Displaying publications 81 - 100 of 203 in total

Abstract:
Sort:
  1. High mobility group box 1 (HMGB1) as a novel frontier in epileptogenesis: from pathogenesis to therapeutic approaches
    Paudel YN, Semple BD, Jones NC, Othman I, Shaikh MF
    J Neurochem, 2019 12;151(5):542-557.
    PMID: 30644560 DOI: 10.1111/jnc.14663
    Epilepsy is a serious neurological condition exhibiting complex pathology and deserving of more serious attention. More than 30% of people with epilepsy are not responsive to more than 20 anti-epileptic drugs currently available, reflecting an unmet clinical need for novel therapeutic strategies. Not much is known about the pathogenesis of epilepsy, but evidence indicates that neuroinflammation might contribute to the onset and progression of epilepsy following acquired brain insults. However, the molecular mechanisms underlying these pathophysiological processes are yet to be fully understood. The emerging research suggests that high-mobility group box protein 1 (HMGB1), a DNA-binding protein that is both actively secreted by inflammatory cells and released by necrotic cells, might contribute to the pathogenesis of epilepsy. HMGB1 as an initiator and amplifier of neuroinflammation, and its activation is implicated in the propagation of seizures in animal models. The current review will highlight the potential role of HMGB1 in the pathogenesis of epilepsy, and implications of HMGB1-targeted therapies against epilepsy. HMGB1 in this context is an emerging concept deserving further exploration. Increased understanding of HMGB1 in seizures and epilepsy will pave the way in designing novel and innovative therapeutic strategies that could modify the disease course or prevent its development.
    Matched MeSH terms: Seizures
  2. Fulltext End of life decision: we are not playing god?
    Wan Khairina, W.M.N., Ngow, H.A.
    International Medical Journal Malaysia, 2013;12(2):67-70.
    MyJurnal
    Advances in neonatal care now enable more infants to be kept alive despite clear clinical evidence of inevitable or imminent death on a life-support system. It is therefore no longer acceptable to the society that a patient is left to die in the hospital, without any form of treatment or intervention. We report a case of severe birth asphyxia, hypoxic-ischemic encephalopathy, neonatal seizures and left cephalohematoma. In spite of initial successful resuscitation, the infant could not survive until all possible methods of treatment were exhausted. This case illustrates one of many examples of the process involved in dealing with ending of life decision in a condition considered as futile.
    Matched MeSH terms: Seizures
  3. Fulltext Posterior Fossa Intradiploic Epidermoid Cyst: A case report
    Ng, Wei Ping, Liew, BS, Gee, TS, Azmin KR
    International Medical Journal Malaysia, 2015;14(2):67-70.
    MyJurnal
    Epidermoid cysts are rare, benign congenital tumours of ectodermal origin which typically present between
    the third to fifth decade. These tumours comprise approximately 0.2-1.8% of all intracranial tumours. Though
    these pearly tumours are potentially curable, subtotal resection may lead to catastrophic complications such as
    recurrence, granulomatous meningitis and carcinomatous degeneration of cyst wall. We herein report the case
    of a 36-year-old man who presented with an unusual mixed density posterior fossa epidermoid cyst on imaging
    studies. Total removal not only cures both tumour and seizure attack in this case but also preserves patient’s
    neurological function.
    Matched MeSH terms: Seizures
  4. Fulltext A Systematic Review on Non-mammalian Models in Epilepsy Research
    Johan Arief MF, Choo BKM, Yap JL, Kumari Y, Shaikh MF
    Front Pharmacol, 2018;9:655.
    PMID: 29997502 DOI: 10.3389/fphar.2018.00655
    Epilepsy is a common neurological disorder characterized by seizures which result in distinctive neurobiological and behavioral impairments. Not much is known about the causes of epilepsy, making it difficult to devise an effective cure for epilepsy. Moreover, clinical studies involving epileptogenesis and ictogenesis cannot be conducted in humans due to ethical reasons. As a result, animal models play a crucial role in the replication of epileptic seizures. In recent years, non-mammalian models have been given a primary focus in epilepsy research due to their advantages. This systematic review aims to summarize the importance of non-mammalian models in epilepsy research, such as in the screening of anti-convulsive compounds. The reason for this review is to integrate currently available information on the use and importance of non-mammalian models in epilepsy testing to aid in the planning of future studies as well as to provide an overview of the current state of this field. A PRISMA model was utilized and PubMed, Springer, ScienceDirect and SCOPUS were searched for articles published between January 2007 and November 2017. Fifty-one articles were finalized based on the inclusion/exclusion criteria and were discussed in this review. The results of this review demonstrated the current use of non-mammalian models in epilepsy research and reaffirmed their potential to supplement the typical rodent models of epilepsy in future research into both epileptogenesis and the treatment of epilepsy. This review also revealed a preference for zebrafish and fruit flies in lieu of other non-mammalian models, which is a shortcoming that should be corrected in future studies due to the great potential of these underutilized animal models.
    Matched MeSH terms: Seizures
  5. Fulltext Use of complementary and alternative medicine and adherence to antiepileptic drug therapy among epilepsy patients: a systematic review
    Farrukh MJ, Makmor-Bakry M, Hatah E, Tan HJ
    Patient Prefer Adherence, 2018;12:2111-2121.
    PMID: 30349205 DOI: 10.2147/PPA.S179031
    Purpose: To identify the use pattern of complementary and alternative medicine (CAM) and its impact on antiepileptic drug (AED) adherence among patients with epilepsy.

    Method: Potential studies were identified through a systematic search of Scopus, Science Direct, Google Scholar, and PubMed. The keywords used to identify relevant articles were "adherence," "AED," "epilepsy," "non-adherence," and "complementary and alternative medicine." An article was included in the review if the study met the following criteria: 1) conducted in epilepsy patients, 2) conducted in patients aged 18 years and above, 3) conducted in patients prescribed AEDs, and 4) patients' adherence to AEDs.

    Results: A total of 3,330 studies were identified and 30 were included in the final analysis. The review found that the AED non-adherence rate reported in the studies was between 25% and 66%. The percentage of CAM use was found to be between 7.5% and 73.3%. The most common reason for inadequate AED therapy and higher dependence on CAM was the patients' belief that epilepsy had a spiritual or psychological cause, rather than primarily being a disease of the brain. Other factors for AED non-adherence were forgetfulness, specific beliefs about medications, depression, uncontrolled recent seizures, and frequent medication dosage.

    Conclusion: The review found a high prevalence of CAM use and non-adherence to AEDs among epilepsy patients. However, a limited number of studies have investigated the association between CAM usage and AED adherence. Future studies may wish to explore the influence of CAM use on AED medication adherence.

    Matched MeSH terms: Seizures
  6. Fulltext Protective effect of α-asarone against nicotine-induced seizures in mice, but not by its interaction with nicotinic acetylcholine receptors
    Chellian R, Pandy V
    Biomed Pharmacother, 2018 Dec;108:1591-1595.
    PMID: 30372861 DOI: 10.1016/j.biopha.2018.09.137
    Alpha-asarone is one of the bioactive phytochemicals present in the rhizomes of Acorus species and demonstrated its anticonvulsant activity in rodents. Alpha-asarone protected mice from the gamma-aminobutyric acid (GABA) type A receptor antagonist or N-methyl-d-aspartate (NMDA) receptor agonist-induced seizures. In our recent study, α-asarone attenuated the nicotine withdrawal-induced depression-like behavior in mice. The seizures induced by nicotine is mediated through the activation of nicotinic acetylcholine receptors (nAChRs) and stimulation of NMDA receptors. Therefore, we hypothesized that α-asarone might be effective against nicotine-induced seizures. Also, the interaction of α-asarone with nAChRs is unknown. In this study, we investigated the effect of α-asarone on the locomotor activity and body temperature in mice. In addition, we studied the effect of α-asarone on nicotine-induced seizures in mice. Finally, we assessed in vivo pharmacodynamic interaction of α-asarone with nAChRs using nicotine-induced hypomotility and hypothermia tests in mice. The results of this study showed that the α-asarone (50-200 mg/kg, i.p.) and diazepam (5 mg/kg, i.p.) treatment significantly decreased the locomotor activity and body temperature in mice. Furthermore, α-asarone (50-200 mg/kg, i.p.) and diazepam (5 mg/kg, i.p.) pretreatment significantly prolonged the onset time of nicotine-induced seizures in mice. However, α-asarone (30 and 50 mg/kg, i.p.) pretreatment did not inhibit the nicotine-induced hypomotility or hypothermia in mice. Conversely, mecamylamine (1 mg/kg, s.c.) pretreatment completely blocked the nicotine-induced seizures and significantly prevents the nicotine-induced hypomotility and hypothermia in mice. Overall, these results suggest that the protective effect of α-asarone against nicotine-induced seizures did not mediate through the antagonism of nAChRs. We also postulated that the GABAergic and glutamatergic activities of α-asarone could be involved in its protective effect against nicotine-induced seizures and based on this aspect further studies are required.
    Matched MeSH terms: Seizures/chemically induced*; Seizures/metabolism; Seizures/prevention & control*
  7. Fulltext Anti-NMDAR Encephalitis in Association with Herpes Simplex Virus and Viral and Bacterial Zoonoses
    Yan Hung SK, Hiew FL, Viswanathan S
    Ann Indian Acad Neurol, 2019 1 30;22(1):102-103.
    PMID: 30692769 DOI: 10.4103/aian.AIAN_232_18
    Multiple co-infections can predispose a patient to autoimmune encephalitis. Out of thirty cases of N-methyl-D-aspartate receptor (NMDAR) encephalitis seen at a single tertiary referral center, only two cases of co-infection with NMDAR encephalitis were identified. One of these cases was highly interesting due to the presence of more than one co-infections along with the presence of cortical dysfunction, seizures, and orofacial dyskinesias at the onset in a male in the absence of tumors, which was refractory to initial treatment.
    Matched MeSH terms: Seizures
  8. Fulltext Phenytoin-induced severe thrombocytopaenia post dexamethasone co-administration in a patient with intracerebral haemorrhage
    Lau, E.F., Mazlan, M., Shanmugam, H.
    JUMMEC, 2018;21(2):31-34.
    MyJurnal
    Phenytoin is commonly prescribed for the prophylaxis of seizures in neurosurgical patients. A phenytoininduced
    serious adverse effect of thrombocytopenia has been reported in the literature. The concurrent
    use of dexamethasone, another commonly prescribed drug in neurosurgical patients, has been reported to
    aggravate this adverse haematological effect. We present a report of phenytoin-induced thrombocytopenia
    in a patient concurrently prescribed with dexamethasone, after an intracerebral haemorrhage secondary to
    a rupture of an arteriovenous malformation. The thrombocytopenia was noted after two weeks of phenytoin
    medication. Phenytoin was immediately withheld, and seven units of random donor platelets were transfused.
    A gradual resolution of thrombocytopenia was observed within a week.
    Matched MeSH terms: Seizures
  9. Cardiorespiratory findings in epilepsy: A recent review on outcomes and pathophysiology
    Akyüz E, Üner AK, Köklü B, Arulsamy A, Shaikh MF
    J Neurosci Res, 2021 09;99(9):2059-2073.
    PMID: 34109651 DOI: 10.1002/jnr.24861
    Epilepsy is a debilitating disorder of uncontrollable recurrent seizures that occurs as a result of imbalances in the brain excitatory and inhibitory neuronal signals, that could stem from a range of functional and structural neuronal impairments. Globally, nearly 70 million people are negatively impacted by epilepsy and its comorbidities. One such comorbidity is the effect epilepsy has on the autonomic nervous system (ANS), which plays a role in the control of blood circulation, respiration and gastrointestinal function. These epilepsy-induced impairments in the circulatory and respiratory systems may contribute toward sudden unexpected death in epilepsy (SUDEP). Although, various hypotheses have been proposed regarding the role of epilepsy on ANS, the linking pathological mechanism still remains unclear. Channelopathies and seizure-induced damages in ANS-control brain structures were some of the causal/pathological candidates of cardiorespiratory comorbidities in epilepsy patients, especially in those who were drug resistant. However, emerging preclinical research suggest that neurotransmitter/receptor dysfunction and synaptic changes in the ANS may also contribute to the epilepsy-related autonomic disorders. Thus, pathological mechanisms of cardiorespiratory dysfunction should be elucidated by considering the modifications in anatomy and physiology of the autonomic system caused by seizures. In this regard, we present a comprehensive review of the current literature, both clinical and preclinical animal studies, on the cardiorespiratory findings in epilepsy and elucidate the possible pathological mechanisms of these findings, in hopes to prevent SUDEP especially in patients who are drug resistant.
    Matched MeSH terms: Seizures/diagnosis; Seizures/physiopathology; Seizures/therapy
  10. Fulltext Severe acute poisoning by intentional self-harm with cypermethrin
    Kamarul Aryffin Baharuddin, Mohd Hashairi Fauzi, Mohd Boniami Yazid, Mohammad Zikri Ahmad, Wan Hazuraini Wan Zain
    Malaysian Journal of Emergency Medicine, 2016;1(1):24-39.
    MyJurnal
    Severe acutepoisoning of cypermethrin is rare. We reportedthiscase about a47-year old man who was brought to the Emergency Departmentwith drowsiness and drooling of saliva after intentional self-harm with 2.25gram of cypermethrin.His initial condition was stable. However, nine hours after admission, he developed seizures and reduced conscious level. He was ventilated overnight for airway protection. Management of acute severe poisoning is discussed in this case report.
    Matched MeSH terms: Seizures
  11. Design, Synthesis, and Pharmacological Screening of Pyridazinone Hybrids as Anticonvulsant Agents
    Partap S, Yar MS, Hassan MZ, Akhtar MJ, Siddiqui AA
    Arch Pharm (Weinheim), 2017 Oct;350(10).
    PMID: 28863231 DOI: 10.1002/ardp.201700135
    A series of new hybrid benzimidazole containing pyridazinones derivatives were designed and synthesized in accordance with the pharmacophoric requirements essential for the anticonvulsant activity. The synthesized compounds were evaluated for anticonvulsant activity on mice by the gold standard maximal electroshock (MES) and subcutaneous pentylenetetrazole (scPTZ)-induced seizure models. Among the compounds tested, SS-4F showed significant anticonvulsant activity in both the screens with ED50 values of 25.10 and 85.33 mg/kg in the MES and scPTZ screens, respectively. Compound SS-4F emerged as safer and effective anticonvulsant due to its several-fold higher protective indices. Further, the gamma-aminobutyric acid (GABA) estimation result showed a marked increase in the GABA level (1.7-fold) as compared to the control, which was further confirmed by good binding properties with the GABAA receptor.
    Matched MeSH terms: Seizures
  12. Deep convolutional neural network for the automated detection and diagnosis of seizure using EEG signals
    Acharya UR, Oh SL, Hagiwara Y, Tan JH, Adeli H
    Comput Biol Med, 2018 09 01;100:270-278.
    PMID: 28974302 DOI: 10.1016/j.compbiomed.2017.09.017
    An encephalogram (EEG) is a commonly used ancillary test to aide in the diagnosis of epilepsy. The EEG signal contains information about the electrical activity of the brain. Traditionally, neurologists employ direct visual inspection to identify epileptiform abnormalities. This technique can be time-consuming, limited by technical artifact, provides variable results secondary to reader expertise level, and is limited in identifying abnormalities. Therefore, it is essential to develop a computer-aided diagnosis (CAD) system to automatically distinguish the class of these EEG signals using machine learning techniques. This is the first study to employ the convolutional neural network (CNN) for analysis of EEG signals. In this work, a 13-layer deep convolutional neural network (CNN) algorithm is implemented to detect normal, preictal, and seizure classes. The proposed technique achieved an accuracy, specificity, and sensitivity of 88.67%, 90.00% and 95.00%, respectively.
    Matched MeSH terms: Seizures
  13. Fulltext Seizure induced by tranexamic acid in a patient with chronic kidney disease on maintenance dialysis
    Fuah KW, Lim CTS, Pang DCL, Wong JS
    Saudi J Kidney Dis Transpl, 2018 2 20;29(1):207-209.
    PMID: 29456232 DOI: 10.4103/1319-2442.225177
    Tranexamic acid (TXA) is an antifibrinolytic agent commonly used to achieve hemostasis. However, there have been a few case reports suggesting that high-dose intravenous TXA has epileptogenic property. In patients with renal impairment, even administering the usual recommended dose of TXA can induce seizure episodes. We present here a patient on hemodialysis who developed seizures after receiving two doses of TXA over 5 h period.
    Matched MeSH terms: Seizures/chemically induced*; Seizures/diagnosis; Seizures/drug therapy
  14. Fulltext Defining the Clinicoradiologic Syndrome of SARS-CoV-2 Acute Necrotizing Encephalopathy: A Systematic Review and 3 New Pediatric Cases
    Lee VW, Kam KQ, Mohamed AR, Musa H, Anandakrishnan P, Shen Q, et al.
    Neurol Neuroimmunol Neuroinflamm, 2024 Jan;11(1):e200186.
    PMID: 38086061 DOI: 10.1212/NXI.0000000000200186
    BACKGROUND AND OBJECTIVES: We characterize clinical and neuroimaging features of SARS-CoV-2-related acute necrotizing encephalopathy (ANE).

    METHODS: Systematic review of English language publications in PubMed and reference lists between January 1, 2020, and June 30, 2023, in accordance with PRISMA guidelines. Patients with SARS-CoV-2 infection who fulfilled diagnostic criteria for sporadic and genetic ANE were included.

    RESULTS: From 899 articles, 20 cases (17 single case reports and 3 additional cases) were curated for review (50% female; 8 were children). Associated COVID-19 illnesses were febrile upper respiratory tract infections in children while adults had pneumonia (45.6%) and myocarditis (8.2%). Children had early neurologic deterioration (median day 2 in children vs day 4 in adults), seizures (5 (62.5%) children vs 3 of 9 (33.3%) adults), and motor abnormalities (6 of 7 (85.7%) children vs 3 of 7 (42.9%) adults). Eight of 12 (66.7%) adults and 4 (50.0%) children had high-risk ANE scores. Five (62.5%) children and 12 (66.7%) adults had brain lesions bilaterally and symmetrically in the putamina, external capsules, insula cortex, or medial temporal lobes, in addition to typical thalamic lesions of ANE. Hypotension was only seen in adults (30%). Hematologic derangements were common: lymphopenia (66.7%), coagulopathy (60.0%), or elevated D-dimers (100%), C-reactive protein (91.7%), and ferritin (62.5%). A pathogenic heterozygous c/.1754 C>T variant in RANBP2 was present in 2 children: one known to have this before SARS-CoV-2 infection, and a patient tested because the SARS-CoV-2 infection was the second encephalopathic illness. Three other children with no prior encephalopathy or family history of encephalopathy were negative for this variant. Fifteen (75%) received immunotherapy (with IV methylprednisolone, immunoglobulins, tocilizumab, or plasma exchange): 6 (40.0%) with monotherapy and 9 (60.0%) had combination therapy. Deaths were in 8 of 17 with data (47.1%): a 2-month-old male infant and 7 adults (87.5%) of median age 56 years (33-70 years), 4 of whom did not receive immunotherapy.

    DISCUSSION: Children and adults with SARS-CoV-2 ANE have similar clinical features and neuroimaging characteristics. Mortality is high, predominantly in patients not receiving immunotherapy and at the extremes of age.

    Matched MeSH terms: Seizures
  15. Fulltext Effect of tualang honey against KA-induced oxidative stress and neurodegeneration in the cortex of rats
    Mohd Sairazi NS, K N S S, Asari MA, Mummedy S, Muzaimi M, Sulaiman SA
    BMC Complement Altern Med, 2017 Jan 09;17(1):31.
    PMID: 28068984 DOI: 10.1186/s12906-016-1534-x
    Administration of KA on rodents has resulted in seizures, behavioral changes, oxidative stress, and neuronal degeneration on selective population of neurons in the brain. The present study was undertaken to investigate the extent of neuroprotective effect conferred by Malaysian Tualang Honey (TH), an antioxidant agent, in the cerebral cortex of rats against KA-induced oxidative stress and neurodegeneration in an animal model of KA-induced excitotoxicity.
    Matched MeSH terms: Seizures/chemically induced; Seizures/drug therapy*; Seizures/metabolism
  16. Fulltext Angioarchitecture of brain arteriovenous malformations and the risk of bleeding: an analysis of patients in northeastern malaysia
    Kandai S, Abdullah MS, Naing NN
    Malays J Med Sci, 2010 Jan;17(1):44-8.
    PMID: 22135525
    Central nervous system arteriovenous malformation (AVM) is a vascular malformation of the brain and involves entanglement of veins and arteries without an intervening capillary bed. Affecting predominantly young male patients, AVM presents with different clinical manifestations namely headache, seizures, neurological deficit and intracranial haemorrhage. The patients who present acutely with intracranial bleeding have a significant morbidity and mortality. The aim is to study the angioarchitecture of brain AVM (BAVM) and determine the risk factors for intracranial bleeding. Ultimately, the goal of the study is to look for the association between volume of haematoma and architecture of BAVM.
    Matched MeSH terms: Seizures
  17. Post-transfusion hypertension and seizure in congenital hemolytic anemia: a case report and literature review
    Ngim CF, Ng CS, Lai NM
    J Trop Pediatr, 2014 Jun;60(3):253-6.
    PMID: 24473404 DOI: 10.1093/tropej/fmu003
    A rare syndrome of hypertension, seizures and intracranial bleed has been reported among patients with congenital hemolytic anemia who underwent multiple blood transfusions. We report this syndrome in a 12-year-old Malay girl with hemoglobin E-beta-thalassemia, who underwent intensive transfusion and subsequently had headache, visual loss, severe hypertension and seizures. A comprehensive literature review revealed 30 patients with this syndrome, of whom 15 had intracranial bleed and 12 among these 15 died. A less-intensive transfusion regimen among patients with chronic hemolytic anemia and prompt detection and management of hypertension may prevent this potentially fatal syndrome.
    Matched MeSH terms: Seizures/etiology*
  18. Malignant catatonia secondary to viral meningoencephalitis in a young man with bipolar disorder
    Saini SM, Eu CL, Wan Yahya WN, Abdul Rahman AH
    Asia Pac Psychiatry, 2013 Apr;5 Suppl 1:55-8.
    PMID: 23857838 DOI: 10.1111/appy.12045
    Matched MeSH terms: Seizures/etiology
  19. Sturge-Weber syndrome without facial nevus: an unusual cause of neonatal seizures
    Wong SW, Kyaw L, Ong LC, Zulfiqar AM
    J Paediatr Child Health, 2011 Apr;47(4):237-9.
    PMID: 20500432 DOI: 10.1111/j.1440-1754.2010.01739.x
    Sturge-Weber syndrome is a neurocutaneous syndrome characterised by facial port wine stain, ipsilateral leptomeningeal angioma and vascular eye abnormalities. We report a rare case of Sturge-Weber syndrome without facial nevus presenting with neonatal seizures.
    Matched MeSH terms: Seizures/etiology*
  20. Fulltext Generalized epilepsy with febrile seizure plus (GEFS+) spectrum: Novel de novo mutation of SCN1A detected in a Malaysian patient
    Tan EH, Yusoff AA, Abdullah JM, Razak SA
    J Pediatr Neurosci, 2012 May;7(2):123-5.
    PMID: 23248692 DOI: 10.4103/1817-1745.102575
    In this report, we describe a 15-year-old Malaysian male patient with a de novo SCN1A mutation who experienced prolonged febrile seizures after his first seizure at 6 months of age. This boy had generalized tonic clonic seizure (GTCS) which occurred with and without fever. Sequencing analysis of voltage-gated sodium channel a1-subunit gene, SCN1A, confirmed a homozygous A to G change at nucleotide 5197 (c.5197A > G) in exon 26 resulting in amino acid substitution of asparagines to aspartate at codon 1733 of sodium channel. The mutation identified in this patient is located in the pore-forming loop of SCN1A and this case report suggests missense mutation in pore-forming loop causes generalized epilepsy with febrile seizure plus (GEFS+) with clinically more severe neurologic phenotype including intellectual disabilities (mental retardation and autism features) and neuropsychiatric disease (anxiety disorder).
    Matched MeSH terms: Seizures, Febrile; Seizures
Related Terms
Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links