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Anti-neutrophil cyt...
Anti-neutrophil cytoplasmic antibodies predate symptom onset of ANCA-associated vasculitis : a case-control study
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- Berglin, Ewa, MD, PhD, 1955- (författare)
- Umeå University,Umeå universitet,Reumatologi,Umea Univ, Sweden
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- Mohammad, Aladdin J. (författare)
- Lund University,Lunds universitet,Reumatologi och molekylär skelettbiologi,Sektion III,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Rheumatology,Section III,Department of Clinical Sciences, Lund,Faculty of Medicine,University of Cambridge,Lund Univ, Sweden; Univ Cambridge, England
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- Dahlqvist, Johanna, 1979- (författare)
- Uppsala University,Uppsala universitet,Reumatologi,Institutionen för medicinsk biokemi och mikrobiologi,Uppsala Univ, Sweden
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- Johansson, Linda (författare)
- Umeå University,Umeå universitet,Reumatologi,Umea Univ, Sweden
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- Eriksson, Catharina, 1955- (författare)
- Umeå University,Umeå universitet,Klinisk immunologi,Umea Univ, Sweden
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- Sjöwall, Johanna (författare)
- Linköpings universitet,Linköping University,Linköping University Hospital,Avdelningen för inflammation och infektion,Medicinska fakulteten,Region Östergötland, Infektionskliniken i Östergötland
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- Rantapää-Dahlqvist, Solbritt (författare)
- Umeå University,Umeå universitet,Reumatologi,Umea Univ, Sweden
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(creator_code:org_t)
- Elsevier, 2021
- 2021
- Engelska.
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Ingår i: Journal of Autoimmunity. - : Elsevier. - 0896-8411 .- 1095-9157. ; 117
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Abstract
Ämnesord
Stäng
- Objectives: Anti-neutrophil cytoplasmic autoantibodies [ANCA) are important for diagnosis of ANCA-associated vasculitides (AAV). The timing of antibody development is not well established. To investigate the development of proteinase 3 (PR3)- and myeloperoxidase (MPO)-ANCA, blood samples collected before onset of symptoms of AAV were analysed.Methods: To identify AAV patients with blood samples predating symptoms, the National Patient Register and Cause of Death register were scrutinized for ICD codes for AAV and linked to the registers of five biobanks. Diagnoses of AAV and time point for symptom onset were confirmed by reviewing 504 case-record. Eighty-five AAV cases (34 males, 51 females) with samples >1 month < 10 years from AAV symptom onset and two controls matched for sex, age, and sampling time for each case were included. Samples were screened using ELISAs for ANCA and further analysed for PR3-or MPO- specificities.Results: In ANCA-screen 35.7% of the pre-symptomatic cases and 3.5% of controls tested positive (p < 0.01). 26.2% of the cases were PR3-ANCA+ and 10.7% MPO-ANCA+. Median (Q1-Q3) predating time for PR3-ANCA+ was 2.7 (0.3–7.7) years and MPO-ANCA+ 2.0 (0.9–3.5) years. PR3-ANCA was demonstrated in samples up to nine years before symptom onset. At symptom onset predating PR3-ANCA+ cases were younger than PR3-ANCA- (P < 0.01), and MPO-ANCA+ were older than MPO-ANCA- (p < 0.05). Predating MPO-ANCA+ cases vs. MPO-ANCA- and vs. PR3-ANCA+ cases had more often at symptoms onset manifestations from lungs, kidneys or peripheral nervous system (p < 0.01 and p < 0.05, respectively).Conclusion: The PR3-and MPO-ANCAs are present years before AAV symptom onset and represent distinct diseases.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Reumatologi och inflammation (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Rheumatology and Autoimmunity (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Urologi och njurmedicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Urology and Nephrology (hsv//eng)
Nyckelord
- AAV
- GPA
- MPA
- MPO-ANCA
- PR3-ANCA
- Predate symptom onset
- AAV
- GPA
- MPA
- MPO-ANCA
- PR3-ANCA
- Predate symptom onset
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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