PMID- 17215440 OWN - NLM STAT- MEDLINE DCOM- 20070410 LR - 20220419 IS - 1046-6673 (Print) IS - 1046-6673 (Linking) VI - 18 IP - 2 DP - 2007 Feb TI - Antineutrophil cytoplasmic autoantibody-negative Pauci-immune crescentic glomerulonephritis. PG - 599-605 AB - Pauci-immune crescentic glomerulonephritis (CrGN) is one of the most common causes of rapidly progressive glomerulonephritis. The majority of patients with pauci-immune CrGN had circulating antineutrophil cytoplasmic autoantibody (ANCA). However, patients with ANCA-negative pauci-immune CrGN were not investigated fully. This study aimed to analyze the characteristics of this subgroup of patients. Patients whose pauci-immune CrGN was diagnosed from 1997 to 2006 in one center were studied retrospectively. The criteria of pauci-immune was defined as "the intensity of glomerular immunoglobulins staining by direct immunofluorescence assay in renal sections was negative to 1+ staining on a scale of 0 to 4+." Clinical and pathologic characteristics were compared between patients with and without ANCA. Among the 85 patients with pauci-immune CrGN, 28 (32.9%) were ANCA negative. Compared with the 57 ANCA-positive patients, the ANCA-negative patients were much younger (39.7 +/- 17.0 versus 57.6 +/- 14.0 yr; P < 0.001). The level of urinary protein and the prevalence of nephrotic syndrome were significantly higher in ANCA-negative patients than that in ANCA-positive patients (P < 0.01 and P < 0.001, respectively). However, the prevalence of extrarenal involvement was significantly lower in ANCA-negative patients than that in ANCA-positive patients. The renal survival was poorer in ANCA-negative patients than that in ANCA-positive ones (P < 0.05). ANCA-negative pauci-immune CrGN was not rare and might represent an independent disease entity from ANCA-positive vasculitis. FAU - Chen, Min AU - Chen M AD - Renal Division and Institute of Nephrology, Peking University First Hospital, Beijing 100034, P.R. China. mhzhao@bjmu.edu.cn FAU - Yu, Feng AU - Yu F FAU - Wang, Su-Xia AU - Wang SX FAU - Zou, Wan-Zhong AU - Zou WZ FAU - Zhao, Ming-Hui AU - Zhao MH FAU - Wang, Hai-Yan AU - Wang HY LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20070110 PL - United States TA - J Am Soc Nephrol JT - Journal of the American Society of Nephrology : JASN JID - 9013836 RN - 0 (Antibodies, Antineutrophil Cytoplasmic) SB - IM MH - Adult MH - Age of Onset MH - Aged MH - Antibodies, Antineutrophil Cytoplasmic/*immunology MH - Antibody Specificity MH - Enzyme-Linked Immunosorbent Assay MH - Female MH - Glomerulonephritis/*immunology/*pathology/urine MH - Humans MH - Kidney/*pathology MH - Male MH - Middle Aged MH - Proteinuria EDAT- 2007/01/12 09:00 MHDA- 2007/04/11 09:00 CRDT- 2007/01/12 09:00 PHST- 2007/01/12 09:00 [pubmed] PHST- 2007/04/11 09:00 [medline] PHST- 2007/01/12 09:00 [entrez] AID - ASN.2006091021 [pii] AID - 10.1681/ASN.2006091021 [doi] PST - ppublish SO - J Am Soc Nephrol. 2007 Feb;18(2):599-605. doi: 10.1681/ASN.2006091021. Epub 2007 Jan 10.