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https://www.readbyqxmd.com/read/28530841/the-increased-expression-of-toll-like-receptor-4-in-renal-and-skin-lesions-in-lupus-erythematosus
#1
Nesrine Elloumi, Raouia Fakhfakh, Lobna Ayadi, Khadija Sellami, Olfa Abida, Mariem Ben Jmaa, Tahya Sellami, Khawla Kammoun, Hatem Masmoudi
Toll-like receptor 4 (TLR-4), a bacterial lipopolysaccharide sensor, is an innate immunity essential modulator. It is expressed on both immune and non-immune cells and may contribute to the cutaneous and renal manifestations during lupus erythematosus (LE). Our purpose is to evaluate TLR-4 expression and analyzing its role in lupus nephritis (LN) and chronic cutaneous lupus erythematosus (CLE) pathogenesis. TLR-4 immunohistochemical staining was performed on 30 LN renal biopsies compared with 11 healthy renal tissues and 30 skin biopsies from CLE patients compared with 15 normal individuals...
May 1, 2017: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/28523301/large-variability-of-the-activity-and-chronicity-indexes-within-and-between-histological-classes-of-lupus-nephritis
#2
Tudor Azoicăi, Ioana Mădălina Belibou, Ludmila Lozneanu, Simona Eliza Giuşcă, Elena Cojocaru, Irina Draga Căruntu
Systemic lupus erythematosus (SLE) is characterized by a multifaceted pathogenesis and a heterogeneous clinical expression. The kidney involvement is almost unavoidable in all forms of SLE with chronic evolution, 75% of patients developing renal lesions defined as lupus nephritis (LN) - a glomerulonephritis with an extremely diverse lesion spectrum. The present study aimed to reevaluate a series of cases diagnosed as LN, focusing on the histological features in correlation with the level of activity and chronicity...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28492042/classifying-discoid-lupus-erythematosus-background-gaps-and-difficulties
#3
REVIEW
Jessica S Haber, Joseph F Merola, Victoria P Werth
To inform our ongoing efforts to develop defining features to be incorporated into a novel set of classification criteria for discoid lupus erythematosus (DLE), we conducted a literature review using the Ovid MEDLINE database. A search was performed to identify studies reporting criteria used to distinguish DLE from other cutaneous lupus erythematosus subtypes. We examined which clinical, histopathologic, and serologic features have data to support their use as effective features in distinguishing DLE from other potential disease mimickers and cutaneous lupus subsets...
March 2017: International Journal of Women's Dermatology
https://www.readbyqxmd.com/read/28478733/the-psychometric-properties-of-the-evaluation-of-daily-activity-questionnaire-in-seven-musculoskeletal-conditions
#4
Alison Hammond, Yeliz Prior, Mike Colin Horton, Alan Tennant, Sarah Tyson
PURPOSE: The purpose of this study is to psychometrically test the Evaluation of Daily Activity Questionnaire in seven musculoskeletal conditions. MATERIALS AND METHODS: One thousand and two hundred people with ankylosing spondylitis; osteoarthritis; systemic lupus erythematosus; systemic sclerosis; chronic pain; chronic upper limb disorders; or Primary Sjögren's syndrome completed the Evaluation of Daily Activity Questionnaire, Health Assessment Questionnaire and Short-Form Health Survey v2...
May 8, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28478696/inter-observer-variability-of-the-histological-classification-of-lupus-glomerulonephritis-in-children
#5
L Oni, M W Beresford, D Witte, A Chatzitolios, N Sebire, K Abulaban, R Shukla, J Ying, H I Brunner
The gold standard for the classification of lupus nephritis is renal histology but reporting variation exists. The aim of this study was to assess the inter-observer variability of the 2003 International Society of Nephrology/Royal Pathology Society (ISN/RPS) lupus nephritis histological classification criteria in children. Histopathologists from a reference centre and three tertiary paediatric centres independently reviewed digitalized renal histology slides from 55 children with lupus nephritis. Histological ISN/RPS Class was assigned and features scored; lupus nephritis-activity [scored 0-24], lupus nephritis-chronicity [0-12] and tubulointerstitial activity [0-21]...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28473317/clinical-and-histopathologic-characteristics-associated-with-renal-outcomes-in-lupus-nephritis
#6
Emilie C Rijnink, Y K Onno Teng, Suzanne Wilhelmus, Mathilde Almekinders, Ron Wolterbeek, Karlien Cransberg, Jan A Bruijn, Ingeborg M Bajema
BACKGROUND AND OBJECTIVES: The prognostic significance of histopathologic (sub)classes in the current classification of lupus nephritis (LN) is controversial. We analyzed clinical and histopathologic predictors of renal outcome in LN outside the framework of the classification. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Variables (50 histopathologic and ten clinical) were tested in mixed, linear, and Cox regression models for their association with renal flare, ESRD, and eGFR during follow-up (1, 5, and 10 years) in 105 patients with LN who underwent biopsy from 1987 to 2011...
May 8, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28472610/nature-functions-and-clinical-implications-of-igg4-autoantibodies-in-systemic-lupus-erythematosus-and-rheumatoid-arthritis
#7
Qingjun Pan, Qiaofen Lan, Yanxia Peng, Jun Cai, Jian Zheng, Carol Dickerson, Haiyan Xiao, Hua-Feng Liu
Protective autoantibodies in homeostasis, clinical relevance, and therapeutic potential have gained wide attention. Recent studies showed that IgG4 autoantibodies play crucial roles in systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA). In one aspect, IgG4 autoantibodies can bind autoantigens in competition with other classes of immunoglobulins (e.g., IgG1, IgG2a) to form non-inflammatory immune-complexes (ICs), which have a limited ability to induce immune responses because of the low affinity of IgG4 for both Fc receptors and the C1 complement molecule, resulting in reduced inflammatory response in SLE and RA...
March 2017: Discovery Medicine
https://www.readbyqxmd.com/read/28468970/concomitant-disruption-of-cd4-and-cd8-genes-facilitates-the-development-of-double-negative-%C3%AE-%C3%AE-tcr-peripheral-t-cells-that-respond-robustly-to-staphylococcal-superantigen
#8
Vaidehi R Chowdhary, Ashton Krogman, Ashenafi Y Tilahun, Mariam P Alexander, Chella S David, Govindarajan Rajagopalan
Mature peripheral double negative T (DNT) cells expressing αβ TCR but lacking CD4/CD8 coreceptors play protective as well as pathogenic roles. To better understand their development and functioning in vivo, we concomitantly inactivated CD4 and CD8 genes in mice with intact MHC class I and class II molecules with the hypothesis that this would enable the development of DNT cells. We also envisaged that these DNT cells could be activated by bacterial superantigens in vivo as activation of T cells by superantigens does not require CD4 and CD8 coreceptors...
May 3, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28463080/lupus-glomerulonephritis-in-788-chinese-children-a-multi-centre-clinical-and-histopathological-analysis-based-on-549-renal-biopsies
#9
Si-Yan Jin, Dan-Lin Huang, Xi-Qiang Dang, Zhu-Wen Yi
BACKGROUND: System lupus erythematosus (SLE) is a severe multisystem autoimmune disease. OBJECTIVE: To describe the clinical and pathological features, treatment, and renal outcome in children under 18 years with lupus nephritis (LN). METHODS: The study was undertaken by a questionnaire completed in 26 Grade 3A hospitals' paediatric renal units in China. The study comprised 788 children (619 girls, 169 boys) diagnosed with SLE by the American College of Rheumatology criteria (1997) during 2005-2010...
May 2, 2017: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/28444337/utility-of-a-repeat-renal-biopsy-in-lupus-nephritis-a-single-centre-experience
#10
Angela Pakozdi, Debasish Pyne, Michael Sheaff, Ravindra Rajakariar
Background.: The role of repeat renal biopsy in lupus nephritis (LN) to guide treatment or predict prognosis has been controversial. We assessed glomerular and tubulointerstitial histological characteristics of serial renal biopsies, correlations with clinical variables and the impact on subsequent management. Methods.: Out of a large single-centre cohort of 270 biopsy- proven LN patients, 66 (24%) had serial biopsies. LN classes based on glomerular pathology were defined according to the International Society of Nephrology/Renal Pathology Society 2003 classification, while tubulointerstitial pathologies were evaluated using the revised Austin's semi-quantitative scoring system...
April 22, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28437782/detection-of-renal-hypoxia-in-lupus-nephritis-using-blood-oxygen-level-dependent-mr-imaging-a-multiple-correspondence-analysis
#11
Huilan Shi, Tiekun Yan, Dong Li, Junya Jia, Wenya Shang, Li Wei, Zhenfeng Zheng
BACKGROUND/AIMS: Nephrologists have pursued ideal, dynamic and noninvasive methods for assessing renal function and disease progression. Blood oxygen level dependent (BOLD) imaging is a useful technique for assessing renal disease. This current study was performed to explore the correlation between the hypoxia iconographical index and renal pathological features in lupus nephritis. METHODS: Adult patients with lupus nephritis (LN) and healthy volunteers were recruited for this study...
2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/28420058/clinico-pathological-features-of-repeat-renal-biopsies-in-patients-with-lupus-nephritis-at-groote-schuur-hospital-cape-town
#12
S Kajawo, F C J Botha, I G Okpechi
Background Repeat renal biopsies in patients with lupus nephritis are usually done to guide treatment or to establish disease chronicity. Their value is not clear from available literature. There are also no available data in Africa to guide clinicians. Methods This was a retrospective study of patients undergoing a repeat renal biopsy between January 2003 and December 2014 from a single centre in Cape Town, South Africa. Relevant demographic, clinical and histological records of patients with repeat renal biopsies were documented...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28420052/lupus-nephritis-in-the-western-cape-a-high-prevalence-area-an-experience-over-three-decades
#13
U Brijlal, W D Bates, M R Moosa
Background Systemic lupus erythematosus is a multisystem disease with serious complications, including lupus nephritis. Systemic lupus erythematosus is prevalent in the Western Cape, predominantly affecting women in the prime of their lives. Renal biopsy is an important tool for the management of the lupus patient with kidney disease, guiding treatment and assessing prognosis. Aims The aim of this study was to ascertain if there has been a change in the spectrum of renal pathology, patient characteristics and long-term outcomes in patients with lupus nephritis in our region over three decades...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28420048/pincer-nail-in-a-lupus-patient
#14
T H V Azevedo, C L S Neiva, R V Consoli, A C D Couto, A F M P Dias, E J R Souza
Pincer nail is a transverse overcurvature of the nail plate that may appear in association with a variable number of diseases. We present a case report of a 28-year-old woman with pincer nail deformity associated with systemic lupus erythematosus. A renal biopsy confirmed class V lupus nephritis and treatment had included systemic steroids and cyclophosphamide. After 6 months there was a marked improvement of nail deformities.
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28409327/heat-shock-proteins-and-kidney-disease-perspectives-of-hsp-therapy
#15
REVIEW
Natalia Chebotareva, Irina Bobkova, Evgeniy Shilov
Heat shock proteins (HSPs) mediate a diverse range of cellular functions, prominently including folding and regulatory processes of cellular repair. A major property of these remarkable proteins, dependent on intracellular or extracellular location, is their capacity for immunoregulation that optimizes immune activity while avoiding hyperactivated inflammation. In this review, recent investigations are described, which examine roles of HSPs in protection of kidney tissue from various traumatic influences and demonstrate their potential for clinical management of nephritic disease...
May 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/28407558/cd11b-regulates-antibody-class-switching-via-induction-of-aid
#16
Seohyun Park, Hyunsub Sim, Hye-In Kim, Daecheol Jeong, Guang Wu, Soo Young Cho, Young Seek Lee, Hyung-Joo Kwon, Keunwook Lee
The integrin CD11b, which is encoded by the integrin subunit alpha M (ITGAM), is primarily expressed on the surface of innate immune cells. Genetic variations in ITGAM are among the strongest risk factors for systemic lupus erythematosus, an autoimmune disease characterized by the presence of autoantibodies. However, the regulatory function of CD11b in the antibody responses remains unclear. Here, we report the induction of CD11b in activated B2 B cells and define its unexpected role in immunoglobulin heavy chain class switch recombination (CSR)...
April 10, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28403670/genetic-variants-in-fh-are-associated-with-renal-histopathologic-subtypes-of-lupus-nephritis-a-large-cohort-study-from-china
#17
M Tan, J-B Hao, H Chu, F-M Wang, D Song, L Zhu, F Yu, Y-Z Li, Y Song, M-H Zhao
Objective Genetic variants in FH (complement factor H) were reported to associate with susceptibility to systemic lupus erythematosus (SLE). This study proposed that the genetic defects of FH in the susceptibility and in the development of lupus nephritis might be different. Methods This study enrolled 334 lupus nephritis patients, 269 SLE patients without clinical renal involvement and 350 controls. Two-step genotyping was performed. First, all the exons of the FH gene were fully sequenced in 100 lupus nephritis patients and 100 healthy controls...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28396236/skin-inflammation-induced-by-lupus-serum-was-inhibited-in-il-1r-deficient-mice
#18
Xiaoyan Li, Xuanxuan Guo, Huicheng Liu, Gongming Gao, Guangqiong Xu, Xibin Fei, Xiang Fang, Wei Qiao, Guo-Min Deng
Skin inflammation induced by lupus serum is a useful tool to investigate the pathogenesis of lupus skin injury. IL-1 is a proinflammatory cytokine, and its role in lupus skin lesion is still unclear. We determined the role of IL-1 in lupus skin injury by using gene deficient mice. We found that skin inflammation induced by lupus serum was significantly reduced in IL-1R deficient mice and caspase-1 deficient mice. IL-1R deficiency did not affect the expression of FcγRI (CD64), FcγRII (CD32) and MHC class II (CD74) induced by lupus serum...
April 7, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28384208/comparison-of-renal-response-to-four-different-induction-therapies-in-japanese-patients-with-lupus-nephritis-class-iii-or-iv-a-single-centre-retrospective-study
#19
Hironari Hanaoka, Tomofumi Kiyokawa, Harunobu Iida, Kana Ishimori, Yukiko Takakuwa, Takahiro Okazaki, Hidehiro Yamada, Daisuke Ichikawa, Sayuri Shirai, Junki Koike, Shoichi Ozaki
The recent recommendations for the management of lupus nephritis suggest that racial background should be considered while choosing induction therapy. However, the responses to different induction regimens have been poorly studied in Japanese population. Here, we assessed the renal response to different induction therapies in Japanese patients with lupus nephritis class III or IV. The records of 64 patients with biopsy-proven lupus nephritis class III or IV were retrospectively evaluated according to therapy received: monthly intravenous cyclophosphamide (IVCY), the Euro-lupus nephritis trial (ELNT) protocol-IVCY, tacrolimus (TAC), or mycophenolate mofetil (MMF)...
2017: PloS One
https://www.readbyqxmd.com/read/28365190/-kikuchi-fujimoto-disease-mimicking-malignant-lymphoma-in-adolescents
#20
A Escudier, S Courbage, V Meignin, S Abbou, S Sauvion, M Houlier, A Galerne, J Gaudelus, L de Pontual, M Simonin
Kikuchi-Fujimoto disease, also known as histiocytic necrotizing lymphadenitis, is a rare cause of lymphadenopathy in children. This benign disease can mimic lymphoma and misleads doctors. It was first described in Asia, where it occurred especially in young women. Recent publications show that it can also affect teenagers and young adults in Caucasian populations. The pathophysiology remains unknown. Three hypotheses have been raised for this disease: the role of viruses (in particular HHV-8), genetic predisposition (two alleles in HLA class II genes were found more frequently in patients with Kikuchi disease), and an autoimmune cause because of the correlation with lupus erythematosus...
May 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
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