Diffuse Proliferative Lupus Nephritis Research Articles

Predictive Factors and Long Term Outcome in Lupus Nephritis in Libya

Lupus Nephritis (LN) is a major cause of morbidity and mortality in patients with systemic lupus erythematosus. Prompt recognition and treatment of renal disease is important, as early response to therapy is correlated with better outcome. The main purpose of this study is evaluation lupus nephritis, outcome of lupus nephritis, and studies predictive factors in lupus nephritis are improved outcome. Patient and methods: Follow up study patients diagnosed as Systemic Lupus Erythematosus (SLE) according to the American College of Rheumatology (ACR), from the registration file of Rheumatology clinic, These patients were studied clinically for the presence of lupus nephritis, laboratory test CBP, ESR, RFT, Urine sedimentation, USS Abdomen, Doppler renal and use immunology test ANA positively was more than 1:160, anti-DNA Serum compliment levels (C3, C4), anti-ENA. Result: Clinical presentation of lupus nephritis was asymptomatic lupus nephritis is (6.6%), Nephritis lupus nephritis (24 h urine collection<3 g/d) is (36.8%), Nephrotic disease (24 h urine collection ≥ 3 g/d) is (28.9%) and acute renal failure is (27.6%), Albumin urine collection g/d range from 0.6-6 g/24 h, M=2.1 ± 1.1, blood urea ranged from 18-200 mg/dl, M=90.9 ± 47.6, serum creatinine was 0.5-6.7 mg/dl, M=2.6 ± 1.8, Hypertension patients of lupus nephritis was (89.5%). Positive ANA was (93.4%), positive Ds DNA was (94.7%), and low complement C3, C4 was (94.7%) and positive anti cardiolipin antibody AGL was (23.7%) recurrent attack lupus nephritis was (14.5%). The renal biopsy was done found diffuse proliferative lupus nephritis was (45.5%), Focal proliferative lupus nephritis was (20.8%) and mesangial proliferative lupus nephritis was (16.9%). management of lupus nephritis and choice of therapy according guideline European League against Rheumatism (EULAR), patients were received azathioprine (13.2%), IV injection Cyclophosphamide therapy was (21.1%), mycophenolate mofetil was (55.3%) and injection rituximab was (10.5%). Outcome lupus nephritis was complete response (64.5%), Partial response was (13.2%), resistance lupus nephritis was (22.1%), end stage renal failure on hemodialysis was (7.9%), conservative chronic renal failure was (14.5%) and mortality of lupus nephritis was (13.2%) Conclusion: Most common type diffuse proliferative lupus nephritis followed Focal proliferative lupus nephritis then mesangial proliferative lupus nephritis, induction therapy with mycophenolate mofetil or cyclophosphamide or rituximab in inducing complete remission of lupus nephritis is 64%. Even with standard therapy the end stage renal failure was (14.5%) and mortality of lupus nephritis was (13.2%) in this study. The impact of several factors like sex, age, race, duration of lupus nephritis, serum urea, serum creatinine and renal biopsy have statistical significance correlation and predictive effect on outcome lupus nephritis.

Kidney Disease in Pregnancy

Pregnancy-induced changes in renal hemodynamics play an important role in favorable maternal and fetal outcomes. Renal plasma flow and glomerular filtration rate (GFR) increase by approximately 50% in normal pregnancy, leading to a decrease in both blood urea nitrogen and serum creatinine when compared with prepregnancy levels. Hence, serum creatinine–based formulas are not accurate in calculating estimated GFR in pregnant patients. The most compelling risk for pregnant women with moderate to severe chronic kidney disease is the risk of rapid progression of underlying kidney disease; the mechanisms for such decline are yet to be elucidated. The rule of kidney disease not progressing when serum creatinine is less than 1.4 mg/dL does not apply to women with lupus nephritis. New-onset lupus is an indication for kidney biopsy during pregnancy because diffuse proliferative lupus nephritis requires prompt treatment and first-line treatments are teratogenic. Infertility is common in women on dialysis and is usually reversed after successful kidney transplantation. Pregnancy outcomes have improved over the years with increasing intensity of hemodialysis in end-stage kidney disease patients. Pregnancy post–kidney transplantation should be planned and teratogenic medications discontinued before conception. Key words: glomerular filtration rate, proliferative lupus nephritis, serum creatinine, pregnancy post–kidney transplantation, end-stage kidney disease, infertility, kidney biopsy

Renal tubular epithelial cell-derived BAFF expression mediates kidney damage and correlates with activity of proliferative lupus nephritis in mouse and men.

B-cell activating factor of the tumour necrosis factor family (BAFF) is a cytokine, mainly produced by hematopoietic cells (e.g. monocytes/macrophages, dendritic cells), indispensable for B-cell maturation. The BLISS studies have demonstrated that blocking BAFF by the human monoclonal antibody belimumab is a valuable therapeutic approach in patients with clinically and serologically active systemic lupus erythematosus (SLE). However, the defined sources of BAFF, which contributes to SLE, are still unclear. Recent findings show that BAFF expression is not restricted to myeloid cells. Since lupus nephritis is the main cause of morbidity and mortality for SLE patients, the aim of this study was to investigate whether renal tubular epithelial cells (TEC) are an important source of BAFF and thus may contribute to the pathogenesis and progression of SLE. We found BAFF expression both in cultured murine and human TEC. These results could be verified with in situ data from the kidney. Moreover, BAFF expression in the kidneys of lupus-prone MRL- Faslpr mice correlated with disease activity, and BAFF expression on TEC in biopsies of patients with diffuse proliferative lupus nephritis showed a correlation with the histopathological activity index. Invitro functional assays revealed an autocrine loop of BAFF with its binding receptors on TEC, resulting in a strong induction of colony stimulating factor-1. Finally, we identified divergent effects of BAFF on TEC depending on the surrounding milieu ('inflammatory versus non-inflammatory'). Taken together, our findings indicate that renal-derived BAFF may play an important role in the pathophysiology of the systemic autoimmune disease SLE.

Systemic Lupus Erythematosus (Sle) with Diffuse Proliferative Lupus Nephritis and Pulmonary Alveolar Hemorrhage with Secondary Herpes Zoster: A Case Report

Systemic Lupus Erythematosus (Sle) with Diffuse Proliferative Lupus Nephritis and Pulmonary Alveolar Hemorrhage with Secondary Herpes Zoster: A Case Report

Transition from lupus podocytopathy to diffuse proliferative lupus nephritis without proteinuria in childhood-onset systemic lupus erythematosus.

Transition from lupus podocytopathy to diffuse proliferative lupus nephritis without proteinuria in childhood-onset systemic lupus erythematosus.

Kidney Disease in Pregnancy

Pregnancy-induced changes in renal hemodynamics play an important role in favorable maternal and fetal outcomes. Renal plasma flow and glomerular filtration rate (GFR) increase by approximately 50% in normal pregnancy, leading to a decrease in both blood urea nitrogen and serum creatinine when compared with prepregnancy levels. Hence, serum creatinine–based formulas are not accurate in calculating estimated GFR in pregnant patients. The most compelling risk for pregnant women with moderate to severe chronic kidney disease is the risk of rapid progression of underlying kidney disease; the mechanisms for such decline are yet to be elucidated. The rule of kidney disease not progressing when serum creatinine is less than 1.4 mg/dL does not apply to women with lupus nephritis. New-onset lupus is an indication for kidney biopsy during pregnancy because diffuse proliferative lupus nephritis requires prompt treatment and first-line treatments are teratogenic. Infertility is common in women on dialysis and is usually reversed after successful kidney transplantation. Pregnancy outcomes have improved over the years with increasing intensity of hemodialysis in end-stage kidney disease patients. Pregnancy post–kidney transplantation should be planned and teratogenic medications discontinued before conception.

Factors associated with relapse of lupus nephritis: A single center study of 249 cases.

This is a retrospective cohort study over 20 years (1990-2013) that included all patients with biopsy-proven lupus nephritis (LN) followed up at our nephrology department. We aimed to determine the clinicobiologic predictors of flare-up of LN. Flare was defined as an increase in systemic lupus erythematosus (SLE) disease activity index (SLEDAI) score of at least four points. Clinical manifestations and laboratory parameters were assessed and the SLEDAI score was determined for each patient. We included patients with SLE who fulfilled at least four of the American College of Rheumatology criteria for the classification of SLE. A total of 249 patients including 227 females and 22 males with a median age at diagnosis of 34.32 years (range 16-69) were studied. The mean follow-up duration was 122.4 ± 27 months. Renal symptoms included hypertension in 40%, nephrotic syndrome in 30%, and renal failure in 69.4% of the cases. Class IV and class III nephritis (ISN/RPS) were observed in 44.9% and 24% of the patients, respectively. On univariate analysis, flare predictors were age <30 years (P = 0.02), lymphocytopenia (P = 0.002), the presence of diffuse proliferative LN (P = 0.009), and discontinuation of immunosuppressive therapy (P = 0.004). Our study suggests that these markers should be monitored routinely as prognostic parameters in SLE to characterize patients who are at risk and who should be followed more closely.

Histopathological findings of renal biopsy in systemic lupus erythematosus

Introductions: Classifying morphological pattern of renal involvement is important in systemic lupus erythematosus (SLE) for definitive treatment and prognosis. This study aims to analyse the histopathological pattern of glomerula in SLE patients.Methods: This was a retrospective chart review of patients diagnosed with SLE who had renal biopsy during October 2013 to September 2015 at Patan Hospital.Results: There were 38 patients of SLE. Antinuclear antibody (ANA) was positive in all 38 (100 %), Anti-dsDNA seen in 18 (47.4%). Active urinary sediment &amp; proteinuria was seen in 25 (65.8%) patients and proteinuria in 13 (34.2%) patients. Histopathological patterns were of glomerular involvement, ISN Class II in 2 (5.3%), Class III in 2 (5.3%), class IV in 20 (52.5%), Class V in 6 (15.8%) and mixed IV-V in 8 (21.1%).Conclusions: The diffuse proliferative lupus nephritis (ISN Class IV) was the most common pattern of lupus nephritis encountered in our study followed by mixed pattern (ISN Class IV &amp; V) and membranous lupus nephritis (ISN class IV). Journal of Patan Academy of Health Sciences. 2016 Dec;3(2):10-14

Serum Cytokines Th1, Th2, and Th17 Expression Profiling in Active Lupus Nephritis-IV: From a Southern Chinese Han Population.

Systemic lupus erythematosus (SLE) is a chronic autoimmune disease characterized by aberrant T cell immune response. Diffuse proliferative lupus nephritis (LN-IV) is the most common, severe, and active form of lupus nephritis. In this study, we investigated the production of Th1, Th2, and Th17 cytokines in prediction of active form of LN-IV. ProcartaPlex multiplex immunoassays panels were used for detection of serum Th1, Th2, and Th17 cytokines profiling. Th1 and Th17 cytokines (IL-18, IFN-γ, IL-12p70, IL-6, and IL-17A) were considerably expressed in the serum of lupus nephritis IV patients in comparison to the healthy control. However, only IL18 and IL6 were higher in class IV versus class III lupus nephritis. Importantly, the ratios of Th1/Th2 (IL-18/IL-4) and Th17/Th2 (IL-17A/IL-4) were significantly elevated in LN-IV when compared with LN-III, LN-V, and healthy controls. Consistently, the serum cytokines IL-18, IL-17A, and IFN-γ were markedly expressed in LN-IV patient glomeruli and interstitial tissue compared to other classes of LN by IHC. ROC further suggests that IL-18 was a potential marker for LN-IV. The data from our study suggests that the early detection and quantification of these cytokines may help in prediction of active form of LN-IV.

Lupus nephritis: an update.

Lupus nephritis (LN) is an inflammatory condition of the kidneys that encompasses various patterns of renal disease including glomerular and tubulointerstitial pathology. It is a major predictor of poor prognosis in patients with systemic lupus erythematosus (SLE). Genetic factors, including several predisposing loci, and environmental factors, such as EBV and ultraviolet light, have been implicated in the pathogenesis. It carries a high morbidity and mortality if left untreated. Renal biopsy findings are utilized to guide treatment. Optimizing risk factors such as proteinuria and hypertension with renin-angiotensin receptor blockade is crucial. Immunosuppressive therapy is recommended for patients with focal or diffuse proliferative lupus nephritis (Class III or IV) disease, and certain patients with membranous LN (Class V) disease. Over the past decade, immunosuppressive therapies have significantly improved long-term outcomes, but the optimal therapy for LN remains to be elucidated. Cyclophosphamide-based regimens, given concomitantly with corticosteroids, have improved survival significantly. Even though many patients achieve remission, the risk of relapse remains considerably high. Other treatments include hydroxychloroquine, mycofenolate mofetil, and biologic therapies such as Belimumab, Rituximab, and Abatacept. In this paper, we provide a review of LN, including pathogenesis, classification, and clinical manifestations. We will focus, though, on discussion of the established as well as emerging therapies for patients with proliferative and membranous lupus nephritis.

Remission of proteinuria indicates good prognosis in patients with diffuse proliferative lupus nephritis

Proteinuria is a well-known risk factor for the progression of renal dysfunction in chronic kidney disease; however, its importance for estimating the prognosis of lupus nephritis requires verification. Korean adult patients with renal biopsy-diagnosed diffuse proliferative lupus nephritis who had undergone three or more consecutive urine protein to creatinine ratio or urine dipstick tests within six months after renal biopsy were enrolled. The cumulative risks, predictors, and outcomes of proteinuric remission and flare were evaluated. This study included 26 men and 167 women with a mean age at renal biopsy of 31.2 ± 9.8 years. Eighty-two (42.5%) patients experienced proteinuric remission during the follow-up period. During a mean follow-up of 157.9 ± 69.5 months, among patients who achieved proteinuric remission, one died, one developed end-stage renal disease (ESRD), and two had composite outcomes; among patients without remission, nine died, 24 developed ESRD, and 30 had composite outcomes. Patients who achieved proteinuric remission had a 0.089-fold risk (95% CI: 0.011-0.736) of mortality, 0.110-fold risk (95% CI: 0.013-0.904) of incident ESRD, and 0.210-fold risk (95% CI: 0.048-0.920) of a composite outcome compared to patients without remission. Among the 82 patients who achieved proteinuric remission, 59 (72.0%) experienced at least one proteinuria flare; however, relapse did not correlate with the incidence of outcomes. In conclusion, proteinuric remission is an independent predictive prognostic marker of good renal survival and mortality, regardless of the interval from biopsy to remission, recurrence of proteinuria after remission, renal function status at remission, or hematuria remission.

Long-term renal outcomes of childhood-onset global and segmental diffuse proliferative lupus nephritis.

Data on global (IV-G) and segmental (IV-S) diffuse proliferative lupus nephritis (DPLN) in children are lacking. To determine the clinicopathology and prognosis of DPLN subclasses IV-G and IV-S, we analyzed the clinical, laboratory, and demographic data of 56 children aged <18 years diagnosed with DPLN [36 (64.3%) with IV-G; 20 (35.7%) with IV-S] between 2004 and 2013. Clinical endpoints were: (1) complete remission (CR), (2) chronic kidney disease [CKD; defined as estimated glomerular filtration rate (eGFR) of <60 mL/min/1.73 m(2) or end-stage renal disease (ESRD)], and (3) death. Proteinuria and the activity index were higher in patients with IV-G (p < 0.05). Global endocapillary proliferation and leukocyte exudation were predominant in IV-G patients, whereas segmental endocapillary proliferation was predominant in patients with IV-S (p < 0.005). CR rates in IV-G and IV-S patients were 50 and 60%, respectively (p = 0.47). Renal survival rates, defined as an eGFR of ≥60 mL/min/1.73 m(2), were 93, 78, and 64% at 1, 5, and 10 years, respectively. Patient survival rates at 1, 5, and 10 years were 98, 96, and 91%, respectively. Patient and renal survival rates were similar in both subclasses. Although patients with IV-G and IV-S displayed some clinical and histopathological disparities, renal outcomes were similar. The majority of children with DPLN reached adulthood but accrued significant renal damage. Treatment regimens which can slow the progression of CKD are needed.

Therapeutic effect of double-filtration plasmapheresis combined with methylprednisolone to treat diffuse proliferative lupus nephritis.

The efficacy of double-filtration plasmapheresis (DFPP), combined with methylprednisolone, to treat diffuse proliferative lupus nephritis (LN) was studied. Twenty-four patients who were admitted to the hospital and diagnosed with diffuse proliferative LN (LN Class IV-G(A)) through renal biopsy from 2011 to 2013 were recruited as the study subjects. The patients' clinical manifestations were nephritic syndrome and/or renal insufficiency. The pathological features were glomerular diffuse proliferative lesions. The patients were divided into two groups: the treatment group and the control group, with 12 patients in each group. The patients in the treatment group were first treated with DFPP combined with methylprednisolone (0.8-1.0 mg/kg/day); subsequently, they were put on methylprednisolone therapy only. The patients in the control group were first put on methylprednisolone pulse therapy (500-1,000 mg) for 3 days; subsequently, they were treated with methylprednisolone (0.8-1.0 mg/kg/day) combined with mycophenolate mofetil (1.5 g/day). The patients were observed for 24 months. Levels of hemoglobin, platelet, albumin, serum creatinine, 24-h urinary protein, serum C3 , antinuclear antibody (ANA), anti-dsDNA, and anti-Smith were measured at 0, 3, 6, 12, and 24 months. Complete remission and recurrence standards were established. The total dosages of methylprednisolone were calculated. Repeated renal biopsy was performed on several patients. There was no statistical significance in the baseline conditions of the treatment and the control groups. For the treatment group, no plasmapheresis-related complications occurred. The two groups showed no significant difference in complete remission. The patients' edema and serous effusion resolved, urine volume, serum creatinine, and albumin levels returned to normal, urine protein decreased in treatment group more rapidly than the patients in the control group. The mean dose of methylprednisolone received in the treatment group was lower than in the control group. The complement C3 levels in the treatment group were significantly higher than in the control group. The recurrence rate in the treatment group was lower than in the control group. Repeated renal biopsies on several patients in the treatment group indicated that their pathology improved significantly, changing from LN (IV) to LN(II-III). Appropriate application of DFPP combined with glucocorticoid therapy could accelerate the remission of diffuse proliferative LN, reduce overall glucocorticoid dosage, prevent recurrence, and maintain C3 level in a higher level. J. Clin. Apheresis 31:375-380, 2016. © 2015 Wiley Periodicals, Inc.

Presentation of Childhood Systemic Lupus Erythematosus in a Tertiary Care Hospital

Background: Systemic lupus erythematosus in children (Paediatric SLE / pSLE) may have a great variability in disease presentation. Any organ system can be involved in pSLE leading to protean clinical manifestations.To evaluate the clinical and serological presentation of pSLE in tertiary renter Bangladesh and to compare it with other populations. Methodology: It was a retrospective cohort study carried out in the department of Paediatrics, Bangabandhu Sheikh Mujib Medical University, Dhaka during the period of January 2005 to December 2013. A total of 70 patients fulfilling the 1997 revised ACR classification criteria for SLE were enrolled in the study. Data was collected in a pre-designed questionnaire. Results: Age range was 2.5 years to 16 years, female: male ratio was 7:1. Duration of disease was 1 month to 18 months. Common clinical presentation included general weakness/fatigue (91%), fever (83%), arthralgia/arthritis (74%), oral ulcer (73%) and skin rash (71%). All the patients were anemic. ANA was positive in 97% cases and anti-ds DNA in 91% cases. More than 65% cases had evidences of renal involvement at the presentation. Among the patients who underwent kidney biopsy, 40% had diffuse proliferative lupus nephritis (WHO class IV) followed by class III in 26% cases. Conclusion: Pediatric SLE patients in our country, compared to other countries had much higher incidence of fever and non-specific complaints such as, general weakness and malaise as presenting symptoms. Thus, a strong index of suspicion should be maintained for early diagnosis of pSLE especially among adolescent girls. DOI: http://dx.doi.org/10.3329/bjch.v38i3.22819 Bangladesh J Child Health 2014; VOL 38 (3) :124-129

Dramatic effects of eculizumab in a child with diffuse proliferative lupus nephritis resistant to conventional therapy

Treatment of systemic lupus erythematosus (SLE) with severe diffuse proliferative nephritis is often challenging, particularly in small children in whom a genetic conditioning is likely to play a role. The effectiveness of standard therapy based on glucocorticoid and immunosuppressive drugs is often unsatisfactory. A 4 year-old girl, whose parents were first-grade cousins of Moroccan ancestry, developed SLE that progressed to severe renal involvement despite standard therapy. She had persistently undetectable serum C4 levels and very low C3 levels (<30 mg/dl), and extremely high anti-DNA titers (>1:640) that remained unmodified during 2 years of follow-up. No mutations of genes encoding for complement inhibitors were detected. Despite aggressive therapy based on prednisone, plasma exchanges, and cyclosporine, the child worsened and eventually developed features of atypical hemolytic uremic syndrome (aHUS). Treatment with eculizumab provided prompt remission of vasculitis, proteinuria, and hematuria, with normalization of renal function. Two attempts to withdraw eculizumab were followed by severe relapses and rescued by reinstating treatment. The child has been treated with eculizumab for > 17 months without relevant side effects. C5 inhibition by eculizumab completely reversed clinical symptoms and laboratory renal signs of severe lupus nephritis. Blocking complement-system activation with the use of targeted drugs may be a new and exciting strategy to treat SLE patients unresponsive to conventional therapy.

Parasites alter the pathological phenotype of lupus nephritis

Lupus nephritis is one of the most serious complications of systemic lupus erythematosus and manifests with considerable phenotypic and histological heterogeneity. In particular, diffuse proliferative lupus nephritis (DPLN) and membranous lupus nephritis (MLN) represent morphologic forms that are polar opposites. DPLN is associated with autoimmune responses dominated by Th1 immune response associated with high levels of interferon (IFN)-γ. In contrast, a Th2 cytokine response is associated with the pathogenesis of MLN. MRL/lpr mice develop human LN-like immune complex-associated nephritis and provide a suitable histological model for human DPLN. Infection with Schistosoma mansoni skewed a Th2-type immune response induction and IL-10 in MRL/lpr mice, drastically changing the pathophysiology of glomerulonephritis from DPLN to MLN accompanied by increased IgG1 and IgE in the sera. T cells in 32-week-old MRL/lpr mice infected with S. mansoni expressed significantly more IL-4 and IL-10 than T cells of uninfected mice; T cells with IFN-γ were comparable between infected and uninfected MR/lpr mice. Thus, the helminthic infection modified the cytokine microenvironment and altered the pathological phenotype of autoimmune nephritis.

Tiny Bubbles: Coronary Aneurysms and Lupus

PRESENTATION Among the cardiac complications that can be spurred by systemic lupus erythematosus, coronary aneurysms are a particularly challenging presentation. A 32-year-old woman with longstanding systemic lupus erythematosus was referred to us for treatment of New York Heart Association class III heart failure, including possible mitral valve replacement. She had diffuse proliferative lupus nephritis (class IV), chronic renal failure, hypertension, chronic anemia, and lung tuberculosis. She had no personal or family history of Kawasaki’s disease, rheumatic heart disease, or coronary artery disease. Her drug regimen consisted of ramipril, bisoprolol, prednisone, isoniazid, rifampicin and pyrazinamide. She did not complain of recent chest, back, or upper limb pain.

Plasma exchange for concurrent lupus nephritis and antiphospholipid syndrome.

Systemic lupus erythematosus (SLE) can be associated with vascular thrombosis due to antiphospholipid antibodies. Accumulating evidence indicates that renal microvascular thrombosis due to lupus anticoagulant is an independent risk factor for poor renal outcome in lupus nephritis [1, 2]. In this report, we present a young woman with diffuse proliferative lupus nephritis and glomerular microthrombosis associated with lupus anticoagulant. Whereas MMF and glucocorticoids failed to induce remission, therapeutic plasma exchange (TPE) led to rapid clinical and immunological recovery.

Significance of Histological Crescent Formation in Patients with Diffuse Proliferative Lupus Nephritis

Background: Although crescentic nephritis is not rare in diffuse proliferative lupus nephritis (DPLN), little is known about the clinicopathological features in DPLN with crescents worldwide. This study was undertaken to investigate the clinicopathological features and outcome of Chinese DPLN patients with different degrees of crescents. Methods: 520 DPLN patients with more than 10% histological crescents (cDPLN) were enrolled in this retrospective study. They were divided into three groups: group 1 (10%≤ crescents <25%, n = 240), group 2 (25%≤ crescents <50%, n = 160), and group 3 (crescents ≥50%, n = 120). Another 100 patients without histological crescents were enrolled as a control group. Clinicopathological features, treatment responses, and outcomes were compared among the four groups. Results: There were 450 (86.6%) females and 70 (13.4%) males with an average age of 31.7 ± 11.4 years. Compared with the control group, cDPLN patients had shorter lupus nephritis duration (20.7 ± 34.1 vs. 30.4 ± 48.9 months), higher prevalence of rapidly progressive glomerulonephritis syndrome (21.8%), and gross hematuria (26.7%). Laboratory findings indicated more severe hypoproteinemia, hyperlipidemia, and renal insufficiency; heavier proteinuria and microscopic hematuria; higher tubular injury parameters, and lower serological activity in crescentic groups. Histologically, cDPLN patients have severe glomerular and tubulointerstitial lesions as well as extensive leukocyte infiltration together with a lesser degree of immune complex deposition. The proportion of death, end-stage renal disease, and treatment failure correlates positively with the degree of histological crescents. Conclusions: cDPLN patients with acute onset and short disease duration mostly show severe renal manifestations, less extrarenal organ involvement, lower serological activity, serious capillary necrosis, severe tubulointerstitial inflammation, atrophy and fibrosis, prominent leukocyte infiltration, less glomerular immune complex deposition, poor treatment response, and worse renal outcome.

AB0674 Higher frequency and worse outcome of lupus nephritis in korean male

BackgroundFemale preponderance is a well-known characteristic of systemic lupus erythematosus (SLE). Males with SLE are a minority group but distinguishable characteristics have been reported. Gender may influence the clinical features...