系统性红斑狼疮与CDl9基因多态性的相关性研究

目的研究CDl9基因第4外显子705位点（以下简称CDl9基因705位点）多态性在中国南方地区汉族人群中的分布及其与系统性红斑狼疮（SLE）和狼疮肾炎（LN）的相关性。方法103例患者诊断均符合1982年美国风湿病学会修订的SLE分类标准，男13例，女90例，其中62例伴有LN。正常对照组110例，男2l例，女89例。全部研究对象均为无血缘关系的中国南方地区汉族人群。应用聚合酶链反应-限制性片段长度多态性（PCR-RFLP）方法，对所有SLE患者和正常对照者进行CDl9基因705位点多态性检测。结果CDl9基因705位点多态性在中国南方地区汉族人群中普遍存在。SLE患者CDl9基因705位点基因型和等位基因频率分布与正常对照组比较差异无统计学意义（P〉0．05）；CDl9基因705位点基因型和等位基因频率分布，按性别分层后，男性和女性SLE患者分别与正常对照组比较及LN患者和正常对照组比较以及伴有LN患者与未伴有LN的SLE患者间比较，差异均无统计学意义（P〉0．05）。结论CDl9基因705位点多态性与SLE及LN无相关性。     

系统性红斑狼疮与CD19基因多态性的相关性研究

目的研究CD19基因第4外显子705位点(以下简称CD19基因705位点)多态性在中国南方地区汉族人群中的分布及其与系统性红斑狼疮(SLE)和狼疮肾炎(LN)的相关性。方法103例患者诊断均符合1982年美国风湿病学会修订的SLE分类标准,男13例,女90例,其中62例伴有LN。正常对照组110例,男21例,女89例。全部研究对象均为无血缘关系的中国南方地区汉族人群。应用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)方法,对所有SLE患者和正常对照者进行CD19基因705位点多态性检测。结果CD19基因705位点多态性在中国南方地区汉族人群中普遍存在。SLE患者CD19基因705位点基因型和等位基因频率分布与正常对照组比较差异无统计学意义(P>0.05);CD19基因705位点基因型和等位基因频率分布,按性别分层后,男性和女性SLE患者分别与正常对照组比较及LN患者和正常对照组比较以及伴有LN患者与未伴有LN的SLE患者间比较,差异均无统计学意义(P>0.05)。结论CD19基因705位点多态性与SLE及LN无相关性。     

系统性红斑狼疮患者死亡原因分析

目的 了解系统性红斑狼疮(SLE)患者主要死因的变化,分析影响SLE患者病死率和主要死因的因素.方法 回顾分析1986年1月至2006年11月北京协和医院SLE住院患者的死亡病例.结果 近21年SLE的住院患者共2558例,死亡患者195例,其中女性171例,男性24例,女性SLE病死率7.7%,男性SLE病死率7.1%,总病死率7.6%;感染、狼疮脑病和狼疮肾炎(LN)为SLE最常见的主要死因,分别占总死亡人数的30.8%、21.5%和17.4%.SLE发病后第1年内死亡人数最多,占总死亡人数的31.3%,狼疮脑病和感染是发病后第1年内最常见的死因;狼疮脑病患者主要死于发病早期,发病3年内狼疮脑病的死亡人数占狼疮脑病总死亡人数的73.8%;LN多死于狼疮发病10年以后,占LN总死亡人数的32.4%.近21年住院SLE患者的病死率逐渐下降,由1986年至1990年的12.8%降至2001年至2006年11月的5.3%;1986年至1995年SLE最常见的死因为LN,占总死亡人数的29.7%;1996年至2006年11月最常见的死因为感染,占总死亡人数的33.6%.结论 感染、狼疮脑病和LN是SLE的最主要死因,SLE发病第1年内死亡最多见.SLE患者的病死率呈逐渐下降的趋势.1986年至1995年SLE最常见死因为LN,1996年至2006年11月SLE最常见死因为感染.     

系统性红斑狼疮合并弥漫性肺泡出血临床分型比较

目的总结系统性红斑狼疮（SLE）合并弥漫性肺泡出血（DAH）的临床特点。方法21例SLE合并DAH患者根据发病急缓分为急性发病组和亚急性发病组,比较两组患者临床表现、诊治经过和转归。结果两组患者在体温、血压、呼吸困难、血红蛋白下降、血氧饱和度下降、狼疮活动评分、尿蛋白增加和狼疮血管炎样皮疹方面存在显著性差异（P〈0.05）。结论SLE合并DAH是一种异质性疾病,存在急性发病和亚急性发病两种临床类型,急性发病型病情较重,预后较差。     

SLE患者血清MMP-9、TIMP-1水平测定及其临床意义

目的探讨系统性红斑狼疮（SLE）患者血清基质金属蛋白酶9（MMP-9）及其抑制物（TIMP-1）的表达特点及临床意义。方法用双抗体夹心酶联免疫吸附试验（ELISA）检测64例SLE患者（SLE组）和25名健康人（对照组）血清MMP-9和TIMP-1的水平并进行比较分析。结果 SLE组患者血清MMP-9水平明显低于对照组,TIMP-1明显高于对照组（P〈0.01）,且MMP-9/TIMP-1低于对照组（P〈0.05）;SLE患者活动期血清MMP-9、MMP-9/TIMP-1明显低于缓解期（P〈0.05）,但TIMP-1的水平差异无统计学意义（P〉0.05）;狼疮肾炎组MMP-9低于非肾炎组（P〈0.05）,但TIMP-1差异无统计学意义（P〉0.05）;MMP-9及TIMP-1水平在LN各病理类型患者中的差异无统计学意义（P〉0.05）;患者的临床表现与MMP-9及TIMP-1水平无明显关系。结论 MMP-9及TIMP-1可能参与SLE的发病,血清MMP-9水平可作为反映SLE活动程度、肾脏损害的指标。     

巨噬细胞移动抑制因子在儿童系统性红斑狼疮中的作用

目的探讨巨噬细胞移动抑制因子（MIF）在儿童系统性红斑狼疮（SEE）尤其是狼疮肾炎（LN）中的作用地位，从而为探索SLE的发病机制及其临床诊治和疗效观察提供帮助。方法运用酶联免疫吸附试验（ELISA）技术对SLE患儿的血、尿MIF、白细胞介索（IL）-10和肿瘤坏死因子（TNF）-α水平进行检测．与健康志愿者对比分析以明确MIF在SLE，尤其是LN中的作用地位。结果LN组尿MIF水平显著高于非LN组。而血MIF、TNF—d和IL-10及尿IL-10和TNF-α水平两者差异无统计学意义；SLE疾病活动组血IL-10显著高于缓解组，而血MIF、TNF—α及尿IL-10、MIF、TNF—α水平两组差异无统计学意义。结论尿MIF水平可能与LN存在一定相关性，有望成为SLE肾脏损害及疗效观察的监测指标。     

抗核小体抗体与抗C1q抗体在狼疮肾炎血清的表达及其临床意义

目的探讨抗核小体抗体与抗C1q抗体在狼疮肾炎（lupus nephritis，LN）患者血清的表达及其临床意义。方法使用酶联免疫吸附试验（ELISA）对46例LN患者血清进行检测，并与31例无肾炎临床表现的SLE患者作对照。结果LN患者血清中抗核小体抗体与抗C1q抗体浓度及阳性率显著高于SLE对照组（P〈0．01）。抗双链DNA（dsDNA）抗体、抗Sm抗体、抗nRNP抗体、抗心磷脂（aCL）IgG抗体有较高的阳性率，与对照组相比差异有统计学意义（P〈0．05）。将抗核小体抗体、抗C1q抗体、抗dsDNA抗体、抗Sm抗体、抗nRNP抗体和aCLIgG抗体分别引入Logistic回归进行统计分析，结果显示入选的自变量包括抗核小体抗体、抗C1q抗体、抗dsDNA抗体（P〈0．05）。结论在LN患者中，存在着抗核小体抗体、抗C1q抗体的高表达。抗核小体抗体及抗C1q抗体在LN发病中起重要的作用。抗核小体抗体、抗C1q抗体、抗dsDNA抗体是反映SLE患者并发肾脏损害的重要指标，在LN诊断和判定其活动性方面有重要作用。     

狼疮肾炎患者外周血单核细胞载脂蛋白EmRNA表达及意义

目的研究外周血单核细胞载脂蛋白E（apoE）mRNA表达，初步探讨apoE在狼疮肾炎（LN）中的作用和意义。方法系统性红斑狼疮（SLE）患者19例，其中LN患者13例：LN-Ⅳ型（弥漫性LN）8例、LN-Ⅱ型（系膜增生性LN）5例，非LN的SLE患者组6例，健康对照组8名。通过密度梯度离心法分离外周血单核细胞，反转录-聚合酶链反应检测单核细胞apoEmRNA表达量。结果LN-Ⅳ型组apoEmRNA表达量明显高于LN-Ⅱ型组（脚．006）和其他两组（均为P=O．000）。与正常对照组和非LN的SLE组比较，LN-Ⅱ型组表达也上调，P值分别为0．018和0．031，正常对照组和非LN的SLE组之间差异无统计学意义，P=O．276。19例患者apoEmRNA表达量与外周血总胆固醇（TC）、甘油三酯（TG）水平之间无直线相关关系，P值分别为0．697，0．647。LN-Ⅳ型组、LN-Ⅱ型组、非LN的SLE组血清总胆固醇水平无差异，P=0．764，3组TG差异也无统计学意义，P=0．525。LN-Ⅳ型组肾脏病变活动指数高于LN-Ⅱ型组，P=0．006。结论LN患者单核细胞apoE表达水平可能与体内免疫反应和活动性炎症病变有关。     

骨桥蛋白血清白细胞介素-8与狼疮肾炎的病理临床关系

骨桥蛋白（osteopotin，OPN）与系统性红斑狼疮（SEE）的临床活动有关，白细胞介素8（interleukin-8，IL-8）与狼疮肾炎（Lupus Nephritis，LN）的肾损害关系密切。为了探讨狼疮肾炎（LN）患者肾小管OPN表达和血浆IL-8的浓度及其意义，本研究检测了LN患者的OPN，并分析其表达与病理分型、临床表现和血清IL-8的关系。     

血清B淋巴细胞刺激因子在系统性红斑狼疮中的意义

目的 研究血清B淋巴细胞刺激因子（Blys）在系统性红斑狼疮（SEE）中的意义。方法 酶联免疫吸附试验（ELISA）法检测125例SLE患者血清Blys水平，并与狼疮活动程度和临床表现进行相关性分析。结果 125例SLE患者血清平均Blys水平显著高于正常对照组[（0．72±0．18）ng／ml vs（0．34±0．10）ng／ml，P=0．0031]；SLE患者血清平均Blys水平与SLE疾病活动指数（SLEDAI）积分呈一定程度相关性（r=0．73，P=0．018）；SLE患者血清Blys水平与抗dsDNA抗体滴度呈正相关，而与血清IgG、补体、蛋白尿、白细胞、血小板计数，以及皮疹、关节痛、口腔溃疡、脱发、发热等临床表现等均无显著相关性（P〉0．05）。结论 SLE患者血清Blys水平升高，与狼疮活动呈一定相关性，但不能准确反映病变部位及严重程度。     

Systemic lupus erythematosus in 18 Brazilian males: Clinical and laboratory analysis

Summary The clinical and laboratory features of 18 males were compared with 254 female patients with systemic lupus erythematosus (SLE). At disease onset male patients were younger than female. Nephropathy, nephrotic syndrome and thrombocytopenia were significantly more frequent in male patients (p<0.05). Pleuritis occurred as the initial symptom at a significantly higher frequency in males (p<0.05). No significant immunological difference was found between two groups, except for anti-Sm antibodies which were more frequent in males than in females, but were measured in few patients.We concluded that male patients with SLE have a more severe disease, with higher morbidity, specially related to renal disease.     

系统性红斑狼疮患者发病及就医行为的现况调查

目的 回顾性分析系统性红斑狼疮(SLE)的发病形式、临床特点以及患者发病后的就诊情况.方法 采用流行病学现况调查的研究方法,随机调查了300例SLE患者,了解其自发病以来的临床表现以及发病后的就诊情况,并采用SPSS 13.0统计软件包进行统计学分析.结果 ①在300例SLE患者中,男女之比为1:13.②首发临床表现以关节痛/炎最多,其次为皮疹、发热,分别占46.3%、34.0%、32.7%.与女性患者相比,男性更容易于发病时即出现肾脏损害.60.9%的患者于发病起1年内出现肾脏损害,提示自SLE发病起1年为肾脏损害的高发期.③患者首次就诊选择风湿免疫科者较少,仅占35.3%(106/300),但风湿免疫科的确诊比例最高,为99.1%(105/106).从出现临床症状到患者就诊的中位时间为半个月,从患者出现症状到确诊SLE的中位时间为3个月,有23.7%的患者需要1年以上方能确诊.结论 关节痛/炎、皮疹、发热为SLE最常见的首发临床表现.与女性患者相比,男性患者更容易出现肾脏损害.发病后不能正确选择科室就诊、诊断延误的SLE患者仍占相当大比例.     

Systemic lupus erythematosus in Egyptian children

The aim of the study was to study the characteristics of systemic lupus erythematosus (SLE) in the Egyptian population, comparing it to other populations. We retrospectively studied 207 patients with SLE diagnosed between 1990 and 2005. We obtained clinical features and laboratory data and analyzed them statistically. We studied 151 female and 56 male SLE patients. The female to male ratio was 2.7 to 1 and the mean age at presentation was 10 ± 2.7 years (range 2–16). The mean disease duration was 6.47 ± 3.74 years. At diagnosis, musculoskeletal, constitutional and mucocutaneous manifestations were the commonest features. During follow-up, the prevalence of nephritis (67%), hematological manifestations (44.9%), photosensitivity (44%), arthritis (39%), malar rash (38.2%), serositis (32.9%) and neuropsychiatric manifestations (24.25%) increased significantly. Those whose age of onset of the disease was ≤5 years (nine patients) had significantly more common hematological affection (P value = 0.0005). The characteristics of SLE in Egyptian patients show some similarities to other series of Middle Eastern countries, but with a lower female to male ratio. Disease onset below 5 years is extremely rare (4.35%), commonly presenting with hematological manifestations. The kidney was the commonest major internal organ involved, and also an important cause of death.     

男性系统性红斑狼疮的临床特点分析

目的 探讨男性系统性红斑狼疮(SLE)的临床特点.方法 对1997年1月至2006年12月收治的325例SLE(男性38例,女性287例)患者进行总结分析,将男性SLE的临床表现及相关实验室检查与女性SLE进行对比分析.结果 ①在肾外临床表现方面,男性多浆膜腔炎发生率明显高于女性(P＜0.05),而关节痛、蝶形红斑、口腔溃疡、神经精神狼疮的发生率均明显较女性低,非感染性发热、脱发、光过敏、雷诺现象的发生率男女间差异无统计学意义.②在肾脏受损方面,男性患者肾脏损害发生早,以肾损害为首发症状的发生率男性高于女性(P＜0.05),1年内误诊为原发性肾脏病的发生率男性高于女性(P＜0.01).③在实验室检查方面,男性血小板减少发生率明显较女性高,而抗ENA总抗体、抗Sm抗体、贫血及高γ球蛋白血症发生率男性明显较女性低,抗核抗体(ANA)阳性率、抗RNP抗体阳性率、C3降低、红细胞沉降率(ESR)增快及白细胞减少方面两组差异无统计学意义.结论 男性SLE以肾损害发生早、误诊率高-肾外临床表现不典型为特点,临床上要注意男性SLE的早期诊断,及时治疗.     

Time of initial appearance of renal symptoms in the course of systemic lupus erythematosus as a prognostic factor for lupus nephritis

The prognosis of lupus nephritis (LN) was studied retrospectively in two LN categories, LN manifested initially at systemic lupus erythematosus (SLE) onset (I-LN) and LN of delayed manifestation after SLE onset (D-LN), based on a chart review (C) of 154 SLE (85 LN) patients with a mean observation of 20.8 ± 9.3 years and a questionnaire study (Q) of 125 LN patients outside our hospital with mean observation of 17.6 ± 9.2 years. In both study groups, half of I-LN patients were relapse-free by Kaplan–Meier analysis after initial therapy, and the relapsed I-LN patients responded to retherapy at higher 5-year relapse-free rates than those of patients receiving initial therapies for D-LN. At last observation, a higher frequency of prolonged remission was shown in I-LN compared with D-LN patients (C: 22/31, 71% versus 14/49, 29%, P < 0.01; Q: 65/89, 73% versus 11/33, 33% P < 0.01) and also a higher frequency of irreversible renal damage in D-LN compared with I-LN patients (C: 25/49, 51% versus 2/31, 6%, P < 0.001; Q: 14/33, 42% versus 6/89, 7%, P < 0.001), although class IV pathology was common in patients (C) in both LN categories. Onset time of lupus nephritis in the course of SLE may affect renal prognosis.     

狼疮肾炎危险因素分析

目的探讨狼疮肾炎(LN)病变的危险因素。方法对79例LN患者进行回顾性分析,并与同期住院的91例无肾炎病变的SLE患者作对照。所有实验室检查均采用标准方法。结果LN患者占同期住院患者的40.3%。与无肾炎病变的SLE患者作对照,其发病年龄明显小于对照组(P<0.001),两组性别和病程方面差异无显著性(P>0.05)。实验室指标对比显示,抗dsDNA抗体、抗Sm抗体、抗心磷脂抗体(aCL)和抗中性粒细胞胞质抗体(ANCA)在LN组有较高的阳性率,与对照组相比差异有显著性(P<0.05)。结论发病年龄小,存在抗dsDNA抗体、抗Sm抗体、aCL和ANCA阳性是SLE易并发肾炎的危险因素。     

New-onset systemic lupus erythematosus during pregnancy

Few studies have been published focusing on the clinical features of new-onset systemic lupus erythematosus (SLE) during pregnancy. This study examined the clinical characteristics of SLE during pregnancy or puerperium. The clinical characteristics and serological parameters of 48 patients with onset of SLE during pregnancy were retrospectively compared with those of age-matched new-onset SLE patients who were diagnosed in a period of more than 12 months without pregnancy (n?=?65) and age-matched preeclampsia patients (n?=?48). SLE tended to occur during the first and second trimesters (33 and 42 %, respectively). Lupus nephritis (LN) and severe thrombocytopenia were more commonly seen in new-onset SLE during pregnancy than in patients without pregnancy (68.8 vs 35.4 % and 25 vs 9.2 %, respectively, p?<?0.05). However, pregnant patients had lower frequency of fever, arthritis, arthralgia, alopecia, oral ulcer, and hypocomplementemia than the nonpregnant controls (p?<?0.05). Compared to LN patients without pregnancy (n?=?23), LN patients with pregnancy (n?=?33) had more prominent proteinuria and nephrotic syndrome (p?<?0.05). On the other hand, when compared to patients with preeclampsia, patients with new-onset SLE during pregnancy had early onset of symptoms during gestation and were characterized by presence of fever, malar lesion, autoantibodies, hypocomplementemia, hyperuricemia, active urinary sediment, and multi-organ involvement. In conclusion, patients with their first onset of lupus during pregnancy generally have more severe disease with higher prevalence of renal and platelet involvement.     

1958例系统性红斑狼疮住院患者首发表现和起病特点的回顾分析

目的 分析江苏省15所医院近10年来系统性红斑狼疮(SLE)住院患者的首发表现和起病特点.方法 由各参研单位根据统一方式收集病历资料,汇总建立资料数据库,进行回顾分析,组间的计数资料比较采用X2检验.结果 ①入选病例共1958例,男女比例1∶15.0.②首发症状明确者1798例,最多见的是皮肤黏膜损害(769例,占42.8%)和关节炎(697例,占38.8%).其中皮肤黏膜损害主要表现为颊部红斑(706例).在首发症状中与男性相比,女性关节炎比例显著增高.③所有病例在首次住院时均有多器官多系统受累:皮肤黏膜受累(82.3%)最为常见;血液系统损害:74.0%出现血细胞3系中至少1系减低;肌肉骨骼受累以关节炎(1156例,占56.5%)明显多于肌炎(51例);发现蛋白尿1046例,血尿385例,肾活检病理显示以Ⅳ型肾炎为主.结论 ①SLE住院患者以女性为主,男女比例1∶15.0.②皮肤黏膜损害和关节炎是SLE的最常见首发表现;与男性相比,女性更容易出现关节炎.③初次住院病例受累最多的器官或系统为皮肤黏膜、血液、关节和肾脏,肾活检病理显示以Ⅳ型病变为主.

Abstract：

Objective To investigate the initial manifestation and disease onset feature of systemic lupus erythematosus(SLE) in the past ten years in fifteen hospitals in Jiangsu Province.Methods Data was collected by the same Methods in all the participated hospitals and then it was summarized for retrospective analysis.Two groups were compared by chi-square test.Results ① One thousand nine hundred and fifty eight patients were investigated and the male-to-female ratio was 1∶15.0.② One thousand seven hundred and ninty eight patients had clear initial manifestations.The most common initial manifestations were skin and mucosal lesions(769 cases,42.8％ ) and arthritis (697 cases,38.8％ ).The main skin lesion was malar rash (706 cases).Arthritis was found to be more common in female than male.③ All hospitalized patients at their first admission showed multiple organ/system involvement:the most common involvement was skin and mucous membrane (82.3％),hematologic damage (74.0％),in which at least one series of blood cells were involved,arthritis (1156 cases,56.5％ ) much more than myositis (51 cases),proteinuria 1046 cases and hematuria in 385 cases.Renal biopsy pathology showed type Ⅳ glomerulonephritis.Conclusion ① SLE patients are mainly female and the male to female ratio is 1∶15.0.② The most common initial manifestations are skin and mucosal lesions.③ The most commonly involved organ/system are skin and mucous membrane,blood,joint and kidney.The most common pathological changes shown in renal biopsy is type Ⅳ glomerulonephritis.     

Protein-losing enteropathy in systemic lupus erythematosus: analysis of the clinical features of fifteen patients.

OBJECTIVE: Protein-losing enteropathy (PLE) is an unusual manifestation of systemic lupus erythematosus (SLE), so its clinical manifestations and management are not well understood. In this study, we try to characterize the basic clinical features and the management of PLE by retrospectively analyzing the clinical data of 15 PLE patients and hope this study can improve the awareness of PLE in lupus patients with severe hypoalbuminemia that could not be explained by other causes. METHODS: The clinical data of 15 SLE patients with PLE hospitalized during November 2001 and April 2006 in Peking Union Medical College Hospital were retrospectively reviewed. The PLE was diagnosed by Tc-99m albumin scintigraphy (99mTc-HAS). The clinical characteristics, laboratory tests, response to treatment, and the outcome were studied. RESULTS: The mean age of PLE onset was 40.1 +/- 15.4 years (19-71 years). Twelve were female and 3 were male. 53.3% (8 of 15) patients had PLE as the initial presentation of SLE. All patients had different degree of peripheral pitting edema. Eleven had ascites, 9 had pleural effusion, and 7 had pericardial effusion. Only 6 patients presented with abdominal pain and diarrhea. Positive antinuclear antibodies (HEP-2) with a speckled pattern were found in all patients, but the antidsDNA antibody was negative in most cases. All patients had marked hypoalbuminemia, 80% had hypocomplementemia, 66.7% had hyperlipoproteinemia, and 40% had hypocalcemia. The liver function tests and the prothrombin time were in normal ranges. The 24-hours urine protein was less than 0.5 g in 60% (9 of 15) and more than 1.0 g in 20% (3 of 15) patients who were renal biopsied but only found to have very mild pathologic changes. Gastrointestinal endoscopy examination discovered generalized edema in the intestinal wall whereas the biopsy showed chronic inflammation only. Most cases had good response to corticosteroid and immunosuppressive therapies. The serum albumin level improved evidently in all patients after treatment and normal scintigraphic finding was found in 9 patients. CONCLUSION: PLE can be the initial presentation of SLE or can develop a very long time after the diagnosis of SLE. The prominent clinical presentations are caused by hypoalbuminemia. 99mTc-HAS is useful not only for the diagnosis of PLE but is also helpful for monitoring the efficacy of treatment. When a SLE patient presents with evident hypoalbuminemia without evidence of other causes, PLE should be considered. Early diagnosis and treatment may improve the prognosis.     

Late onset lupus nephritis: analysis of clinical manifestations and renal pathological features in Chinese patients

The objectives of the study are to analyze the clinical and pathological features of 35 Chinese patients with late onset lupus nephritis (LN) in a single center. All the LN patients followed-up in our lupus clinic center from 1986 to 2008 were enrolled in this retrospective study. Thirty-five patients with a disease onset beyond the age of 50 years were identified. One hundred systemic lupus erythematosus (SLE) patients who had their disease onset before the age of 50 years were randomly recruited as controls. All of them received renal biopsy. The histological classifications were categorized according to 2003 International Society of Nephrology/Renal Pathology Society (ISN/RPS) classification. All of patients were Han Chinese. The mean age of onset of SLE for late onset and the control groups were 55.7 ± 6.5 years (range: 50–76) and 28.9 ± 7.6 years (range:18–48).The female to male ratio was smaller in the late onset SLE group, 2.9–1, compared with 7.3–1 in the control. The patients with hypertension in late onset LN were much more than that in control group. The renal histological classes showed no significant difference between the two groups. Classes IV, V, IV + V were common in late onset LN patients. There were no significant differences in extra renal manifestations except for a lower prevalence of malar rash, a higher leukopenia and skin vasculitis in the late onset patients. As to the immunological features, serum antineutrophil cytoplasmic antibodies (ANCA) and SSA positivity were more common in late onset LN patients. The patients with hypertension in late onset LN were much more than that in control group. The renal histological classes showed no significant difference between the two groups. Leukopenia and serum ANCA were more common. The results suggest a more severity of the disease in late onset LN.