期刊
SCANDINAVIAN JOURNAL OF IMMUNOLOGY
卷 69, 期 5, 页码 457-464出版社
WILEY
DOI: 10.1111/j.1365-3083.2009.02234.x
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资金
- National Natural Science Foundation of China [30570852]
- Ministry of Health, People's Republic of China [2004230003]
- '985' project from Peking University and National Key Technology R D Programme [2007BAI04B10]
- People's Republic of China
Factor H plays a key inhibitory role in control of the activation of alternative pathway of complement system. The aim of the study was to investigate the predictive value of factor H as a biomarker of renal injury in IgA nephropathy (IgAN). Urine factor H concentration from 202 patients was measured and compared with that of 60 healthy volunteers. Forty-eight patients fulfilled Haas-I or II (group 1), 60 fulfilled Haas-III (group 2) and 94 fulfilled Haas-IV or V (group 3). Co-deposition of factor H and C3b in kidneys were investigated using confocal microscope. The levels of urinary factor H, when expressed as a ratio of urinary creatinine, were significantly higher in groups 3 than group 1 and 2, also significantly higher in group 2 than group 1. In addition, the levels of urinary factor H were significantly higher in those with factor H deposition in the kidney than those without deposition. The levels of urinary factor H may be a useful biomarker to evaluate kidney injury in IgAN.
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