{"title":"Lack of Association between Seropositivity of Vasculopathy-Related Viruses and Moyamoya Disease.","authors":"Yasuhisa Nakamura, Yohei Mineharu, Takahiko Kamata, Takeshi Funaki, Susumu Miyamoto, Akio Koizumi, Kouji H Harada","doi":"10.1016/j.jstrokecerebrovasdis.2022.106509","DOIUrl":null,"url":null,"abstract":"<p><strong>Objectives: </strong>Although the association between genetic factors, such as RNF213 mutations, and moyamoya disease (MMD) has been well investigated, environmental factors are largely undetermined. Thus, we aimed to examine whether viral infection increases the risk of MMD.</p><p><strong>Materials and methods: </strong>To eliminate the effect of presence or absence of the RNF213 p.R4810K mutation, the entire study population was positive for this mutation. We collected whole blood from 111 patients with MMD (45 familial and 66 sporadic cases) and 67 healthy volunteers, and we measured the immunoglobulin G titer of 11 viruses (cytomegalovirus, varicella-zoster virus, measles virus, rubella virus, herpes simplex virus, mumps virus, Epstein-Barr virus, human parvovirus B19, human herpesvirus 6 [HHV6], human herpesvirus 8, and John Cunningham virus) that were presumed to be associated with vasculopathy using the enzyme-linked immunosorbent assay. Positivity for past viral infection was determined by cut-off values obtained from previous reports and the manufacturer's instructions, and the positive rate was compared between cases and age- and sex-matched controls. We performed familial case-specific and sporadic case-specific analyses, as well as a case-control analysis.</p><p><strong>Results: </strong>There was no significant difference in the positive rate between the case group and the control group in any of the analyses. A significant difference was only observed in the combined case-control analysis for HHV6 (p = 0.046), but the viral antibody-positive rate in control individuals was higher than in MMD cases.</p><p><strong>Conclusions: </strong>Our cross-sectional study suggest that the investigated 11 viruses including HHV6 are unlikely to have an impact on MMD development.</p>","PeriodicalId":55881,"journal":{"name":"Journal of Business Strategy","volume":"5 1","pages":"106509"},"PeriodicalIF":0.0000,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Business Strategy","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1016/j.jstrokecerebrovasdis.2022.106509","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2022/4/29 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"Business, Management and Accounting","Score":null,"Total":0}
引用次数: 0
Abstract
Objectives: Although the association between genetic factors, such as RNF213 mutations, and moyamoya disease (MMD) has been well investigated, environmental factors are largely undetermined. Thus, we aimed to examine whether viral infection increases the risk of MMD.
Materials and methods: To eliminate the effect of presence or absence of the RNF213 p.R4810K mutation, the entire study population was positive for this mutation. We collected whole blood from 111 patients with MMD (45 familial and 66 sporadic cases) and 67 healthy volunteers, and we measured the immunoglobulin G titer of 11 viruses (cytomegalovirus, varicella-zoster virus, measles virus, rubella virus, herpes simplex virus, mumps virus, Epstein-Barr virus, human parvovirus B19, human herpesvirus 6 [HHV6], human herpesvirus 8, and John Cunningham virus) that were presumed to be associated with vasculopathy using the enzyme-linked immunosorbent assay. Positivity for past viral infection was determined by cut-off values obtained from previous reports and the manufacturer's instructions, and the positive rate was compared between cases and age- and sex-matched controls. We performed familial case-specific and sporadic case-specific analyses, as well as a case-control analysis.
Results: There was no significant difference in the positive rate between the case group and the control group in any of the analyses. A significant difference was only observed in the combined case-control analysis for HHV6 (p = 0.046), but the viral antibody-positive rate in control individuals was higher than in MMD cases.
Conclusions: Our cross-sectional study suggest that the investigated 11 viruses including HHV6 are unlikely to have an impact on MMD development.
期刊介绍:
The Journal of Business Strategy publishes articles with a practical focus designed to help readers develop successful business strategies. Articles should say something new or different and may propose a unique perspective. They should not offer prescriptions to CEOs on how to manage, but rather be directed toward middle and senior managers at companies of all sizes and types, as well as consultants and academics who want to think about their businesses in new ways. Coverage: As one of the few journals dedicated to business strategy, JBS defines strategy in the broadest sense and thus covers topics as diverse as marketing strategy, innovation, developments in the global economy, mergers & acquisition integration and human resources. We have a penchant for substantive, provocative and well-written articles. We also like to break the mould and include articles on topics readers are unlikely to find in other business publications.