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Arnett S, Chew SH, Leitner U, Hor JY, Paul F, Yeaman MR, Levy M, Weinshenker BG, Banwell BL, Fujihara K, Abboud H, Dujmovic Basuroski I, Arrambide G, Neubrand VE, Quan C, Melamed E, Palace J, Sun J, Asgari N, Broadley SA. Sex ratio and age of onset in AQP4 antibody-associated NMOSD: a review and meta-analysis. J Neurol 2024:10.1007/s00415-024-12452-8. [PMID: 38958756 DOI: 10.1007/s00415-024-12452-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/15/2024] [Accepted: 05/16/2024] [Indexed: 07/04/2024]
Abstract
BACKGROUND Aquaporin-4 (AQP4) antibody-associated neuromyelitis optica spectrum disorder (NMOSD) is an antibody-mediated inflammatory disease of the central nervous system. We have undertaken a systematic review and meta-analysis to ascertain the sex ratio and mean age of onset for AQP4 antibody associated NMOSD. We have also explored factors that impact on these demographic data. METHODS A systematic search of databases was conducted according to the PRISMA guidelines. Articles reporting sex distribution and age of onset for AQP4 antibody-associated NMSOD were reviewed. An initially inclusive approach involving exploration with regression meta-analysis was followed by an analysis of just AQP4 antibody positive cases. RESULTS A total of 528 articles were screened to yield 89 articles covering 19,415 individuals from 88 population samples. The female:male sex ratio was significantly influenced by the proportion of AQP4 antibody positive cases in the samples studied (p < 0.001). For AQP4 antibody-positive cases the overall estimate of the sex ratio was 8.89 (95% CI 7.78-10.15). For paediatric populations the estimate was 5.68 (95% CI 4.01-8.03) and for late-onset cases, it was 5.48 (95% CI 4.10-7.33). The mean age of onset was significantly associated with the mean life expectancy of the population sampled (p < 0.001). The mean age of onset for AQP4 antibody-positive cases in long-lived populations was 41.7 years versus 33.3 years in the remainder. CONCLUSIONS The female:male sex ratio and the mean age of onset of AQP4 antibody-associated NMOSD are significantly higher than MS. The sex ratio increases with the proportion of cases that are positive for AQP4 antibodies and the mean age of onset increases with population life expectancy.
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Affiliation(s)
- Simon Arnett
- School of Medicine and Dentistry, Gold Coast Campus, Griffith University, Gold Coast, QLD, 4222, Australia.
- Department of Neurology, Gold Coast University Hospital, Southport, QLD, Australia.
| | - Sin Hong Chew
- School of Medicine and Dentistry, Gold Coast Campus, Griffith University, Gold Coast, QLD, 4222, Australia
- Department of Neurology, Gold Coast University Hospital, Southport, QLD, Australia
| | - Unnah Leitner
- School of Medicine and Dentistry, Gold Coast Campus, Griffith University, Gold Coast, QLD, 4222, Australia
| | - Jyh Yung Hor
- Department of Neurology, Penang General Hospital, George Town, Penang, Malaysia
| | - Friedemann Paul
- NeuroCure Clinical Research Center, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany
- Experimental and Clinical Research Center, Max Delbrueck Center for Molecular Medicine and Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Michael R Yeaman
- Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
- Department of Medicine, Divisions of Molecular Medicine & Infectious Diseases, Harbor-UCLA Medical Center, Torrance, CA, USA
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Michael Levy
- Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | | | - Brenda L Banwell
- Division of Child Neurology, Children's Hospital of Philadelphia, Department of Neurology and Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Kazuo Fujihara
- Department of Multiple Sclerosis Therapeutics, Fukushima Medical University and Multiple Sclerosis and Neuromyelitis Optica Center, Southern Tohoku Research Institute for Neuroscience, Koriyama, Japan
| | - Hesham Abboud
- Case Western Reserve University, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | | | - Georgina Arrambide
- Neurology-Neuroimmunology Department, Multiple Sclerosis Centre of Catalonia (Cemcat), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Catalonia, Spain
| | - Veronika E Neubrand
- Department of Cell Biology, Faculty of Sciences, University of Granada, Granada, Spain
| | - Chao Quan
- Department of Neurology, The National Centre for Neurological Disorders, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Esther Melamed
- Dell Medical School, University of Texas, Austin, TX, USA
| | - Jacqueline Palace
- Nuffield Department of Clinical Neurosciences, Oxford University Hospitals, Oxford, UK
- Department Clinical Neurology, John Radcliffe Hospital, Oxford, OX3 9DU, UK
| | - Jing Sun
- School of Medicine and Dentistry, Gold Coast Campus, Griffith University, Gold Coast, QLD, 4222, Australia
- Institute of Integrated Intelligence and Systems, Nathan Campus, Griffith University, Nathan, QLD, Australia
- Rural Health Research Institute, Charles Sturt University, Bathurst, NSW, Australia
| | - Nasrin Asgari
- Department of Neurology, Slagelse Hospital, Slagelse, Denmark
- Institutes of Regional Health Research and Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Simon A Broadley
- School of Medicine and Dentistry, Gold Coast Campus, Griffith University, Gold Coast, QLD, 4222, Australia
- Department of Neurology, Gold Coast University Hospital, Southport, QLD, Australia
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Darvishi L, Shaygannejad V, Mansourian M, Saneei P, Mirmosayyeb O, Safavi SM. The association between dietary inflammatory index and risk of neuromyelitis optica spectrum disorder: a case-control study. Nutr Neurosci 2024:1-8. [PMID: 38870095 DOI: 10.1080/1028415x.2024.2342154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
BACKGROUND AND AIM Neuromyelitis optica spectrum disorder (NMOSD) is a severe and rare inflammatory disease affecting the central nervous system through optic neuritis and transverse myelitis. Present study aimed to investigate the association between dietary inflammatory index (DII) and risk of NMOSD. METHODS In this case-control study, 30 NMOSD cases and 90 aged matched healthy individuals were recruited. Habitual dietary intakes were assessed by a validated 168-item food frequency questionnaire to calculate the DII score. A multiple adjusted regression was used to determine the odd ratio (OR) of NMOSD across DII tertiles. The Residual method was applied to adjust the energy intake. RESULTS Participants in the top of DII tertile were more likely to have NMOSD in the crude model compared to those with the lowest one (OR: 4.18; 95%CI: 1.43-12.21). It was the case when multivariable confounders were considered in adjustment model I (OR: 3.98; 95%CI: 1.34-11.82) and II (OR: 4.43; 95%CI: 1.36-14.38), such that, individuals with a greater DII score had 3.98 and 4.43-time higher risk of NMOSD in model I and II, respectively. CONCLUSION The Present study suggests that greater adherence to a pro-inflammatory diet may be associated with an increased risk of NMOSD.
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Affiliation(s)
- Leila Darvishi
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Vahid Shaygannejad
- Isfahan Neurosciences Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Marjan Mansourian
- Department of Epidemiology and Biostatistics, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Parvane Saneei
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Omid Mirmosayyeb
- Isfahan Neurosciences Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sayyed Morteza Safavi
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
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Ghazanfari Hashemi M, Talebi V, Abbasi Kasbi N, Abbasi M, Asgari N, Sahraian MA. T1 hypointense brain lesions in NMOSD and its relevance with disability: a single institution cross-sectional study. BMC Neurol 2024; 24:62. [PMID: 38347476 PMCID: PMC10860265 DOI: 10.1186/s12883-024-03550-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 01/28/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND T1 hypointense lesions are considered a surrogate marker of tissue destruction. Although there is a shortage of evidence about T1 hypointense brain lesions, black holes, in patients with Neuromyelitis Optica Spectrum Disorder (NMOSD), the clinical significance of these lesions is not well determined. OBJECTIVES The impact of T1 hypointense brain lesions on the clinical status and the disability level of patients with NMOSD was sought in this study. METHODS A total of 83 patients with the final diagnosis of NMOSD were recruited. Aquaporin-4 measures were collected. The expanded disability status scale (EDSS) and MRI studies were also extracted. T1 hypointense and T2/FLAIR hyperintense lesions were investigated. The correlation of MRI findings, AQP-4, and EDSS was assessed. RESULTS T1 hypointense brain lesions were detected in 22 patients. Mean ± SD EDSS was 3.7 ± 1.5 and significantly higher in patients with brain T1 hypointense lesions than those without them (p-value = 0.01). Noticeably, patients with more than four T1 hypointense lesions had EDSS scores ≥ 4. The presence of T2/FLAIR hyperintense brain lesions correlated with EDSS (3.6 ± 1.6 vs 2.3 ± 1.7; p-value = 0.01). EDSS was similar between those with and without positive AQP-4 (2.7 ± 1.6 vs. 3.2 ± 1.7; p-value = 0.17). Also, positive AQP-4 was not more prevalent in patients with T1 hypointense brain lesions than those without them (50.9 vs 45.4%; p-value = 0.8). CONCLUSION We demonstrated that the presence of the brain T1-hypointense lesions corresponds to a higher disability level in NMOSD.
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Affiliation(s)
- Mohamad Ghazanfari Hashemi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Neurology Department, Sina Hospital, Tehran, Iran
| | - Vahid Talebi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Neurology Department, Sina Hospital, Tehran, Iran
| | - Naghmeh Abbasi Kasbi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Neurology Department, Sina Hospital, Tehran, Iran
| | - Mehrshad Abbasi
- Department of Nuclear Medicine, Vali-Asr Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Nasrin Asgari
- Department of Neurology, Institutes of Regional Health Research and Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Mohammad Ali Sahraian
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Neurology Department, Sina Hospital, Tehran, Iran.
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Wang S, Wang L, Wang J, Zhu M. Causal relationships between susceptibility and severity of COVID-19 and neuromyelitis optica spectrum disorder (NMOSD) in European population: a bidirectional Mendelian randomized study. Front Immunol 2023; 14:1305650. [PMID: 38111568 PMCID: PMC10726038 DOI: 10.3389/fimmu.2023.1305650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 11/20/2023] [Indexed: 12/20/2023] Open
Abstract
Background Neurological disorders can be caused by viral infections. The association between viral infections and neuromyelitis optica spectrum disorder (NMOSD) has been well-documented for a long time, and this connection has recently come to attention with the occurrence of SARS-CoV-2 infection. However, the precise nature of the causal connection between NMOSD and COVID-19 infection remains uncertain. Methods To investigate the causal relationship between COVID-19 and NMOSD, we utilized a two-sample Mendelian randomization (MR) approach. This analysis was based on the most extensive and recent genome-wide association study (GWAS) that included SARS-CoV-2 infection data (122616 cases and 2475240 controls), hospitalized COVID-19 data (32519 cases and 2062805 controls), and data on severe respiratory confirmed COVID-19 cases (13769 cases and 1072442 controls). Additionally, we incorporated a GWAS meta-analysis comprising 132 cases of AQP4-IgG-seropositive NMOSD (NMO-IgG+), 83 cases of AQP4-IgG-seronegative NMOSD (NMO-IgG-), and 1244 controls. Results The findings of our study indicate that the risk of developing NMO-IgG+ is elevated when there is a genetic predisposition to SARS-CoV-2 infection (OR = 5.512, 95% CI = 1.403-21.657, P = 0.014). Furthermore, patients with genetically predicted NMOSD did not exhibit any heightened susceptibility to SARS-CoV2 infection, COVID-19 hospitalization, or severity. Conclusion our study using Mendelian randomization (MR) revealed, for the first time, that the presence of genetically predicted SARS-CoV2 infection was identified as a contributing factor for NMO-IgG+ relapses.
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Affiliation(s)
- Shengnan Wang
- Department of Neurology, Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Lijuan Wang
- Department of Neurology, Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Jianglong Wang
- First Operating Room, The First Hospital of Jilin University, Changchun, China
| | - Mingqin Zhu
- Department of Neurology, Neuroscience Center, The First Hospital of Jilin University, Changchun, China
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Wang S, Pan L, Wu R, Shao Y, Xue M, Zhu H, Min W, Zheng X, Liang Y, Zhu M. Oily fish and raw vegetable consumption can decrease the risk of AQP4-positive neuromyelitis optica spectrum disorders: a Mendelian-randomization study. Sci Rep 2023; 13:9372. [PMID: 37296187 PMCID: PMC10256733 DOI: 10.1038/s41598-023-36372-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 06/02/2023] [Indexed: 06/12/2023] Open
Abstract
Neuromyelitis optica spectrum disorders (NMOSD) are severe inflammatory disorders of the central nervous system targeting aquaporin-4 (AQP4). The risk factors for NMOSD remain to be determined, though they may be related to diet and nutrition. This study aimed to explore the possibility of a causal relationship between specific food intake and AQP4-positive NMOSD risk. The study followed a two-sample Mendelian randomization (MR) design. Genetic instruments and self-reported information on the intake of 29 types of food were obtained from a genome-wide association study (GWAS) on 445,779 UK Biobank participants. A total of 132 individuals with AQP4-positive NMOSD and 784 controls from this GWAS were included in our study. The associations were evaluated using inverse-variance-weighted meta-analysis, weighted-median analysis, and MR-Egger regression. A high consumption of oily fish and raw vegetables was associated with a decreased risk of AQP4-positive NMOSD (odds ratio [OR] = 1.78 × 10-16, 95% confidence interval [CI] = 2.60 × 10-25-1.22 × 10-7, p = 0.001; OR = 5.28 × 10-6, 95% CI = 4.67 × 10-11-0.598, p = 0.041, respectively). The results were consistent in the sensitivity analyses, and no evidence of directional pleiotropy was observed. Our study provides useful implications for the development of AQP4-positive NMOSD prevention strategies. Further research is needed to determine the exact causal relationship and mechanisms underlying the association between specific food intake and AQP4-positive NMOSD.
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Affiliation(s)
- Shengnan Wang
- Department of Neurology, Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Lin Pan
- Clinical College, Jilin University, Changchun, China
| | - Rui Wu
- Department of Neurology, Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Yanqing Shao
- Department of Neurology, Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Mengru Xue
- Department of Neurology, Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Hao Zhu
- Department of Hepatology, The First Hospital of Jilin University, Changchun, China
| | - Wanwan Min
- Department of Neurology, Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Xiangyu Zheng
- Department of Neurology, Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Yekun Liang
- Department of Cardiology, The First Hospital of Jilin University, Changchun, China
| | - Mingqin Zhu
- Department of Neurology, Neuroscience Center, The First Hospital of Jilin University, Changchun, China.
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Worldwide prevalence of neuromyelitis optica spectrum disorder (NMOSD) and neuromyelitis optica (NMO): a systematic review and meta-analysis. Neurol Sci 2023; 44:1905-1915. [PMID: 36745300 DOI: 10.1007/s10072-023-06617-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 01/10/2023] [Indexed: 02/07/2023]
Abstract
BACKGROUND Neuromyelitis optica spectrum disorder (NMOSD) is a progressive demyelinating disease of the central nervous system that has overlapping symptoms with multiple sclerosis (MS) but differs from it in a variety of ways. Previous studies have reported conflicting results trying to estimate the number of individuals affected by them which is why we designed this systematic review and meta-analysis to estimate the worldwide prevalence and incidence of NMOSD/NMO based on current evidence. METHODS We searched PubMed, Scopus, EMBASE, Web of Science, and gray literature including references from the identified studies, review studies, and conference abstracts which were published up to February 1, 2022. We used all MeSH terms pertaining to "NMOSD," "NMO," and all the terms on "prevalence," "incidence," and "epidemiology" to identify the search components. Pooled effect sizes were measured using random-effect model by DerSimonian-Laird. RESULTS The prevalence and incidence rates of NMOSD/NMO ranged from 0.07 to 10 and 0.029 to 0.880 per 100,000 population, respectively. The overall pooled prevalence of NMO per 100,000 population was 1.54 (I2: 98.4%, 95% CI: 1.13-1.96, P< 0.001) based on the 2006 criteria, 1.51 (I2: 99.4%, 95% CI: 1.21-1.81, P < 0.001) based on the 2015 criteria and 2.16 (I2: 89.4%, 95% CI: 1.46-2.86, P < 0.001) based on the 2006/2015 criteria. The overall annual incidence of NMO per 100,000 population was 0.155 (I2: 95%, 95% CI: 0.115-0.195, P < 0.001) based on the 2006 criteria and 0.278 (I2: 100%, 95% CI: 0.135-0.420, P < 0.001) based on the 2015 criteria. The prevalence rates were highest in French West Indies and South Korea, and lowest in Cuba and Australia, based on the 2006 and 2015 criteria, respectively. Also, the highest annual incidence rates were obtained for Sweden and Slovak republic and the lowest for Cuba and Australia based on the 2006 and 2015 criteria, respectively. All estimated rates were higher among females compared to males. CONCLUSION Although rare, NMOSD/NMO impact affected individuals in devastating ways. Several large-scale prospective studies are required to reach a comprehension of the epidemiological aspects of these notorious demyelinating conditions.
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Utilization of Multiple Sclerosis Therapies in the Middle East Over a Decade: 2009-2018. CNS Drugs 2021; 35:1097-1106. [PMID: 34164782 DOI: 10.1007/s40263-021-00833-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/31/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND The multiple sclerosis (MS) landscape has changed over the past two decades across the world and in the Middle East. The Middle East is an ethnically diverse region located between 12° and 42° of latitude and 35° and 54° of longitude and varying altitudes. The magnitude of the shifts observed in the epidemiology and management of MS differ in each region and from country to country. OBJECTIVES The aim of this study was to provide a clinicodemographic overview of the cohorts of patients contributed to MSBase, a large international MS registry, in the Middle East and describe disease-modifying treatment (DMT) utilization in the different countries within the region. Understanding the differences between these cohorts is integral to interpretation of the studies conducted using registry data and provides insight into clinical practice in these cohorts. METHODS The MSBase registry was searched for patients with MS or clinically isolated syndrome from the Middle Eastern countries with data captured between 2009 and 2018. In 2-year epochs, and with special focus on the most recent epoch (2017-2018), we explored the demographic, clinical characteristics and treatment exposures of the studied cohorts and reported the results using standard descriptive statistics. RESULTS Over the 10-year study period, 13,356 patients from 17 centers in 8 Middle Eastern countries fulfilled the inclusion criteria. The represented countries were Egypt, Iran, Kuwait, Lebanon, Oman, Saudi Arabia, Turkey and the United Arab Emirates. Overall, the represented cohort was young (median 36 years, quartiles 29-45) and captured relatively early after the onset of MS (median disease duration < 10 years, quartiles 3-12). The relapsing-remitting phenotype was the most prevalent phenotype in all countries (73-97%) and the highest proportion of progressive MS was reported in Saudi Arabia (12%). Median Expanded Disability Status Scale (EDSS) ranged from 0 to 3, depicting a mildly disabled cohort, with the exception of Saudi Arabia where the median EDSS was 4 (quartiles 1.5-6.5). The median relapse frequency was highest in Lebanon (median 1.03, 95% CI 0.94-1.16) followed by Egypt (median 1.02, 95% CI 0.89-1.24) and lowest in Saudi Arabia (median 0.70, 95% CI 0.58-0.95) and Kuwait (median 0.75, 95% CI 0.71-0.80). The treatment landscape greatly varied between different countries. Platform injectable therapies were mostly utilized in Egypt, Iran and Turkey (86%, 79% and 53%, respectively), while oral therapies and monoclonal antibodies were more commonly used in Kuwait, Lebanon and the United Arab Emirates (87.2%, 67.3% and 58.7%, respectively). CONCLUSION Patients in the Middle East enrolled in a large multinational registry are representative of the general MS population. The spectrum of therapies used in the individual countries, however, is highly variable. Further studies that include rural and non-academic practices are needed to enhance our understanding of the MS cohorts in the Middle East.
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Ehtesham N, Rafie MZ, Mosallaei M. The global prevalence of familial multiple sclerosis: an updated systematic review and meta-analysis. BMC Neurol 2021; 21:246. [PMID: 34182943 PMCID: PMC8237453 DOI: 10.1186/s12883-021-02267-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 06/03/2021] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Considering that many recent studies have reported the prevalence of familial multiple sclerosis (FMS), we performed an updated meta-analysis of the worldwide prevalence of FMS by the addition of recent publications. METHODS A search in PubMed, Scopus, the ISI Web of Science, and Google Scholar was undertaken up to 20 December 2020. The inclusion criteria were based on the CoCoPop approach (condition, context, and population). Meta-analysis of the qualified studies was conducted by comprehensive meta-analysis ver. 2 software. RESULTS The pooled prevalence of MS in relatives of 16,179 FMS cases was estimated to be 11.8% (95% CI: 10.7-13) based on a random-effects model. The pooled mean age of disease onset in adult probands was calculated to be 28.7 years (95% CI: 27.2 ± 30.2). Regarding 13 studies that reported the data of FMS in pediatrics (n = 877) and adults (n = 6636), the FMS prevalence in pediatrics and adults was 15.5% (95% CI: 13.8-17.4) and 10.8% (95% CI: 8.1-14.2), respectively. The prevalence of FMS in affected males (n = 5243) and females (n = 11,503) was calculated to be 13.7% (95% CI: 10.1-18.2) and 15.4% (95% CI: 10.3-22.4), respectively. The odds ratio of male/female in FMS cases was not statistically significant (OR = 0.9; 95% CI: 0.6-1.2, P = 0.55). Subgroup analysis demonstrated a significant difference in the prevalence of FMS between the geographical areas (P = 0.007). The meta-regression model indicated that the prevalence of FMS is lower with higher latitude and higher MS prevalence (P < 0.001). In contrast, meta-regression based on prevalence day was not statistically significant (P = 0.29). CONCLUSIONS The prevalence of FMS is higher in the pediatric group than that of adults, distinct between geographical areas, and diminishes with the increment of MS prevalence and latitude. Also, the symptoms initiate relatively at younger ages in the FMS cases. Interestingly, our analysis unveiled that FMS is not more prevalent in men than women and the risk of MS development in relatives is not higher when the affected proband is male.
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Affiliation(s)
- Naeim Ehtesham
- Student Research Committee, University of Social Welfare and Rehabilitation Sciences, Koodakyar Alley, Daneshjoo Blvd., Evin St, Tehran, Iran.
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Maryam Zare Rafie
- School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Meysam Mosallaei
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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Naser Moghadasi A. Environmental and genetic risk factors in the development of neuromyelitis optica. EXPERT REVIEW OF OPHTHALMOLOGY 2020. [DOI: 10.1080/17469899.2020.1723416] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Abdorreza Naser Moghadasi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
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Mahmudi L, Moslemirad M, Dabestani B, Shohani M, Azami M. Clinical and demographic features in Iranian multiple sclerosis patients: a systematic review and meta-analysis. FUTURE NEUROLOGY 2019. [DOI: 10.2217/fnl-2018-0025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aim: This study was conducted to determine the clinical and demographic features in Iranian multiple sclerosis (MS) patients including clinical courses, positive MS family history, disability and age of disease onset. Materials & methods: All stages of the study were reported according to the PRISMA guidelines. A systematic review of published literature in Persian and English journals with a comprehensive search was conducted on English international databases including Scopus, PubMed/Medline, Cochrane Library, Science Direct, Web of Science, Embase, PsycINFO, as well as the Google Scholar search engine and national databases. Results: The prevalence of clinical courses of relapsing remitting, primary progressive, secondary progressive and relapsing progressive in Iranian patients with MS was 77.1% (95% CI: 72.2–81.3), 6.2% (95% CI: 4.1–9.2), 9.5% (95% CI: 6.8–13.1) and 0.4% (95% CI: 0.2–0.8), respectively. Positive family history of MS in Iranian MS patients was 8.9% (95% CI: 6.9–11.4). The mean age of disease onset was 28.9 years (95% CI: 27.8–30.1). Conclusion: The results of this meta-analysis in an Iranian population can provide useful information for neurologists and healthcare.
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Affiliation(s)
- Leily Mahmudi
- School of Medicine, Dezful University of Medical Sciences, Dezful, Iran
| | - Moslem Moslemirad
- School of Nursing & Midwifery, Yasuj University of Medical Science, Yasuj, Iran
| | - Bafrin Dabestani
- Faculty of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoumeh Shohani
- Department of Nursing, Faculty of Allied Medical Sciences, Ilam University of Medical Sciences, Ilam, Iran
| | - Milad Azami
- School of Medicine, Ilam University of Medical Sciences, Ilam, Iran
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Bennis A, El Otmani H, Benkirane N, Harrizi I, El Moutawakil B, Rafai MA, Slassi I. Clinical course of neuromyelitis optica spectrum disorder in a moroccan cohort. Mult Scler Relat Disord 2019; 30:141-148. [DOI: 10.1016/j.msard.2019.02.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 02/01/2019] [Accepted: 02/05/2019] [Indexed: 12/30/2022]
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12
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Rezaeimanesh N, Razeghi Jahromi S, Ghorbani Z, Beladi Moghadam N, Hekmatdoost A, Naser Moghadasi A, Azimi AR, Sahraian MA. The association between dietary sugar intake and neuromyelitis optica spectrum disorder: A case-control study. Mult Scler Relat Disord 2019; 31:112-117. [PMID: 30978652 DOI: 10.1016/j.msard.2019.03.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 02/04/2019] [Accepted: 03/31/2019] [Indexed: 01/08/2023]
Abstract
BACKGROUND Neuromyelitis optica spectrum disorder (NMOSD) is an uncommon autoimmune disease of the central nerves system (CNS) by inflammatory nature. The effects of high dietary sugar intake on inflammation and dysbiosis have been received more attention in recent years. The aim of the present study was to investigate the association between various types of dietary sugar intake and NMOSD odds and clinical features. METHOD The current case-control study was conducted among 70 patients with definite NMOSD diagnosis based on 2015 international consensus criteria and 164 hospital-based controls. Demographic and anthropometric information in all participants and disease characteristics just in case group were obtained. Dietary data during the past year of study attendance was collected by a validated 168-item food frequency questionnaire. Participants were stratified into 3 tertiles according to each type of sugar intake and the third tertile considered as reference in multivariate regression models. The correlation between dietary sugar and disease features were analyzed using Pearson correlation test. RESULTS The mean ± SD of total sugar intake increased from 80.73 ± 17.71 to 208.71 ± 57.93 g/day across tertiles of total sugar intake. In fully adjusted model, lower intake of sugar was associates with decreased odds of NMOSD in the first tertile vs third tertile by ORs of: 0.02(CI:0.00-0.08; p-for-trend:0.00), 0.02(CI:0.00-0.10; p-for-trend:0.00), 0.23(CI:0.08-0.61; p-for-trend:0.00), 0.19(CI:0.06-0.58; p-for-trend:0.00) and 0.16(CI:0.05-0.51; p-for-trend:0.00) for glucose, fructose, galactose, lactose and sucrose, respectively. The odds of NMOSD had a 1.72-fold (CI: 1.43-2.03; p-for-trend:0.00) significant raise per every 10 g increase for total sugar intake. There was no significant correlation between various types of dietary sugar intakes and relapse rate or patients' disability. CONCLUSION The present study proposes a possible direct association between high intake of various sugar types and odds of suffering from NMOSD. More investigations are needed to prove this results.
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Affiliation(s)
- Nasim Rezaeimanesh
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran; Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soodeh Razeghi Jahromi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran; Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zeinab Ghorbani
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran; School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Nahid Beladi Moghadam
- Department of Neurology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Azita Hekmatdoost
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abdorreza Naser Moghadasi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Reza Azimi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Sahraian
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.
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Zarei S, Eggert J, Franqui-Dominguez L, Carl Y, Boria F, Stukova M, Avila A, Rubi C, Chinea A. Comprehensive review of neuromyelitis optica and clinical characteristics of neuromyelitis optica patients in Puerto Rico. Surg Neurol Int 2018; 9:242. [PMID: 30603227 PMCID: PMC6293609 DOI: 10.4103/sni.sni_224_18] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 08/21/2018] [Indexed: 12/14/2022] Open
Abstract
Neuromyelitis optica (NMO) is an immune-mediated inflammatory disorder of the central nervous system. It is characterized by concurrent inflammation and demyelination of the optic nerve (optic neuritis [ON]) and the spinal cord (myelitis). Multiple studies show variations in prevalence, clinical, and demographic features of NMO among different populations. In addition, ethnicity and race are known as important factors on disease phenotype and clinical outcomes. There are little data on information about NMO patients in underserved groups, including Puerto Rico (PR). In this research, we will provide a comprehensive overview of all aspects of NMO, including epidemiology, environmental risk factors, genetic factors, molecular mechanism, symptoms, comorbidities and clinical differentiation, diagnosis, treatment, its management, and prognosis. We will also evaluate the demographic features and clinical phenotype of NMO patients in PR. This will provide a better understanding of NMO and establish a basis of knowledge that can be used to improve care. Furthermore, this type of population-based study can distinguish the clinical features variation among NMO patients and will provide insight into the potential mechanisms that cause these variations.
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Affiliation(s)
- Sara Zarei
- San Juan Bautista School of Medicine, Caguas, Puerto Rico, USA
| | - James Eggert
- San Juan Bautista School of Medicine, Caguas, Puerto Rico, USA
| | | | - Yonatan Carl
- San Juan Bautista School of Medicine, Caguas, Puerto Rico, USA
| | - Fernando Boria
- San Juan Bautista School of Medicine, Caguas, Puerto Rico, USA
| | - Marina Stukova
- San Juan Bautista School of Medicine, Caguas, Puerto Rico, USA
| | | | - Cristina Rubi
- Caribbean Neurological Center, Guaynabo, Puerto Rico, USA
| | - Angel Chinea
- Caribbean Neurological Center, Guaynabo, Puerto Rico, USA
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Hansapinyo L, Vivattanaseth C. Clinical Characteristics, Treatment Outcomes and Predictive Factors in Optic Neuritis. Open Ophthalmol J 2018; 12:247-255. [PMID: 30258505 PMCID: PMC6131319 DOI: 10.2174/1874364101812010247] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 07/17/2018] [Accepted: 07/24/2018] [Indexed: 01/31/2023] Open
Abstract
Background: The causes, clinical presentations and treatment outcomes of optic neuritis are distinct among different populations. Early diagnosis based on clinical presentations plays an important role in treating optic neuritis patients. Objective:
The study aimed to determine clinical characteristics, treatment outcomes and predictive factors of treatment outcomes in optic neuritis patients with and without demyelinating disease. Methods: A retrospective descriptive study of optic neuritis patients carried out between January 2009 and December 2016 was done. Univariate analysis and multivariate logistic regression analysis were used to evaluate the predictive factors of treatment outcomes. Results: Among 150 patients with optic neuritis, 58 patients were diagnosed with Neuromyelitis Optica Spectrum Disease (NMOSD), 23 patients were diagnosed with Multiple Sclerosis (MS) and 69 patients were idiopathic. The age at presentation in the NMOSD group was significantly younger than the MS group and the idiopathic group. The female:male ratio was significantly lower in the idiopathic group than in the NMOSD group. The initial Best Corrected Visual Activity (BCVA) of 20/20-20/60 (p = 0.001) and the idiopathic group (p =0.030) was associated with good visual outcomes. Initial BCVA of < 20/200 (p = 0.009) and the NMOSD group (p < 0.001) was associated with poor visual outcomes. Conclusion: NMOSD is a more common cause of optic neuritis than MS in Thai population. Female patients with poor initial VA, poor response to steroids treatment, and presenting recurrent attacks are highly suspicious for NMOSD. Optic neuritis without associated demyelinating disease has a better visual outcome and lower recurrence rate.
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Affiliation(s)
- Linda Hansapinyo
- Department of Ophthalmology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Chayanee Vivattanaseth
- Department of Ophthalmology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
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Eskandarieh S, Nedjat S, Abdollahpour I, Azimi AR, Moghadasi AN, Asgari N, Sahraian MA. Environmental risk factors in neuromyelitis optica spectrum disorder: a case-control study. Acta Neurol Belg 2018; 118:277-287. [PMID: 29500680 DOI: 10.1007/s13760-018-0900-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 02/13/2018] [Indexed: 11/26/2022]
Abstract
Neuromyelitis optica spectrum disorder (NMOSD) has unknown risk factors. The aim of this study was to identify the environmental risk factors for NMOSD. A case-control study was conducted in Tehran from 2015 to 2016 among 100 patients with NMOSD. Sex-matched healthy controls (n = 400) were selected through random digit dialing (RDD). Logistic regression was used to estimate unadjusted and adjusted ORs (odds ratio) at 95% confidence intervals (CI) via SPSS. Compared with the control population, in NMOSD patients, the adjusted OR for low dairy consumption per week was (OR = 18.09; 95% CI 6.91, 47.37), following low sea food intake (OR = 13.91; 95% CI 6.13, 31.57) and low fruit and vegetable consumption (OR = 6.23; 95% CI 3.07, 12.62). The lower heavy physical activity (OR: 16.11, 95% CI 7.03, 36.91) among patients had risen the risk of NMOSD. A past history of head trauma was considered a risk for NMOSD (OR: 8.39, 95% CI 4.97, 14.16). The association between NMOSD and intentional abortion only among females (OR: 7.42, 95% CI 2.81, 19.55) was detected. This study indicates significant associations between dietary habits, life style, history of head trauma and intentional abortion in female and the later diagnosis of NMOSD.
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Affiliation(s)
- Sharareh Eskandarieh
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
- MS Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Saharnaz Nedjat
- Department of Epidemiology and Biostatistics, School of Public Health, Knowledge Utilization Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ibrahim Abdollahpour
- Department of Epidemiology and Biostatistics, School of Public Health, Arak University of Medical Sciences, Arak, Iran
| | - Amir Reza Azimi
- MS Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Nasrin Asgari
- Department of Neurology, University of Southern Denmark, Odense, Denmark
| | - Mohammad Ali Sahraian
- MS Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.
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Increasing prevalence of familial recurrence of multiple sclerosis in Iran: a population based study of Tehran registry 1999-2015. BMC Neurol 2018; 18:15. [PMID: 29415659 PMCID: PMC5804012 DOI: 10.1186/s12883-018-1019-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 01/29/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Tehran is the capital of Iran with an increasing multiple sclerosis (MS) prevalence. A retrospective population-based study was conducted to evaluate the trends of MS prevalence in Tehran. METHODS A population-based survey was conducted for the period 1999 to 2015, based on Iranian MS Society (IMSS) registry system of Tehran, the capital city of Iran. Point regression analysis was applied on MS trend data to find annual percent change (APC). The logistic regression analysis was used to estimate the odds ratio (OR) for individual variables in order to assess factors associating with familial recurrence of MS. P values < 0.05 were considered significant. RESULTS MS prevalence has significantly increased during the study period from 1999 to 2015 (56.22 per 100,000). Total point prevalence of MS was 115.94 per 100,000 persons in 2015 compared to general population. Positive family history of MS was observed among 12.4% of patients. The strongest association amongst first-degree relatives was found in siblings, p value ≤ 0.001. CONCLUSION MS prevalence is rising in Tehran and this city is one of the regions with highest MS prevalence in Asia. In this sample, the largest proportion of relatives with MS were found among first-degree relatives, particularly siblings. Familial recurrence correlated with relative type.
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Neuromyelitis optica spectrum disorders in Iran. Mult Scler Relat Disord 2017; 18:209-212. [PMID: 29141812 DOI: 10.1016/j.msard.2017.10.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Revised: 10/02/2017] [Accepted: 10/08/2017] [Indexed: 11/23/2022]
Abstract
BACKGROUND Neuromyelitys optica spectrum disorder (NMOSD) is a rare demyelinating disease; as a result, the epidemiological data on this disorder is scarce. In this regard, the aim of this study was to estimate the prevalence, serology, and clinical features of NMOSD in Caucasian population in Tehran, Iran. METHOD A cross sectional study was performed in Tehran from 2015 to 2016 among patients registered with NMOSD diagnosis, based on consensus criteria published in 2015. The researchers designed a questionnaire to cover the important epidemiological and clinical data of NMOSD in Tehran. Structured face to face interviews were conducted with 103 patients by trained interviewers to collect the data. The logistic regression was applied in analysis via SPSS software package. RESULT The prevalence of NMOSD in Tehran was 0.86 per 100,000 in 2016. Female to male ratio was 5:1 with mean age at the disease onset of 31.54. NMO-IgG were positive in 44 (46.8%) patients, and the primary presenting symptoms of TM were observed in 29 (28.2%) patients. The adjusted odds ratio for sex was estimated for depression (OR = 6.83; 95% CI: 1.47, 31.71), migraine (OR = 1.27; 95% CI: 1.13, 1.42), and hypothyroidism (OR = 1.25; 95% CI: 1.12, 1.39). CONCLUSION The researchers indicated that the rate of NMOSD is significantly higher among females and younger age group. In addition, the history of depression, migraine, and hypothyroidism has been observed more among female patients in comparison to male patients.
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