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Elaziz MMA, Gamal SM, Fayed A, Abu-Zaid MH, Ghoniem SA, Teleb DA. High- and low-dose cyclophosphamide in Egyptian lupus nephritis patients: a multicenter retrospective analysis. Z Rheumatol 2024; 83:115-123. [PMID: 37582953 PMCID: PMC10879243 DOI: 10.1007/s00393-023-01386-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2023] [Indexed: 08/17/2023]
Abstract
BACKGROUND Lupus nephritis (LN) is a common serious presentation of systemic lupus erythematosus. Cyclophosphamide (CYC) and mycophenolate mofetil (MMF) are listed as the first-line drugs in induction therapy for LN. OBJECTIVE This study aimed to compare high- and low-dose CYC in a cohort of Egyptian LN patients. PATIENTS AND METHODS The data of 547 patients with class III/IV active LN who received CYC as induction therapy were retrospectively analyzed. Whereas 399 patients received 6‑monthly 0.5-1 g/m2 CYC doses, 148 patients received six biweekly 500 mg CYC doses. Demographic data, laboratory test results, and disease activity index were recorded and compared at presentation and at 6, 12, 18, 24, and 48 months of follow-up. RESULTS After 48 months, the proportion of patients maintaining normal creatinine levels was higher in the group receiving induction therapy with high-dose CYC (67.9%, 60.4%, p = 0.029), and these patients also had higher proteinuria remission at 36 (26.6%, 14.8%, p = 0.014) and 48 months (24.3%, 12.8%, p = 0.006). Comparison of patient outcomes according to both induction and maintenance therapy showed the best results in patients who received high-dose CYC and continued MMF as maintenance therapy. CONCLUSION High- and low-dose CYC are comparable in early phases of treatment. However, after a longer duration of follow-up, high-dose CYC was associated with higher remission rates in the current cohort.
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Affiliation(s)
| | - Sherif M Gamal
- Rheumatology and Rehabilitation Department, Faculty of medicine, Cairo University Hospital, Cairo University, Al Kasr Al Aini, Old Cairo, Cairo Governorate, 4240310, Cairo, Egypt
| | - Ahmed Fayed
- Department of Internal Medicine, Nephrology Unit, Cairo University Hospital, Cairo, Egypt
| | | | - Shada A Ghoniem
- Rheumatology and Rehabilitation Department, Faculty of medicine, Cairo University Hospital, Cairo University, Al Kasr Al Aini, Old Cairo, Cairo Governorate, 4240310, Cairo, Egypt.
| | - Doaa A Teleb
- Rheumatology and Rehabilitation Department, Faculty of medicine, Cairo University Hospital, Cairo University, Al Kasr Al Aini, Old Cairo, Cairo Governorate, 4240310, Cairo, Egypt
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Dubowsky JG, Estevez JJ, Craig JE, Appukuttan B, Carr JM. Disease profiles in the Indigenous Australian population are suggestive of a common complement control haplotype. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2023:105453. [PMID: 37245779 DOI: 10.1016/j.meegid.2023.105453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 05/05/2023] [Accepted: 05/23/2023] [Indexed: 05/30/2023]
Abstract
Aboriginal and Torres Strait Islander People (respectfully referred to as Indigenous Australians herein) are disparately burdened by many infectious and chronic diseases relative to Australians with European genetic ancestry. Some of these diseases are described in other populations to be influenced by the inherited profile of complement genes. These include complement factor B, H, I and complement factor H-related (CFHR) genes that can contribute to a polygenic complotype. Here the focus is on the combined deletion of CFHR1 and 3 to form a common haplotype (CFHR3-1Δ). The prevalence of CFHR3-1Δ is high in people with Nigerian and African American genetic ancestry and correlates to a higher frequency and severity of systemic lupus erythematosus (SLE) but a lower prevalence of age-related macular degeneration (AMD) and IgA-nephropathy (IgAN). This pattern of disease is similarly observed among Indigenous Australian communities. Additionally, the CFHR3-1Δ complotype is also associated with increased susceptibility to infection with pathogens, such as Neisseria meningitidis and Streptococcus pyogenes, which also have high incidences in Indigenous Australian communities. The prevalence of these diseases, while likely influenced by social, political, environmental and biological factors, including variants in other components of the complement system, may also be suggestive of the CFHR3-1Δ haplotype in Indigenous Australians. These data highlight a need to define the Indigenous Australian complotypes, which may lead to the discovery of new risk factors for common diseases and progress towards precision medicines for treating complement-associated diseases in Indigenous and non-Indigenous populations. Herein, the disease profiles suggestive of a common complement CFHR3-1Δ control haplotype are examined.
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Affiliation(s)
- Joshua G Dubowsky
- Microbiology and Infectious Diseases, College of Medicine and Public Health, and Flinders Health and Medical Research Institute, Flinders University, Bedford Park, South Australia, Australia
| | - Jose J Estevez
- Wardliparingga Aboriginal Health Equity Theme, South Australia Health and Medical Research Institute, Adelaide, South Australia, Australia; Flinders Centre for Ophthalmology, Eye and Vision Research, Department of Ophthalmology, Flinders University, Bedford Park, South Australia, Australia; Caring Futures Institute, College of Nursing and Health Sciences, Optometry and Vision Science, Flinders University, Adelaide, Australia
| | - Jamie E Craig
- Flinders Centre for Ophthalmology, Eye and Vision Research, Department of Ophthalmology, Flinders University, Bedford Park, South Australia, Australia
| | - Binoy Appukuttan
- Molecular Medical Science, College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia
| | - Jillian M Carr
- Microbiology and Infectious Diseases, College of Medicine and Public Health, and Flinders Health and Medical Research Institute, Flinders University, Bedford Park, South Australia, Australia.
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Tanaka Y, O'Neill S, Li M, Tsai IC, Yang YW. Systemic Lupus Erythematosus: Targeted literature review of the epidemiology, current treatment and disease burden in the Asia Pacific region. Arthritis Care Res (Hoboken) 2020; 74:187-198. [PMID: 32841537 DOI: 10.1002/acr.24431] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 07/09/2020] [Accepted: 08/18/2020] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To understand the epidemiology, current treatment and disease burden of systemic lupus erythematosus (SLE) in the Asia Pacific region (APAC). METHODS A targeted literature review of published evidence on SLE in APAC was conducted, using the MEDLINE® database (2008-2018), conference proceedings and other supplementary sources. RESULTS The review identified 70 studies conducted in China (n=15), Japan (n=13), Taiwan (n=12), Korea (n=9), Australia (n=7), Hong Kong (n=6), Singapore (n=4), and multiple places within the APAC region (n=4). Incidence rates (per 100,000 per year) ranged from 0.9-8.4, while prevalence rates ranged from 3.7-127 (per 100,000); however, recent data was limited. Asian SLE patients were reported to have higher disease severity, activity (higher SLE disease activity index scores) and organ damage accrual; along with increased morbidity, mortality, and susceptibility to renal involvement compared with other ethnicities in APAC. The risk of developing SLE is higher in the Asian population. Routinely used SLE therapies included belimumab, hydroxychloroquine, cyclophosphamide, tacrolimus, azathioprine, mycophenolate mofetil, and corticosteroids; however, prescribing patterns varied across the region. Increased disease activity was associated with high economic burden and poor quality of life for SLE patients in APAC. CONCLUSION SLE remains a disease with a significant unmet medical need for an innovative therapy that is well-tolerated and effective for patients in APAC. Further evidence is required to better characterize the disease and fully capture the burden and impact of SLE in APAC. This review has highlighted where there is a paucity of data from patients across the APAC region.
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Affiliation(s)
- Yoshiya Tanaka
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Sean O'Neill
- Department of Rheumatology, Royal North Shore Hospital, Northern Clinical School, University of Sydney, St Leonards, New South Wales, Australia
| | - Mengtao Li
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, National Clinical Research Center for Immunologic Diseases, Ministry of Science & Technology, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - I-Ching Tsai
- Janssen: Pharmaceutical Companies of Johnson & Johnson, 11F, No.2, Sec.3, Minsheng East Rd, Taipei City, Taiwan
| | - Ya-Wen Yang
- Janssen Global Services, LLC, Horsham, PA, USA
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Protocol and establishment of a Queensland renal biopsy registry in Australia. BMC Nephrol 2020; 21:320. [PMID: 32738876 PMCID: PMC7395341 DOI: 10.1186/s12882-020-01983-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 07/27/2020] [Indexed: 12/15/2022] Open
Abstract
Background Renal biopsy is often required to obtain information for diagnosis, management and prognosis of kidney disease that can be broadly classified into acute kidney injury (AKI) and chronic kidney disease (CKD). The most common conditions identified on renal biopsy are glomerulonephritis and tubulo-interstitial disorders. There is a paucity of information on management strategies and therapeutic outcomes in AKI and CKD patients. A renal biopsy registry will provide information on biopsy-proven kidney disorders to improve disease understanding and tracking, healthcare planning, patient care and outcomes. Methods A registry of patients, that includes biopsy-proven kidney disease, was established through the collaboration of nephrologists from Queensland Hospital and Health Services and pathologists from Pathology Queensland services. The registry is in keeping with directions of the Advancing Kidney Care 2026 Collaborative, established in September 2018 as a Queensland Health initiative. Phase 1 of the registry entailed retrospective acquisition of data from all adult native kidney biopsies performed in Queensland, Australia, from 2002 to 2018. Data were also linked with the existing CKD.QLD patient registry. From 2019 onwards, phase 2 of the registry involves prospective collection of all incident consenting patients referred to Queensland public hospitals and having a renal biopsy. Annual reports on patient outcomes will be generated and disseminated. Discussion Establishment of the Queensland Renal Biopsy Registry (QRBR) aims to provide a profile of patients with biopsy-proven kidney disease that will lead to better understanding of clinico-pathological association and facilitate future research. It is expected to improve patient care and outcomes.
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Nigam A, Baer R, Green S, Neuen BL, Vile A, Mantha M. Lupus nephritis in Indigenous Australians: a single-centre study. Intern Med J 2020; 50:830-837. [PMID: 31760686 DOI: 10.1111/imj.14710] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 11/18/2019] [Accepted: 11/18/2019] [Indexed: 02/05/2023]
Abstract
BACKGROUND The incidence, presentation and outcomes of lupus nephritis (LN) vary with geography, ethnicity, socioeconomic status and gender. There are relatively few data on LN in the non-Caucasian populations in Australia. AIMS To describe the clinical presentation, histological features, natural history, and outcomes of a historical cohort of Aboriginal and Torres Strait Islanders people in Far North Queensland with biopsy-proven LN. METHODS This is a retrospective observational study, and the study was conducted in Cairns and Hinterland Hospital and Health Service, Queensland, Australia. The study included Aboriginal and Torres Strait Islander patients with biopsy-proven LN treated between 1990 and 2013. The main outcome measures were renal replacement therapy and overall patient survival. RESULTS Aboriginal and Torres Strait Islander people represented a substantial proportion (n = 16/40, 40%) of all patients diagnosed with LN during the observation period. The frequency of nephrotic range proteinuria (n = 11/14, 78.5%), estimated glomerular filtration rate <60 mL/min/1.73 m2 (n = 6/14, 42.8%) and proliferative LN (n = 13/16, 81.25%) was high at the time of presentation. Despite use of multiple immunosuppressive agents, the overall rate of remission was poor (n = 4/14, 28.5%) and incidence of end-stage kidney disease (n = 4/14, 28.5%) and death (n = 5/16, 31.25%) was high. CONCLUSIONS The clinical presentation of LN in Aboriginal and Torres Strait Islanders in Far North Queensland is severe and the response to standard immunosuppressive therapy is unsatisfactory. Larger prospective multi-centre studies are required to better understand ethnic disparities in prognosis and response to immunosuppressive therapy in this specific population.
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Affiliation(s)
- Amit Nigam
- Department of Nephrology, Cairns Hospital, Cairns, Queensland, Australia.,College of Medicine and Dentistry, James Cook University, Townsville, Queensland, Australia
| | - Richard Baer
- Department of Nephrology, Cairns Hospital, Cairns, Queensland, Australia
| | - Stella Green
- Department of Nephrology, Cairns Hospital, Cairns, Queensland, Australia
| | - Brendon L Neuen
- Department of Nephrology, Cairns Hospital, Cairns, Queensland, Australia
| | - Alexander Vile
- College of Medicine and Dentistry, James Cook University, Townsville, Queensland, Australia
| | - Murty Mantha
- Department of Nephrology, Cairns Hospital, Cairns, Queensland, Australia
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Yo JH, Barbour TD, Nicholls K. Management of refractory lupus nephritis: challenges and solutions. Open Access Rheumatol 2019; 11:179-188. [PMID: 31372070 PMCID: PMC6636187 DOI: 10.2147/oarrr.s166303] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 05/13/2019] [Indexed: 12/15/2022] Open
Abstract
Refractory lupus nephritis, broadly defined as failure to attain clinical remission after appropriate induction immunosuppressive therapy, is associated with an increased risk of progression to end-stage kidney disease and mortality. This is a challenging issue in clinical practice, as modern induction therapy despite proven efficacy can still be associated with treatment failure. Moreover, newer therapies have failed in recent years to displace or even match existing protocols for effective induction of remission. Refractory disease is generally assessed on the basis of clinical parameters, which may be unreliable, and renal biopsy, which is often not performed in a standard or timely fashion. Persisting histological inflammation in 30%–50% of patients who have attained clinical remission highlights the disparity between clinical and immunological response to therapy. The lack of an international consensus regarding what constitutes refractory lupus nephritis compounds clinician indecision regarding optimal management for these patients. Moreover, non-adherence to prescribed therapy versus primary treatment failure can be challenging to discriminate, and the time point at which non-response becomes treatment failure is unclear. In this review, we assess the key published evidence for the treatment of refractory lupus nephritis and provide practical recommendations based around the use of adjunctive therapies. These agents include rituximab and calcineurin inhibitors, with evidence consisting largely of observational or uncontrolled studies, as well as some of the biologic therapies currently under investigation through prospective clinical trials. The poor prognosis of refractory lupus nephritis demands regular review of patient response and the flexibility to switch or augment therapy.
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Affiliation(s)
- J H Yo
- Department of Nephrology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - T D Barbour
- Department of Nephrology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - K Nicholls
- Department of Nephrology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
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Characteristics and Histological Types of Lupus Nephritis in a Jordanian Tertiary Medical Center. BIOMED RESEARCH INTERNATIONAL 2019; 2019:7087461. [PMID: 31019971 PMCID: PMC6452530 DOI: 10.1155/2019/7087461] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 02/17/2019] [Accepted: 03/11/2019] [Indexed: 01/01/2023]
Abstract
Objectives Few reports of lupus nephritis (LN) from Jordan and the Middle East exist. This study assessed the demographic, clinical, and basic laboratory characteristics of Jordanian patients with LN and correlations with the histological class of LN. Methods This was a retrospective study of all patients who underwent kidney biopsy between 2007 and 2018 at a tertiary medical center in Jordan. Patients' demographic, clinical, laboratory, and pathological data were reviewed. Results In total, 79 patients were included in this study [mean age, 29.95 ± 12.16 years; 11 men (13.9%), 68 women (86.1%)]. Asymptomatic proteinuria and hematuria were the most common presentations in LN patients at biopsy (59.5%). The study revealed a significant difference in frequency of nephritic syndrome (p= 0.01) between sexes (10.3% female vs. 45.5% male). Class IV was the most common pathological class of LN [37 (46.8%)], followed by class V [15 (19%)] and class III [10 (12.7%)]. Post hoc analysis of the associations between laboratory values and histopathological patterns revealed a significant correlation between class IV lupus and renal failure (p= 0.018) and class IV lupus and anti-DNA antibodies p= 0.030). End-stage renal disease (ESRD) occurred in 25% of lupus nephritis cases. There was an increased likelihood of ESRD among men than women (45% vs. 22%). Overall mortality was 10%. Conclusion Although some clinical and laboratory findings correlate with histological types of LN, clinical and laboratory parameters of Jordanian patients with LN are not predictive of the histological type, although differences with regional studies were noted.
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Silva-Fernández L, Otón T, Askanase A, Carreira P, López-Longo FJ, Olivé A, Rúa-Figueroa Í, Narváez J, Ruiz-Lucea E, Andrés M, Calvo E, Toyos F, Alegre-Sancho JJ, Tomero E, Montilla C, Zea A, Uriarte E, Calvo-Alén J, Marras C, Martínez-Taboada VM, Belmonte-López MÁ, Rosas J, Raya E, Bonilla G, Freire M, Pego-Reigosa JM, Millán I, Hughes-Morley A, Andreu JL. Pure Membranous Lupus Nephritis: Description of a Cohort of 150 Patients and Review of the Literature. ACTA ACUST UNITED AC 2019; 15:34-42. [DOI: 10.1016/j.reuma.2017.04.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 03/22/2017] [Accepted: 04/13/2017] [Indexed: 12/13/2022]
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Nossent J, Raymond W, Kang A, Wong D, Ognjenovic M, Chakera A. The current role for clinical and renal histological findings as predictor for outcome in Australian patients with lupus nephritis. Lupus 2018; 27:1838-1846. [PMID: 30092734 DOI: 10.1177/0961203318792361] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Objectives To investigate the current demographic, clinical and histological characteristics of patients with lupus nephritis (LN) in Western Australia (WA) with regards to their predictive value for patient and renal outcome. Methods Retrospective study of adult systemic lupus erythematosus (SLE) patients with a first renal biopsy demonstrating LN between 1997 and 2017 at a metropolitan tertiary hospital in WA. Clinical data were collected at baseline and last follow-up with renal biopsy findings classified by International Society of Nephrology (ISN) criteria. Annual incidence rates (AIRs)/100,000, Kaplan-Meyer curves and Cox regression hazard ratio for independent predictors for patient and renal survival were applied. Results The AIR was 3.3, 3.1 and 0.4 for Asian ( n = 29), Indigenous Australian (IA) ( n = 11) and Caucasian ( n = 43) patients, respectively ( p < 0.01). There was no significant subgroup difference regarding ISN class (proliferative 66%, membranous 19%, mesangial 15%), levels of proteinuria (median PCR 300 mg/mmol) or frequency of raised creatinine (31%), anti-dsDNA antibody (89%) or hypocomplementaemia (88%). Treatment included corticosteroids (91%), cyclophosphamide (30%), mycophenolate (67%) and antihypertensive drugs (67%). Five- (81%) and 10-year (70%) survival was lower for IAs than for Caucasians and Asians (95% each at both time points) ( p = 0.016). Five- and 10-year renal survival (endpoint renal replacement therapy (RRT)) was 86% and 64% for IA vs 100% for Asian, 100% and 96% for Caucasian patients ( p = 0.02). IA background was the only independent predictor for poor patient survival and together with male gender also for renal survival. Only 25% of all patients remained free of any organ damage with non-renal damage observed in 53% of survivors. Conclusions LN incidence in WA was 0.75/100,000 with the lowest rate observed in Caucasians. While Asian patients have the same favourable outlook as Caucasians, the outcome is much bleaker for IA patients. Other clinical and histological findings did not predict outcomes, and importantly more than half of all surviving patients accrued non-renal damage.
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Affiliation(s)
- J Nossent
- 1 School of Medicine, Faculty of Health Science, University of Western Australia, Perth, Australia.,4 Department of Rheumatology, Sir Charles Gairdner Hospital, Perth, Australia
| | - W Raymond
- 1 School of Medicine, Faculty of Health Science, University of Western Australia, Perth, Australia
| | - A Kang
- 2 Path West Laboratory Medicine, Anatomical Pathology, QEII Medical Centre, Perth, Australia
| | - D Wong
- 2 Path West Laboratory Medicine, Anatomical Pathology, QEII Medical Centre, Perth, Australia
| | - M Ognjenovic
- 1 School of Medicine, Faculty of Health Science, University of Western Australia, Perth, Australia
| | - A Chakera
- 1 School of Medicine, Faculty of Health Science, University of Western Australia, Perth, Australia.,3 Department of Renal Medicine, Sir Charles Gairdner Hospital, Perth, Australia
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Rastin M, Mahmoudi M, Sahebari M, Tabasi N. Clinical & immunological characteristics in systemic lupus erythematosus patients. Indian J Med Res 2018; 146:224-229. [PMID: 29265023 PMCID: PMC5761032 DOI: 10.4103/ijmr.ijmr_1356_15] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Background & objectives: Systemic lupus erythematosus (SLE) is a chronic autoimmune disease which affects females more than males. Gender affects the manifestations of SLE and men with lupus show more severe symptoms and worse prognosis. This study was aimed to compare clinical and immunological features in female and male lupus patients in Iran. Methods: Demographic, clinical and laboratory data from 78 women and 20 men with lupus were collected. Autoantibodies (against nRNP, Sm, SSA, SSB, Ro-52, CENP, Jo-1, Scl-70, nucleosome, anti-dsDNA, histone and Rib-p protein) were determined using immunoblotting technique. Results: Men with lupus had less anti-SSA (21.1 vs 48.1%) and anti-Ro52 (10.5 vs 44.3%) antibodies when compared to women and none of the male patients had anti-SSB antibodies. Kidney damage was more frequent in men (68.4% in men vs 36.7% in women). In men with kidney involvement, anti-dsDNA increased significantly (84.6 vs 20.0%) in comparison to males without nephritis. Anti-SSA (7.7 vs 50.0%) and anti-nRNP (0.0 vs 33.8%) on the other hand, decreased. Women with renal involvement had no anti-SSB antibodies. Interpretation & conclusions: In male patients, SLE appeared with more severe features, and kidney damage was more frequent in males. The frequency of some autoantibodies was different between females and males. In males with kidney damage anti-dsDNA increased significantly, while anti-SSA and anti-nRNP decreased. Anti-SSB was not detected in males and females with nephritis.
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Affiliation(s)
- Maryam Rastin
- Immunology Research Center, Faculty of Medicine, Buali Research Institute, Mashhad University of Medical Sciences Mashhad, Iran
| | - Mahmoud Mahmoudi
- Immunology Research Center, Faculty of Medicine, Buali Research Institute, Mashhad University of Medical Sciences Mashhad, Iran
| | - Maryam Sahebari
- Rheumatic Disease Research Center, Internal Medicine Department, Faculty of Medicine, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Nafiseh Tabasi
- Immunology Research Center, Faculty of Medicine, Buali Research Institute, Mashhad University of Medical Sciences Mashhad, Iran
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Zaman GS. Introduction and Physiology of Lupus. Lupus 2017. [DOI: 10.5772/intechopen.68635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Carter EE, Barr SG, Clarke AE. The global burden of SLE: prevalence, health disparities and socioeconomic impact. Nat Rev Rheumatol 2016; 12:605-20. [PMID: 27558659 DOI: 10.1038/nrrheum.2016.137] [Citation(s) in RCA: 262] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Systemic lupus erythematosus (SLE) is a multisystem autoimmune disease that can potentially lead to serious organ complications and even death. Its global burden - in terms of incidence and prevalence, differential impact on populations, economic costs and capacity to compromise health-related quality of life - remains incompletely understood. The reported worldwide incidence and prevalence of SLE vary considerably; this variation is probably attributable to a variety of factors, including ethnic and geographic differences in the populations being studied, the definition of SLE applied, and the methods of case identification. Despite the heterogeneous nature of the disease, distinct patterns of disease presentation, severity and course can often be related to differences in ethnicity, income level, education, health insurance status, level of social support and medication compliance, as well as environmental and occupational factors. Given the potential for the disease to cause such severe and widespread organ damage, not only are the attendant direct costs high, but these costs are sometimes exceeded by indirect costs owing to loss of economic productivity. As an intangible cost, patients with SLE are, not surprisingly, likely to endure considerably reduced health-related quality of life.
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Affiliation(s)
- Erin E Carter
- University of Calgary, Richmond Road Diagnostic and Treatment Centre, 1820 Richmond Road S.W., Calgary, Alberta T2T 5C7, Canada
| | - Susan G Barr
- University of Calgary, Richmond Road Diagnostic and Treatment Centre, 1820 Richmond Road S.W., Calgary, Alberta T2T 5C7, Canada
| | - Ann E Clarke
- University of Calgary, Health Research Innovation Centre, 3280 Hospital Drive N.W., Calgary, Alberta T2N 4N1, Canada
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Tesar V, Hruskova Z. Lupus Nephritis: A Different Disease in European Patients? KIDNEY DISEASES 2015; 1:110-8. [PMID: 27536671 DOI: 10.1159/000438844] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 07/17/2015] [Indexed: 01/21/2023]
Abstract
BACKGROUND Lupus nephritis (LN) is still associated with significant mortality and substantial risk of progression to end-stage renal failure. Its outcome is related to the class and severity of LN and response to treatment, and it is poorer in patients with renal relapses. Ethnicity has a relatively well-defined impact on the outcome of the patients and their response to treatment and must always be taken into consideration in treatment decisions. SUMMARY In this article, we provide a review of the impact of ethnicity on the prevalence of systemic lupus erythematosus (SLE), the proportion of patients with SLE developing LN, outcomes of SLE and LN and response of LN to treatment. In European patients, the prevalence of SLE and the proportion of SLE patients with LN are lower and the outcome of LN is better than in nonwhite populations. European patients may respond better to some modes of treatment [e.g. cyclophosphamide (CYC) or rituximab] and may be less frequently refractory to treatment compared to black patients with LN. Although these differences may be largely genetically driven, socioeconomic factors (poverty, education, insurance, access to health care and adherence to treatment) may also play a significant role in some disadvantaged patients. KEY MESSAGE Treatment of LN may be different in patients with different ethnicity. Less aggressive disease in European patients may better respond to less aggressive treatment. Treatment of LN in nonwhite patients may require newer (more effective) therapeutic approaches, but targeting negative socioeconomic factors might be even more effective. FACTS FROM EAST AND WEST (1) The prevalence of SLE is lower among Caucasians than other ethnicities. A higher prevalence is observed among Asians and African Americans, while the highest prevalence is found in Caribbean people. The prevalence of LN in Asian SLE patients is much higher than in Caucasians as well. However, the 10-year renal outcome and renal survival rate appear to be better in Asians. (2) Polymorphisms of genes involved in the immune response, such as Fcγ receptor, integrin alpha M, TNF superfamily 4, myotubularin-related protein 3 and many others, might be partly responsible for the differences in prevalence between the different ethnic groups. European ancestry was shown to be associated with a decrease in the risk of LN even after adjustment for genes most associated with renal disease. (3) Access to health care is a key determinant of disease progression, treatment outcome and the management of complications such as infections, particularly in South Asia, and might also explain disparities between clinical outcomes. (4) The efficacy of low-dose CYC combined with corticosteroids for induction treatment of LN was proved in European Caucasian patients. This treatment is also used in Asia, although no formal evaluation of efficacy and safety in comparison with other treatment regimens exists in this population. The efficacy of mycophenolate mofetil (MMF) is similar to that of CYC, and similar between Asians and Caucasians. MMF may be more effective than CYC in inducing response in high-risk populations such as African American or Hispanic patients. MMF might cause less infection-related events in Asians, but its high cost prevents broader usage at present. (5) For maintenance therapy, corticosteroid combined with azathioprine (AZA) or MMF is used worldwide, with a broadly similar efficacy of both treatments, although there are data suggesting that in high-risk populations (e.g. African Americans) MMF may be more effective in preventing renal flares. AZA is often preferred in Asia due to economic constraints and because of its safety in pregnancy. (6) Alternative therapies under investigation include rituximab, which might be more efficient in Caucasians, as well as belimumab. Recent Japanese and Chinese studies have indicated a potential benefit of tacrolimus as a substitute for or in addition to CYC or MMF (dual or triple immunosuppression). Mizoribine is used in Japan exclusively.
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Affiliation(s)
- Vladimir Tesar
- Department of Nephrology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Zdenka Hruskova
- Department of Nephrology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
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Wang Z, Wang Y, Zhu R, Tian X, Xu D, Wang Q, Wu C, Zhang S, Zhao J, Zhao Y, Li M, Zeng X. Long-term survival and death causes of systemic lupus erythematosus in China: a systemic review of observational studies. Medicine (Baltimore) 2015; 94:e794. [PMID: 25929930 PMCID: PMC4603034 DOI: 10.1097/md.0000000000000794] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 03/21/2015] [Accepted: 03/29/2015] [Indexed: 02/07/2023] Open
Abstract
Systemic lupus erythematosus (SLE) is a chronic autoimmune disease with an increased risk of death compared to general population. Although previous studies showed improvement in survival of SLE, the long-term prognosis has not been elaborated in China.This study aims to integrate the observational studies estimating current long-term survival of Chinese SLE patients and analyze the death-cause situation of SLE in China.The study is a systemic review of English and non-English articles using MEDLINE, EMBASE, CNKI, WANFANG, and SINOMED databases. Additional studies were found by consultation with clinical experts, browse of references in selected papers, and search of related textbooks. Our major search terms were SLE, follow-up, prognosis, survival, mortality, and China.We included cohort studies for survival analysis, and both cohort studies and case series for death-cause analysis in China.The extraction of the articles were done by 2 authors independently using predesigned charts, including characteristics of study, clinical data, analyzing data, and study quality indicators.All pooled analyses were conducted both for random-effects model and fixed-effects model. Funnel plots and Egger regression tests were applied to check potential publication bias. Heterogeneity was tested by sensitivity analysis. We identified 5 studies for survival analysis comprising 4469 Chinese patients with SLE (380 observed deaths). Thirty-six studies were suitable for death-cause analysis with 2179 observed deaths (derived from more than 20,000 Chinese patients with SLE). The overall pooled survival rates for SLE in China were 94% for 5-year survival rate and 89% for 10-year survival rate after disease onset from the year 1995 to 2013, which were similar with previous publications in Asia-Pacific area. The proportions of different causes of death showed infection (33.2%), renal involvement (18.7%), lupus encephalopathy (13.8%), and cardiovascular disease (11.5%) as the top 4 causes.The overall survival rates for Chinese patients with SLE resembled previous publications in Asia-Pacific area. But the death causes of SLE in China were of some differences indicating relatively higher proportion of infection and lupus encephalopathy and lower cardiovascular disease. Ethnicity and more aggressive treatment might have contributed to the difference in death composition.
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Affiliation(s)
- Ziqian Wang
- From the Department of Rheumatology (ZW, RZ, XT, DX, QW, CW, SZ, JZ, YZ, ML, XZ), Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, ; and Department of Epidemiology and Bio-statistics (YW), Institute of Basic Medical Sciences, China Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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15
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Connelly K, Morand EF, Hoi AY. Asian ethnicity in systemic lupus erythematosus: an Australian perspective. Intern Med J 2014; 43:618-24. [PMID: 23279565 DOI: 10.1111/imj.12070] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Accepted: 12/03/2012] [Indexed: 01/09/2023]
Abstract
Ethnic differences in both disease susceptibility and expression have been noted in systemic lupus erythematosus (SLE). This review focuses on the evidence of disparities between SLE patients of Asian and Caucasian descent, the two predominant ethnic groups affected by SLE in the Australian context. While epidemiological studies suggest higher rates of SLE among Asian patients, multi-ethnic cohort studies have allowed direct comparison of disease characteristics between different ethnic groups. Such studies suggest that Asians are affected by more severe SLE across several disease parameters, including increased renal involvement, autoantibody positivity, disease activity and damage accumulation. As delineation of these disparities becomes clearer, uncovering the biological basis of such differences poses a significant opportunity to progress understanding of SLE pathogenesis. Understanding ethnic variation in disease provides a platform for an individualised approach to risk assessment, monitoring and management of SLE.
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Affiliation(s)
- K Connelly
- Department of Medicine, Monash University, Australia
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16
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Vincent FB, Bourke P, Morand EF, Mackay F, Bossingham D. Focus on systemic lupus erythematosus in indigenous Australians: towards a better understanding of autoimmune diseases. Intern Med J 2013; 43:227-34. [PMID: 23176380 DOI: 10.1111/imj.12039] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2012] [Accepted: 10/18/2012] [Indexed: 11/28/2022]
Abstract
The incidence and prevalence of autoimmune diseases such as rheumatoid arthritis, primary Sjögren syndrome, scleroderma and systemic lupus erythematosus (SLE) varies with geography and ethnicity. For example, SLE is reported to be more common in populations such as African-Caribbeans and Indigenous Australians (IA). As well as socio-economic status, variation in severity of disease may also show ethnic variability. The initial presentation of SLE in IA, in the context of a unique genetic background and distinctive environmental influences, is often florid with a recurring spectrum of clinical phenotypes. These clinical observations suggest a unique pathway for autoimmunity pathogenesis in this population. For instance, the high prevalence of bacterial infections in IA, particularly group A streptococcus, may be a potential explanation not only for increased incidence and prevalence of SLE but also the commonly florid acute disease presentation and propensity for rapidly progressive end organ threatening disease. This article will review the state of research in autoimmune disease of IA, consider key findings related to autoimmune disease in this population and propose a model potentially to explain the involvement of innate immunity and chronic infection in autoimmune disease pathogenesis. Ultimately, understanding of SLE at this level could affect management and result in personalised and targeted therapies to improve the health status of IA as well as better understanding of SLE pathogenesis per se.
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Affiliation(s)
- F B Vincent
- Department of Immunology, Monash University, Central Clinical School, Alfred Medical Research and Education Precinct (AMREP), Melbourne, Victoria, Australia
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Furtado J, Isenberg DA. Reprint of: B cell elimination in systemic lupus erythematosus. Clin Immunol 2013; 148:344-58. [DOI: 10.1016/j.clim.2013.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Accepted: 11/15/2012] [Indexed: 11/28/2022]
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18
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Bozzolo EP, Ramirez GA, Bonavida G, Lanzani C, Scotti R, Dell’Antonio G, Baldissera E, Canti V, Manfredi AA, Rovere-Querini P, Sabbadini MG. Efficacy and toxicity of treatments for nephritis in a series of consecutive lupus patients. Autoimmunity 2013; 46:537-46. [DOI: 10.3109/08916934.2013.817560] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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19
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Mok CC, Kwok RCL, Yip PSF. Effect of Renal Disease on the Standardized Mortality Ratio and Life Expectancy of Patients With Systemic Lupus Erythematosus. ACTA ACUST UNITED AC 2013; 65:2154-60. [PMID: 23754671 DOI: 10.1002/art.38006] [Citation(s) in RCA: 164] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Accepted: 04/30/2013] [Indexed: 02/04/2023]
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20
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Yong JL, Killingsworth MC, Lai K. Renal biopsy pathology in a cohort of patients from southwest Sydney with clinically diagnosed systemic lupus erythematosus. Int J Nephrol Renovasc Dis 2013; 6:15-26. [PMID: 23431084 PMCID: PMC3575160 DOI: 10.2147/ijnrd.s34357] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
PURPOSE The pathological manifestations in the kidneys in systemic lupus erythematosus (SLE) are commonly known as lupus nephritis. We have studied the pathological changes in renal biopsies from 59 cases of clinically diagnosed SLE obtained over a 15-year period from a racially diverse population in the Sydney metropolitan area. Our aim was to see if there was any regional variation in the morphological changes. METHODS Renal biopsy changes were assessed by routine light, immunofluorescence, and electron microscopy. We used the modified 1974 World Health Organization classification of lupus nephritis to classify cases into six classes. Disease severity was assessed by age, sex, and across racial groups, including Caucasian, Asian, Middle Eastern, Mediterranean, Indian subcontinental, South American, and Pacific Islander. RESULTS Our analysis showed that cases of lupus nephritis contributed 5.4% of our total renal biopsies examined over a 15-year period. The overall incidence of biopsy-proven cases was 0.49 per 100,000 per year. The ages of our patients ranged from 10 to 79 years, with most below 50 years of age. A female to male ratio was determined to be 4.4:1. There was no relationship to ethnicity, nor was there a relationship between any of these parameters and the class or severity of disease. CONCLUSION Renal biopsy with multimodal morphological and immunohistochemical analysis remains the gold standard for diagnosis and determination of the level of disease in lupus nephritis. Based on this approach we have identified an incidence rate for southwest Sydney that is slightly higher but comparable to that found in a similar study from the United Kingdom. We also found that there was no relationship between sex, race, or age and severity of disease.
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Affiliation(s)
- Jim Lc Yong
- Department of Anatomical Pathology, Sydney South West Pathology Service, Sydney, New South Wales, Australia ; University of Western Sydney, School of Medicine, Sydney, New South Wales, Australia
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Furtado J, Isenberg DA. B cell elimination in systemic lupus erythematosus. Clin Immunol 2012; 146:90-103. [PMID: 23280492 DOI: 10.1016/j.clim.2012.11.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 11/12/2012] [Accepted: 11/15/2012] [Indexed: 10/27/2022]
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disorder with a worldwide distribution, potentially life-threatening with considerable morbidity. The elimination of pathogenic B cells has emerged as a rational therapeutic option. Many open label studies have reported encouraging results in which clinical and serological remission have invariably been described, often enabling the reduction of steroid and immunosuppressive treatment. However, the results from randomized controlled studies have been disappointing and several questions remain to be answered. In this review we will focus on results of B cell direct depletion in the treatment of patients with systemic lupus erythematosus.
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Affiliation(s)
- João Furtado
- Department of Internal Medicine, Egas Moniz Hospital, Lisbon, Portugal.
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BAFF and innate immunity: new therapeutic targets for systemic lupus erythematosus. Immunol Cell Biol 2012; 90:293-303. [PMID: 22231653 DOI: 10.1038/icb.2011.111] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recently, the B cell has emerged as a cornerstone of systemic lupus erythematosus (SLE) pathogenesis. This has been highlighted by studies of the cytokine B-cell-activating factor of the tumour necrosis factor (TNF) family (BAFF), a crucial factor regulating B-cell maturation, survival and function. Overexpression of BAFF in mice leads to the development of an SLE-like disease, independent of T cells but instead relying on innate immunity mechanisms. Moreover, BAFF has been shown to be elevated in the serum of patients suffering from autoimmune conditions, especially SLE, and may correlate with disease activity. These findings challenge the previous notion that T:B-cell collaboration is the sole driver of SLE. In recent years, controlled trials have for the first time tested targeted therapeutics for SLE. However, agents designed to target B cells failed to meet primary endpoints in clinical trials in SLE, suggesting that a more complex role for B cells in SLE awaited elucidation. By contrast, on 9 March 2011, the US Food and Drug Administration approved belimumab, a fully human anti-BAFF monoclonal antibody, as a new B-cell-specific treatment for SLE. This article will review over 10 years of research on the BAFF system, key findings that led to this recent positive clinical outcome and propose a model potentially explaining why this B-cell-specific therapy has yielded positive results in clinical trials. We will also review promising therapies presently in clinical trials targeting innate immunity, which are likely to revolutionize SLE management towards a personalized and targeted therapy approach.
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