ABSTRACT
Objective To explore the clinicopathological characteristics of lupus nephritis (LN) with antinucleosome antibody (AnuA).Methods Data of 481 patients with biopsy-proven LN in the First Affiliated Hospital of Zhengzhou University from 2004 to 2011 were analyzed retrospectively.The patients were divided into two groups:AnuA-positive group (76 patients) and AnuA-negative group (405 patients).The clinical manifestations,laboratory examinations,histopathologic classes of LN,disease activity measured by SLE disease activity index (SLEDAI) of two groups were investigated and compared.Results There were 15 male patients in positive group (15/76,19.74％) with mean age of (27.99±10.88) years and 45 patients in negative group (45/405,11.11％) with mean age of (31.15±12.15) years respectively,which showed that male patients were more common in positive group (P＜0.05).Incidences of oral ulcer,fever,anemia,low complement and positive anti-dsDNA antibody were higher in positive group (P＜0.05).Percentage of diffuse proliferative lupus nephritis (class Ⅳ ) and pathological activity index (AI) in positive group were higher compared to negative group (all P＜0.05),while no significant differences of other pathological types,chronic index (CI) and SLEDAI were found between two groups.Conclusion LN patients with positive AnuA have special clinicopathological characteristics and AnuA may be used as a promising biomarker for the proliferative LN.