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- W3095086994 abstract "IgA nephropathy (IgAN) is the most prevalent primary glomerular disease worldwide and is responsible for 45–50% of primary glomerular diseases in China. We are essentially dependent on the degree of proteinuria to determine prognosis and it has been reported that histopathologic lesions are risk factors for the progression of IgAN. The aim of this study was to investigate the clinicopathologic features and prognosis of IgAN with C1q deposition in adult Chinese patients. The patients of primary IgAN diagnosed by renal biopsy from January 2002 to December 2018 at the Second Hospital of Shanxi Medical University were retrospectively analyzed and divided into C1q deposit group and C1q negative group according to glomerular immunofluorescence examination. We evaluated their serologic and histopathologic findings. We collected data of patients during January 1, 2015 to December 31, 2018 and performed the clinical follow-up until the patient's estimated glomerular filtration rate (eGFR) decreased by more than 30%, entering end-stage renal disease (ESRD). Kaplan-Meier survival analysis was used to evaluate the cumulative incidence of renal progression in two groups. Univariate and multivariate Cox proportional hazard regression models were used to analyze the effect of C1q deposition on the prognosis of patients with IgA nephropathy. The baseline data of total 491 cases were available and 172 cases had the follow-up data. The baseline eGFR and plasma albumin (ALB) levels in C1q deposit group were lower than those in the C1q negative group, while the levels of serum creatinine (Scr), total cholesterol (TC), 24 h urine protein, low-density lipoprotein (LDL), β2 microglobulin, etc. were higher than those in C1q negative group (all P < 0.05). Pathological indexes: glomerular segment sclerosis and adhesion (S), renal tubular atrophy/interstitial fibrosis (T), and cell/fibroblastic crescent (C) scores in C1q deposit group were higher than those in C1q negative group (all P < 0.05). With a median follow-up time of 32.5 (24,42) months, a total of 18 patients (C1q deposit: 11; C1q negative: 7) developed to endpoints. Kaplan-Meier survival curve analysis showed that there was significant decrease in cumulative incidence of renal progression between the two groups (Log-rank test χ2 = 4.78, P = 0.029). Cox regression analysis showed that the risk of renal end-point events in IgAN patients with C1q deposit group was 6.35 times higher than that in C1q negative group (HR = 6.35, 95% CI: 1.21–33.30, P = 0.029). The clinical and renal pathological changes of IgAN patients with C1q deposition are more severe than those of C1q negative patients, and has a worse outcome. C1q deposition is an independent risk factor for the progression of renal function and contributes to a poor renal prognosis in adult IgAN patients." @default.
- W3095086994 created "2020-11-09" @default.
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- W3095086994 date "2020-11-01" @default.
- W3095086994 modified "2023-10-16" @default.
- W3095086994 title "Clinical and prognostic significance of C1q deposition in IgAN patients-a retrospective study" @default.
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- W3095086994 doi "https://doi.org/10.1016/j.intimp.2020.106896" @default.
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