The role of MBL, PCT, CRP, neutrophil–lymphocyte ratio, and platelet lymphocyte ratio in differentiating infections from flares in lupus

医学 内科学 甘露聚糖结合凝集素 降钙素原 免疫学 C反应蛋白 胃肠病学 中性粒细胞与淋巴细胞比率 血小板增多症 淋巴细胞 曲线下面积 队列 败血症 血小板 炎症 凝集素
作者
Balaji Musunuri,Rina Tripathy,Sunali Padhi,Aditya K. Panda,Bidyut Kumar Das
出处
期刊:Clinical Rheumatology [Springer Science+Business Media]
卷期号:41 (11): 3337-3344 被引量:5
标识
DOI:10.1007/s10067-022-06285-x
摘要

The distinction between infection and flare in systemic lupus erythematosus (SLE) has always been a dilemma for clinicians as the clinical and biochemical profiles overlap. The present study evaluated affordable biomarkers to distinguish infection from flare in an SLE cohort in a tertiary care center in eastern India.One hundred and fifty-two SLE patients were clinically evaluated and enrolled in the present study. Hematological, immunological, and biochemical profiles and various biomarkers such as C reactive protein (CRP), procalcitonin (PCT), and Mannose-binding lectin (MBL) were quantified.One hundred and fifty-two patients (152) were enrolled in the present study and all had SLEDAI scores of more than 4. From which 70 had infection, and the common infections were urinary tract infection (34.28%) followed by pneumonia (27.14%). Neutrophil-lymphocyte ratio (NLR) and C-reactive protein (CRP) were significantly elevated in SLE with infections (NLR: 5.84 ± 2.47; CRP: 30.56 ± 41.63) than those with flare (NLR: 3.87 ± 2.62; CRP: 8.73 ± 9.53). The receiver operating characteristic curve (ROC) analysis revealed CRP, PLR, and NLR as important markers for predicting infections (CRP: AUC = 0.682, p = 0.0001; PLR: AUC = 0.668, p = 0.0008; NLR: AUC = 0.742, p < 0.0001). The MBL and PCT levels were comparable among SLE flare and those with infections.NLR and CRP levels are affordable biomarkers to distinguish infections from flares in SLE. MBL and PCT could not differentiate flare from an infection. Key Points • Biomarkers for the differentiation of infection and flare in SLE are limited. • NLR, PLR, and CRP are promising biomarkers to enable differentiation. • PCT and MBL are not ideal biomarkers to differentiate infection from flare.
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