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Ghosh A, Quinlan S, Forcelli PA. Anti-seizure medication-induced developmental cell death in neonatal rats is unaltered by history of hypoxia. Epilepsy Res 2024; 201:107318. [PMID: 38430668 PMCID: PMC11018699 DOI: 10.1016/j.eplepsyres.2024.107318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/15/2024] [Accepted: 02/01/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND Many anti-seizure medications (ASMs) trigger neuronal cell death when administered during a confined period of early life in rodents. Prototypical ASMs used to treat early-life seizures such as phenobarbital induce this effect, whereas levetiracetam does not. However, most prior studies have examined the effect of ASMs in naïve animals, and the degree to which underlying brain injury interacts with these drugs to modify cell death is poorly studied. Moreover, the degree to which drug-induced neuronal cell death differs as a function of sex is unknown. METHODS We treated postnatal day 7 Sprague Dawley rat pups with vehicle, phenobarbital (75 mg/kg) or levetiracetam (200 mg/kg). Separate groups of pups were pre-exposed to either normoxia or graded global hypoxia. Separate groups of males and females were used. Twenty-four hours after drug treatment, brains were collected and processed for markers of cell death. RESULTS Consistent with prior studies, phenobarbital, but not levetiracetam, increased cell death in cortical regions, basal ganglia, hippocampus, septum, and lateral thalamus. Hypoxia did not modify basal levels of cell death. Females - collapsed across treatment and hypoxia status, displayed a small but significant increase in cell death as compared to males in the cingulate cortex, somatosensory cortex, and the CA1 and CA3 hippocampus; these effects were not modulated by hypoxia or drug treatment. CONCLUSION We found that a history of graded global hypoxia does not alter the neurotoxic profile of phenobarbital. Levetiracetam, which does not induce cell death in normal developing animals, maintained a benign profile on the background of neonatal hypoxia. We found a sex-based difference, as female animals showed elevated levels of cell death across all treatment conditions. Together, these data address several long-standing gaps in our understanding of the neurotoxic profile of antiseizure medications during early postnatal development.
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Affiliation(s)
- Anjik Ghosh
- Department of Pharmacology & Physiology, Georgetown University, Washington, DC, USA
| | - Sean Quinlan
- Department of Pharmacology & Physiology, Georgetown University, Washington, DC, USA
| | - Patrick A Forcelli
- Department of Pharmacology & Physiology, Georgetown University, Washington, DC, USA; Department of Neuroscience, Georgetown University, Washington, DC, USA; Interdisciplinary Program in Neuroscience, Georgetown University, Washington, DC, USA.
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Ren T, Lee PMY, Li F, Li J. Prenatal Carbamazepine Exposure and Academic Performance in Adolescents: A Population-Based Cohort Study. Neurology 2023; 100:e728-e738. [PMID: 36323520 PMCID: PMC9969917 DOI: 10.1212/wnl.0000000000201529] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 09/21/2022] [Indexed: 02/15/2023] Open
Abstract
BACKGROUND AND OBJECTIVES To investigate whether children born to mothers who used carbamazepine during pregnancy had worse academic performance in adolescence. METHODS This population-based cohort study included all live-born singletons in Denmark between 1996 and 2002 who participated in the national ninth-grade exit examination (n = 370,859). Those born to mothers with prescription of antiseizure medications other than carbamazepine during pregnancy were excluded. We examined the association of in utero exposure to maternal carbamazepine redeemed during pregnancy (n = 290) with academic performance of offspring, defined by the scores in Danish and mathematics in ninth-grade exit examination. We estimated mean z-score difference with linear regression adjusted for socioeconomic factors and potential indications, including epilepsy and medication for other psychiatric disorders. Additional analyses addressing confounding by indication included comparison between in utero exposed vs past exposed and between past exposed and never exposed. In utero exposure to valproate monotherapy was used as a positive control and in utero exposure to lamotrigine as a negative control. RESULTS At the age of 16.1 (SD 0.4) years, adolescents in utero exposed to maternal carbamazepine monotherapy had lower scores both in Danish and mathematics in ninth-grade exit examination (adjusted z-score difference, -0.14 [95% CI -0.24 to -0.05] and -0.17 [95% CI -0.28 to -0.07], respectively). In utero exposure to carbamazepine monotherapy was associated with lower scores than past exposure only (adjusted z-score difference, -0.24 [95% CI -0.41 to -0.06] for Danish and -0.25 [95% CI -0.44 to -0.06] for mathematics), while past exposure to carbamazepine was associated with minor decrease in offspring's academic performance (adjusted z-score difference, -0.02 [95% CI -0.09 to 0.06] for Danish and -0.07 [95% CI -0.16 to 0.01] for mathematics). The association was also observed for in utero exposure to valproate monotherapy, but not for in utero exposure to lamotrigine. DISCUSSION In utero exposure to carbamazepine was associated with poorer academic performance in adolescence, as represented by lower scores in ninth-grade exit examination in Danish and mathematics. Additional studies are needed to confirm these findings because of limitations in this study and variable findings in prior studies. CLASSIFICATION OF EVIDENCE This study provides Class III evidence that academic performance, as reflected in ninth-grade exit examinations in Danish and mathematics, was worse among those exposed to carbamazepine monotherapy in utero, compared with those without in utero exposure to antiseizure medications.
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Affiliation(s)
| | | | - Fei Li
- From the Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health (T.R., F.L.), Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, China; Department of Clinical Medicine-Department of Clinical Epidemiology (P.M.Y.L., J.L.), Aarhus University and Aarhus University Hospital, Denmark; and Department of Developmental and Behavioural Paediatric & Child Primary Care (F.L.), Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, China.
| | - Jiong Li
- From the Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health (T.R., F.L.), Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, China; Department of Clinical Medicine-Department of Clinical Epidemiology (P.M.Y.L., J.L.), Aarhus University and Aarhus University Hospital, Denmark; and Department of Developmental and Behavioural Paediatric & Child Primary Care (F.L.), Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, China.
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Hophing L, Kyriakopoulos P, Bui E. Sex and gender differences in epilepsy. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2022; 164:235-276. [PMID: 36038205 DOI: 10.1016/bs.irn.2022.06.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Sex and gender differences in epilepsy are important influencing factors in epilepsy care. In epilepsy, the hormonal differences between the sexes are important as they impact specific treatment considerations for patients at various life stages particularly during early adulthood with establishment of the menstrual cycle, pregnancy, perimenopause and menopause. Choice of antiseizure medication may have direct consequences on hormonal cycles, hormonal contraception, pregnancy and fetal risk of major congenital malformation. Conversely hormones whether intrinsic or extrinsically administered may have direct impact on antiseizure medications and seizure control. This chapter explores these important influences on the management of persons with epilepsy.
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Affiliation(s)
- Lauren Hophing
- Krembil Brain Institute, University Health Network, University of Toronto, Toronto, Canada
| | | | - Esther Bui
- Krembil Brain Institute, University Health Network, University of Toronto, Toronto, Canada.
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Alpay M, Yucel F. Changes of Cerebellar Cortex in a Valproic Acid-Induced Rat Model of Autism. Int J Dev Neurosci 2022; 82:606-614. [PMID: 35831992 DOI: 10.1002/jdn.10213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/30/2022] [Accepted: 07/02/2022] [Indexed: 11/10/2022] Open
Abstract
In this study, 32 male Sprague-Dawley rats (8 for each group) were used in total to examine the effects of valproic acid on rat cerebellum. It was determined that the experimental group received valproic acid (600mg/kg) on embryonic day 15 and postnatal day 11, whereas the control group was treated with saline on the same days. Moreover, on the postnatal 30th day, the cerebellums of all pups were removed and prepared for light and electron microscopy. The numerical density of granule cells in the cerebellum of experimental groups of rats increased whereas the numerical density of Purkinje cells decreased. Furthermore, the granule cells had a smaller mean nuclear diameter in one of the experimental groups while the Purkinje cells had in both experimental groups than those in the comparison group. Thus, the numerical density of synaptic discs and their mean diameter in the cerebellar granular layer of experimental groups were significantly decreased compared to the corresponding controls; also, the synapse-to-neurons ratio, a parameter indicating interneural connectivity, was the same. Consequently, it was seen that valproic acid administration to pups in prenatal or early postnatal days causes changes in number of neurons and synapses in the cerebellum of rats.
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Affiliation(s)
- Meltem Alpay
- Department of Anatomy, Faculty of Medicine, Tekirdag Namik Kemal University, Tekirdag, Turkey
| | - Ferruh Yucel
- Department of Anatomy, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
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Kacirova I, Grundmann M, Brozmanova H. Monitoring of lamotrigine concentrations in mothers, colostrum, and breastfed newborns during the early postpartum period. Biomed Pharmacother 2022; 151:113167. [PMID: 35617804 DOI: 10.1016/j.biopha.2022.113167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/12/2022] [Accepted: 05/17/2022] [Indexed: 11/02/2022] Open
Abstract
OBJECTIVE To analyse the concentrations of lamotrigine in maternal serum, colostrum, and serum of breastfed newborns, and to evaluate the effect of comedication with enzyme-inducing antiseizure medication and valproic acid. METHODS This cohort study collected data from 158 women and 143 breastfed newborns. Maternal serum, milk (i.e., colostrum), and newborn serum samples were collected between the 2nd and 5th postnatal days, and lamotrigine concentrations were measured by high-performance liquid chromatography. RESULTS The median lamotrigine concentrations were 2.7 mg/L in maternal serum, 1.4 mg/L in milk, and 1.7 mg/L in newborn serum. The median milk/maternal serum concentration ratio was 0.60, the median newborn/maternal serum concentration ratio was also 0.60, and the median newborn serum/milk concentration ratio was 1.00. A significant correlation was observed between milk and maternal serum concentrations and between newborn serum and milk concentrations, maternal serum concentrations, maternal daily dose, and dose related to maternal body weight. CONCLUSIONS Exposure to lamotrigine in breastfed newborns is lower than exposure during pregnancy. However, by the same dose by the same mother, lamotrigine concentrations in both maternal serum and milk increase significantly after delivery. This finding, together with the immature function of eliminating enzymes in newborns, may be the reason for reaching concentrations in the reference range used for the general epileptic population in breastfed newborns. Therapeutic monitoring of breastfed newborns serum concentrations of lamotrigine is not mandatory; however, if signs of possible adverse events are noted, newborn serum concentrations should be analysed.
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Affiliation(s)
- Ivana Kacirova
- Department of Clinical Pharmacology, Faculty of Medicine, University of Ostrava, Syllabova 19, 703 00 Ostrava, Czech Republic; Department of Clinical Pharmacology, Institute of Laboratory Medicine, University Hospital Ostrava, 17. listopadu 1790, 700 30 Ostrava, Czech Republic
| | - Milan Grundmann
- Department of Clinical Pharmacology, Faculty of Medicine, University of Ostrava, Syllabova 19, 703 00 Ostrava, Czech Republic; Department of Clinical Pharmacology, Institute of Laboratory Medicine, University Hospital Ostrava, 17. listopadu 1790, 700 30 Ostrava, Czech Republic.
| | - Hana Brozmanova
- Department of Clinical Pharmacology, Faculty of Medicine, University of Ostrava, Syllabova 19, 703 00 Ostrava, Czech Republic; Department of Clinical Pharmacology, Institute of Laboratory Medicine, University Hospital Ostrava, 17. listopadu 1790, 700 30 Ostrava, Czech Republic
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Adams J, Janulewicz PA, Macklin EA, Dhillon R, Phillips C, Schomer DL, Tosches WA, Carlson JM, Holmes LB. Neuropsychological effects in children exposed to anticonvulsant monotherapy during gestation: Phenobarbital, carbamazepine, and phenytoin. Epilepsy Behav 2022; 127:108533. [PMID: 35042158 DOI: 10.1016/j.yebeh.2021.108533] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 12/27/2021] [Accepted: 12/27/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Usage during pregnancy of the antiseizure medication (ASM), phenobarbital (PB), carbamazepine (CBZ), and phenytoin (PHT), has been associated with adverse pregnancy outcomes. While morphological effects on offspring are well-documented, inconsistent findings have been reported on neuropsychological development, possibly due to differences in attention to maternal demographics, and other design characteristics. Herein, we report the results of a carefully designed protocol used to examine the effects of gestational monotherapy with PB, CBZ, or PHT upon children's general mental abilities, when compared to age- and gender- matched children born to unexposed women of similar age, education, and socioeconomic status. METHODS For each ASM, we selected qualifying cases from children born to PB, CBZ, or PHT monotherapy-exposed and unexposed women. Following the application of inclusion, exclusion, and matching criteria, our sample included 34 PB-exposed, 40 PHT-exposed, and 41 CBZ-exposed children along with matched unexposed children for each drug group. Criteria were applied through examination of maternal medical and educational histories, parental socioeconomic characteristics, and child's age and gender. Each child's physical and neuropsychological characteristics were examined, using standardized protocols. We report on the cognitive performance of the children as assessed by the Wechsler Intelligence Scale for Children - III (WISC-III), the leading measure of mental ability in the U.S. RESULTS An overall mixed model ANOVA of the adjusted performance of the children across all groups controlling for maternal IQ revealed significant effects on verbal IQ, but not full-scale IQ or performance IQ. In the individual drug and unexposed group comparisons, only reduced verbal and full-scale IQ scores in PB-exposed versus matched unexposed children were found. Comparisons between drug groups revealed a significant reduction in verbal IQ and full-scale IQ in PB-exposed versus PHT-exposed children, but not in other drug-drug comparisons. SIGNIFICANCE These results demonstrate effects on children's mental ability due to prenatal PB exposure, such that analyses adjusted for maternal IQ scores, revealed reduced verbal mental abilities and reduced full-scale IQ scores when scores in exposed children were compared to scores from children of the same age and sex born to demographically similar, healthy unexposed women. When comparisons were made between drug groups, children exposed prenatally to PB performed significantly worse than prenatally PHT-exposed children, but CBZ-exposed children's scores were not significantly different from those of PB or PHT-exposed groups. In light of shared effects on structural teratogenicity, these findings suggest that use of PB monotherapy for the management of seizures during pregnancy may be associated with increased risk in comparison to PHT when neurobehavioral functioning is considered, and that only PB-exposed children have reduced performance compared to matched controls. Attention to these effects is critical in the developing world where use of these older medications remains predominant, and prudent choices can be made to reduce impact on cognitive development.
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Affiliation(s)
- Jane Adams
- University of Massachusetts Boston, Psychology Department, Boston, MA, United States.
| | - Patricia Ann Janulewicz
- Boston University School of Public Health, Environmental Health Department, Boston, MA, United States
| | - Eric A Macklin
- Biostatistics Center, Massachusetts General Hospital and Harvard Medical School, Biostatistics, Boston, MA, United States
| | - Ruby Dhillon
- Boston University School of Public Health, Environmental Health Department, Boston, MA, United States
| | - Catherine Phillips
- UMass Memorial Medical Center, Department of Neurology, Worcester, MA, United States
| | - Donald L Schomer
- Beth Israel Deaconess Medical Center, Department of Neurology, Boston, MA, United States
| | - William A Tosches
- Beth Israel Deaconess Medical Center, Department of Neurology, Hopedale, MA, United States
| | - Jeffrey M Carlson
- Boston University School of Public Health, Environmental Health Department, Boston, MA, United States
| | - Lewis B Holmes
- MassGeneral Hospital for Children, Medical Genetics Unit, Boston, MA, United States
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Husebye ESN, Wendel AWK, Gilhus NE, Riedel B, Bjørk MH. Plasma unmetabolized folic acid in pregnancy and risk of autistic traits and language impairment in antiseizure medication-exposed children of women with epilepsy. Am J Clin Nutr 2022; 115:1432-1440. [PMID: 34994378 PMCID: PMC9071448 DOI: 10.1093/ajcn/nqab436] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 12/30/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Fetal exposure to unmetabolized folic acid (UMFA) during pregnancy may be associated with adverse neurodevelopment. Antiseizure medication (ASM) may interact with folate metabolism. Women with epilepsy using ASM are often recommended high-dose folic acid supplement use during pregnancy. OBJECTIVES The aim was to determine the association between UMFA concentrations in pregnant women with epilepsy using ASM and risk of autistic traits or language impairment in their children aged 1.5-8 y. METHODS We included children of women with epilepsy using ASM and with plasma UMFA measurement enrolled in the Norwegian Mother, Father, and Child Cohort Study (MoBa). Data on ASM use, folic acid supplement use, autistic traits, and language impairment were obtained from parent-reported questionnaires during pregnancy and when the child was 1.5, 3, 5, and 8 y old. Plasma UMFA concentrations were measured during gestational weeks 17-19. RESULTS A total of 227 ASM-exposed children of 203 women with epilepsy were included. Response rates at ages 1.5, 3, 5, and 8 y were 67% (n = 151), 54% (n = 122), 36% (n = 82), and 37% (n = 85), respectively. For 208 (94%) children, the mother reported intake of folic acid supplement. There was no association between UMFA concentrations and autistic traits score in the adjusted multiple regression analyses at age 3 y (unstandardized B: -0.01; 95% CI: -0.03, 0.004) or 8 y (unstandardized B: 0.01; 95% CI: -0.02, 0.03). Children exposed to UMFA had no increased risk of autistic traits at age 3 y [adjusted OR (aOR): 0.98; 95% CI: 0.2, 4.2] or 8 y (aOR: 0.1; 95% CI: 0.01, 1.4) compared with unexposed children. We found no association between UMFA concentrations and language impairment in children aged 1.5-8 y. CONCLUSIONS Our findings do not support any adverse neurodevelopmental effects of UMFA exposure in utero in children of women with epilepsy using ASM.
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Affiliation(s)
| | | | - Nils Erik Gilhus
- Department of Clinical Medicine, University of Bergen,
Bergen, Norway,Department of Neurology, Haukeland University Hospital,
Bergen, Norway
| | - Bettina Riedel
- Department of Medical Biochemistry and Pharmacology, Haukeland University
Hospital, Bergen, Norway,Department of Clinical Science, University of Bergen,
Bergen, Norway
| | - Marte Helene Bjørk
- Department of Clinical Medicine, University of Bergen,
Bergen, Norway,Department of Neurology, Haukeland University Hospital,
Bergen, Norway
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Lai W, He S, Zhou D, Chen L. Managing reproductive problems in women with epilepsy of childbearing age. ACTA EPILEPTOLOGICA 2021. [DOI: 10.1186/s42494-021-00062-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AbstractGirls and women constitute nearly 50% of all epilepsy cases. Apart from the disease symptoms, epilepsy and antiseizure medications (ASMs) may also affect the reproductive function, pregnancy and even the health of their offspring. Therefore, it is very important to identify and summarize the problems and risks for women with epilepsy (WWE) of childbearing age, and offer internationally recognized methods through multidisciplinary collaboration. In this review, we summarize the reproduction-related problems with WWE and propose multidisciplinary management by epileptologists, gynecologists and obstetricians, as well as other experts, from preconception to delivery. Large, multicenter registries are needed to advance our knowledge on new ASMs and their effects on WWE and their offspring.
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Husebye ESN, Riedel B, Bjørke-Monsen AL, Spigset O, Daltveit AK, Gilhus NE, Bjørk MH. Vitamin B status and association with antiseizure medication in pregnant women with epilepsy. Epilepsia 2021; 62:2968-2980. [PMID: 34590314 DOI: 10.1111/epi.17076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/23/2021] [Accepted: 09/07/2021] [Indexed: 01/19/2023]
Abstract
OBJECTIVE Antiseizure medication (ASM) use interacts with vitamin B status in nonpregnant epilepsy populations. We aimed to examine the association between ASM and vitamin B status in pregnant women with epilepsy. METHODS We performed a cross-sectional study of pregnancies in women with epilepsy enrolled in the Norwegian Mother, Father and Child Cohort Study from 1999 to 2008. Data on ASM and vitamin supplement use were collected from questionnaires. We analyzed maternal plasma concentrations of ASM and metabolites of folate, including unmetabolized folic acid (UMFA), riboflavin (vitamin B2), pyridoxine (vitamin B6), and niacin (vitamin B3) during gestational weeks 17-19. RESULTS We included 227 singleton pregnancies exposed to ASM with available plasma samples (median maternal age 29 years, range 18 to 41 years). From the preconception period to gestational week 20, any supplement of folic acid was reported in 208 of pregnancies (94%), riboflavin in 72 (33%), pyridoxine in 77 (35%), and niacin in 45 (20%). High ASM concentrations correlated with high concentrations of UMFA and inactive folate metabolites, and with low concentrations of riboflavin and metabolically active pyridoxine. There was no association between ASM and niacin status. SIGNIFICANCE ASM concentrations during pregnancy were associated with vitamin B status in pregnant women with epilepsy. Additional studies are needed to determine the clinical impact of these findings, and to define the optimal vitamin doses that should be recommended to improve pregnancy outcomes.
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Affiliation(s)
- Elisabeth Synnøve Nilsen Husebye
- Department of Clinical Medicine, University of Bergen, Bergen, Norway.,Department of Neurology, Haukeland University Hospital, Bergen, Norway
| | - Bettina Riedel
- Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway.,Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Anne-Lise Bjørke-Monsen
- Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway.,Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Olav Spigset
- Department of Clinical Pharmacology, St. Olav University Hospital, Trondheim, Norway.,Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Anne Kjersti Daltveit
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.,Department of Health Registries, Norwegian Institute of Public Health, Bergen, Norway
| | - Nils Erik Gilhus
- Department of Clinical Medicine, University of Bergen, Bergen, Norway.,Department of Neurology, Haukeland University Hospital, Bergen, Norway
| | - Marte Helene Bjørk
- Department of Clinical Medicine, University of Bergen, Bergen, Norway.,Department of Neurology, Haukeland University Hospital, Bergen, Norway
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Knight R, Wittkowski A, Bromley RL. Neurodevelopmental outcomes in children exposed to newer antiseizure medications: A systematic review. Epilepsia 2021; 62:1765-1779. [PMID: 34128227 DOI: 10.1111/epi.16953] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 05/13/2021] [Accepted: 05/13/2021] [Indexed: 01/16/2023]
Abstract
As prenatal exposure to certain older antiseizure medications (ASMs) has been linked with poorer neurodevelopmental outcomes in children, the use of newer ASMs throughout pregnancy has increased. The current review aimed to delineate the impact of in utero exposure to these newer ASMs on child neurodevelopment. A systematic search of MEDLINE, Embase, Web of Science, Cumulative Index to Nursing and Allied Health Literature Plus, and PsycINFO was conducted, limiting results to articles available in English and published after the year 2000. Studies investigating neurodevelopmental outcomes following in utero exposure to the following ASMs were eligible for inclusion in the review: eslicarbazepine, gabapentin, lacosamide, lamotrigine, levetiracetam, oxcarbazepine, perampanel, topiramate, and zonisamide. Thirty-five publications were identified, and a narrative synthesis was undertaken. Methodological quality was variable, with distinct patterns of strengths/weaknesses attributable to design. Most studies examined lamotrigine exposure and reported nonsignificant effects on child neurodevelopment. Comparatively fewer high-quality studies were available for levetiracetam, limiting conclusions regarding findings to date. Data for topiramate, gabapentin, and oxcarbazepine were so limited that firm conclusions could not be drawn. Concerningly, no studies investigated eslicarbazepine, lacosamide, perampanel, or zonisamide. Exposure to certain newer ASMs, such as lamotrigine and levetiracetam, does not thus far appear to impact certain aspects of neurodevelopment, but further delineation across the different neurodevelopmental domains and dosage levels is required. A lack of data cannot be inferred to represent safety of newer ASMs, which are yet to be investigated.
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Affiliation(s)
- Rebecca Knight
- Division of Psychology and Mental Health, University of Manchester, Manchester, UK.,Greater Manchester Mental Health National Health Service Foundation Trust, Manchester, UK
| | - Anja Wittkowski
- Division of Psychology and Mental Health, University of Manchester, Manchester, UK.,Greater Manchester Mental Health National Health Service Foundation Trust, Manchester, UK
| | - Rebecca Louise Bromley
- Division of Evolution and Genomic Science, University of Manchester, Manchester, UK.,Royal Manchester Children's Hospital, Manchester Academic Health Sciences, Manchester, UK
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Furugen A, Kanno Y, Ohyama N, Kurosawa Y, Jinno N, Narumi K, Iseki K, Kobayashi M. Effects of valproate, an HDAC inhibitor, on the expression of folate carriers and folate metabolism-related genes in the placenta of rats. Drug Metab Pharmacokinet 2021; 40:100409. [PMID: 34293696 DOI: 10.1016/j.dmpk.2021.100409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 04/30/2021] [Accepted: 05/31/2021] [Indexed: 11/24/2022]
Abstract
Valproate (VPA), an antiepileptic drug, is known to inhibit histone deacetylases (HDACs). Exposure to VPA during pregnancy increases several fetal risks. The maintenance of folate level during pregnancy is essential for adequate fetal development, and the placenta plays a critical role in supplying nutrients to the fetus. The aim of this study was to elucidate the effects of VPA on the gene expression of folate carriers and metabolizing enzymes in the rat placenta at both mid and late gestation periods. Pregnant rats were orally administered VPA on a single day or 4 days (repeated administration). Gene expression of folate carriers (Folr1, Slc19a1, Slc46a1) and metabolizing enzymes (Cth, Mtr, Mtrr, Mthfr, Dhfr) was assessed in the placenta on gestational day (GD) 13 or GD20. In the control rats, the expression of Folr1, Slc46a1, Cth, and Mthfr tended to be upregulated, whereas that of Mtrr and Dhfr was downregulated during gestation; the expression of Slc19a1 and Mtr did not change. Repeated VPA administration reduced the placental expression of Folr1and Mtr on GD20 and increased the expression of Dhfr on GD13 compared with the control. These findings indicate that administration of VPA alters the placental gene expression of folate carriers and metabolism-related enzymes.
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Affiliation(s)
- Ayako Furugen
- Laboratory of Clinical Pharmaceutics & Therapeutics, Division of Pharmasciences, Faculty of Pharmaceutical Sciences, Hokkaido University.
| | - Yuki Kanno
- Laboratory of Clinical Pharmaceutics & Therapeutics, Division of Pharmasciences, Faculty of Pharmaceutical Sciences, Hokkaido University
| | - Nanami Ohyama
- Laboratory of Clinical Pharmaceutics & Therapeutics, Division of Pharmasciences, Faculty of Pharmaceutical Sciences, Hokkaido University
| | - Yuko Kurosawa
- Laboratory of Clinical Pharmaceutics & Therapeutics, Division of Pharmasciences, Faculty of Pharmaceutical Sciences, Hokkaido University
| | - Naoko Jinno
- Laboratory of Clinical Pharmaceutics & Therapeutics, Division of Pharmasciences, Faculty of Pharmaceutical Sciences, Hokkaido University
| | - Katsuya Narumi
- Laboratory of Clinical Pharmaceutics & Therapeutics, Division of Pharmasciences, Faculty of Pharmaceutical Sciences, Hokkaido University
| | - Ken Iseki
- Laboratory of Clinical Pharmaceutics & Therapeutics, Division of Pharmasciences, Faculty of Pharmaceutical Sciences, Hokkaido University
| | - Masaki Kobayashi
- Laboratory of Clinical Pharmaceutics & Therapeutics, Division of Pharmasciences, Faculty of Pharmaceutical Sciences, Hokkaido University.
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Arfman IJ, Wammes-van der Heijden EA, Ter Horst PGJ, Lambrechts DA, Wegner I, Touw DJ. Therapeutic Drug Monitoring of Antiepileptic Drugs in Women with Epilepsy Before, During, and After Pregnancy. Clin Pharmacokinet 2021; 59:427-445. [PMID: 31912315 DOI: 10.1007/s40262-019-00845-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
During pregnancy, the pharmacokinetics of an antiepileptic drug is altered because of changes in the clearance capacity and volume of distribution. These changes may have consequences for the frequency of seizures during pregnancy and fetal exposure to antiepileptic drugs. In 2009, a review was published providing guidance for the dosing and therapeutic drug monitoring of antiepileptic drugs during pregnancy. Since that review, new drugs have been licensed and new information about existing drugs has been published. With this review, we aim to provide an updated narrative overview of changes in the pharmacokinetics of antiepileptic drugs in women during pregnancy. In addition, we aim to formulate advice for dose modification and therapeutic drug monitoring of antiepileptic drugs. We searched PubMed and the available literature on the pharmacokinetic changes of antiepileptic drugs and seizure frequency during pregnancy published between January 2007 and September 2018. During pregnancy, an increase in clearance and a decrease in the concentrations of lamotrigine, levetiracetam, oxcarbazepine's active metabolite licarbazepine, topiramate, and zonisamide were observed. Carbamazepine clearance remains unchanged during pregnancy. There is inadequate or no evidence for changes in the clearance or concentrations of clobazam and its active metabolite N-desmethylclobazam, gabapentin, lacosamide, perampanel, and valproate. Postpartum elimination rates of lamotrigine, levetiracetam, and licarbazepine resumed to pre-pregnancy values within the first few weeks after pregnancy. We advise monitoring of antiepileptic drug trough concentrations twice before pregnancy. This is the reference concentration. We also advise to consider dose adjustments guided by therapeutic drug monitoring during pregnancy if the antiepileptic drug concentration decreases 15-25% from the pre-pregnancy reference concentration, in the presence of risk factors for convulsions. If the antiepileptic drug concentration changes more than 25% compared with the reference concentration, dose adjustment is advised. Monitoring of levetiracetam, licarbazepine, lamotrigine, and topiramate is recommended during and after pregnancy. Monitoring of clobazam, N-desmethylclobazam, gabapentin, lacosamide, perampanel, and zonisamide during and after pregnancy should be considered. Because of the risk of teratogenic effects, valproate should be avoided during pregnancy. If that is impossible, monitoring of both total and unbound valproate is recommended. More research is needed on the large number of unclear pregnancy-related effects on the pharmacokinetics of antiepileptic drugs.
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Affiliation(s)
- Inge J Arfman
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | | | | | - Danielle A Lambrechts
- Academic Center for Epileptology Kempenhaeghe and Maastricht UMC+, Sterkselseweg 65, 5591, Heeze, VE, The Netherlands
| | - Ilse Wegner
- SEIN-Stichting Epilepsie Instellingen Nederland, Zwolle, The Netherlands
| | - Daan J Touw
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Department of Pharmaceutical Analysis, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, The Netherlands
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Estrogen profile- and pharmacogenetics-based lamotrigine dosing regimen optimization: Recommendations for pregnant women with epilepsy. Pharmacol Res 2021; 169:105610. [PMID: 33857625 DOI: 10.1016/j.phrs.2021.105610] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/04/2021] [Accepted: 04/08/2021] [Indexed: 01/16/2023]
Abstract
During pregnancy, various physiological changes occur that can alter the pharmacokinetics of antiepileptic drugs, such as lamotrigine (LTG). Anticipating the change in LTG dose required to achieve a pre-pregnancy target concentration is challenging. This study aimed to develop a refined population pharmacokinetic (PopPK) model of LTG in pregnant women with epilepsy (WWE) to identify factors explaining the variability in pharmacokinetics and to establish a model-informed individualized dosing regimen. On that basis, a coarsened model containing only clinical variables was also developed to examine its predictive performance compared to the refined model. In total, 322 concentration-time points from 51 pregnant WWE treated with LTG were employed to establish a refined PopPK model that included endogenous estrogen profiles, variants of candidate genes encoding LTG-metabolizing enzymes and -transporter proteins, and other clinical variables and a coarsened model that included only clinical variables, respectively. Data from an additional 11 patients were used for external validation of these two models. A nonlinear mixed-effect modeling approach was used for PopPK analysis of LTG. The standard goodness-of-fit method, bootstrap, normalized prediction distribution errors and external evaluation were adopted to estimate the stability and predictive performance of the candidate models. Akaike information criterion (AIC) was used to compare the goodness of fit between these two models. A lower AIC indicates a better fit of the data and the preferred model. Recommended dosing regimens for pregnant WWE were selected using Monte Carlo simulation based on the established optimal model. In the refined PopPK model, the population mean of apparent LTG clearance (CL/F) in pregnant WWE was estimated to be 2.82 L/h, with an inter-individual variability of 23.6%. PopPK analysis indicated that changes in estrogen profile during pregnancy were the predominant reason for the significant variations in LTG-CL/F. Up to the 3rd trimester, the concentration accumulation effect of E2 increased LTG-CL/F by 5.109 L/h from baseline levels. Contrary to effect of E2, E3 as the main circulating estrogen in pregnancy with a peak value of 34.41 ng/mL is 1000-fold higher than that in non-pregnancy reduced LTG-CL/F by 1.413 L/h. In addition, the UGT2B7 rs4356975 C > T and ABCB1 rs1128503 A > G variants may contribute to a better understanding of the inter-individual variability in LTG-CL/F. LTG-CL/F was 1.66-fold higher in UGT2B7 rs4356975 CT or TT genotype carriers than in CC genotype carriers. In contrast, ABCB1 rs1128503 GG genotype carriers had only 71.9% of the LTG-CL/F of AA or AG genotype carriers. In the coarsened PopPK model, the gestational age was a promising predictor of changes in LTG-CL/F. When comparing these two models, the refined PopPK model was favored over the coarsened PopPK model (AIC = -30.899 vs. -20.017). Monte Carlo simulation based on optimal PopPK model revealed that the LTG dosage administered to carriers of the UGT2B7 rs4356975 CT or TT genotype required a 33-50% increase to reach the pre-pregnancy target concentration, and carriers of the ABCB1 rs1128503 GG genotype required a 33-66% lower dose of LTG than carriers of the ABCB1 rs1128503 AA or AG genotype. Changes in estrogen profile during pregnancy was a better predictor of variations in LTG-CL/F than gestational age. The developed model based on estrogen profile and pharmacogenetics can serve as a foundation for further optimization of dosing regimens of LTG in pregnant WWE.
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Christian CA, Reddy DS, Maguire J, Forcelli PA. Sex Differences in the Epilepsies and Associated Comorbidities: Implications for Use and Development of Pharmacotherapies. Pharmacol Rev 2021; 72:767-800. [PMID: 32817274 DOI: 10.1124/pr.119.017392] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The epilepsies are common neurologic disorders characterized by spontaneous recurrent seizures. Boys, girls, men, and women of all ages are affected by epilepsy and, in many cases, by associated comorbidities as well. The primary courses of treatment are pharmacological, dietary, and/or surgical, depending on several factors, including the areas of the brain affected and the severity of the epilepsy. There is a growing appreciation that sex differences in underlying brain function and in the neurobiology of epilepsy are important factors that should be accounted for in the design and development of new therapies. In this review, we discuss the current knowledge on sex differences in epilepsy and associated comorbidities, with emphasis on those aspects most informative for the development of new pharmacotherapies. Particular focus is placed on sex differences in the prevalence and presentation of various focal and generalized epilepsies; psychiatric, cognitive, and physiologic comorbidities; catamenial epilepsy in women; sex differences in brain development; the neural actions of sex and stress hormones and their metabolites; and cellular mechanisms, including brain-derived neurotrophic factor signaling and neuronal-glial interactions. Further attention placed on potential sex differences in epilepsies, comorbidities, and drug effects will enhance therapeutic options and efficacy for all patients with epilepsy. SIGNIFICANCE STATEMENT: Epilepsy is a common neurological disorder that often presents together with various comorbidities. The features of epilepsy and seizure activity as well as comorbid afflictions can vary between men and women. In this review, we discuss sex differences in types of epilepsies, associated comorbidities, pathophysiological mechanisms, and antiepileptic drug efficacy in both clinical patient populations and preclinical animal models.
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Affiliation(s)
- Catherine A Christian
- Department of Molecular and Integrative Physiology, Neuroscience Program, and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois (C.A.C.); Department of Neuroscience and Experimental Therapeutics, College of Medicine, Texas A&M University Health Science Center, Bryan, Texas (D.S.R.); Neuroscience Department, Tufts University School of Medicine, Boston, Massachusetts (J.M.); and Departments of Pharmacology and Physiology and Neuroscience, Georgetown University, Washington, D.C. (P.A.F.)
| | - Doodipala Samba Reddy
- Department of Molecular and Integrative Physiology, Neuroscience Program, and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois (C.A.C.); Department of Neuroscience and Experimental Therapeutics, College of Medicine, Texas A&M University Health Science Center, Bryan, Texas (D.S.R.); Neuroscience Department, Tufts University School of Medicine, Boston, Massachusetts (J.M.); and Departments of Pharmacology and Physiology and Neuroscience, Georgetown University, Washington, D.C. (P.A.F.)
| | - Jamie Maguire
- Department of Molecular and Integrative Physiology, Neuroscience Program, and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois (C.A.C.); Department of Neuroscience and Experimental Therapeutics, College of Medicine, Texas A&M University Health Science Center, Bryan, Texas (D.S.R.); Neuroscience Department, Tufts University School of Medicine, Boston, Massachusetts (J.M.); and Departments of Pharmacology and Physiology and Neuroscience, Georgetown University, Washington, D.C. (P.A.F.)
| | - Patrick A Forcelli
- Department of Molecular and Integrative Physiology, Neuroscience Program, and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois (C.A.C.); Department of Neuroscience and Experimental Therapeutics, College of Medicine, Texas A&M University Health Science Center, Bryan, Texas (D.S.R.); Neuroscience Department, Tufts University School of Medicine, Boston, Massachusetts (J.M.); and Departments of Pharmacology and Physiology and Neuroscience, Georgetown University, Washington, D.C. (P.A.F.)
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Winterbottom JB, Marson AG, Noble A, Tudur Smith C, Mathieson A. Preconception care for women with epilepsy: a mixed methods review. Hippokratia 2020. [DOI: 10.1002/14651858.cd011007.pub2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Janine B Winterbottom
- The Walton Centre NHS Foundation Trust; Liverpool UK
- Department of Molecular and Clinical Pharmacology; Institute of Translational Medicine, University of Liverpool; Liverpool UK
| | - Anthony G Marson
- The Walton Centre NHS Foundation Trust; Liverpool UK
- Department of Molecular and Clinical Pharmacology; Institute of Translational Medicine, University of Liverpool; Liverpool UK
- Liverpool Health Partners; Liverpool UK
| | - Adam Noble
- Department of Psychological Sciences; University of Liverpool; Liverpool UK
| | - Catrin Tudur Smith
- Department of Health Data Science; University of Liverpool; Liverpool UK
| | - Amy Mathieson
- Department of Public Health, Policy and Systems; University of Liverpool; Liverpool UK
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AlSheikh MH. Prevalence of epilepsy in Saudi pregnant women and possible effects of anti-epileptic drugs on pregnancy outcomes. ACTA ACUST UNITED AC 2020; 25:32-37. [PMID: 31982897 PMCID: PMC8015625 DOI: 10.17712/nsj.2020.1.20190077] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Objectives: To determine the prevalence of epilepsy in Saudi pregnant women and estimate the frequency of seizure types in suffering individuals using different anti-epileptic drug modalities. It also aimed to report the teratogenic effects of anti-epileptic drugs as observed in neonates. Methods: This prospective study was conducted at King Fahd University Hospital from June 2018 to July 2019. Sixty-eight pregnant women diagnosed with epilepsy were included in this study. Seizure types and their frequencies were recorded along with anti-epileptic drug therapies and their association with fetal/neonatal malformations. Results: Out of 68 epileptic pregnant females, 30 (44.1%) experienced focal seizures and 38 (55.9%) experienced generalized seizures. Thirty-nine (57.3%) received monotherapy, 21 (30.9%) received polytherapy and 8 (11.8%) did not take antiepileptic drugs during pregnancy. Thirty-six (52.9%) patients experienced no change in seizure frequency during pregnancy, 19 (27.9%) experienced increase in seizure frequency and 13 (19.1%) showed decreased seizure frequency. The pregnancy outcomes analysis showed 2 (2.9%) intrauterine fetal deaths, whereas 4 (4.9%) neonates showed facial and/or organ malformations. Conclusion: The frequency of seizures was found to increase in only 27.9% of the pregnant women in the sample. Malformation and mortality rates were higher in fetuses/neonates of patients with generalized seizures. It was observed that for the patient group using monotherapy, the rate of healthy babies was higher than that of the group using polytherapy.
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Affiliation(s)
- Mona H AlSheikh
- Department of Physiology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Kingdom of Saudi Arabia. E-mail:
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Unnikrishnan G, Jacob NS, Salim S, Jose M, Salini RA, Pavithran V, Jeemon P, Thomas SV. Enduring language deficits in children of women with epilepsy and the potential role of intrauterine exposure to antiepileptic drugs. Epilepsia 2020; 61:2442-2451. [PMID: 33345345 DOI: 10.1111/epi.16685] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 08/14/2020] [Accepted: 08/14/2020] [Indexed: 01/18/2023]
Abstract
OBJECTIVE Exposure to certain intrauterine antiepileptic drugs (AEDs) can negatively influence the language skills and intelligence of young children. It remains unanswered whether these deficits are transient or persist as children grow up. This study aims to evaluate the language function of children of women with epilepsy (CWE) aged 9-13 years in comparison with their peers, and its relationship with intrauterine AED exposure. METHODS We included 191 CWE in our study from the Kerala Registry of Epilepsy and Pregnancy. Children in the same age group (n = 144) and without maternal epilepsy or antenatal AED exposure served as controls. We used Clinical Examination for Language Function version IV to assess language in both groups. Relevant data related to maternal epilepsy and AED use were obtained from the registry records. RESULTS The average Core Language Scaled Score (CLSS) was significantly lower in CWE as compared to controls (83.19 vs 90.18, P = .001). Similarly, the mean scaled scores in other language parameters were also significantly lower in CWE. In the multivariate analysis, compared to control children, the average CLSS in CWE was 4.5 units lower (95% confidence interval [CI] = -8.8 to -0.2, P = .04) with AED monotherapy exposure and 7.3 units lower with exposure to AED polytherapy (95% CI = -13.8 to -0.8, P = .03). Intrauterine exposure to phenobarbitone (n = 61) and valproate (n = 55) as either monotherapy or polytherapy showed a negative effect on CLSS in CWE as compared to control children. However, carbamazepine (n = 75) and phenytoin (n = 37) use was not associated with significant variation of CLSS. In head-to-head comparisons between AED monotherapies in CWE, phenobarbitone showed a negative effect on CLSS (-14.7, 95% CI = -23.1 to -6.4, P = .001) as compared to carbamazepine. SIGNIFICANCE Intrauterine exposure to phenobarbitone and valproate impairs language development in CWE, with effects persisting into the second decade.
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Affiliation(s)
| | - Nikita Susan Jacob
- Department of Neurology, Kerala Registry of Epilepsy and Pregnancy, Trivandrum, India
| | - Salma Salim
- Department of Neurology, Kerala Registry of Epilepsy and Pregnancy, Trivandrum, India
| | - Manna Jose
- Department of Neurology, Kerala Registry of Epilepsy and Pregnancy, Trivandrum, India
| | - Reshma A Salini
- Department of Neurology, Kerala Registry of Epilepsy and Pregnancy, Trivandrum, India
| | - Veena Pavithran
- Department of Neurology, Kerala Registry of Epilepsy and Pregnancy, Trivandrum, India
| | - Panniyammakal Jeemon
- Achutha Menon Center for Health Science Studies, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, India
| | - Sanjeev V Thomas
- Department of Neurology, Kerala Registry of Epilepsy and Pregnancy, Trivandrum, India
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Kim H, Faught E, Thurman DJ, Fishman J, Kalilani L. Antiepileptic Drug Treatment Patterns in Women of Childbearing Age With Epilepsy. JAMA Neurol 2020; 76:783-790. [PMID: 30933252 DOI: 10.1001/jamaneurol.2019.0447] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Importance Limited population-based data are available on antiepileptic drug (AED) treatment patterns in women of childbearing age with epilepsy; the current population risk is not clear. Objectives To examine the AED treatment patterns and identify differences in use of valproate sodium and topiramate by comorbidities among women of childbearing age with epilepsy. Design, Setting, and Participants A retrospective cohort study used a nationwide commercial database and supplemental Medicare as well as Medicaid insurance claims data to identify 46 767 women with epilepsy aged 15 to 44 years. The eligible study cohort was enrolled between January 1, 2009, and December 31, 2013. Data analysis was conducted from January 1, 2017, to February 22, 2018. Exposures Cases required an International Classification of Diseases, Ninth Revision, Clinical Modification-coded epilepsy diagnosis with continuous medical and pharmacy enrollment. Incident cases required a baseline of 2 or more years without an epilepsy diagnosis or AED prescription before the index date. For both incident and prevalent cases, focal and generalized epilepsy cohorts were matched by age, payer type, and enrollment period and then compared. Main Outcomes and Measures Antiepileptic drug treatment pattern according to seizure type and comorbidities. Results Of the 46 767 patients identified, there were 8003 incident cases (mean [SD] age, 27.3 [9.4] years) and 38 764 prevalent cases (mean [SD] age, 29.7 [9.0] years). Among 3219 women in the incident epilepsy group who received AEDs for 90 days or more, 3173 (98.6%) received monotherapy as first-line treatment; among 28 239 treated prevalent cases, 18 987 (67.2%) received monotherapy. In 3544 (44.3%) incident cases and 9480 (24.5%) prevalent cases, AED treatment was not documented during 180 days or more of follow-up after diagnosis. Valproate (incident: 35 [5.81%]; prevalent: 514 [13.1%]) and phenytoin (incident: 33 [5.48%]; prevalent: 178 [4.53%]) were more commonly used for generalized epilepsy and oxcarbazepine (incident: 53 [8.03%]; prevalent: 386 [9.89%]) was more often used for focal epilepsy. Levetiracetam (incident: focal, 267 [40.5%]; generalized, 271 [45.0%]; prevalent: focal, 794 [20.3%]; generalized, 871 [22.2%]), lamotrigine (incident: focal, 123 [18.6%]; generalized, 106 [17.6%]; prevalent: focal, 968 [24.8%]; generalized, 871 [22.2%]), and topiramate (incident: focal, 102 [15.5%]; generalized, 64 [10.6%]; prevalent: focal, 499 [12.8%]; generalized, 470 [12.0%]) were leading AEDs prescribed for both focal and generalized epilepsy. Valproate was more commonly prescribed for women with comorbid headache or migraine (incident: 53 of 1251 [4.2%]; prevalent: 839 of 8046 [10.4%]), mood disorder (incident: 63 of 860 [7.3%]; prevalent: 1110 of 6995 [15.9%]), and anxiety and dissociative disorders (incident: 57 of 881 [6.5%]; prevalent: 798 of 5912 [13.5%]). Topiramate was more likely prescribed for those with comorbid headache or migraine (incident: 335 of 1251 [26.8%]; prevalent: 2322 of 8046 [28.9%]). Conclusions and Relevance Many women appear to be treated with valproate and topiramate despite known teratogenicity risks. Comorbidities may affect selecting certain AEDs despite their teratogenicity risks.
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Affiliation(s)
- Hyunmi Kim
- Department of Neurology, Stanford University School of Medicine, Palo Alto, California
| | - Edward Faught
- Department of Neurology, Emory University School of Medicine, Atlanta, Georgia
| | - David J Thurman
- Department of Neurology, Emory University School of Medicine, Atlanta, Georgia
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Romoli M, Mazzocchetti P, D'Alonzo R, Siliquini S, Rinaldi VE, Verrotti A, Calabresi P, Costa C. Valproic Acid and Epilepsy: From Molecular Mechanisms to Clinical Evidences. Curr Neuropharmacol 2020; 17:926-946. [PMID: 30592252 PMCID: PMC7052829 DOI: 10.2174/1570159x17666181227165722] [Citation(s) in RCA: 157] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 12/03/2018] [Accepted: 12/20/2018] [Indexed: 12/11/2022] Open
Abstract
After more than a century from its discovery, valproic acid (VPA) still represents one of the most efficient antiepi-leptic drugs (AEDs). Pre and post-synaptic effects of VPA depend on a very broad spectrum of actions, including the regu-lation of ionic currents and the facilitation of GABAergic over glutamatergic transmission. As a result, VPA indirectly mod-ulates neurotransmitter release and strengthens the threshold for seizure activity. However, even though participating to the anticonvulsant action, such mechanisms seem to have minor impact on epileptogenesis. Nonetheless, VPA has been reported to exert anti-epileptogenic effects. Epigenetic mechanisms, including histone deacetylases (HDACs), BDNF and GDNF modulation are pivotal to orientate neurons toward a neuroprotective status and promote dendritic spines organization. From such broad spectrum of actions comes constantly enlarging indications for VPA. It represents a drug of choice in child and adult with epilepsy, with either general or focal seizures, and is a consistent and safe IV option in generalized convulsive sta-tus epilepticus. Moreover, since VPA modulates DNA transcription through HDACs, recent evidences point to its use as an anti-nociceptive in migraine prophylaxis, and, even more interestingly, as a positive modulator of chemotherapy in cancer treatment. Furthermore, VPA-induced neuroprotection is under investigation for benefit in stroke and traumatic brain injury. Hence, VPA has still got its place in epilepsy, and yet deserves attention for its use far beyond neurological diseases. In this review, we aim to highlight, with a translational intent, the molecular basis and the clinical indications of VPA.
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Affiliation(s)
- Michele Romoli
- Neurology Clinic, University of Perugia - S. Maria della Misericordia Hospital, Perugia, Italy
| | - Petra Mazzocchetti
- Neurology Clinic, University of Perugia - S. Maria della Misericordia Hospital, Perugia, Italy
| | - Renato D'Alonzo
- Pediatric Clinic, University of Perugia - S. Maria della Misericordia Hospital, Perugia, Italy
| | | | - Victoria Elisa Rinaldi
- Pediatric Clinic, University of Perugia - S. Maria della Misericordia Hospital, Perugia, Italy
| | - Alberto Verrotti
- Department of Pediatrics, University of L'Aquila - San Salvatore Hospital, L'Aquila, Italy
| | - Paolo Calabresi
- Neurology Clinic, University of Perugia - S. Maria della Misericordia Hospital, Perugia, Italy.,IRCCS "Santa Lucia", Rome, Italy
| | - Cinzia Costa
- Neurology Clinic, University of Perugia - S. Maria della Misericordia Hospital, Perugia, Italy
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20
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Abstract
The management of epilepsy during pregnancy involves optimizing seizure control for the mother, while ensuring the best outcome for the developing fetus. Preconception counseling regarding contraception, folic acid, and antiseizure medications (ASMs) will maximize positive outcomes. Folic acid supplementation is recommended to decrease risk of neural tube defects, similar to the general population, and has been associated with improved cognitive outcomes and decreased risk of autistic traits in offspring. Efforts should be made to optimize the ASM regimen before pregnancy to the fewest number of ASMs, lowest effective doses, with avoidance of more teratogenic agents such as valproic acid. Valproic acid is associated with the highest increased risk of major congenital malformations, as well as reduced cognitive outcomes and neurodevelopmental disorders. Decreasing or changing ASMs during pregnancy should be done with caution, as convulsive seizures have been associated with adverse fetal outcomes including cognitive impairment. Physiologic changes during pregnancy affect ASM levels and in turn, risk for seizures, necessitating frequent monitoring of ASM serum concentrations. Mothers should also be counseled postpartum about how the benefits of breastfeeding outweigh the transmission of medication into breast milk. Communication between providers (obstetrics and neurology) and pregnant women with epilepsy is essential.
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Affiliation(s)
- Rachael Benson
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, United States; NewYork-Presbyterian Hospital, Columbia University Irving Medical Center, New York, NY, United States
| | - Alison Pack
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, United States; NewYork-Presbyterian Hospital, Columbia University Irving Medical Center, New York, NY, United States.
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21
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Husebye ESN, Gilhus NE, Spigset O, Daltveit AK, Bjørk MH. Language impairment in children aged 5 and 8 years after antiepileptic drug exposurein utero– the Norwegian Mother and Child Cohort Study. Eur J Neurol 2019; 27:667-675. [DOI: 10.1111/ene.14140] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 11/21/2019] [Indexed: 01/18/2023]
Affiliation(s)
- E. S. N. Husebye
- Department of Clinical Medicine University of Bergen BergenNorway
- Department of Neurology Haukeland University Hospital BergenNorway
| | - N. E. Gilhus
- Department of Clinical Medicine University of Bergen BergenNorway
- Department of Neurology Haukeland University Hospital BergenNorway
| | - O. Spigset
- Department of Clinical Pharmacology St. Olav University Hospital Trondheim Norway
- Department of Clinical and Molecular Medicine Norwegian University of Science and Technology TrondheimNorway
| | - A. K. Daltveit
- Department of Global Public Health and Primary Care University of Bergen BergenNorway
- Department of Health Registries Norwegian Institute of Public Health Bergen Norway
| | - M. H. Bjørk
- Department of Clinical Medicine University of Bergen BergenNorway
- Department of Neurology Haukeland University Hospital BergenNorway
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22
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Meador KJ, Pennell PB, May RC, Brown CA, Baker G, Bromley R, Loring DW, Cohen MJ. Effects of periconceptional folate on cognition in children of women with epilepsy: NEAD study. Neurology 2019; 94:e729-e740. [PMID: 31871217 DOI: 10.1212/wnl.0000000000008757] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 08/21/2019] [Indexed: 01/24/2023] Open
Abstract
OBJECTIVE Emerging evidence suggests potential positive neuropsychological effects of periconceptional folate in both healthy children and children exposed in utero to antiseizure medications (ASMs). In this report, we test the hypothesis that periconceptional folate improves neurodevelopment in children of women with epilepsy by re-examining data from the Neurodevelopmental Effects of Antiepileptic Drugs (NEAD) study. METHODS The NEAD study was an NIH-funded, prospective, observational, multicenter investigation of pregnancy outcomes in 311 children of 305 women with epilepsy treated with ASM monotherapy. Missing data points were imputed with Markov chain Monte Carlo methods. Multivariate analyses adjusted for multiple factors (e.g., maternal IQ, ASM type, standardized ASM dose, and gestational birth age) were performed to assess the effects of periconceptional folate on cognitive outcomes (i.e., Full Scale Intelligence Quotient [FSIQ], Verbal and Nonverbal indexes, and Expressive and Receptive Language indexes at 3 and 6 years of age, and executive function and memory function at 6 years of age). RESULTS Periconceptional folate was associated with higher FSIQ at both 3 and 6 years of age. Significant effects for other measures included Nonverbal Index, Expressive Language Index, and Developmental Neuropsychological Assessment Executive Function at 6 years of age, and Verbal Index and Receptive Language Index at 3 years of age. Nonsignificant effects included Verbal Index, Receptive Index, Behavior Rating Inventory of Executive Function-Parent Questionnaire Executive Function, and General Memory Index at 6 years of age, and Nonverbal Index and Expressive Index at 3 years of age. CONCLUSIONS Use of periconceptional folate in pregnant women with epilepsy taking ASMs is associated with better cognitive development. CLINICALTRIALSGOV IDENTIFIER NCT00021866.
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Affiliation(s)
- Kimford J Meador
- From the Department of Neurology and Neurological Sciences (K.J.M.), Stanford University, CA; Department of Neurology (P.B.P.), Brigham and Women's Hospital, Harvard Medical School, Boston; The Emmes Corporation (R.C.M., C.A.B.), Rockville, MD; Walton Centre for Neurology & Neurosurgery (G.B.), University of Liverpool, Merseyside; Division of Evolution and Genomic Science (R.B.), School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, UK; Departments of Neurology and Pediatrics (D.W.L.), Emory University, Atlanta; and Pediatric Neuropsychology International (M.J.C.), Augusta, GA.
| | - Page B Pennell
- From the Department of Neurology and Neurological Sciences (K.J.M.), Stanford University, CA; Department of Neurology (P.B.P.), Brigham and Women's Hospital, Harvard Medical School, Boston; The Emmes Corporation (R.C.M., C.A.B.), Rockville, MD; Walton Centre for Neurology & Neurosurgery (G.B.), University of Liverpool, Merseyside; Division of Evolution and Genomic Science (R.B.), School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, UK; Departments of Neurology and Pediatrics (D.W.L.), Emory University, Atlanta; and Pediatric Neuropsychology International (M.J.C.), Augusta, GA
| | - Ryan C May
- From the Department of Neurology and Neurological Sciences (K.J.M.), Stanford University, CA; Department of Neurology (P.B.P.), Brigham and Women's Hospital, Harvard Medical School, Boston; The Emmes Corporation (R.C.M., C.A.B.), Rockville, MD; Walton Centre for Neurology & Neurosurgery (G.B.), University of Liverpool, Merseyside; Division of Evolution and Genomic Science (R.B.), School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, UK; Departments of Neurology and Pediatrics (D.W.L.), Emory University, Atlanta; and Pediatric Neuropsychology International (M.J.C.), Augusta, GA
| | - Carrie A Brown
- From the Department of Neurology and Neurological Sciences (K.J.M.), Stanford University, CA; Department of Neurology (P.B.P.), Brigham and Women's Hospital, Harvard Medical School, Boston; The Emmes Corporation (R.C.M., C.A.B.), Rockville, MD; Walton Centre for Neurology & Neurosurgery (G.B.), University of Liverpool, Merseyside; Division of Evolution and Genomic Science (R.B.), School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, UK; Departments of Neurology and Pediatrics (D.W.L.), Emory University, Atlanta; and Pediatric Neuropsychology International (M.J.C.), Augusta, GA
| | - Gus Baker
- From the Department of Neurology and Neurological Sciences (K.J.M.), Stanford University, CA; Department of Neurology (P.B.P.), Brigham and Women's Hospital, Harvard Medical School, Boston; The Emmes Corporation (R.C.M., C.A.B.), Rockville, MD; Walton Centre for Neurology & Neurosurgery (G.B.), University of Liverpool, Merseyside; Division of Evolution and Genomic Science (R.B.), School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, UK; Departments of Neurology and Pediatrics (D.W.L.), Emory University, Atlanta; and Pediatric Neuropsychology International (M.J.C.), Augusta, GA
| | - Rebecca Bromley
- From the Department of Neurology and Neurological Sciences (K.J.M.), Stanford University, CA; Department of Neurology (P.B.P.), Brigham and Women's Hospital, Harvard Medical School, Boston; The Emmes Corporation (R.C.M., C.A.B.), Rockville, MD; Walton Centre for Neurology & Neurosurgery (G.B.), University of Liverpool, Merseyside; Division of Evolution and Genomic Science (R.B.), School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, UK; Departments of Neurology and Pediatrics (D.W.L.), Emory University, Atlanta; and Pediatric Neuropsychology International (M.J.C.), Augusta, GA
| | - David W Loring
- From the Department of Neurology and Neurological Sciences (K.J.M.), Stanford University, CA; Department of Neurology (P.B.P.), Brigham and Women's Hospital, Harvard Medical School, Boston; The Emmes Corporation (R.C.M., C.A.B.), Rockville, MD; Walton Centre for Neurology & Neurosurgery (G.B.), University of Liverpool, Merseyside; Division of Evolution and Genomic Science (R.B.), School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, UK; Departments of Neurology and Pediatrics (D.W.L.), Emory University, Atlanta; and Pediatric Neuropsychology International (M.J.C.), Augusta, GA
| | - Morris J Cohen
- From the Department of Neurology and Neurological Sciences (K.J.M.), Stanford University, CA; Department of Neurology (P.B.P.), Brigham and Women's Hospital, Harvard Medical School, Boston; The Emmes Corporation (R.C.M., C.A.B.), Rockville, MD; Walton Centre for Neurology & Neurosurgery (G.B.), University of Liverpool, Merseyside; Division of Evolution and Genomic Science (R.B.), School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, UK; Departments of Neurology and Pediatrics (D.W.L.), Emory University, Atlanta; and Pediatric Neuropsychology International (M.J.C.), Augusta, GA
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Zamay TN, Zamay GS, Shnayder NA, Dmitrenko DV, Zamay SS, Yushchenko V, Kolovskaya OS, Susevski V, Berezovski MV, Kichkailo AS. Nucleic Acid Aptamers for Molecular Therapy of Epilepsy and Blood-Brain Barrier Damages. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 19:157-167. [PMID: 31837605 PMCID: PMC6920299 DOI: 10.1016/j.omtn.2019.10.042] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 09/30/2019] [Accepted: 10/28/2019] [Indexed: 01/28/2023]
Abstract
Epilepsy is the fourth most prevalent brain disorder affecting millions of people of all ages. Epilepsy is divided into six categories different in etiology and molecular mechanisms; however, their common denominator is the inability to maintain ionic homeostasis. Antiepileptic drugs have a broad spectrum of action and high toxicity to the whole organism. In many cases, they could not penetrate the blood-brain barrier (BBB) and reach corresponding targets. Nucleic acid aptamers are a new and promising class of antiepileptic drugs as they are non-toxic, specific, and able to regulate the permeability of ion channels or inhibit inflammatory proteins. In this review, we summarize the mechanisms of epileptogenesis and its interconnection with the BBB and show the potential of aptamers for antiepileptic treatment.
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Affiliation(s)
- Tatiana N Zamay
- V.F. Voyno-Yasenetsky Krasnoyarsk State Medical University, Krasnoyarsk, Russia
| | - Galina S Zamay
- V.F. Voyno-Yasenetsky Krasnoyarsk State Medical University, Krasnoyarsk, Russia; Federal Research Center, Krasnoyarsk Research Center Siberian Branch of Russian Academy of Science, Krasnoyarsk, Russia
| | - Natalia A Shnayder
- V.M. Bekhterev National Medical Research Center of Psychiatry and Neurology, Saint Petersburg, Russia
| | - Diana V Dmitrenko
- V.F. Voyno-Yasenetsky Krasnoyarsk State Medical University, Krasnoyarsk, Russia
| | - Sergey S Zamay
- Federal Research Center, Krasnoyarsk Research Center Siberian Branch of Russian Academy of Science, Krasnoyarsk, Russia
| | - Victoria Yushchenko
- V.F. Voyno-Yasenetsky Krasnoyarsk State Medical University, Krasnoyarsk, Russia
| | - Olga S Kolovskaya
- V.F. Voyno-Yasenetsky Krasnoyarsk State Medical University, Krasnoyarsk, Russia; Federal Research Center, Krasnoyarsk Research Center Siberian Branch of Russian Academy of Science, Krasnoyarsk, Russia
| | - Vanessa Susevski
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, ON, Canada
| | - Maxim V Berezovski
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, ON, Canada.
| | - Anna S Kichkailo
- V.F. Voyno-Yasenetsky Krasnoyarsk State Medical University, Krasnoyarsk, Russia; Federal Research Center, Krasnoyarsk Research Center Siberian Branch of Russian Academy of Science, Krasnoyarsk, Russia.
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Zheng W, Hu Y, Chen D, Li Y, Wang S. [Improvement of a mouse model of valproic acid-induced autism]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2019; 39:718-723. [PMID: 31270052 DOI: 10.12122/j.issn.1673-4254.2019.06.14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To establish an improved mouse model of valproic acid (VPA)-induced autism that better mimics human autism. METHODS We established mouse models of autism in female C57 mice by intraperitoneal injection of sodium valproate either at a single dose (600 mg/kg) on day 12.5 after conception (conventional group) or in two doses of 300 mg/kg each on days 10 and 12 after conception (modified group), and the control mice were injected with saline only on day 12.5. The responses of the mice to VPA injection, the uterus, mortality rate, and abortion rate were compared among the 3 groups. The morphology and development of the offspring mice were assessed, and their behavioral ontogeny was evaluated using 3- chambered social test, social test, juvenil play test, and open field test. RESULTS The mortality and abortion rates were significantly lower in the modified model group than in the conventional group (P < 0.01). Compared with those in the control group, the offspring mice in both the conventional group and the modified group showed developmental disorders (P < 0.05). The mortality rate of the newborn mice was significantly lower in the modified group than in the conventional group with a rate of curvy tail of up to 100% (P < 0.001). The offspring mice in both the modified group and conventional group exhibited autism-like behavioral abnormalities, including social disorder and repetitive stereotyped behavior (P < 0.05). CONCLUSIONS The mouse model of autism established using the modified method better mimics human autism with reduced mortality and abortion rates of the pregnant mice and also decreased mortality rate of the newborn mice.
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Affiliation(s)
- Wenxia Zheng
- College of Basic Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Yuling Hu
- College of Basic Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Di Chen
- College of Basic Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Yingbo Li
- College of Basic Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Shali Wang
- College of Basic Medicine, Chongqing Medical University, Chongqing 400016, China
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Autism Spectrum Disorder-Related Syndromes: Modeling with Drosophila and Rodents. Int J Mol Sci 2019; 20:ijms20174071. [PMID: 31438473 PMCID: PMC6747505 DOI: 10.3390/ijms20174071] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 08/17/2019] [Accepted: 08/18/2019] [Indexed: 12/11/2022] Open
Abstract
Whole exome analyses have identified a number of genes associated with autism spectrum disorder (ASD) and ASD-related syndromes. These genes encode key regulators of synaptogenesis, synaptic plasticity, cytoskeleton dynamics, protein synthesis and degradation, chromatin remodeling, transcription, and lipid homeostasis. Furthermore, in silico studies suggest complex regulatory networks among these genes. Drosophila is a useful genetic model system for studies of ASD and ASD-related syndromes to clarify the in vivo roles of ASD-associated genes and the complex gene regulatory networks operating in the pathogenesis of ASD and ASD-related syndromes. In this review, we discuss what we have learned from studies with vertebrate models, mostly mouse models. We then highlight studies with Drosophila models. We also discuss future developments in the related field.
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Karayağmurlu A, Dursun OB, Esin İS, Coşkun M. Serum NGF levels may be associated with intrauterine antiepileptic exposure-related developmental problems. Epilepsy Behav 2019; 97:60-66. [PMID: 31181430 DOI: 10.1016/j.yebeh.2019.05.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 05/03/2019] [Accepted: 05/08/2019] [Indexed: 01/16/2023]
Abstract
OBJECTIVE It has been shown that maternal epilepsy and antiepileptic drug use during pregnancy have adverse developmental outcomes in children. The aim of this study was to investigate the developmental outcomes of maternal epilepsy and prenatal antiepileptic exposure. We also looked for the associations between serum levels of glial cell-derived neurotrophic factor (GDNF) and nerve growth factor (NGF) and developmental outcomes. METHODS This is a retrospective, nonrandomized, case-controlled study. Fifty-three children aged two to six years old with maternal epilepsy were included in the case group. Fifty-three age- and gender-matched children without maternal epilepsy were included in the control group. Developmental assessment was conducted using the Denver II Developmental Screening Test (DDST-II). Serum levels of NGF and GDNF were measured using an enzyme-linked immunosorbent assay (ELISA) kit. RESULTS Multiple regression analysis revealed that prenatal antiepileptic exposure was significantly associated with lower global developmental scores (B = -7.5, confidence interval (CI): -13.1; -1.9, p = 0.009) while periconceptional folate use was associated with a reduced risk for adverse developmental outcomes (B = 6.6, CI: 0.91; 12.3, p = 0.024). Children with prenatal antiepileptic exposure are at increased risk for global developmental delay (GDD) particularly for language domain (p = 0.018). We found a statistically significant positive correlation between NGF levels and global developmental scores (r = 0.302, p = 0.009). Serum levels of GDNF in children with maternal epilepsy were significantly lower than the children without maternal epilepsy (p = 0.025). CONCLUSIONS Prenatal antiepileptic exposure was related with the increased risk of GDD while periconceptional folate use was related with lower risk. Clinicians should inform all women in reproductive age with epilepsy about the possible benefits and risks of antiepileptic drug use during a possible pregnancy. Periconceptional folate use has protective effect on child development, and all women on antiepileptic drugs should be encouraged for periconceptional folate use. Serum NGF levels may be a promising biomarker for monitoring global development delay in at-risk population.
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Affiliation(s)
- Ali Karayağmurlu
- Department of Child and Adolescent Psychiatry, Faculty of Medicine, Istanbul University, İstanbul, Turkey.
| | - Onur Burak Dursun
- Department of Child and Adolescent Psychiatry, University of Health Sciences, International School of Medicine, Istanbul, Turkey
| | - İbrahim Selçuk Esin
- Department of Child and Adolescent Psychiatry, Faculty of Medicine, Atatürk University, Erzurum, Turkey
| | - Murat Coşkun
- Department of Child and Adolescent Psychiatry, Faculty of Medicine, Istanbul University, İstanbul, Turkey
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Valproate and female patients: Prescribing attitudes of Italian epileptologists. Epilepsy Behav 2019; 97:182-186. [PMID: 31252276 DOI: 10.1016/j.yebeh.2019.05.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/17/2019] [Accepted: 05/17/2019] [Indexed: 10/26/2022]
Abstract
INTRODUCTION After the European Medicines Agency (EMA) warning on the use of valproate (VPA) in female patients, we explored the antiepileptic drug (AED) prescribing attitudes of Italian epileptologists with regard to sex and VPA use in patients with epilepsy. MATERIAL AND METHODS A specifically designed 30-item questionnaire was distributed at the annual multicenter meeting of the Italian League Against Epilepsy (LICE), held in Rome on January 2018. One hundred and sixty-nine physicians answered the questionnaire. RESULTS In females, VPA was significantly less prescribed as first-choice AED in childhood absence epilepsy (22% females vs 64% males, p < 0.001), Dravet syndrome (54% vs 71%, p = 0.01), juvenile myoclonic epilepsy (JME) (2% vs 74%, p < 0.001), and undetermined epilepsy (0% vs 32%, p < 0.001). Ninety-six percent of the respondents inform teenage girls of the detrimental effects of intrauterine exposure to VPA; 74% recommend contraceptive measures when prescribing VPA. All the respondents stated that they were aware of the recommendations on VPA in female patients, and 64% claimed to have had difficulties in implementing them. CONCLUSIONS The main challenges were represented by women with JME, who were seizure-free on VPA and failed to respond to levetiracetam and lamotrigine, and by little girls for whom VPA was considered the best choice. According to many Italian epileptologists, the decision to withdraw VPA should be shared with the patient.
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Clayton-Smith J, Bromley R, Dean J, Journel H, Odent S, Wood A, Williams J, Cuthbert V, Hackett L, Aslam N, Malm H, James G, Westbom L, Day R, Ladusans E, Jackson A, Bruce I, Walker R, Sidhu S, Dyer C, Ashworth J, Hindley D, Diaz GA, Rawson M, Turnpenny P. Diagnosis and management of individuals with Fetal Valproate Spectrum Disorder; a consensus statement from the European Reference Network for Congenital Malformations and Intellectual Disability. Orphanet J Rare Dis 2019; 14:180. [PMID: 31324220 PMCID: PMC6642533 DOI: 10.1186/s13023-019-1064-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 04/12/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND A pattern of major and minor congenital anomalies, facial dysmorphic features, and neurodevelopmental difficulties, including cognitive and social impairments has been reported in some children exposed to sodium valproate (VPA) during pregnancy. Recognition of the increased risks of in utero exposure to VPA for congenital malformations, and for the neurodevelopmental effects in particular, has taken many years but these are now acknowledged following the publication of the outcomes of several prospective studies and registries. As with other teratogens, exposure to VPA can have variable effects, ranging from a characteristic pattern of major malformations and significant intellectual disability to the other end of the continuum, characterised by facial dysmorphism which is often difficult to discern and a more moderate effect on neurodevelopment and general health. It has become clear that some individuals with FVSD have complex needs requiring multidisciplinary care but information regarding management is currently lacking in the medical literature. METHODS An expert group was convened by ERN-ITHACA, the European Reference Network for Congenital Malformations and Intellectual Disability comprised of professionals involved in the care of individuals with FVSD and with patient representation. Review of published and unpublished literature concerning management of FVSD was undertaken and the level of evidence from these sources graded. Management recommendations were made based on strength of evidence and consensus expert opinion, in the setting of an expert consensus meeting. These were then refined using an iterative process and wider consultation. RESULTS Whilst there was strong evidence regarding the increase in risk for major congenital malformations and neurodevelopmental difficulties there was a lack of high level evidence in other areas and in particular in terms of optimal clinical management.. The expert consensus approach facilitated the formulation of management recommendations, based on literature evidence and best practice. The outcome of the review and group discussions leads us to propose the term Fetal Valproate Spectrum Disorder (FVSD) as we feel this better encompasses the broad range of effects seen following VPA exposure in utero. CONCLUSION The expert consensus approach can be used to define the best available clinical guidance for the diagnosis and management of rare disorders such as FVSD. FVSD can have medical, developmental and neuropsychological impacts with life-long consequences and affected individuals benefit from the input of a number of different health professionals.
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Affiliation(s)
- Jill Clayton-Smith
- Division of Evolution and Genomic Sciences School of Biological Sciences, University of Manchester, Manchester, UK
- Manchester Centre for Genomic Medicine, Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, UK
| | - Rebecca Bromley
- Division of Evolution and Genomic Sciences School of Biological Sciences, University of Manchester, Manchester, UK
- Paediatric Psychosocial Department, Royal Manchester Children’s Hospital, Manchester Academic Health Sciences Centre, Manchester, UK
| | - John Dean
- Clinical Genetics, Clinical Genetics Service, Ashgrove House, Foresterhill, Aberdeen, UK
| | - Hubert Journel
- Génétique Médicale – Consultation, CHBA Centre Hospitalier Bretagne Atlantique - CH Chubert, 20 boulevard du Général Maurice Guillaudot, BP 70555, 56017 Vannes Cedex, France
| | - Sylvie Odent
- Service de Génétique Clinique, CNRS UMR 6290, Université de Rennes, CHU de Rennes - Hôpital Sud, 16 Boulevard de Bulgarie, 35203 Rennes Cedex 2, France
| | - Amanda Wood
- Aston Brain Centre, School of Life and Health Sciences, Aston Triangle, Birmingham, UK
- Brain and Mind, Clinical Sciences, Murdoch Children’s Research Institute, Parkville, Melbourne, Australia
| | - Janet Williams
- INFACT/FACSA, Independent Fetal Anti-Convulsant Trust & FACS Syndrome Association, Preston, UK
| | - Verna Cuthbert
- Department of Paediatric Rheumatology, Royal Manchester Children’s Hospital, Oxford Road, Manchester, M13 9WL UK
| | - Latha Hackett
- Child and Adolescent Mental Health Services (CAMHS), Royal Manchester Children’s Hospital, Oxford Road, Manchester, M13 9WL UK
| | - Neelo Aslam
- Child and Adolescent Mental Health Services (CAMHS), Royal Manchester Children’s Hospital, Oxford Road, Manchester, M13 9WL UK
| | - Heli Malm
- Teratology Information Service, University of Helsinki and Department of Emergency Medicine and Services, Helsinki University Hospital, Tukholmankatu 17, 00029 HUS, Helsinki, Finland
| | - Gregory James
- Department of Neurosurgery, Great Ormond Street Hospital, Great Ormond Street, London, UK
- Craniofacial Unit, Great Ormond Street Hospital, Great Ormond Street, London, WC1N 3JH UK
- Developmental Neurosciences, UCL Great Ormond Street Institute of Child Health, 30 Guilford Street, London, WC1N 1EH UK
- Victor Horsley Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, Queen Square, London, WC1N 3BG UK
| | - Lena Westbom
- Lund University, Barnmed klin, SUS, Lund, Sweden
| | - Ruth Day
- Guardian Medical Centre, Guardian Street, Warrington, UK
| | - Edmund Ladusans
- Department of Paediatric Cardiology, Royal Manchester Children’s Hospital, Oxford Road, Manchester, UK
| | - Adam Jackson
- Department of Neurology, Salford Royal Hospital NHS Trust, Stott Lane, Salford, UK
| | - Iain Bruce
- Paediatric ENT Department, Royal Manchester Children’s Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Robert Walker
- Department of Paediatric Anaesthesia, Royal Manchester Children’s Hospital, Oxford Road, Manchester, M13 9WL UK
| | - Sangeet Sidhu
- Department of Paediatric Nephrology, Royal Manchester Children’s Hospital, Oxford Road, Manchester, UK
| | - Catrina Dyer
- Cleft Lip and Palate Team, Royal Manchester Children’s Hospital, Oxford Road, Manchester, UK
| | - Jane Ashworth
- Manchester Royal Eye Hospital, Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, UK
| | - Daniel Hindley
- Community Paediatrics, Bolton NHS Foundation Trust, Breightmet Health Centre, Bolton, UK
| | - Gemma Arca Diaz
- Department of Neonatology, Hospital Clinic (Maternitat), Sabino Arana 1, 08028 Barcelona, Spain
| | - Myfanwy Rawson
- Manchester Centre for Genomic Medicine, Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, UK
| | - Peter Turnpenny
- Clinical Genetics, Royal Devon and Exeter NHS Foundation Trust, Gladstone Rd, Exeter, UK
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Thangaratinam S, Marlin N, Newton S, Weckesser A, Bagary M, Greenhill L, Rikunenko R, D'Amico M, Rogozińska E, Kelso A, Hard K, Coleman J, Moss N, Roberts T, Middleton L, Dodds J, Pullen A, Eldridge S, Pirie A, Denny E, McCorry D, Khan KS. AntiEpileptic drug Monitoring in PREgnancy (EMPiRE): a double-blind randomised trial on effectiveness and acceptability of monitoring strategies. Health Technol Assess 2019; 22:1-152. [PMID: 29737274 DOI: 10.3310/hta22230] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Pregnant women with epilepsy on antiepileptic drugs (AEDs) may experience a reduction in serum AED levels. This has the potential to worsen seizure control. OBJECTIVE To determine if, in pregnant women with epilepsy on AEDs, additional therapeutic drug monitoring reduces seizure deterioration compared with clinical features monitoring after a reduction in serum AED levels. DESIGN A double-blind, randomised trial nested within a cohort study was conducted and a qualitative study of acceptability of the two strategies was undertaken. Stratified block randomisation with a 1 : 1 allocation method was carried out. SETTING Fifty obstetric and epilepsy clinics in secondary and tertiary care units in the UK. PARTICIPANTS Pregnant women with epilepsy on one or more of the following AEDs: lamotrigine, carbamazepine, phenytoin or levetiracetam. Women with a ≥ 25% decrease in serum AED level from baseline were randomised to therapeutic drug monitoring or clinical features monitoring strategies. INTERVENTIONS In the therapeutic drug monitoring group, clinicians had access to clinical findings and monthly serum AED levels to guide AED dosage adjustment for seizure control. In the clinical features monitoring group, AED dosage adjustment was based only on clinical features. MAIN OUTCOME MEASURES Primary outcome - seizure deterioration, defined as time to first seizure and to all seizures after randomisation per woman until 6 weeks post partum. Secondary outcomes - pregnancy complications in mother and offspring, maternal quality of life, seizure rates in cohorts with stable serum AED level, AED dose exposure and adverse events related to AEDs. ANALYSIS Analysis of time to first and to all seizures after randomisation was performed using a Cox proportional hazards model, and multivariate failure time analysis by the Andersen-Gill model. The effects were reported as hazard ratios (HRs) with 95% confidence intervals (CIs). Secondary outcomes were reported as mean differences (MDs) or odds ratios. RESULTS A total of 130 women were randomised to the therapeutic drug monitoring group and 133 to the clinical features monitoring group; 294 women did not have a reduction in serum AED level. A total of 127 women in the therapeutic drug monitoring group and 130 women in the clinical features monitoring group (98% of complete data) were included in the primary analysis. There were no significant differences in the time to first seizure (HR 0.82, 95% CI 0.55 to 1.2) or timing of all seizures after randomisation (HR 1.3, 95% CI 0.7 to 2.5) between both trial groups. In comparison with the group with stable serum AED levels, there were no significant increases in seizures in the clinical features monitoring (odds ratio 0.93, 95% CI 0.56 to 1.5) or therapeutic drug monitoring group (odds ratio 0.93, 95% CI 0.56 to 1.5) associated with a reduction in serum AED levels. Maternal and neonatal outcomes were similar in both groups, except for higher cord blood levels of lamotrigine (MD 0.55 mg/l, 95% CI 0.11 to 1 mg/l) or levetiracetam (MD 7.8 mg/l, 95% CI 0.86 to 14.8 mg/l) in the therapeutic drug monitoring group than in the clinical features monitoring group. There were no differences between the groups on daily AED exposure or quality of life. An increase in exposure to lamotrigine, levetiracetam and carbamazepine significantly increased the cord blood levels of the AEDs, but not maternal or fetal complications. Women with epilepsy perceived the need for weighing up their increased vulnerability to seizures during pregnancy against the side effects of AEDs. LIMITATIONS Fewer women than the original target were recruited. CONCLUSION There is no evidence to suggest that regular monitoring of serum AED levels in pregnancy improves seizure control or affects maternal or fetal outcomes. FUTURE WORK RECOMMENDATIONS Further evaluation of the risks of seizure deterioration for various threshold levels of reduction in AEDs and the long-term neurodevelopment of infants born to mothers in both randomised groups is needed. An individualised prediction model will help to identify those women who need close monitoring in pregnancy. TRIAL REGISTRATION Current Controlled Trials ISRCTN01253916. FUNDING This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 22, No. 23. See the NIHR Journals Library website for further project information.
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Affiliation(s)
- Shakila Thangaratinam
- Women's Health Research Unit, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.,Multidisciplinary Evidence Synthesis Hub (mEsh), Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.,Pragmatic Clinical Trials Unit, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Nadine Marlin
- Pragmatic Clinical Trials Unit, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Sian Newton
- Women's Health Research Unit, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.,Pragmatic Clinical Trials Unit, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Annalise Weckesser
- Centre for Health and Social Care Research, Birmingham City University, Birmingham, UK
| | - Manny Bagary
- Neuropsychiatry Department, The Barberry, Birmingham, UK
| | | | - Rachel Rikunenko
- Research and Development, Birmingham Children's Hospital, Birmingham, UK
| | - Maria D'Amico
- Women's Health Research Unit, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.,Pragmatic Clinical Trials Unit, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Ewelina Rogozińska
- Women's Health Research Unit, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.,Multidisciplinary Evidence Synthesis Hub (mEsh), Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Andrew Kelso
- Department of Neurology, Royal London Hospital, London, UK
| | - Kelly Hard
- Research and Development, Birmingham Women's Hospital, Birmingham, UK
| | - Jamie Coleman
- School of Clinical and Experimental Medicine, University of Birmingham, Birmingham, UK
| | - Ngawai Moss
- Patient and Public Involvement group member, Katie's Team, Katherine Twining Network, Queen Mary University of London, London, UK
| | - Tracy Roberts
- Health Economics Unit, University of Birmingham, Birmingham, UK
| | - Lee Middleton
- Birmingham Clinical Trials Unit, University of Birmingham, Birmingham, UK
| | - Julie Dodds
- Women's Health Research Unit, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.,Multidisciplinary Evidence Synthesis Hub (mEsh), Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.,Pragmatic Clinical Trials Unit, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | | | - Sandra Eldridge
- Pragmatic Clinical Trials Unit, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Alexander Pirie
- Research and Development, Birmingham Women's Hospital, Birmingham, UK
| | - Elaine Denny
- Centre for Health and Social Care Research, Birmingham City University, Birmingham, UK
| | - Doug McCorry
- Neuropsychiatry Department, The Barberry, Birmingham, UK
| | - Khalid S Khan
- Women's Health Research Unit, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.,Multidisciplinary Evidence Synthesis Hub (mEsh), Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.,Pragmatic Clinical Trials Unit, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
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Cohen MJ, Meador KJ, May R, Loblein H, Conrad T, Baker GA, Bromley RL, Clayton-Smith J, Kalayjian LA, Kanner A, Liporace JD, Pennell PB, Privitera M, Loring DW. Fetal antiepileptic drug exposure and learning and memory functioning at 6 years of age: The NEAD prospective observational study. Epilepsy Behav 2019; 92:154-164. [PMID: 30660966 DOI: 10.1016/j.yebeh.2018.12.031] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 12/29/2018] [Accepted: 12/30/2018] [Indexed: 10/27/2022]
Abstract
The Neurodevelopmental Effects of Antiepileptic Drugs (NEAD) Study was a prospective observational multicenter study in the USA and UK, which enrolled pregnant women with epilepsy on antiepileptic drug (AED) monotherapy from 1999 to 2004. The study aimed to determine if differential long-term neurodevelopmental effects exist across four commonly used AEDs (carbamazepine, lamotrigine, phenytoin, and valproate). In this report, we examine fetal AED exposure effects on learning and memory functions in 221 six-year-old children (including four sets of twins) whose mothers took one of these AEDs during pregnancy. Their performance was compared with that of a national sample of normally developing six year olds from the standardization sample of the Children's Memory Scale (CMS). The major results of this study indicate that the mean performance levels of children exposed to valproate were significantly below that of the children in the normal comparison group across all seven of the CMS Indexes. With one exception, this finding held up at the subtest level as well. These findings taken together with nonsignificant verbal and nonverbal forgetting scores appear to indicate that, as a group, children exposed to valproate experienced significant difficulty in their ability to process, encode, and learn both auditory/verbal as well as visual/nonverbal material. In addition, they exhibited significant difficulty holding and manipulating information in immediate auditory working memory. However, once the information was learned and stored, the valproate-exposed children appeared to be able to retrieve the information they did learn at normal levels. Finally, the processing, working memory, and learning deficits demonstrated by the valproate-exposed children are dose-related. In contrast to valproate, the findings pertaining to the children exposed to carbamazepine, lamotrigine, and phenytoin in monotherapy are less clear. Therefore, further research will be required to delineate the potential risks to learning and memory functions in children exposed to carbamazepine, lamotrigine, and phenytoin in monotherapy during pregnancy. Additional research employing larger prospective studies will be required to confirm the long-term cognitive and behavioral risks to children of mothers who are prescribed these four AEDs during pregnancy as well as to delineate any potential risks of newer AEDs and to understand the underlying mechanisms of adverse AED effects on the immature brain.
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Affiliation(s)
- Morris J Cohen
- Pediatric Neuropsychology International, Augusta, GA, United States of America.
| | - Kimford J Meador
- Neurology & Neurological Sciences, Stanford University, Stanford, CA, United States of America
| | - Ryan May
- EMMES Corp., Rockville, MD, United States of America
| | | | - Thomas Conrad
- EMMES Corp., Rockville, MD, United States of America
| | - Gus A Baker
- Neurological Science, University of Liverpool, Merseyside, UK
| | - Rebecca L Bromley
- Manchester University Hospitals NHS Trust, Manchester, UK; Division of Evolution and Genomic Science, School of Biological Sciences, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Jill Clayton-Smith
- Manchester University Hospitals NHS Trust, Manchester, UK; Division of Evolution and Genomic Science, School of Biological Sciences, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Laura A Kalayjian
- University of Southern California, Los Angeles, CA, United States of America
| | - Andres Kanner
- Neurology, University of Miami, Miami, FL, United States of America
| | - Joyce D Liporace
- Great Valley Neurological Associates, Paoli, PA, United States of America
| | - Page B Pennell
- Neurology, Harvard University, Boston, MA, United States of America
| | - Michael Privitera
- Neurology, University of Cincinnati, Cincinnati, OH, United States of America
| | - David W Loring
- Neurology, Emory University, Atlanta, GA, United States of America
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Husebye ESN, Gilhus NE, Riedel B, Spigset O, Daltveit AK, Bjørk MH. Verbal abilities in children of mothers with epilepsy: Association to maternal folate status. Neurology 2018; 91:e811-e821. [PMID: 30068633 PMCID: PMC6133626 DOI: 10.1212/wnl.0000000000006073] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 05/24/2018] [Indexed: 12/12/2022] Open
Abstract
Objective To examine the effect of maternal folic acid supplementation and maternal plasma folate and antiepileptic drug (AED) concentrations on language delay in AED-exposed children of mothers with epilepsy. Methods Children of mothers with and without epilepsy enrolled from 1999 to 2008 in the Norwegian Mother and Child Cohort study were included. Information on medical history, AED use, and folic acid supplementation during pregnancy was collected from parent-completed questionnaires. Maternal plasma folate and maternal plasma and umbilical cord AED concentrations were measured in blood samples from gestational weeks 17 to 19 and immediately after birth, respectively. Language development at 18 and 36 months was evaluated by the Ages and Stages Questionnaires. Results A total of 335 AED-exposed children of mothers with epilepsy and 104,222 children of mothers without epilepsy were surveyed. For those with no maternal periconceptional folic acid supplementation, the fully adjusted odds ratio (OR) for language delay in AED-exposed children compared to the controls at 18 months was 3.9 (95% confidence interval [CI] 1.9–7.8, p < 0.001) and at 36 months was 4.7 (95% CI 2.0–10.6, p < 0.001). When folic supplementation was used, the corresponding ORs for language delay were 1.7 (95% CI 1.2–2.6, p = 0.01) and 1.7 (95% CI 0.9–3.2, p = 0.13), respectively. The positive effect of folic acid supplement use on language delay in AED-exposed children was significant only when supplement was used in the period from 4 weeks before the pregnancy and until the end of the first trimester. Conclusion Folic acid use early in pregnancy may have a preventive effect on language delay associated with in utero AED exposure.
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Affiliation(s)
- Elisabeth Synnøve Nilsen Husebye
- From the Department of Clinical Medicine (E.S.N.H., N.E.G., M.H.B.), Section for Neurology, Department of Clinical Science (B.R.), and Department of Global Public Health and Primary Care (A.K.D.), University of Bergen; Department of Neurology (E.S.N.H., N.E.G., M.H.B.) and Laboratory of Clinical Biochemistry (B.R.), Section of Clinical Pharmacology, Haukeland University Hospital, Bergen; Department of Clinical Pharmacology (O.S.), St. Olav University Hospital; Department of Clinical and Molecular Medicine (O.S.), Norwegian University of Science and Technology, Trondheim; and Department of Health Registries (A.K.D.), Norwegian Institute of Public Health, Bergen, Norway.
| | - Nils Erik Gilhus
- From the Department of Clinical Medicine (E.S.N.H., N.E.G., M.H.B.), Section for Neurology, Department of Clinical Science (B.R.), and Department of Global Public Health and Primary Care (A.K.D.), University of Bergen; Department of Neurology (E.S.N.H., N.E.G., M.H.B.) and Laboratory of Clinical Biochemistry (B.R.), Section of Clinical Pharmacology, Haukeland University Hospital, Bergen; Department of Clinical Pharmacology (O.S.), St. Olav University Hospital; Department of Clinical and Molecular Medicine (O.S.), Norwegian University of Science and Technology, Trondheim; and Department of Health Registries (A.K.D.), Norwegian Institute of Public Health, Bergen, Norway
| | - Bettina Riedel
- From the Department of Clinical Medicine (E.S.N.H., N.E.G., M.H.B.), Section for Neurology, Department of Clinical Science (B.R.), and Department of Global Public Health and Primary Care (A.K.D.), University of Bergen; Department of Neurology (E.S.N.H., N.E.G., M.H.B.) and Laboratory of Clinical Biochemistry (B.R.), Section of Clinical Pharmacology, Haukeland University Hospital, Bergen; Department of Clinical Pharmacology (O.S.), St. Olav University Hospital; Department of Clinical and Molecular Medicine (O.S.), Norwegian University of Science and Technology, Trondheim; and Department of Health Registries (A.K.D.), Norwegian Institute of Public Health, Bergen, Norway
| | - Olav Spigset
- From the Department of Clinical Medicine (E.S.N.H., N.E.G., M.H.B.), Section for Neurology, Department of Clinical Science (B.R.), and Department of Global Public Health and Primary Care (A.K.D.), University of Bergen; Department of Neurology (E.S.N.H., N.E.G., M.H.B.) and Laboratory of Clinical Biochemistry (B.R.), Section of Clinical Pharmacology, Haukeland University Hospital, Bergen; Department of Clinical Pharmacology (O.S.), St. Olav University Hospital; Department of Clinical and Molecular Medicine (O.S.), Norwegian University of Science and Technology, Trondheim; and Department of Health Registries (A.K.D.), Norwegian Institute of Public Health, Bergen, Norway
| | - Anne Kjersti Daltveit
- From the Department of Clinical Medicine (E.S.N.H., N.E.G., M.H.B.), Section for Neurology, Department of Clinical Science (B.R.), and Department of Global Public Health and Primary Care (A.K.D.), University of Bergen; Department of Neurology (E.S.N.H., N.E.G., M.H.B.) and Laboratory of Clinical Biochemistry (B.R.), Section of Clinical Pharmacology, Haukeland University Hospital, Bergen; Department of Clinical Pharmacology (O.S.), St. Olav University Hospital; Department of Clinical and Molecular Medicine (O.S.), Norwegian University of Science and Technology, Trondheim; and Department of Health Registries (A.K.D.), Norwegian Institute of Public Health, Bergen, Norway
| | - Marte Helene Bjørk
- From the Department of Clinical Medicine (E.S.N.H., N.E.G., M.H.B.), Section for Neurology, Department of Clinical Science (B.R.), and Department of Global Public Health and Primary Care (A.K.D.), University of Bergen; Department of Neurology (E.S.N.H., N.E.G., M.H.B.) and Laboratory of Clinical Biochemistry (B.R.), Section of Clinical Pharmacology, Haukeland University Hospital, Bergen; Department of Clinical Pharmacology (O.S.), St. Olav University Hospital; Department of Clinical and Molecular Medicine (O.S.), Norwegian University of Science and Technology, Trondheim; and Department of Health Registries (A.K.D.), Norwegian Institute of Public Health, Bergen, Norway
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Asranna A, Jose M, Philip RM, Sarma PS, Thomas SV. Do Anti-Epileptic Drug modifications after first trimester of pregnancy influence fetal malformation or cognitive outcome? Epilepsy Res 2018; 146:121-125. [PMID: 30098567 DOI: 10.1016/j.eplepsyres.2018.07.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 07/21/2018] [Accepted: 07/24/2018] [Indexed: 10/28/2022]
Abstract
OBJECTIVE The management of Women With Epilepsy (WWE) in pregnancy is a challenge that demands balancing the risks of Major Congenital Malformation (MCM) on one hand with adequate seizure control on the other. While most studies have analysed the risks of Anti-Epileptic Drugs (AED) exposure in the first trimester, AED changes during the second and third trimester and their effects on fetal outcome has not been studied adequately. MATERIALS AND METHODS Data of WWE who were prospectively followed up and completed pregnancy with live birth under the Kerala registry of epilepsy and pregnancy (KREP) between 1998 and 2014 were analysed. The AED addition, dose escalation, unchanged continuation, dose reduction or stoppage during the second or third trimester in comparison to the first trimester was tabulated for each drug. The outcome measures evaluated were malformation status and Developmental Quotient (DQ) at one year as extracted from the clinical records of the registry. RESULTS The first trimester AED exposure was nil for 231, monotherapy for 925 and polytherapy for 391 WWE. WWE on monotherapy in first trimester were more likely to remain on the same number of AEDs in second or third trimester than those who were on polytherapy (OR 3.1, 95% CI 2.2 - 4.46). AED naïve women had a higher likelihood (OR 16.7; 95% CI 10.9-25.8) of being started on AED than women on monotherapy being switched to polytherapy. At least one AED was reduced or stopped during second or third trimester more often in women on polytherapy (15.1%) than in women on monotherapy (3.7%) (OR 4.7; 95% CI 2.9-7.2). Malformation rates for the infants of women whose AED dosage was increased or added were not significantly different from those of others. There was no statistically significant change in DQ with increase in dose or addition of drugs in the second or third trimester. CONCLUSION AEDs were reduced in a significant proportion of patients on polytherapy while more than a third of women who were not on AEDs in the first trimester were subsequently started on AEDs. Increase in dose or addition of AEDs after the first trimester is unlikely to influence malformation outcome but the potential adverse effect on the DQ needs to be explored on a larger set of data.
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Affiliation(s)
- Ajay Asranna
- Department Of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum 695011, India.
| | - Manna Jose
- Kerala Registry of Epilepsy and Pregnancy, Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum 695011, India.
| | - Rini M Philip
- Kerala Registry of Epilepsy and Pregnancy, Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum 695011, India.
| | - Prabhakaran S Sarma
- Achutha Menon Centre for Health Science Studies, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum 695011, India.
| | - Sanjeev V Thomas
- Department Of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum 695011, India; Kerala Registry of Epilepsy and Pregnancy, Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum 695011, India.
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Lacey AS, Pickrell WO, Thomas RH, Kerr MP, White CP, Rees MI. Educational attainment of children born to mothers with epilepsy. J Neurol Neurosurg Psychiatry 2018; 89:736-740. [PMID: 29588327 DOI: 10.1136/jnnp-2017-317515] [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: 10/24/2017] [Revised: 01/29/2018] [Accepted: 02/24/2018] [Indexed: 11/03/2022]
Abstract
OBJECTIVE Small prospective studies have identified that children exposed to valproate in utero have poorer scores on cognitive testing. We wanted to identify whether children exposed to antiepileptic drugs (AEDs) in utero have poorer school performance. METHODS We used anonymised, linked, routinely collected healthcare records to identify children born to mothers with epilepsy. We linked these children to their national attainment Key Stage 1 (KS1) tests in mathematics, language and science at the age of 7 and compared them with matched children born to mothers without epilepsy, and with the national KS1 results. We used the core subject indicator (CSI) as an outcome measure (the proportion of children achieving a minimum standard in all subjects) and the results in individual subjects. RESULTS We identified 440 children born to mothers with epilepsy with available KS1 results. Compared with a matched control group, fewer children with mothers being prescribed sodium valproate during pregnancy achieved the national minimum standard in CSI (-12.7% less than the control group), mathematics (-12.1%), language (-10.4%) and in science (-12.2%). Even fewer children with mothers being prescribed multiple AEDs during pregnancy achieved a national minimum standard: CSI (by -20.7% less than the control group), mathematics (-21.9%), language (-19.3%) and science (-19.4%). We did not observe any significant difference in children whose mothers were prescribed carbamazepine or were not taking an AED when compared with the control group. CONCLUSIONS In utero exposure to AEDs in combination, or sodium valproate alone, is associated with a significant decrease in attainment in national educational tests for 7-year-old children compared with both a matched control group and the all-Wales national average. These results give further support to the cognitive and developmental effects of in utero exposure to sodium valproate as well as multiple AEDs, which should be balanced against the need for effective seizure control for women during pregnancy.
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Affiliation(s)
- Arron S Lacey
- Wales Epilepsy Research Network, Swansea University Medical School, Swansea University, Swansea, UK.,Farr Institute, Swansea University Medical School, Swansea, UK
| | - William Owen Pickrell
- Wales Epilepsy Research Network, Swansea University Medical School, Swansea University, Swansea, UK
| | - Rhys H Thomas
- Institute of Psychological Medicine and Clinical Neurosciences, Cardiff University School of Medicine, Cardiff, UK
| | - Mike P Kerr
- Institute of Psychological Medicine and Clinical Neurosciences, Cardiff University School of Medicine, Cardiff, UK
| | - Cathy P White
- Morriston Hospital, Abertawe Bro-Morgannwg University Hospital Trust, Swansea, UK
| | - Mark I Rees
- Wales Epilepsy Research Network, Swansea University Medical School, Swansea University, Swansea, UK
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Abdulrazzaq YM, Shafiullah M, Kochyil J, Padmanabhan R, Bastaki SMA. Ameliorative effects of supplemental folinic acid on Lamotrigine-induced fetal malformations in the mouse. Mol Cell Biochem 2018; 446:185-197. [PMID: 29363057 DOI: 10.1007/s11010-018-3285-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 01/18/2018] [Indexed: 11/29/2022]
Abstract
Data from our previous work indicate that Lamotrigine (LTG) is teratogenic in the mouse. In the present study, we attempted to determine the possible protective effects of exogenous folate on LTG-induced fetal anomalies in TO mouse. Experiment I entailed administering 4 mg/kg of folinic acid (FA) and (25 mg/kg) of LTG intraperitoneally three times on gestation day (GD) 8 to a group of mice; other groups were a group that received similar volumes of saline, a group that received LTG and Saline, a group that received FA and saline. Experiment 2 involved administering groups of mice with daily 3 doses FA (or proportionate volume of saline) on GD 5 through 10 and either 3 doses of saline on GD8, or 3 doses of LTG on GD8. Maternal plasma concentrations of FA, vitamin B12 and homocysteine were determined an hour after the last injection from one-half of all animals. The other half were allowed to go to term (GD18) when they were euthanized and their fetuses were examined for visceral and skeletal malformations. A high incidence of resorption, abortion, embryolethality, congenital malformations, and intrauterine growth restriction (IUGR), was observed in the LTG-treated group. Folic acid and B12 levels were decreased and homocysteine concentration increased significantly in LTG groups. Mice receiving LTG with FA had normal levels of folate, Vitamin B12 and homocysteine levels, and the fetuses had fewer birth defects similar to the controls which were given saline only. Supplemental FA ameliorated to a great extent the LTG-induced embryonic resorption and malformations and restored the FA status.
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Affiliation(s)
- Y M Abdulrazzaq
- Department of Pediatrics, College of Medicine and Health Sciences, UAE University, Al Ain, United Arab Emirates.
| | - M Shafiullah
- Department of Pharmacology, College of Medicine and Health Sciences, UAE University, Al Ain, United Arab Emirates
| | - J Kochyil
- Department of Pediatrics, College of Medicine and Health Sciences, UAE University, Al Ain, United Arab Emirates
| | - R Padmanabhan
- Foundational Sciences Division (RP), College of Medicine, Central Michigan University, Mount Pleasant, MI, 48859, USA
| | - S M A Bastaki
- Department of Pharmacology, College of Medicine and Health Sciences, UAE University, Al Ain, United Arab Emirates.
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35
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Nicolini C, Fahnestock M. The valproic acid-induced rodent model of autism. Exp Neurol 2018; 299:217-227. [DOI: 10.1016/j.expneurol.2017.04.017] [Citation(s) in RCA: 235] [Impact Index Per Article: 39.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 04/26/2017] [Accepted: 04/28/2017] [Indexed: 01/12/2023]
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Ideta-Otsuka M, Igarashi K, Narita M, Hirabayashi Y. Epigenetic toxicity of environmental chemicals upon exposure during development - Bisphenol A and valproic acid may have epigenetic effects. Food Chem Toxicol 2017; 109:812-816. [DOI: 10.1016/j.fct.2017.09.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 09/04/2017] [Accepted: 09/06/2017] [Indexed: 12/20/2022]
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Erisgin Z, Ayas B, Nyengaard JR, Ercument Beyhun N, Terzi Y. The neurotoxic effects of prenatal gabapentin and oxcarbazepine exposure on newborn rats. J Matern Fetal Neonatal Med 2017; 32:461-471. [PMID: 28931341 DOI: 10.1080/14767058.2017.1383378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
AIM Teratogenicity is a problematic issue for pregnant women because of X-ray radiation, drugs, and genetic and unknown variables. First-generation antiepileptic drugs (AED) like valproic acid are well-known teratogens for developing fetuses. However, their usage is necessary in order to prevent maternal seizures. The underlying mechanism of birth defects associated with AED exposure remains unclear and information about the neurotoxic effects of prenatal exposure to AED is still limited. Oxcarbazepine (OXC) and gabapentin (GBP) are second-generation AED. It still remains unclear how much these drugs are safe during pregnancy. This study aimed to investigate whether any neurotoxic effect of OXC and GBP in utero exposure on the developing brain. METHODS Eighteen pregnant Wistar albino rats were divided into six groups. The first group was exposed to OXC at 100 mg/kg/day, the second to GBP at 50 mg/kg/day, and third to saline (0.9% NaCl) at 1.5 ml/day between the first and the fifth days of gestation. The same procedure was applied at the same dosages between the 6th and the 15th days of gestation for the 2nd three groups. Five female offspring (total n = 30, 45 days old) were taken from each group and stereological methods were applied in order to analyze the total and dopaminergic neuron number of the substantia nigra pars compacta (SNc). CONCLUSION The result is that the OXC and GBP exposure at different gestational periods may not give rise to congenital malformation and it appears that the GBP exposure during the organogenesis period proliferatively affects the total number of neurons.
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Affiliation(s)
- Zuleyha Erisgin
- a Department of Histology and Embryology , Giresun University, Faculty of Medicine , Giresun , Turkey
| | - Bulent Ayas
- b Department of Histology and Embryology , Ondokuz Mayıs University, Faculty of Medicine , Samsun , Turkey
| | - Jens R Nyengaard
- c Stereology and Electron Microscopy Laboratory , Aarhus University Hospital , Aarhus , Denmark
| | - N Ercument Beyhun
- d Department of Public Health , Black Sea Technical University, Faculty of Medicine , Trabzon , Turkey
| | - Yuksel Terzi
- e Department of Statistic, Faculty of Fine and Art , Ondokuz Mayıs University , Samsun , Turkey
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Abstract
Bipolar disorder is associated with high morbidity and mortality. The management of bipolar disorder includes a broad approach involving psychoeducation, psychological therapies and psychotropic medication. The management of bipolar disorder in pregnancy is challenging; there is an increase in the rate of relapse of bipolar disorder in the perinatal period and treatment decisions are complex as clinicians are required to weigh up the risks of untreated illness versus unwanted treatment effects on both the mother and the developing fetus. Whilst depressive relapses are more common, women are also at an increased risk of postpartum psychosis, which is a psychiatric emergency that almost always requires inpatient treatment. This paper discusses the limited evidence base regarding the safety of psychotropic medication in the perinatal period, including challenges in perinatal mental health research and the lack of robust evidence. The general principles of prescribing in pregnancy, the importance of preconception counselling, and the risks and benefits associated with antipsychotics, mood stabilisers and antidepressants are addressed.
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Affiliation(s)
- Sarah C Jones
- Greater Manchester Mental Health NHS Foundation Trust, Manchester, UK.,National Centre for Mental Health, MRC Centre for Psychiatric Genetics and Genomics, Cardiff University, Cardiff, UK
| | - Ian Jones
- National Centre for Mental Health, MRC Centre for Psychiatric Genetics and Genomics, Cardiff University, Cardiff, UK.
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Igarashi K, Ideta-Otsuka M, Narita M. The Current State and Future Development of Epigenetic Toxicology. YAKUGAKU ZASSHI 2017; 137:265-271. [PMID: 28250319 DOI: 10.1248/yakushi.16-00230-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Epigenetics has drawn much attention as a mechanism of transcriptional regulation involving modifications to genomic DNA and histone, without changes to nucleotide sequences. Epigenetics is related to various biological phenomena. We defined one of these phenomena as "epigenetic toxicity", in which chemicals affect epigenetic regulation and result in undesirable effects on living organisms. We then detailed the importance of epigenetics and the need for intensive research. Epigenetics is a mechanism that might explain the long-lasting effects of chemicals in an organism, and the formation of a predisposition to various diseases. Recent significant technological advancement in the study of epigenetics could break through the barrier of the mysterious black box of epigenetic toxicity. However, at present it is difficult to say whether the epigenetic point of view is being fully utilized in the evaluation of chemical safety. In this review, we will first summarize the epigenetic toxicity research field, with examples of epigenetic toxicities and technologies for epigenetic analysis. Following that, we will point out some challenges in which an epigenetic viewpoint may be essential for the evaluation of chemical safety, and we will show some current approaches. We hope this review will trigger a discussion about epigenetic toxicity that will lead to encouraging research advancements.
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Affiliation(s)
- Katsuhide Igarashi
- Life Science Tokyo Advanced Research Center (L-StaR), Hoshi University School of Pharmacy and Pharmaceutical Sciences
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40
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Al-Askar M, Bhat RS, Selim M, Al-Ayadhi L, El-Ansary A. Postnatal treatment using curcumin supplements to amend the damage in VPA-induced rodent models of autism. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 17:259. [PMID: 28486989 PMCID: PMC5424332 DOI: 10.1186/s12906-017-1763-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 04/28/2017] [Indexed: 12/21/2022]
Abstract
Background Valproic acid (VPA) is used as a first-line antiepileptic agent and is undergoing clinical trials for use as a treatment for many disorders. Mothers undergoing VPA treatment during early pregnancy reportedly show increased rates of autism among their offspring. The benefits of curcumin supplementation were investigated using an animal model of VPA-induced autism. Methods The study was performed using a rodent model of autism by exposing rat fetuses to valproic acid (VPA) on the 12.5th day of gestation. At 7 days from their birth, the animals were supplemented with a specific dose of curcumin. Forty neonatal male Western Albino rats were divided into four groups. Rats in group I received only phosphate-buffered saline, rats in group II were the prenatal VPA exposure newborns, rats in group III underwent prenatal VPA exposure supplemented with postnatal curcumin, and rats in group IV were given only postnatal curcumin supplements. Results VPA rats exhibited delayed maturation and lower body and brain weights with numerous signs of brain toxicity, such as depletion of IFN-γ, serotonin, glutamine, reduced glutathione, glutathione S-transferase, lipid peroxidase with an increase in CYP450, IL-6, glutamate, and oxidized glutathione. A curcumin supplement moderately corrected these dysfunctions and was especially noticeable in improving delayed maturation and abnormal weight. Conclusions Curcumin plays a significant therapeutic role in attenuating brain damage that has been induced by prenatal VPA exposure in rats; however, its therapeutic role as a dietary supplement still must be certified for use in humans. Electronic supplementary material The online version of this article (doi:10.1186/s12906-017-1763-7) contains supplementary material, which is available to authorized users.
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Hurault-Delarue C, Chouquet C, Savy N, Lacroix I, Beau AB, Montastruc JL, Damase-Michel C. Interest of the trajectory method for the evaluation of outcomes after in utero drug exposure: example of anxiolytics and hypnotics. Pharmacoepidemiol Drug Saf 2017; 26:561-569. [PMID: 28337823 DOI: 10.1002/pds.4199] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 01/31/2017] [Accepted: 02/26/2017] [Indexed: 01/30/2023]
Abstract
PURPOSE The aim of this study was to examine the potential benefit to take into account duration and intensity of drug exposure using the recently published method based on individual drug trajectories. This approach was used to define profiles of exposure to anxiolytics/hypnotics during pregnancy and to evaluate the potential effect on newborn health. METHODS The study was performed in EFEMERIS database (54 918 mother-children pairs). An estimation of adaptation to extrauterine life was assessed using several criteria especially cardio-respiratory symptoms. A proxy variable called "neonatal pathology" was created. The occurrence of this event was studied using two approaches: The Standard Method comparing exposed and unexposed newborns, The Trajectory Method comparing the different profiles of exposure. RESULTS Around 5% of newborns (n = 2768) were identified to be exposed to anxiolytics or hypnotics during pregnancy. Using the Standard Method, 6.2% of exposed newborns developed a "neonatal pathology" against 4.8% of unexposed newborns (odds ratios [OR] = 0.9[0.8-1.2], p = 0.7). With the Trajectory Method taking into account evolution of exposure during pregnancy and treatment intensity, four profiles of pregnant women were identified. A significant difference in the rates of "neonatal pathologies" was observed between profiles (p = 0.0002). Newborns of the two profiles exposed in utero to high constant level of anxiolytics or hypnotics were more at risk of developing "neonatal pathology" than unexposed newborns (OR1 = 2.0 [1.0-3.9] and OR2 = 7.6 [2.8-20.5]). CONCLUSIONS The present study demonstrates the interest of this method based on individual drug trajectories for the evaluation of outcomes in pharmaco-epidemiological studies and more specifically during pregnancy. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Caroline Hurault-Delarue
- Pharmacologie Médicale et Clinique, UMR INSERM 1027, Centre Hospitalier Universitaire, Faculté de Médecine, Université Toulouse III, Toulouse, France
| | - Cécile Chouquet
- Institut de Mathématiques de Toulouse, Laboratoire de Statistique et Probabilités, CNRS (UMR 5219), Paul Sabatier Université, Toulouse, France
| | - Nicolas Savy
- Institut de Mathématiques de Toulouse, Laboratoire de Statistique et Probabilités, CNRS (UMR 5219), Paul Sabatier Université, Toulouse, France
| | - Isabelle Lacroix
- Pharmacologie Médicale et Clinique, UMR INSERM 1027, Centre Hospitalier Universitaire, Faculté de Médecine, Université Toulouse III, Toulouse, France
| | - Anna-Belle Beau
- Pharmacologie Médicale et Clinique, UMR INSERM 1027, Centre Hospitalier Universitaire, Faculté de Médecine, Université Toulouse III, Toulouse, France
| | - Jean-Louis Montastruc
- Pharmacologie Médicale et Clinique, UMR INSERM 1027, Centre Hospitalier Universitaire, Faculté de Médecine, Université Toulouse III, Toulouse, France
| | - Christine Damase-Michel
- Pharmacologie Médicale et Clinique, UMR INSERM 1027, Centre Hospitalier Universitaire, Faculté de Médecine, Université Toulouse III, Toulouse, France
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Güveli BT, Rosti RÖ, Güzeltaş A, Tuna EB, Ataklı D, Sencer S, Yekeler E, Kayserili H, Dirican A, Bebek N, Baykan B, Gökyiğit A, Gürses C. Teratogenicity of Antiepileptic Drugs. CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE : THE OFFICIAL SCIENTIFIC JOURNAL OF THE KOREAN COLLEGE OF NEUROPSYCHOPHARMACOLOGY 2017; 15:19-27. [PMID: 28138106 PMCID: PMC5290711 DOI: 10.9758/cpn.2017.15.1.19] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 12/06/2015] [Accepted: 03/25/2016] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Antiepileptic drugs (AED) have chronic teratogenic effects, the most common of which are congenital heart disease, cleft lip/palate, urogenital and neural tube defects. The aim of our study is to examine teratogenic effects of AED and the correlation between these malformations and AED in single or multiple pregnancies. METHODS This is a retrospective study of malformations in children born to mothers currently followed up by our outpatient clinics who used or discontinued AED during their pregnancy. Their children were then investigated using echocardiography, urinary ultrasound, cranial magnetic resonance image, and examined by geneticists and pediatric dentists. RESULTS One hundred and seventeen children were included in the study. Ninety one of these children were exposed to AED during pregnancy. The most commonly used AED were valproic acid and carbamazepine in monotherapy. The percentage of major anomaly was 6.8% in all children. Dysmorphic features and dental anomalies were observed more in children exposed especially to valproic acid. There were 26 mothers with two and four mothers with three pregnancies from the same fathers. No correlation was found between the distribution of malformations in recurring pregnancies and AED usage. CONCLUSION Our study has the highest number of dysmorphism examined in literature, found in all the children exposed to valproic acid, which may account for the higher rate of facial dysmorphism and dental anomalies. On lower doses of valproic acid, major malformations are not seen, although the risk increases with polytherapy. Our data also indicate possible effects of genetic and environmental factors on malformations.
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Affiliation(s)
- Betül Tekin Güveli
- Department of Neurology, Bakirkoy Research and Training Hospital for Psychiatry, Neurology, and Neurosurgery, Istanbul University, Istanbul,
Turkey
| | - Rasim Özgür Rosti
- Department of Medical Genetics, Istanbul Faculty of Medicine, Istanbul University, Istanbul,
Turkey
| | - Alper Güzeltaş
- Department of Pediatric Cardiology, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul,
Turkey
| | - Elif Bahar Tuna
- Department of Pedodonty, Faculty of Dentistry, Istanbul University, Istanbul,
Turkey
| | - Dilek Ataklı
- Department of Neurology, Bakirkoy Research and Training Hospital for Psychiatry, Neurology, and Neurosurgery, Istanbul University, Istanbul,
Turkey
| | - Serra Sencer
- Department of Radiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul,
Turkey
| | - Ensar Yekeler
- Department of Radiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul,
Turkey
| | - Hülya Kayserili
- Department of Medical Genetics, Istanbul Faculty of Medicine, Istanbul University, Istanbul,
Turkey
| | - Ahmet Dirican
- Department of Biostatistics, Istanbul Faculty of Medicine, Istanbul University, Istanbul,
Turkey
| | - Nerses Bebek
- Department of Neurology, Istanbul Faculty of Medicine, Istanbul University, Istanbul,
Turkey
| | - Betül Baykan
- Department of Neurology, Istanbul Faculty of Medicine, Istanbul University, Istanbul,
Turkey
| | - Ayşen Gökyiğit
- Department of Neurology, Istanbul Faculty of Medicine, Istanbul University, Istanbul,
Turkey
| | - Candan Gürses
- Department of Neurology, Istanbul Faculty of Medicine, Istanbul University, Istanbul,
Turkey
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Borgelt LM, Hart FM, Bainbridge JL. Epilepsy during pregnancy: focus on management strategies. Int J Womens Health 2016; 8:505-517. [PMID: 27703396 PMCID: PMC5036546 DOI: 10.2147/ijwh.s98973] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
In the US, more than one million women with epilepsy are of childbearing age and have over 20,000 babies each year. Patients with epilepsy who become pregnant are at risk of complications, including changes in seizure frequency, maternal morbidity and mortality, and congenital anomalies due to antiepileptic drug exposure. Appropriate management of epilepsy during pregnancy may involve frequent monitoring of antiepileptic drug serum concentrations, potential preconception switching of antiepileptic medications, making dose adjustments, minimizing peak drug concentration with more frequent dosing, and avoiding potentially teratogenic medications. Ideally, preconception planning will be done to minimize risks to both the mother and fetus during pregnancy. It is important to recognize benefits and risks of current and emerging therapies, especially with revised pregnancy labeling in prescription drug product information. This review will outline risks for epilepsy during pregnancy, review various recommendations from leading organizations, and provide an evidence-based approach for managing patients with epilepsy before, during, and after pregnancy.
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Affiliation(s)
| | - Felecia M Hart
- Departments of Clinical Pharmacy and Neurology, University of Colorado Anschutz Medical Campus, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, CO, USA
| | - Jacquelyn L Bainbridge
- Departments of Clinical Pharmacy and Neurology, University of Colorado Anschutz Medical Campus, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, CO, USA
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Hurault-Delarue C, Damase-Michel C, Finotto L, Guitard C, Vayssière C, Montastruc JL, Montastruc F, Lacroix I. Psychomotor developmental effects of prenatal exposure to psychotropic drugs: a study in EFEMERIS database. Fundam Clin Pharmacol 2016; 30:476-82. [DOI: 10.1111/fcp.12209] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 06/10/2016] [Accepted: 06/13/2016] [Indexed: 01/05/2023]
Affiliation(s)
- Caroline Hurault-Delarue
- Service de Pharmacologie Clinique; CHU de Toulouse; Inserm 1027; Université de Toulouse; 37 allées Jules Guesde 31000 Toulouse France
| | - Christine Damase-Michel
- Service de Pharmacologie Clinique; CHU de Toulouse; Inserm 1027; Université de Toulouse; 37 allées Jules Guesde 31000 Toulouse France
| | - Laurent Finotto
- Caisse Primaire d'Assurance Maladie de la Haute-Garonne; 3 Boulevard du Professeur Léopold Escande 31500 Toulouse France
| | - Claudine Guitard
- Protection Maternelle et Infantile; Conseil Général; 1 Boulevard de la Marquette 31090 Toulouse France
| | - Christophe Vayssière
- Centre de diagnostic anténatal; CHU de Toulouse; Hôpital Paule de Viguier; 330 avenue de Grande Bretagne - TSA 70034 - 31059 Toulouse France
| | - Jean-Louis Montastruc
- Service de Pharmacologie Clinique; CHU de Toulouse; Inserm 1027; Université de Toulouse; 37 allées Jules Guesde 31000 Toulouse France
| | - François Montastruc
- Service de Pharmacologie Clinique; CHU de Toulouse; Inserm 1027; Université de Toulouse; 37 allées Jules Guesde 31000 Toulouse France
| | - Isabelle Lacroix
- Service de Pharmacologie Clinique; CHU de Toulouse; Inserm 1027; Université de Toulouse; 37 allées Jules Guesde 31000 Toulouse France
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Beau AB, Montastruc JL, Lacroix I, Montastruc F, Hurault-Delarue C, Damase-Michel C. Atropinic burden of drugs during pregnancy and psychological development of children: a cohort study in the EFEMERIS database. Br J Clin Pharmacol 2016; 82:478-86. [PMID: 27085086 DOI: 10.1111/bcp.12978] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 03/31/2016] [Accepted: 04/09/2016] [Indexed: 11/30/2022] Open
Abstract
AIM The aim of this study was to evaluate the potential effect of in utero exposure to drugs with atropinic properties on infant psychological development using atropinic burden (AB) scales. METHODS Women from the EFEMERIS cohort, a French database including prescribed and dispensed reimbursed drugs during pregnancy and pregnancy outcomes, delivering between 2004 and 2010 were included (n = 43 740). Each drug was classified as having no (score = 0), few (score = 1) or strong (score = 3) atropinic properties. AB per woman was calculated by adding the atropinic scores of drugs prescribed during pregnancy. AB was categorized as exposure or no exposure. Secondary analyses were performed by dividing the exposure into four scores = [0], [1-8], [9-17] and [≥18]. Data for psychological development were extracted from children's medical certificates completed at 9 and 24 months. RESULTS Thirty-four% (n = 14 925) of women received at least one atropinic drug during pregnancy. Women with AB ≥1 were older and received more drugs during pregnancy than unexposed women. At 24 months, more infants of mothers with AB ≥1 had difficulties to 'name a picture' (ORa , 1.18, 95% CI 1.03, 1.36) and to 'understand instructions' (ORa , 1.61, 95% CI 1.13, , 2.30]) compared with infants of unexposed women. Analyses of four groups of exposure and analyses excluding women receiving psychotropics led to similar results. CONCLUSIONS The study showed significant association between in utero exposure to drugs with atropinic properties and fewer infant cognitive acquisitions at 24 months. Further exploring the potential effect of simultaneous use of drugs with atropinic effects among pregnant women will bring into consideration whether such prescriptions could be inappropriate for the child.
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Affiliation(s)
- Anna-Belle Beau
- Service de Pharmacologie Médicale et Clinique, Centre Midi-Pyrénées de Pharmacovigilance, Pharmacoépidémiologie et d'Informations sur le Médicament, Pharmacopôle Midi-Pyrénées, INSERM U 1027 CHU et Faculté de Médecine de Toulouse, France
| | - Jean-Louis Montastruc
- Service de Pharmacologie Médicale et Clinique, Centre Midi-Pyrénées de Pharmacovigilance, Pharmacoépidémiologie et d'Informations sur le Médicament, Pharmacopôle Midi-Pyrénées, INSERM U 1027 CHU et Faculté de Médecine de Toulouse, France
| | - Isabelle Lacroix
- Service de Pharmacologie Médicale et Clinique, Centre Midi-Pyrénées de Pharmacovigilance, Pharmacoépidémiologie et d'Informations sur le Médicament, Pharmacopôle Midi-Pyrénées, INSERM U 1027 CHU et Faculté de Médecine de Toulouse, France
| | - François Montastruc
- Service de Pharmacologie Médicale et Clinique, Centre Midi-Pyrénées de Pharmacovigilance, Pharmacoépidémiologie et d'Informations sur le Médicament, Pharmacopôle Midi-Pyrénées, INSERM U 1027 CHU et Faculté de Médecine de Toulouse, France
| | - Caroline Hurault-Delarue
- Service de Pharmacologie Médicale et Clinique, Centre Midi-Pyrénées de Pharmacovigilance, Pharmacoépidémiologie et d'Informations sur le Médicament, Pharmacopôle Midi-Pyrénées, INSERM U 1027 CHU et Faculté de Médecine de Toulouse, France
| | - Christine Damase-Michel
- Service de Pharmacologie Médicale et Clinique, Centre Midi-Pyrénées de Pharmacovigilance, Pharmacoépidémiologie et d'Informations sur le Médicament, Pharmacopôle Midi-Pyrénées, INSERM U 1027 CHU et Faculté de Médecine de Toulouse, France
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Kacirova I, Grundmann M, Brozmanova H. Concentrations of carbamazepine and carbamazepine-10,11-epoxide in maternal and umbilical cord blood at birth: Influence of co-administration of valproic acid or enzyme-inducing antiepileptic drugs. Epilepsy Res 2016; 122:84-90. [PMID: 26991491 DOI: 10.1016/j.eplepsyres.2016.02.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 02/03/2016] [Accepted: 02/28/2016] [Indexed: 10/22/2022]
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Goldman AM, LaFrance WC, Benke T, Asato M, Drane D, Pack A, Syed T, Doss R, Lhatoo S, Fureman B, Dingledine R. 2014 Epilepsy Benchmarks Area IV: Limit or Prevent Adverse Consequence of Seizures and Their Treatment Across The Lifespan. Epilepsy Curr 2016; 16:198-205. [PMID: 27330453 PMCID: PMC4913859 DOI: 10.5698/1535-7511-16.3.198] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Alica M. Goldman
- Associate Professor, Department of Neurology, Baylor College of Medicine, One Baylor Plaza, NB222, Houston, TX, USA
| | - W. Curt LaFrance
- Associate Professor, Departments of Neurology and Psychiatry, Alpert Medical School, Brown University, Providence RI 02903-4923 USA
| | - Tim Benke
- Associate Professor, Departments of Pediatrics, Neurology, Pharmacology and Otolaryngology, University of Colorado School of Medicine, Aurora, CO
| | - Miya Asato
- Associate Professor, Pediatrics and Psychiatry, Divisionof Child Neurology, Children's Hospital of Pittsburgh, Pittsburgh, PA
| | - Dan Drane
- Assistant Professor, Departments of Neurology and Pediatrics, Emory University School of Medicine and Department of Neurology, University of Washington School of Medicine
| | - Alison Pack
- Associate Professor of Neurology, Department of Neurology, Columbia University Medical Center, New York, NY
| | - Tanvir Syed
- Assistant Professor of Neurology, University Hospitals Case Medical Center, Cleveland, OH
| | - Robert Doss
- Clinical Neuropsychologist, Minnesota Epilepsy Group, P.A., St. Paul, MN and Department of Neurology, University of Minnesota-Twin Cities, MN
| | - Samden Lhatoo
- Professor and Chair, Department of Neurology, Case Western Reserve University School of Medicine, Cleveland, OH
| | - Brandy Fureman
- Program Director, Channels Synapses and Circuits Cluster, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD
| | - Ray Dingledine
- Professor and Chair, Department of Pharmacology, Emory University, Atlanta GA
| | - for the American Epilepsy Society (AES)/National Institute of Neurological Disorders and Stroke (NINDS) Epilepsy Benchmark Stewards.
- Associate Professor, Department of Neurology, Baylor College of Medicine, One Baylor Plaza, NB222, Houston, TX, USA
- Associate Professor, Departments of Neurology and Psychiatry, Alpert Medical School, Brown University, Providence RI 02903-4923 USA
- Associate Professor, Departments of Pediatrics, Neurology, Pharmacology and Otolaryngology, University of Colorado School of Medicine, Aurora, CO
- Associate Professor, Pediatrics and Psychiatry, Divisionof Child Neurology, Children's Hospital of Pittsburgh, Pittsburgh, PA
- Assistant Professor, Departments of Neurology and Pediatrics, Emory University School of Medicine and Department of Neurology, University of Washington School of Medicine
- Associate Professor of Neurology, Department of Neurology, Columbia University Medical Center, New York, NY
- Assistant Professor of Neurology, University Hospitals Case Medical Center, Cleveland, OH
- Clinical Neuropsychologist, Minnesota Epilepsy Group, P.A., St. Paul, MN and Department of Neurology, University of Minnesota-Twin Cities, MN
- Professor and Chair, Department of Neurology, Case Western Reserve University School of Medicine, Cleveland, OH
- Program Director, Channels Synapses and Circuits Cluster, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD
- Professor and Chair, Department of Pharmacology, Emory University, Atlanta GA
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Frankel S, Medvedeva N, Gutherz S, Kulick C, Kondratyev A, Forcelli PA. Comparison of the long-term behavioral effects of neonatal exposure to retigabine or phenobarbital in rats. Epilepsy Behav 2016; 57:34-40. [PMID: 26921596 PMCID: PMC4828307 DOI: 10.1016/j.yebeh.2016.01.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 01/15/2016] [Accepted: 01/18/2016] [Indexed: 01/18/2023]
Abstract
Anticonvulsant drugs, when given during vulnerable periods of brain development, can have long-lasting consequences on nervous system function. In rats, the second postnatal week approximately corresponds to the late third trimester of gestation/early infancy in humans. Exposure to phenobarbital during this period has been associated with deficits in learning and memory, anxiety-like behavior, and social behavior, among other domains. Phenobarbital is the most common anticonvulsant drug used in neonatology. Several other drugs, such as lamotrigine, phenytoin, and clonazepam, have also been reported to trigger behavioral changes. A new generation anticonvulsant drug, retigabine, has not previously been evaluated for long-term effects on behavior. Retigabine acts as an activator of KCNQ channels, a mechanism that is unique among anticonvulsants. Here, we examined the effects retigabine exposure from postnatal day (P)7 to P14 on behavior in adult rats. We compared these effects with those produced by phenobarbital (as a positive control) and saline (as a negative control). Motor behavior was assessed by using the open field and rotarod, anxiety-like behavior by the open field, elevated plus maze, and light-dark transition task, and learning/memory by the passive avoidance task; social interactions were assessed in same-treatment pairs, and nociceptive sensitivity was assessed via the tail-flick assay. Motor behavior was unaltered by exposure to either drug. We found that retigabine exposure and phenobarbital exposure both induced increased anxiety-like behavior in adult animals. Phenobarbital, but not retigabine, exposure impaired learning and memory. These drugs also differed in their effects on social behavior, with retigabine-exposed animals displaying greater social interaction than phenobarbital-exposed animals. These results indicate that neonatal retigabine induces a subset of behavioral alterations previously described for other anticonvulsant drugs and extend our knowledge of drug-induced behavioral teratogenesis to a new mechanism of anticonvulsant action.
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Affiliation(s)
- Sari Frankel
- Department of Pharmacology & Physiology, Georgetown University School of Medicine, United States
| | - Natalia Medvedeva
- Department of Pharmacology & Physiology, Georgetown University School of Medicine, United States
| | - Samuel Gutherz
- Department of Pharmacology & Physiology, Georgetown University School of Medicine, United States
| | - Catherine Kulick
- Department of Pharmacology & Physiology, Georgetown University School of Medicine, United States
| | - Alexei Kondratyev
- Department of Pharmacology & Physiology, Georgetown University School of Medicine, United States
| | - Patrick A Forcelli
- Department of Pharmacology & Physiology, Georgetown University School of Medicine, United States.
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Hurault-Delarue C, Chouquet C, Savy N, Lacroix I, Beau AB, Montastruc JL, Damase-Michel C. How to take into account exposure to drugs over time in pharmacoepidemiology studies of pregnant women? Pharmacoepidemiol Drug Saf 2016; 25:770-7. [PMID: 27018245 DOI: 10.1002/pds.4000] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 12/18/2015] [Accepted: 02/21/2016] [Indexed: 11/11/2022]
Abstract
PURPOSE The aim of this study was to develop a new pharmacoepidemiological method to take into account intensity and evolution of drug exposure, applied to pregnant women. METHODS Pregnant women were classified according to their drug exposure, in three steps: Conversion of prescription data into exposure variables (using ATC-DDD) Construction of individual trajectories of exposure Clustering of individual trajectories of exposure (using the R package Kml) We applied this method to psychotropic drugs prescribed during pregnancy. The present study involved women, included in the EFEMERIS database, who gave birth in Haute-Garonne (France) between 2004 and 2010 (N = 54 918). RESULTS Exposure to psychotropic drugs of 3708 pregnant women was studied (6.7%). The pregnant women could be classified into four groups with homogeneous trajectories of exposure: low constant exposure during pregnancy (Cluster A: 70.8% of women); decreasing exposure during the first trimester of pregnancy and low constant exposure thereafter (Cluster B: 19.6%); moderate constant exposure (Cluster C: 8.2%); and high albeit decreasing exposure (Cluster D: 1.4%). CONCLUSIONS The proposed new method enabled us to describe more precisely women's exposure to drugs during pregnancy, and to distinguish different profiles of exposure. This method could be used to investigate specific outcomes related to duration and intensity of drug exposure during pregnancy, and also to study adverse drug reactions throughout life. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Caroline Hurault-Delarue
- Laboratoire de Pharmacologie Médicale et Clinique, Centre Midi-Pyrénées de PharmacoVigilance, de Pharmacoépidémiologie et d'Informations sur le Médicament, Pharmacopôle Midi-Pyrénées, Equipe de Pharmacoépidémiologie, INSERM U1027, Centre Hospitalier Universitaire, Toulouse, France
| | - Cécile Chouquet
- Laboratoire de Pharmacologie Médicale et Clinique, Centre Midi-Pyrénées de PharmacoVigilance, de Pharmacoépidémiologie et d'Informations sur le Médicament, Pharmacopôle Midi-Pyrénées, Equipe de Pharmacoépidémiologie, INSERM U1027, Centre Hospitalier Universitaire, Toulouse, France
| | - Nicolas Savy
- Laboratoire de Pharmacologie Médicale et Clinique, Centre Midi-Pyrénées de PharmacoVigilance, de Pharmacoépidémiologie et d'Informations sur le Médicament, Pharmacopôle Midi-Pyrénées, Equipe de Pharmacoépidémiologie, INSERM U1027, Centre Hospitalier Universitaire, Toulouse, France
| | - Isabelle Lacroix
- Laboratoire de Pharmacologie Médicale et Clinique, Centre Midi-Pyrénées de PharmacoVigilance, de Pharmacoépidémiologie et d'Informations sur le Médicament, Pharmacopôle Midi-Pyrénées, Equipe de Pharmacoépidémiologie, INSERM U1027, Centre Hospitalier Universitaire, Toulouse, France
| | - Anna-Belle Beau
- Laboratoire de Pharmacologie Médicale et Clinique, Centre Midi-Pyrénées de PharmacoVigilance, de Pharmacoépidémiologie et d'Informations sur le Médicament, Pharmacopôle Midi-Pyrénées, Equipe de Pharmacoépidémiologie, INSERM U1027, Centre Hospitalier Universitaire, Toulouse, France
| | - Jean-Louis Montastruc
- Laboratoire de Pharmacologie Médicale et Clinique, Centre Midi-Pyrénées de PharmacoVigilance, de Pharmacoépidémiologie et d'Informations sur le Médicament, Pharmacopôle Midi-Pyrénées, Equipe de Pharmacoépidémiologie, INSERM U1027, Centre Hospitalier Universitaire, Toulouse, France
| | - Christine Damase-Michel
- Laboratoire de Pharmacologie Médicale et Clinique, Centre Midi-Pyrénées de PharmacoVigilance, de Pharmacoépidémiologie et d'Informations sur le Médicament, Pharmacopôle Midi-Pyrénées, Equipe de Pharmacoépidémiologie, INSERM U1027, Centre Hospitalier Universitaire, Toulouse, France
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Abstract
Epilepsy and antiepileptic drugs affect the menstrual cycle, aspects of contraception, reproductive health, pregnancy, and menopause through alteration of sex steroid hormone pathways. Sex steroid hormones often have an effect on seizure frequency and may alter the level of some antiepileptic drugs. Approximately one-third of women experience an increase in perimenstrual and/or periovulatory seizure frequency. Some women experience an increase in seizure frequency during pregnancy. Balancing maternal seizure control and the risk of congenital malformations associated with fetal antiepileptic drug exposure may be challenging. Some antiepileptic drugs are associated with cognitive and behavioral teratogenesis and should be avoided if possible during pregnancy.
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Affiliation(s)
- Naymeé J Vélez-Ruiz
- Division of Epilepsy, Department of Neurology, University of Miami, 1120 Northwest, 14th Street, Suite 1329, Miami, FL 33136, USA.
| | - Page B Pennell
- Division of Epilepsy, Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Harvard University, 75 Francis Street, Boston, MA 02115, USA; Division of Women's Health, Brigham and Women's Hospital, Harvard Medical School, Harvard University, 75 Francis Street, Boston, MA 02115, USA
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