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Paudel YN, Shaikh MF, Shah S, Kumari Y, Othman I. Role of inflammation in epilepsy and neurobehavioral comorbidities: Implication for therapy. Eur J Pharmacol 2018; 837:145-155. [PMID: 30125565 DOI: 10.1016/j.ejphar.2018.08.020] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 08/15/2018] [Accepted: 08/16/2018] [Indexed: 02/07/2023]
Abstract
Epilepsy is a devastating condition affecting around 70 million people worldwide. Moreover, the quality of life of people with epilepsy (PWE) is worsened by a series of comorbidities. The neurobehavioral comorbidities discussed herein share a reciprocal and complex relationship with epilepsy, which ultimately complicates the treatment process in PWE. Understanding the mechanistic pathway by which these comorbidities are associated with epilepsy might be instrumental in developing therapeutic interventions. Inflammatory cytokine signaling in the brain regulates important brain functions including neurotransmitter metabolism, neuroendocrine function, synaptic plasticity, dopaminergic transmission, the kynurenine pathway, and affects neurogenesis as well as the neural circuitry of moods. In this review, we hypothesize that the complex relationship between epilepsy and its related comorbidities (cognitive impairment, depression, anxiety, autism, and schizophrenia) can be unraveled through the inflammatory mechanism that plays a prominent role in all these individual conditions. An ample amount of evidence is available reporting the role of inflammation in epilepsy and all individual comorbid condition but their complex relationship with epilepsy has not yet been explored through the prospective of inflammatory pathway. Our review suggests that epilepsy and its neurobehavioral comorbidities are associated with elevated levels of several key inflammatory markers. This review also sheds light on the mechanistic association between epilepsy and its neurobehavioral comorbidities. Moreover, we analyzed several anti-inflammatory therapies available for epilepsy and its neurobehavioral comorbidities. We suggest, these anti-inflammatory therapies might be a possible intervention and could be a promising strategy for preventing epileptogenesis and its related neurobehavioral comorbidities.
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Affiliation(s)
- Yam Nath Paudel
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor, Malaysia
| | - Mohd Farooq Shaikh
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor, Malaysia.
| | - Sadia Shah
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India
| | - Yatinesh Kumari
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor, Malaysia
| | - Iekhsan Othman
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor, Malaysia
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202
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Górska N, Słupski J, Cubała WJ, Wiglusz MS, Gałuszko-Węgielnik M. Antidepressants in epilepsy. Neurol Neurochir Pol 2018; 52:657-661. [PMID: 30131174 DOI: 10.1016/j.pjnns.2018.07.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 07/26/2018] [Accepted: 07/27/2018] [Indexed: 11/19/2022]
Abstract
People with epilepsy (PWE) frequently suffer from comorbid mood and anxiety disorders. Depression is one of the major psychiatric comorbidities having a negative impact on the quality of life in people with epilepsy. A review of the literature indicates that the majority of antidepressant-related seizures have been associated with either ultra-high doses or overdosing and, generally, the risk of antidepressant-associated seizures is low. Correspondingly, there is some evidence indicating that antidepressants of most widely used groups may additionally lower the risk of triggering seizures. Four antidepressants are not recommended for patients with epilepsy, i.e.: amoxapine, bupropion, clomipramine and maprotiline. Clinicians applying first line of depression treatment in patients with epilepsy should consider use of SSRIs or SNRIs, particularly sertraline, citalopram, mirtazapine, reboxetine, paroxetine, fluoxetine, escitalopram, fluvoxamine, venlafaxine, duloxetine. Implementation of anticonvulsive drugs in depressed patients should include valproate, carbamazepine, lamotrigine, gabapentin, pregabalin. The paper reviews the evidence for the clinical use of antidepressants in PWE.
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Affiliation(s)
- Natalia Górska
- Department of Psychiatry, Faculty of Medicine, Medical University of Gdańsk, Gdańsk, Poland
| | - Jakub Słupski
- Department of Psychiatry, Faculty of Medicine, Medical University of Gdańsk, Gdańsk, Poland.
| | - Wiesław Jerzy Cubała
- Department of Psychiatry, Faculty of Medicine, Medical University of Gdańsk, Gdańsk, Poland
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203
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Si Y, Xiao X, Sun H. Mortality-specific comorbidity among inpatients with epilepsy: A preliminary cross-sectional study in West China. Epilepsy Behav 2018; 84:70-73. [PMID: 29753296 DOI: 10.1016/j.yebeh.2018.01.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/02/2018] [Accepted: 01/28/2018] [Indexed: 11/19/2022]
Abstract
PURPOSE The purpose of this study was to investigate the current condition of mortality-specific comorbidity among hospitalized patients with epilepsy (PWE). METHODS The discharge abstract records of PWE from over 730,000 admissions were extracted from the hospital medical database. Fourteen mortality-related comorbidities from an epilepsy-specific index (ESI) were selected for the present assessment. The hospital-based prevalence of these comorbidities was estimated. The distributions of PWE with an ESI-based prognostic score were calculated. RESULTS A cohort of 11,422 PWE (male 58.5%) was included in the present study. The order of comorbidities in terms of high to low prevalence ranking was as follows: hypertension (19.6%), peripheral vascular disease (8.1%), cardiac arrhythmias (5.8%), dementia (4.6%), renal disease (4.1%), congestive heart failure (3.8%), metastatic cancer (3.4%), brain tumor (2.4%), paraplegia and hemiplegia (2.0%), solid tumor without metastasis (1.7%), anoxic brain injury (1.4%), pulmonary circulation disorders (1.3%), moderate or severe liver disease (1.1%), and aspiration pneumonia (0.2%). High rates of comorbidities in the elderly were also noted. Spearman correlation analysis showed a moderate correlation between the changes in ages and prognostic score with a rho of 0.6 (p<0.001). The percentage of females with a score of 0 was higher than that of males (p<0.001), indicating that the prognostic survival of the majority of females was relatively longer than that of males. CONCLUSION Our study demonstrated that the comorbidity burden of female PWE was relatively lower than that of male PWE. High prevalence of cardiac and vascular diseases was found in PWE, thereby affecting the long-term survival rate. Considering that the propensity of increased comorbidity was prevalent with age, we should implement early preventive measures to manage the potential comorbidities associated with mortality, reduce disease burden, and prolong the survival of PWE.
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Affiliation(s)
- Yang Si
- Department of Neurology, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, 32# W. Sec 2, 1st Ring Rd., Chengdu 610072, Sichuan Province, China.
| | - Xiaoqiang Xiao
- Southwest Medical University, Luzhou 646000, Sichuan Province, China
| | - Hongbin Sun
- Department of Neurology, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, 32# W. Sec 2, 1st Ring Rd., Chengdu 610072, Sichuan Province, China.
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204
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Viguera AC, Fan Y, Thompson NR, Lapin B, Chaitoff A, Griffith SD, Miller DM, Jehi L, Katzan IL. Prevalence and Predictors of Depression Among Patients With Epilepsy, Stroke, and Multiple Sclerosis Using the Cleveland Clinic Knowledge Program Within the Neurological Institute. PSYCHOSOMATICS 2018; 59:369-378. [DOI: 10.1016/j.psym.2017.12.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 12/07/2017] [Accepted: 12/07/2017] [Indexed: 12/20/2022]
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206
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Perez DL, Keshavan MS, Scharf JM, Boes AD, Price BH. Bridging the Great Divide: What Can Neurology Learn From Psychiatry? J Neuropsychiatry Clin Neurosci 2018; 30:271-278. [PMID: 29939105 PMCID: PMC6309772 DOI: 10.1176/appi.neuropsych.17100200] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Neurology and psychiatry share common historical origins and rely on similar tools to study brain disorders. Yet the practical integration of medical and scientific approaches across these clinical neurosciences remains elusive. Although much has been written about the need to incorporate emerging systems-level, cellular-molecular, and genetic-epigenetic advances into a science of mind for psychiatric disorders, less attention has been given to applying clinical neuroscience principles to conceptualize neurologic conditions with an integrated neurobio-psycho-social approach. In this perspective article, the authors briefly outline the historically interwoven and complicated relationship between neurology and psychiatry. Through a series of vignettes, the authors then illustrate how some traditional psychiatric conditions are being reconceptualized in part as disorders of neurodevelopment and awareness. They emphasize the intersection of neurology and psychiatry by highlighting conditions that cut across traditional diagnostic boundaries. The authors argue that the divide between neurology and psychiatry can be narrowed by moving from lesion-based toward circuit-based understandings of neuropsychiatric disorders, from unidirectional toward bidirectional models of brain-behavior relationships, from exclusive reliance on categorical diagnoses toward transdiagnostic dimensional perspectives, and from silo-based research and treatments toward interdisciplinary approaches. The time is ripe for neurologists and psychiatrists to implement an integrated clinical neuroscience approach to the assessment and management of brain disorders. The subspecialty of behavioral neurology & neuropsychiatry is poised to lead the next generation of clinicians to merge brain science with psychological and social-cultural factors. These efforts will catalyze translational research, revitalize training programs, and advance the development of impactful patient-centered treatments.
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Affiliation(s)
- David L. Perez
- Behavioral Neurology Unit, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA
- Neuropsychiatry Unit, Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Matcheri S. Keshavan
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Jeremiah M. Scharf
- Movement Disorders Unit, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA
- Division of Cognitive and Behavioral Neurology, Department of Neurology, Brigham and Women’s Hospital, Boston, MA
| | - Aaron D. Boes
- Departments of Pediatrics, Neurology and Psychiatry, University of Iowa Health Care, Carver College of Medicine, Iowa City, IA
| | - Bruce H. Price
- Behavioral Neurology Unit, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA
- Department of Neurology, McLean Hospital, Harvard Medical School, Belmont, MA
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207
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The Expression Alteration of BC1 RNA and its Interaction with Eukaryotic Translation Initiation Factor eIF4A Post-Status Epilepticus. Neurochem Res 2018; 43:1328-1338. [PMID: 29774448 DOI: 10.1007/s11064-018-2548-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 05/07/2018] [Accepted: 05/12/2018] [Indexed: 01/08/2023]
Abstract
Abnormal dendritic sprouting and synaptic remodelling are important pathological features of temporal lobe epilepsy. BC1 RNA is a translation repressor involved in the regulation of the dendritic protein synthesis and mRNA transport, which is essential for dendritic development and plasticity. The expression alteration of BC1 RNA in the pilocarpine induced epilepsy model remains unknown. It is unclear if the interactions between BC1 RNA and eukaryotic initiation factor 4A (eIF4A) exists in this model. The purpose of this study was to investigate the expression changes of BC1 RNA and its interactions with eIF4A post-status epilepticus (SE). Chloride lithium and pilocarpine were used to induce the SE rat model. Either a whole brain or hippocampus tissues were collected at different time points after SE. The expression patterns of BC1 was detected by qPCR and in situ hybridization. The levels of eIF4AI/II protein expression were analyzed via western blotting and immunohistochemistry. The BC1 RNA-eIF4AI/II interaction was determined by electrophoretic mobility shift assay (EMSA). We found that the BC1 RNA levels decreased in hippocampus 3d, 1w and 2w post-SE before the levels recovered. The eIF4AI/II began to rise 3d post-SE and reached the maximum level 1w post-SE. After 1w post-SE the levels decreased in the hippocampal CA1, CA3 and DG subregions. EMSA analysis showed that BC1 RNA specifically interacted with the eIF4AI/II. The BC1 RNA-eIF4AI/II complex reduced to the lowest level 1w post-SE. Our results suggested that BC1 has a negative regulatory correlation with eIF4AI/II, where BC1 RNA could be involved in epileptogenesis by regulating dendritic protein synthesis.
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208
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Afra P, Bruggers CS, Sweney M, Fagatele L, Alavi F, Greenwald M, Huntsman M, Nguyen K, Jones JK, Shantz D, Bulaj G. Mobile Software as a Medical Device (SaMD) for the Treatment of Epilepsy: Development of Digital Therapeutics Comprising Behavioral and Music-Based Interventions for Neurological Disorders. Front Hum Neurosci 2018; 12:171. [PMID: 29780310 PMCID: PMC5946004 DOI: 10.3389/fnhum.2018.00171] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 04/12/2018] [Indexed: 12/29/2022] Open
Abstract
Digital health technologies for people with epilepsy (PWE) include internet-based resources and mobile apps for seizure management. Since non-pharmacological interventions, such as listening to specific Mozart's compositions, cognitive therapy, psychosocial and educational interventions were shown to reduce epileptic seizures, these modalities can be integrated into mobile software and delivered by mobile medical apps as digital therapeutics. Herein, we describe: (1) a survey study among PWE about preferences to use mobile software for seizure control, (2) a rationale for developing digital therapies for epilepsy, (3) creation of proof-of-concept mobile software intended for use as an adjunct digital therapeutic to reduce seizures, and (4) broader applications of digital therapeutics for the treatment of epilepsy and other chronic disorders. A questionnaire was used to survey PWE with respect to preferred features in a mobile app for seizure control. Results from the survey suggested that over 90% of responders would be interested in using a mobile app to manage their seizures, while 75% were interested in listening to specific music that can reduce seizures. To define digital therapeutic for the treatment of epilepsy, we designed and created a proof-of-concept mobile software providing digital content intended to reduce seizures. The rationale for all components of such digital therapeutic is described. The resulting web-based app delivered a combination of epilepsy self-care, behavioral interventions, medication reminders and the antiseizure music, such as the Mozart's sonata K.448. To improve long-term patient engagement, integration of mobile medical app with music and multimedia streaming via smartphones, tablets and computers is also discussed. This work aims toward development and regulatory clearance of software as medical device (SaMD) for seizure control, yielding the adjunct digital therapeutic for epilepsy, and subsequently a drug-device combination product together with specific antiseizure medications. Mobile medical apps, music, therapeutic video games and their combinations with prescription medications present new opportunities to integrate pharmacological and non-pharmacological interventions for PWE, as well as those living with other chronic disorders, including depression and pain.
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Affiliation(s)
- Pegah Afra
- Department of Neurology, University of Utah, Salt Lake City, UT, United States.,Department of Neurology, Weill Cornell Medicine, Cornell University, New York, NY, United States
| | - Carol S Bruggers
- Department of Pediatrics, University of Utah, Salt Lake City, UT, United States
| | - Matthew Sweney
- Department of Neurology, University of Utah, Salt Lake City, UT, United States.,Department of Pediatrics, University of Utah, Salt Lake City, UT, United States
| | - Lilly Fagatele
- Department of Neurology, University of Utah, Salt Lake City, UT, United States
| | - Fareeha Alavi
- Department of Neurology, University of Utah, Salt Lake City, UT, United States
| | - Michael Greenwald
- Department of Medicinal Chemistry, College of Pharmacy, University of Utah, Salt Lake City, UT, United States
| | - Merodean Huntsman
- Department of Medicinal Chemistry, College of Pharmacy, University of Utah, Salt Lake City, UT, United States
| | - Khanhly Nguyen
- Department of Medicinal Chemistry, College of Pharmacy, University of Utah, Salt Lake City, UT, United States
| | - Jeremiah K Jones
- Software Development Center, University of Utah, Salt Lake City, UT, United States
| | | | - Grzegorz Bulaj
- Department of Medicinal Chemistry, College of Pharmacy, University of Utah, Salt Lake City, UT, United States
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Simonato M. Epilepsy an Update on Disease Mechanisms: The Potential Role of MicroRNAs. Front Neurol 2018; 9:176. [PMID: 29615968 PMCID: PMC5868323 DOI: 10.3389/fneur.2018.00176] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 03/07/2018] [Indexed: 01/25/2023] Open
Abstract
So far, research on epilepsy mechanisms has been designed mainly using animal models and tracking down molecular mechanisms underlying seizures in that model. While this approach is clearly valuable, it can be questioned if it is the best possible. One attractive alternative approach may stem from the consideration of epilepsy as a complex disease of a very complex organ, the brain. This short review summarizes data from analyses of the alterations in expression of microRNAs and their target messenger RNAs in a specific brain subregion, the dentate gyrus of the hippocampus, in three experimental models of lesional epilepsy. The findings are discussed within the conceptual framework of complex systems.
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Affiliation(s)
- Michele Simonato
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy.,School of Medicine, University Vita-Salute San Raffaele, Milan, Italy
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211
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212
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Chan AY, Rolston JD, Rao VR, Chang EF. Effect of neurostimulation on cognition and mood in refractory epilepsy. Epilepsia Open 2018; 3:18-29. [PMID: 29588984 PMCID: PMC5839311 DOI: 10.1002/epi4.12100] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2018] [Indexed: 01/20/2023] Open
Abstract
Epilepsy is a common, debilitating neurological disorder characterized by recurrent seizures. Mood disorders and cognitive deficits are common comorbidities in epilepsy that, like seizures, profoundly influence quality of life and can be difficult to treat. For patients with refractory epilepsy who are not candidates for resection, neurostimulation, the electrical modulation of epileptogenic brain tissue, is an emerging treatment alternative. Several forms of neurostimulation are currently available, and therapy selection hinges on relative efficacy for seizure control and amelioration of neuropsychiatric comorbidities. Here, we review the current evidence for how invasive and noninvasive neurostimulation therapies affect mood and cognition in persons with epilepsy. Invasive therapies include vagus nerve stimulation (VNS), deep brain stimulation (DBS), and responsive neurostimulation (RNS). Noninvasive therapies include trigeminal nerve stimulation (TNS), repetitive transcranial magnetic stimulation (rTMS), and transcranial direct current stimulation (tDCS). Overall, current evidence supports stable cognition and mood with all neurostimulation therapies, although there is some evidence that cognition and mood may improve with invasive forms of neurostimulation. More research is required to optimize the effects of neurostimulation for improvements in cognition and mood.
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Affiliation(s)
- Alvin Y. Chan
- Department of Neurological SurgeryMedical College of WisconsinMilwaukeeWisconsinU.S.A.
| | - John D. Rolston
- Department of Neurological SurgeryUniversity of UtahSalt Lake CityUtahU.S.A.
| | - Vikram R. Rao
- Department of NeurologyUniversity of California, San FranciscoSan FranciscoCaliforniaU.S.A.
| | - Edward F. Chang
- Department of Neurological SurgeryUniversity of California, San FranciscoSan FranciscoCaliforniaU.S.A.
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213
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Wiggs KK, Chang Z, Quinn PD, Hur K, Gibbons R, Dunn D, Brikell I, Larsson H, D'Onofrio BM. Attention-deficit/hyperactivity disorder medication and seizures. Neurology 2018; 90:e1104-e1110. [PMID: 29476037 DOI: 10.1212/wnl.0000000000005213] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 12/12/2017] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE Individuals with attention-deficit/hyperactivity disorder (ADHD) are at increased risk of seizures, but there is uncertainty about whether ADHD medication treatment increases risk among patients with and without preexisting seizures. METHODS We followed a sample of 801,838 patients with ADHD who had prescribed drug claims from the Truven Health MarketScan Commercial Claims and Encounters databases to examine whether ADHD medication increases the likelihood of seizures among ADHD patients with and without a history of seizures. First, we assessed overall risk of seizures among patients with ADHD. Second, within-individual concurrent analyses assessed odds of seizure events during months when a patient with ADHD received ADHD medication compared with when the same individual did not, while adjusting for antiepileptic medications. Third, within-individual long-term analyses examined odds of seizure events in relation to the duration of months over the previous 2 years patients received medication. RESULTS Patients with ADHD were at higher odds for any seizure compared with non-ADHD controls (odds ratio [OR] = 2.33, 95% confidence interval [CI] = 2.24-2.42 males; OR = 2.31, 95% CI = 2.22-2.42 females). In adjusted within-individual comparisons, ADHD medication was associated with lower odds of seizures among patients with (OR = 0.71, 95% CI = 0.60-0.85) and without (OR = 0.71, 95% CI = 0.62-0.82) prior seizures. Long-term within-individual comparisons suggested no evidence of an association between medication use and seizures among individuals with (OR = 0.87, 95% CI = 0.59-1.30) and without (OR = 1.01, 95% CI = 0.80-1.28) a seizure history. CONCLUSIONS Results reaffirm that patients with ADHD are at higher risk of seizures. However, ADHD medication was associated with lower risk of seizures within individuals while they were dispensed medication, which is not consistent with the hypothesis that ADHD medication increases risk of seizures.
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Affiliation(s)
- Kelsey K Wiggs
- From the Department of Psychological and Brain Sciences (K.K.W., P.D.Q., B.M.D.), Indiana University, Bloomington; Department of Medical Epidemiology and Biostatistics (Z.C., I.B., H.L.), Karolinska Institutet, Stockholm, Sweden; Center for Health Statistics (Z.C., P.D.Q., K.H., R.G.) and Departments of Medicine (R.G.) and Public Health Sciences (R.G.), University of Chicago, IL; Departments of Psychiatry (D.D.) and Neurology (D.D.), Indiana University School of Medicine, Indianapolis; and School of Medical Sciences (H.L.), Orebro University, Sweden.
| | - Zheng Chang
- From the Department of Psychological and Brain Sciences (K.K.W., P.D.Q., B.M.D.), Indiana University, Bloomington; Department of Medical Epidemiology and Biostatistics (Z.C., I.B., H.L.), Karolinska Institutet, Stockholm, Sweden; Center for Health Statistics (Z.C., P.D.Q., K.H., R.G.) and Departments of Medicine (R.G.) and Public Health Sciences (R.G.), University of Chicago, IL; Departments of Psychiatry (D.D.) and Neurology (D.D.), Indiana University School of Medicine, Indianapolis; and School of Medical Sciences (H.L.), Orebro University, Sweden
| | - Patrick D Quinn
- From the Department of Psychological and Brain Sciences (K.K.W., P.D.Q., B.M.D.), Indiana University, Bloomington; Department of Medical Epidemiology and Biostatistics (Z.C., I.B., H.L.), Karolinska Institutet, Stockholm, Sweden; Center for Health Statistics (Z.C., P.D.Q., K.H., R.G.) and Departments of Medicine (R.G.) and Public Health Sciences (R.G.), University of Chicago, IL; Departments of Psychiatry (D.D.) and Neurology (D.D.), Indiana University School of Medicine, Indianapolis; and School of Medical Sciences (H.L.), Orebro University, Sweden
| | - Kwan Hur
- From the Department of Psychological and Brain Sciences (K.K.W., P.D.Q., B.M.D.), Indiana University, Bloomington; Department of Medical Epidemiology and Biostatistics (Z.C., I.B., H.L.), Karolinska Institutet, Stockholm, Sweden; Center for Health Statistics (Z.C., P.D.Q., K.H., R.G.) and Departments of Medicine (R.G.) and Public Health Sciences (R.G.), University of Chicago, IL; Departments of Psychiatry (D.D.) and Neurology (D.D.), Indiana University School of Medicine, Indianapolis; and School of Medical Sciences (H.L.), Orebro University, Sweden
| | - Robert Gibbons
- From the Department of Psychological and Brain Sciences (K.K.W., P.D.Q., B.M.D.), Indiana University, Bloomington; Department of Medical Epidemiology and Biostatistics (Z.C., I.B., H.L.), Karolinska Institutet, Stockholm, Sweden; Center for Health Statistics (Z.C., P.D.Q., K.H., R.G.) and Departments of Medicine (R.G.) and Public Health Sciences (R.G.), University of Chicago, IL; Departments of Psychiatry (D.D.) and Neurology (D.D.), Indiana University School of Medicine, Indianapolis; and School of Medical Sciences (H.L.), Orebro University, Sweden
| | - David Dunn
- From the Department of Psychological and Brain Sciences (K.K.W., P.D.Q., B.M.D.), Indiana University, Bloomington; Department of Medical Epidemiology and Biostatistics (Z.C., I.B., H.L.), Karolinska Institutet, Stockholm, Sweden; Center for Health Statistics (Z.C., P.D.Q., K.H., R.G.) and Departments of Medicine (R.G.) and Public Health Sciences (R.G.), University of Chicago, IL; Departments of Psychiatry (D.D.) and Neurology (D.D.), Indiana University School of Medicine, Indianapolis; and School of Medical Sciences (H.L.), Orebro University, Sweden
| | - Isabell Brikell
- From the Department of Psychological and Brain Sciences (K.K.W., P.D.Q., B.M.D.), Indiana University, Bloomington; Department of Medical Epidemiology and Biostatistics (Z.C., I.B., H.L.), Karolinska Institutet, Stockholm, Sweden; Center for Health Statistics (Z.C., P.D.Q., K.H., R.G.) and Departments of Medicine (R.G.) and Public Health Sciences (R.G.), University of Chicago, IL; Departments of Psychiatry (D.D.) and Neurology (D.D.), Indiana University School of Medicine, Indianapolis; and School of Medical Sciences (H.L.), Orebro University, Sweden
| | - Henrik Larsson
- From the Department of Psychological and Brain Sciences (K.K.W., P.D.Q., B.M.D.), Indiana University, Bloomington; Department of Medical Epidemiology and Biostatistics (Z.C., I.B., H.L.), Karolinska Institutet, Stockholm, Sweden; Center for Health Statistics (Z.C., P.D.Q., K.H., R.G.) and Departments of Medicine (R.G.) and Public Health Sciences (R.G.), University of Chicago, IL; Departments of Psychiatry (D.D.) and Neurology (D.D.), Indiana University School of Medicine, Indianapolis; and School of Medical Sciences (H.L.), Orebro University, Sweden
| | - Brian M D'Onofrio
- From the Department of Psychological and Brain Sciences (K.K.W., P.D.Q., B.M.D.), Indiana University, Bloomington; Department of Medical Epidemiology and Biostatistics (Z.C., I.B., H.L.), Karolinska Institutet, Stockholm, Sweden; Center for Health Statistics (Z.C., P.D.Q., K.H., R.G.) and Departments of Medicine (R.G.) and Public Health Sciences (R.G.), University of Chicago, IL; Departments of Psychiatry (D.D.) and Neurology (D.D.), Indiana University School of Medicine, Indianapolis; and School of Medical Sciences (H.L.), Orebro University, Sweden
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Kumar N, Colon-Zimmermann K, Fuentes-Casiano E, Liu H, Tatsuoka C, Cassidy KA, Kahriman M, Chen P, Sajatovic M. Clinical correlates of negative health events in a research sample with epilepsy. Epilepsy Behav 2018; 79:225-229. [PMID: 29279188 PMCID: PMC6231550 DOI: 10.1016/j.yebeh.2017.11.037] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 11/26/2017] [Accepted: 11/29/2017] [Indexed: 11/19/2022]
Abstract
AIMS In spite of advances in care, people with epilepsy experience negative health events (NHEs), such as seizures, emergency department (ED) visits, and hospitalizations. Being able to identify characteristics that are associated with NHE risk can help inform care approaches that reduce complications and burden. This analysis using baseline data from a larger randomized epilepsy self-management clinical trial assessed the relationship between demographic and clinical variables vs. seizure-related complications among people with epilepsy. METHODS Data were derived from a baseline sample of a larger prospective study of 120 individuals with epilepsy who experienced an NHE within the last 6months. Demographic characteristics, depression assessed with the 9-item Patient Health Questionnaire (PHQ-9) and the Montgomery-Asberg Depression rating scale (MADRS), quality of life assessed with the 10-item Quality of Life in Epilepsy Inventory (QOLIE-10), self-efficacy assessed the Epilepsy Self-Efficacy Scale (ESES), social support assessed with the Multidimensional Scale of Perceived Social Support (MSPSS), self-management assessed with the Epilepsy Self-Management Scale (ESMS), and stigma assessed with the Epilepsy Stigma Scale (ESS) were all examined in association with past 6-month NHE frequency and 30-day seizure frequency. RESULTS Except for lower levels of education and lower levels of income being associated with higher 30-day and 6-month seizure frequency, demographic variables were generally not significantly associated with NHEs. Higher 30-day seizure frequency was associated with greater depression severity on PHQ-9 (p<0.01) and MADRS (p<0.01). Higher 6-month seizure frequency was also associated with greater depression severity on PHQ-9 (p<.001) and MADRS (p=0.03). Both 30-day and 6-month seizure frequency were significantly negatively associated with QOLIE-10 (p<0.001). Both 30day (p=0.01) and 6-month (p=0.03) seizure frequency were associated with worse stigma on ESS. Total NHE count was associated with more severe depression on PHQ-9 (p=0.02), and MADRS (p=0.04), worse quality of life on QOLIE-10 (p<0.01), and more stigma on ESS (p=0.03). CONCLUSIONS Consistent with previous literature, more frequent seizures were associated with worse depression severity and quality of life. A finding that is less established is that higher seizure frequency is also associated with worse epilepsy-related stigma. Epilepsy self-management approaches need to address depression and stigma as well as seizure control.
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Affiliation(s)
- Neha Kumar
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Kari Colon-Zimmermann
- Department of Neurology, Neurological & Behavioral Outcomes Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Edna Fuentes-Casiano
- Department of Psychiatry, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Hongyan Liu
- Department of Neurology, Neurological & Behavioral Outcomes Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Curtis Tatsuoka
- Department of Neurology, Neurological & Behavioral Outcomes Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Kristin A Cassidy
- Department of Psychiatry, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Mustafa Kahriman
- Department of Neurology, Lois stokes Cleveland VAMC, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Peijun Chen
- Department of Psychiatry, Lois Stokes Cleveland VAMC, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Martha Sajatovic
- Department of Psychiatry and of Neurology, Neurological & Behavioral Outcomes Center, Case Western Reserve University School of Medicine and University Hospitals Cleveland Medical Center, Cleveland, OH, USA.
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Lippert T, Gelineau L, Napoli E, Borlongan CV. Harnessing neural stem cells for treating psychiatric symptoms associated with fetal alcohol spectrum disorder and epilepsy. Prog Neuropsychopharmacol Biol Psychiatry 2018; 80:10-22. [PMID: 28365374 DOI: 10.1016/j.pnpbp.2017.03.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 03/09/2017] [Indexed: 12/20/2022]
Abstract
Brain insults with progressive neurodegeneration are inherent in pathological symptoms that represent many psychiatric illnesses. Neural network disruptions characterized by impaired neurogenesis have been recognized to precede, accompany, and possibly even exacerbate the evolution and progression of symptoms of psychiatric disorders. Here, we focus on the neurodegeneration and the resulting psychiatric symptoms observed in fetal alcohol spectrum disorder and epilepsy, in an effort to show that these two diseases are candidate targets for stem cell therapy. In particular, we provide preclinical evidence in the transplantation of neural stem cells (NSCs) in both conditions, highlighting the potential of this cell-based treatment for correcting the psychiatric symptoms that plague these two disorders. Additionally, we discuss the challenges of NSC transplantation and offer insights into the mechanisms that may mediate the therapeutic benefits and can be exploited to overcome the hurdles of translating this therapy from the laboratory to the clinic. Our ultimate goal is to advance stem cell therapy for the treatment of psychiatric disorders.
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Affiliation(s)
- Trenton Lippert
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, 12901 Bruce B. Downs Blvd. MDC 78, Tampa, FL 33612, USA
| | - Lindsey Gelineau
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, 12901 Bruce B. Downs Blvd. MDC 78, Tampa, FL 33612, USA
| | - Eleonora Napoli
- Department of Molecular Biosciences, 3011 VM3B 1089 Veterinary Medicine Drive, University of California Davis, Davis, CA 95616, USA..
| | - Cesar V Borlongan
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, 12901 Bruce B. Downs Blvd. MDC 78, Tampa, FL 33612, USA.
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216
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Zhao H, Lin Y, Chen S, Li X, Huo H. 5-HT3 Receptors: A Potential Therapeutic Target for Epilepsy. Curr Neuropharmacol 2018; 16:29-36. [PMID: 28486926 PMCID: PMC5771379 DOI: 10.2174/1570159x15666170508170412] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 06/23/2017] [Accepted: 04/25/2017] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Epilepsy is a syndrome of brain dysfunction caused by spontaneous, abnormal discharge. Many anti-epileptic drugs have developed in past decades. 5-HT is an important neurotransmitter in the central and peripheral nervous system of the human body which is involved in a number of physiological activities, such as sensation, movement, and behavior. 5-HT subtype have been divided into seven sub-groups from 5-HT1 to 5HT7. However, the role of 5-HT3 receptor on epilepsy is unclear. Therefore, in this article, the possible role of 5-HT3 receptor on epilepsy was systemically reviewed. METHODS Data were collected from Web of Science, Medline, Pubmed, Scopus, through searching of these keywords: "5-HT3" and "epilepsy". RESULTS An increasing number of studies have shown that the activation of the 5-HT3 receptor can inhibit epileptic seizures, while inhibition of the 5-HT3 receptor can promote spike waves. CONCLUSION In this review, we discuss the relationship between the 5HT3 receptor and epilepsy; this review may provide a new insight for clinical application of epilepsy treatment.
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Affiliation(s)
- Hongyan Zhao
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun130041, P.R. China
- School of Life Science Northeast Normal University, Changchun, Jilin130024, P.R. China
| | - Yang Lin
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun130041, P.R. China
| | - Shurui Chen
- Jinzhou Medical University, Jinzhou 121000, P.R. China
| | - Xin Li
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun130041, P.R. China
| | - Hongliang Huo
- School of Life Science Northeast Normal University, Changchun, Jilin130024, P.R. China
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Scharfman HE, Kanner AM, Friedman A, Blümcke I, Crocker CE, Cendes F, Diaz-Arrastia R, Förstl H, Fenton AA, Grace AA, Palop J, Morrison J, Nehlig A, Prasad A, Wilcox KS, Jette N, Pohlmann-Eden B. Epilepsy as a Network Disorder (2): What can we learn from other network disorders such as dementia and schizophrenia, and what are the implications for translational research? Epilepsy Behav 2018; 78:302-312. [PMID: 29097123 PMCID: PMC5756681 DOI: 10.1016/j.yebeh.2017.09.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 09/18/2017] [Accepted: 09/18/2017] [Indexed: 12/18/2022]
Abstract
There is common agreement that many disorders of the central nervous system are 'complex', that is, there are many potential factors that influence the development of the disease, underlying mechanisms, and successful treatment. Most of these disorders, unfortunately, have no cure at the present time, and therapeutic strategies often have debilitating side effects. Interestingly, some of the 'complexities' of one disorder are found in another, and the similarities are often network defects. It seems likely that more discussions of these commonalities could advance our understanding and, therefore, have clinical implications or translational impact. With this in mind, the Fourth International Halifax Epilepsy Conference and Retreat was held as described in the prior paper, and this companion paper focuses on the second half of the meeting. Leaders in various subspecialties of epilepsy research were asked to address aging and dementia or psychosis in people with epilepsy (PWE). Commonalities between autism, depression, aging and dementia, psychosis, and epilepsy were the focus of the presentations and discussion. In the last session, additional experts commented on new conceptualization of translational epilepsy research efforts. Here, the presentations are reviewed, and salient points are highlighted.
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Affiliation(s)
- Helen E Scharfman
- Departments of Psychiatry, Neurosciences and Physiology, and the Neuroscience Institute, New York University Langone Medical Center, New York, NY 10016, USA.
| | - Andres M Kanner
- University of Miami, Miller School of Medicine, 1120 NW 14th Street, Room #1324, Miami, FL 33136, USA
| | - Alon Friedman
- Department of Medical Neuroscience, Faculty of Medicine, Dalhousie University, Halifax, NS, Canada; Department of Pediatrics, Faculty of Medicine, Dalhousie University, Halifax, NS, Canada; Department of Physiology and Cell Biology, Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Ingmar Blümcke
- Neuropathological Institute, University Hospitals Erlangen, Germany
| | - Candice E Crocker
- Nova Scotia Early Psychosis Program, Department of Psychiatry, Dalhousie University, Halifax, NS, Canada
| | - Fernando Cendes
- Department of Neurology, University of Campinas, 13083-888 Campinas, Sao Paulo, Brazil
| | - Ramon Diaz-Arrastia
- Centre for Neuroscience & Regenerative Medicine, Uniformed Services University of the Health Sciences, 12725 Twinbrook Parkway, Rockville, MD 20852, USA
| | - Hans Förstl
- Department of Psychiatry, University of Munich, Klinikum rechts der Isar, Ismaninger Strabe 22, D-81675 Munich, Germany
| | - André A Fenton
- Centre for Neural Science, New York University, 4 Washington Place, Room 809, New York, NY 10003, USA
| | - Anthony A Grace
- University of Pittsburgh, 456 Langley Hall, 4200 Fifth Avenue, Pittsburgh, PA 15269, USA
| | - Jorge Palop
- Department of Neurology, Gladstone Institute, 1650 Owens Street, San Francisco, CA 94158-2261, USA
| | - Jason Morrison
- Department of Psychiatry, Dalhousie University, Halifax, NS, Canada
| | - Astrid Nehlig
- INSERM U 1129, Hôpital Necker, Paris, Faculty of Medicine, Strasbourg, France
| | - Asuri Prasad
- Department of Pediatrics, Children's Hospital of Western Ontario, London, ON, Canada
| | - Karen S Wilcox
- Department of Pharmacology & Toxicology, Anticonvulsant Drug Development Program, University of Utah, Salt Lake City, UT, USA
| | - Nathalie Jette
- Icahn School of Medicine at Mount Sinai, Department of Neurology, New York, NY, USA; Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
| | - Bernd Pohlmann-Eden
- Brain Repair Center, Life Science Research Institute, Dalhousie University, Room 229, PO Box 15000, Halifax, NS B3H4R2, Canada.
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218
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Nguyen HT, Bryois J, Kim A, Dobbyn A, Huckins LM, Munoz-Manchado AB, Ruderfer DM, Genovese G, Fromer M, Xu X, Pinto D, Linnarsson S, Verhage M, Smit AB, Hjerling-Leffler J, Buxbaum JD, Hultman C, Sklar P, Purcell SM, Lage K, He X, Sullivan PF, Stahl EA. Integrated Bayesian analysis of rare exonic variants to identify risk genes for schizophrenia and neurodevelopmental disorders. Genome Med 2017; 9:114. [PMID: 29262854 PMCID: PMC5738153 DOI: 10.1186/s13073-017-0497-y] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 11/16/2017] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Integrating rare variation from trio family and case-control studies has successfully implicated specific genes contributing to risk of neurodevelopmental disorders (NDDs) including autism spectrum disorders (ASD), intellectual disability (ID), developmental disorders (DDs), and epilepsy (EPI). For schizophrenia (SCZ), however, while sets of genes have been implicated through the study of rare variation, only two risk genes have been identified. METHODS We used hierarchical Bayesian modeling of rare-variant genetic architecture to estimate mean effect sizes and risk-gene proportions, analyzing the largest available collection of whole exome sequence data for SCZ (1,077 trios, 6,699 cases, and 13,028 controls), and data for four NDDs (ASD, ID, DD, and EPI; total 10,792 trios, and 4,058 cases and controls). RESULTS For SCZ, we estimate there are 1,551 risk genes. There are more risk genes and they have weaker effects than for NDDs. We provide power analyses to predict the number of risk-gene discoveries as more data become available. We confirm and augment prior risk gene and gene set enrichment results for SCZ and NDDs. In particular, we detected 98 new DD risk genes at FDR < 0.05. Correlations of risk-gene posterior probabilities are high across four NDDs (ρ>0.55), but low between SCZ and the NDDs (ρ<0.3). An in-depth analysis of 288 NDD genes shows there is highly significant protein-protein interaction (PPI) network connectivity, and functionally distinct PPI subnetworks based on pathway enrichment, single-cell RNA-seq cell types, and multi-region developmental brain RNA-seq. CONCLUSIONS We have extended a pipeline used in ASD studies and applied it to infer rare genetic parameters for SCZ and four NDDs ( https://github.com/hoangtn/extTADA ). We find many new DD risk genes, supported by gene set enrichment and PPI network connectivity analyses. We find greater similarity among NDDs than between NDDs and SCZ. NDD gene subnetworks are implicated in postnatally expressed presynaptic and postsynaptic genes, and for transcriptional and post-transcriptional gene regulation in prenatal neural progenitor and stem cells.
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Affiliation(s)
- Hoang T. Nguyen
- Division of Psychiatric Genomics, Department of Genetics and Genomic Sciences, Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, 10029 NY USA
| | - Julien Bryois
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - April Kim
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts USA
- Department of Surgery, Massachusetts General Hospital, Boston, 02114 MA USA
| | - Amanda Dobbyn
- Division of Psychiatric Genomics, Department of Genetics and Genomic Sciences, Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, 10029 NY USA
- Charles Bronfman Institute for Personalized Medicine, Icahn School of Medicine at Mount Sinai, New York, 10029 NY USA
| | - Laura M. Huckins
- Division of Psychiatric Genomics, Department of Genetics and Genomic Sciences, Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, 10029 NY USA
| | - Ana B. Munoz-Manchado
- Laboratory of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, SE-17177 Sweden
| | - Douglas M. Ruderfer
- Division of Genetic Medicine, Departments of Medicine, Psychiatry and Biomedical Informatics, Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, 37235 TN USA
| | - Giulio Genovese
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts USA
- Department of Genetics, Harvard Medical School, Cambridge, Massachusetts USA
| | - Menachem Fromer
- Verily Life Sciences, 269 E Grand Ave, South San Francisco, 94080 CA USA
| | - Xinyi Xu
- Seaver Autism Center, Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, 10029 NY USA
| | - Dalila Pinto
- Division of Psychiatric Genomics, Department of Genetics and Genomic Sciences, Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, 10029 NY USA
- Seaver Autism Center, Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, 10029 NY USA
- The Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, 10029 NY USA
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, 10029 NY USA
| | - Sten Linnarsson
- Laboratory of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, SE-17177 Sweden
| | - Matthijs Verhage
- Department of Functional Genomics, The Center for Neurogenomics and Cognitive Research, VU University and VU Medical Center, Amsterdam, The Netherlands
| | - August B. Smit
- Department of Molecular and Cellular Neurobiology, The Center for Neurogenomics and Cognitive Research, VU University, Amsterdam, The Netherlands
| | - Jens Hjerling-Leffler
- Laboratory of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, SE-17177 Sweden
| | - Joseph D. Buxbaum
- Seaver Autism Center, Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, 10029 NY USA
| | - Christina Hultman
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Pamela Sklar
- Division of Psychiatric Genomics, Department of Genetics and Genomic Sciences, Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, 10029 NY USA
| | - Shaun M. Purcell
- Division of Psychiatric Genomics, Department of Genetics and Genomic Sciences, Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, 10029 NY USA
- Sleep Center, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts USA
| | - Kasper Lage
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts USA
- Department of Surgery, Massachusetts General Hospital, Boston, 02114 MA USA
| | - Xin He
- Department of Human Genetics, University of Chicago, Chicago, 60637 IL USA
| | - Patrick F. Sullivan
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Departments of Genetics and Psychiatry, University of North Carolina, Chapel Hill, 27599-7264 North Carolina USA
| | - Eli A. Stahl
- Division of Psychiatric Genomics, Department of Genetics and Genomic Sciences, Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, 10029 NY USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts USA
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Kanner AM, Scharfman H, Jette N, Anagnostou E, Bernard C, Camfield C, Camfield P, Legg K, Dinstein I, Giacobe P, Friedman A, Pohlmann-Eden B. Epilepsy as a Network Disorder (1): What can we learn from other network disorders such as autistic spectrum disorder and mood disorders? Epilepsy Behav 2017; 77:106-113. [PMID: 29107450 PMCID: PMC9835466 DOI: 10.1016/j.yebeh.2017.09.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 09/16/2017] [Indexed: 01/16/2023]
Abstract
Epilepsy is a neurologic condition which often occurs with other neurologic and psychiatric disorders. The relation between epilepsy and these conditions is complex. Some population-based studies have identified a bidirectional relation, whereby not only patients with epilepsy are at increased risk of suffering from some of these neurologic and psychiatric disorders (migraine, stroke, dementia, autism, depression, anxiety disorders, Attention deficit hyperactivity disorder (ADHD), and psychosis), but also patients with these conditions are at increased risk of suffering from epilepsy. The existence of common pathogenic mechanisms has been postulated as a potential explanation of this phenomenon. To reassess the relationships between neurological and psychiatric conditions in general, and specifically autism, depression, Alzheimer's disease, schizophrenia, and epilepsy, a recent meeting brought together basic researchers and clinician scientists entitled "Epilepsy as a Network Disorder." This was the fourth in a series of conferences, the "Fourth International Halifax Conference and Retreat". This manuscript summarizes the proceedings on potential relations between Epilepsy on the one hand and autism and depression on the other. A companion manuscript provides a summary of the proceedings about the relation between epilepsy and Alzheimer's disease and schizophrenia, closed by the role of translational research in clarifying these relationships. The review of the topics in these two manuscripts will provide a better understanding of the mechanisms operant in some of the common neurologic and psychiatric comorbidities of epilepsy.
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Affiliation(s)
- Andres M. Kanner
- Department of Neurology, University of Miami, Miller School of Medicine, 1120 NW 14th Street, Room #1324, Miami, FL 33136, USA,Corresponding author. (A.M. Kanner)
| | - Helen Scharfman
- New York University Langone Medical Center, New York, NY 10016, USA,The Nathan Kline Institute, Orangeburg, NY, USA
| | - Nathalie Jette
- Icahn School of Medicine at Mount Sinai, Department of Neurology, New York, NY, USA,Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
| | - Evdokia Anagnostou
- Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, 150 Kilgour Road, Toronto, ON M4G 1R8, Canada
| | - Christophe Bernard
- NS – Institute de Neurosciences des Systemes, UMR INSERM 1106, Aix-Marseille Université, Equipe Physionet, 27 Bd Jean Moulin, 13385 Marseille Cedex 05, France
| | - Carol Camfield
- Department of Pediatrics, Dalhousie University Halifax, Nova Scotia, Canada
| | - Peter Camfield
- Department of Pediatrics, Dalhousie University Halifax, Nova Scotia, Canada
| | - Karen Legg
- Division of Neurology, Department of Medicine, Halifax Infirmary, Halifax B3H4R2, Nova Scotia, Canada
| | - Ilan Dinstein
- Departments of Psychology and Brain & Cognitive Sciences, Zlotowski Centre for Neuroscience, Ben-Gurion University of the Negev, Be'er Sheva, Israel
| | - Peter Giacobe
- Centre for Mental Health, University of Toronto, University Health Network, Canada
| | - Alon Friedman
- Departments of Physiology and Cell Biology, Brain & Cognitive Sciences, Zlotowski Centre for Neuroscience, Ben-Gurion University of the Negev, Be'er Sheva, Israel,Departments of Medical Neuroscience and Pediatrics, Faculty of Medicine, Dalhousie University Halifax, NS, Canada
| | - Bernd Pohlmann-Eden
- Brain Repair Center, Life Science Research Institute, Dalhousie University, Room 229, PO Box 15000, Halifax, Nova Scotia B3H4R2, Canada
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Zhu X, Dong J, Han B, Huang R, Zhang A, Xia Z, Chang H, Chao J, Yao H. Neuronal Nitric Oxide Synthase Contributes to PTZ Kindling-Induced Cognitive Impairment and Depressive-Like Behavior. Front Behav Neurosci 2017; 11:203. [PMID: 29093670 PMCID: PMC5651248 DOI: 10.3389/fnbeh.2017.00203] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 10/06/2017] [Indexed: 12/14/2022] Open
Abstract
Epilepsy is a chronic neurological disease which is usually associated with psychiatric comorbidities. Depsression and cognition impairment are considered to be the most common psychiatric comorbidities in epilepsy patients. However, the specific contribution of epilepsy made to these psychiatric comorbidities remains largely unknown. Here we use pentylenetetrazole (PTZ) kindling, a chronic epilepsy model, to identify neuronal nitric oxide synthase (nNOS) as a signaling molecule triggering PTZ kindling-induced cognitive impairment and depressive-like behavior. Furthermore, we identified that both hippocampal MAPK and PI3K/AKT signaling pathways were activated in response to PTZ kindling, and the increased MAPK and PI3K/AKT signaling activation was paralleled by increased level of reactive oxygen species (ROS) in the hippocampus. However, the PTZ kindling-induced MAPK, PI3K/AKT signaling activities and the ROS level were attenuated by nNOS gene deficiency, suggesting that nNOS may act through ROS-mediated MAPK and PI3K/AKT signaling pathways to trigger cognition deficit and depressive-like behavior in PTZ-kindled mice. Our findings thus define a specific mechanism for chronic epilepsy-induced cognitive impairment and depressive-like behavior, and identify a potential therapeutic target for psychiatric comorbidities in chronic epilepsy patients.
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Affiliation(s)
- Xinjian Zhu
- Department of Pharmacology, Medical School of Southeast University, Nanjing, China
| | - Jingde Dong
- Department of Geriatric Neurology, Nanjing Brain Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Bing Han
- Department of Pharmacology, Medical School of Southeast University, Nanjing, China
| | - Rongrong Huang
- Department of Pharmacology, Medical School of Southeast University, Nanjing, China
| | - Aifeng Zhang
- Department of Pathology, Medical School of Southeast University, Nanjing, China
| | - Zhengrong Xia
- Analysis and Test Center of Nanjing Medical University, Nanjing, China
| | - Huanhuan Chang
- Nanjing Biomedical Research Institute of Nanjing University, Nanjing, China
| | - Jie Chao
- Department of Physiology, Medical School of Southeast University, Nanjing, China
| | - Honghong Yao
- Department of Pharmacology, Medical School of Southeast University, Nanjing, China
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Chung S, Williams B, Dobrinsky C, Patten A, Yang H, Laurenza A. Perampanel with concomitant levetiracetam and topiramate: Post hoc analysis of adverse events related to hostility and aggression. Epilepsy Behav 2017; 75:79-85. [PMID: 28830031 DOI: 10.1016/j.yebeh.2017.06.038] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 05/29/2017] [Accepted: 06/30/2017] [Indexed: 11/24/2022]
Abstract
In 4 Phase III registration trials (3 in patients with partial seizures, N=1480; 1 in patients with PGTCS, N=163), perampanel administered to patients already receiving 1-3 concomitant antiepileptic drugs (AEDs) demonstrated statistically superior efficacy compared to placebo in reducing seizure frequency. However, use of perampanel in these studies was associated with a risk of psychiatric and behavioral adverse reactions, including aggression, hostility, irritability, anger, and homicidal ideation and threats. The present study is a post hoc analysis of pooled data from these 4 trials to determine if concomitant treatment with levetiracetam and/or topiramate increased the risk of hostility- and aggression-related AEs. Treatment-emergent AEs (TEAEs) were determined using a "Narrow & Broad" search based on the Medical Dictionary for Regulatory Activities (MedDRA) standard MedDRA query (SMQ) for hostility- and aggression-related events. The rate of hostility- and aggression-related TEAEs was observed to be similar among perampanel-treated patients: a) receiving levetiracetam (N=340) compared to those not receiving levetiracetam (N=779); b) receiving topiramate (N=223) compared to those not receiving topiramate (N=896); and c) receiving both levetiracetam and topiramate (N=47) compared to those not receiving levetiracetam and topiramate (N=1072). Severe and serious TEAEs related to hostility and aggression were rare and occurred at a similar rate regardless of concomitant levetiracetam and/or topiramate therapy. Taken together, these results suggest that concomitant treatment with levetiracetam and/or topiramate has no appreciable effect on the occurrence of hostility- or aggression-related TEAEs in patients receiving perampanel.
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Affiliation(s)
- Steve Chung
- Banner University Medical Center, Phoenix, AZ, USA.
| | - Betsy Williams
- Eisai Medical and Scientific Affairs, Eisai Inc., 100 Tice Blvd., Woodcliff Lake, NJ 07677, USA.
| | - Cindy Dobrinsky
- Eisai Medical and Scientific Affairs, Eisai Inc., 100 Tice Blvd., Woodcliff Lake, NJ 07677, USA.
| | - Anna Patten
- Eisai Ltd., European Knowledge Centre, Mosquito Way, Hatfield, Hertfordshire AL10 9SN, UK.
| | - Haichen Yang
- Formerly Eisai Neuroscience Product Creation Unit, Eisai Inc., 155 Tice Blvd., Woodcliff Lake, NJ 07677, USA
| | - Antonio Laurenza
- Eisai Neurology Business Group, Eisai Inc., 155 Tice Blvd., Woodcliff Lake, NJ 07677, USA.
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Kasper BS, Vaccarella M. Is epilepsy surgery a threat to a patient's self? A conversation. Epilepsy Behav 2017; 75:264-268. [PMID: 28827042 DOI: 10.1016/j.yebeh.2017.05.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 05/19/2017] [Indexed: 11/25/2022]
Affiliation(s)
- Burkhard S Kasper
- Friedrich-Alexander University Erlangen-Nuremberg, Dept. Neurology, Epilepsy Center, Schwabachanlage 6, 91054 Erlangen, Germany.
| | - Maria Vaccarella
- Lecturer in Medical Humanities, Department of English, University of Bristol, 3/5 Woodland Road, Bristol, BS8 1TB, United Kingdom.
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Colangeli R, Pierucci M, Benigno A, Campiani G, Butini S, Di Giovanni G. The FAAH inhibitor URB597 suppresses hippocampal maximal dentate afterdischarges and restores seizure-induced impairment of short and long-term synaptic plasticity. Sci Rep 2017; 7:11152. [PMID: 28894217 PMCID: PMC5593993 DOI: 10.1038/s41598-017-11606-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 08/25/2017] [Indexed: 11/09/2022] Open
Abstract
Synthetic cannabinoids and phytocannabinoids have been shown to suppress seizures both in humans and experimental models of epilepsy. However, they generally have a detrimental effect on memory and memory-related processes. Here we compared the effect of the inhibition of the endocannabinoid (eCB) degradation versus synthetic CB agonist on limbic seizures induced by maximal dentate activation (MDA) acute kindling. Moreover, we investigated the dentate gyrus (DG) granule cell reactivity and synaptic plasticity in naïve and in MDA-kindled anaesthetised rats. We found that both the fatty acid amide hydrolase (FAAH) inhibitor URB597 and the synthetic cannabinoid agonist WIN55,212-2 displayed AM251-sensitive anti-seizure effects. WIN55,212-2, dose-dependently (0.5-2 mg/kg, i.p.) impaired short-term plasticity (STP) and long-term potentiation (LTP) at perforant path-DG synapses in naïve rats. Strikingly, URB597 (1 mg/kg, i.p.) was devoid of any deleterious effects in normal conditions, while it prevented seizure-induced alterations of both STP and LTP. Our evidence indicates that boosting the eCB tone rather than general CB1 activation might represent a potential strategy for the development of a new class of drugs for treatment of both seizures and comorbid memory impairments associated with epilepsy.
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Affiliation(s)
- Roberto Colangeli
- Laboratory of Neurophysiology, Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, Msida, Malta.
| | - Massimo Pierucci
- Laboratory of Neurophysiology, Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
| | - Arcangelo Benigno
- Department of Experimental Biomedicine and Clinical Neurosciences (BIONEC), Human Physiology Section, University of Palermo, Palermo, Italy
| | - Giuseppe Campiani
- European Research Centre for Drug Discovery and Development (NatSynDrugs) and Department of Biotechnology, Chemistry, and Pharmacy, Università degli Studi di Siena, Siena, Italy
| | - Stefania Butini
- European Research Centre for Drug Discovery and Development (NatSynDrugs) and Department of Biotechnology, Chemistry, and Pharmacy, Università degli Studi di Siena, Siena, Italy
| | - Giuseppe Di Giovanni
- Laboratory of Neurophysiology, Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, Msida, Malta. .,School of Biosciences, Cardiff University, Cardiff, UK.
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Zhao T, Gao Y, Zhu X, Wang N, Chen Y, Zhang J, He G, Feng Y, Xu J, Han X, Zhang J. Awareness, attitudes toward epilepsy, and first aid knowledge of seizures of hospital staff in Henan, China. Epilepsy Behav 2017; 74:144-148. [PMID: 28738284 DOI: 10.1016/j.yebeh.2017.06.026] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 06/19/2017] [Accepted: 06/20/2017] [Indexed: 12/15/2022]
Abstract
AIM The aim of this study was to evaluate awareness of, attitudes toward, and first aid knowledge of seizures of hospital staff in Henan, China. METHOD Two hundred nineteen hospital staff, including doctors, nurses, medical technicians, logisticians, and executives working at tertiary hospitals in Henan, China, completed the survey from March to September in 2016. The data comprised the demographic data section, awareness of epilepsy section, attitude toward epilepsy section, and first aid knowledge of seizure attack section. RESULTS The participants obtained a mean score of 7.48±1.705 on the awareness of epilepsy section, and a mean score of 5.32±1.165 on the first aid knowledge of seizure attacks section. There were significant correlations between educational level (r=0.187, P=0.006), occupation (r=-0.244, P=0.000), and attitudes toward patients with epilepsy (r=0.351, P=0.000) with the awareness of epilepsy. There were significant correlations between age (r=0.170, P=0.014), educational status (r=0.139, P=0.040), and professional titles (r=0.197, P=0.004) with the first aid knowledge of seizures. CONCLUSION The study showed that hospital staff had a moderate level of knowledge regarding epilepsy, and they generally displayed a positive attitude. It was also determined that as the awareness of epilepsy increased, they displayed more positive attitudes toward patients with epilepsy. The study also suggests that specialists working on epilepsy should provide more lectures and educational sessions to improve the knowledge of and attitude toward epilepsy and first aid knowledge of seizures among hospital staff.
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Affiliation(s)
- Ting Zhao
- Department of Neurology, Henan Provincial People's Hospital, People's Hospital, Henan University, Zhengzhou 450003, China
| | - Yajuan Gao
- Department of Clinical Medicine, Zhengzhou University, Zhengzhou 450000, China
| | - Xuerui Zhu
- Department of Neurology, Henan Provincial People's Hospital, People's Hospital, Henan University, Zhengzhou 450003, China
| | - Na Wang
- Department of Neurology, Henan Provincial People's Hospital, People's Hospital, Henan University, Zhengzhou 450003, China
| | - Yanan Chen
- Department of Neurology, Henan Provincial People's Hospital, People's Hospital, Henan University, Zhengzhou 450003, China
| | - Jiahui Zhang
- Department of Neurology, Henan Provincial People's Hospital, People's Hospital, Henan University, Zhengzhou 450003, China
| | - Guinv He
- Department of Neurology, Henan Provincial People's Hospital, People's Hospital, Henan University, Zhengzhou 450003, China
| | - Yan Feng
- Department of Neurology, Henan Provincial People's Hospital, People's Hospital, Henan University, Zhengzhou 450003, China
| | - Jun Xu
- Department of Neurology, Henan Provincial People's Hospital, People's Hospital, Henan University, Zhengzhou 450003, China
| | - Xiong Han
- Department of Neurology, Henan Provincial People's Hospital, People's Hospital, Henan University, Zhengzhou 450003, China.
| | - Jiewen Zhang
- Department of Neurology, Henan Provincial People's Hospital, People's Hospital, Henan University, Zhengzhou 450003, China
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225
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Killeen Z, Bunch R, Kerrigan JF. Psychiatric comorbidity with hypothalamic hamartoma: Systematic review for predictive clinical features. Epilepsy Behav 2017. [PMID: 28636978 DOI: 10.1016/j.yebeh.2017.05.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE We conducted a systematic review of the English-language literature to identify clinical features associated with a higher risk of psychiatric symptoms (aggression and rage behaviors) in patients with hypothalamic hamartoma (HH) and epilepsy. METHODS Two publicly-accessible databases (PubMed and Cochrane Library) were searched for Hypothalamic Hamartoma AND Epilepsy. We identified peer-reviewed original research publications (case reports or clinical series; N=19) in which clinical data was provided on an individual basis. Subjects were cohorted into those with (N=51) and without (N=68) behavioral aggression. Multiple clinical features were collated and subjected to univariate analysis to determine possible differences between these two cohorts. RESULTS The presence of aggression significantly correlated with 1) male gender, 2) younger age at time of first seizure onset, 3) the presence of intellectual disability, and 4) the presence of multiple seizure types (versus gelastic seizures only). For those patients undergoing surgical treatment, aggression also correlated with younger age at the time of surgical intervention. CONCLUSION Possible predictive clinical features for the presence of aggression and rage behaviors in patients with hypothalamic hamartoma and epilepsy are identified. These results may contribute to the complex treatment decisions that are unique to this population.
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Affiliation(s)
- Zachary Killeen
- University of Arizona College of Medicine, Phoenix, AZ, United States
| | - Raymond Bunch
- Division of Psychiatry and Hypothalamic Hamartoma Program, Barrow Neurological Institute at Phoenix Children's Hospital, Phoenix, AZ, United States
| | - John F Kerrigan
- Division of Pediatric Neurology and Hypothalamic Hamartoma Program, Barrow Neurological Institute at Phoenix Children's Hospital, Phoenix, AZ, United States.
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226
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Transcranial direct current stimulation for refractory major depressive disorder temporal lobe epilepsy: A quantitative electroencephalography study. Epilepsy Behav 2017; 72:205-207. [PMID: 28606691 DOI: 10.1016/j.yebeh.2017.04.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 04/04/2017] [Indexed: 11/22/2022]
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227
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Sharma RK, Singh T, Mishra A, Goel RK. Relative Safety of Different Antidepressants for Treatment of Depression in Chronic Epileptic Animals Associated with Depression. J Epilepsy Res 2017; 7:25-32. [PMID: 28775952 PMCID: PMC5540687 DOI: 10.14581/jer.17005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Accepted: 03/31/2017] [Indexed: 12/28/2022] Open
Abstract
Background and Purpose Depression is one of the major psychiatric comorbidities associated with epilepsy. The inconclusive results of antidepressants (ADs) regarding their safety in regard to convulsions have strongly contributed towards under treatment of depression in people with epilepsy (PWE). Thus, the present study was envisaged to assess the relative safety of four different classes of ADs regarding their convulsive potential in kindled/epileptic animals. Methods Kindling (an animal model to induce chronic epilepsy) was induced in male Swiss albino mice by administration of pentylenetetrazole subconvulsive doses (35 mg/kg, i.p.) at an interval of 48 ± 2 h for 42 days. The epileptic animals were treated with saline; imipramine (20 mg/kg/day i.p.); fluoxetine (20 mg/kg/day i.p.); venlafaxine (10 mg/kg/day i.p.) and mirtazapine (10 mg/kg/day i.p.) for 15 days. Except naive, animals were challenged with pentylenetetrazole subconvulsive dose (35 mg/kg, i.p.) on every 5th day to determine convulsion severity score, latency to first myoclonic jerk, latency to first tonic-clonic convulsions and numbers of tonic-clonic convulsions. Depression was also evaluated every 5th day employing tail suspension test 2 h after pentylenetetrazole subconvulsive dose. Results All ADs have been reported significant antidepressant potential however regarding their safety in regard to convulsions in epileptic animals, variable results are obtained. Chronic administration of venlafaxine and mirtazapine were found to have significant anticonvulsant effect in epileptic animals. The behavioral data was further corroborated by neurochemical findings. Conclusions The treatment with venlafaxine and mirtazapine can be considered safe for treatment of depression in epilepsy and may enhance anticonvulsant potential of antiepileptic drugs as an adjuvant therapy. However, pharmacokinetic studies are warranted before translating these findings in PWE.
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Affiliation(s)
- Rakesh Kumar Sharma
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, India
| | - Tanveer Singh
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, India
| | - Awanish Mishra
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, India
| | - Rajesh Kumar Goel
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, India
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Farrell JS, Colangeli R, Wolff MD, Wall AK, Phillips TJ, George A, Federico P, Teskey GC. Postictal hypoperfusion/hypoxia provides the foundation for a unified theory of seizure-induced brain abnormalities and behavioral dysfunction. Epilepsia 2017. [DOI: 10.1111/epi.13827] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jordan S. Farrell
- Hotchkiss Brain Institute; Cumming School of Medicine; University of Calgary; Calgary Alberta Canada
| | - Roberto Colangeli
- Hotchkiss Brain Institute; Cumming School of Medicine; University of Calgary; Calgary Alberta Canada
| | - Marshal D. Wolff
- Hotchkiss Brain Institute; Cumming School of Medicine; University of Calgary; Calgary Alberta Canada
| | - Alexandra K. Wall
- Hotchkiss Brain Institute; Cumming School of Medicine; University of Calgary; Calgary Alberta Canada
| | - Thomas J. Phillips
- Hotchkiss Brain Institute; Cumming School of Medicine; University of Calgary; Calgary Alberta Canada
| | - Antis George
- Hotchkiss Brain Institute; Cumming School of Medicine; University of Calgary; Calgary Alberta Canada
| | - Paolo Federico
- Hotchkiss Brain Institute; Cumming School of Medicine; University of Calgary; Calgary Alberta Canada
| | - G. Campbell Teskey
- Hotchkiss Brain Institute; Cumming School of Medicine; University of Calgary; Calgary Alberta Canada
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229
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Singh T, Kaur T, Goel RK. Ferulic Acid Supplementation for Management of Depression in Epilepsy. Neurochem Res 2017; 42:2940-2948. [DOI: 10.1007/s11064-017-2325-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 05/23/2017] [Accepted: 06/06/2017] [Indexed: 01/02/2023]
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Wortmannin Attenuates Seizure-Induced Hyperactive PI3K/Akt/mTOR Signaling, Impaired Memory, and Spine Dysmorphology in Rats. eNeuro 2017; 4:eN-NWR-0354-16. [PMID: 28612047 PMCID: PMC5467399 DOI: 10.1523/eneuro.0354-16.2017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 02/24/2017] [Accepted: 03/28/2017] [Indexed: 12/12/2022] Open
Abstract
Numerous studies have shown epilepsy-associated cognitive deficits, but less is known about the effects of one single generalized seizure. Recent studies demonstrate that a single, self-limited seizure can result in memory deficits and induces hyperactive phosphoinositide 3-kinase/Akt (protein kinase B)/mechanistic target of rapamycin (PI3K/Akt/mTOR) signaling. However, the effect of a single seizure on subcellular structures such as dendritic spines and the role of aberrant PI3K/Akt/mTOR signaling in these seizure-induced changes are unclear. Using the pentylenetetrazole (PTZ) model, we induced a single generalized seizure in rats and: (1) further characterized short- and long-term hippocampal and amygdala-dependent memory deficits, (2) evaluated whether there are changes in dendritic spines, and (3) determined whether inhibiting hyperactive PI3K/Akt/mTOR signaling rescued these alterations. Using the PI3K inhibitor wortmannin (Wort), we partially rescued short- and long-term memory deficits and altered spine morphology. These studies provide evidence that pathological PI3K/Akt/mTOR signaling plays a role in seizure-induced memory deficits as well as aberrant spine morphology.
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231
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Singh T, Bagga N, Kaur A, Kaur N, Gawande DY, Goel RK. Agmatine for combined treatment of epilepsy, depression and cognitive impairment in chronic epileptic animals. Biomed Pharmacother 2017; 92:720-725. [PMID: 28586743 DOI: 10.1016/j.biopha.2017.05.085] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 05/17/2017] [Accepted: 05/17/2017] [Indexed: 12/17/2022] Open
Abstract
Epilepsy is fourth most common neurological disorders associated with depression and cognitive deficits. As per present scenario, none of the antiseizure drugs have been reported successful to have ameliorative effect on epilepsy associated depression and cognitive deficits. Thus, the study was envisioned to assess an ameliorative potential of agmatine on epilepsy and its efficacy and safety for management of associated depression and cognitive deficits. The animals were made epileptic employing pentylenetetrazole (35mg/kg i.p. every 48±2h) kindling model of epilepsy and subsequently were treated with vehicle, valproic acid (300mg/kg/day i.p.) and agmatine (2.5, 5, and 10mg/kg)/day/i.p. for 15days. Except naïve, all the groups were challenged with same pentylenetetrazole dose as employed during kindling on days 5, 10, and 15 to evaluate seizure severity. Two hours after seizure severity test, tail suspension test and passive shock avoidance paradigm was employed to evaluate depression and cognitive behavior respectively. Results suggested that epileptic animals were significantly associated with depression and cognitive impairment. Chronic valproate treatment significantly reduced seizure severity, but was found unable to mitigate depression and cognitive deficits. However, agmatine treatment dose dependently ameliorated seizure severity as well as associated depression and cognitive deficits. On 15th day, animals were euthanized and pertinent neurochemical estimations were carried out in cortical and hippocampal areas of the mice brain. Thus, study concluded that agmatine ameliorated seizure severity, depression and cognitive impairment in epileptic animals, possibly via restoring glutamate-GABA neurotransmission and serotonin synthesis with decreased nitrosative stress.
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Affiliation(s)
- Tanveer Singh
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, 147002, India
| | - Neetu Bagga
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, 147002, India
| | - Anureet Kaur
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, 147002, India
| | - Navjot Kaur
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, 147002, India
| | - Dinesh Yugraj Gawande
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, 147002, India; Division of Neuroscience, Department of Pharmacology, Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra, India
| | - Rajesh Kumar Goel
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, 147002, India.
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232
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Ribot R, Ouyang B, Kanner AM. The impact of antidepressants on seizure frequency and depressive and anxiety disorders of patients with epilepsy: Is it worth investigating? Epilepsy Behav 2017; 70:5-9. [PMID: 28407526 DOI: 10.1016/j.yebeh.2017.02.032] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 02/20/2017] [Accepted: 02/20/2017] [Indexed: 11/20/2022]
Abstract
PURPOSE Depression and anxiety disorders in patients with epilepsy (PWE) remain under-recognized and under-treated, despite being the most common psychiatric co-morbidities. Selective serotonin re-uptake inhibitors (SSRIs) and serotonin-norepinephrine reuptake inhibitors (SNRIs) are considered first-line treatment for primary depression and anxiety disorders. We performed this study to investigate if SSRIs and SNRIs could affect the seizure frequency of PWE and to assess whether such effect is independent of the response of the mood and anxiety disorders to these drugs. METHODS This was a retrospective study of 100 consecutive PWE who were started on an SSRI or SNRI for the treatment of a depressive and/or anxiety disorder. Every patient underwent a psychiatric evaluation by one of the investigators using a semi-structured interview who also managed the pharmacologic treatment in all the patients. Patients were excluded if they had a diagnosis of psychogenic non-epileptic seizures or if they had undergone epilepsy surgery or the implant of the vagal nerve stimulator six months before and after the start of the antidepressant therapy. The final analysis was conducted in 84 patients. For each type of seizure, an average and maximal monthly seizure frequency during the six months preceding and following the start of psychotropic drugs was extracted from the medical records. We identified the number of patients whose seizure frequency during treatment with antidepressants: (i) shifted from a <1/month to a ≥1 seizure/month and vice-versa, (ii) increased beyond maximal/monthly baseline frequency, and (iii) patients who developed de-novo generalized tonic-clonic (GTC) seizures. RESULTS None of the patients with a baseline seizure frequency <1seizure/month went on to have ≥1seizure/month after initiating treatment with antidepressants, had an increase in frequency beyond baseline maximal counts or developed de-novo-GTC seizures. Furthermore, there was no seizure recurrence among patients that had been seizure-free. Among the patients with a baseline seizure frequency ≥1/month, 27.5% had a reduction in seizure frequency to <1/month, which suggested a positive effect of SSRI/SNRI on seizure frequency (p=0.001, McNemar test). Among the patients with a baseline seizure frequency ≥1seizure/month, 48% exhibited a >50% reduction in seizure frequency after the start of treatment with SSRIs or SNRIs. A therapeutic response to SSRIs and SNRIs was found in 73% of patients. The change in seizure frequency was independent of the improvement in psychiatric symptomatology. CONCLUSION In this retrospective observational study, SSRIs or SNRIs did not appear to worsen seizure frequency. Also, in patients with frequent seizures, SSRIs and SNRIs may be associated with a possible decrease in seizure frequency. Furthermore, these drugs appear to yield good therapeutic response of psychiatric symptoms independently of seizure frequency. It is pivotal to replicate these data in prospective, double-blind, placebo-controlled trials.
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Affiliation(s)
- Ramses Ribot
- Department of Neurology, Epilepsy Section and Comprehensive Epilepsy Center, University of Miami, Miller School of Medicine, Miami, FL, United States; Department of Neurological Sciences, Rush Medical College at Rush University, Rush University Medical Center, Chicago, IL, United States.
| | - Bichun Ouyang
- Department of Neurological Sciences, Rush Medical College at Rush University, Rush University Medical Center, Chicago, IL, United States
| | - Andres M Kanner
- Department of Neurology, Epilepsy Section and Comprehensive Epilepsy Center, University of Miami, Miller School of Medicine, Miami, FL, United States; Department of Neurological Sciences, Rush Medical College at Rush University, Rush University Medical Center, Chicago, IL, United States
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Kanner AM. Psychiatric comorbidities in new onset epilepsy: Should they be always investigated? Seizure 2017; 49:79-82. [PMID: 28532711 DOI: 10.1016/j.seizure.2017.04.007] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 04/13/2017] [Indexed: 11/19/2022] Open
Abstract
The new definition of epilepsy establishes that epilepsy is not only a disorder presenting with epileptic seizures but it can be often associated with cognitive and psychiatric comorbidities. In fact, the prevalence of psychiatric comorbidities is relatively high in patients with epilepsy (PWE), as one in three patients will have experienced a psychiatric disorder in the course of their life, with mood and anxiety disorders being the most frequent. Psychiatric comorbidities often precede the onset of the seizure disorder, and affect the life of these patients and the course of the seizure disorder at several levels, including a worse tolerance of pharmacotherapy with antiepileptic drugs (AEDs), in particular the development of iatrogenic psychiatric symptoms from pharmacologic and surgical treatments, an increased mortality risk, a worse quality of life and higher economic burdens of the patient, family and society as a hole. Accordingly, psychiatric comorbidities should be recognized at the time of the initial evaluation of every PWE and their treatment needs to be incorporated within the overall therapeutic plan. This question is addressed in this article.
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Affiliation(s)
- Andres M Kanner
- Department of Neurology, University of Miami, Miller School of Medicine, 1120 NW, 14th Street, Room #1324, Miami, FL 33136, United States.
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234
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Ketone Bodies as Anti-Seizure Agents. Neurochem Res 2017; 42:2011-2018. [PMID: 28397070 DOI: 10.1007/s11064-017-2253-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 03/26/2017] [Accepted: 03/29/2017] [Indexed: 12/12/2022]
Abstract
There is growing evidence that ketone bodies (KB)-derived from fatty acid oxidation and produced during fasting or consumption of high-fat diets-can exert broad neuroprotective effects. With respect to epilepsy, KB (such as β-hydroxybutyrate or BHB, acetoacetate and acetone) have been shown to block acutely induced and spontaneous recurrent seizures in various animal models. Although the mechanisms underlying the anti-seizure effects of KB have not been fully elucidated, recent experimental studies have invoked ketone-mediated effects on both inhibitory (e.g., GABAergic, purinergic and ATP-sensitive potassium channels) and excitatory (e.g., vesicular glutamate transporters) neurotransmission, as well as mitochondrial targets (e.g., respiratory chain and mitochondrial permeability transition). Moreover, BHB appears to exert both epigenetic (i.e., inhibition of histone deacetylases or HDACs) and anti-inflammatory (i.e., peripheral modulation of hydroxycarboxylic acid receptor and inhibition of the NOD-like receptor protein 3 or NRLP3 inflammasome) activity. While the latter two effects of BHB have yet to be directly linked to ictogenesis and/or epileptogenesis, parallel lines of evidence indicate that HDAC inhibition and a reduction in neuroinflammation alone or collectively can block seizure activity. Nevertheless, the notion that KB are themselves anti-seizure agents requires clinical validation, as prior studies have not revealed a clear correlation between blood ketone levels and seizure control. Notwithstanding this limitation, there is growing evidence that KB are more than just cellular fuels, and can exert profound biochemical, cellular and epigenetic changes favoring an overall attenuation in brain network excitability.
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Jiang YL, Yuan F, Yang F, Sun XL, Yang XA, Song L, Jiang W. Prognostic analysis for short - and long-term outcomes of newly diagnosed epilepsy. Seizure 2017; 47:92-98. [DOI: 10.1016/j.seizure.2017.02.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2017] [Revised: 02/15/2017] [Accepted: 02/16/2017] [Indexed: 11/28/2022] Open
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Genetic background contributes to the co-morbidity of anxiety and depression with audiogenic seizure propensity and responses to fluoxetine treatment. Epilepsy Behav 2017; 68:95-102. [PMID: 28135595 DOI: 10.1016/j.yebeh.2016.12.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 11/24/2016] [Accepted: 12/17/2016] [Indexed: 12/15/2022]
Abstract
BACKGROUND Anxiety and depression are the most frequent comorbidities of different types of convulsive and non-convulsive epilepsies. Increased anxiety and depression-like phenotype have been described in the genetic absence epilepsy models as well as in models of limbic epilepsy and acquired seizure models, suggesting a neurobiological connection. However, whether anxiety and/or depression are comorbid to audiogenic epilepsy remains unclear. The aim of this study was to investigate whether anxiety or depression-like behavior can be found in rat strains with different susceptibility to audiogenic seizures (AS) and whether chronic fluoxetine treatment affects this co-morbidity. METHODS Behavior in the elevated plus-maze and the forced swimming test was studied in four strains: Wistar rats non-susceptible to AS; Krushinsky-Molodkina (KM) strain, selectively bred for AS propensity from outbred Wistar rats; and a selection lines bred for maximal AS expression (strain "4") and for a lack of AS (strain "0") from KM×Wistar F2 hybrids. Effects of chronic antidepressant treatment on AS and behavior were also evaluated. RESULTS Anxiety and depression levels were higher in KM rats (with AS) compared with Wistar rats (without AS), indicating the comorbidity with AS. However, in strains "4" and "0" with contrasting AS expression, but with a genetic background close to KM rats, anxiety and depression were not as divergent as in KMs versus Wistars. Fluoxetine treatment exerted an antidepressant effect in all rat strains irrespective of its effect on AS. CONCLUSIONS Genetic background contributes substantively to the co-morbidity of anxiety and depression with AS propensity.
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Rao G, Mashkouri S, Aum D, Marcet P, Borlongan CV. Contemplating stem cell therapy for epilepsy-induced neuropsychiatric symptoms. Neuropsychiatr Dis Treat 2017; 13:585-596. [PMID: 28260906 PMCID: PMC5328607 DOI: 10.2147/ndt.s114786] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Epilepsy is a debilitating disease that impacts millions of people worldwide. While unprovoked seizures characterize its cardinal symptom, an important aspect of epilepsy that remains to be addressed is the neuropsychiatric component. It has been documented for millennia in paintings and literature that those with epilepsy can suffer from bouts of aggression, depression, and other psychiatric ailments. Current treatments for epilepsy include the use of antiepileptic drugs and surgical resection. Antiepileptic drugs reduce the overall firing of the brain to mitigate the rate of seizure occurrence. Surgery aims to remove a portion of the brain that is suspected to be the source of aberrant firing that leads to seizures. Both options treat the seizure-generating neurological aspect of epilepsy, but fail to directly address the neuropsychiatric components. A promising new treatment for epilepsy is the use of stem cells to treat both the biological and psychiatric components. Stem cell therapy has been shown efficacious in treating experimental models of neurological disorders, including Parkinson's disease, and neuropsychiatric diseases, such as depression. Additional research is necessary to see if stem cells can treat both neurological and neuropsychiatric aspects of epilepsy. Currently, there is no animal model that recapitulates all the clinical hallmarks of epilepsy. This could be due to difficulty in characterizing the neuropsychiatric component of the disease. In advancing stem cell therapy for treating epilepsy, experimental testing of the safety and efficacy of allogeneic and autologous transplantation will require the optimization of cell dosage, delivery, and timing of transplantation in a clinically relevant model of epilepsy with both neurological and neuropsychiatric symptoms of the disease as the primary outcome measures.
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Affiliation(s)
- Gautam Rao
- Department of Neurosurgery and Brain Repair, Center of Excellence for Aging and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Sherwin Mashkouri
- Department of Neurosurgery and Brain Repair, Center of Excellence for Aging and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - David Aum
- Department of Neurosurgery and Brain Repair, Center of Excellence for Aging and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Paul Marcet
- Department of Neurosurgery and Brain Repair, Center of Excellence for Aging and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Cesar V Borlongan
- Department of Neurosurgery and Brain Repair, Center of Excellence for Aging and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
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Al-Nimer MS, Al-Mahdawi SA, Abdullah NM, Al-Mahdawi A. Epileptic Patients are at Risk of Cardiac Arrhythmias: A Novel Approach using QT-nomogram, Tachogram, and Cardiac Restitution Plots. J Neurosci Rural Pract 2017; 8:7-13. [PMID: 28149075 PMCID: PMC5225727 DOI: 10.4103/0976-3147.193553] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Sudden death is reported in patients who had a history of epilepsy and some authors believed that is due to cardiac arrhythmias. OBJECTIVES This study aimed to predict that the epileptic patients are at risk of serious cardiac arrhythmias by QT-nomogram, tachogram (Lorenz), and cardiac restitution plots. METHODS A total number of 71 healthy subjects (Group I) and 64 newly diagnosed epileptic patients (Group II) were recruited from Al-Yarmouk and Baghdad Teaching hospitals in Baghdad from March 2015 to July 2015 and included in this study. The diagnosis of epilepsy achieved clinically, electroencephalograph record and radio-images including computerized tomography and magnetic image resonance. At the time of entry into the study, an electrocardiography (ECG) was done, and the determinants of each ECG record were calculated. The QT-nomogram, tachogram, and cardiac restitution plots were used to identify the patients at risk of cardiac arrhythmias. RESULTS Significant prolonged corrected QT corrected (QTc) and JT corrected intervals were observed in female compared with male at age ≥50 years while the TQ interval was significantly prolonged in males of Group II. Eight patients of Group II had a significant pathological prolonged QTc interval compared with undetectable finding in Group I. QT nomogram did not disclose significant findings while the plots of Lorenz and restitution steepness disclose that the patients of Group II were vulnerable to cardiac arrhythmias. Abnormal ECG findings were observed in the age extremities (≤18 years and ≥50 years) in Group II compared with Group I. CONCLUSION Utilization of QT-nomogram, restitution steepness, and tachogram plots is useful tools for detection subclinical vulnerable epileptic patient with cardiac arrhythmias.
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Affiliation(s)
- Marwan S Al-Nimer
- Department of Pharmacology, College of Medicine, Al-Mustansiriya University, Baghdad, Iraq; Department of Pharmacology, College of Pharmacy, Hawler Medical University, Erbil, Iraq
| | - Sura A Al-Mahdawi
- Department of Pharmacology, College of Medicine, Al-Mustansiriya University, Baghdad, Iraq
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Kanner AM. Association Between Selective Serotonin-Reuptake Inhibitor Antidepressants and Increased Risk of Poststroke Epilepsy. Mayo Clin Proc 2017; 92:179-181. [PMID: 28160869 DOI: 10.1016/j.mayocp.2016.12.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 12/20/2016] [Indexed: 01/15/2023]
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Carrette S, Boon P, Vonck K. A prestimulation evaluation protocol for patients with drug resistant epilepsy. Seizure 2017; 44:137-142. [DOI: 10.1016/j.seizure.2016.10.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 10/16/2016] [Indexed: 12/29/2022] Open
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Singh T, Goel RK. Managing epilepsy-associated depression: Serotonin enhancers or serotonin producers? Epilepsy Behav 2017; 66:93-99. [PMID: 28038393 DOI: 10.1016/j.yebeh.2016.10.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Revised: 10/06/2016] [Accepted: 10/08/2016] [Indexed: 12/31/2022]
Abstract
Depression is one of the major psychiatric comorbidities having a major impact on the quality of life in people with epilepsy (PWE). Selective serotonin reuptake inhibitors (SSRIs) are considered as safest therapy for the treatment of depression in PWE. Although administration of SSRIs increases the synaptic serotonin levels, it decreases the overall serotonin synthesis in the brain. Long-term therapy with SSRIs has been reported to decrease serotonin synthesis, which may be the possible reason for lessening of their antidepressant effect over time as well as elevated seizure outcomes observed in PWE. Thus the present scenario warrants streamlined studies to explore the safety and efficacy of SSRIs as well as approaches beyond SSRIs for treatment of depression in epilepsy. In this review, we outline the approaches which may restore serotonin levels rather than a pseudo enhancement of serotonin with SSRIs. The potential of various anti-inflammatory approaches such as selective cyclooxygenase-2 inhibitors, inflammatory cytokine inhibitors, and indoleamine 2,3-dioxygenase inhibitors pertaining to their serotonin restoring effects is discussed as possible therapy for treatment of depression in epilepsy.
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Affiliation(s)
- Tanveer Singh
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, India
| | - Rajesh Kumar Goel
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, India.
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Galanin contributes to monoaminergic dysfunction and to dependent neurobehavioral comorbidities of epilepsy. Exp Neurol 2016; 289:64-72. [PMID: 28013000 DOI: 10.1016/j.expneurol.2016.12.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 11/23/2016] [Accepted: 12/20/2016] [Indexed: 01/01/2023]
Abstract
Status epilepticus (SE) in rats, along with chronic epilepsy, leads to the development of behavioral impairments resembling depressive disorder and/or attention deficit/hyperactivity disorder (ADHD), thus reflecting respective comorbidities in epilepsy patients. Suppressed neurotransmitter tone in the raphe nucleus (RN)-prefrontal cortex (PFC) serotonergic pathway and in the locus coeruleus (LC)-PFC noradrenergic pathway underlies depressive- and impulsive-like behavioral deficits respectively. We examined possible mechanisms leading to the monoamine dysfunction in brainstem efferents, namely modulatory effects of the neuropeptide galanin on serotonin (5-HT) and norepinephrine (NE) signaling. SE was induced in young adult male Wistar rats by LiCl and pilocarpine. Epileptic rats were categorized vis-à-vis behavioral deficits as not impaired, "depressed" and "impulsive". Depressive- and impulsive-like behaviors were examined in the forced swimming test (FST). The strength of serotonergic transmission in RN-PFC and of noradrenergic transmission in LC-PFC was analyzed using in vivo fast scan cyclic voltammetry. Galanin receptor type 1 (GalR1)/type 2 (GalR2) antagonist M40, and a preferential GalR2 antagonist M871 were administered over 3days locally into either RN or LC by means of ALZET osmotic minipumps connected to locally implanted infusion cannulas. Intra-RN injection of M40 improved serotonergic tone and depressive-like behavior in epileptic "depressed" rats. Intra-LC injection of M40 improved noradrenergic tone and impulsive-like behavior in epileptic "impulsive" rats. The effects of M40 were only observed in impaired subjects. The treatment did not modify neurotransmission and behavior in naïve and epileptic not impaired rats; in "depressed" rats the effects were limited to serotonergic transmission and immobility, while in "impulsive" rats - to noradrenergic transmission and struggling behavior. Intra-RN administration of M871 exacerbated depressive-like behavior, but had no effects on any other of the examined parameters in any category of animals. These findings suggest that endogenous galanin, acting through GalR1 may be involved in the pathophysiology of epilepsy-associated depression and ADHD via inhibiting RN-PFC serotonergic and LC-PFC noradrenergic transmissions respectively.
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Rapidly progressive cognitive impairment with neuropsychiatric symptoms as the initial manifestation of status epilepticus. EPILEPSY & BEHAVIOR CASE REPORTS 2016; 7:20-23. [PMID: 28217440 PMCID: PMC5302136 DOI: 10.1016/j.ebcr.2016.11.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 11/06/2016] [Indexed: 11/25/2022]
Abstract
The purpose of this article is to describe the clinical and electroencephalographic features of patients diagnosed with non-convulsive status epilepticus (NCSE) with uncommon cognitive and behavioral involvement. We present two cases with sub-acute cognitive impairment and neuropsychiatric disorders (including anxiety and transient behavioral changes) as their first manifestation of NCSE. A neuropsychological profile demonstrated executive dysfunction. In addition, the neurological examination revealed automatisms and 24-hour video EEG showed epileptiform activity. Although neuroimaging studies showed frontotemporal abnormalities, both neurophysiological and cognitive improvement after specific antiseizure drug treatment confirmed the diagnosis of non-convulsive status. Theoretical considerations between mental status changes and focal epilepsy will be reviewed. Our cases raise awareness of the importance of considering NCSE, a treatable condition, in the differential diagnosis of rapidly-progressive cognitive impairment with neuropsychiatric symptoms.
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Diagnosing and treating depression in epilepsy. Seizure 2016; 44:184-193. [PMID: 27836391 DOI: 10.1016/j.seizure.2016.10.018] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 10/17/2016] [Accepted: 10/20/2016] [Indexed: 01/24/2023] Open
Abstract
At least one third of patients with active epilepsy suffer from significant impairment of their emotional well-being. A targeted examination for possible depression (irrespective of any social, financial or personal burdens) can identify patients who may benefit from medical attention and therapeutic support. Reliable screening instruments such as the Neurological Disorders Depression Inventory for Epilepsy (NDDI-E) are suitable for the timely identification of patients needing help. Neurologists should be capable of managing mild to moderate comorbid depression but referral to mental health specialists is mandatory in severe and difficult-to-treat depression, or if the patient is acutely suicidal. In terms of the therapeutic approach, it is essential first to optimize seizure control and minimize unwanted antiepileptic drug-related side effects. Psychotherapy for depression in epilepsy (including online self-treatment programs) is underutilized although it has proven effective in ten well-controlled trials. In contrast, the effectiveness of antidepressant drugs for depression in epilepsy is unknown. However, if modern antidepressants are used (e.g. SSRI, SNRI, NaSSA), concerns about an aggravation of seizures and or problematic interactions with antiepileptic drugs seem unwarranted. Epilepsy-related stress ("burden of epilepsy") explains depression in many patients but acute and temporary seizure-related states of depression or suicidality have also been reported. Limbic encephalitits may cause isolated mood alteration without any recognizable psychoetiological background indicating a possible role of neuroinflammation. This review will argue that, overall, a bio-psycho-social model best captures the currently available evidence relating to the etiology and treatment of depression as a comorbidity of epilepsy.
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Singh T, Goel RK. Adjuvant neuronal nitric oxide synthase inhibition for combined treatment of epilepsy and comorbid depression. Pharmacol Rep 2016; 69:143-149. [PMID: 27923157 DOI: 10.1016/j.pharep.2016.10.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 09/30/2016] [Accepted: 10/03/2016] [Indexed: 01/01/2023]
Abstract
BACKGROUND Elevated nitric oxide (NO) levels in the brain have been apparently associated with depression in kindled animals. Owing to the major role of neuronal nitric oxide synthase (nNOS) in brain and ineffectiveness of antiepileptic drugs (AEDs) in restoring nitrosative stress, the present study was envisaged to evaluate the adjuvant nNOS inhibitor, 7-nitroindazole (7-NI) with valproic acid for combined treatment of epilepsy and associated depression. METHODS Pentylenetetrazole kindled animals associated with depression were treated with vehicle, valproate (300mg/kg/day ip), valproate with 7-NI (10mg/kg; 20mg/kg; 40mg/kg)/day ip and 7-NI (40mg/kg/day ip) for 15days. Except naïve, all groups were challenged with pentylenetetrazole (35mg/kg ip) on days 5, 10, and 15 to evaluate seizure severity. Depression was evaluated in all experimental groups using the tail suspension and forced swim test on days 1, 5, 10 and 15. On day 15, biochemical (corticosterone levels) and neurochemical (serotonin, kynurenine, tryptophan, glutamate, GABA, nitrite levels) estimations were carried out in cortical and hippocampal area of mice brain. RESULTS Vehicle treated kindled animals were significantly associated with depression. Chronic valproate treatment in kindled animals significantly reduced seizure severity, but could not reverse associated depression. 7-NI per se treatment in kindled animals was also reported unable to restore the associated depression completely. However, 7-NI supplementation with valproate significantly reduced seizure severity score and completely ameliorated depression with restoration of altered biochemical and neurochemical milieu. CONCLUSION Adjuvant nNOS inhibition can be previewed as safe therapy with AEDs for the combined management of epilepsy and associated depression.
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Affiliation(s)
- Tanveer Singh
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala 147002, Punjab, India
| | - Rajesh Kumar Goel
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala 147002, Punjab, India.
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PatientsLikeMe® Online Epilepsy Community: Patient characteristics and predictors of poor health-related quality of life. Epilepsy Behav 2016; 63:20-28. [PMID: 27544877 DOI: 10.1016/j.yebeh.2016.07.035] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 07/06/2016] [Accepted: 07/24/2016] [Indexed: 01/08/2023]
Abstract
OBJECTIVE The online PatientsLikeMe® Epilepsy Community allows patients with epilepsy to record, monitor, and share their demographic, disease, and treatment characteristics, providing valuable insights into patient perceptions and understanding of epilepsy. The objective of this retrospective analysis was to characterize the profile of users and their disease and identify factors predictive of poor health-related quality of life (HRQoL), while assessing the platform's potential in providing patient-reported data for research purposes. METHODS Data recorded (January 2010-November 2011) by Epilepsy Community members, with an epilepsy diagnosis and who reported >1 seizure, included the following: sociodemographic and disease characteristics, treatments, symptoms, side effects perceived as medication-related, seizure occurrence, and standardized questionnaires (Quality of Life in Epilepsy Inventory [QOLIE-31/P], EuroQoL 5-Dimensions Scale, 3 Levels [EQ-5D-3L], and Hospital Anxiety and Depression Scale [HADS]). Univariate and multivariate logistic regressions were conducted to identify predictors of poor HRQoL. RESULTS During the study period, the Epilepsy Community comprised 3073 patients, of whom 71.5% were female, had a mean age of 37.8years, and had a mean epilepsy duration of 17.7years. The most frequently reported moderate/severe symptoms (n=2135) included memory problems (60.2%), problems concentrating (53.8%), and fatigue (50.0%). Medication-related side effects (n=639) included somnolence (23.2%), fatigue (17.2%), and memory impairment (13.8%). The QOLIE-31/P scores (n=1121) were significantly worse in patients who experienced a recent seizure. For QOLIE-31/P, highly predictive factors for poor HRQoL included the following: mild/moderate problems concentrating, depression, memory problems, treatment side effects, occurrence of tonic-clonic seizures, and epilepsy duration ≤1year. For EQ-5D-3L, highly predictive factors for poor HRQoL included the following: pain, depression, and comorbidities. Patients on newer AEDs were less likely to report poor HRQoL (QOLIE-31/P). SIGNIFICANCE These findings move further towards supporting the feasibility and usefulness of collecting real-world, anonymized data recorded by patients online. The data provide insights into factors impacting HRQoL, suggesting that a holistic treatment approach beyond seizure control should be considered in epilepsy.
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Dokkedal V, Scorza FA, Galduroz JCF, Tufik S, Andersen ML. Epilepsy comorbidities: Is clonazepam a friend or a foe? Epilepsy Behav 2016; 62:309-10. [PMID: 27497703 DOI: 10.1016/j.yebeh.2016.06.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 06/22/2016] [Indexed: 11/19/2022]
Affiliation(s)
- Vinícius Dokkedal
- Departamento de Psicobiologia, Escola Paulista de Medicina/Universidade Federal de São Paulo (EPM/UNIFESP), São Paulo, Brazil
| | - Fulvio A Scorza
- Disciplina de Neurociência, Departamento de Neurologia/Neurocirurgia, Escola Paulista de Medicina/Universidade Federal de São Paulo (EPM/UNIFESP), São Paulo, Brazil
| | - José Carlos F Galduroz
- Departamento de Psicobiologia, Escola Paulista de Medicina/Universidade Federal de São Paulo (EPM/UNIFESP), São Paulo, Brazil
| | - Sérgio Tufik
- Departamento de Psicobiologia, Escola Paulista de Medicina/Universidade Federal de São Paulo (EPM/UNIFESP), São Paulo, Brazil
| | - Monica L Andersen
- Departamento de Psicobiologia, Escola Paulista de Medicina/Universidade Federal de São Paulo (EPM/UNIFESP), São Paulo, Brazil.
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Terrone G, Pauletti A, Pascente R, Vezzani A. Preventing epileptogenesis: A realistic goal? Pharmacol Res 2016; 110:96-100. [DOI: 10.1016/j.phrs.2016.05.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 05/02/2016] [Accepted: 05/05/2016] [Indexed: 12/16/2022]
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Evidence in support of using a neurochemistry approach to identify therapy for both epilepsy and associated depression. Epilepsy Behav 2016; 61:248-257. [PMID: 27423076 DOI: 10.1016/j.yebeh.2016.05.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 05/04/2016] [Accepted: 05/04/2016] [Indexed: 12/19/2022]
Abstract
The present study aimed to develop a neurochemistry-based single or adjuvant therapy approach for comprehensive management of epilepsy and associated depression employing pentylenetetrazole-kindled animals. Kindling was induced in two-month-old male Swiss albino mice by administering a subconvulsant pentylenetetrazole dose (35mg/kg, i.p.) at an interval of 48±2h. These kindled animals were treated with saline and sodium valproate (300mg/kg/day, i.p.) for 15days. Except for the naïve group, all other groups were challenged with pentylenetetrazole (35mg/kg, i.p.) on days 5, 10, and 15 to evaluate the seizure severity. Depression was evaluated in all experimental groups after normalization of locomotor activity, using tail suspension and forced swim test on days 1, 5, 10, and 15. Four hours after behavioral evaluations on day 15, all animals were euthanized to collect their serum and discrete brain parts. Corticosterone levels were estimated in all the experimental groups as a marker of a dysregulated hypothalamus pituitary adrenal axis. Neurochemical alterations (norepinephrine, dopamine, tryptophan, kynurenine, serotonin, glutamate, GABA, and total nitrate levels) were also estimated in the cortical and hippocampal areas of the mouse brain. Results revealed that saline-treated kindled animals were associated with significant depression and altered neurochemical milieu in comparison with naïve animals. Chronic valproate treatment in kindled animals significantly reduced seizure severity score bud did not ameliorate associated depression or completely restore altered biochemical and neurochemical milieu. Based on the observation of neurochemical changes in all the groups, we propose that restoration of altered neurochemical milieu, elevated indoleamine 2,3-dioxygenase enzyme activity, and corticosterone levels using pharmacological tools with/out valproic acid may be explored for management of both epilepsy and comorbid depression.
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Christian CA. A Nose for Seizures: A Potential Role for Olfaction in the Co-Morbidity of Depression and Epilepsy? Epilepsy Curr 2016; 16:256-7. [PMID: 27582667 PMCID: PMC4988077 DOI: 10.5698/1535-7511-16.4.256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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