Serum calprotectin as a marker of clinical and ultrasound-detected synovitis in early psoriatic and rheumatoid arthritis: results from a cross-sectional retrospective study

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Abstract

OBJECTIVES: We aimed to evaluate the correlation between serum calprotectin and clinical and ultrasonographic (US) variables in early-onset psoriatic arthritis (PsA) and controls with rheumatoid arthritis (RA).

METHODS: In a retrospective cross-sectional study, including PsA and matched RA patients, 44 joint counts (TJC, SJC), calprotectin, ESR and CRP were measured. US of wrists and MCPs 1-5 was performed, with grey-scale (GS) and power Doppler (PD) scored 0-3 at each site, summed in a total score. The correlation between calprotectin, clinical and US variables was evaluated by Spearman's coefficient, the predictivity by calprotectin of US by regression. Secondary analyses separating polyarticular PsA and using different US definitions (GS>1, PD>1) were performed.

RESULTS: 78 PsA and 78 RA were included (PsA male 32%; mean age 51.7 (13.5)). Calprotectin did not significantly differ in PsA and RA. In PsA, calprotectin correlated with GS score (ρ=0.340, p=0.008), PD score (ρ=0.292, p=0.023) and the presence of PD (ρ=0.263, p=0.042); in RA there were no significant correlations. In polyarticular PsA, a significant correlation between calprotectin and GS (ρ=0.369, p=0.019) and PD scores (ρ=0.363, p=0.021) was confirmed. In both PsA and RA, calprotectin and CRP significantly correlated, while SJC and TJC did not. In the regression analysis, calprotectin did not predict US variables in PsA. Similar results were achieved in RA.

CONCLUSIONS: In early PsA, serum calprotectin correlates with US measures of disease activity. Our results provide preliminary evidence for the application of this biomarker in early PsA.

Original languageEnglish
Pages (from-to)429-436
Number of pages8
JournalClinical and Experimental Rheumatology
Volume37
Issue number3
Early online dateOct 8 2018
Publication statusPublished - 2019

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Leukocyte L1 Antigen Complex
Psoriatic Arthritis
Synovitis
Rheumatoid Arthritis
Retrospective Studies
Cross-Sectional Studies
Biomarkers
Serum
Wrist

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@article{9378347e30b047f8a409b92ee9fc71c9,
title = "Serum calprotectin as a marker of clinical and ultrasound-detected synovitis in early psoriatic and rheumatoid arthritis: results from a cross-sectional retrospective study",
abstract = "OBJECTIVES: We aimed to evaluate the correlation between serum calprotectin and clinical and ultrasonographic (US) variables in early-onset psoriatic arthritis (PsA) and controls with rheumatoid arthritis (RA).METHODS: In a retrospective cross-sectional study, including PsA and matched RA patients, 44 joint counts (TJC, SJC), calprotectin, ESR and CRP were measured. US of wrists and MCPs 1-5 was performed, with grey-scale (GS) and power Doppler (PD) scored 0-3 at each site, summed in a total score. The correlation between calprotectin, clinical and US variables was evaluated by Spearman's coefficient, the predictivity by calprotectin of US by regression. Secondary analyses separating polyarticular PsA and using different US definitions (GS>1, PD>1) were performed.RESULTS: 78 PsA and 78 RA were included (PsA male 32{\%}; mean age 51.7 (13.5)). Calprotectin did not significantly differ in PsA and RA. In PsA, calprotectin correlated with GS score (ρ=0.340, p=0.008), PD score (ρ=0.292, p=0.023) and the presence of PD (ρ=0.263, p=0.042); in RA there were no significant correlations. In polyarticular PsA, a significant correlation between calprotectin and GS (ρ=0.369, p=0.019) and PD scores (ρ=0.363, p=0.021) was confirmed. In both PsA and RA, calprotectin and CRP significantly correlated, while SJC and TJC did not. In the regression analysis, calprotectin did not predict US variables in PsA. Similar results were achieved in RA.CONCLUSIONS: In early PsA, serum calprotectin correlates with US measures of disease activity. Our results provide preliminary evidence for the application of this biomarker in early PsA.",
author = "Garifallia Sakellariou and Giovanni Lombardi and Barbara Vitolo and Marta Gomarasca and Martina Faraldi and Roberto Caporali and Giuseppe Banfi and Carlomaurizio Montecucco",
year = "2019",
language = "English",
volume = "37",
pages = "429--436",
journal = "Clinical and Experimental Rheumatology",
issn = "0392-856X",
publisher = "Clinical and Experimental Rheumatology S.A.S.",
number = "3",

}

TY - JOUR

T1 - Serum calprotectin as a marker of clinical and ultrasound-detected synovitis in early psoriatic and rheumatoid arthritis

T2 - results from a cross-sectional retrospective study

AU - Sakellariou, Garifallia

AU - Lombardi, Giovanni

AU - Vitolo, Barbara

AU - Gomarasca, Marta

AU - Faraldi, Martina

AU - Caporali, Roberto

AU - Banfi, Giuseppe

AU - Montecucco, Carlomaurizio

PY - 2019

Y1 - 2019

N2 - OBJECTIVES: We aimed to evaluate the correlation between serum calprotectin and clinical and ultrasonographic (US) variables in early-onset psoriatic arthritis (PsA) and controls with rheumatoid arthritis (RA).METHODS: In a retrospective cross-sectional study, including PsA and matched RA patients, 44 joint counts (TJC, SJC), calprotectin, ESR and CRP were measured. US of wrists and MCPs 1-5 was performed, with grey-scale (GS) and power Doppler (PD) scored 0-3 at each site, summed in a total score. The correlation between calprotectin, clinical and US variables was evaluated by Spearman's coefficient, the predictivity by calprotectin of US by regression. Secondary analyses separating polyarticular PsA and using different US definitions (GS>1, PD>1) were performed.RESULTS: 78 PsA and 78 RA were included (PsA male 32%; mean age 51.7 (13.5)). Calprotectin did not significantly differ in PsA and RA. In PsA, calprotectin correlated with GS score (ρ=0.340, p=0.008), PD score (ρ=0.292, p=0.023) and the presence of PD (ρ=0.263, p=0.042); in RA there were no significant correlations. In polyarticular PsA, a significant correlation between calprotectin and GS (ρ=0.369, p=0.019) and PD scores (ρ=0.363, p=0.021) was confirmed. In both PsA and RA, calprotectin and CRP significantly correlated, while SJC and TJC did not. In the regression analysis, calprotectin did not predict US variables in PsA. Similar results were achieved in RA.CONCLUSIONS: In early PsA, serum calprotectin correlates with US measures of disease activity. Our results provide preliminary evidence for the application of this biomarker in early PsA.

AB - OBJECTIVES: We aimed to evaluate the correlation between serum calprotectin and clinical and ultrasonographic (US) variables in early-onset psoriatic arthritis (PsA) and controls with rheumatoid arthritis (RA).METHODS: In a retrospective cross-sectional study, including PsA and matched RA patients, 44 joint counts (TJC, SJC), calprotectin, ESR and CRP were measured. US of wrists and MCPs 1-5 was performed, with grey-scale (GS) and power Doppler (PD) scored 0-3 at each site, summed in a total score. The correlation between calprotectin, clinical and US variables was evaluated by Spearman's coefficient, the predictivity by calprotectin of US by regression. Secondary analyses separating polyarticular PsA and using different US definitions (GS>1, PD>1) were performed.RESULTS: 78 PsA and 78 RA were included (PsA male 32%; mean age 51.7 (13.5)). Calprotectin did not significantly differ in PsA and RA. In PsA, calprotectin correlated with GS score (ρ=0.340, p=0.008), PD score (ρ=0.292, p=0.023) and the presence of PD (ρ=0.263, p=0.042); in RA there were no significant correlations. In polyarticular PsA, a significant correlation between calprotectin and GS (ρ=0.369, p=0.019) and PD scores (ρ=0.363, p=0.021) was confirmed. In both PsA and RA, calprotectin and CRP significantly correlated, while SJC and TJC did not. In the regression analysis, calprotectin did not predict US variables in PsA. Similar results were achieved in RA.CONCLUSIONS: In early PsA, serum calprotectin correlates with US measures of disease activity. Our results provide preliminary evidence for the application of this biomarker in early PsA.

M3 - Article

C2 - 30299248

VL - 37

SP - 429

EP - 436

JO - Clinical and Experimental Rheumatology

JF - Clinical and Experimental Rheumatology

SN - 0392-856X

IS - 3

ER -