Autoimmune Response in Children with Multisystem Inflammatory Syndrome in Children (MIS-C): Clinical Significance of ANA Positivity.
Objective: This study aimed to investigate autoimmune responses in children diagnosed with multisystem inflammatory syndrome (MIS-C) after severe acute respiratory syndrome coronavirus 2 infection and evaluated the clinical significance of antinuclear antibody (ANA) positivity. Material and Methods:...
| Publicado en: | Journal of Pediatric Infection / Çocuk Enfeksiyon Dergisi Vol. 20; no. 1; pp. 49 - 65 |
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| Autores principales: | , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Journal of Pediatric Infection / Cocuk Enfeksiyon Dergisi
mar2026
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=192469956&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 192469956 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 13071068 87WO jtl: Journal of Pediatric Infection / Çocuk Enfeksiyon Dergisi issn: 13071068 maglogo: N pubinfo: dt: mar2026 vid: 20 iid: 1 pid: 50187 pub: Journal of Pediatric Infection / Cocuk Enfeksiyon Dergisi artinfo: ui: 192469956 192469956 192469956 10.5578/ced.20260107 192469956 ppf: 49 ppct: 16 formats: fmt: @attributes: type: P tig: atl: Autoimmune Response in Children with Multisystem Inflammatory Syndrome in Children (MIS-C): Clinical Significance of ANA Positivity. aug: au: Ekemen Keleş, Yıldız Yılmaz, Dilek Karadağ Öncel, Eda Kara Aksay, Ahu Kasap Demir, Belde affil: Clinic of Paediatric Infectious Diseases, Bakırçay University Çiğli Training and Research Hospital, İzmir, Türkiye. sug: subj: Multisystem Inflammatory Syndrome Immunology Autoantibodies Blood Autoimmune Diseases Immunology COVID-19 Immunology Human Male Female Child, Preschool Child Retrospective Design Record Review Thyroid Gland Immunology Inflammation Immunologic Tests Hematologic Tests C-Reactive Protein Blood Fibrin Fibrinogen Degradation Products Blood Blood Sedimentation Ferritin Blood Child, Hospitalized Globulins Blood Oxidoreductases Immunology Outpatients Anthropometry Physical Examination Diagnosis, Laboratory Fibrinogen Blood Blood Coagulation Tests Coombs' Test DNA Blood Glycoproteins Blood Fluoroimmunoassay Chi Square Test Fisher's Exact Test Adrenal Cortex Hormones Therapeutic Use Immunologic Factors Therapeutic Use Descriptive Statistics Data Analysis Software Child, Preschool: 2-5 years Child: 6-12 years Male Female ab: Objective: This study aimed to investigate autoimmune responses in children diagnosed with multisystem inflammatory syndrome (MIS-C) after severe acute respiratory syndrome coronavirus 2 infection and evaluated the clinical significance of antinuclear antibody (ANA) positivity. Material and Methods: This retrospective study included 50 pediatric patients, aged 1 month to 18 years, who had regular follow-up visits after hospitalization for MIS-C between 2020 and 2021. Laboratory results at the sixth-month follow-up, including ANA and other autoantibody tests, as well as clinical characteristics, were evaluated. Results: Of the 50 patients, 62% were male, and the median age was 7.9 years (interquartile range: 4.5-11.9). Eighteen percent of the patients had a history of chronic disease. ANA positivity was detected in five cases (10%), and all ANA-positive patients exhibited involvement of four or more organ systems during MIS-C (p= 0.020). Among thyroid autoantibodies, antithyroglobulin antibody (anti-Tg) positivity was identified in 3 (6.8%) patients, while anti-thyroid peroxidase antibody (anti-TPO) positivity was observed in 2 (5.6%) patients. ANA positivity was present in both patients with anti-TPO positivity, showing a statistically significant (p= 0.010) result, whereas ANA positivity was detected in one of the three patients with anti-Tg positivity (p= 0.254). Conclusion: ANA positivity was present in 10% of MIS-C patients and may be associated with multiorgan involvement. These findings suggest a possible role of an autoimmune mechanism in MIS-C. Larger prospective studies are needed to clarify the prognostic significance of ANA positivity in disease severity. Giriş: Bu çalışmada, şiddetli akut solunum sendromu koronavirüs tip 2 enfeksiyonu sonrasında çocuklarda gelişen multisistem enflamatuvar sendrom (MIS-C) hastalarında otoimmün yanıtlar incelendi ve antinükleer antikor (ANA) pozitifliğinin klinik önemi değerlendirildi. Gereç ve Yöntemler: Bu retrospektif çalışmaya, 2020-2021 yılları arasında MIS-C tanısı ile hastane yatışı sonrası düzenli kontrole gelen 1 ay-18 yaş aralığındaki 50 çocuk hasta dahil edildi. Olguların MIS-C sonrası altıncı ay kontrollerinde laboratuvar verileri, ANA ve diğer otoantikor testleri ile klinik özellikleri değerlendirildi. Bulgular: Çalışmaya katılan 50 hastanın %62’si erkek olup, ortanca yaş 7.9 yıl (çeyreklikler arası aralık: 4.5-11.9 yıl) idi. Hastaların %18’inde kronik hastalık öyküsü mevcuttu. Beş olguda (%10) ANA pozitifliği saptandı; ANA pozitif tüm olgular MIS-C hastalığını dört veya daha fazla organ sistem tutulumu ile geçirdi (p= 0.020). Tiroid otoantikorlarından antitiroglobulin antikor (anti-Tg) pozitifliği üç olguda (%6.8) görülürken antitiroperoksidaz antikor (anti-TPO) pozitifliği iki olguda (%5.6) saptandı. Anti-TPO pozitifliği olan iki olgunun tamamında ANA pozitifliği saptanmış olup bu birliktelik istatistiksel olarak anlamlı bulundu (p= 0.010); anti-Tg pozitifliği olan üç olgunun yalnızca birinde ANA pozitifliği görüldü (p= 0.254). Sonuç: Çalışmamız, MIS-C hastalarının %10’unda ANA pozitifliği olduğunu ve bunun çoklu organ tutulumu ile ilişkili olabileceğini düşündürdüğünü göstermektedir. Bu bulgular, MIS-C’de otoimmün yanıtın rolüne işaret etmekte olup ANA pozitifliğinin hastalık şiddeti üzerindeki prognostik değerinin anlaşılabilmesi için daha geniş prospektif çalışmalara ihtiyaç vardır. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: Multiple languages refInfo: holdings: @attributes: islocal: N |
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