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1.
Brain ; 147(3): 830-838, 2024 03 01.
Artículo en Inglés | MEDLINE | ID: mdl-38079534

RESUMEN

Dengue virus is a flavivirus transmitted by the mosquitoes, Aedes aegypti and Aedes albopictus. Dengue infection by all four serotypes (DEN 1 to 4) is endemic globally in regions with tropical and subtropical climates, with an estimated 100-400 million infections annually. Among those hospitalized, the mortality is about 1%. Neurological involvement has been reported to be about 5%. The spectrum of neurological manifestations spans both the peripheral and central nervous systems. These manifestations could possibly be categorized into those directly related to dengue infection, i.e. acute and chronic encephalitis, indirect complications leading to dengue encephalopathy, and post-infectious syndrome due to immune-mediated reactions, and manifestations with uncertain mechanisms, such as acute transverse myelitis, acute cerebellitis and myositis. The rising trend in global dengue incidence calls for attention to a more explicit definition of each neurological manifestation for more accurate epidemiological data. The actual global burden of dengue infection with neurological manifestation is essential for future planning and execution of strategies, especially in the development of effective antivirals and vaccines against the dengue virus. In this article, we discuss the recent findings of different spectrums of neurological manifestations in dengue infection and provide an update on antiviral and vaccine development and their challenges.


Asunto(s)
Aedes , Encefalopatías , Dengue , Virosis , Animales , Humanos , Dengue/complicaciones , Dengue/epidemiología
2.
Epilepsy Behav ; 155: 109778, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38636139

RESUMEN

INTRODUCTION: Depression and anxiety are prevalent in epilepsy patients, but psychiatric or psychological services may not be accessible to all patients. This study aimed to determine the effectiveness of the 20-minute mindful breathing on the psychological well-being of PWE using an instructional video. METHOD: This was a pilot, assessor-blinded, randomized controlled trial. The intervention group received a guided video and was briefed to perform the exercise twice a week for two weeks while the waitlist control group only received the video upon completion of the study. The subjects were assessed at three-time points (T0: Baseline, T1: 2 weeks after the intervention, T2: 4 weeks after intervention), using the Neurological Disorders Depression Index (NDDI-E), General Anxiety Disorder (GAD-7), Quality of Life in Epilepsy Inventory (QOLIE-31) and Mindfulness Attention Awareness Scale (MAAS). RESULTS: Twenty patients were recruited, with 10 in the intervention and waitlist-control groups. Compared with the waitlist-control group, participants in the intervention group showed significant improvement in NDDI-E at T1 (p = 0.022) but not at T2 (p = 0.056) and greater improvement in GAD-7 at T1 and T2 but not statistically significant. The QOLIE-31 overall score in the intervention group has significantly improved at T1 (p = 0.036) and T2 (p = 0.031) compared to the waitlist-control group. For MAAS, the intervention group also had an increased score at T2 (p = 0.025). CONCLUSION: The 20-minute mindfulness breathing exercise has an immediate effect in improving depression and quality of life among people with epilepsy.


Asunto(s)
Ejercicios Respiratorios , Epilepsia , Atención Plena , Calidad de Vida , Humanos , Masculino , Femenino , Proyectos Piloto , Adulto , Epilepsia/psicología , Epilepsia/terapia , Atención Plena/métodos , Calidad de Vida/psicología , Ejercicios Respiratorios/métodos , Persona de Mediana Edad , Depresión/terapia , Depresión/psicología , Resultado del Tratamiento , Adulto Joven , Ansiedad/terapia , Ansiedad/psicología , Ansiedad/etiología , Escalas de Valoración Psiquiátrica , Bienestar Psicológico
3.
Epilepsia ; 64(8): 2116-2125, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37243851

RESUMEN

OBJECTIVE: One of the objectives of the Intersectoral Global Action Plan on epilepsy and other neurological disorders for 2022 to 2031 is to ensure at least 80% of people with epilepsy (PWE) will have access to appropriate, affordable, and safe antiseizure medications (ASMs) by 2031. However, ASM affordability is a significant issue in low- and middle-income countries, preventing PWE from accessing optimal treatment. This study aimed to determine the affordability of the newer (second and third generation) ASMs in resource-limited countries in Asia. METHODS: We conducted a cross-sectional survey by contacting country representatives in lower-middle-income countries (LMICs) in Asia, including Indonesia, Lao People's Democratic Republic (PDR), Myanmar, Philippines, Vietnam, India, Bangladesh, and Pakistan, and the upper-middle-income country Malaysia, from March 2022 to April 2022. The affordability of each ASM was calculated by dividing the 30-day ASM cost by the daily wage of the lowest paid unskilled laborers. Treatment costing 1 day's wage or less for a 30-day supply of chronic disease is considered affordable. RESULTS: Eight LMICs and one upper-middle-income country were included in this study. Lao PDR had no newer ASM, and Vietnam had only three newer ASMs. The most frequently available ASMs were levetiracetam, topiramate, and lamotrigine, and the least frequently available was lacosamide. The majority of the newer ASMs were unaffordable, with the median number of days' wages for a 30-day supply ranging from 5.6 to 14.8 days. SIGNIFICANCE: All new generation ASMs, whether original or generic brands, were unaffordable in most Asian LMICs.


Asunto(s)
Anticonvulsivantes , Epilepsia , Humanos , Estudios Transversales , Asia , India , Anticonvulsivantes/uso terapéutico , Epilepsia/tratamiento farmacológico , Costos y Análisis de Costo
4.
Epilepsy Behav ; 147: 109395, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37619469

RESUMEN

BACKGROUND: Caregivers of adults with epilepsy (AWE) play an important role in the healthcare pathway of AWE and are described as the "co-client." Being caregivers can be stressful and the negative impacts might accumulate over time, affecting their quality of life and well-being. OBJECTIVES: This qualitative study aimed to explore the lived experience of caregivers of AWE in Malaysian families and understand their caregiving challenges. Individual semi-structured interviews were held with 12 primary caregivers of AWE. Interpretative Phenomenological Approach (IPA) was used. The interview transcripts were analyzed using NVivo12 software. RESULTS: Primary caregivers of AWE were parents or siblings, with ages ranging from 56 to 80 years old and years of caregiving from 24 to 40 years. Most AWE (58%) were intellectually disabled and fully dependent on ADL needs. Two categories of themes emerged, including four themes on caregiver burden, i.e., physical, emotional, and social burdens, and challenges in future planning of care, and two themes on coping strategies (problem- or emotional-focused). In future planning of care, most caregivers especially parents carried a burden of responsibility and were reluctant to depend on others or institutional services. CONCLUSION: The caregiving burden among caregivers for adult AWE was not confined to current burdens only but also challenges in future planning. A better understanding of the caregiving burden for AWE and coping strategies is needed to provide tailored psychoeducation or psychosocial intervention to support this population.

5.
Epilepsy Behav ; 148: 109455, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37774547

RESUMEN

OBJECTIVE: People with epilepsy (PWE) have a high prevalence of developing depression and anxiety. The objective is to determine the feasibility of brief screening tools to screen for depression and anxiety in epilepsy, and the predictive factors. METHOD: This is a cross-sectional study in the neurology clinic in a tertiary teaching hospital in Kuala Lumpur. The screening tools used were the Neurological Disorders Depression Inventory for Epilepsy (NDDI-E) and the General Anxiety Disorder Form (GAD-7). RESULTS: Five hundred and eighty-five patients were recruited in this study, and 50.8% of them were male, predominantly Chinese (46.7%), with a mean age of seizure onset of 21.8 ± 16.1 years. The majority had focal seizures (75.0%), and 41.9% had seizure remission. There were 15.5% who scored ≥15 in the NDDI-E, and 17.0% had moderate or severe anxiety (scored ≥10 in the GAD-7). In a regression model to predict the NDDI-E score, the age of seizure onset recorded a higher beta value (ß = -0.265, p =< 0.001), followed by the duration of epilepsy (ß = -0.213, p =< 0.001), use of levetiracetam (LEV) (ß = 0.147, p = 0.002), clonazepam (CLZ) (ß = 0.127, p = 0.011), and lamotrigine (LTG) (ß = 0.125, p = 0.011), number of current antiseizure medications (ß = -0.124, p = 0.049), seizure remission for ≥1 year (ß = -0.108, p = 0.011), and female (ß = 0.082, p = 0.049). For the GAD-7 score, the predictors included current age (ß = -0.152, p = 0.001), the use of LEV (ß = 0.122, p = 0.011), Indian ethnicity (ß = 0.114, p = 0.006), and the use of carbamazepine (ß = -0.090, p = 0.043). CONCLUSION: Implementation of simple psychological screening using self-administered questionnaires was feasible in a busy tertiary epilepsy clinic.


Asunto(s)
Epilepsia , Humanos , Masculino , Femenino , Preescolar , Niño , Adolescente , Adulto Joven , Adulto , Estudios Transversales , Estudios de Factibilidad , Epilepsia/complicaciones , Epilepsia/diagnóstico , Epilepsia/tratamiento farmacológico , Anticonvulsivantes/uso terapéutico , Levetiracetam/uso terapéutico , Depresión/diagnóstico , Depresión/etiología , Depresión/epidemiología , Convulsiones/tratamiento farmacológico
6.
Epilepsy Behav ; 117: 107849, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33631434

RESUMEN

BACKGROUND: This study aimed to determine the relationship among the clinical, logistic, and psychological impacts of COVID-19 on people with epilepsy (PWE), and the impact of COVID-19 on the quality of life. METHOD: This is a cross-sectional anonymized web-based study on PWE, using an online questionnaire to assess the clinical, logistic, and psychological impacts of COVID-19, including Hospital Anxiety Depression Scale (HADS) and Quality of Life in Epilepsy Inventory (QOLIE-31). RESULT: 461 patients were recruited, with a mean age of 39.21 ±â€¯15.88 years, majority female (50.1%), with focal epilepsy (54.0%), and experienced seizures at least once yearly (62.5%). There were 13.0% experienced seizure worsening during COVID-19 period, which were associated with baseline seizures frequency ≥ 1 per month (32.0% vs. 6.2%, p < 0.001), worries of seizure worsening (18.0% vs. 10.9%, p < 0.001), difficulty to go emergency unit (24.4% vs. 10.4%, p < 0.001), AEDs ran out of stock (23.2% vs. 11.6%, p < 0.05), self-adjustment of AED dosages (26.4% vs. 11.3%, p < 0.001), inadequate sleep (22.4% vs. 9.2%, p < 0.001), and stress (23.4% vs.10.1%, p < 0.01). Participants experiencing seizure worsening reported greater anxiety (8.10 ±â€¯5.011 vs. 4.84 ±â€¯3.989, p < 0.001) and depression (6.05 ±â€¯3.868 vs. 3.86 ±â€¯3.589, p < 0.001). Logistic regression showed baseline seizures frequency >1 per month (OR, 14.10) followed by anxiety (OR, 3.90), inadequate sleep (OR, 0.37), and treated in UMMC (OR, 0.31) as the predictors for seizure worsening during COVID-19 period. Poorer total QOLIE-31 score was noted in those with seizure worsening (48.01 ±â€¯13.040 vs. 62.15 ±â€¯15.222, p < 0.001). Stepwise regression highlighted depression as the main negative predictor for quality of life (ß = -0.372, p < 0.001), followed by anxiety (ß = -0.345, p < 0.001). CONCLUSION: A significant number of PWE experienced seizure worsening during COVID-19 period, which was related to the clinical, logistic, and psychological factors. Quality of life was affected by the seizure worsening and the psychological stress.


Asunto(s)
COVID-19 , Epilepsia , Adulto , Estudios Transversales , Epilepsia/complicaciones , Femenino , Humanos , Persona de Mediana Edad , Calidad de Vida , SARS-CoV-2 , Encuestas y Cuestionarios , Adulto Joven
7.
Epilepsy Behav ; 122: 108215, 2021 09.
Artículo en Inglés | MEDLINE | ID: mdl-34325157

RESUMEN

BACKGROUND: Telehealth use is limited in developing countries. Therefore, a modified approach with early physical consultation was designed and applied in our hospital. This study aimed to determine the efficacy of this early physical consultation in reducing the clinical and psychological impacts of coronavirus disease-19 (COVID-19), which enabled insight into its global feasibility. METHOD: Participants were contacted and offered early physical consultation with a neurologist. Patients who participated in the Phase 1 study on the impacts of the COVID-19 pandemic on people with epilepsy and treated in our hospital were recruited. Clinical and psychological outcomes of COVID-19 were assessed with the Hospital Anxiety Depression Scale (HADS) and Quality of Life in Epilepsy Inventory (QOLIE-31). RESULT: A total of 312 patients completed this study with a mean age of 39.13 ±â€¯16.13 years, majority female (51.0%), and experienced seizures at least once yearly (64.7%). There was 12.6% who experienced seizure worsening related to the COVID-19 pandemic. After receiving early clinical intervention, 30.8% achieved better seizure control with another 51.1% had no seizure occurrence. The mean HADS anxiety score improved immediately post-intervention (5.27 ±â€¯4.32 vs. 4.79 ±â€¯4.26, p < 0.01), and at 2-week post-intervention (5.58 ±â€¯4.46 vs. 4.73 ±â€¯3.95, p < 0.01). The mean HADS depression score also improved immediately post-intervention (4.12 ±â€¯3.69 vs. 3.84 ±â€¯3.76, p < 0.05) and at 2-week post-intervention (4.38 ±â€¯3.81 vs. 3.73 ±â€¯3.63, p < 0.05). The intervention resulted in significant improvement in energy-fatigue and social function subscales in QOLIE-31 but a reduction in cognitive and medication effects subscales. CONCLUSION: Early physical consultation with stringent precautionary measures is feasible and effective in improving the psychological outcome during COVID-19 pandemic.


Asunto(s)
COVID-19 , Epilepsia , Adulto , Ansiedad/epidemiología , Ansiedad/etiología , Depresión/epidemiología , Depresión/etiología , Epilepsia/epidemiología , Femenino , Humanos , Persona de Mediana Edad , Pandemias , Calidad de Vida , Derivación y Consulta , SARS-CoV-2 , Encuestas y Cuestionarios , Adulto Joven
8.
Epilepsy Behav ; 117: 107798, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33582391

RESUMEN

BACKGROUND: In epilepsy stigma, certain perceptions are culturally dependent and greatly influence a person's attitudes. Hence, we aimed to explore the perceptions associated with attitudes toward epilepsy in various urban subpopulations. METHOD: This is a mixed-method study employing the Public Attitude Toward Epilepsy (PATE) scale as the quantitative measure, followed by a semi-structured interview. The qualitative data were then counted and analyzed concurrently with the quantitative data. RESULT: A total of 410 respondents (104 people with epilepsy [PWE]; 104 family members [FM]; 100 medical students [MS]; 102 public [Pb]) aged 37 years (IQR 23-55) were recruited. They were mostly female (57.3%), Chinese (52.0%), and highly educated (63.7%). The attitudes toward epilepsy among medical students are the best, followed by the PWE and their family members, and the worst among the public. The qualitative results revealed 4 main themes, which were "general social values", "epilepsy severity and control", "PWE's abilities", and "harms and burdens to the respondents and others". A two-dimensional perception model was constructed based on these themes, which consisted of general-personal and universal-specific dimensions. Generally, the PWE/FM subgroup focused more on PWE's abilities, whereas the MS/Pb subgroup more on general social values, and harms and burden. In the education aspect, most attitudes were related to the epilepsy severity and PWE's abilities, whereas in employment, the main consideration was the PWE's abilities. Burden to life and concern about inheritance were major considerations in the marital relationship. Those with positive attitudes tend to highlight the importance of general social values, while negative attitudes associated more with epilepsy severity. In general domain, general social values were the main considering factor but in personal domain, most participants will consider epilepsy severity and control, harms and burden to themselves. CONCLUSION: The perceptions underlying attitudes toward epilepsy were complex and varied between subpopulations, attitude levels, domains, and aspects of life. (304 words).


Asunto(s)
Epilepsia , Opinión Pública , Adulto , Actitud , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Percepción , Estigma Social , Encuestas y Cuestionarios
9.
Epilepsy Behav ; 110: 107158, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32512367

RESUMEN

BACKGROUND: Epilepsy stigma is an important issue affecting people with epilepsy (PWE) in various social aspects of life. Most studies on stigma were among the metropolitan population but rarely on indigenous people. Hence, this study aimed to understand the attitudes toward epilepsy of the East Malaysians, comparing with the West Malaysians previously reported. METHOD: This study was performed among the indigenous people in Kuching and Sibu (Sarawak) and Kota Kinabalu (Sabah) using the Public Attitudes Toward Epilepsy (PATE) scale. A higher score indicates poorer attitude. RESULT: A total of 360 respondents (41.7% Kadazan-Dusun, 30.6% Bidayuh, and 24.7% Iban) aged 34.6 ±â€¯12.6 years completed the questionnaire. They were predominantly females and had lower education level and income compared with the West Malaysians. The Sabah population had significantly lower mean scores (better attitudes) than those in Sarawak, in both personal and general domains (p < .001). As compared with West Malaysia, the mean score in the personal domain was significantly lower in Sabah, while Sarawak had significantly higher scores in general domain (p < .001). Subanalysis showed that the Sabah population had better attitudes toward marriage and employment in PWE than the West Malaysians, whereas Sarawak had poorer attitudes toward education and social contact in PWE. CONCLUSION: The attitudes toward epilepsy were different among the indigenous populations in Sabah and Sarawak, and from the West Malaysians, which could be attributable to their sociocultural differences.


Asunto(s)
Epilepsia/etnología , Conocimientos, Actitudes y Práctica en Salud , Grupos de Población/etnología , Opinión Pública , Estigma Social , Adolescente , Adulto , Epilepsia/psicología , Femenino , Humanos , Malasia/etnología , Masculino , Persona de Mediana Edad , Grupos de Población/psicología , Encuestas y Cuestionarios , Adulto Joven
10.
Epilepsy Behav ; 103(Pt A): 106833, 2020 02.
Artículo en Inglés | MEDLINE | ID: mdl-31839499

RESUMEN

INTRODUCTION: Epilepsy stigma has been associated with poor quality of life among people with epilepsy (PWE). It is important to understand the variation and degree of epilepsy stigma in one of the most populous and culturally diverse nations in the world, Indonesia. Hence, this study aimed to test the validity and reliability of the Indonesian version of the Public Attitudes Toward Epilepsy (PATE) scale. METHOD: The translation was performed according to standard principles and tested in 200 native Indonesian speakers who were aged above 18-year-old for psychometric validation. RESULTS: The items in each domain had similar means and standard deviations (equal item variance), means ranging from 2.17 to 2.86 in general domain and 2.75 to 3.56 in personal domain and, standard deviations ranging from 0.87 to 1.05 and 0.88 to 1.01 in general and personal domain, respectively. Item-domain correlations were more than 0.5 for all items, and they correlate higher within their own domain compare with the other domain (convergent and divergent validity). Multitrait analysis showed similar variance, floor, and ceiling patterns to a great extent compared with the initial study. The Indonesian PATE scale also showed mostly similar correlation with demographic characteristics except monthly income. Principle axis analysis revealed strong factor loading (>0.3) in their hypothesized domain, except item 14. The Cronbach's α values for general and personal domains were 0.836 and 0.765, which were within the accepted range of 0.7 to 0.9. CONCLUSION: The Indonesian PATE scale is a validated and reliable translation for measuring public attitudes toward epilepsy.


Asunto(s)
Epilepsia/etnología , Conocimientos, Actitudes y Práctica en Salud , Psicometría/normas , Opinión Pública , Encuestas y Cuestionarios/normas , Traducción , Adolescente , Adulto , Comparación Transcultural , Epilepsia/psicología , Femenino , Humanos , Indonesia/etnología , Masculino , Persona de Mediana Edad , Psicometría/métodos , Calidad de Vida/psicología , Reproducibilidad de los Resultados , Estigma Social , Adulto Joven
11.
Neurol Sci ; 41(3): 591-598, 2020 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-31720899

RESUMEN

INTRODUCTION: Genetic (idiopathic) generalized epilepsy (GGE) is a common form of epilepsy characterized by unknown aetiology and a presence of genetic component in its predisposition. METHODS: To understand the genetic factor in a family with GGE, we performed whole exome sequencing (WES) on a trio of a juvenile myoclonic epilepsy/febrile seizure (JME/FS) proband with JME/FS mother and healthy father. Sanger sequencing was carried out for validation of WES results and variant detection in other family members. RESULTS: Predictably damaging variant found in affected proband and mother but absent in healthy father in SCN1A gene was found to be associated with generalized epilepsy and febrile seizure. The novel non-synonymous substitution (c.5753C>T, p.S1918F) in SCN1A was found in all family members with GGE, of which 4/8 were JME subtypes, and/or febrile seizure, while 3 healthy family member controls did not have the mutation. This mutation was also absent in 41 GGE patients and 414 healthy Malaysian Chinese controls. CONCLUSION: The mutation is likely to affect interaction between the sodium channel and calmodulin and subsequently interrupt calmodulin-dependent modulation of the channel.


Asunto(s)
Epilepsia Generalizada/genética , Epilepsia Mioclónica Juvenil/genética , Canal de Sodio Activado por Voltaje NAV1.1/genética , Convulsiones Febriles/genética , Adolescente , Adulto , Anciano , Femenino , Humanos , Malasia , Masculino , Persona de Mediana Edad , Mutación , Linaje , Secuenciación del Exoma
12.
Neurol Sci ; 41(10): 2831-2842, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-32314118

RESUMEN

INTRODUCTION: Little is known regarding the educational needs and perspectives of people living with Parkinson's disease (PD), particularly in Asia. OBJECTIVE: To assess knowledge and perceptions regarding PD in a large multiethnic urban Asian cohort of patients and caregivers. METHODS: We conducted a survey at a university hospital neurology clinic, using a novel Knowledge and Perception of Parkinson's Disease Questionnaire (KPPDQ). RESULTS: The KPPDQ had satisfactory psychometric properties among patients and caregivers. Five hundred subjects were recruited with a 97% response rate (211 patients, 273 caregivers). Non-motor symptoms such as urinary problems, visual hallucinations and pain were relatively poorly recognized. Many (≈ 50-80%) respondents incorrectly believed that all PD patients experience tremor, that PD is usually familial, and that there is a cure for PD. About one-half perceived PD to be caused by something the patient had done in the past, and that PD medications were likely to cause internal organ damage. Issues of stigma/shame were relevant to one-third of patients, and 70% of patients perceived themselves to be a burden to others. Two-thirds of participants felt that PD imposed a heavy financial toll. Participants were about equally divided as to whether they would consider treatment with deep brain stimulation, tube feeding or invasive ventilation. Over three-quarters of patients expressed a preference to die at home. CONCLUSIONS: Important knowledge gaps, misperceptions and perspectives on PD were identified, highlighting the need for further efforts to raise awareness and provide accurate information regarding PD, and to address patient's and caregivers' needs and preferences.


Asunto(s)
Cuidadores , Enfermedad de Parkinson , Emociones , Humanos , Enfermedad de Parkinson/terapia , Encuestas y Cuestionarios , Temblor
13.
Pharmacogenet Genomics ; 27(7): 275-278, 2017 07.
Artículo en Inglés | MEDLINE | ID: mdl-28570299

RESUMEN

The majority of the carbamazepine-induced Stevens-Johnson syndrome and toxic epidermal necrolysis CBZ-SJS/TEN are associated with HLA-B*15:02 in Asian populations where this allele is common. In contrast, the association with HLA-A*31:01 is only reported in Japanese and Europeans. This study aimed to further investigate the association with HLA-A*31:01 besides HLA-B*15:02 in a multiethnic Malaysian population. Twenty-eight CBZ-SJS/TEN cases and 227 CBZ-tolerant controls were recruited. Association was tested by comparing carrier frequencies of the alleles between cases and controls. Significant associations were detected between HLA-B*15:02 and CBZ-SJS/TEN in independent ethnic groups: Malays [P=2.00×10; odds ratio (OR): 49.0; 95% confidence interval (CI): 9.36-256.81], Chinese (P=0.0047; OR: 14.3; 95% CI: 2.38-86.03) and Indians (P=0.04; OR: 13.8; 95% CI: 1.51-124.99). Combined analysis of all ethnic groups showed a significant association with OR Cochran-Mantel-Haenszel (ORCMH) of 26.6 (95% CI: 12.80-55.25; PCMH=2.31×10). In Indians, HLA-A*31:01 was found to be associated significantly with CBZ-SJS/TEN (P=0.023; OR: 10.4; 95% CI: 1.64-65.79) and combined analyses of both variants, HLA-A*31:01 and HLA-B*15:02, increased the strength of the association (P=0.0068; OR: 14.3; 95% CI: 2.20-92.9). Besides HLA-B*15:02, our study found a new association between HLA-A*31:01 and CBZ-SJS/TEN in Indians.


Asunto(s)
Carbamazepina/efectos adversos , Etnicidad/genética , Antígenos HLA-A/genética , Antígenos HLA-B/genética , Síndrome de Stevens-Johnson/etiología , Síndrome de Stevens-Johnson/genética , Adolescente , Adulto , Anciano , Alelos , Pueblo Asiatico/genética , Estudios de Casos y Controles , Niño , Femenino , Humanos , Malasia , Masculino , Persona de Mediana Edad , Adulto Joven
14.
Optom Vis Sci ; 94(10): 981-985, 2017 10.
Artículo en Inglés | MEDLINE | ID: mdl-28858045

RESUMEN

SIGNIFICANCE: To our knowledge, this is the first time a study looking at the association between corneal hysteresis (CH) and obstructive sleep apnea syndrome (OSAS) severity has been reported. We provide evidence that CH is lower in OSAS and speculate on the possible causes. PURPOSE: The present study aims to look at the association between CH and severity of OSAS, and whether CH could be another link between OSAS and the development of glaucoma. METHODS: This was a cross-sectional, observational study at the University Malaya Medical Centre, Kuala Lumpur. Patients undergoing polysomnography for assessment of OSAS were recruited. We measured central corneal thickness (CCT) using optical biometry, and CH using ocular response analysis. Intraocular pressure (IOP) and Humphrey visual field (HVF) indices were also measured. The Apnea Hypopnea Index (AHI) divided patients into normal, mild, moderate, and severe OSAS categories. The normal and mild categories (47.9%) were then collectively called group 1, and the moderate and severe categories (52.1%) were called group 2. T tests, Pearson correlation tests, and general linear model analysis were performed, with P <.05 considered statistically significant. RESULTS: One eye each from 117 patients (75 men, 42 women) was included. Patients in group 2 had lower CH (9.8 ± 1.4 vs. 10.3 ± 1.1 mm Hg, P = .029), with unchanged estimated marginal means after correcting for age, sex, CCT, and IOP (P = .026). There were no statistically significant differences in IOP, CCT, or HVF indices between the two groups (all P > .05). CH correlated negatively with AHI (r = -0.229, P = .013) and positively with lowest oxygen saturation (r = 0.213, P = .022). CONCLUSIONS: CH is lower in moderate/severe OSAS than in normal/mild cases. This may be another link between OSAS and the development of glaucoma; further studies are indicated to determine the significance of this connection.


Asunto(s)
Córnea/fisiopatología , Enfermedades de la Córnea/etiología , Presión Intraocular , Apnea Obstructiva del Sueño/complicaciones , Adulto , Anciano , Fenómenos Biomecánicos , Córnea/diagnóstico por imagen , Enfermedades de la Córnea/diagnóstico , Enfermedades de la Córnea/fisiopatología , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Polisomnografía , Apnea Obstructiva del Sueño/diagnóstico , Apnea Obstructiva del Sueño/fisiopatología , Tonometría Ocular
15.
Muscle Nerve ; 54(2): 244-8, 2016 08.
Artículo en Inglés | MEDLINE | ID: mdl-26790132

RESUMEN

INTRODUCTION: We investigated the effects of demographic and physical factors on nerve conduction studies (NCS) in a multi-ethnic Asian population. METHODS: One hundred sixty-six healthy Malaysians of different ethnicities (51.2% women, aged 21-77 years) underwent NCS using a standard protocol. Correlations of various factors to NCS were determined, and multiple linear regression analysis was used to develop predictive equations for each parameter. RESULTS: Age and ethnicity were the commonest independent factors influencing NCS followed by gender, height, weight, and body mass index. Increasing age predicted a reduction in lower limb motor and all sensory nerve action potential amplitudes and decrease in motor and sensory (except sural) conduction velocities. Ethnic Indians had slower motor and sensory conduction velocities in several nerves and also had differences in action potential amplitudes. CONCLUSIONS: NCS parameters in multi-ethnic Malaysians were influenced independently by various demographic and physical factors, including ethnicity. Muscle Nerve 54: 244-248, 2016.


Asunto(s)
Potenciales de Acción/fisiología , Conducción Nerviosa/fisiología , Adulto , Anciano , Análisis de Varianza , Pueblo Asiatico , Demografía , Femenino , Voluntarios Sanos , Humanos , Masculino , Persona de Mediana Edad , Análisis de Regresión , Adulto Joven
16.
Genomics ; 105(4): 229-36, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25668517

RESUMEN

RAR-related orphan receptors A (RORA) and B (RORB) and voltage-gated sodium channel type 1 (SCN1A) genes play critical roles in the regulation of the circadian clock. Evidence has shown an association of RORA and RORB polymorphisms with susceptibility to autism and depression. Hence, we tested the association of RORA rs12912233, rs16943429, rs880626, rs2290430, and rs12900948; RORB rs1157358, rs7022435, rs3750420, and rs3903529; and SCN1A rs3812718 with epilepsy risk in the Malaysians. DNA was genotyped in 1789 subjects (39% epilepsy patients) by using MassARRAY (Sequenom). Significant association was obtained for rs12912233 in Malaysian Chinese (p=0.003). Interaction between rs12912233-rs880626 and rs3812718 was associated with the epilepsy risk in the subjects overall (p=0.001). Results show that RORA rs12912233 alone might be a possible risk variant for epilepsy in Malaysian Chinese, but that, together with RORA rs880626 and SCN1A rs3812718, this polymorphism may have a synergistic effect in the epilepsy risk in Malaysians.


Asunto(s)
Epilepsia/genética , Epistasis Genética , Predisposición Genética a la Enfermedad , Canal de Sodio Activado por Voltaje NAV1.1/genética , Miembro 1 del Grupo F de la Subfamilia 1 de Receptores Nucleares/genética , Polimorfismo de Nucleótido Simple , Adolescente , Adulto , Estudios de Casos y Controles , Epilepsia/epidemiología , Femenino , Humanos , Malasia , Masculino , Persona de Mediana Edad , Miembro 2 del Grupo F de la Subfamilia 1 de Receptores Nucleares/genética , Riesgo , Adulto Joven
17.
Am J Med Genet B Neuropsychiatr Genet ; 171(6): 839-47, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-27174169

RESUMEN

PARK16 was identified as a risk factor for Parkinson's disease in a Japanese cohort; however, subsequent studies in the other populations including the Chinese, European, Caucasian, and Chilean have shown a protective role instead. To investigate this locus in our Malaysian cohort, 1,144 individuals were screened for five SNPs in the PARK16 locus and logistic regression analysis showed that the A allele of the rs947211 SNP reduced the risk of developing PD via a recessive model (Odds ratio 0.57, P-value 0.0003). Pooled analysis with other Asian studies showed that A allele of the rs947211 SNP decreased the risk of developing PD via a recessive model (Odds ratio 0.71, P-value 0.0001). In addition, when meta-analysis was performed with other Asian population, three SNPs (rs823128, rs823156, and rs11240572) reduced risk of developing PD via a dominant model. © 2016 Wiley Periodicals, Inc.


Asunto(s)
Enfermedad de Parkinson/genética , Adulto , Anciano , Anciano de 80 o más Años , Alelos , Etnicidad , Femenino , Estudios de Asociación Genética , Predisposición Genética a la Enfermedad , Estudio de Asociación del Genoma Completo , Humanos , Malasia , Masculino , Persona de Mediana Edad , Enfermedad de Parkinson/metabolismo , Enfermedad de Parkinson/fisiopatología , Polimorfismo de Nucleótido Simple/genética , Factores de Riesgo
19.
Epilepsia ; 56(5): 667-73, 2015 May.
Artículo en Inglés | MEDLINE | ID: mdl-25823580

RESUMEN

The Asia-Oceanian region is the most populous region in the world. Although there has been substantial economic development and improvement in health services in recent years, epilepsy remains generally an underrecognized and understudied condition. To help promote research in the region, the Commission on Asian and Oceanian Affairs (CAOA) of the International League Against Epilepsy (ILAE) appointed the Research Task Force (RTF) to facilitate the development of research priorities for the region. Research that focuses on issues that are unique or of particular importance in the Asia-Oceanian region is encouraged, and that captures the impact of the dynamic socioeconomic changes taking place in the region is emphasized. Based on these considerations, we propose research "dimensions" as priorities within the Asia-Oceanian region. These are studies (1) that would lead to fuller appreciation of the health burden of epilepsy, particularly the treatment gap; (2) that would lead to better understanding of the causes of epilepsy; (3) that would alleviate the psychosocial consequences of epilepsy; (4) that would develop better therapies and improved therapeutic outcomes; and (5) that would improve the research infrastructure.


Asunto(s)
Epilepsia/terapia , Prioridades en Salud , Investigación , Comités Consultivos , Asia/epidemiología , Epilepsia/epidemiología , Prioridades en Salud/estadística & datos numéricos , Prioridades en Salud/tendencias , Humanos , Cooperación Internacional , Oceanía/epidemiología
20.
Epilepsy Behav ; 45: 21-30, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25794681

RESUMEN

PURPOSE: This study aimed to explore positive and negative factors affecting the employability in patients with uncontrolled seizures. METHOD: Semistructured interviews with 21 patients with uncontrolled seizures were analyzed using interpretative phenomenological analysis. RESULT: Eleven (52.4%) of the participants interviewed were employed; 7 were holding full-time position with more than 4years of working experience. The mean age was 34.6years, 71.4% were female, 38% were married, 71.4% had at least 11years of education, 38% had a driving license, 19% received government monetary aid, 66.7% had seizure onset before reaching 17years of age, 66.7% experienced monthly seizures, and 76% were on polytherapy. A total of 6 main themes were found to be affecting the employability among people with uncontrolled seizures: (a) ability to work; (b) intention to work; (c) support and stigma at workplace; (d) family support, overdependence, and protection; (e) life event; and (f) government and welfare support. Subthemes under the main theme ability to work included education, cognitive and physical functions, ability to continue working after seizures, ability to travel to work, self-perceived ability to work, and ability to cope with stress. Many shared the same idea that employment is important, but their intention to work varied. The employed group tended to work for a future goal and self-satisfaction, and the unemployed group tended to have no or lack intention to work. Positive factors were noted in the following themes: ability to work; intention to work; support and stigma at workplace; and family support, overdependence, and protection. CONCLUSION: There were internal and external factors affecting the employability among people with uncontrolled seizures both positively and negatively. Positive internal factors such as ability and intention to work require further exploration.


Asunto(s)
Conducción de Automóvil/psicología , Empleo/psicología , Convulsiones/psicología , Autoimagen , Desempleo/psicología , Adulto , Femenino , Humanos , Masculino , Matrimonio , Persona de Mediana Edad , Estigma Social , Apoyo Social
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