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Nieoczym D, Banono NS, Stępnik K, Kaczor AA, Szybkowski P, Esguerra CV, Kukula-Koch W, Gawel K. In Silico Analysis, Anticonvulsant Activity, and Toxicity Evaluation of Schisandrin B in Zebrafish Larvae and Mice. Int J Mol Sci 2023; 24:12949. [PMID: 37629132 PMCID: PMC10455331 DOI: 10.3390/ijms241612949] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 08/16/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
The aim of this study is to evaluate the anticonvulsant potential of schisandrin B, a main ingredient of Schisandra chinensis extracts. Schisandrin B showed anticonvulsant activity in the zebrafish larva pentylenetetrazole acute seizure assay but did not alter seizure thresholds in the intravenous pentylenetetrazole test in mice. Schisandrin B crosses the blood-brain barrier, which we confirmed in our in silico and in vivo analyses; however, the low level of its unbound fraction in the mouse brain tissue may explain the observed lack of anticonvulsant activity. Molecular docking revealed that the anticonvulsant activity of the compound in larval zebrafish might have been due to its binding to a benzodiazepine site within the GABAA receptor and/or the inhibition of the glutamate NMDA receptor. Although schisandrin B showed a beneficial anticonvulsant effect, toxicological studies revealed that it caused serious developmental impairment in zebrafish larvae, underscoring its teratogenic properties. Further detailed studies are needed to precisely identify the properties, pharmacological effects, and safety of schisandrin B.
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Affiliation(s)
- Dorota Nieoczym
- Department of Animal Physiology and Pharmacology, Institute of Biological Sciences, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland
| | - Nancy Saana Banono
- Chemical Neuroscience Group, Centre for Molecular Medicine Norway, University of Oslo, Gaustadalleen 21, Forskningsparken, 0349 Oslo, Norway; (N.S.B.); (C.V.E.)
| | - Katarzyna Stępnik
- Department of Physical Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University, Pl. M. Curie-Skłodowskiej 3/243, 20-031 Lublin, Poland;
| | - Agnieszka A. Kaczor
- Department of Synthesis and Chemical Technology of Pharmaceutical Substances with Computer Modeling Laboratory, Faculty of Pharmacy, Medical University of Lublin, 4A Chodzki St., 20-093 Lublin, Poland;
| | - Przemysław Szybkowski
- Department of Experimental and Clinical Pharmacology, Medical University of Lublin, Jaczewskiego St. 8b, 20-090 Lublin, Poland;
- Clinical Provincial Hospital No. 2 St. Jadwiga Krolowej in Rzeszow, Lwowska St. 60, 35-301 Rzeszow, Poland
| | - Camila Vicencio Esguerra
- Chemical Neuroscience Group, Centre for Molecular Medicine Norway, University of Oslo, Gaustadalleen 21, Forskningsparken, 0349 Oslo, Norway; (N.S.B.); (C.V.E.)
| | - Wirginia Kukula-Koch
- Department of Pharmacognosy with Medicinal Plants Garden, Medical University of Lublin, Chodźki St. 1, 20-093 Lublin, Poland;
| | - Kinga Gawel
- Department of Experimental and Clinical Pharmacology, Medical University of Lublin, Jaczewskiego St. 8b, 20-090 Lublin, Poland;
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Godoy LD, Prizon T, Rossignoli MT, Leite JP, Liberato JL. Parvalbumin Role in Epilepsy and Psychiatric Comorbidities: From Mechanism to Intervention. Front Integr Neurosci 2022; 16:765324. [PMID: 35250498 PMCID: PMC8891758 DOI: 10.3389/fnint.2022.765324] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 01/24/2022] [Indexed: 12/22/2022] Open
Abstract
Parvalbumin is a calcium-binding protein present in inhibitory interneurons that play an essential role in regulating many physiological processes, such as intracellular signaling and synaptic transmission. Changes in parvalbumin expression are deeply related to epilepsy, which is considered one of the most disabling neuropathologies. Epilepsy is a complex multi-factor group of disorders characterized by periods of hypersynchronous activity and hyperexcitability within brain networks. In this scenario, inhibitory neurotransmission dysfunction in modulating excitatory transmission related to the loss of subsets of parvalbumin-expressing inhibitory interneuron may have a prominent role in disrupted excitability. Some studies also reported that parvalbumin-positive interneurons altered function might contribute to psychiatric comorbidities associated with epilepsy, such as depression, anxiety, and psychosis. Understanding the epileptogenic process and comorbidities associated with epilepsy have significantly advanced through preclinical and clinical investigation. In this review, evidence from parvalbumin altered function in epilepsy and associated psychiatric comorbidities were explored with a translational perspective. Some advances in potential therapeutic interventions are highlighted, from current antiepileptic and neuroprotective drugs to cutting edge modulation of parvalbumin subpopulations using optogenetics, designer receptors exclusively activated by designer drugs (DREADD) techniques, transcranial magnetic stimulation, genome engineering, and cell grafting. Creating new perspectives on mechanisms and therapeutic strategies is valuable for understanding the pathophysiology of epilepsy and its psychiatric comorbidities and improving efficiency in clinical intervention.
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Affiliation(s)
- Lívea Dornela Godoy
- Department of Psychology, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Tamiris Prizon
- Department of Neuroscience and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Matheus Teixeira Rossignoli
- Department of Neuroscience and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - João Pereira Leite
- Department of Neuroscience and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- João Pereira Leite,
| | - José Luiz Liberato
- Department of Neuroscience and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- *Correspondence: José Luiz Liberato,
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The Endocannabinoid System in Glial Cells and Their Profitable Interactions to Treat Epilepsy: Evidence from Animal Models. Int J Mol Sci 2021; 22:ijms222413231. [PMID: 34948035 PMCID: PMC8709154 DOI: 10.3390/ijms222413231] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/03/2021] [Accepted: 12/06/2021] [Indexed: 12/11/2022] Open
Abstract
Epilepsy is one of the most common neurological conditions. Yearly, five million people are diagnosed with epileptic-related disorders. The neuroprotective and therapeutic effect of (endo)cannabinoid compounds has been extensively investigated in several models of epilepsy. Therefore, the study of specific cell-type-dependent mechanisms underlying cannabinoid effects is crucial to understanding epileptic disorders. It is estimated that about 100 billion neurons and a roughly equal number of glial cells co-exist in the human brain. The glial population is in charge of neuronal viability, and therefore, their participation in brain pathophysiology is crucial. Furthermore, glial malfunctioning occurs in a wide range of neurological disorders. However, little is known about the impact of the endocannabinoid system (ECS) regulation over glial cells, even less in pathological conditions such as epilepsy. In this review, we aim to compile the existing knowledge on the role of the ECS in different cell types, with a particular emphasis on glial cells and their impact on epilepsy. Thus, we propose that glial cells could be a novel target for cannabinoid agents for treating the etiology of epilepsy and managing seizure-like disorders.
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Hlebokazov F, Dakukina T, Potapnev M, Kosmacheva S, Moroz L, Misiuk N, Golubeva T, Slobina E, Krasko O, Shakhbazau A, Hlavinski I, Goncharova N. Clinical benefits of single vs repeated courses of mesenchymal stem cell therapy in epilepsy patients. Clin Neurol Neurosurg 2021; 207:106736. [PMID: 34119901 DOI: 10.1016/j.clineuro.2021.106736] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 06/03/2021] [Accepted: 06/04/2021] [Indexed: 01/01/2023]
Abstract
PURPOSE Epilepsy is defined as "drug-resistant" when existing anti-epileptic drugs (AED) are found to have minimal to no effect on patient's condition. Therefore the search and testing of new treatment strategies is warranted. This study focuses on the effects of autologous mesenchymal stem cells (MSC) in drug-resistant epilepsy patients within a Phase I/II open-label registered clinical trial NCT02497443. MATERIALS/METHODS A total of 67 patients was included (29 males, 38 females, mean age 33 ± 1.3 yo). The patients received either standard treatment with AEDs, or AEDs supplemented with one or two courses of therapy with autologous bone marrow-derived MSCs expanded in vitro. MSC therapy courses were 6 months apart, and each course consisted of two cell injections: an intravenous infusion of MSCs, followed within 1 week by an intrathecal injection. Primary outcome of the study was safety, secondary outcome was efficacy in terms of seizure frequency reduction and response to treatment. RESULTS MSC injections proved safe and did not cause any severe side effects. In MSC group (n = 34), 61.7% patients responded to therapy at 6 months timepoint (p < 0.01 vs control, n = 33), and the number rose to 76.5% by 12 months timepoint. Decrease in anxiety and depression scores and paroxysmal epileptiform activity was observed in MSC group based on HADS and EEG, respectively, and MMSE score has also improved. Another observation was that concomitant administration of levetiracetam, but not other AEDs, correlated significantly with the success of MSC therapy. Second course of MSC therapy facilitated further reduction in seizure count and epileptiform EEG activity (p < 0.05 vs single course). CONCLUSIONS Application of autologous mesenchymal stem cell-based therapy in patients with pharmacoresistant epilepsy demonstrated significant anticonvulsant potential. This effect lasted for at least 1 year, with repeated administration of MSCs conveying additional clinical benefit.
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Affiliation(s)
- Fedor Hlebokazov
- Republican Scientific and Practical Center of Mental Health, Minsk, Belarus
| | - Tatiana Dakukina
- Republican Scientific and Practical Center of Mental Health, Minsk, Belarus
| | - Michael Potapnev
- Republican Scientific and Practical Center of Transfusion and Medical Biotechnology, Minsk, Belarus.
| | - Svetlana Kosmacheva
- Republican Scientific and Practical Center of Transfusion and Medical Biotechnology, Minsk, Belarus
| | - Lubov Moroz
- Republican Scientific and Practical Center of Transfusion and Medical Biotechnology, Minsk, Belarus
| | - Nikolai Misiuk
- Republican Scientific and Practical Center of Mental Health, Minsk, Belarus
| | - Tatiana Golubeva
- Republican Scientific and Practical Center of Mental Health, Minsk, Belarus
| | - Elena Slobina
- Republican Scientific and Practical Center of Mental Health, Minsk, Belarus
| | - Olga Krasko
- United Institute of Informatics Problems of the National Academy of Sciences of Belarus, Minsk, Belarus
| | | | - Ivan Hlavinski
- Republican Scientific and Practical Center of Mental Health, Minsk, Belarus
| | - Natalia Goncharova
- Republican Scientific and Practical Center of Transfusion and Medical Biotechnology, Minsk, Belarus
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Ebrahimi T, Abasi M, Seifar F, Eyvazi S, Hejazi MS, Tarhriz V, Montazersaheb S. Transplantation of Stem Cells as a Potential Therapeutic Strategy in Neurodegenerative Disorders. Curr Stem Cell Res Ther 2021; 16:133-144. [PMID: 32598273 DOI: 10.2174/1574888x15666200628141314] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 03/26/2020] [Accepted: 03/26/2020] [Indexed: 11/22/2022]
Abstract
Stem cells are considered to have significant capacity to differentiate into various cell types in humans and animals. Unlike specialized cells, these cells can proliferate several times to produce millions of cells. Nowadays, pluripotent stem cells are important candidates to provide a renewable source for the replacement of cells in tissues of interest. The damage to neurons and glial cells in the brain or spinal cord is present in neurological disorders such as Amyotrophic lateral sclerosis, stroke, Parkinson's disease, multiple sclerosis, Alzheimer's disease, Huntington's disease, spinal cord injury, lysosomal storage disorder, epilepsy, and glioblastoma. Therefore, stem cell transplantation can be used as a novel therapeutic approach in cases of brain and spinal cord damage. Recently, researchers have generated neuron-like cells and glial-like cells from embryonic stem cells, mesenchymal stem cells, and neural stem cells. In addition, several experimental studies have been performed for developing stem cell transplantation in brain tissue. Herein, we focus on stem cell therapy to regenerate injured tissue resulting from neurological diseases and then discuss possible differentiation pathways of stem cells to the renewal of neurons.
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Affiliation(s)
- Tahereh Ebrahimi
- Department of Biotechnology research center, Pasteur institute of Iran, Tehran, Iran
| | - Mozhgan Abasi
- Immunogenetics Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Fatemeh Seifar
- Stem Cell Research Center, Aging Research institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shirin Eyvazi
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammas Saeid Hejazi
- Molecular Medicine Research Center, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vahideh Tarhriz
- Molecular Medicine Research Center, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Soheila Montazersaheb
- Molecular Medicine Research Center, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
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Yadav A, Seth B, Chaturvedi RK. Brain Organoids: Tiny Mirrors of Human Neurodevelopment and Neurological Disorders. Neuroscientist 2020; 27:388-426. [PMID: 32723210 DOI: 10.1177/1073858420943192] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Unravelling the complexity of the human brain is a challenging task. Nowadays, modern neurobiologists have developed 3D model systems called "brain organoids" to overcome the technical challenges in understanding human brain development and the limitations of animal models to study neurological diseases. Certainly like most model systems in neuroscience, brain organoids too have limitations, as these minuscule brains lack the complex neuronal circuitry required to begin the operational tasks of human brain. However, researchers are hopeful that future endeavors with these 3D brain tissues could provide mechanistic insights into the generation of circuit complexity as well as reproducible creation of different regions of the human brain. Herein, we have presented the contemporary state of brain organoids with special emphasis on their mode of generation and their utility in modelling neurological disorders, drug discovery, and clinical trials.
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Affiliation(s)
- Anuradha Yadav
- Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research, Lucknow, Uttar Pradesh, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Brashket Seth
- Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research, Lucknow, Uttar Pradesh, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Rajnish Kumar Chaturvedi
- Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research, Lucknow, Uttar Pradesh, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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7
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Soares JI, Da Costa C, Ferreira MH, Andrade PA, Maia GH, Lukoyanov NV. Partial depletion of septohippocampal cholinergic cells reduces seizure susceptibility, but does not mitigate hippocampal neurodegeneration in the kainate model of epilepsy. Brain Res 2019; 1717:235-246. [DOI: 10.1016/j.brainres.2019.04.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 04/22/2019] [Accepted: 04/23/2019] [Indexed: 02/06/2023]
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8
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Mehdizadeh A, Barzegar M, Negargar S, Yahyavi A, Raeisi S. The current and emerging therapeutic approaches in drug-resistant epilepsy management. Acta Neurol Belg 2019; 119:155-162. [PMID: 30868468 DOI: 10.1007/s13760-019-01120-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 03/06/2019] [Indexed: 01/08/2023]
Abstract
Epilepsy is a neurologic disorder consisting of recurrent spontaneous seizures. Antiepileptic drugs administration is the most commonly used therapeutic strategy in the management of epilepsy. However, 20-30% of epilepsy patients have seizure episodes that are not controlled by these medicines (drug-resistant epilepsy). The management of drug-resistant epilepsy, especially in the children, is challenging and can cause economic and social problems, and lower the patients' quality of life, cognition, and mood. Several therapeutic approaches for drug-resistant epilepsy are available including surgical methods, neurostimulation treatments, and diet therapies which lead to diminishing the epileptic seizures. An increasing number of novel and potential therapeutic approaches such as gene therapy, gene editing, cell therapy, exosome therapy, and molecular network targeting have also been explored. The present study is aimed to review these current and emerging therapeutic approaches for drug-resistant epilepsy.
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Affiliation(s)
- Amir Mehdizadeh
- Endocrine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Barzegar
- Pediatric Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sohrab Negargar
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Azita Yahyavi
- Department of Anesthesia, Shohada Hospital, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sina Raeisi
- Pediatric Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Zarriello S, Tuazon JP, Corey S, Schimmel S, Rajani M, Gorsky A, Incontri D, Hammock BD, Borlongan CV. Humble beginnings with big goals: Small molecule soluble epoxide hydrolase inhibitors for treating CNS disorders. Prog Neurobiol 2018; 172:23-39. [PMID: 30447256 DOI: 10.1016/j.pneurobio.2018.11.001] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 10/06/2018] [Accepted: 11/09/2018] [Indexed: 12/17/2022]
Abstract
Soluble epoxide hydrolase (sEH) degrades epoxides of fatty acids including epoxyeicosatrienoic acid isomers (EETs), which are produced as metabolites of the cytochrome P450 branch of the arachidonic acid pathway. EETs exert a variety of largely beneficial effects in the context of inflammation and vascular regulation. sEH inhibition is shown to be therapeutic in several cardiovascular and renal disorders, as well as in peripheral analgesia, via the increased availability of anti-inflammatory EETs. The success of sEH inhibitors in peripheral systems suggests their potential in targeting inflammation in the central nervous system (CNS) disorders. Here, we describe the current roles of sEH in the pathology and treatment of CNS disorders such as stroke, traumatic brain injury, Parkinson's disease, epilepsy, cognitive impairment, dementia and depression. In view of the robust anti-inflammatory effects of stem cells, we also outlined the potency of stem cell treatment and sEH inhibitors as a combination therapy for these CNS disorders. This review highlights the gaps in current knowledge about the pathologic and therapeutic roles of sEH in CNS disorders, which should guide future basic science research towards translational and clinical applications of sEH inhibitors for treatment of neurological diseases.
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Affiliation(s)
- Sydney Zarriello
- Center of Excellence for Aging and Brain Repair, University of South Florida College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL, 33612, United States
| | - Julian P Tuazon
- Center of Excellence for Aging and Brain Repair, University of South Florida College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL, 33612, United States
| | - Sydney Corey
- Center of Excellence for Aging and Brain Repair, University of South Florida College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL, 33612, United States
| | - Samantha Schimmel
- Center of Excellence for Aging and Brain Repair, University of South Florida College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL, 33612, United States
| | - Mira Rajani
- Center of Excellence for Aging and Brain Repair, University of South Florida College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL, 33612, United States
| | - Anna Gorsky
- Center of Excellence for Aging and Brain Repair, University of South Florida College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL, 33612, United States
| | - Diego Incontri
- Center of Excellence for Aging and Brain Repair, University of South Florida College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL, 33612, United States
| | - Bruce D Hammock
- Department of Entomology & UCD Comprehensive Cancer Center, NIEHS-UCD Superfund Research Program, University of California - Davis, United States.
| | - Cesar V Borlongan
- Center of Excellence for Aging and Brain Repair, University of South Florida College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL, 33612, United States.
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Prospects of Cannabidiol for Easing Status Epilepticus-Induced Epileptogenesis and Related Comorbidities. Mol Neurobiol 2018; 55:6956-6964. [PMID: 29372545 DOI: 10.1007/s12035-018-0898-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 01/09/2018] [Indexed: 12/21/2022]
Abstract
The hippocampus is one of the most susceptible regions in the brain to be distraught with status epilepticus (SE) induced injury. SE can occur from numerous causes and is more frequent in children and the elderly population. Administration of a combination of antiepileptic drugs can abolish acute seizures in most instances of SE but cannot prevent the morbidity typically seen in survivors of SE such as cognitive and mood impairments and spontaneous recurrent seizures. This is primarily due to the inefficiency of antiepileptic drugs to modify the evolution of SE-induced initial precipitating injury into a series of epileptogenic changes followed by a state of chronic epilepsy. Chronic epilepsy is typified by spontaneous recurrent seizures, cognitive dysfunction, and depression, which are associated with persistent inflammation, significantly waned neurogenesis, and abnormal synaptic reorganization. Thus, alternative approaches that are efficient not only for curtailing SE-induced initial brain injury, neuroinflammation, aberrant neurogenesis, and abnormal synaptic reorganization but also for thwarting or restraining the progression of SE into a chronic epileptic state are needed. In this review, we confer the promise of cannabidiol, an active ingredient of Cannabis sativa, for preventing or easing SE-induced neurodegeneration, neuroinflammation, cognitive and mood impairments, and the spontaneous recurrent seizures.
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11
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Yu A, Lv J, Yuan F, Xia Z, Fan K, Chen G, Ren J, Lin C, Wei S, Yang F. mPEG-PLA/TPGS mixed micelles via intranasal administration improved the bioavailability of lamotrigine in the hippocampus. Int J Nanomedicine 2017; 12:8353-8362. [PMID: 29200847 PMCID: PMC5701607 DOI: 10.2147/ijn.s145488] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Purpose This study aimed to develop a novel methoxy poly(ethylene glycol)-poly(lactide) (mPEG-PLA)/D-α-tocopherol polyethylene glycol 1000 succinate (TPGS) mixed micelle drug delivery system to improve lamotrigine (LTG) distribution in the hippocampus. Methods LTG-loaded mPEG-PLA/TPGS mixed micelles and LTG-loaded mPEG-PLA micelles were formulated, and their characteristics, particle size, surface morphology, and release behavior in vitro were researched. Then, a microdialysis sampling technique coupled with two validated chromatographic systems was developed for the continuous measurement of the protein-unbound form of LTG in the rat plasma and hippocampus after administering two kinds of micelles and LTG solution intranasally. Results The drug loading and mean size of LTG-loaded micelles and LTG-loaded mixed micelles prepared with optimal formulation were 36.44%±0.14%, 39.28%±0.26%, 122.9, and 183.5 nm, respectively, with a core–shell structure. The cumulative release rate in vivo of LTG-loaded mixed micelles was 84.21% at 24 hours and showed more sustained release while that of LTG-loaded micelles was 80.61% at 6 hours. The Tmax and area under concentration-time curve from zero to time of last quantifiable concentration of LTG solution, LTG-loaded micelles, and LTG-loaded mixed micelles were 55, 35, and 15 minutes and about 5,384, 16,500, and 25,245 (min⋅μg)/L in the hippocampus, respectively. Conclusion The results revealed that LTG-loaded mPEG-PLA/TPGS mixed micelles enhanced the absorption of LTG at the nasal cavity and reduced the efflux of LTG in the brain, suggesting that the function of TPGS inhibited P-glycoprotein and LTG-loaded mPEG-PLA/TPGS mixed micelles had the potential to overcome refractory epilepsy.
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Affiliation(s)
| | | | | | | | | | - Gang Chen
- Department of Pharmaceutics.,Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | | | | | - Shijie Wei
- Department of Pharmaceutics.,Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Fan Yang
- Department of Pharmaceutics.,Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
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Bhugra D, Tasman A, Pathare S, Priebe S, Smith S, Torous J, Arbuckle MR, Langford A, Alarcón RD, Chiu HFK, First MB, Kay J, Sunkel C, Thapar A, Udomratn P, Baingana FK, Kestel D, Ng RMK, Patel A, Picker LD, McKenzie KJ, Moussaoui D, Muijen M, Bartlett P, Davison S, Exworthy T, Loza N, Rose D, Torales J, Brown M, Christensen H, Firth J, Keshavan M, Li A, Onnela JP, Wykes T, Elkholy H, Kalra G, Lovett KF, Travis MJ, Ventriglio A. The WPA-Lancet Psychiatry Commission on the Future of Psychiatry. Lancet Psychiatry 2017; 4:775-818. [PMID: 28946952 DOI: 10.1016/s2215-0366(17)30333-4] [Citation(s) in RCA: 192] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 07/28/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Dinesh Bhugra
- Department of Health Services and Population Research, King's College London and South London and Maudsley NHS Foundation Trust, London, UK; World Psychiatric Association, Geneva, Switzerland.
| | - Allan Tasman
- Department of Psychiatry and Behavioral Sciences, University of Louisville School of Medicine, Louisville, KY, USA
| | - Soumitra Pathare
- Centre for Mental Health Law and Policy, Indian Law Society, Pune, India
| | - Stefan Priebe
- Unit for Social and Community Psychiatry, WHO Collaborating Centre for Mental Health Services Development, Queen Mary University of London, London, UK
| | - Shubulade Smith
- Department of Forensic and Neurodevelopmental Science, King's College London and South London and Maudsley NHS Foundation Trust, London, UK
| | - John Torous
- Department of Psychiatry and Division of Clinical Informatics, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Melissa R Arbuckle
- Department of Psychiatry, Columbia University Medical Center, New York, NY, USA; New York State Psychiatric Institute, New York, NY, USA
| | - Alex Langford
- Psychological Medicine Service, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Renato D Alarcón
- Department of Psychiatry and Psychology, Mayo Clinic College of Medicine, Rochester, MN, USA; Department of Psychiatry, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Helen Fung Kum Chiu
- Department of Psychiatry, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Michael B First
- Department of Psychiatry, Columbia University Medical Center, New York, NY, USA; New York State Psychiatric Institute, New York, NY, USA
| | - Jerald Kay
- Department of Psychiatry, Boonshoft School of Medicine, Wright State University, Dayton, OH, USA
| | - Charlene Sunkel
- SA Federation for Mental Health, Johannesburg, South Africa; Movement for Global Mental Health, Johannesburg, South Africa
| | - Anita Thapar
- Child & Adolescent Psychiatry Section, Division of Psychological Medicine and Clinical Neuroscience, MRC Centre for Neuropsychiatric Genetics & Genomics, School of Medicine, Cardiff University, Cardiff, UK
| | - Pichet Udomratn
- Department of Psychiatry, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Florence K Baingana
- Mental Health Lead Basic Package of Essential Health Services Cluster, WHO Sierra Leone Country Office, Freetown, Sierra Leone
| | - Dévora Kestel
- Mental Health and Substance Use Unit, Pan American Health Organization/World Health Organization, Washington DC, USA
| | | | - Anita Patel
- Centre for Primary Care & Public Health, Blizard Institute, Queen Mary University of London, London, UK
| | - Livia De Picker
- Collaborative Antwerp Psychiatric Research Institute, University of Antwerp, Antwerp, Belgium
| | - Kwame Julius McKenzie
- Wellesley Institute, Toronto, Ontario, Canada; General Psychiatry and Health Systems, Centre for Addictions and Mental Health, Toronto, Ontario, Canada; Department of Psychiatry, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Driss Moussaoui
- Ibn Rushd University Psychiatric Center, Casablanca, Morocco
| | - Matt Muijen
- Danish Mental Health Association, Copenhagen, Denmark
| | - Peter Bartlett
- School of Law and Institute of Mental Health, University of Nottingham, Nottingham, UK
| | - Sophie Davison
- State Forensic Mental Health Service, Department of Health, Clinical Research Centre, Mount Claremont, WA, Australia; School of Psychiatry and Clinical Neurosciences, University of Western Australia, Perth, WA, Australia
| | - Tim Exworthy
- Department of Forensic and Neurodevelopmental Science, King's College London and South London and Maudsley NHS Foundation Trust, London, UK; Cygnet Healthcare, Stevenage, UK
| | | | - Diana Rose
- Service User Research Enterprise, King's College London and South London and Maudsley NHS Foundation Trust, London, UK
| | - Julio Torales
- Department of Psychiatry, National University of Asunción, San Lorenzo, Paraguay
| | | | - Helen Christensen
- Black Dog Institute, University of New South Wales, Sydney, NSW, Australia
| | - Joseph Firth
- NICM, School of Science and Health, University of Western Sydney, Sydney, NSW, Australia
| | - Matcheri Keshavan
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Ang Li
- Department of Psychology, Beijing Forestry University, Beijing, China
| | - Jukka-Pekka Onnela
- Department of Biostatistics, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Til Wykes
- Institute of Psychiatry, Psychology & Neuroscience, King's College London and South London and Maudsley NHS Foundation Trust, London, UK
| | - Hussien Elkholy
- World Psychiatric Association, Geneva, Switzerland; Institute of Psychiatry, Neurology and Psychiatry Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Gurvinder Kalra
- Flynn Adult Inpatient Psychiatric Unit, Latrobe Regional Hospital Mental Health Services (LRH-MHS), Traralgon, VIC, Australia; School of Rural Health (La Trobe Valley & West Gippsland), Monash University, VIC, Australia
| | | | - Michael J Travis
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Antonio Ventriglio
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
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13
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Maljevic S, Reid CA, Petrou S. Models for discovery of targeted therapy in genetic epileptic encephalopathies. J Neurochem 2017; 143:30-48. [PMID: 28742937 DOI: 10.1111/jnc.14134] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 07/14/2017] [Accepted: 07/19/2017] [Indexed: 12/20/2022]
Abstract
Epileptic encephalopathies are severe disorders emerging in the first days to years of life that commonly include refractory seizures, various types of movement disorders, and different levels of developmental delay. In recent years, many de novo occurring variants have been identified in individuals with these devastating disorders. To unravel disease mechanisms, the functional impact of detected variants associated with epileptic encephalopathies is investigated in a range of cellular and animal models. This review addresses efforts to advance and use such models to identify specific molecular and cellular targets for the development of novel therapies. We focus on ion channels as the best-studied group of epilepsy genes. Given the clinical and genetic heterogeneity of epileptic encephalopathy disorders, experimental models that can reflect this complexity are critical for the development of disease mechanisms-based targeted therapy. The convergence of technological advances in gene sequencing, stem cell biology, genome editing, and high throughput functional screening together with massive unmet clinical needs provides unprecedented opportunities and imperatives for precision medicine in epileptic encephalopathies.
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Affiliation(s)
- Snezana Maljevic
- The Florey Institute of Neuroscience and Mental Health, Melbourne, Australia
| | - Christopher A Reid
- The Florey Institute of Neuroscience and Mental Health, Melbourne, Australia
| | - Steven Petrou
- The Florey Institute of Neuroscience and Mental Health, Melbourne, Australia.,University of Melbourne, Melbourne, Australia
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