1
|
Antaya TC, Espino-Alvarado PH, Oiamo T, Wilk P, Speechley KN, Burneo JG. Association of outdoor air and noise pollution with unprovoked seizures and new onset epilepsy: A systematic review and meta-analysis. Epilepsia 2024. [PMID: 38776166 DOI: 10.1111/epi.18010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 05/24/2024]
Abstract
Research has indicated that certain environmental exposures may increase the risk of unprovoked seizures and new onset epilepsy. This study aimed to synthesize the literature that has estimated the associations between short- and long-term exposure to outdoor air and noise pollution and the risk of unprovoked seizures and new onset epilepsy. We searched Embase, MEDLINE, Scopus, Web of Science, BIOSIS Previews, Latin American and Caribbean Health Sciences Literature, Proquest Dissertations and Theses, conference abstracts, and the gray literature and conducted citation tracing in June 2023. Observational and ecological studies assessing the associations of air and noise pollution with unprovoked seizures or new onset epilepsy were eligible. One reviewer extracted summary data. Using fixed and random effects models, we calculated the pooled risk ratios (RRs) for the studies assessing the associations between short-term exposure to air pollution and unprovoked seizures. Seventeen studies were included, 16 assessing the association of air pollution with seizures and one with epilepsy. Eight studies were pooled quantitatively. Ozone (O3; RR = .99, 95% confidence interval [CI] = .99-.99) and nitrogen dioxide (NO2) exposure adjusted for particulate matter (RR = 1.02, 95% CI = 1.01-1.02) on the same day, and carbon monoxide (CO) exposure 2 days prior (RR = 1.12, 95% CI = 1.02-1.22), were associated with seizure risk. A single study of air pollution and epilepsy did not report a significant association. The risk of bias and heterogeneity across studies was moderate or high. Short-term exposure to O3, NO2, and CO may affect the risk of seizures; however, the effect estimates for O3 and NO2 were minimal. Additional research should continue to explore these and the associations between outdoor air pollution and epilepsy and between noise pollution and seizures and epilepsy.
Collapse
Affiliation(s)
- Tresah C Antaya
- Department of Epidemiology and Biostatistics, Western University, London, Ontario, Canada
- Neuroepidemiology Research Unit, Western University, London, Ontario, Canada
- Lawson Health Research Institute, London, Ontario, Canada
| | - Poul H Espino-Alvarado
- Lawson Health Research Institute, London, Ontario, Canada
- Department of Clinical Neurological Sciences, Western University, London, Ontario, Canada
| | - Tor Oiamo
- Department of Geography and Environmental Studies, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Piotr Wilk
- Department of Epidemiology and Biostatistics, Western University, London, Ontario, Canada
- Lawson Health Research Institute, London, Ontario, Canada
- Department of Paediatrics, Western University, London, Ontario, Canada
| | - Kathy N Speechley
- Department of Epidemiology and Biostatistics, Western University, London, Ontario, Canada
- Lawson Health Research Institute, London, Ontario, Canada
- Department of Paediatrics, Western University, London, Ontario, Canada
| | - Jorge G Burneo
- Department of Epidemiology and Biostatistics, Western University, London, Ontario, Canada
- Neuroepidemiology Research Unit, Western University, London, Ontario, Canada
- Lawson Health Research Institute, London, Ontario, Canada
- Department of Clinical Neurological Sciences, Western University, London, Ontario, Canada
| |
Collapse
|
2
|
Zhou X, Yang Y, Tai Z, Zhang H, Yang J, Luo Z, Xu Z. The mechanism of mitochondrial autophagy regulating Clathrin-mediated endocytosis in epilepsy. Epilepsia Open 2024. [PMID: 38700951 DOI: 10.1002/epi4.12945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 03/10/2024] [Accepted: 03/31/2024] [Indexed: 05/05/2024] Open
Abstract
OBJECTIVE The objective of this study is to determine whether inhibition of mitophagy affects seizures through Clathrin-mediated endocytosis (CME). METHODS Pentylenetetrazol (PTZ) was intraperitoneally injected daily to establish a chronic PTZ-kindled seizure. The Western blot (WB) was used to compare the differences in Parkin protein expression between the epilepsy group and the control group. Immunofluorescence was used to detect the expression of MitoTracker and LysoTracker. Transferrin-Alexa488 (Tf-A488) was injected into the hippocampus of mice. We evaluated the effect of 3-methyladenine (3-MA) on epilepsy behavior through observation in PTZ-kindled models. RESULTS The methylated derivative of adenine, known as 3-MA, has been extensively utilized in the field of autophagy research. The transferrin protein is internalized from the extracellular environment into the intracellular space via the CME pathway. Tf-A488 uses a fluorescent marker to track CME. Western blot showed that the expression of Parkin was significantly increased in the PTZ-kindled model (p < 0.05), while 3-MA could reduce the expression (p < 0.05). The fluorescence uptake of MitoTracker and LysoTracker was increased in the primary cultured neurons induced by magnesium-free extracellular fluid (p < 0.05); the fluorescence uptake of Tf-A488 was significantly decreased in the 3-MA group compared with the control group (p < 0.05). Following hippocampal injection of Tf-A488, both the epilepsy group and the 3-MA group exhibited decreased fluorescence uptake, with a more pronounced effect observed in the 3-MA group. Inhibition of mitophagy by 3-MA from day 3 to day 9 progressively exacerbated seizure severity and shortened latency. SIGNIFICANCE It is speculated that the aggravation of seizures by 3-MA may be related to the failure to remove damaged mitochondria in time and effectively after inhibiting mitochondrial autophagy, affecting the vesicle endocytosis function of CME and increasing the susceptibility to epilepsy. SUMMARY Abnormal mitophagy was observed in a chronic pentylenetetrazol-induced seizure model and a Mg2+-free-induced spontaneous recurrent epileptiform discharge model. A fluorescent transferrin marker was utilized to track clathrin-mediated endocytosis. Using an autophagy inhibitor (3-methyladenine) on primary cultured neurons, we discovered that inhibition of autophagy led to a reduction in fluorescent transferrin uptake, while impairing clathrin-mediated endocytosis function mediated by mitophagy. Finally, we examined the effects of 3-methyladenine in an animal model of seizures showing that it exacerbated seizure severity. Ultimately, this study provides insights into potential mechanisms through which mitophagy regulates clathrin-mediated endocytosis in epilepsy.
Collapse
Affiliation(s)
- Xuejiao Zhou
- Department of Neurology, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration, Zunyi Medical University, Zunyi, China
| | - Yu Yang
- Department of Neurology, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Zhenzhen Tai
- Department of Neurology, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Haiqing Zhang
- Department of Neurology, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Juan Yang
- Department of Neurology, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Zhong Luo
- Department of Neurology, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Zucai Xu
- Department of Neurology, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration, Zunyi Medical University, Zunyi, China
- Key Laboratory of Brain Science, Zunyi Medical University, Zunyi, China
| |
Collapse
|
3
|
Yang L, Sun L, Chu W, Zhu Y, Wu G. Study of the Impact of Air Pollution on Convulsions in Children: A Hospital-Based Retrospective Study in Hangzhou, China. Clin Pediatr (Phila) 2023; 62:1186-1192. [PMID: 36797840 DOI: 10.1177/00099228231154059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
BACKGROUND To investigate the relationship between the occurrence of convulsions in children and air pollution in Hangzhou. METHODS From January 1, 2018, to December 31, 2020, 775 children admitted with convulsion to the pediatric outpatient clinic of The Affiliated Hospital of Hangzhou Normal University (Hangzhou, China) were enrolled in this study. The clinical data and the corresponding weather data of the day in Hangzhou were collected and analyzed. Also, the monthly etiological classification of convulsions and the monthly average air data of Hangzhou were statistically analyzed. RESULTS The highest incidence of convulsion was observed in children 1 to 2 years old, and higher in boys than in girls. The top three main causes were febrile seizure, benign infantile convulsion with mild gastroenteritis, and epilepsy. Among the meteorological factors, the increase in the level of 2.5 micron particulate matter (PM 2.5) in the air per month led to an increase in the number of patients with febrile seizure, benign infantile convulsion with mild gastroenteritis, and epilepsy, where the increase of ozone in 8 hours (O3-8h) per month led to a decrease in the number of patients with such conditions. CONCLUSIONS PM2.5, PM10, and SO2 are the main meteorological factors affecting the occurrence of convulsions in children in Hangzhou, and PM2.5 and SO2 are risk factors. The increase in the level of PM2.5 in the air per month could increase occurrence of child convulsions, but the increase of O3-8h per month could decrease occurrence of child convulsions.
Collapse
Affiliation(s)
- Lin Yang
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - LiXia Sun
- Zhejiang University of Water Resources and Electric Power, Hangzhou, China
| | - Wei Chu
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - YaFei Zhu
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - GuangSheng Wu
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| |
Collapse
|
4
|
Li X, Sun S, Yan C, Liu X. Interaction between COVID-19 and epilepsy during the omicron surge: A cross-sectional survey conducted in China tertiary hospital. Epilepsy Behav Rep 2023; 23:100613. [PMID: 37501889 PMCID: PMC10368756 DOI: 10.1016/j.ebr.2023.100613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/30/2023] [Accepted: 07/06/2023] [Indexed: 07/29/2023] Open
Abstract
Objective It is unclear whether patients with epilepsy are more susceptible to SARS-CoV-2 infection, whether they experience more severe manifestations of COVID-19, and whether seizures worsen after SARS-CoV-2 infection. Our study aims to explore these points and provide comprehensive and practical guidance for patients with epilepsy. Methods We designed a questionnaire to collect variables from epilepsy patients. We used the Chi-square test, Fisher's exact test, or Mann-Whitney U test to analyze differences between the two groups. Multiple logistic regressions were employed to determine the risk factors for relevant outcome variables. Results We identified a total of 181 patients, with 74% (n = 134) reporting COVID-19. The patients' educational level was found to be a risk factor for COVID-19 (OR = 0.33, 95% CI 0.14-0.80, P = 0.013). When comparing seizure frequency changes between epilepsy patients with and without COVID-19, no statistically significant difference was observed (P > 0.05). However, an increase in seizure frequency was significantly associated with higher levels of anxiety (P < 0.001) and depression (P < 0.005). Conclusion The risk of COVID-19 infection may be increased in patients with epilepsy. COVID-19 infection does not seem to worsen seizures in epilepsy patients. Patients with epilepsy rarely develop more severe clinical manifestations of COVID-19 after SARS-CoV-2 infection. During the COVID-19 pandemic, patients with epilepsy who also suffer from anxiety and depression may experience an increase in the frequency of their seizures.
Collapse
Affiliation(s)
- Xiangliang Li
- Department of Neurology, Qilu Hospital of Shandong University, Jinan, China
| | - Sujuan Sun
- Department of Neurology, Qilu Hospital of Shandong University, Jinan, China
| | - Cuihua Yan
- Department of Neurology, Qilu Hospital of Shandong University, Jinan, China
| | - Xuewu Liu
- Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| |
Collapse
|
5
|
Luo Z, Xu M, Zhang L, Zhang H, Xu Z, Xu Z. Glycyrrhizin regulates the HMGB1/P38MAPK signalling pathway in status epilepticus. Mol Med Rep 2023; 27:45. [PMID: 36633134 PMCID: PMC9887508 DOI: 10.3892/mmr.2023.12932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 12/07/2022] [Indexed: 01/07/2023] Open
Abstract
In recent decades, studies have reported that inflammation serves key roles in epilepsy and that high mobility group box protein‑1 (HMGB1) may be involved in status epilepticus. However, it has not been reported whether HMGB1 participates in the pathogenesis of status epilepticus through the regulation of the p38 mitogen‑activated protein kinase (p38MAPK) signalling pathway. In the present study, Sprague‑Dawley rats were randomly divided into four groups as follows: Control, status epilepticus (SE), dimethyl sulfoxide treatment (DMSO + SE), and glycyrrhizin treatment (GL + SE) groups. Behavioural changes were then evaluated using the Racine score. In the hippocampus, the protein expression levels of HMGB1 were assessed using western blotting, the neuronal damage was evaluated using haematoxylin and eosin staining and transmission electron microscopy, and the activation of microglia was assessed using immunochemistry and immunofluorescence. The results demonstrated that, in the hippocampal region, HMGB1 existed in neurons and astrocytes and the protein expression levels of HMGB1, p38MAPK and phosphorylated‑p38MAPK were significantly inhibited after treatment with GL. Furthermore, GL could alleviate neuronal injury in the CA1 region of the hippocampus and prevented HMGB1 translocation from the nucleus into the cytoplasm in these areas. These findings expand the understanding of how HMGB1 may participate in SE and lay a foundation for evaluation of HMGB1 as a drug target.
Collapse
Affiliation(s)
- Zhong Luo
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Meng Xu
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Linhai Zhang
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Haiqing Zhang
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Zucai Xu
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China,Correspondence to: Professor Zucai Xu or Professor Zhongxiang Xu, Department of Neurology, Affiliated Hospital of Zunyi Medical University, 149 Dalian Road, Zunyi, Guizhou 563003, P.R. China, E-mail: , E-mail:
| | - Zhongxiang Xu
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China,Correspondence to: Professor Zucai Xu or Professor Zhongxiang Xu, Department of Neurology, Affiliated Hospital of Zunyi Medical University, 149 Dalian Road, Zunyi, Guizhou 563003, P.R. China, E-mail: , E-mail:
| |
Collapse
|
6
|
Li D, Zhang L, Tuo J, Zhang F, Tai Z, Liu X, Qiu X, Zhang H, Yang J, Wang J, Luo Z, Xu Z. PGC-1α Affects Epileptic Seizures by Regulating Mitochondrial Fusion in Epileptic Rats. Neurochem Res 2022; 48:1361-1369. [PMID: 36454394 DOI: 10.1007/s11064-022-03834-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 11/09/2022] [Accepted: 11/22/2022] [Indexed: 12/05/2022]
Abstract
BACKGROUND Peroxisome proliferator-activated receptor γ coactivator-1α (PGC-1α), regulated by AMPK, is an important regulator of mitochondrial fusion. At present, whether the AMPK/PGC-1α signaling pathway regulates mitochondrial dynamics in epileptic rats is still unknown. METHODS Adult male Sprague-Dawley (SD) rats were randomly divided into fourgroups: the control group (0.9% saline, n = 5), the EP groups (lithium-pilocarpine was used to induce epilepsy, and tissues were harvested at 6 and 24 h, every time point, n = 5), the EP + Compound C group (the specific inhibitor of PGC-1α, 15 mg/kg in 2% DMSO, n = 5), and the EP + DMSO group (0.9% saline + 2% DMSO, n = 5). To investigate whether PGC-1α participates in seizures by regulating the expression of mitofusin1/2(MFN1/2)in rats. RESULTS In this study, the behavioral results indicate that the seizure susceptibility of the rats to epilepsy was increased when the expression of PGC-1α was inhibited. Subsequently, Western blot results suggested that the expression level of both MFN1 and MFN2 in the hippocampus was higher at 6 and 24 h after an epileptic seizure. Besides, the expression of PGC-1α and MFN2 was significantly decreased in the hippocampus when the epileptic rats were treated with Compound C. Furthermore, the immunofluorescence analysis of the localization of MFN1/2 and PGC-1α showed that MFN1/2 was mainly expressed in neurons but not astrocytes in the hippocampus and cerebral cortex of rats. Meanwhile, PGC-1α colocalized with the excitatory post-synaptic marker PSD95, suggesting that PGC-1α may regulate the seizure susceptibility of the rats by mediating excitatory post-synaptic signaling. CONCLUSION The AMPK/PGC-1α signaling pathway may play an important role in the lithium-pilocarpine-induced epileptic rat model by mediating the expression of fusion proteins.
Collapse
|
7
|
Air Pollution and Hospital Admission for Epilepsy in Kerman, Iran. HEALTH SCOPE 2022. [DOI: 10.5812/jhealthscope-124245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background: This study aimed to investigate the relation between air pollution and epilepsy admissions in Kerman, Iran. Methods: In this ecological study, the concentrations of ambient air pollutants and meteorological data were obtained from Kerman Environmental Protection Agency and Kerman Meteorology Organization, respectively. Additionally, epilepsy admission data were obtained from Kerman’s Shafa hospital epilepsy registry. Generalized additive models with lags up to 7 days were used to estimate rate ratios (RRs). Results: Within 2008 to 2020, 894 epilepsy admissions occurred in Kerman, 498 cases (55.7%) of whom were male. The strongest relations of epilepsy admission were observed in the over 59-year group for carbon monoxide (CO) in lag 0 (RR = 2.1455, 95% CI: 1.5823 - 2.9091), nitrogen dioxide (NO2) in lag 0 (RR = 1.0409, 95% CI: 1.0282 - 1.0537), and particulate matter under 2.5 microns (PM2.5) in lag 5 (RR = 1.0157, 95% CI: 1.0062 - 1.0252). There were also significant associations for particulate matter under 10 microns (PM10) in the under 18-year group in lag 2 (RR = 1.0064, 95% CI: 1.0029 - 1.0098), ozone in lag 0 (RR = 0.9671, 95% CI: 0.9581 - 0.9761), and sulfur dioxide in lag 5 (RR = 0.9937, 95% CI: 0.9891 - 0.9983). Conclusions: Exposure to CO, NO2, PM2.5, or PM10 air pollutants might be a risk factor for epilepsy admissions in Kerman. Epilepsy patients should better stay away from exposure to polluted air. Staying at home on polluted days or residing in areas with less air pollution might be an option.
Collapse
|
8
|
Zhou X, Chen Q, Huang H, Zhang J, Wang J, Chen Y, Peng Y, Zhang H, Zeng J, Feng Z, Xu Z. Inhibition of p38 MAPK regulates epileptic severity by decreasing expression levels of A1R and ENT1. Mol Med Rep 2020; 22:5348-5357. [PMID: 33174009 PMCID: PMC7647013 DOI: 10.3892/mmr.2020.11614] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 09/08/2020] [Indexed: 12/16/2022] Open
Abstract
Epilepsy is a chronic nervous system disease. Excessive increase of the excitatory neurotransmitter glutamate in the body results in an imbalance of neurotransmitters and excessive excitation of neurons, leading to epileptic seizures. Long‑term recurrent seizures lead to behavior and cognitive changes, and even increase the risk of death by 2‑ to 3‑fold relative to the general population. Adenosine A1 receptor (A1R), a member of the adenosine system, has notable anticonvulsant effects, and adenosine levels are controlled by the type 1 equilibrative nucleoside transporter (ENT1); in addition the p38 MAPK signaling pathway is involved in the regulation of ENT1, although the effect of its inhibitors on the expression levels of A1R and ENT1 is unclear. Therefore, in the present study, SB203580 was used to inhibit the p38 MAPK signaling pathway in rats, and the expression levels of A1R and ENT1 in the brain tissue of rats with acute LiCl‑pilocarpine‑induced status epilepticus was detected. SB203580 decreased pathological damage of hippocampal neurons, prolonged seizure latency, reduced the frequency of seizures, and decreased levels of A1R and ENT1 protein in rats.
Collapse
Affiliation(s)
- Xuejiao Zhou
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Qian Chen
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Hao Huang
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Jun Zhang
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Jing Wang
- Department of Prevention and Health Care, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Ya Chen
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Yan Peng
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Haiqing Zhang
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Junwei Zeng
- Department of Physiology, Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Zhanhui Feng
- Department of Neurology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Zucai Xu
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| |
Collapse
|
9
|
Fernandes MJS, Carletti CO, Sierra de Araújo LF, Santos RC, Reis J. Respiratory gases, air pollution and epilepsy. Rev Neurol (Paris) 2019; 175:604-613. [PMID: 31519304 DOI: 10.1016/j.neurol.2019.07.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 07/21/2019] [Accepted: 07/23/2019] [Indexed: 12/29/2022]
Abstract
A growing number of studies have shown that exposure to air pollutants such as particulate matter and gases can cause cardiovascular, neurodegenerative and psychiatric diseases. The severity of the changes depends on several factors such as exposure time, age and gender. Inflammation has been considered as one of the main factors associated with the generation of these diseases. Here we present some cellular mechanisms activated by air pollution that may represent risk factors for epilepsy and drug resistance associated to epilepsy.
Collapse
Affiliation(s)
- M J S Fernandes
- Department of Neurology and Neurosurgery, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil.
| | - C O Carletti
- Department of Neurology and Neurosurgery, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - L F Sierra de Araújo
- Department of Neurology and Neurosurgery, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - R C Santos
- Department of Neurology and Neurosurgery, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - J Reis
- Service de Neurologie, Centre Hospitalier Universitaire, Hôpital de Hautepierre, 1, avenue Molière, 67200 Strasbourg, France
| |
Collapse
|
10
|
Fluegge K, Fluegge K. Air pollution and risk of hospitalization for epilepsy: the role of farm use of nitrogen fertilizers and emissions of the agricultural air pollutant, nitrous oxide. ARQUIVOS DE NEURO-PSIQUIATRIA 2017; 75:614-619. [DOI: 10.1590/0004-282x20170107] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 06/07/2017] [Indexed: 12/15/2022]
Abstract
ABSTRACT The link between various air pollutants and hospitalization for epilepsy has come under scrutiny. We have proposed that exposure to air pollution and specifically the pervasive agricultural air pollutant and greenhouse gas, nitrous oxide (N2O), may provoke susceptibility to neurodevelopmental disorders. Evidence supports a role of N2O exposure in reducing epileptiform seizure activity, while withdrawal from the drug has been shown to induce seizure-like activity. Therefore, we show here that the statewide use of anthropogenic nitrogen fertilizers (the most recognized causal contributor to environmental N2O burden) is significantly negatively associated with hospitalization for epilepsy in all three pre-specified hospitalization categories, even after multiple pollutant comparison correction (p<.007), while the other identified pollutants were not consistently statistically significantly associated with hospitalization for epilepsy. We discuss potential neurological mechanisms underpinning this association between air pollutants associated with farm use of anthropogenic nitrogen fertilizers and hospitalization for epilepsy.
Collapse
Affiliation(s)
| | - Kyle Fluegge
- Institute of Health and Environmental Research, USA; New York City Department of Health and Mental Hygiene, USA
| |
Collapse
|
11
|
Wu XN, Zhang T, Wang J, Liu XY, Li ZS, Xiang W, Du WQ, Yang HJ, Xiong TG, Deng WT, Peng KR, Pan SY. Magnetic resonance diffusion tensor imaging following major ozonated autohemotherapy for treatment of acute cerebral infarction. Neural Regen Res 2016; 11:1115-21. [PMID: 27630695 PMCID: PMC4994454 DOI: 10.4103/1673-5374.187046] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Major ozonated autohemotherapy has been shown to promote recovery of upper limb motor function in patients with acute cerebral infarction, but whether major ozonated autohemotherapy affects remote injury remains poorly understood. Here, we assumed that major ozonated autohemotherapy contributes to recovery of clinical function, possibly by reducing remote injury after acute cerebral infarction. Sixty acute cerebral infarction patients aged 30-80 years were equally and randomly allocated to ozone treatment and control groups. Patients in the ozone treatment group received medical treatment and major ozonated autohemotherapy (47 mg/L, 100 mL ozone) for 10 ± 2 days. Patients in the control group received medical treatment only. National Institutes of Health Stroke Scale score, modified Rankin scale score, and reduced degree of fractional anisotropy values of brain magnetic resonance diffusion tensor imaging were remarkably decreased, brain function improved, clinical efficiency significantly increased, and no obvious adverse reactions detected in the ozone treatment group compared with the control group. These findings suggest that major ozonated autohemotherapy promotes recovery of neurological function in acute cerebral infarction patients by reducing remote injury, and additionally, exhibits high safety.
Collapse
Affiliation(s)
- Xiao-Na Wu
- Department of Neurology, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China; Department of Neurology, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong Province, China
| | - Tao Zhang
- Department of Orthopedics, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong Province, China
| | - Jun Wang
- Department of MRI, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong Province, China
| | - Xiao-Yan Liu
- Department of Neurology, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong Province, China
| | - Zhen-Sheng Li
- Department of Neurology, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong Province, China
| | - Wei Xiang
- Department of Neurology, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong Province, China
| | - Wei-Qing Du
- Department of MRI, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong Province, China
| | - Hong-Jun Yang
- Department of Neurology, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong Province, China
| | - Tie-Gen Xiong
- Department of Neurology, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong Province, China
| | - Wen-Ting Deng
- Department of Neurology, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong Province, China
| | - Kai-Run Peng
- Department of Neurology, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong Province, China
| | - Su-Yue Pan
- Department of Neurology, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China
| |
Collapse
|
12
|
Xu C, Fan YN, Kan HD, Chen RJ, Liu JH, Li YF, Zhang Y, Ji AL, Cai TJ. The Novel Relationship between Urban Air Pollution and Epilepsy: A Time Series Study. PLoS One 2016; 11:e0161992. [PMID: 27571507 PMCID: PMC5003346 DOI: 10.1371/journal.pone.0161992] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 08/16/2016] [Indexed: 01/15/2023] Open
Abstract
Background and purpose The data concerning the association between environmental pollution and epilepsy attacks are limited. The aim of this study was to explore the association between acute air pollution exposure and epilepsy attack. Methods A hospital record-based study was carried out in Xi’an, a heavily-polluted metropolis in China. Daily baseline data were obtained. Time-series Poisson regression models were applied to analyze the association between air pollution and epilepsy. Results A 10 μg/m3 increase of NO2, SO2, and O3 concentrations corresponded to 3.17% (95%Cl: 1.41%, 4.93%), 3.55% (95%Cl: 1.93%, 5.18%), and -0.84% (95%Cl: -1.58%, 0.09%) increase in outpatient-visits for epilepsy on the concurrent days, which were significantly influenced by sex and age. The effects of NO2 and SO2 would be stronger when adjusted for PM2.5. As for O3, a -1.14% (95%Cl: -1.90%, -0.39%) decrease was evidenced when adjusted for NO2. The lag models showed that the most significant effects were evidenced on concurrent days. Conclusions We discovered previously undocumented relationships between short-term air pollution exposure and epilepsy: while NO2 and SO2 were positively associated with outpatient-visits of epilepsy, O3 might be associated with reduced risk.
Collapse
Affiliation(s)
- Chen Xu
- Department of Epidemiology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Yan-Ni Fan
- Information Department Medical Record Room, Second Affiliated Hospital, Fourth Military Medical University, Xi’an, China
| | - Hai-Dong Kan
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai, China
| | - Ren-Jie Chen
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai, China
| | - Jiang-Hong Liu
- School of Nursing, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Ya-Fei Li
- Department of Epidemiology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Yao Zhang
- Department of Epidemiology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Ai-Ling Ji
- School of Public Health, Fourth Military Medical University, Xi'an, China
- * E-mail: ; (TJC); (ALJ)
| | - Tong-Jian Cai
- Department of Epidemiology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
- * E-mail: ; (TJC); (ALJ)
| |
Collapse
|