cortical regions of pups with spasms. These findings support that pathological overactivation of TORC1 may be implicated in the pathogenesis of infantile spasms, including those that are not linked to tuberous sclerosis. Furthermore, a high-dose, pulse rapamycin treatment is a promising, well tolerated and disease-modifying new therapy for infantile spasms, including those refractory to ACTH.
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Affiliation(s)
- Emmanuel Raffo
- Saul R. Korey Department of Neurology, Albert Einstein College of Medicine, Bronx NY 10461, USA
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Takács E, Nyilas R, Szepesi Z, Baracskay P, Karlsen B, Røsvold T, Bjørkum AA, Czurkó A, Kovács Z, Kékesi AK, Juhász G. Matrix metalloproteinase-9 activity increased by two different types of epileptic seizures that do not induce neuronal death: a possible role in homeostatic synaptic plasticity. Neurochem Int 2010; 56:799-809. [PMID: 20303372 DOI: 10.1016/j.neuint.2010.03.003] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2009] [Revised: 03/08/2010] [Accepted: 03/10/2010] [Indexed: 01/26/2023]
Abstract
Matrix metalloproteases (MMPs) degrade or modify extracellular matrix or membrane-bound proteins in the brain. MMP-2 and MMP-9 are activated by treatments that result in a sustained neuronal depolarization and are thought to contribute to neuronal death and structural remodeling. At the synapse, MMP actions on extracellular proteins contribute to changes in synaptic efficacy during learning paradigms. They are also activated during epileptic seizures, and MMP-9 has been associated with the establishment of aberrant synaptic connections after neuronal death induced by kainate treatment. It remains unclear whether MMPs are activated by epileptic activities that do not induce cell death. Here we examine this point in two animal models of epilepsy that do not involve extensive cell damage. We detected an elevation of MMP-9 enzymatic activity in cortical regions of secondary generalization after focal seizures induced by 4-aminopyridine (4-AP) application in rats. Pro-MMP-9 levels were also higher in Wistar Glaxo Rijswijk (WAG/Rij) rats, a genetic model of generalized absence epilepsy, than they were in Sprague-Dawley rats, and this elevation was correlated with diurnally occurring spike-wave-discharges in WAG/Rij rats. The increased enzymatic activity of MMP-9 in these two different epilepsy models is associated with synchronized neuronal activity that does not induce widespread cell death. In these epilepsy models MMP-9 induction may therefore be associated with functions such as homeostatic synaptic plasticity rather than neuronal death.
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Affiliation(s)
- Eszter Takács
- Laboratory of Proteomics, Institute of Biology, Eötvös Loránd University, Budapest, Hungary.
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