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Ebaid AM, Zakaria MA, Mekkawy EM, Nageeb RS, Elfwakhry RM, Seleem DA, Shabana MA, Esawy MM. VPS13C and STING expression in neuropsychiatric systemic lupus erythematosus: unveiling an unbreached territory. Lupus Sci Med 2024; 11:e001271. [PMID: 39306342 PMCID: PMC11418578 DOI: 10.1136/lupus-2024-001271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Accepted: 07/28/2024] [Indexed: 09/25/2024]
Abstract
OBJECTIVES To measure the expression level of the vacuolar protein sorting 13 (VPS13) gene and stimulator of interferon genes (STING) in patients with SLE with and without reported neuropsychiatric symptoms to establish their possible role in the pathogenesis of neuropsychiatric SLE (NPSLE). METHODS This study included 100 subjects: 50 patients diagnosed with SLE and 50 age-matched and sex-matched healthy participants as the control group. The patients with SLE were further subdivided into NPSLE and non-NPSLE groups. All the subjects underwent rheumatological, neurological and psychological evaluation, MRI, VPS13C gene and STING expression assessment via quantitative real-time PCR. RESULTS Seventy-eight per cent of the SLE group were classified as non-NPSLE, and 22% were classified as NPSLE. Positive MRI results were found in 55% of the patients with NPSLE and 7.7% of the patients without NPSLE.VPS13C expression levels were decreased in the patients with SLE compared with the control (p<0.001), while STING expression levels showed higher levels in the patients in comparison with the control (p<0.001). Both markers showed significant differences between the MRI-positive and MRI-negative groups.At a cut-off value of 0.225 for the VPS13C assessment and a cut-off value of 3.15 for STING expression, both markers were able to distinguish patients with NPSLE from those who were non-NPSLE; however, VPS13C performed better. CONCLUSION The VPS13C expression levels were decreased in patients with NPSLE compared with patients without NPSLE, while STING expression levels showed higher levels in NPSLE. Both were associated with the MRI findings. To distinguish patients with NPSLE from those without it, the VPS13C assessment performed better.
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Affiliation(s)
- Amany M Ebaid
- Rheumatology and Rehabilitation Department, Zagazig University Faculty of Human Medicine, Zagazig, Sharkia, Egypt
| | - Mohammad A Zakaria
- Rheumatology, Rehabilitation and Physical Medicine Department, Ain Shams University Faculty of Medicine, Cairo, Egypt
| | - Enas M Mekkawy
- Rheumatology and Rehabilitation Department, Zagazig University Faculty of Human Medicine, Zagazig, Sharkia, Egypt
| | - Rania S Nageeb
- Neurology Department, Zagazig University Faculty of Human Medicine, Zagazig, Sharkia, Egypt
| | - Rabab M Elfwakhry
- Radiodiagnosis Department, Zagazig University Faculty of Human Medicine, Zagazig, Sharkia, Egypt
| | - Dina A Seleem
- Psychiatry Department, Zagazig University Faculty of Human Medicine, Zagazig, Sharkia, Egypt
| | - Marwa A Shabana
- Clinical Pathology Department, Zagazig University Faculty of Human Medicine, Zagazig, Sharkia, Egypt
| | - Marwa M Esawy
- Clinical Pathology Department, Zagazig University Faculty of Human Medicine, Zagazig, Sharkia, Egypt
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Azizi N, Issaiy M, Jalali AH, Kolahi S, Naghibi H, Zarei D, Firouznia K. Perfusion-weighted MRI patterns in neuropsychiatric systemic lupus erythematosus: a systematic review and meta-analysis. Neuroradiology 2024:10.1007/s00234-024-03457-1. [PMID: 39230717 DOI: 10.1007/s00234-024-03457-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Accepted: 08/19/2024] [Indexed: 09/05/2024]
Abstract
BACKGROUND Neuropsychiatric Systemic Lupus Erythematosus (NPSLE) is a complex manifestation of Systemic Lupus Erythematosus (SLE) characterized by a wide range of neurological and psychiatric symptoms. This study aims to elucidate the patterns of Perfusion-Weighted MRI (PWI) in NPSLE patients compared to SLE patients without neuropsychiatric manifestations (non-NPSLE) and healthy controls (HCs). MATERIAL AND METHODS A systematic search was conducted in PubMed/Medline, Embase, Web of Science, and Scopus for studies utilizing PWI in NPSLE patients published through April 14, 2024. Cerebral blood flow (CBF) data from NPSLE, non-NPSLE patients, and HCs were extracted for meta-analysis, using standardized mean difference (SMD) as an estimate measure. For studies lacking sufficient data for inclusion, CBF, cerebral blood volume (CBV), and mean transit time (MTT) were reviewed qualitatively. RESULTS Our review included eight observational studies employing PWI techniques, including dynamic susceptibility contrast (DSC) and arterial spin labeling (ASL). The meta-analysis of NPSLE compared to non-NPSLE incorporated four studies, encompassing 104 NPSLE patients and 90 non-NPSLE patients. The results revealed an SMD of -1.42 (95% CI: -2.85-0.00, I2: 94%) for CBF in NPSLE compared to non-NPSLE. CONCLUSION PWI reveals informative patterns of cerebral perfusion, showing a significant reduction in mean CBF in NPSLE patients compared to non-NPSLE patients. Our qualitative synthesis highlights these changes, particularly in the frontal and temporal lobes. However, the existing data exhibits considerable heterogeneity and limitations.
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Affiliation(s)
- Narges Azizi
- Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Science, Imam Khomeini Hospital Complex (IKHC), 2nd Floor, Keshavarz Boulevard, Tehran, Iran
| | - Mahbod Issaiy
- Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Science, Imam Khomeini Hospital Complex (IKHC), 2nd Floor, Keshavarz Boulevard, Tehran, Iran
| | - Amir Hossein Jalali
- Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Science, Imam Khomeini Hospital Complex (IKHC), 2nd Floor, Keshavarz Boulevard, Tehran, Iran
| | - Shahriar Kolahi
- Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Science, Imam Khomeini Hospital Complex (IKHC), 2nd Floor, Keshavarz Boulevard, Tehran, Iran
| | - Hamed Naghibi
- Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Science, Imam Khomeini Hospital Complex (IKHC), 2nd Floor, Keshavarz Boulevard, Tehran, Iran
| | - Diana Zarei
- Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Science, Imam Khomeini Hospital Complex (IKHC), 2nd Floor, Keshavarz Boulevard, Tehran, Iran
| | - Kavous Firouznia
- Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Science, Imam Khomeini Hospital Complex (IKHC), 2nd Floor, Keshavarz Boulevard, Tehran, Iran.
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Labouret M, Trebossen V, Ntorkou A, Bartoli S, Aubart M, Auvin S, Bader-Meunier B, Baudouin V, Corseri O, Dingulu G, Ducrocq C, Dumaine C, Elmaleh M, Fabien N, Faye A, Hau I, Hentgen V, Kwon T, Meinzer U, Ouldali N, Parmentier C, Pouletty M, Renaldo F, Savioz I, Benoist JF, Le Roux E, Ellul P, Melki I. Juvenile neuropsychiatric systemic lupus erythematosus: A specific clinical phenotype and proposal of a probability score. Lupus 2024; 33:328-339. [PMID: 38315109 DOI: 10.1177/09612033241229022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
OBJECTIVE Juvenile systemic lupus erythematosus (j-SLE) is a rare chronic auto-immune disease involving several organs. Neuropsychiatric (NP) SLE (NPSLE) is frequent in j-SLE and associated with increased morbidity/mortality. Although NPSLE classification criteria exist, attributing NP features to j-SLE remains a major challenge. The study objective is to thoroughly describe j-NPSLE patients and assist in their diagnosis. METHODS This is a 4-year retrospective monocentric study of j-SLE patients. NP events were attributed to j-SLE using standardised diagnostic criteria and multidisciplinary paediatric clinical expertise. Clinical features, brain magnetic resonance imaging (MRI)s and samples analysis including cerebrospinal fluid were assessed. A risk of j-NPSLE score was developed based on multivariable logistic regression analysis. RESULTS Of 39 patients included, 44% were identified as having j-NPSLE. J-NPSLE diagnosis was established at the onset of j-SLE in 59% of patients. In addition to frequent kidney involvement (76%) and chilblains (65%), all j-NPSLE patients displayed psychiatric features: cognitive symptoms (82%), hallucinations (76%), depressed mood (35%), acute confused state (18%) and catatonia (12%). Neurological involvement was often mild and nonspecific, with headache (53%) in about half of the patients. The main features reported on brain MRI were nonspecific T2/FLAIR white matter hyperintensities (65%), and cerebral atrophy (88%). Upon immunosuppressive treatment, clinical improvement of NP features was observed in all j-NPSLE patients. The score developed to attribute j-NPSLE probability, guide further investigations and appropriate treatments is based on hallucinations, memory, sleep and renal involvement (Sensitivity: 0.95 Specificity: 0.85). Cerebrospinal fluid (CSF) neopterin assessment increases the score sensitivity and specificity. CONCLUSION Physicians should carefully and systematically assess the presence of NP features at diagnosis and early stages of j-SLE. For j-NPSLE patients with predominant psychiatric features, a multidisciplinary collaboration, including psychiatrists, is essential for the diagnosis, management and follow-up.
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Affiliation(s)
- Mathilde Labouret
- General Paediatrics, Department of Infectious Disease and Internal Medicine, Robert Debré Mother-Child University Hospital, Reference Centre for Rheumatic, AutoImmune and Systemic Diseases in Children (RAISE), AP-HP, Paris, France
- Sorbonne Université, Paris, France
| | - Vincent Trebossen
- Department of Child and Adolescent Psychiatry, Robert Debré Mother-Child University Hospital, AP-HP, Paris, France
- Université Paris Cité, UFR de Médecine Paris Nord, Paris, France
| | - Alexandra Ntorkou
- Department of Paediatric Radiology, Robert Debré Mother-Child University Hospital, AP-HP, Paris, France
| | - Sophie Bartoli
- General Paediatrics, Department of Infectious Disease and Internal Medicine, Robert Debré Mother-Child University Hospital, Reference Centre for Rheumatic, AutoImmune and Systemic Diseases in Children (RAISE), AP-HP, Paris, France
| | - Mélodie Aubart
- Paediatric Neurology Department, Necker-Enfants Malades Hospital, University of Paris-Cité, AP-HP, Paris, France
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, French Institute of Health and Medical Research U1163, Imagine Institute, University of Paris-Cité, Paris, France
| | - Stéphane Auvin
- Department of Paediatric Neurology, Center for Rare Epilepsies & Epilepsy Unit, Robert Debré Mother-Child University Hospital, AP-HP, Paris, France
- Université Paris Cité, INSERM NeuroDiderot, Paris, France
- Institut Universitaire de France (IUF), Paris, France
| | - Brigitte Bader-Meunier
- Department of Paediatric Haematology-Immunology And Rheumatology, Necker-Enfants-Malades University Hospital, Reference Centre for Rheumatic, AutoImmune and Systemic Diseases in Children (RAISE), AP-HP, Paris, France
- Laboratory of Immunogenetics of Paediatric Autoimmune Diseases, Imagine Institute, INSERM UMR 1163, Université Paris Cité, Paris, France
| | - Véronique Baudouin
- Department of Paediatric Nephrology, Robert Debré Mother-Child University Hospital, AP-HP, Paris, France
| | - Olivier Corseri
- General Paediatrics, Department of Infectious Disease and Internal Medicine, Robert Debré Mother-Child University Hospital, Reference Centre for Rheumatic, AutoImmune and Systemic Diseases in Children (RAISE), AP-HP, Paris, France
| | - Glory Dingulu
- General Paediatrics, Department of Infectious Disease and Internal Medicine, Robert Debré Mother-Child University Hospital, Reference Centre for Rheumatic, AutoImmune and Systemic Diseases in Children (RAISE), AP-HP, Paris, France
| | - Camille Ducrocq
- General Paediatrics, Department of Infectious Disease and Internal Medicine, Robert Debré Mother-Child University Hospital, Reference Centre for Rheumatic, AutoImmune and Systemic Diseases in Children (RAISE), AP-HP, Paris, France
| | - Cécile Dumaine
- General Paediatrics, Department of Infectious Disease and Internal Medicine, Robert Debré Mother-Child University Hospital, Reference Centre for Rheumatic, AutoImmune and Systemic Diseases in Children (RAISE), AP-HP, Paris, France
| | - Monique Elmaleh
- Department of Paediatric Radiology, Robert Debré Mother-Child University Hospital, AP-HP, Paris, France
| | - Nicole Fabien
- Immunology Department, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Lyon, France
| | - Albert Faye
- General Paediatrics, Department of Infectious Disease and Internal Medicine, Robert Debré Mother-Child University Hospital, Reference Centre for Rheumatic, AutoImmune and Systemic Diseases in Children (RAISE), AP-HP, Paris, France
- Université Paris Cité, UFR de Médecine Paris Nord, Paris, France
- UMR1123 Inserm, Université Paris Cité, Paris, France
| | - Isabelle Hau
- Department of General Paediatrics, Centre Hospitalier Intercommunal de Créteil, Créteil, France
| | - Véronique Hentgen
- Department of General Paediatrics, French Reference centre for Autoinflammatory diseases and amyloidosis (CEREMAIA), Versailles Hospital, Le Chesnay, France
| | - Théresa Kwon
- Department of Paediatric Nephrology, Robert Debré Mother-Child University Hospital, AP-HP, Paris, France
| | - Ulrich Meinzer
- General Paediatrics, Department of Infectious Disease and Internal Medicine, Robert Debré Mother-Child University Hospital, Reference Centre for Rheumatic, AutoImmune and Systemic Diseases in Children (RAISE), AP-HP, Paris, France
- Université Paris Cité, UFR de Médecine Paris Nord, Paris, France
- Center for Research on Inflammation, INSERM, Université Paris Cité, Paris, France
- Biology and Genetics of Bacterial Cell Wall Unit, Pasteur Institute, Paris, France
| | - Naim Ouldali
- General Paediatrics, Department of Infectious Disease and Internal Medicine, Robert Debré Mother-Child University Hospital, Reference Centre for Rheumatic, AutoImmune and Systemic Diseases in Children (RAISE), AP-HP, Paris, France
- Université Paris Cité, UFR de Médecine Paris Nord, Paris, France
| | - Cyrielle Parmentier
- Department of Paediatric Nephrology, Armand-Trousseau Childrens' Hospital, AP-HP, Paris, France
| | - Marie Pouletty
- General Paediatrics, Department of Infectious Disease and Internal Medicine, Robert Debré Mother-Child University Hospital, Reference Centre for Rheumatic, AutoImmune and Systemic Diseases in Children (RAISE), AP-HP, Paris, France
| | - Florence Renaldo
- Department of Paediatric Neurology, Center for Neurogenetic Diseases, Armand-Trousseau Childrens' Hospital, AP-HP, Paris, France
| | - Isabelle Savioz
- General Paediatrics, Department of Infectious Disease and Internal Medicine, Robert Debré Mother-Child University Hospital, Reference Centre for Rheumatic, AutoImmune and Systemic Diseases in Children (RAISE), AP-HP, Paris, France
| | - Jean-François Benoist
- Metabolic Biochemistry Laboratory, Reference Centre for Inherited Metabolic Diseases, Necker-Enfants-Malades University Hospital, AP-HP, Paris, France
- Université Paris Saclay, UFR Pharmacie, France
| | - Enora Le Roux
- UMR1123 Inserm, Université Paris Cité, Paris, France
- Unité d'Épidémiologie Clinique, Inserm, CIC 1426, Robert Debré Mother-Child University Hospital, Nord-Université Paris Cité, AP-HP, Paris, France
| | - Pierre Ellul
- Department of Child and Adolescent Psychiatry, Robert Debré Mother-Child University Hospital, AP-HP, Paris, France
- Immunology-Immunopathology-Immunotherapy (i3), Sorbonne Université, Paris, France
| | - Isabelle Melki
- General Paediatrics, Department of Infectious Disease and Internal Medicine, Robert Debré Mother-Child University Hospital, Reference Centre for Rheumatic, AutoImmune and Systemic Diseases in Children (RAISE), AP-HP, Paris, France
- Department of Paediatric Haematology-Immunology And Rheumatology, Necker-Enfants-Malades University Hospital, Reference Centre for Rheumatic, AutoImmune and Systemic Diseases in Children (RAISE), AP-HP, Paris, France
- Imagine Institute, Laboratory of Neurogenetics and Neuroinflammation, INSERM UMR 1163, Université Paris Cité, Paris, France
- Paediatrics, Rheumatology and Paediatric Internal Medicine, Children's Hospital, Bordeaux, France
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der Heijden HV, Rameh V, Golden E, Ronen I, Sundel RP, Knight A, Chang JC, Upadhyay J. Implications of Inflammatory Processes on a Developing Central Nervous System in Childhood-Onset Systemic Lupus Erythematosus. Arthritis Rheumatol 2024; 76:332-344. [PMID: 37901986 PMCID: PMC10922196 DOI: 10.1002/art.42736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/20/2023] [Accepted: 10/25/2023] [Indexed: 10/31/2023]
Abstract
Systemic lupus erythematosus (SLE) is a chronic autoimmune disease that is increasingly affecting pediatric and adult populations. Neuropsychiatric manifestations (ie, cognitive dysfunction and mood disorders) appear to occur with greater severity and poorer prognosis in childhood-onset SLE (cSLE) versus adult-onset SLE, negatively impacting school function, self-management, and psychosocial health, as well as lifelong health-related quality of life. In this review, we describe pathogenic mechanisms active in cSLE, such as maladaptive inflammatory processes and ischemia, which are hypothesized to underpin central phenotypes in patients with cSLE, and the role of alterations in protective central nervous system (CNS) barriers (ie, the blood-brain barrier) are also discussed. Recent findings derived from novel neuroimaging approaches are highlighted because the methods employed in these studies hold potential for identifying CNS abnormalities that would otherwise remain undetected with conventional multiple resonance imaging studies (eg, T2-weighted or fluid-attenuated inversion recovery sequences). Furthermore, we propose that a more robust presentation of neuropsychiatric symptoms in cSLE is in part due to the harmful impact of a chronic inflammatory insult on a developing CNS. Although the immature status of the CNS may leave patients with cSLE more vulnerable to harboring neuropsychiatric manifestations, the same property may represent a greater urgency to reverse the maladaptive effects associated with a proneuroinflammatory state, provided that effective diagnostic tools and treatment strategies are available. Finally, considering the crosstalk among the CNS and other organ systems affected in cSLE, we postulate that a finer understanding of this interconnectivity and its role in the clinical presentation in cSLE is warranted.
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Affiliation(s)
- Hanne Van der Heijden
- Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children’s Hospital, Harvard Medical School, Boston, MA USA
- Faculty of Science, University of Amsterdam, Amsterdam, The Netherlands
| | - Vanessa Rameh
- Division of Radiology, Boston Children’s Hospital, Harvard Medical School, Boston, MA USA
| | - Emma Golden
- Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children’s Hospital, Harvard Medical School, Boston, MA USA
| | - Itamar Ronen
- Clinical Imaging Science Center, Brighton and Sussex Medical School, University of Sussex, Brighton, UK
| | - Robert P. Sundel
- Division of Immunology, Boston Children’s Hospital, Harvard Medical School, Boston, MA USA
| | - Andrea Knight
- Division of Rheumatology, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Paediatrics, University of Toronto, Toronto, ON, Canada
- Neurosciences and Mental Health, Research Institute, The Hospital for Sick Children, Toronto, ON, Canada
| | - Joyce C. Chang
- Division of Immunology, Boston Children’s Hospital, Harvard Medical School, Boston, MA USA
| | - Jaymin Upadhyay
- Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children’s Hospital, Harvard Medical School, Boston, MA USA
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, MA USA
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Juvenile Neuropsychiatric Systemic Lupus Erythematosus: Identification of Novel Central Neuroinflammation Biomarkers. J Clin Immunol 2023; 43:615-624. [PMID: 36469191 PMCID: PMC9957825 DOI: 10.1007/s10875-022-01407-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 11/12/2022] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Juvenile systemic lupus erythematosus (j-SLE) is a rare chronic autoimmune disease affecting multiple organs. Ranging from minor features, such as headache or mild cognitive impairment, to serious and life-threatening presentations, j-neuropsychiatric SLE (j-NPSLE) is a therapeutic challenge. Thus, the diagnosis of NPSLE remains difficult, especially in pediatrics, with no specific biomarker of the disease yet validated. OBJECTIVES To identify central nervous system (CNS) disease biomarkers of j-NPSLE. METHODS A 5-year retrospective tertiary reference monocentric j-SLE study. A combination of standardized diagnostic criteria and multidisciplinary pediatric clinical expertise was combined to attribute NP involvement in the context of j-SLE. Neopterin and interferon-alpha (IFN-α) protein levels in cerebrospinal fluid (CSF) were assessed, together with routine biological and radiological investigations. RESULTS Among 51 patients with j-SLE included, 39% presented with j-NPSLE. J-NPSLE was diagnosed at onset of j-SLE in 65% of patients. No specific routine biological or radiological marker of j-NPSLE was identified. However, CSF neopterin levels were significantly higher in active j-NPSLE with CNS involvement than in j-SLE alone (p = 0.0008). Neopterin and IFN-α protein levels in CSF were significantly higher at diagnosis of j-NPSLE with CNS involvement than after resolution of NP features (respectively p = 0.0015 and p = 0.0010) upon immunosuppressive treatment in all patients tested (n = 10). Both biomarkers correlated strongly with each other (Rs = 0.832, p < 0.0001, n = 23 paired samples). CONCLUSION CSF IFN-α and neopterin constitute promising biomarkers useful in the diagnosis and monitoring of activity in j-NPSLE.
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Tract-based white matter hyperintensity patterns in patients with systemic lupus erythematosus using an unsupervised machine learning approach. Sci Rep 2022; 12:21376. [PMID: 36494508 PMCID: PMC9734118 DOI: 10.1038/s41598-022-25990-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 12/07/2022] [Indexed: 12/13/2022] Open
Abstract
Currently, little is known about the spatial distribution of white matter hyperintensities (WMH) in the brain of patients with Systemic Lupus erythematosus (SLE). Previous lesion markers, such as number and volume, ignore the strategic location of WMH. The goal of this work was to develop a fully-automated method to identify predominant patterns of WMH across WM tracts based on cluster analysis. A total of 221 SLE patients with and without neuropsychiatric symptoms from two different sites were included in this study. WMH segmentations and lesion locations were acquired automatically. Cluster analysis was performed on the WMH distribution in 20 WM tracts. Our pipeline identified five distinct clusters with predominant involvement of the forceps major, forceps minor, as well as right and left anterior thalamic radiations and the right inferior fronto-occipital fasciculus. The patterns of the affected WM tracts were consistent over the SLE subtypes and sites. Our approach revealed distinct and robust tract-based WMH patterns within SLE patients. This method could provide a basis, to link the location of WMH with clinical symptoms. Furthermore, it could be used for other diseases characterized by presence of WMH to investigate both the clinical relevance of WMH and underlying pathomechanism in the brain.
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7
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Monahan RC, van den Beukel MD, Borggreven NV, Fronczek R, Huizinga TWJ, Kloppenburg M, Steup-Beekman GM, Trouw LA. Autoantibodies against specific post-translationally modified proteins are present in patients with lupus and associate with major neuropsychiatric manifestations. RMD Open 2022; 8:rmdopen-2021-002079. [PMID: 35450955 PMCID: PMC9024229 DOI: 10.1136/rmdopen-2021-002079] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 02/27/2022] [Indexed: 11/08/2022] Open
Abstract
Background Although autoantibodies are an important hallmark of systemic lupus erythematosus (SLE), most are not specific for SLE or any of its clinical manifestations. Autoantibodies against post-translationally modified (PTM) proteins have been studied extensively in rheumatoid arthritis and associate with disease progression. While PTMs have also been detected in patients with SLE, studies on anti-PTM antibodies remain scarce. We studied the presence of anti-PTM antibodies in SLE and neuropsychiatric SLE (NPSLE), a manifestation that lacks serological markers. Methods IgG antibody responses against six PTMs (malondialdehyde–acetaldehyde adducts (MAA), advanced glycation end-products (AGE), carbamylation (CarP), citrullination, acetylation and nitration) were tested using ELISA in sera of 349 patients with SLE (mean age 44±13 years; 87% female) and compared with 108 healthy controls. Levels and positivity were correlated with clinical features and SLE manifestations. Results Anti-MAA, anti-AGE and anti-CarP antibodies were more prevalent in SLE compared with controls (MAA: 29% vs 3%, AGE: 18% vs 4%, CarP: 14% vs 5%, all p≤0.0001). Anti-MAA and anti-AGE antibodies correlated with clinical manifestations and serological inflammatory markers. Patients with major NPSLE showed higher positivity of anti-MAA (39% vs 24%, p=0.01) and anti-CarP antibodies (20% vs 11%, p=0.04) than patients without major NPSLE. In addition, anti-PTM antibody levels correlated with brain volumes, an objective measure of nervous system involvement. Conclusions In our NPSLE cohort, a subset of patients with SLE have anti-PTM antibodies against MAA, AGE and CarP modified proteins. Interestingly, anti-MAA and anti-CarP were more prevalent in NPSLE, a manifestation for which no biomarkers exist.
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Affiliation(s)
- Rory C Monahan
- Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | | | | | - Rolf Fronczek
- Neurology, Leiden University Medical Center, Leiden, The Netherlands
| | - Tom W J Huizinga
- Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Margreet Kloppenburg
- Rheumatology, Leiden University Medical Center, Leiden, The Netherlands.,Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Gerda M Steup-Beekman
- Rheumatology, Leiden University Medical Center, Leiden, The Netherlands.,Rheumatology, Haaglanden Medical Center, The Hague, The Netherlands
| | - Leendert A Trouw
- Immunology, Leiden University Medical Center, Leiden, The Netherlands
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8
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Langensee L, Mårtensson J, Jönsen A, Zervides K, Bengtsson A, Nystedt J, Cannerfelt B, Nilsson P, Mannfolk P, Lätt J, Rumetshofer T, Sundgren PC. Cognitive performance in systemic lupus erythematosus patients: a cross-sectional and longitudinal study. BMC Rheumatol 2022; 6:22. [PMID: 35440096 PMCID: PMC9019974 DOI: 10.1186/s41927-022-00253-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 02/16/2022] [Indexed: 12/02/2022] Open
Abstract
Background Previous research has provided evidence for cognitive dysfunction as a common symptom of systemic lupus erythematosus (SLE). In light of this, the primary goal of this study was to investigate how cognitive impairment in this patient group develops over time. In addition, the present dataset contributes to delineating the specific abilities that are impaired in SLE patients as well as answering the question whether the disease affects the cognition of SLE patients with neuropsychiatric manifestations (NPSLE) and without (non-NPSLE) in distinct ways. Methods 91 female participants (33 NPSLE, 29 non-NPSLE, 29 healthy controls (HC)) underwent standardized neurocognitive testing. A total of ten different cognitive abilities were assessed, among others executive function, memory, and attention. Some of the participants (30 NPSLE patients, 22 non-NPSLE, 13 HC) were tested twice (mean time between testing sessions: 50 months) to enable longitudinal tracking of cognitive abilities. Analyses of Variance (ANOVA) were conducted to determine whether cognitive performance differed cross-sectionally between the groups. Linear mixed effects models were fit to investigate performance differences between the groups over time. Results Cross-sectional analysis at follow-up demonstrated that the cognitive performance of both NPSLE and non-NPSLE was significantly lower than that of HC for the motor speed and the psychomotor speed domain. Additionally, NPSLE patients performed significantly weaker than HC in the complex attention domain. At the same time, the cross-sectional data did not yield any support for performance differences between NPSLE and non-NPSLE patients. Weak positive correlations between disease duration and psychomotor speed, motor speed and reaction time emerged. A temporal progression of cognitive dysfunction in SLE patients was not confirmed. Conclusions Cognitive performance is affected in both non-NPSLE and NPSLE patients. However, a linear decline in performance over time could not be verified. More in-depth longitudinal assessments of cognition in SLE patients are needed to establish how cognitive abilities in this patient population develop over time. Supplementary Information The online version contains supplementary material available at 10.1186/s41927-022-00253-3.
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Affiliation(s)
- L Langensee
- Department of Clinical Sciences Lund, Logopedics, Phoniatrics and Audiology, Faculty of Medicine, Lund University, 22185, Lund, Sweden
| | - J Mårtensson
- Department of Clinical Sciences Lund, Logopedics, Phoniatrics and Audiology, Faculty of Medicine, Lund University, 22185, Lund, Sweden
| | - A Jönsen
- Department of Clinical Sciences Lund, Rheumatology, Faculty of Medicine, Lund University, 22185, Lund, Sweden
| | - K Zervides
- Department of Clinical Sciences Lund, Rheumatology, Faculty of Medicine, Lund University, 22185, Lund, Sweden.,Department of Clinical Sciences Lund, Neurology, Faculty of Medicine, Lund University, 22185, Lund, Sweden
| | - A Bengtsson
- Department of Clinical Sciences Lund, Rheumatology, Faculty of Medicine, Lund University, 22185, Lund, Sweden
| | - J Nystedt
- Department of Clinical Sciences Lund, Radiology, Faculty of Medicine, Lund University, 22185, Lund, Sweden
| | - B Cannerfelt
- Department of Medical Imaging and Physiology, Skåne University Hospital, 221 85, Lund, Sweden
| | - P Nilsson
- Department of Clinical Sciences Lund, Neurology, Faculty of Medicine, Lund University, 22185, Lund, Sweden
| | - P Mannfolk
- Department of Medical Imaging and Physiology, Skåne University Hospital, 221 85, Lund, Sweden
| | - J Lätt
- Department of Medical Imaging and Physiology, Skåne University Hospital, 221 85, Lund, Sweden
| | - T Rumetshofer
- Department of Clinical Sciences Lund, Logopedics, Phoniatrics and Audiology, Faculty of Medicine, Lund University, 22185, Lund, Sweden
| | - P C Sundgren
- Department of Clinical Sciences Lund, Radiology, Faculty of Medicine, Lund University, 22185, Lund, Sweden. .,Department of Medical Imaging and Physiology, Skåne University Hospital, 221 85, Lund, Sweden. .,Lund University BioImaging Center (LBIC), Lund University, 22185, Lund, Sweden.
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9
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Luo X, Piao S, Li H, Li Y, Xia W, Bao Y, Liu X, Geng D, Wu H, Yang L. Multi-lesion radiomics model for discrimination of relapsing-remitting multiple sclerosis and neuropsychiatric systemic lupus erythematosus. Eur Radiol 2022; 32:5700-5710. [PMID: 35243524 DOI: 10.1007/s00330-022-08653-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 01/18/2022] [Accepted: 02/06/2022] [Indexed: 01/06/2023]
Abstract
OBJECTIVES To develop an MRI-based multi-lesion radiomics model for discrimination of relapsing-remitting multiple sclerosis (RRMS) and its mimicker neuropsychiatric systemic lupus erythematosus (NPSLE). METHODS A total of 112 patients with RRMS (n = 63) or NPSLE (n = 49) were assigned to training and test sets with a ratio of 3:1. All lesions across the whole brain were manually segmented on T2-weighted fluid-attenuated inversion recovery images. For each single lesion, 371 radiomics features were extracted and trained using machine learning algorithms, producing Radiomics Index for Lesion (RIL) for each lesion and a single-lesion radiomics model. Then, for each subject, single lesions were assigned to one of two disease courts based on their distance to decision threshold, and a Radiomics Index for Subject (RIS) was calculated as the mean RIL value of lesions on the higher-weighted court. Accordingly, a subject-level discrimination model was constructed and compared with performances of two radiologists. RESULTS The subject-based discrimination model satisfactorily differentiated RRMS and NPSLE in both training (AUC = 0.967, accuracy = 0.892, sensitivity = 0.917, and specificity = 0.872) and test sets (AUC = 0.962, accuracy = 0.931, sensitivity = 1.000, and specificity = 0.875), significantly better than the single-lesion radiomics method (training: p < 0.001; test: p = 0.001) Besides, the discrimination model significantly outperformed the senior radiologist in the training set (training: p = 0.018; test: p = 0.077) and the junior radiologist in both the training and test sets (training: p = 0.008; test: p = 0.023). CONCLUSIONS The multi-lesion radiomics model could effectively discriminate between RRMS and NPSLE, providing a supplementary tool for accurate differential diagnosis of the two diseases. KEY POINTS • Radiomic features of brain lesions in RRMS and NPSLE were different. • The multi-lesion radiomics model constructed using a merging strategy was comprehensively superior to the single-lesion-based model for discrimination of RRMS and NPSLE. • The RRMS-NPSLE discrimination model showed a significantly better performance or a trend toward significance than the radiologists.
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Affiliation(s)
- Xiao Luo
- Academy for Engineering and Technology, Fudan University, 220 Handan Road, Shanghai, 200433, China
| | - Sirong Piao
- Department of Radiology, Huashan Hospital, Fudan University, 12 Wulumuqi Middle Road, Shanghai, 200040, China
| | - Haiqing Li
- Department of Radiology, Huashan Hospital, Fudan University, 12 Wulumuqi Middle Road, Shanghai, 200040, China
| | - Yuxin Li
- Department of Radiology, Huashan Hospital, Fudan University, 12 Wulumuqi Middle Road, Shanghai, 200040, China.,Institute of Functional and Molecular Medical Imaging, Fudan University, Shanghai, China
| | - Wei Xia
- Academy for Engineering and Technology, Fudan University, 220 Handan Road, Shanghai, 200433, China
| | - Yifang Bao
- Department of Radiology, Huashan Hospital, Fudan University, 12 Wulumuqi Middle Road, Shanghai, 200040, China
| | - Xueling Liu
- Department of Radiology, Huashan Hospital, Fudan University, 12 Wulumuqi Middle Road, Shanghai, 200040, China
| | - Daoying Geng
- Academy for Engineering and Technology, Fudan University, 220 Handan Road, Shanghai, 200433, China.,Department of Radiology, Huashan Hospital, Fudan University, 12 Wulumuqi Middle Road, Shanghai, 200040, China.,Institute of Functional and Molecular Medical Imaging, Fudan University, Shanghai, China
| | - Hao Wu
- Department of Dermatology, Huashan Hospital, Fudan University, 12 Wulumuqi Middle Road, Shanghai, 200040, China.
| | - Liqin Yang
- Academy for Engineering and Technology, Fudan University, 220 Handan Road, Shanghai, 200433, China. .,Department of Radiology, Huashan Hospital, Fudan University, 12 Wulumuqi Middle Road, Shanghai, 200040, China. .,Institute of Functional and Molecular Medical Imaging, Fudan University, Shanghai, China.
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10
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Inglese F, Kim M, Steup-Beekman GM, Huizinga TWJ, van Buchem MA, de Bresser J, Kim DS, Ronen I. MRI-Based Classification of Neuropsychiatric Systemic Lupus Erythematosus Patients With Self-Supervised Contrastive Learning. Front Neurosci 2022; 16:695888. [PMID: 35250439 PMCID: PMC8889016 DOI: 10.3389/fnins.2022.695888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 01/19/2022] [Indexed: 11/13/2022] Open
Abstract
Introduction/PurposeSystemic lupus erythematosus (SLE) is a chronic auto-immune disease with a broad spectrum of clinical presentations, including heterogeneous neuropsychiatric (NP) syndromes. Structural brain abnormalities are commonly found in SLE and NPSLE, but their role in diagnosis is limited, and their usefulness in distinguishing between NPSLE patients and patients in which the NP symptoms are not primarily attributed to SLE (non-NPSLE) is non-existent. Self-supervised contrastive learning algorithms proved to be useful in classification tasks in rare diseases with limited number of datasets. Our aim was to apply self-supervised contrastive learning on T1-weighted images acquired from a well-defined cohort of SLE patients, aiming to distinguish between NPSLE and non-NPSLE patients.Subjects and MethodsWe used 3T MRI T1-weighted images of 163 patients. The training set comprised 68 non-NPSLE and 34 NPSLE patients. We applied random geometric transformations between iterations to augment our data sets. The ML pipeline consisted of convolutional base encoder and linear projector. To test the classification task, the projector was removed and one linear layer was measured. Validation of the method consisted of 6 repeated random sub-samplings, each using a random selection of a small group of patients of both subtypes.ResultsIn the 6 trials, between 79% and 83% of the patients were correctly classified as NPSLE or non-NPSLE. For a qualitative evaluation of spatial distribution of the common features found in both groups, Gradient-weighted Class Activation Maps (Grad-CAM) were examined. Thresholded Grad-CAM maps show areas of common features identified for the NPSLE cohort, while no such communality was found for the non-NPSLE group.Discussion/ConclusionThe self-supervised contrastive learning model was effective in capturing common brain MRI features from a limited but well-defined cohort of SLE patients with NP symptoms. The interpretation of the Grad-CAM results is not straightforward, but indicates involvement of the lateral and third ventricles, periventricular white matter and basal cisterns. We believe that the common features found in the NPSLE population in this study indicate a combination of tissue loss, local atrophy and to some extent that of periventricular white matter lesions, which are commonly found in NPSLE patients and appear hypointense on T1-weighted images.
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Affiliation(s)
- Francesca Inglese
- Department of Radiology, Leiden University Medical Center, Leiden, Netherlands
| | - Minseon Kim
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | | | - Tom W. J. Huizinga
- Department of Rheumatology, Leiden University Medical Center, Leiden, Netherlands
| | - Mark A. van Buchem
- Department of Radiology, Leiden University Medical Center, Leiden, Netherlands
| | - Jeroen de Bresser
- Department of Radiology, Leiden University Medical Center, Leiden, Netherlands
| | - Dae-Shik Kim
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Itamar Ronen
- Department of Radiology, Leiden University Medical Center, Leiden, Netherlands
- *Correspondence: Itamar Ronen,
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11
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Li S, Bai R, Yang Y, Zhao R, Upreti B, Wang X, Liu S, Cheng Y, Xu J. Abnormal cortical thickness and structural covariance networks in systemic lupus erythematosus patients without major neuropsychiatric manifestations. Arthritis Res Ther 2022; 24:259. [PMID: 36443835 PMCID: PMC9703716 DOI: 10.1186/s13075-022-02954-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 11/11/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Non-neuropsychiatric systemic lupus erythematosus (non-NPSLE) has been confirmed to have subtle changes in brain structure before the appearance of obvious neuropsychiatric symptoms. Previous literature mainly focuses on brain structure loss in non-NPSLE; however, the results are heterogeneous, and the impact of structural changes on the topological structure of patients' brain networks remains to be determined. In this study, we combined neuroimaging and network analysis methods to evaluate the changes in cortical thickness and its structural covariance networks (SCNs) in patients with non-NPSLE. METHODS We compare the cortical thickness of non-NPSLE patients (N=108) and healthy controls (HCs, N=88) using both surface-based morphometry (SBM) and regions of interest (ROI) methods, respectively. After that, we analyzed the correlation between the abnormal cortical thickness results found in the ROI method and a series of clinical features. Finally, we constructed the SCNs of two groups using the regional cortical thickness and analyzed the abnormal SCNs of non-NPSLE. RESULTS By SBM method, we found that cortical thickness of 34 clusters in the non-NPSLE group was thinner than that in the HC group. ROI method based on Destrieux atlas showed that cortical thickness of 57 regions in the non-NPSLE group was thinner than that in the HC group and related to the course of disease, autoantibodies, the cumulative amount of immunosuppressive agents, and cognitive psychological scale. In the SCN analysis, the cortical thickness SCNs of the non-NPSLE group did not follow the small-world attribute at a few densities, and the global clustering coefficient appeared to increase. The area under the curve analysis showed that there were significant differences between the two groups in clustering coefficient, degree, betweenness, and local efficiency. There are a total of seven hubs for non-NPSLE, and five hubs in HCs, the two groups do not share a common hub distribution. CONCLUSION Extensive and obvious reduction in cortical thickness and abnormal topological organization of SCNs are observed in non-NPSLE patients. The observed abnormalities may not only be the realization of brain damage caused by the disease, but also the contribution of the compensatory changes within the nervous system.
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Affiliation(s)
- Shu Li
- Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Ru Bai
- Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yifan Yang
- Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Ruotong Zhao
- Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Bibhuti Upreti
- Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xiangyu Wang
- Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Shuang Liu
- Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yuqi Cheng
- Department of Psychiatry, First Affiliated Hospital of Kunming Medical University, Kunming, China.
| | - Jian Xu
- Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming, China.
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12
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Inglese F, Jaarsma-Coes MG, Steup-Beekman GM, Monahan R, Huizinga T, van Buchem MA, Ronen I, de Bresser J. Neuropsychiatric systemic lupus erythematosus is associated with a distinct type and shape of cerebral white matter hyperintensities. Rheumatology (Oxford) 2021; 61:2663-2671. [PMID: 34730801 PMCID: PMC9157072 DOI: 10.1093/rheumatology/keab823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 10/27/2021] [Indexed: 11/18/2022] Open
Abstract
Objectives Advanced white matter hyperintensity (WMH) markers on brain MRI may help reveal underlying mechanisms and aid in the diagnosis of different phenotypes of SLE patients experiencing neuropsychiatric (NP) manifestations. Methods In this prospective cohort study, we included a clinically well-defined cohort of 155 patients consisting of 38 patients with NPSLE (26 inflammatory and 12 ischaemic phenotype) and 117 non-NPSLE patients. Differences in 3 T MRI WMH markers (volume, type and shape) were compared between patients with NPSLE and non-NPSLE and between patients with inflammatory and ischaemic NPSLE by linear and logistic regression analyses corrected for age, sex and intracranial volume. Results Compared with non-NPSLE [92% female; mean age 42 (13) years], patients with NPSLE [87% female; mean age 40 (14) years] showed a higher total WMH volume [B (95%-CI)]: 0.46 (0.0 7 ↔ 0.86); P = 0.021], a higher periventricular/confluent WMH volume [0.46 (0.0 6 ↔ 0.86); P = 0.024], a higher occurrence of periventricular with deep WMH type [0.32 (0.1 3 ↔ 0.77); P = 0.011], a higher number of deep WMH lesions [3.06 (1.2 1 ↔ 4.90); P = 0.001] and a more complex WMH shape [convexity: ‒0.07 (‒0.12 ↔ ‒0.02); P = 0.011, concavity index: 0.05 (0.0 1 ↔ 0.08); P = 0.007]. WMH shape was more complex in inflammatory NPSLE patients [89% female; mean age 39 (15) years] compared with patients with the ischaemic phenotype [83% female; mean age 41 (11) years] [concavity index: 0.08 (0.0 1 ↔ 0.15); P = 0.034]. Conclusion We demonstrated that patients with NPSLE showed a higher periventricular/confluent WMH volume and more complex shape of WMH compared with non-NPSLE patients. This finding was particularly significant in inflammatory NPLSE patients, suggesting different or more severe underlying pathophysiological abnormalities.
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Affiliation(s)
- Francesca Inglese
- Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | | | - Gerda M Steup-Beekman
- Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands.,Department of Rheumatology, Haaglanden Medical Center, The Hague, the Netherlands
| | - Rory Monahan
- Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands
| | - Tom Huizinga
- Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands
| | - Mark A van Buchem
- Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Itamar Ronen
- Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Jeroen de Bresser
- Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
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13
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Monahan RC, Inglese F, Middelkoop H, van Buchem M, Huizinga TW, Kloppenburg M, Ronen I, Steup-Beekman GM, de Bresser J. White matter hyperintensities associate with cognitive slowing in patients with systemic lupus erythematosus and neuropsychiatric symptoms. RMD Open 2021; 7:rmdopen-2021-001650. [PMID: 34321253 PMCID: PMC8320250 DOI: 10.1136/rmdopen-2021-001650] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 07/17/2021] [Indexed: 12/31/2022] Open
Abstract
Objective To compare cognitive function between patients with different phenotypes of neuropsychiatric systemic lupus erythematosus (NPSLE) and assess its association with brain and white matter hyperintensity (WMH) volumes. Methods Patients attending the Leiden University Medical Centre NPSLE clinic between 2007 and 2015 without large brain infarcts were included (n=151; 42±13 years, 91% women). In a multidisciplinary consensus meeting, neuropsychiatric symptoms were attributed to systemic lupus erythematosus (SLE) (NPSLE, inflammatory (n=24) or ischaemic (n=12)) or to minor/non-NPSLE (n=115). Multiple regression analyses were performed to compare cognitive function between NPSLE phenotypes and to assess associations between brain and WMH volumes and cognitive function cross-sectionally. Results Global cognitive function was impaired in 5%, learning and memory (LM) in 46%, executive function and complex attention (EFCA) in 39% and psychomotor speed (PS) in 46% of all patients. Patients with inflammatory NPSLE showed the most cognitive impairment in all domains (p≤0.05). Higher WMH volume associated with lower PS in the total group (B: −0.14 (95% CI −0.32 to −0.02)); especially in inflammatory NPSLE (B: −0.36 (95% CI −0.60 to −0.12). In the total group, lower total brain volume and grey matter volume associated with lower cognitive functioning in all domains (all: 0.00/0.01 (0.00;0.01)) and lower white matter volume associated with lower LM, EFCA and PS (all: 0.00/0.01 (0.00;0.01)). Conclusion We demonstrated that an association between brain and WMH volumes and cognitive function is present in patients with SLE, but differs between (NP)SLE phenotypes. WMHs associated with PS especially in inflammatory NPSLE, which suggests a different, potentially more severe underlying pathophysiological mechanism of cognitive impairment in this phenotype.
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Affiliation(s)
| | - Francesca Inglese
- Department of Radiology, Leiden University Medical Centre, Leiden, the Netherlands
| | - Huub Middelkoop
- Department of Neurology, Leiden University Medical Centre, Leiden, the Netherlands.,Institute of Psychology, Health, Medical and Neuropsychology Unit, Leiden University, Leiden, the Netherlands
| | - Mark van Buchem
- Department of Radiology, Leiden University Medical Centre, Leiden, the Netherlands
| | - Tom Wj Huizinga
- Rheumatology, Leiden University Medical Centre, Leiden, the Netherlands
| | - Margreet Kloppenburg
- Rheumatology, Leiden University Medical Centre, Leiden, the Netherlands.,Department of Clinical Epidemiology, Leiden University Medical Centre, Leiden, the Netherlands
| | - Itamar Ronen
- Department of Radiology, Leiden University Medical Centre, Leiden, the Netherlands
| | - Gerda M Steup-Beekman
- Rheumatology, Leiden University Medical Centre, Leiden, the Netherlands.,Department of Rheumatology, Medisch Centrum Haaglanden, the Hague, the Netherlands
| | - Jeroen de Bresser
- Department of Radiology, Leiden University Medical Centre, Leiden, the Netherlands
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