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Sökning: WFRF:(Gullstrand Birgitta) > Plasma C4d as marke...

Plasma C4d as marker for lupus nephritis in systemic lupus erythematosus

Martin, Myriam (författare)
Lund University,Lunds universitet,Proteinkemi, Malmö,Forskargrupper vid Lunds universitet,Protein Chemistry, Malmö,Lund University Research Groups
Smolag, Karolina I. (författare)
Lund University,Lunds universitet,Proteinkemi, Malmö,Forskargrupper vid Lunds universitet,Protein Chemistry, Malmö,Lund University Research Groups
Björk, Albin (författare)
Lund University
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Gullstrand, Birgitta (författare)
Lund University,Lunds universitet,Reumatologi och molekylär skelettbiologi,Sektion III,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Lund SLE Research Group,Forskargrupper vid Lunds universitet,Barnreumatologiskt forskningscentrum,Rheumatology,Section III,Department of Clinical Sciences, Lund,Faculty of Medicine,Lund University Research Groups,Center of Pediatric Rheumatology
Okrój, Marcin (författare)
Medical University of Gdansk
Leffler, Jonatan (författare)
University of Western Australia, Crawley
Jönsen, Andreas (författare)
Lund University,Lunds universitet,Reumatologi och molekylär skelettbiologi,Sektion III,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Lund SLE Research Group,Forskargrupper vid Lunds universitet,Rheumatology,Section III,Department of Clinical Sciences, Lund,Faculty of Medicine,Lund University Research Groups
Bengtsson, Anders A. (författare)
Lund University,Lunds universitet,Reumatologi och molekylär skelettbiologi,Sektion III,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Lund SLE Research Group,Forskargrupper vid Lunds universitet,Rheumatology,Section III,Department of Clinical Sciences, Lund,Faculty of Medicine,Lund University Research Groups
Blom, Anna M. (författare)
Lund University,Lunds universitet,Proteinkemi, Malmö,Forskargrupper vid Lunds universitet,Protein Chemistry, Malmö,Lund University Research Groups
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 (creator_code:org_t)
2017-12-06
2017
Engelska.
Ingår i: Arthritis Research and Therapy. - : Springer Science and Business Media LLC. - 1478-6354 .- 1478-6362. ; 19:1
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • Background: In the present study, we sought to evaluate the complement activation product C4d as a marker for lupus nephritis in systemic lupus erythematosus (SLE). Methods: C4d levels were determined by enzyme-linked immunosorbent assay in plasma samples of patients with established SLE using a novel approach based on detection of a short linear cleavage neoepitope. Cross-sectional associations were studied in 98 patients with SLE with samples taken at lower or higher respective disease activity. Temporal associations were investigated in 69 patients with SLE who were followed longitudinally for up to 5 years. Plasma samples from 77 healthy donors were included as controls. Results: C4d levels were negligible in healthy control subjects and significantly increased in patients with SLE in the cross-sectional study (p < 0.0001). C4d levels discriminated between higher and lower disease activity according to ROC curve analysis (p < 0.001), exhibiting a positive predictive value of 68%. At higher disease activity, C4d levels correlated with the modified Systemic Lupus Erythematosus Disease Activity Index (p = 0.011) and predominantly with lupus nephritis (p = 0.003), exhibiting a sensitivity of 79% to identify patients with nephritis. High C4d levels together with the presence of anti-dsDNA autoantibodies preceded and thus predicted future lupus nephritis in the longitudinal study (OR 5.4, 95% CI 1.4-21.3). When we considered only patients with renal involvement (19 of 69) during the longitudinal study, we found that high C4d levels alone could forecast recurrence of future lupus nephritis (OR 3.3, 95% CI 1.2-9.6). Conclusions: C4d appears to be a valuable marker for use in monitoring of patients with SLE, particularly for lupus nephritis. Importantly, C4d levels can predict impending flares of lupus nephritis and may thus be useful for informing treatment.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Neurologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Neurology (hsv//eng)

Nyckelord

C4d
Complement
Flare
Lupus nephritis
Systemic lupus erythematosus

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