Urinary Neutrophil Gelatinase-Associated Lipocalin Is a Potential Biomarker for Renal Damage in Patients with Systemic Lupus Erythematosus

Table 2

24-hour urinary excretion of NGAL, IL-10, TGF-β1, and TNF-α in the study groups.^a

	SLE patients			Controls
	Active nephritis	Renal	Non-renal	DC	NC
Number	24	34	8	14	12
NGAL (mg/day)	50.41 (199.93)	49.05 (114.45)	21.78 (12.42)	13.94 (12.53)	7.65 (7.64)
IL-10 (ng/day)	2.34 (16.81)	3.45 (21.06)	10.03 (18.27)	13.12 (15.99)	5.40 (24.09)
TGF-β1 (ng/day)	41.54 (75.59)	23.82 (69.08)	16.17 (16.13)	15.57 (14.94)	7.83 (6.39)
TNF-α (ng/day)	6.01 (15.23)	5.85 (17.63)	20.49 (24.26)	26.68 (39.04)	0 (13.65)

^aData are shown as median (IQR).
NGAL: neutrophil gelatinase-associated lipocalin; IL-10: interleukin-10; TGF-β1: transforming growth factor-β1; TNF-α: tumor necrosis factor-α; SLE: systemic lupus erythematosus; DC: disease control; NC: normal control; IQR: interquartile range.