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Ivanova K, Zolovs M, Blennow K, Zetterberg H, Kurjāne N, Ķēniņa V. Polyneuropathy in systemic sclerosis: exploring the causes and biomarkers. Front Med (Lausanne) 2024; 11:1412706. [PMID: 39156689 PMCID: PMC11329926 DOI: 10.3389/fmed.2024.1412706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Accepted: 07/25/2024] [Indexed: 08/20/2024] Open
Abstract
Introduction Systemic sclerosis (SSc) is a rare autoimmune disease with multiple organ involvement; however, the contribution of the nervous system (NS) remains relatively understudied. There are no specific data on the role of the autoimmune response and inflammation in the development of peripheral nerve system (PNS) damage in SSc and markers to assess this damage have yet to be identified. Objectives The primary objective of this study was to define the autoimmune mechanisms that lead to neuropathy by identifying antibodies (Abs) that target certain component of the NS or are associated with SSc. The secondary objective was to identify markers of NS damage that correlate with the detection and progression of polyneuropathy (PNP). Methods This study included patients diagnosed with SSc who met ACR/EULAR 2013 classification criteria at two leading Latvian hospitals between January 2016 and December 2021. Patients underwent a nerve conduction study (NCS). The SSc-associated Abs, Abs against myelin-associated glycoprotein (MAG) and anti-ganglioside Abs (GM1, GM2, GD1a, GD1b and GQ1b) were analysed. Potential serum PNS biomarkers-neurofilament light chain (NfL), glial fibrillary acidic protein (GFAP), fibroblast growth factor 21 (FGF21) and growth/differentiation factor 15 (GDF15)-were measured. Results We recruited 103 Caucasian patients diagnosed with SSc. SSc-associated Abs did not differ significantly between patients with and without PNP (p > 0.05). Anti-MAG and anti-ganglioside Abs in patients with PNP did not present a significant increase above the reference range. NfL, GFAP and GDF15 were significantly elevated in the presence of PNP (p < 0.05), with a moderate to high effect size (r = 0.36-0.65). Our regression analysis revealed a strong association between the HAQ-DI score, older age, male gender and the risk of developing PNP. Conclusion The development of PNP in patients with SSc is most likely due to ageing, natural progression and the sequelae of the disease. Several serum biomarkers-NfL, GFAP and GDF15-could be used as relevant diagnostic biomarkers for PNP in patients with SSc. Future studies are warranted to validate the diagnostic efficacy of these biomarkers and to unravel the complex interplay of factors leading to PNP in patients with SSc.
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Affiliation(s)
- Kristīne Ivanova
- Department of Doctoral Studies, Rīga Stradinš University, Rīga, Latvia
- Department of Rheumatology, Pauls Stradiņš Clinical University Hospital, Rīga, Latvia
| | - Maksims Zolovs
- Statistics Unit, Rīga Stradinš University, Rīga, Latvia
- Institute of Life Sciences and Technology, Daugavpils University, Daugavpils, Latvia
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
- Paris Brain Institute, ICM, Pitié-Salpêtrière Hospital, Sorbonne University, Paris, France
- Neurodegenerative Disorder Research Center, Division of Life Sciences and Medicine, and Department of Neurology, Institute on Aging and Brain Disorders, University of Science and Technology of China and First Affiliated Hospital of USTC, Hefei, China
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
- Department of Neurodegenerative Disease, UCL Institute of Neurology, London, United Kingdom
- UK Dementia Research Institute at UCL, London, United Kingdom
- Hong Kong Center for Neurodegenerative Diseases, Clear Water Bay, Kowloon, Hong Kong SAR, China
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WI, United States
| | - Nataļja Kurjāne
- Department of Biology and Microbiology, Rīga Stradinš University, Rīga, Latvia
- Institute of Oncology and Molecular Genetics, Rīga Stradinš University, Rīga, Latvia
- Outpatient Department, Pauls Stradiņš Clinical University Hospital, Rīga, Latvia
| | - Viktorija Ķēniņa
- Department of Biology and Microbiology, Rīga Stradinš University, Rīga, Latvia
- Institute of Oncology and Molecular Genetics, Rīga Stradinš University, Rīga, Latvia
- Department of Neurology, Pauls Stradiņš Clinical University Hospital, Rīga, Latvia
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Wang M, Wang Z, Zhang S, Wu Y, Zhang L, Zhao J, Wang Q, Tian X, Li M, Zeng X. Progress in the Pathogenesis and Treatment of Neuropsychiatric Systemic Lupus Erythematosus. J Clin Med 2022; 11:4955. [PMID: 36078885 PMCID: PMC9456588 DOI: 10.3390/jcm11174955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/19/2022] [Accepted: 08/20/2022] [Indexed: 11/16/2022] Open
Abstract
Neuropsychiatric systemic lupus erythematosus (NPSLE) has a broad spectrum of subtypes with diverse severities and prognoses. Ischemic and inflammatory mechanisms, including autoantibodies and cytokine-mediated pathological processes, are key components of the pathogenesis of NPSLE. Additional brain-intrinsic elements (such as the brain barrier and resident microglia) are also important facilitators of NPSLE. An improving understanding of NPSLE may provide further options for managing this disease. The attenuation of neuropsychiatric disease in mouse models demonstrates the potential for novel targeted therapies. Conventional therapeutic algorithms include symptomatic, anti-thrombotic, and immunosuppressive agents that are only supported by observational cohort studies, therefore performing controlled clinical trials to guide further management is essential and urgent. In this review, we aimed to present the latest pathogenetic mechanisms of NPSLE and discuss the progress in its management.
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Affiliation(s)
| | | | - Shangzhu Zhang
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science and Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital (PUMCH), Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | | | | | | | | | | | - Mengtao Li
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science and Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital (PUMCH), Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
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Sialoglyco-Conjugate Abnormalities, IL-6 Trans-Signaling and Anti-Ganglioside Immune Response-Potential Interferences in Lupus Nephritis Pathogenesis. Diagnostics (Basel) 2021; 11:diagnostics11061129. [PMID: 34205600 PMCID: PMC8235272 DOI: 10.3390/diagnostics11061129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/16/2021] [Accepted: 06/17/2021] [Indexed: 12/15/2022] Open
Abstract
We have investigated glycoconjugates sialization profile, endogen synthesis rate of antiganglioside antibodies (AGA), IL-6 signaling pathways correlated with activity disease in systemic lupus erythematous (SLE) and lupus nephritis (LN). Material and methods. A case-control study was developed and included 109 patients with SLE with or without renal impairment, 32 patients with IgA nephropathy and 60 healthy volunteers, clinically and paraclinically monitored. The following parameters were evaluated in volunteers serum: total sialic acid (TSA), orosomucoids, lipid bound sialic acid (LSA), interleukin-6 (IL-6), soluble factors IL-6R, gp130, anti –GM1, -GM2, -GM3, -GD1a, -GD1b, -GT1b, -GQ1b antigangliosides antibodies of IgG and IgM type. Results. Experimental data analysis showed: increase in synthesis rhythm of sialoglyco-conjugated in SLE (TSA increased in SLE and LN compared to control), accelerated catabolism of LSA in LN (LSA/TSA ratio was higher in SLE and LN than in control group), overexpression of IL-6 mediated trans-signaling (sIL-6R/sgp 130 ratio was subunit in SLE and IgA nephropathy and superunit in LN), large AGA profile synthesis of IgM isotype (over 45.1% in SLE and over 20.7% in LN). Conclusions. Hypersialization, accelerated glycosphingolipids degradation, IL-6 trans-signaling amplify and AGA pattern could represent essential mechanisms in LN pathogenesis.
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Mercado C, Perez-Rueda M. An Atypical Case of Miller Fisher Syndrome with Multiple Autoimmunity. Neuroophthalmology 2021; 46:122-125. [DOI: 10.1080/01658107.2021.1916045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- Carolina Mercado
- Escuela Superior de Oftalmología, Instituto Barraquer de América, Grupo de Investigación “Escuela Barraquer”, Bogotá, Colombia
| | - Mario Perez-Rueda
- Escuela Superior de Oftalmología, Instituto Barraquer de América, Grupo de Investigación “Escuela Barraquer”, Bogotá, Colombia
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Savas B, Astarita G, Aureli M, Sahali D, Ollero M. Gangliosides in Podocyte Biology and Disease. Int J Mol Sci 2020; 21:E9645. [PMID: 33348903 PMCID: PMC7766259 DOI: 10.3390/ijms21249645] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/07/2020] [Accepted: 12/14/2020] [Indexed: 02/07/2023] Open
Abstract
Gangliosides constitute a subgroup of glycosphingolipids characterized by the presence of sialic acid residues in their structure. As constituents of cellular membranes, in particular of raft microdomains, they exert multiple functions, some of them capital in cell homeostasis. Their presence in cells is tightly regulated by a balanced expression and function of the enzymes responsible for their biosynthesis, ganglioside synthases, and their degradation, glycosidases. The dysregulation of their abundance results in rare and common diseases. In this review, we make a point on the relevance of gangliosides and some of their metabolic precursors, such as ceramides, in the function of podocytes, the main cellular component of the glomerular filtration barrier, as well as their implications in podocytopathies. The results presented in this review suggest the pertinence of clinical lipidomic studies targeting these metabolites.
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Affiliation(s)
- Berkan Savas
- INSERM, IMRB, Univ Paris Est Créteil, F-94010 Créteil, France; (B.S.); (D.S.)
| | - Giuseppe Astarita
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, 20007 Washington, DC, USA;
| | - Massimo Aureli
- Department of Medical Biotechnology and Translational Medicine, University of Milano, Milano Italy, 20090 Segrate (Milano), Italy;
| | - Dil Sahali
- INSERM, IMRB, Univ Paris Est Créteil, F-94010 Créteil, France; (B.S.); (D.S.)
- Service Néphrologie, AP-HP, Hôpital Henri Mondor, F-94010 Créteil, France
| | - Mario Ollero
- INSERM, IMRB, Univ Paris Est Créteil, F-94010 Créteil, France; (B.S.); (D.S.)
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6
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Harden OC, Hammad SM. Sphingolipids and Diagnosis, Prognosis, and Organ Damage in Systemic Lupus Erythematosus. Front Immunol 2020; 11:586737. [PMID: 33101319 PMCID: PMC7546393 DOI: 10.3389/fimmu.2020.586737] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 09/10/2020] [Indexed: 12/19/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is a chronic autoimmune disease that involves multiple organs and disproportionality affects females, especially African Americans from 15 to 44 years of age. SLE can lead to end organ damage including kidneys, lungs, cardiovascular and neuropsychiatric systems, with cardiovascular complications being the primary cause of death. Usually, SLE is diagnosed and its activity is assessed using the Systemic Lupus Erythematosus Disease Activity Index (SLEDAI), Systemic Lupus International Collaborating Clinics Damage Index (SLICC/ACR), and British Isles Lupus Assessment Group (BILAG) Scales, which unfortunately often occurs after a certain degree of systemic involvements, disease activity or organ damage already exists. There is certainly a need for the identification of early biomarkers to diagnose and assess disease activity as well as to evaluate disease prognosis and response to treatment earlier in the course of the disease. Here we review advancements made in the area of sphingolipidomics as a diagnostic/prognostic tool for SLE and its co-morbidities. We also discuss recent reports on differential sphingolipid metabolism and blood sphingolipid profiles in SLE-prone animal models as well as in diverse cohorts of SLE patients. In addition, we address targeting sphingolipids and their metabolism as a method of treating SLE and some of its complications. Although such treatments have already shown promise in preventing organ-specific pathology caused by SLE, further investigational studies and clinical trials are warranted.
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Affiliation(s)
- Olivia C Harden
- College of Medicine, Medical University of South Carolina, Charleston, SC, United States
| | - Samar M Hammad
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC, United States
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Hanly JG, Li Q, Su L, Urowitz MB, Gordon C, Bae SC, Romero-Diaz J, Sanchez-Guerrero J, Bernatsky S, Clarke AE, Wallace DJ, Isenberg DA, Rahman A, Merrill JT, Fortin PR, Gladman DD, Bruce IN, Petri M, Ginzler EM, Dooley MA, Steinsson K, Ramsey-Goldman R, Zoma AA, Manzi S, Nived O, Jonsen A, Khamashta MA, Alarcón GS, Svenungsson E, van Vollenhoven RF, Aranow C, Mackay M, Ruiz-Irastorza G, Ramos-Casals M, Lim SS, Inanc M, Kalunian KC, Jacobsen S, Peschken CA, Kamen DL, Askanase A, Theriault C, Farewell V. Peripheral Nervous System Disease in Systemic Lupus Erythematosus: Results From an International Inception Cohort Study. Arthritis Rheumatol 2020; 72:67-77. [PMID: 31390162 PMCID: PMC6935421 DOI: 10.1002/art.41070] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 08/01/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To determine the frequency, clinical characteristics, associations, and outcomes of different types of peripheral nervous system (PNS) disease in a multiethnic/multiracial, prospective inception cohort of systemic lupus erythematosus (SLE) patients. METHODS Patients were evaluated annually for 19 neuropsychiatric (NP) events including 7 types of PNS disease. SLE disease activity, organ damage, autoantibodies, and patient and physician assessment of outcome were measured. Time to event and linear regressions were used as appropriate. RESULTS Of 1,827 SLE patients, 88.8% were female, and 48.8% were white. The mean ± SD age was 35.1 ± 13.3 years, disease duration at enrollment was 5.6 ± 4.2 months, and follow-up was 7.6 ± 4.6 years. There were 161 PNS events in 139 (7.6%) of 1,827 patients. The predominant events were peripheral neuropathy (66 of 161 [41.0%]), mononeuropathy (44 of 161 [27.3%]), and cranial neuropathy (39 of 161 [24.2%]), and the majority were attributed to SLE. Multivariate Cox regressions suggested longer time to resolution in patients with a history of neuropathy, older age at SLE diagnosis, higher SLE Disease Activity Index 2000 scores, and for peripheral neuropathy versus other neuropathies. Neuropathy was associated with significantly lower Short Form 36 (SF-36) physical and mental component summary scores versus no NP events. According to physician assessment, the majority of neuropathies resolved or improved over time, which was associated with improvements in SF-36 summary scores for peripheral neuropathy and mononeuropathy. CONCLUSION PNS disease is an important component of total NPSLE and has a significant negative impact on health-related quality of life. The outcome is favorable for most patients, but our findings indicate that several factors are associated with longer time to resolution.
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Affiliation(s)
- John G Hanly
- Queen Elizabeth II Health Sciences Center and Dalhousie University, Halifax, Nova Scotia, Canada
| | - Qiuju Li
- University of Cambridge, Cambridge, UK
| | - Li Su
- University of Cambridge, Cambridge, UK
| | - Murray B Urowitz
- Toronto Western Hospital and University of Toronto, Toronto, Ontario, Canada
| | - Caroline Gordon
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Sang-Cheol Bae
- Hanyang University Hospital for Rheumatic Diseases, Seoul, Korea
| | | | | | | | - Ann E Clarke
- University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Daniel J Wallace
- Cedars-Sinai and University of California, Los Angeles School of Medicine
| | | | | | | | - Paul R Fortin
- CHU de Québec and Université Laval, Québec City, Québec, Canada
| | - Dafna D Gladman
- Toronto Western Hospital and University of Toronto, Toronto, Ontario, Canada
| | - Ian N Bruce
- Arthritis Research UK Epidemiology Unit, University of Manchester, NIHR Manchester Musculoskeletal Biomedical Research Centre, and Manchester University NHS Foundation Trust, Manchester, UK
| | - Michelle Petri
- Johns Hopkins University School of Medicine, Baltimore, Maryland
| | | | - M A Dooley
- University of North Carolina, Chapel Hill, North Carolina
| | | | | | | | - Susan Manzi
- Allegheny Health Network, Pittsburgh, Pennsylvania
| | | | | | - Munther A Khamashta
- St. Thomas' Hospital and King's College London School of Medicine, London, UK
| | | | | | | | - Cynthia Aranow
- Feinstein Institute for Medical Research, Manhasset, New York
| | - Meggan Mackay
- Feinstein Institute for Medical Research, Manhasset, New York
| | | | - Manuel Ramos-Casals
- Institut d'Investigacions Biomèdiques August Pi i Sunyer and Hospital Clínic de Barcelona, Barcelona, Spain
| | - S Sam Lim
- Emory University School of Medicine, Atlanta, Georgia
| | | | | | - Soren Jacobsen
- Rigshospitalet and Copenhagen University Hospital, Copenhagen, Denmark
| | | | | | | | - Chris Theriault
- Queen Elizabeth II Health Sciences Center and Dalhousie University, Halifax, Nova Scotia, Canada
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Pedroza-Díaz J, Chavarria TPL, Vahos CHM, Hernández Ramírez DF, Olivares-Martínez E, Vásquez G, Llorente L, Fragoso-Loyo H, Röthlisberger S, Ortiz Reyes BL. Proteomic Analysis of Cerebrospinal Fluid: A Search for Biomarkers of Neuropsychiatric Systemic Lupus Erythematosus. CURR PROTEOMICS 2019. [DOI: 10.2174/1570164615666180911125252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background:
Neuropsychiatric systemic lupus erythematosus or NPSLE, as its name suggests, refers to the neurological and psychiatric manifestations of Systemic Lupus Erythematosus (SLE). In clinical practice, it is often difficult to reach an accurate diagnosis, as this disease presents differently in different patients, and the available diagnostic tests are often not specific enough.
Objectives:
The aim of this study was to search for proteomic biomarkers in cerebrospinal fluid that could be proposed as diagnostic aids for this disease.
Methods:
The proteomic profile of cerebrospinal fluid samples of 19 patients with NPSLE, 12 patients with SLE and no neuropsychiatric manifestation (SLEnoNP), 6 patients with neuropsychiatric symptoms but no SLE (NPnoSLE), 5 with Other Autoimmune Disorders without neuropsychiatric manifestations (OADs), and 4 Healthy Controls (HC), were obtained by two-dimensional gel electrophoresis and compared using ImageMaster Platinum 7.0 software.
Results:
The comparative analysis of the different study groups revealed three proteins of interest that were consistently over-expressed in NPSLE patients. These were identified by mass spectrometry as albumin (spot 16), haptoglobin (spot 160), and beta-2 microglobulin (spot 161).
Conclusion:
This work is one of the few proteomic studies of NPSLE that uses cerebrospinal fluid as the biological sample. Albumin has previously been proposed as a potential biomarker of rheumatoid arthritis and SLE, which is coherent with these results; but this is the first report of haptoglobin and beta-2 microglobulin in NPSLE, although haptoglobin has been associated with increased antibody production and beta-2 microglobulin with lupus nephritis.
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Affiliation(s)
- Johanna Pedroza-Díaz
- Instituto Tecnologico Metropolitano-ITM-, Facultad de Ciencias Exactas y Aplicadas, Grupo de Investigacion e Innovacion Biomedica GI2B, Medellín, Colombia
| | - Tania Paola Luján Chavarria
- Universidad de Antioquia, Facultad de Medicina, Grupo de Inmunologia Celular e Inmunogenetica-GICIG-, Medellin, Colombia
| | - Carlos Horacio Muñoz Vahos
- Universidad de Antioquia, Facultad de Medicina, Grupo de Reumatologia Universidad de Antioquia - GRUA-, Medellín, Colombia
| | | | - Elizabeth Olivares-Martínez
- Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Department of Immunology & Rheumatology, Mexico DF, Mexico
| | - Gloria Vásquez
- Universidad de Antioquia, Facultad de Medicina, Grupo de Inmunologia Celular e Inmunogenetica-GICIG-, Medellin, Colombia
| | - Luis Llorente
- Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Department of Immunology & Rheumatology, Colombia
| | - Hilda Fragoso-Loyo
- Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Department of Immunology & Rheumatology, Mexico DF, Mexico
| | - Sarah Röthlisberger
- Instituto Tecnologico Metropolitano-ITM-, Facultad de Ciencias Exactas y Aplicadas, Grupo de Investigacion e Innovacion Biomedica GI2B, Medellín, Colombia
| | - Blanca Lucía Ortiz Reyes
- Universidad de Antioquia, Facultad de Medicina, Grupo de Inmunologia Celular e Inmunogenetica-GICIG-, Medellin, Colombia
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Tezcan ME, Kocer EB, Haznedaroglu S, Sonmez C, Mercan R, Yucel AA, Irkec C, Bitik B, Goker B. Primary Sjögren's syndrome is associated with significant cognitive dysfunction. Int J Rheum Dis 2016; 19:981-988. [PMID: 27455357 DOI: 10.1111/1756-185x.12912] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
AIM Cognitive dysfunction is a neurologic manifestation in primary Sjögren syndrome (PSS). On the other hand, several antibodies are related to cognitive dysfunction. The aim of this study is to assess the cognitive dysfunction of PSS patients via detailed neurologic tests. Moreover, its associations with antibodies were also evaluated. METHOD Twenty-eight female patients with PSS and 17 healthy controls comprised the study groups. Short-term memory, long-term memory, verbal learning, visual memory, visual spatial perception, attention, verbal frequency function, executive functions and information processing speed were evaluated with neurologic tests in both of the study groups. Furthermore, anti-N-methyl-D-aspartate (NMDA) type anti-glutamate-receptor antibody, anti-ribosomal-p and antiganglioside antibodies were assessed in the study groups. RESULTS The attention, data processing speed, verbal learning, short-term verbal memory and visuo-spatial perception performances were lower in the patients with PSS when compared to the healthy controls. The difference reached statistical significance in Paced Auditory Serial Addition Test (P < 0.01), Serial Digit Learning Test (P < 0.01), clock drawing (P = 0.03), Auditory Verbal Learning Test immediate verbal memory (P = 0.01) and Benton Judgement of Line Orientation Test (P = 0.03). Even if antiganglioside antibodies were more likely to be present in the PSS group when compared to the healthy controls, no relationship was found between its positivity and cognitive dysfunction. CONCLUSION Results of this study suggest that cognitive dysfunction is quite prevalent in PSS patients without being associated with studied antibodies.
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Affiliation(s)
- Mehmet Engin Tezcan
- Department of Rheumatology, Lutfi Kirdar Kartal Education and Training Hospital, Ankara, Turkey.
| | - Emine Belgin Kocer
- Department of Neurology, Gazi University School of Medicine, Ankara, Turkey
| | | | - Cemile Sonmez
- Public Health Institution of Turkey, Gazi University School of Medicine, Ankara, Turkey
| | - Ridvan Mercan
- Department of Rheumatology, Gazi University School of Medicine, Ankara, Turkey
| | - Aysegul Atak Yucel
- Department of Immunology, Gazi University School of Medicine, Ankara, Turkey
| | - Ceyla Irkec
- Department of Neurology, Gazi University School of Medicine, Ankara, Turkey
| | - Berivan Bitik
- Department of Rheumatology, Gazi University School of Medicine, Ankara, Turkey
| | - Berna Goker
- Department of Rheumatology, Gazi University School of Medicine, Ankara, Turkey
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The association between autoantibodies and peripheral neuropathy in lupus nephritis. BIOMED RESEARCH INTERNATIONAL 2014; 2014:524940. [PMID: 24864250 PMCID: PMC4017733 DOI: 10.1155/2014/524940] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Revised: 03/29/2014] [Accepted: 03/31/2014] [Indexed: 01/01/2023]
Abstract
Background and Aim. The sensitivity and specificity of biomarkers used for predicting peripheral neuropathy in patients with systemic lupus erythematosus (SLE) and nephritis (SLE-LN) remain unsatisfactory. This study aimed to determine the autoantibodies levels in SLE-LN patients with peripheral neuropathy. Methods. Data of 559 SLE-LN patients were collected retrospectively, including titers of autoantibodies, electrodiagnostic studies, and clinical manifestations. Results. The neurologic manifestations of the SLE-LN patients were diverse and nonspecific. The prevalence rate of peripheral polyneuropathy was 2.68%, of which about 73.33% was mixed sensory-motor polyneuropathy. Numbness and functional gastrointestinal problems were the most prevalent symptoms and these were noted in every subtype of peripheral neuropathy. Among all the serology markers, anti-Ro was significantly associated with neuropathy related to SLE (P = 0.009). Conclusion. Peripheral neuropathy among LN patients is rare and may be easily overlooked. This study demonstrated that positive anti-Ro antibody may imply neuropathy in LN patients. Thus, anti-Ro can be considered a biomarker that should be added to the panel of conventional autoantibodies in LN patients.
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Lee JW, Kang JH, Hong HJ, Ju SM, Lee KE, Wen L, Park DJ, Kim TJ, Park YW, Lee SS. A Case of Acute Inflammatory Demyelinating Polyradiculoneuropathy in a Patient with Systemic Lupus Erythematosus. JOURNAL OF RHEUMATIC DISEASES 2014. [DOI: 10.4078/jrd.2014.21.3.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Jeong-Won Lee
- Department of Rheumatology, Chonnam National University Medical School, Gwangju, Korea
| | - Ji-Hyoun Kang
- Department of Rheumatology, Chonnam National University Medical School, Gwangju, Korea
| | - Hyoung-Ju Hong
- Department of Rheumatology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Mi Ju
- Department of Rheumatology, Chonnam National University Medical School, Gwangju, Korea
| | - Kyung-Eun Lee
- Department of Rheumatology, Chonnam National University Medical School, Gwangju, Korea
| | - Lihui Wen
- Department of Rheumatology, Chonnam National University Medical School, Gwangju, Korea
| | - Dong-Jin Park
- Department of Rheumatology, Chonnam National University Medical School, Gwangju, Korea
| | - Tae-Jong Kim
- Department of Rheumatology, Chonnam National University Medical School, Gwangju, Korea
| | - Yong-Wook Park
- Department of Rheumatology, Chonnam National University Medical School, Gwangju, Korea
| | - Shin-Seok Lee
- Department of Rheumatology, Chonnam National University Medical School, Gwangju, Korea
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Hashemilar M, Barzegar M, Nikanfar M, Bonyadi MR, Goldust M, Ramouz A, Ebrahimi F. Evaluating the status of antiganglioside antibodies in children with Guillain-Barré syndrome. Neuroimmunomodulation 2014; 21:64-8. [PMID: 24280640 DOI: 10.1159/000355830] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Accepted: 09/02/2013] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Antiganglioside antibodies have been reported to play a role in the pathophysiology of Guillain-Barré syndrome (GBS). METHODS This case-control study was designed to evaluate the status of antiganglioside antibodies in children with GBS. The study included 50 patients suffering from GBS as the case group and 30 children as the control group. Clinical information such as demographic data and recent digestive or respiratory infection (within the last month) was collected for all patients, and paraclinical studies including cerebrospinal fluid examination and electrophysiology were conducted by a subspecialized physician. Anti-GM1, anti-GQ1 and anti-GD1a antibodies were measured with ELISA and the EUROLINE method. RESULTS The mean age of patients in the case and control groups was 5.3 ± 3.8 and 5.4 ± 3.4 years, respectively. With the EUROLINE method, the results obtained for anti-GM1 were significant (p = 0.007); however, the p values for anti-GQ1a and anti-GQ1b were not significant (0.051 vs. 0.94), while with ELISA, comparing all three antibodies in both the case and control groups showed statistically significant results, with a p < 0.05. CONCLUSION EUROLINE is a new method used to evaluate antibodies in immune system diseases, but it is not useful for all antibodies specific to GBS, as the analysis was significant with a p value of 0.007 for anti-GM2.
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Affiliation(s)
- Mazyar Hashemilar
- Department of Neurology, Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Stock AD, Wen J, Putterman C. Neuropsychiatric Lupus, the Blood Brain Barrier, and the TWEAK/Fn14 Pathway. Front Immunol 2013; 4:484. [PMID: 24400009 PMCID: PMC3872310 DOI: 10.3389/fimmu.2013.00484] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 12/10/2013] [Indexed: 11/13/2022] Open
Abstract
Patients with systemic lupus erythematosus (SLE) can experience acute neurological events such as seizures, cerebrovascular accidents, and delirium, psychiatric conditions including depression, anxiety, and psychosis, as well as memory loss and general cognitive decline. Neuropsychiatric SLE (NPSLE) occurs in between 30 and 40% of SLE patients, can constitute the initial patient presentation, and may occur outside the greater context of an SLE flare. Current efforts to elucidate the mechanistic underpinnings of NPSLE are focused on several different and potentially complementary pathways, including thrombosis, brain autoreactive antibodies, and complement deposition. Furthermore, significant effort is dedicated to understanding the contribution of neuroinflammation induced by TNF, IL-1, IL-6, and IFN-γ. More recent studies have pointed to a possible role for the TNF family ligand TWEAK in the pathogenesis of neuropsychiatric disease in human lupus patients, and in a murine model of this disease. The blood brain barrier (BBB) consists of tight junctions between endothelial cells (ECs) and astrocytic projections which regulate paracellular and transcellular flow into the central nervous system (CNS), respectively. Given the privileged environment of the CNS, an important question is whether and how the integrity of the BBB is compromised in NPSLE, and its potential pathogenic role. Evidence of BBB violation in NPSLE includes changes in the albumin quotient (Qalb) between plasma and cerebrospinal fluid, activation of brain ECs, and magnetic resonance imaging. This review summarizes the evidence implicating BBB damage as an important component in NPSLE development, occurring via damage to barrier integrity by environmental triggers such as infection and stress; cerebrovascular ischemia as result of a generally prothrombotic state; and immune mediated EC activation, mediated by antibodies and/or inflammatory cytokines. Additionally, new evidence supporting the role of TWEAK/Fn14 signaling in compromising the integrity of the BBB in lupus will be presented.
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Affiliation(s)
- Ariel D Stock
- Department of Microbiology and Immunology, Albert Einstein College of Medicine , Bronx, NY , USA
| | - Jing Wen
- Department of Microbiology and Immunology, Albert Einstein College of Medicine , Bronx, NY , USA
| | - Chaim Putterman
- Department of Microbiology and Immunology, Albert Einstein College of Medicine , Bronx, NY , USA ; Division of Rheumatology, Albert Einstein College of Medicine , Bronx, NY , USA
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