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1.
Sci Adv ; 10(14): eadl2764, 2024 Apr 05.
Article in English | MEDLINE | ID: mdl-38579001

ABSTRACT

Despite seizure control by early high-dose pyridoxine (vitamin B6) treatment, at least 75% of pyridoxine-dependent epilepsy (PDE) patients with ALDH7A1 mutation still suffer from intellectual disability. It points to a need for additional therapeutic interventions for PDE beyond pyridoxine treatment, which provokes us to investigate the mechanisms underlying the impairment of brain hemostasis by ALDH7A1 deficiency. In this study, we show that ALDH7A1-deficient mice with seizure control exhibit altered adult hippocampal neurogenesis and impaired cognitive functions. Mechanistically, ALDH7A1 deficiency leads to the accumulation of toxic lysine catabolism intermediates, α-aminoadipic-δ-semialdehyde and its cyclic form, δ-1-piperideine-6-carboxylate, which in turn impair de novo pyrimidine biosynthesis and inhibit NSC proliferation and differentiation. Notably, supplementation of pyrimidines rescues abnormal neurogenesis and cognitive impairment in ALDH7A1-deficient adult mice. Therefore, our findings not only define the important role of ALDH7A1 in the regulation of adult hippocampal neurogenesis but also provide a potential therapeutic intervention to ameliorate the defective mental capacities in PDE patients with seizure control.


Subject(s)
2-Aminoadipic Acid/analogs & derivatives , Aldehyde Dehydrogenase , Epilepsy , Pyridoxine , Humans , Animals , Mice , Pyridoxine/pharmacology , Seizures/drug therapy , Seizures/etiology , Pyrimidines/pharmacology , Cognition
2.
J Mol Med (Berl) ; 102(6): 761-771, 2024 06.
Article in English | MEDLINE | ID: mdl-38653825

ABSTRACT

Epilepsy is a neurological disorder characterized by spontaneous and recurring seizures. It poses significant therapeutic challenges due to diverse etiology, pathobiology, and pharmacotherapy-resistant variants. The anticonvulsive effects of herbal leads with biocompatibility and toxicity considerations have attracted much interest, inspiring mechanistic analysis with the view of their use for engagement of new targets and combination with antiseizure pharmacotherapies. This article presents a comprehensive overview of the key molecular players and putative action mechanisms of the most common antiepileptic herbals demonstrated in tissue culture and preclinical models. From the review of the literature, it emerges that their effects are mediated via five distinct mechanisms: (1) reduction of membrane excitability through inhibition of cation channels, (2) improvement of mitochondrial functions with antioxidant effects, (3) enhancement in synaptic transmission mediated by GABAA receptors, (4) improvement of immune response with anti-inflammatory action, and (5) suppression of protein synthesis and metabolism. While some of the primary targets and action mechanisms of herbal anticonvulsants (1, 3) are shared with antiseizure pharmacotherapies, herbal leads also engage with distinct mechanisms (2, 4, and 5), suggesting new drug targets and opportunities for their integration with antiseizure medications. Addressing outstanding questions through research and in silico modeling should facilitate the future use of herbals as auxiliary therapy in epilepsy and guide the development of treatment of pharmacoresistant seizures through rigorous trials and regulatory approval.


Subject(s)
Anticonvulsants , Humans , Anticonvulsants/therapeutic use , Anticonvulsants/pharmacology , Animals , Drug Resistant Epilepsy/drug therapy , Drug Resistant Epilepsy/metabolism , Epilepsy/drug therapy , Epilepsy/metabolism
3.
Zhen Ci Yan Jiu ; 49(4): 415-423, 2024 Apr 25.
Article in English, Chinese | MEDLINE | ID: mdl-38649211

ABSTRACT

OBJECTIVES: To explore the mechanism of core points in acupuncture and moxibustion treatment for epilepsy by using data mining technique, so as to provide a reference for clinical practice and experimental research. METHODS: The data comes from relevant documents collected from CNKI, Wanfang, SinoMed, VIP, PubMed, Embase, Cochrane Library, EBSCO, Web of Science databases. The selected acupoints were analyzed in descriptive statistics, high-frequency acupoints group and core acupoint prescription. Further, potential target mining, "core acupoint prescription-target-epilepsy" network construction, protein-protein interactions (PPI) network establishment and core target extraction, gene ontology (GO) and KEGG gene enrichment analysis of the core acupoint prescription were carried out to predict its anti-epileptic potential mechanism. RESULTS: A total of 122 acupoint prescriptions were included. The core acupoint prescriptions were Baihui (GV20), Hegu (LI4), Neiguan (PC6), Shuigou (GV26) and Taichong (LR3). 277 potential targets were identified, among which 134 were shared with epilepsy. The core targets were extracted by PPI network topology analysis, including signal transducer and activator of transcription 3, tumor necrosis factor (TNF), interleukin (IL)-6, protein kinase B1, c-Jun N-terminal kinase, brain-derived neurotrophic factor, tumor protein 53, vascular endothelial growth factor A, Caspase-3, epidermal growth factor receptor, etc. The main anti-epileptic pathways of the core acupoints were predicted by KEGG enrichment, including lipid and atherosclerosis, neurodegeneration, phosphatidylinositol-3-kinase/protein B kinase signaling pathway, mitogen-activated protein kinase signaling pathway, cyclic adenosine monophosphate signaling pathway, TNF signaling pathway, IL-17 signaling pathway, hypoxia-inducible factor-1 signaling pathway, apoptosis, etc., involving neuronal death, synaptic plasticity, oxidative stress, inflammation and other related biological process. CONCLUSIONS: The core acupoint prescription of acupuncture and moxibustion intervention for epilepsy can act on multiple targets and multiple pathways to exert anti-epileptic effects, which can provide a theoretical basis for further clinical application and mechanism research.


Subject(s)
Acupuncture Points , Acupuncture Therapy , Data Mining , Epilepsy , Moxibustion , Humans , Epilepsy/therapy , Epilepsy/genetics , Epilepsy/metabolism , Protein Interaction Maps , Signal Transduction
4.
Neurochem Int ; 176: 105725, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38561151

ABSTRACT

Epilepsy constitutes a global health concern, affecting millions of individuals and approximately one-third of patients exhibit drug resistance. Recent investigations have revealed alterations in cerebral iron content in both epilepsy patients and animal models. However, the extant literature lacks a comprehensive exploration into the ramifications of modulating iron homeostasis as an intervention in epilepsy. This study investigated the impact of deferasirox, a iron ion chelator, on epilepsy. This study unequivocally substantiated the antiepileptic efficacy of deferasirox in a kainic acid-induced epilepsy model. Furthermore, deferasirox administration mitigated seizure susceptibility in a pentylenetetrazol-induced kindling model. Conversely, the augmentation of iron levels through supplementation has emerged as a potential exacerbating factor in the precipitating onset of epilepsy. Intriguingly, our investigation revealed a hitherto unreported discovery: ITPRIP was identified as a pivotal modulator of excitatory synaptic transmission, regulating seizures in response to deferasirox treatment. In summary, our findings indicate that deferasirox exerts its antiepileptic effects through the precise targeting of ITPRIP and amelioration of cerebral iron homeostasis, suggesting that deferasirox is a promising and novel therapeutic avenue for interventions in epilepsy.


Subject(s)
Anticonvulsants , Brain , Deferasirox , Epilepsy , Iron Chelating Agents , Iron , Membrane Proteins , Animals , Male , Mice , Anticonvulsants/pharmacology , Anticonvulsants/therapeutic use , Brain/drug effects , Brain/metabolism , Deferasirox/pharmacology , Epilepsy/drug therapy , Epilepsy/metabolism , Homeostasis/drug effects , Homeostasis/physiology , Iron/metabolism , Iron Chelating Agents/pharmacology , Iron Chelating Agents/therapeutic use , Kindling, Neurologic/drug effects , Pentylenetetrazole/toxicity , Rats, Sprague-Dawley , Membrane Proteins/drug effects , Membrane Proteins/metabolism
5.
Int J Mol Sci ; 25(5)2024 Mar 04.
Article in English | MEDLINE | ID: mdl-38474238

ABSTRACT

The zebrafish model has emerged as a reference tool for phenotypic drug screening. An increasing number of molecules have been brought from bench to bedside thanks to zebrafish-based assays over the last decade. The high homology between the zebrafish and the human genomes facilitates the generation of zebrafish lines carrying loss-of-function mutations in disease-relevant genes; nonetheless, even using this alternative model, the establishment of isogenic mutant lines requires a long generation time and an elevated number of animals. In this study, we developed a zebrafish-based high-throughput platform for the generation of F0 knock-out (KO) models and the screening of neuroactive compounds. We show that the simultaneous inactivation of a reporter gene (tyrosinase) and a second gene of interest allows the phenotypic selection of F0 somatic mutants (crispants) carrying the highest rates of mutations in both loci. As a proof of principle, we targeted genes associated with neurodevelopmental disorders and we efficiently generated de facto F0 mutants in seven genes involved in childhood epilepsy. We employed a high-throughput multiparametric behavioral analysis to characterize the response of these KO models to an epileptogenic stimulus, making it possible to employ kinematic parameters to identify seizure-like events. The combination of these co-injection, screening and phenotyping methods allowed us to generate crispants recapitulating epilepsy features and to test the efficacy of compounds already during the first days post fertilization. Since the strategy can be applied to a wide range of indications, this study paves the ground for high-throughput drug discovery and promotes the use of zebrafish in personalized medicine and neurotoxicity assessment.


Subject(s)
Epilepsy , Zebrafish , Animals , Humans , Zebrafish/genetics , Drug Evaluation, Preclinical , Epilepsy/genetics , Mutation , CRISPR-Cas Systems
6.
Epilepsia ; 65(6): 1698-1708, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38554037

ABSTRACT

OBJECTIVE: This study was undertaken to characterize the use of higher doses of folic acid (≥1 mg daily) in relation to pregnancy in Denmark, Norway, and Sweden in women with epilepsy treated with antiseizure medication (ASM). METHODS: In this observational study, we used data from national medical birth, patient, and prescription registers in Denmark, Norway, and Sweden to retrospectively identify pregnancies in women with epilepsy treated with ASM from 2006 to 2017. The proportion of higher dose folic acid supplementation in pregnancies among women receiving ASM for epilepsy was calculated according to country of origin, time period, and type of ASM. Logistic regression with restricted cubic splines was used to model country-specific time trends. RESULTS: Among a total of 2 748 882 pregnancies, we identified 8695 (.3%) pregnancies after restricting the population to women with ASM-treated epilepsy. A prescription for higher dose folic acid was filled in 4719 (54.3%) of these pregnancies. The proportion supplemented with higher dose folic acid was highest in Sweden (74.3%) and lower in Norway (41.4%) and Denmark (34.3%). Furthermore, we observed a decreasing trend of higher dose folic acid use in Denmark and Norway from year 2012 to 2017. Among those who used higher dose folic acid, 42% did not start preconception supplementation with higher dose folic acid. SIGNIFICANCE: Supplementation with higher dose folic acid occurred in approximately half of pregnancies in women with ASM-treated epilepsy, with many not starting supplementation until after becoming pregnant. Considerable variability was observed in the use of higher dose folic acid across the countries, despite similar population characteristics and health care systems. Future guidelines should be simplified with clear recommendations developed in a collaborative manner by relevant specialists including neurologists, obstetricians, pediatricians, and public health specialists to enhance real-world applicability.


Subject(s)
Anticonvulsants , Epilepsy , Folic Acid , Practice Patterns, Physicians' , Pregnancy Complications , Humans , Female , Folic Acid/administration & dosage , Folic Acid/therapeutic use , Epilepsy/drug therapy , Anticonvulsants/therapeutic use , Anticonvulsants/administration & dosage , Pregnancy , Adult , Norway/epidemiology , Denmark/epidemiology , Practice Patterns, Physicians'/statistics & numerical data , Practice Patterns, Physicians'/trends , Pregnancy Complications/drug therapy , Sweden/epidemiology , Retrospective Studies , Young Adult , Dietary Supplements
7.
Basic Clin Pharmacol Toxicol ; 134(5): 574-601, 2024 May.
Article in English | MEDLINE | ID: mdl-38477419

ABSTRACT

Studies have demonstrated the neuroprotective effect of cannabidiol (CBD) and other Cannabis sativa L. derivatives on diseases of the central nervous system caused by their direct or indirect interaction with endocannabinoid system-related receptors and other molecular targets, such as the 5-HT1A receptor, which is a potential pharmacological target of CBD. Interestingly, CBD binding with the 5-HT1A receptor may be suitable for the treatment of epilepsies, parkinsonian syndromes and amyotrophic lateral sclerosis, in which the 5-HT1A serotonergic receptor plays a key role. The aim of this review was to provide an overview of cannabinoid effects on neurological disorders, such as epilepsy, multiple sclerosis and Parkinson's diseases, and discuss their possible mechanism of action, highlighting interactions with molecular targets and the potential neuroprotective effects of phytocannabinoids. CBD has been shown to have significant therapeutic effects on epilepsy and Parkinson's disease, while nabiximols contribute to a reduction in spasticity and are a frequent option for the treatment of multiple sclerosis. Although there are multiple theories on the therapeutic potential of cannabinoids for neurological disorders, substantially greater progress in the search for strong scientific evidence of their pharmacological effectiveness is needed.


Subject(s)
Cannabidiol , Cannabinoids , Epilepsy , Mental Disorders , Multiple Sclerosis , Parkinson Disease , Humans , Cannabidiol/pharmacology , Cannabidiol/therapeutic use , Parkinson Disease/drug therapy , Multiple Sclerosis/drug therapy , Receptor, Serotonin, 5-HT1A/therapeutic use , Cannabinoids/pharmacology , Cannabinoids/therapeutic use , Epilepsy/drug therapy , Mental Disorders/drug therapy , Comorbidity
8.
Rev Neurol (Paris) ; 180(4): 326-347, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38503588

ABSTRACT

The effect of meditation on brain activity has been the topic of many studies in healthy subjects and in patients suffering from chronic diseases. These effects are either explored during meditation practice (state effects) or as a longer-term result of meditation training during the resting-state (trait). The topic of this article is to first review these findings by focusing on electroencephalography (EEG) changes in healthy subjects with or without experience in meditation. Modifications in EEG baseline rhythms, functional connectivity and advanced nonlinear parameters are discussed in regard to feasibility in clinical applications. Secondly, we provide a state-of-the-art of studies that proposed meditative practices as a complementary therapy in patients with epilepsy, in whom anxiety and depressive symptoms are prevalent. In these studies, the effects of standardized meditation programs including elements of traditional meditation practices such as mindfulness, loving-kindness and compassion are explored both at the level of psychological functioning and on the occurrence of seizures. Lastly, preliminary results are given regarding our ongoing study, the aim of which is to quantify the effects of a mindfulness self-compassion (MSC) practice on interictal and ictal epileptic activity. Feasibility, difficulties, and prospects of this study are discussed.


Subject(s)
Electroencephalography , Epilepsy , Meditation , Humans , Meditation/psychology , Epilepsy/therapy , Epilepsy/psychology , Epilepsy/physiopathology , Brain/physiopathology , Brain/physiology , Healthy Volunteers , Mindfulness/methods , Empathy/physiology
9.
Epilepsy Behav ; 154: 109761, 2024 May.
Article in English | MEDLINE | ID: mdl-38547768

ABSTRACT

OBJECTIVE: The aim of this research is to examine the usage of Complementary and Integrated Medicine (CIM) in individuals with epilepsy and the impact of CIM usage on medication adherence. MATERIALS AND METHODS: This descriptive and cross-sectional study was conducted in a university hospital in northern Turkey between July and October 2023, involving 101 individuals with epilepsy (PWE). Descriptive information forms and the Morisky Medication Adherence Scale-4 (MMS-4) were used as data collection tools. Descriptive statistics, t-tests, ANOVA, and post-hoc LSD analyses were employed for data evaluation. RESULTS: The participants consisted of 65.3 % males, 25.7 % were not working due to epilepsy, and 61.4 % with generalized epilepsy. The average MMS-4 score was found to be 3.08 ± 0.96. MMS-4 scores showed significant differences based on epilepsy type (F = 3.998, p = 0.021; η2 = 0.07). 76.2 % (n = 21) of the participants who used at least one CIM technique preferred "having a religious person read a prayer." CONCLUSION: Medication adherence in PWE was at a moderate level. Individuals with focal and secondary generalized epilepsy showed better medication adherence compared to those with generalized types. Of those participant who used at least one CIM technique to improve their general health or control seizures, the most common was "having a religious person read a prayer."


Subject(s)
Anticonvulsants , Complementary Therapies , Epilepsy , Medication Adherence , Humans , Male , Female , Medication Adherence/statistics & numerical data , Medication Adherence/psychology , Adult , Epilepsy/drug therapy , Epilepsy/psychology , Cross-Sectional Studies , Middle Aged , Young Adult , Anticonvulsants/therapeutic use , Turkey , Adolescent , Aged
10.
Int Ophthalmol ; 44(1): 28, 2024 Feb 08.
Article in English | MEDLINE | ID: mdl-38329604

ABSTRACT

PURPOSE: To evaluate changes in posterior segment parameters in pediatric patients with epilepsy using sodium valproate or levetiracetam monotherapy for at least 12 months. METHODS: This study included 45 children with generalized epilepsy aged 6-17 years and 32 age- and gender-matched healthy subjects. The patients were assigned to three groups: Group 1 included patients using valproate monotherapy at a dose of 20-40 mg/kg/day, group 2 included patients using levetiracetam monotherapy at a dose of 20-40 mg/kg/day, and group 3 consisted of healthy controls. Peripapillary retinal nerve fiber layer (RNFL) and macular ganglion cell layer-inner plexiform layer (mGCIPL) thicknesses were measured using spectral-domain optical coherence tomography (OCT). RESULTS: No significant differences were noted between the groups regarding age, gender distribution, visual acuity, spherical equivalent, and intraocular pressure (p > 0.05). The average and temporal, nasal, and superior quadrants RNFL values were significantly thinner in group 1 than in group 2 (p = 0.001, p = 0.023, p = 0.011, and p = 0.001, respectively) and group 3 (p < 0.001, p = 0.032, p < 0.001, and p = 0.001, respectively). The OCT parameters were similar in groups 2 and 3 (p > 0.05). A negative correlation was observed in group 1 between only the average mGCIPL and the treatment dose (r = - 0.501). In group 2, no significant correlation was found between OCT parameters and the duration of epilepsy treatment, dose of treatment, and age at treatment onset values (p > 0.05). CONCLUSION: These findings support that there is an association between sodium valproate treatment and the reduction of RNFL thickness in epilepsy. Levetiracetam treatment appears to be a safe option, but care should be taken regarding ocular side effects that may occur with long-term and high-dose use of sodium valproate.


Subject(s)
Epilepsy , Valproic Acid , Humans , Child , Valproic Acid/therapeutic use , Levetiracetam , Epilepsy/drug therapy , Retina , Healthy Volunteers
11.
J Alzheimers Dis ; 98(1): 275-285, 2024.
Article in English | MEDLINE | ID: mdl-38393916

ABSTRACT

Background: While many studies focus on the prognosis of individual neurological diseases, very few comprehensively compare and analyze real-world data of these diseases. Objective: To address this gap in knowledge, in this study, we comprehensively analyzed the real-life data of patients with neurological diseases. Methods: We prospectively enrolled patients with neurological diseases at three hospitals from December 1, 2016 to September 30, 2020. Neurological diseases were classified into nine groups: Dementia, Cerebrovascular disease, Parkinson's and related, Functional, Spinocerebellar degeneration, Neuroimmune, Epilepsy, Muscle dystrophy disease, and Hypertension. Patients were followed up for three years, and their prognosis and evaluation of their cognitive function served as the endpoint. Results: A total of 426 patients were finally enrolled. Both mortality and cognitive function differed among the neurological disease categories. After 3 years, mortality was highest in the Dementia (25.5%), Parkinson's and related (21.6%), and Spinocerebellar degeneration (35.3%) groups while the cognitive function of patients in these three groups was significantly lowest. Conclusions: When the neurological diseases were holistically observed, both mortality and cognitive function of the Dementia, Parkinson's and related, and Spinocerebellar degeneration groups were significantly worse than the remaining diseases.


Subject(s)
Alzheimer Disease , Dementia , Epilepsy , Parkinson Disease , Spinocerebellar Degenerations , Humans , Parkinson Disease/psychology , Cohort Studies , Cognition , Prognosis , Dementia/diagnosis
12.
Nat Commun ; 15(1): 1249, 2024 Feb 10.
Article in English | MEDLINE | ID: mdl-38341419

ABSTRACT

Lateral hypothalamic (LH) hypocretin/orexin neurons (HONs) control brain-wide electrical excitation. Abnormally high excitation produces epileptic seizures, which affect millions of people and need better treatments. HON population activity spikes from minute to minute, but the role of this in seizures is unknown. Here, we describe correlative and causal links between HON activity spikes and seizures. Applying temporally-targeted HON recordings and optogenetic silencing to a male mouse model of acute epilepsy, we found that pre-seizure HON activity predicts and controls the electrophysiology and behavioral pathology of subsequent seizures. No such links were detected for HON activity during seizures. Having thus defined the time window where HONs influence seizures, we targeted it with LH deep brain stimulation (DBS), which inhibited HON population activity, and produced seizure protection. Collectively, these results uncover a feature of brain activity linked to seizures, and demonstrate a proof-of-concept treatment that controls this feature and alleviates epilepsy.


Subject(s)
Epilepsy , Seizures , Mice , Animals , Male , Humans , Orexins/genetics , Seizures/prevention & control , Epilepsy/genetics , Epilepsy/therapy , Neurons/physiology , Hypothalamus
13.
Mar Drugs ; 22(2)2024 Feb 06.
Article in English | MEDLINE | ID: mdl-38393051

ABSTRACT

The products of oleaginous microbes, primarily lipids, have gained tremendous attention for their health benefits in food-based applications as supplements. However, this emerging biotechnology also offers a neuroprotective treatment/management potential for various diseases that are seldom discussed. Essential fatty acids, such as DHA, are known to make up the majority of brain phospholipid membranes and are integral to cognitive function, which forms an important defense against Alzheimer's disease. Omega-3 polyunsaturated fatty acids have also been shown to reduce recurrent epilepsy seizures and have been used in brain cancer therapies. The ratio of omega-3 to omega-6 PUFAs is essential in maintaining physiological function. Furthermore, lipids have also been employed as an effective vehicle to deliver drugs for the treatment of diseases. Lipid nanoparticle technology, used in pharmaceuticals and cosmeceuticals, has recently emerged as a biocompatible, biodegradable, low-toxicity, and high-stability means for drug delivery to address the drawbacks associated with traditional medicine delivery methods. This review aims to highlight the dual benefit that lipids offer in maintaining good health for disease prevention and in the treatment of neurological diseases.


Subject(s)
Epilepsy , Fatty Acids, Omega-3 , Humans , Fatty Acids, Omega-3/pharmacology , Fatty Acids, Omega-3/therapeutic use , Dietary Supplements , Brain , Phospholipids/therapeutic use , Epilepsy/drug therapy
14.
Sci Rep ; 14(1): 3357, 2024 02 09.
Article in English | MEDLINE | ID: mdl-38336906

ABSTRACT

Mutations in the KCNT1 potassium channel cause severe forms of epilepsy which are poorly controlled with current treatments. In vitro studies have shown that KCNT1-epilepsy mutations are gain of function, significantly increasing K+ current amplitudes. To investigate if Drosophila can be used to model human KCNT1 epilepsy, we generated Drosophila melanogaster lines carrying human KCNT1 with the patient mutation G288S, R398Q or R928C. Expression of each mutant channel in GABAergic neurons gave a seizure phenotype which responded either positively or negatively to 5 frontline epilepsy drugs most commonly administered to patients with KCNT1-epilepsy, often with little or no improvement of seizures. Cannabidiol showed the greatest reduction of the seizure phenotype while some drugs increased the seizure phenotype. Our study shows that Drosophila has the potential to model human KCNT1- epilepsy and can be used as a tool to assess new treatments for KCNT1- epilepsy.


Subject(s)
Drosophila , Epilepsy , Potassium Channels, Sodium-Activated , Animals , Humans , Drosophila/genetics , Drosophila melanogaster/genetics , Drug Evaluation, Preclinical , Epilepsy/drug therapy , Epilepsy/genetics , Models, Animal , Mutation , Nerve Tissue Proteins/genetics , Potassium Channels, Sodium-Activated/genetics , Seizures/drug therapy , Seizures/genetics , Transgenes
15.
Biomed Pharmacother ; 172: 116212, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38364734

ABSTRACT

Plant polysaccharides have biological activities in the brain and those obtained from Genipa americana leaves present antioxidant and anticonvulsant effects in the mice model of pentylenetetrazole (PTZ)-induced acute seizures. This study aimed to evaluate the polysaccharide-rich extract of Genipa americana leaves (PRE-Ga) in the models of acute seizures and chronic epilepsy (kindling) induced by PTZ. In the acute seizure model, male Swiss mice (25-35 g) received PRE-Ga (1 or 9 mg/kg; intraperitoneal- IP), alone or associated with diazepam (0.01 mg/kg), 30 min before induction of seizures with PTZ (70 mg/kg; IP). In the chronic epilepsy model, seizures were induced by PTZ (40 mg/kg) 30 min after treatment and in alternated days up to 30 days and evaluated by video. Brain areas (prefrontal cortex, hippocampus, striatum) were assessed for inflammatory and oxidative stress markers. Diazepam associated to PRE-Ga (9 mg/kg; i.p.) increased the latency of seizures in acute (222.4 ± 47.57 vs. saline: 62.00 ± 4.709 s) and chronic models (6.267 ± 0.502 vs. saline: 4.067 ± 0.407 s). In hippocampus, PRE-Ga (9 mg/kg) inhibited TNF-α (105.9 ± 5.38 vs. PTZ: 133.5 ± 7.62 pmol/g) and malondialdehyde (MDA) (473.6 ± 60.51) in the chronic model. PTZ increased glial fibrillar acid proteins (GFAP) and Iba-1 in hippocampus, which was reversed by PRE-Ga (GFAP: 1.9 ± 0.23 vs PTZ: 3.1 ± 1.3 and Iba-1: 2.2 ± 0.8 vs PTZ: 3.2 ± 1.4). PRE-Ga presents neuroprotector effect in the mice model of epilepsy induced by pentylenetetrazole reducing seizures, gliosis, inflammatory cytokines and oxidative stress.


Subject(s)
Epilepsy , Pentylenetetrazole , Animals , Mice , Epilepsy/chemically induced , Epilepsy/drug therapy , Epilepsy/prevention & control , Seizures/chemically induced , Seizures/drug therapy , Seizures/prevention & control , Oxidative Stress , Diazepam/pharmacology , Diazepam/therapeutic use , Disease Models, Animal , Glial Fibrillary Acidic Protein , Plant Extracts/pharmacology , Plant Extracts/therapeutic use
16.
Clin Neurol Neurosurg ; 237: 108151, 2024 02.
Article in English | MEDLINE | ID: mdl-38340429

ABSTRACT

OBJECTIVE: Surgical intervention for drug-resistant epilepsy (DRE) is a safe and efficacious evidence-based treatment. Yet, neurologists have historically revealed hesitance in referring patients for surgical evaluations. The present study surveyed general neurologists and epilepsy specialists to assess their views and process in referring patients for specialized epilepsy care and epilepsy surgery. METHODS: A 14-item survey assessing epilepsy referrals and views of epilepsy surgery was distributed to all neurologists currently practicing in a large national integrated health system using REDCap. Responses were qualitatively analyzed and differences between general neurologists and epileptologists were assessed using chi-squared tests. RESULTS: In total, 100 responses were received from 67 general neurologists and 33 epileptologists with several similarities and differences emerging between the two groups. Both groups endorsed surgery and neuromodulation as treatment options in DRE, felt that seizure frequency rather than duration was relevant in considering epilepsy surgery, and indicated patient preference as the largest barrier limiting epilepsy surgery. General neurologists were more likely to require ≥ 3 ASMs to fail to diagnose DRE compared to epileptologists (45% vs. 15%, p < 0.01) who more often required ≥ 2 ASMs to fail. Epileptologists were also more likely than neurologists to try a new ASM (75.8% vs. 53.7%, p < 0.05) or optimize the current ASM (75.8% vs. 49.3%, p < 0.05) in DRE. General neurologists were more likely to consider epilepsy surgery to be less efficacious (p = 0.001) or less safe (p < 0.05). SIGNIFICANCE: Overall, neurologists appear to have generally positive opinions of epilepsy surgery, which is a change from prior literature and represents a changing landscape of views toward this intervention. Furthermore, epileptologists and general neurologists endorsed more similarities than differences in their opinions of surgery and steps to referral, which is another encouraging finding. Those gaps that remain between epileptologists and general neurologists, particularly in standards of ASM prescription, may be addressed by more consistent education about DRE and streamlining of surgical referral procedures.


Subject(s)
Drug Resistant Epilepsy , Epilepsy , Humans , Neurologists , Epilepsy/diagnosis , Epilepsy/surgery , Educational Status , Emotions
17.
Neuropediatrics ; 55(2): 129-134, 2024 04.
Article in English | MEDLINE | ID: mdl-38365198

ABSTRACT

PGAP2 gene has been known to be the cause of "hyperphosphatasia, mental retardation syndrome-3" (HPMRS3). To date, 14 pathogenic variants in PGAP2 have been identified as the cause of this syndrome in 24 patients described in single-case reports or small clinical series with pan-ethnic distribution. We aim to present a pediatric PGAP2-mutated case, intending to further expand the clinical phenotype of the syndrome and to report our experience on a therapeutic approach to drug-resistant epilepsy.We present the clinical, neuroradiological, and genetic characterization of a Caucasian pediatric subject with biallelic pathogenic variants in the PGAP2 gene revealed by next generation sequencing analysis.We identified a subject who presented with global developmental delay and visual impairment. Brain magnetic resonance imaging showed mild hypoplasia of the inferior cerebellar vermis and corpus callosum and mild white matter reduction. Laboratory investigations detected an increase in alkaline phosphatase. At the age of 13 months, he began to present epileptic focal seizures with impaired awareness, which did not respond to various antiseizure medications. Electroencephalogram (EEG) showed progressive background activity disorganization and multifocal epileptic abnormalities. Treatment with high-dose pyridoxine showed partial benefit, but the persistence of seizures and the lack of EEG amelioration prompted us to introduce ketogenic diet treatment.Our case provides a further phenotypical expansion of HPMRS3 to include developmental and epileptic encephalopathy. Due to the limited number of patients reported so far, the full delineation of the clinical spectrum of HPMRS3 and indications for precision medicine would benefit from the description of new cases and their follow-up evaluations.


Subject(s)
Abnormalities, Multiple , Epilepsy , Intellectual Disability , Humans , Infant , Male , Abnormalities, Multiple/pathology , Brain/pathology , Epilepsy/diagnostic imaging , Epilepsy/drug therapy , Epilepsy/genetics , Intellectual Disability/genetics , Intellectual Disability/pathology , Phenotype , Seizures , Syndrome
18.
Medicine (Baltimore) ; 103(6): e37224, 2024 Feb 09.
Article in English | MEDLINE | ID: mdl-38335401

ABSTRACT

Acori Tatarinowii Rhizoma (ATR) and Nardostahyos Radix et Rhizoma (NRR) are well-known traditional Chinese medicines that have been extensively used for the treatment of epilepsy (EP). However, the precise molecular mechanism of ATR-NRR action remains unclear because of their intricate ingredients. This study aimed to investigate the underlying mechanism of ATR-NRR in EP treatment using network pharmacology and molecular docking techniques. Herbal medicine and disease gene databases were searched to determine active constituents and shared targets of ATR-NRR and EP. A protein-protein interaction network was constructed using the STRING database, while the Gene Ontology and the Kyoto Encyclopedia of Genes and Genome pathway enrichment were performed using R programming. An ingredient-target-pathway network map was constructed using the Cytoscape software, incorporating network topology calculations to predict active ingredients and hub targets. The binding abilities of active ingredients and hub targets were examined using molecular docking. Nine qualified compounds and 53 common targets were obtained. The prominent active compounds were kaempferol, acacetin, cryptotanshinone, 8-isopentenyl-kaempferol, naringenin, and eudesmin, while the primary targets were RELA, AKT1, CASP3, MAPK8, JUN, TNF, and TP53. Molecular docking analysis revealed that they have substantial binding abilities. These 53 targets were found to influence EP by manipulating PI3K-Akt, IL-17, TNF, and apoptosis signaling pathways. The findings of this study indicate that ATR-NRR functions against EP by acting upon multiple pathways and targets, offering a basis for future study.


Subject(s)
Drugs, Chinese Herbal , Epilepsy , Humans , Molecular Docking Simulation , Kaempferols , Network Pharmacology , Phosphatidylinositol 3-Kinases , Epilepsy/drug therapy , Drugs, Chinese Herbal/pharmacology , Drugs, Chinese Herbal/therapeutic use , Medicine, Chinese Traditional
19.
BMC Neurol ; 24(1): 8, 2024 Jan 02.
Article in English | MEDLINE | ID: mdl-38166885

ABSTRACT

BACKGROUND: Epilepsy contributes to high morbidity among children and adolescents in developing countries. A quarter of all children with epilepsy will be resistant to anti-seizure medications (ASMs), with associated neurocognitive impairments and risk of higher mortality. This study aimed to estimate and characterize drug-resistant epilepsy (DRE) (defined as failure to achieve sustained remission after adequate trials of two tolerated and appropriately chosen ASMs) and its associated factors among children and adolescents with epilepsies attending the pediatric neurology clinic at Muhimbili National Hospital (MNH), Dar es Salaam Tanzania. METHODS: This cross-sectional study was conducted from June 2020 to June 2021. Children with epilepsies and who had been treated with ASMs for at least 3 months were eligible for inclusion. Exclusion criteria included children whose caregivers denied consent and those who exhibited acute medical conditions necessitating admission on the scheduled visit day. Data on demographic characteristics, perinatal history, detailed history of the seizures semiology, drug history, magnetic resonance imaging (MRI), and electroencephalography (EEG) results were obtained from caregivers and medical records available during recruitment. Seizures and epilepsies were classified using the 2017 International League Against Epilepsy (ILAE) classification. Logistic regression was used to determine factors associated with DRE. RESULTS: A total of 236 children and adolescents aged between 4 months and 15 years (Median age 72 months (IQR = 42-78)) were enrolled in this study. We found the proportion of DRE to be 14.8% in this cohort. Of the thirty-five patients with DRE, 60% had generalized epilepsy and almost 25% had a diagnosis of an epilepsy syndrome, the most common being Lennox-Gastaut syndrome (LGS). Structural abnormalities on brain MRI were seen in almost 80% of all patients with DRE, the most prevalent being cystic encephalomalacia, which was observed in 34% of patients. Patients using both ASMs and alternative therapies accounted for 9% of this cohort. The onset of seizures during the first month of life (aOR = 1.99; 95%CI 1.7-4.6; p = 0.031) and high initial seizure frequency (aOR = 3.6; 95%CI 1.6-8;p = 0.002) were found to be independently associated with DRE. CONCLUSION: The proportion of DRE in Tanzania is high. Patients with neonatal onset seizures and high initial seizure frequency should be followed up closely to ensure early diagnosis of DRE.


Subject(s)
Drug Resistant Epilepsy , Epilepsy , Child , Adolescent , Infant, Newborn , Humans , Cross-Sectional Studies , Tanzania/epidemiology , Epilepsy/drug therapy , Epilepsy/epidemiology , Seizures
20.
BMC Complement Med Ther ; 24(1): 63, 2024 Jan 29.
Article in English | MEDLINE | ID: mdl-38287355

ABSTRACT

BACKGROUND: The relationship between epilepsy and depression is bidirectional. One condition exacerbates the other. However, there are no current guidelines for treating depression in epilepsy patients. In some cases, seizures worsen when antidepressants (AD) are prescribed or when they are discontinued due to adverse events. The Shugan Jieyu capsule, composed of Acanthopanax senticosus and Hypericum perforatum, is a widely used herbal medicine for treating depression. This study aimed to explore the effectiveness and safety of Shugan Jieyu capsules (SJC) in relieving depression in patients with epilepsy. METHODS: We searched English, Korean, Japanese, and Chinese databases in October 2023 to collect all relevant randomized clinical trials (RCTs). The primary outcomes were the depression scale scores and seizure frequency. The secondary outcomes were quality of life (QoL) and adverse events. RESULTS: Nine RCTs were included in this meta-analysis. Compared with AD, SJC showed significant differences in the improvement of depression (SMD: 3.82, 95% CI: 3.25, 4.39) and reduction in seizure frequency (MD: 0.39 times/month, 95% CI: 0.28, 0.50). SJC showed more beneficial results than antiepileptic drugs (AED) in terms of antidepressant effects (SMD: 1.10, 95% CI: 0.69, 1.51) and QoL (MD: 11.75, 95% CI: 10.55, 12.95). When patients were prescribed AED, the additional administration of SJC improved depression symptoms (SMD: 0.96, 95% CI: 0.28, 1.63). The SJC treatment group had a lower incidence of side effects than the control group. However, the difference was not statistically significant. CONCLUSIONS: Our results suggest that SJC may be effective in treating depression in patients with epilepsy. Additionally, SJC has the potential to help reduce seizure frequency in epilepsy patients with depression.


Subject(s)
Epilepsy , Humans , Epilepsy/drug therapy , Antidepressive Agents/therapeutic use , Anticonvulsants/therapeutic use , Seizures/drug therapy , Seizures/chemically induced
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