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https://www.readbyqxmd.com/read/28745692/-changes-in-the-complement-system-in-membranoproliferative-glomerulonephritis
#1
V A Yurova, L A Bobrova, N L Kozlovskaya, Yu V Korotchaeva, A G Serova, L V Kozlov, S S Andina, K A Demyanova, A M Kuchieva, S V Roshchupkina
AIM: To compare the clinical manifestations membranoproliferative glomerulonephritis (MPGN) in its idiopathic variant, lupus nephritis (LN), and C3 glomerulopathy (C3-GP), by comparing them with changes in the complement system. SUBJECTS AND METHODS: The clinic of nephrology followed up 42 patients with different types of MPGN in 2013 to 2015. The study included 35 patients divided into 3 groups: 1) 8 patients with C3-GP, 2) 13 with idiopathic MPGN; 3) 14 with Class IV LN...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28739130/ajkd-atlas-of-renal-pathology-focal-and-diffuse-lupus-nephritis-isn-rps-class-iii-and-iv
#2
Agnes B Fogo, Mark A Lusco, Behzad Najafian, Charles E Alpers
No abstract text is available yet for this article.
August 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28739129/ajkd-atlas-of-renal-pathology-minimal-mesangial-and-mesangial-proliferative-lupus-nephritis-isn-rps-class-i-and-ii
#3
Agnes B Fogo, Mark A Lusco, Behzad Najafian, Charles E Alpers
No abstract text is available yet for this article.
August 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28739128/ajkd-atlas-of-renal-pathology-membranous-lupus-nephritis-isn-rps-class-v
#4
Mark A Lusco, Agnes B Fogo, Behzad Najafian, Charles E Alpers
No abstract text is available yet for this article.
August 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28720048/mesangial-proliferative-lupus-nephritis-with-podocytopathy-a-special-entity-of-lupus-nephritis
#5
S F Wang, Y H Chen, D Q Chen, Z Z Liu, F Xu, C H Zeng, W X Hu
Mesangial proliferative lupus nephritis may coexist with podocytopathy, but its clinical-morphological features, treatment response and outcomes have not been compared with mesangial proliferative lupus nephritis without podocytopathy. In this study, 125 biopsies of lupus nephritis patients showing mesangial proliferation with mesangial immune deposits were collected and divided into podocytopathy group (defined as podocyte foot process effacement (FPE) >50% with nephrotic syndrome (NS)) and mesangial group (FPE ≤50%, or FPE >50% without NS)...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28707410/treatment-of-an-acquired-factor-xiii-inhibitor-in-an-adolescent-with-systemic-lupus-erythematosus-and-renal-failure
#6
Cara A Rabik, Meredith A Atkinson, Sangeeta Sule, John J Strouse
BACKGROUND: Factor (F)XIII deficiency is a rare inherited bleeding disorder, but can also be acquired due to the development of inhibitors. CASE REPORT: A 17-year-old female with systemic lupus erythematosus and end-stage kidney disease secondary to Class IV lupus nephritis developed spontaneous subcutaneous and muscular hematomas and delayed major bleeding after invasive procedures. She had abnormal kaolin thromboelastography (kTEG; decreased maximal amplitude, representative of clot strength) initially attributed to thrombocytopenia and uremic platelet dysfunction, but her FXIII activity was undetectable, and a high-titer antibody against FXIII was identified...
July 13, 2017: Transfusion
https://www.readbyqxmd.com/read/28706383/a-clinico-pathological-study-of-lupus-nephritis-based-on-the-international-society-of-nephrology-renal-pathology-society-2003-classification-system
#7
Suchitha Satish, Pallavi Deka, Manjunath Sanjeev Shetty
INTRODUCTION: Lupus nephritis (LN) is a major complication of systemic lupus erythematosus (SLE). Renal involvement is a major determinant of the prognosis of SLE. The histological classification of LN is a key factor in determining the renal survival of patients with LN. Prompt recognition and treatment of renal disease are important, as early response to therapy is correlated with better outcome and renal biopsy plays an important role in achieving this. OBJECTIVES: The objective of this study was to correlate the clinical and laboratory findings with histopathological classes of LN as per the 2003 International Society of Nephrology-Renal Pathology Society (ISN/RPS) classification system...
July 2017: Journal of Laboratory Physicians
https://www.readbyqxmd.com/read/28704581/from-childhood-to-adulthood-disease-activity-trajectories-in-childhood-onset-systemic-lupus-erythematosus
#8
Lily Siok Hoon Lim, Eleanor Pullenayegum, Brian M Feldman, Lillian Lim, Dafna D Gladman, Earl D Silverman
No previous study has studied the longitudinal disease course of childhood-onset SLE (cSLE). OBJECTIVES: 1) To assess distinguishable differences in disease activity trajectories in cSLE patients; 2) To determine baseline factors predictive of disease trajectory membership and 3) To assess if the different disease activity trajectories are associated with different damage trajectories. METHODS: This is a retrospective, longitudinal inception cohort of cSLE patients...
July 13, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28696256/a-novel-subset-of-anti-inflammatory-cd138-macrophages-is-deficient-in-mice-with-experimental-lupus
#9
Shuhong Han, Haoyang Zhuang, Stepan Shumyak, Jingfan Wu, Hui Li, Li-Jun Yang, Westley H Reeves
Dead cells accumulating in the tissues may contribute to chronic inflammation. We examined the cause of impaired apoptotic cell clearance in human and murine lupus. Dead cells accumulated in bone marrow from lupus patients but not from nonautoimmune patients undergoing myeloablation, where they were efficiently removed by macrophages (MΦ). Impaired apoptotic cell uptake by MΦ also was seen in mice treated i.p. with pristane (develop lupus) but not mineral oil (MO) (do not develop lupus). The inflammatory response to both pristane and MO rapidly depleted resident (Tim4(+)) large peritoneal MΦ...
July 10, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28692065/increased-cathepsin-s-in-prdm1-dendritic-cells-alters-the-tfh-cell-repertoire-and-contributes-to-lupus
#10
Sun Jung Kim, Sebastian Schätzle, S Sohail Ahmed, Wolfgang Haap, Su Hwa Jang, Peter K Gregersen, George Georgiou, Betty Diamond
Aberrant population expansion of follicular helper T cells (TFH cells) occurs in patients with lupus. An unanswered question is whether an altered repertoire of T cell antigen receptors (TCRs) is associated with such expansion. Here we found that the transcription factor Blimp-1 (encoded by Prdm1) repressed expression of the gene encoding cathepsin S (Ctss), a cysteine protease that cleaves invariant chains and produces antigenic peptides for loading onto major histocompatibility complex (MHC) class II molecules...
July 10, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28690029/high-levels-of-soluble-gpr56-adgrg1-are-associated-with-positive-rheumatoid-factor-and-elevated-tumor-necrosis-factor-in-patients-with-rheumatoid-arthritis
#11
Wen-Yi Tseng, Yeong-Jian Jan Wu, Tai-Yun Yang, Nien-Yi Chiang, Wen-Pin Tsai, Siamon Gordon, Gin-Wen Chang, Chang-Fu Kuo, Shue-Fen Luo, Hsi-Hsien Lin
BACKGROUND: GPR56/ADGRG1 is a member of the adhesion-class G protein-coupled receptor (aGPCR) family important in brain development, oncogenesis and tumor metastasis. Like other aGPCRs, GPR56 is cleaved at the GPCR proteolysis site (GPS) motif into an N-terminal fragment (NTF) and a C-terminal fragment (CTF). Existence of soluble GPR56 (sGPR56) has been shown in vitro, however the underlying mechanism and its pathophysiologic role remains undetermined. OBJECTIVE: To assess the presence of sGPR56 in human serum using ELISA assay and compare the serum sGPR56 levels among patients of various chronic inflammatory diseases and healthy subjects...
June 28, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28683778/unusual-acute-lupus-hemophagocytic-syndrome-a-test-of-diagnostic-criteria-a-case-report
#12
Wijetunga Mudalige Udai Akalanka Wijetunga, Ravindra Laxman Satarasinghe, Balasuriya Mudiyanselage Dayananda, Ganhewage Kokila Darshani
BACKGROUND: Hemophagocytic lymphohistiocytosis is an aggressive life-threatening syndrome of excessive immune activation. Hemophagocytic lymphohistiocytosis due to systemic lupus erythematosus is described as acute lupus hemophagocytic syndrome. Acute lupus hemophagocytic syndrome presenting with negative antinuclear antibody is uncommon. CASE PRESENTATION: A 57-year-old Sri Lankan woman presented with intermittent fever, weight loss, episodic confusion, and alopecia for 3 months...
July 7, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28683654/efficacy-and-safety-of-multitarget-therapy-with-cyclophosphamide-and-tacrolimus-for-lupus-nephritis-a-prospective-single-arm-single-centre-open-label-pilot-study-in-japan
#13
R Sakai, T Kurasawa, E Nishi, T Kondo, Y Okada, A Shibata, K Nishimura, K Chino, A Okuyama, H Takei, H Nagasawa, K Amano
Background Pulsed cyclophosphamide or mycophenolate mofetil for lupus nephritis has limited efficacy. We previously reported a case of mixed-class IV + V lupus nephritis successfully treated with cyclophosphamide and tacrolimus. This study assessed the efficacy and safety of multitarget therapy with cyclophosphamide and tacrolimus for the treatment of lupus nephritis. Methods In a prospective, single-arm, open label pilot study, we recruited 15 patients aged 18-64 years with active lupus nephritis who met the American College of Rheumatology criteria for a diagnosis of systemic lupus erythematosus (1997)...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28682905/rituximab-alone-as-induction-therapy-for-membranous-lupus-nephritis-a-multicenter-retrospective-study
#14
MULTICENTER STUDY
Nathalie Chavarot, David Verhelst, Agathe Pardon, Valérie Caudwell, Lucile Mercadal, Antoinette Sacchi, Catherine Leonardi, Véronique Le Guern, Alexandre Karras, Eric Daugas
The optimal treatment for pure membranous lupus nephritis (MLN) remains undetermined. Rituximab constitutes a promising therapeutic option for lupus nephritis and is currently being evaluated for use in idiopathic membranous nephritis. We retrospectively analysed the efficacy and tolerance of rituximab as a monotherapy in the induction treatment of pure MLN.We retrospectively investigated SLE patients with biopsy-proven pure class V lupus nephritis presenting with a protein-to-creatinine ratio of at least 2 g/g and treated with rituximab as monotherapy...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28668803/longterm-data-on-disease-flares-in-patients-with-proliferative-lupus-nephritis-in-recent-years
#15
Desmond Y H Yap, Colin Tang, Maggie K M Ma, Maggie M Y Mok, Gary C W Chan, Lorraine P Y Kwan, Tak Mao Chan
OBJECTIVE: To examine the disease flare rate in lupus nephritis (LN), focusing on renal flares, and the factors associated with relapse risk in recent years. METHODS: We analyzed data on 139 Chinese patients with class III/IV ± V LN diagnosed from January 1983 to December 2013. We also compared data before and after 1998, when maintenance immunosuppression was changed from azathioprine (AZA) to mycophenolic acid (MPA). RESULTS: Over 112.5 ± 88...
July 1, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28649578/anti-high-mobility-group-box-1-antibody-ameliorates-albuminuria-in-mrl-lpr-lupus-prone-mice
#16
Haruki Watanabe, Katsue S Watanabe, Keyue Liu, Sumie Hiramatsu, Sonia Zeggar, Eri Katsuyama, Noriko Tatebe, Akiya Akahoshi, Fumiaki Takenaka, Takahisa Hanada, Masaru Akehi, Takanori Sasaki, Ken-Ei Sada, Eiji Matsuura, Masahiro Nishibori, Jun Wada
We evaluated the efficacy of a neutralizing anti-high mobility group box 1 (HMGB1) monoclonal antibody in MRL/lpr lupus-prone mice. The anti-HMGB1 monoclonal antibody (5 mg/kg weight) or class-matched control immunoglobulin G2a (IgG2a) was administered intravenously twice a week for 4-15 weeks. Urine albumin was monitored, and histological evaluation of the kidneys was conducted at 16 weeks. Lymphadenopathies were evaluated by 1-(2'-deoxy-2'-[(18)F]fluoro-β-D-arabinofuranosyl)cytosine ([(18)F]FAC) positron emission tomography/computed tomography (PET/CT) at 12 weeks...
September 15, 2017: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/28626952/multivariate-binary-classification-of-imbalanced-datasets-a-case-study-based-on-high-dimensional-multiplex-autoimmune-assay-data
#17
Laura Schlieker, Anna Telaar, Angelika Lueking, Peter Schulz-Knappe, Carmen Theek, Katja Ickstadt
The classification of a population by a specific trait is a major task in medicine, for example when in a diagnostic setting groups of patients with specific diseases are identified, but also when in predictive medicine a group of patients is classified into specific disease severity classes that might profit from different treatments. When the sizes of those subgroups become small, for example in rare diseases, imbalances between the classes are more the rule than the exception and make statistical classification problematic when the error rate of the minority class is high...
June 19, 2017: Biometrical Journal. Biometrische Zeitschrift
https://www.readbyqxmd.com/read/28626519/discovery-of-potent-and-selective-tricyclic-inhibitors-of-bruton-s-tyrosine-kinase-with-improved-druglike-properties
#18
Xiaojing Wang, James Barbosa, Peter Blomgren, Meire C Bremer, Jacob Chen, James J Crawford, Wei Deng, Liming Dong, Charles Eigenbrot, Steve Gallion, Jonathon Hau, Huiyong Hu, Adam R Johnson, Arna Katewa, Jeffrey E Kropf, Seung H Lee, Lichuan Liu, Joseph W Lubach, Jen Macaluso, Pat Maciejewski, Scott A Mitchell, Daniel F Ortwine, Julie DiPaolo, Karin Reif, Heleen Scheerens, Aaron Schmitt, Harvey Wong, Jin-Ming Xiong, Jianjun Xu, Zhongdong Zhao, Fusheng Zhou, Kevin S Currie, Wendy B Young
In our continued effort to discover and develop best-in-class Bruton's tyrosine kinase (Btk) inhibitors for the treatment of B-cell lymphomas, rheumatoid arthritis, and systemic lupus erythematosus, we devised a series of novel tricyclic compounds that improved upon the druglike properties of our previous chemical matter. Compounds exemplified by G-744 are highly potent, selective for Btk, metabolically stable, well tolerated, and efficacious in an animal model of arthritis.
June 8, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28625079/retrospective-analysis-of-nephritis-response-and-renal-outcome-in-a-cohort-of-928-egyptian-lupus-nephritis-patients-a-university-hospital-experience
#19
M Momtaz, A Fayed, M Wadie, S M Gamal, S A Ghoniem, N Sobhy, N M Kamal Elden, W M Hamza
Aim We aim to describe the pattern of response to treatment in a cohort of Egyptian lupus nephritis (LN) patients and to define variable prognostic factors. Methods We retrospectively analyzed records of 928 systemic lupus erythematosus (SLE) patients (898 females, 30 males) with biopsy-confirmed LN seen between 2006 and 2012 at Cairo University hospitals. Results Our study involved 928 SLE patients with a mean age of 26.25 ± 6.487 years, mean LN duration at time of renal biopsy 6.48 ± 4.27 months, mean SLEDAI 28...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28614228/the-value-of-repeat-biopsy-in-lupus-nephritis-flares
#20
REVIEW
Javier Narváez, Milagros Ricse, Montserrat Gomà, Francesca Mitjavila, Xavier Fulladosa, Olga Capdevila, Joan Torras, Xavier Juanola, Ramón Pujol-Farriols, Joan Miquel Nolla
Whether a repeat renal biopsy is helpful during lupus nephritis (LN) flares remains debatable. In order to analyze the clinical utility of repeat renal biopsy in this complex situation, we retrospectively reviewed our series of 54 LN patients who had one or more repeat biopsies performed only on clinical indications. Additionally, we reviewed 686 well-documented similar cases previously reported (PubMed 1990-2015).The analysis of all patients reviewed showed that histological transformations are common during a LN flare, ranging from 40% to 76% of cases...
June 2017: Medicine (Baltimore)
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