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Huang J, Zhu Q, Wang B, Wang H, Xie Z, Zhu X, Zhao T, Yang Z. Antiphospholipid antibodies and the risk of adverse pregnancy outcomes in patients with systemic lupus erythematosus: a systematic review and meta-analysis. Expert Rev Clin Immunol 2024; 20:793-801. [PMID: 38445835 DOI: 10.1080/1744666x.2024.2324005] [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: 08/18/2023] [Accepted: 02/12/2024] [Indexed: 03/07/2024]
Abstract
OBJECTIVE This article aims to evaluate the magnitude of adverse pregnancy outcomes (APOs) risks associated with different antiphospholipid antibody (aPL) profiles in women with systemic lupus erythematosus (SLE). METHODS Multiple databases were investigated to identify articles that explored the relationship between aPLs and APOs in SLE patients. A random effects model was used for calculating pooled odds ratios (OR). Stata version 15.0 was utilized to conduct the meta-analysis. RESULTS There were 5234 patients involved in 30 studies. Overall aPL was linked to an increased incidence of any kind of APOs, fetal loss, and preterm birth. Any kind of APOs and preterm delivery were more common in patients with lupus anticoagulant (LA) positive. Anticardiolipin antibody (aCL) was associated with an increased risk of any kind of APOs and fetal loss. The association between aCL-IgM and fetal loss was also significant. Patients with anti-beta2-glycoprotein1 antibody (antiβ2GP1) positivity had an increased risk of fetal loss. CONCLUSIONS Both LA and aCL were risk factors of APOs in patients with SLE. Not only ACL, particularly aCL-IgM, but antiβ2GP1 were associated with an increased risk of fetal loss, while LA appeared to indicate the risk of preterm birth.PROSPERO (CRD42023388122).
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Affiliation(s)
- Jinge Huang
- The First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qingmiao Zhu
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Baizhou Wang
- The First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Hanzheng Wang
- The First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhijun Xie
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xingyu Zhu
- Department of Nephrology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Ting Zhao
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zi Yang
- The Third School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
- Teaching Faculty, New Zealand College of Chinese Medicine, Greenlane, New Zealand
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Saavedra MÁ, Gracia-Aréchiga TS, Miranda-Hernández D, Sánchez A, Arrucha-Cozaya M, Cruz-Domínguez MDP. Active but not quiescent lupus nephritis during pregnancy is associated with a higher rate of adverse obstetric outcomes: Analysis of a prospective cohort. Int J Gynaecol Obstet 2024. [PMID: 38736284 DOI: 10.1002/ijgo.15601] [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: 08/06/2023] [Revised: 04/08/2024] [Accepted: 04/28/2024] [Indexed: 05/14/2024]
Abstract
OBJECTIVE To compare the maternal-fetal/neonatal outcome in patients with systemic lupus erythematosus (SLE) with and without lupus nephritis (LN) in remission or with active disease. METHODS A prospective cohort of pregnant patients with SLE (ACR 1997 criteria) was studied from January 2009 to December 2021. Demographic, clinical, biochemical, and immunological variables as well as the usual maternal-fetal/neonatal complications were recorded. We compared four groups according to the status of SLE during pregnancy: patients with quiescent SLE without lupus nephritis, patients with active SLE without lupus nephritis, patients with quiescent lupus nephritis, and patients with active lupus nephritis. Statistical analysis included descriptive statistics, bivariate analysis, and Cox regression analysis. RESULTS A total of 439 pregnancies were studied, with a median age of 28 ± 6, SLE duration of 60 months (interquartile range 36-120). A higher frequency of maternal and fetal/neonatal complications was observed in patients with active SLE with or without lupus nephritis. Multivariate analysis showed that active LN was a risk factor for gestational hypertension (hazard ratios [HR] 1.95; 95% confidence intervals [CI]: 1.01-6.39), premature rupture of membranes (HR 3.56; 95% CI: 1.79-16.05) and more frequent cesarean section (HR 1.82; 95% CI: 1.13-2.94). CONCLUSION LN is associated with a higher frequency of maternal complications, especially in those patients with active disease during pregnancy, and those maternal complications had an impact on poor fetal/neonatal outcomes. Strict control and timely care of LN could improve the obstetric prognosis.
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Affiliation(s)
- Miguel Ángel Saavedra
- División de Investigación en Salud, Hospital de Especialidades Dr. Antonio Fraga Mouret, Centro Médico Nacional La Raza, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Tayde Sarahí Gracia-Aréchiga
- Departamento de Reumatología, Hospital de Especialidades Dr. Antonio Fraga Mouret, Centro Médico Nacional La Raza, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Dafhne Miranda-Hernández
- Departamento de Reumatología, Hospital de Especialidades Dr. Antonio Fraga Mouret, Centro Médico Nacional La Raza, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Antonio Sánchez
- Departamento de Reumatología, Hospital de Especialidades Dr. Antonio Fraga Mouret, Centro Médico Nacional La Raza, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | | | - María Del Pilar Cruz-Domínguez
- Dirección de Educación e Investigación en Salud, Hospital de Especialidades Dr. Antonio Fraga Mouret, Centro Médico Nacional La Raza, México City, Mexico
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Torell A, Stockfelt M, Larsson G, Blennow K, Zetterberg H, Leonard D, Rönnblom L, Saleh M, Sjöwall C, Strevens H, Jönsen A, Bengtsson AA, Trysberg E, Sennström MM, Zickert A, Svenungsson E, Gunnarsson I, Christenson K, Bylund J, Jacobsson B, Rudin A, Lundell AC. Low-density granulocytes are related to shorter pregnancy duration but not to interferon alpha protein blood levels in systemic lupus erythematosus. Arthritis Res Ther 2023; 25:107. [PMID: 37349744 PMCID: PMC10286457 DOI: 10.1186/s13075-023-03092-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/13/2023] [Indexed: 06/24/2023] Open
Abstract
BACKGROUND An increased risk of pregnancy complications is seen in women with systemic lupus erythematosus (SLE), but the specific immunopathological drivers are still unclear. Hallmarks of SLE are granulocyte activation, type I interferon (IFN) overproduction, and autoantibodies. Here we examined whether low-density granulocytes (LDG) and granulocyte activation increase during pregnancy, and related the results to IFNα protein levels, autoantibody profile, and gestational age at birth. METHODS Repeated blood samples were collected during pregnancy in trimesters one, two, and three from 69 women with SLE and 27 healthy pregnant women (HC). Nineteen of the SLE women were also sampled late postpartum. LDG proportions and granulocyte activation (CD62L shedding) were measured by flow cytometry. Plasma IFNα protein concentrations were quantified by single molecule array (Simoa) immune assay. Clinical data were obtained from medical records. RESULTS Women with SLE had higher LDG proportions and increased IFNα protein levels compared to HC throughout pregnancy, but neither LDG fractions nor IFNα levels differed during pregnancy compared to postpartum in SLE. Granulocyte activation status was higher in SLE relative to HC pregnancies, and it was increased during pregnancy compared to after pregnancy in SLE. Higher LDG proportions in SLE were associated with antiphospholipid positivity but not to IFNα protein levels. Finally, higher LDG proportions in trimester three correlated independently with lower gestational age at birth in SLE. CONCLUSION Our results suggest that SLE pregnancy results in increased peripheral granulocyte priming, and that higher LDG proportions late in pregnancy are related to shorter pregnancy duration but not to IFNα blood levels in SLE.
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Affiliation(s)
- Agnes Torell
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Guldhedsgatan 10A, Gothenburg, 405 30, Sweden.
| | - Marit Stockfelt
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Guldhedsgatan 10A, Gothenburg, 405 30, Sweden
- Rheumatology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Gunilla Larsson
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Guldhedsgatan 10A, Gothenburg, 405 30, Sweden
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, 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, Queen Square, London, UK
- UK Dementia Research Institute at UCL, London, UK
- Hong Kong Center for Neurodegenerative Diseases, Clear Water Bay, Hong Kong, China
- Winsconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
| | - Dag Leonard
- Department of Medical Sciences, Rheumatology, Uppsala University, Uppsala, Sweden
| | - Lars Rönnblom
- Department of Medical Sciences, Rheumatology, Uppsala University, Uppsala, Sweden
| | - Muna Saleh
- Division of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Christopher Sjöwall
- Division of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Helena Strevens
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Skåne University Hospital, Lund, Sweden
| | - Andreas Jönsen
- Department of Clinical Sciences Lund, Rheumatology, Lund University, Skåne University Hospital, Lund, Sweden
| | - Anders A Bengtsson
- Department of Clinical Sciences Lund, Rheumatology, Lund University, Skåne University Hospital, Lund, Sweden
| | - Estelle Trysberg
- Rheumatology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Maria Majcuk Sennström
- Department of Womens and Childrens Health, Division for Obstetrics and Gynecology, Karolinska University Hospital, Karolinska Institute, Stockholm, Sweden
| | - Agneta Zickert
- Department of Medicine Solna, Division of Rheumatology, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Elisabet Svenungsson
- Department of Medicine Solna, Division of Rheumatology, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Iva Gunnarsson
- Department of Medicine Solna, Division of Rheumatology, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Karin Christenson
- Department of Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Johan Bylund
- Department of Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Bo Jacobsson
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
- Department of Obstetrics and Gynecology, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Genetics and Bioinformatics, Domain of Health Data and Digitalisation, Institute of Public Health, Oslo, Norway
| | - Anna Rudin
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Guldhedsgatan 10A, Gothenburg, 405 30, Sweden
| | - Anna-Carin Lundell
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Guldhedsgatan 10A, Gothenburg, 405 30, Sweden
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Variation of Complement Protein Levels in Maternal Plasma and Umbilical Cord Blood during Normal Pregnancy: An Observational Study. J Clin Med 2022; 11:jcm11133611. [PMID: 35806894 PMCID: PMC9267899 DOI: 10.3390/jcm11133611] [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: 05/31/2022] [Revised: 06/19/2022] [Accepted: 06/20/2022] [Indexed: 11/17/2022] Open
Abstract
The complement system constitutes a crucial part of the innate immunity, mediating opsonization, lysis, inflammation, and elimination of potential pathogens. In general, there is an increased activity of the complement system during pregnancy, which is essential for maintaining the host’s defense and fetal survival. Unbalanced or excessive activation of the complement system in the placenta is associated with pregnancy complications, such as miscarriage, preeclampsia, and premature birth. Nonetheless, the actual clinical value of monitoring the activation of the complement system during pregnancy remains to be investigated. Unfortunately, normal reference values specifically for pregnant women are missing, and for umbilical cord blood (UCB), data on complement protein levels are scarce. Herein, complement protein analyses (C1q, C3, C4, C3d levels, and C3d/C3 ratio) were performed in plasma samples from 100 healthy, non-medicated and non-smoking pregnant women, collected during different trimesters and at the time of delivery. In addition, UCB was collected at all deliveries. Maternal plasma C1q and C3d/C3 ratio showed the highest mean values during the first trimester, whereas C3, C4, and C3d had rising values until delivery. We observed low levels of C1q and C4 as well as increased C3d and C3d/C3 ratio, particularly during the first trimester, as a sign of complement activation in some women. However, the reference limits of complement analyses applied for the general population appeared appropriate for the majority of the samples. As expected, the mean complement concentrations in UCB were much lower than in maternal plasma, due to the immature complement system in neonates.
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Gohr M, Jakobsen IM, Helmig RB, Stengaard-Pedersen K, Laurberg TB, Troldborg A. Improved pregnancy outcomes in systemic lupus erythematosus: A retrospective study of pregnancies from a single centre in Denmark from 2010-2020 compared with the period 1990-2010. Lupus 2022; 31:1202-1210. [PMID: 35676102 DOI: 10.1177/09612033221107538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Over the past decades new international guidelines recommend that pregnant Systemic lupus erythematosus (SLE) patients are monitored closely in a multi-professional team throughout pregnancy. The importance of low disease activity before pregnancy and continued treatment during pregnancy has been established. However, there is still a high risk of adverse pregnancy outcome (APO).The APO in a Danish SLE cohort was evaluated and compared with the results in a previous study cohort from the same centre and referral area. METHODS This retrospective cohort study used the local patient registry to identify pregnancies in SLE patients followed at the Department of Rheumatology, Aarhus University Hospital, Denmark, from January 2010 to October 2020. In total, 66 pregnancies were registered in 41 women. Data were compared with a previous retrospective study (1990-2010) from the same hospital. RESULTS Adverse pregnancy outcome occurred in 65% of pregnancies. Forty-seven pregnancies resulted in a live birth, while 15 ended in miscarriages. Compared to the 1990-2010 cohort, a numerical reduction in preterm deliveries (7.58% vs. 17.9%) and emergent caesarean (6.1% vs. 15.5%) was observed, although not reaching statistical significance (p = .07 in both cases). Further, a higher average birth weight (3045 g vs. 2870 g) as well as a higher number of pregnancies and live births per year were observed. Gestational hypertension was significantly reduced from 23.8% to 13.6% (p = .05). Significantly more patients were treated with prednisolone (66.7% vs 35.7%, p = .0002), hydroxychloroquine (6% vs. 73.4%, p < .0001) and acetylsalicylic acid (39.3% vs. 73.1%, p = .0001) in 2010-2020 compared to the 1990-2010. CONCLUSION We observed significant improvements in the frequency of some APOs in the recent 2010-2020 cohort compared with the previous cohort followed from 1990 to 2010. However, even though a specialized multi-professional team closely follows SLE patients through their pregnancies, pregnancy in SLE still carries a high risk of APO.
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Affiliation(s)
- Mette Gohr
- Department of Rheumatology, 11297Aarhus University Hospital, Aarhus, Denmark
| | - Iris Marie Jakobsen
- Department of Rheumatology, 53141Aalborg University Hospital, Aalborg, Denmark
| | - Rikke Bek Helmig
- Department of Gynecology and Obstetrics, 11297Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, 1006Aarhus University, Aarhus, Denmark
| | | | - Trine Bay Laurberg
- Department of Rheumatology, 11297Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, 1006Aarhus University, Aarhus, Denmark
| | - Anne Troldborg
- Department of Rheumatology, 11297Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, 1006Aarhus University, Aarhus, Denmark.,Department of Biomedicine, 1006Aarhus University, Aarhus, Denmark
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Makarm WK, Zaghlol RS, Kotb LI. Risk assessment score for adverse pregnancy outcome in systemic lupus erythematosus patients. EGYPTIAN RHEUMATOLOGY AND REHABILITATION 2022. [DOI: 10.1186/s43166-022-00131-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Systemic lupus erythematosus (SLE) is a chronic autoimmune multisystem dihe criteria for SLE according to thsease that mainly affects females of childbearing age. SLE still possesses risks during pregnancy that lead to poor maternal and fetal outcomes. The objectives of the study were to identify factors associated with unfavorable pregnancy outcomes and develop a predictive risk score for adverse pregnancy outcomes in patients with SLE.
Results
The main predictive factors associated with adverse pregnancy outcomes among lupus patients in multiple linear regression were an absence of remission for at least 6 months before conception, preexisting lupus nephritis, active disease at conception, C3 hypocomplementemia, and antiphospholipid antibody syndrome. Each predictor is assigned a weighted point score, and the sum of points represents the risk score. The area under the receiver operating characteristic curve (ROC) was 0.948 (95% confidence interval, 0.908–0.988), suggesting that the score had strong discriminatory power for adverse pregnancy outcomes.
Conclusions
In this study, a predictive model with a risk score classification for adverse pregnancy outcomes in SLE patients was developed. This could help rheumatologists identify high-risk pregnant patients for better disease monitoring and management, resulting in better maternal/fetal outcomes.
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Wang X, Li J, Liang Q, Ni X, Zhao R, Fu T, Ji J, Li L, Gu Z, Dong C. Reproductive concerns and contributing factors in women of childbearing age with systemic lupus erythematosus. Clin Rheumatol 2022; 41:2383-2391. [PMID: 35386049 DOI: 10.1007/s10067-022-06156-5] [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: 01/17/2022] [Revised: 03/21/2022] [Accepted: 03/25/2022] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Reproductive concerns are common in women of childbearing age with systemic lupus erythematosus (SLE) with inadequate disclosure. This study aimed to investigate the contributing factors of reproductive concerns and to evaluate their impact on health-related quality of life. METHODS One hundred eighty women of childbearing age with SLE were enrolled in this cross-sectional study in Affiliated Hospital of Nantong University from March 2021 to December 2021. A series of questionnaires were conducted: Systemic Lupus Erythematosus Disease Activity Index (SLEDAI), the Hospital Anxiety and Depression Scale (HADS), the Multidimensional Fatigue Inventory (MFI-20), Female Sexual Distress Scale-Revised (FSDS-R), Family Assessment Device (APGAR), the Medical Coping Modes Questionnaire (MCMQ), the Short-Form 36 (SF-36), and the Chinese version of Reproductive Concerns After Cancer (RCAC). Independent t test, one-way ANOVA, Mann-Whitney U test, Pearson/Spearman, and multiple linear stepwise regression were used to analyze the data. RESULTS The results indicated that female SLE patients were more concerned about the child's health and personal health than becoming pregnant, fertility potential, partner disclose and acceptance; SLE patients with the characteristics of living in rural residence, having no reproductive history, fearing unexpected pregnancy, sexual distress, and depression showed more serious fertility concerns. Meanwhile, most female SLE patients adopted active confrontation when facing reproductive concerns, and these patients were significantly lower in the dimension score of mental related quality of life. CONCLUSIONS Our study demonstrated that female SLE patients should be paid more attention to their fertility concerns and effective intervention measures should be carried out to relieve their reproductive concerns, so as to improve their long-term quality of life if their disease condition permits.
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Affiliation(s)
- Xingxin Wang
- Department of Rheumatology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, People's Republic of China
- Department of Pulmonary and Critical Care Medicine, Second Affiliated Hospital of Soochow University, Suzhou, 215004, People's Republic of China
| | - Jingjing Li
- Department of Emergency, Affiliated Hospital of Nantong University, Nantong, 226001, People's Republic of China
| | - Qian Liang
- Department of Rheumatology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, People's Republic of China
| | - Xiaowei Ni
- Department of Rheumatology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, People's Republic of China
| | - Rui Zhao
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, People's Republic of China
| | - Ting Fu
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, People's Republic of China
| | - Juan Ji
- Department of Rheumatology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, People's Republic of China
| | - Liren Li
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, 226001, People's Republic of China
| | - Zhifeng Gu
- Department of Rheumatology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, People's Republic of China.
| | - Chen Dong
- Department of Rheumatology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, People's Republic of China.
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Wang Y, Shu W, Lin S, Wu J, Jiang M, Li S, Liu C, Li R, Pei C, Ding Y, Wan J, Di W. Hollow Cobalt Oxide/Carbon Hybrids Aid Metabolic Encoding for Active Systemic Lupus Erythematosus during Pregnancy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2106412. [PMID: 35064740 DOI: 10.1002/smll.202106412] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/16/2021] [Indexed: 06/14/2023]
Abstract
A noninvasive, easy operation, and accurate diagnostic protocol is highly demanded to assess systemic lupus erythematosus (SLE) activity during pregnancy, promising real-time activity monitoring during the whole gestational period to reduce adverse pregnancy outcomes. Here, machine learning of serum metabolic fingerprints (SMFs) is developed to assess the SLE activity for pregnant women. The SMFs are directly extracted through a hollow-cobalt oxide/carbon (Co3 O4 /C)-composite-assisted laser desorption/ionization mass spectrometer (LDI MS) platform. The Co3 O4 /C composite owns enhanced light absorption, size-selective trapping, and better charge-hole separation, enabling improved ionization efficiency and selectivity for LDI MS detection toward small molecules. Metabolic fingerprints are collected from ≈0.1 µL serum within 1 s without enrichment and encoded by the optimized elastic net algorithm. The averaged area under the curve (AUC) value in the differentiation of active SLE from inactive SLE and healthy controls reaches 0.985 and 0.990, respectively. Further, a simplified panel based on four identified metabolites is built to distinguish SLE flares in pregnant women with the highest AUC value of 0.875 for the blind test. This work sets an accurate and practical protocol for SLE activity assessment during pregnancy, promoting precision diagnosis of disease status transitions in clinics.
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Affiliation(s)
- You Wang
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001, P. R. China
- Shanghai Key Laboratory of Gynecologic Oncology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001, P. R. China
| | - Weikang Shu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, P. R. China
| | - Sihan Lin
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001, P. R. China
- Shanghai Key Laboratory of Gynecologic Oncology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001, P. R. China
| | - Jiayue Wu
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001, P. R. China
- Shanghai Key Laboratory of Gynecologic Oncology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001, P. R. China
| | - Meng Jiang
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001, P. R. China
- Shanghai Key Laboratory of Gynecologic Oncology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001, P. R. China
| | - Shumin Li
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, P. R. China
| | - Chao Liu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, P. R. China
| | - Rongxin Li
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, P. R. China
| | - Congcong Pei
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, P. R. China
| | - Yajie Ding
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, P. R. China
| | - Jingjing Wan
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, P. R. China
| | - Wen Di
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001, P. R. China
- Shanghai Key Laboratory of Gynecologic Oncology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001, P. R. China
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Velásquez M, Peláez LF, Rojas M, Narváez-Sánchez R, Velásquez JA, Escudero C, San Martín S, Cadavid ÁP. Differences in Endothelial Activation and Dysfunction Induced by Antiphospholipid Antibodies Among Groups of Patients With Thrombotic, Refractory, and Non-refractory Antiphospholipid Syndrome. Front Physiol 2021; 12:764702. [PMID: 34925061 PMCID: PMC8675389 DOI: 10.3389/fphys.2021.764702] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 11/02/2021] [Indexed: 01/20/2023] Open
Abstract
Antiphospholipid syndrome (APS) is an autoimmune disorder characterized by pregnancy morbidity or thrombosis and persistent antiphospholipid antibodies (aPL) that bind to the endothelium and induce endothelial activation, which is evidenced by the expression of adhesion molecules and the production of reactive oxygen species (ROS) and subsequent endothelial dysfunction marked by a decrease in the synthesis and release of nitric oxide (NO). These endothelial alterations are the key components for the development of severe pathological processes in APS. Patients with APS can be grouped according to the presence of other autoimmune diseases (secondary APS), thrombosis alone (thrombotic APS), pregnancy morbidity (obstetric APS), and refractoriness to conventional treatment regimens (refractory APS). Typically, patients with severe and refractory obstetric APS exhibit thrombosis and are classified as those having primary or secondary APS. The elucidation of the mechanisms underlying these alterations according to the different groups of patients with APS could help establish new therapies, particularly necessary for severe and refractory cases. Therefore, this study aimed to evaluate the differences in endothelial activation and dysfunction induced by aPL between patients with refractory obstetric APS and other APS clinical manifestations. Human umbilical vein endothelial cells (HUVECs) were stimulated with polyclonal immunoglobulin-G (IgG) from different groups of patients n = 21), including those with primary (VTI) and secondary thrombotic APS (VTII) and refractory primary (RI+), refractory secondary (RII+), and non-refractory primary (NR+) obstetric APS. All of them with thrombosis. The expression of adhesion molecules; the production of ROS, NO, vascular endothelial growth factor (VEGF), and endothelin-1; and the generation of microparticles were used to evaluate endothelial activation and dysfunction. VTI IgG induced the expression of adhesion molecules and the generation of microparticles and VEGF. RI+ IgG induced the expression of adhesion molecules and decreased NO production. RII+ IgG increased the production of microparticles, ROS, and endothelin-1 and reduced NO release. NR+ IgG increased the production of microparticles and endothelin-1 and decreased the production of VEGF and NO. These findings reveal differences in endothelial activation and dysfunction among groups of patients with APS, which should be considered in future studies to evaluate new therapies, especially in refractory cases.
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Affiliation(s)
- Manuela Velásquez
- Grupo Reproducción, Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia
| | - Luisa F Peláez
- Grupo Reproducción, Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia
| | - Mauricio Rojas
- Grupo de Inmunología Celular e Inmunogenética, Facultad de Medicina, Universidad de Antioquia UdeA, Unidad de Citometría de Flujo, Sede de Investigación Universitaria, Medellín, Colombia
| | - Raúl Narváez-Sánchez
- Physiology and Biochemistry Research Group-PHYSIS, Faculty of Medicine, University of Antioquia UdeA, Medellín, Colombia
| | | | - Carlos Escudero
- Red Iberoamericana de Alteraciones Vasculares Asociadas a TRanstornos del EMbarazo (RIVATREM), Chillán, Chile.,Vascular Physiology Laboratory, Basic Sciences Department, Faculty of Sciences, Universidad del Bio-Bio, Chillán, Chile.,Group of Research and Innovation in Vascular Health (GRIVAS Health), Chillán, Chile
| | - Sebastián San Martín
- Red Iberoamericana de Alteraciones Vasculares Asociadas a TRanstornos del EMbarazo (RIVATREM), Chillán, Chile.,Group of Research and Innovation in Vascular Health (GRIVAS Health), Chillán, Chile.,Biomedical Research Center School of Medicine, Universidad de Valparaíso, Valparaíso, Chile
| | - Ángela P Cadavid
- Grupo Reproducción, Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia.,Red Iberoamericana de Alteraciones Vasculares Asociadas a TRanstornos del EMbarazo (RIVATREM), Chillán, Chile.,Grupo de Investigación en Trombosis, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia
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10
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Lian XJ, Fan L, Xia X, Huang XM, Ye HJ, Yu XQ, Chen HT, Chen W. Fetal and maternal outcome in patients with active lupus nephritis: comparison between new-onset and pre-existing lupus nephritis. BMC Nephrol 2021; 22:419. [PMID: 34933676 PMCID: PMC8691084 DOI: 10.1186/s12882-021-02633-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 12/09/2021] [Indexed: 12/24/2022] Open
Abstract
Background This study aimed to investigate fetal and maternal outcomes in women with active lupus nephritis (LN). Specifically, we compared women who had new-onset LN and those with pre-existing LN during pregnancy. Methods Patients with active LN during pregnancy were divided into the new-onset group (LN first occurred during pregnancy) and the pre-existing group (a history of LN) on the basis of the onset time of LN. Data on clinical features, laboratory findings, and pregnancy outcome were collected and analyzed between the two groups. Multivariate logistic regression analysis was used to compare the effects of active LN on adverse pregnancy outcomes. Results We studied 73 pregnancies in 69 women between 2010 and 2019. Of these, 38 pregnancies were in the pre-existing LN group and 35 were in the new-onset group. Patients with pre-existing LN had a higher risk of composite adverse fetal outcomes than those with new-onset LN [adjusted odds ratio (ORs), 44.59; 95% confidence interval (CI), 1.21–1664.82; P = 0.039]. However, the two groups had similar adverse maternal outcomes (ORs, 1.24; 95% CI, 0.36–4.29). Serum albumin and proteinuria significantly improved after pregnancy (P < 0.001). Kaplan–Meier analysis showed that the long-term renal outcome was similar between the two groups. Conclusions Pregnant patients with pre-existing LN were associated with a higher risk of composite adverse fetal outcomes than those with new-onset LN. However, these two groups of patients had similar adverse maternal outcomes. The long-term renal outcomes were not different after pregnancy between these two groups. Supplementary Information The online version contains supplementary material available at 10.1186/s12882-021-02633-2.
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Affiliation(s)
- Xing-Ji Lian
- Department of Nephrology, The First Affiliated Hospital, NHC Key Laboratory of Nephrology, Guangdong Provincial Key Laboratory of Nephrology, Sun Yat-sen University, No. 58 Zhongshan Er Lu, Guangzhou, 510080, China
| | - Li Fan
- Department of Nephrology, The First Affiliated Hospital, NHC Key Laboratory of Nephrology, Guangdong Provincial Key Laboratory of Nephrology, Sun Yat-sen University, No. 58 Zhongshan Er Lu, Guangzhou, 510080, China
| | - Xi Xia
- Department of Nephrology, The First Affiliated Hospital, NHC Key Laboratory of Nephrology, Guangdong Provincial Key Laboratory of Nephrology, Sun Yat-sen University, No. 58 Zhongshan Er Lu, Guangzhou, 510080, China
| | - Xia-Min Huang
- Department of Nephrology, The First Affiliated Hospital, NHC Key Laboratory of Nephrology, Guangdong Provincial Key Laboratory of Nephrology, Sun Yat-sen University, No. 58 Zhongshan Er Lu, Guangzhou, 510080, China
| | - Hong-Jian Ye
- Department of Nephrology, The First Affiliated Hospital, NHC Key Laboratory of Nephrology, Guangdong Provincial Key Laboratory of Nephrology, Sun Yat-sen University, No. 58 Zhongshan Er Lu, Guangzhou, 510080, China
| | - Xue-Qing Yu
- Department of Nephrology, The First Affiliated Hospital, NHC Key Laboratory of Nephrology, Guangdong Provincial Key Laboratory of Nephrology, Sun Yat-sen University, No. 58 Zhongshan Er Lu, Guangzhou, 510080, China.,Division of Nephrology, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Hai-Tian Chen
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-sen University, No. 58 Zhongshan Er Lu, Guangzhou, 510080, Guangdong, China.
| | - Wei Chen
- Department of Nephrology, The First Affiliated Hospital, NHC Key Laboratory of Nephrology, Guangdong Provincial Key Laboratory of Nephrology, Sun Yat-sen University, No. 58 Zhongshan Er Lu, Guangzhou, 510080, China.
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11
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Multidisciplinary Unit Improves Pregnancy Outcomes in Women with Rheumatic Diseases and Hereditary Thrombophilias: An Observational Study. J Clin Med 2021; 10:jcm10071487. [PMID: 33916674 PMCID: PMC8038315 DOI: 10.3390/jcm10071487] [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: 02/17/2021] [Revised: 03/19/2021] [Accepted: 03/31/2021] [Indexed: 01/03/2023] Open
Abstract
Rheumatic diseases (RD) and hereditary thrombophilias (HT) can be associated with high-risk pregnancies. This study describes obstetric outcomes after receiving medical care at a multidisciplinary consultation (MC) and compares adverse neonatal outcomes (ANOs) before and after medical care at an MC. This study is a retrospective observational study among pregnant women with RD and HT treated at an MC of a university hospital (southern Spain) from 2012 to 2018. Absolute risk reduction (ARR) and number needed to treat (NNT) were calculated. A total of 198 pregnancies were registered in 143 women (112 with RD, 31 with HT), with 191 (96.5%) pregnancies without ANOs and seven (3.5%) pregnancies with some ANOs (five miscarriages and two foetal deaths). Results previous to the MC showed 60.8% of women had more than one miscarriage, with 4.2% experiencing foetal death. MC reduced the ANO rate by AAR = 60.1% (95%CI: 51.6-68.7%). The NNT to avoid one miscarriage was 1.74 (95%CI: 1.5-2.1) and to avoid one foetal death NNT = 35.75 (95CI%: 15.2-90.9). A total of 84.8% of newborns and 93.2% of women did not experience any complication. As a conclusion, the follow-up of RD or HT pregnant women in the MC drastically reduced the risk of ANOs in this population with a previous high risk.
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12
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Stockfelt M, Larsson G, Engström H, Puttonen H, Zetterberg H, Blennow K, Sjöwall C, Strevens H, Jönsen A, Bengtsson AA, Majczuk Sennström M, Zickert A, Svenungsson E, Gunnarsson I, Trysberg E, Jacobsson B, Hultgård Ekwall AK, Christenson K, Bylund J, Svensson MND, Lundell AC. Activated low-density granulocytes in peripheral and intervillous blood and neutrophil inflammation in placentas from SLE pregnancies. Lupus Sci Med 2021; 8:8/1/e000463. [PMID: 33685997 PMCID: PMC7942245 DOI: 10.1136/lupus-2020-000463] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/26/2021] [Accepted: 03/01/2021] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Women with SLE face an increased risk of adverse pregnancy outcomes compared with healthy women, but the underlying immunological mechanisms are unknown. Given the recognised association of neutrophil activation with SLE pathogenesis, we examined whether there is increased neutrophil activation and inflammation in blood and placenta in SLE relative to healthy pregnancy. METHODS At delivery, peripheral blood, maternal-derived intervillous blood and placentas were collected from 12 SLE and 10 healthy control pregnancies. The proportion of low-density granulocytes (LDGs) and the activation status of LDG and normal-density granulocytes were examined with flow cytometry. The chemokines CXCL8 and CXCL1 were quantified with a cytometric bead-based assay and interferon alpha (IFNα) protein levels with a Simoa method. IFNα-stimulated maternal-derived decidual stromal cells were examined for CXCL8 gene expression with qPCR. A pathologist, blinded to the patient background, examined all placentas. RESULTS Women with SLE had significantly higher proportions of LDG in peripheral blood compared with controls (p=0.02), and LDG in both peripheral and intervillous blood were more activated in SLE relative to healthy pregnancies (peripheral blood: p=0.002 and intervillous blood: p=0.05). There were higher levels of CXCL8 and CXCL1 in intervillous compared with peripheral blood in women with SLE (p=0.004 and p=<0.0001, respectively) but not in controls. In SLE pregnancy, IFNα was detectable in 6 out of 10 intervillous blood samples but only in one control. Stimulation with IFNα upregulated CXCL8 gene expression in decidual stromal cells from both SLE and healthy pregnancy. Histological chorioamnionitis was present in 6 out of 12 placentas from women with SLE and in 1 out of 10 controls. CONCLUSIONS In women with SLE, locally produced chemokines in the placenta are increased and may attract and activate neutrophils. This in turn could contribute to placental inflammation and dysfunction and increased risk of placenta-related pregnancy complications.
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Affiliation(s)
- Marit Stockfelt
- Dept of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Gunilla Larsson
- Dept of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Hanna Engström
- Dept of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Henri Puttonen
- Department of Pathology, Sahlgrenska University Hospital, Goteborg, Sweden
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden.,Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden.,UK Dementia Research, Institute at UCL, London, UK.,Department of Neurodegenerative Disease, UCL Institute of Neurology, London, UK
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden.,Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Christopher Sjöwall
- Division of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Helena Strevens
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Skåne University Hospital, Lund, Sweden
| | - Andreas Jönsen
- Department of Clinical Sciences, Rheumatology, Lund University, Lund, Sweden
| | - Anders A Bengtsson
- Department of Clinical Sciences, Rheumatology, Lund University, Lund, Sweden
| | - Maria Majczuk Sennström
- Department of Womens and Childrens Health, Division for Obstetrics and Gynecology, Karolinska University Hospital, Karolinska Institute, Stockholm, Sweden
| | - Agneta Zickert
- Division of Rheumatology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Elisabet Svenungsson
- Division of Rheumatology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Iva Gunnarsson
- Division of Rheumatology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Estelle Trysberg
- Dept of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Bo Jacobsson
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Goteborg, Sweden.,Region Västra Götaland, Sahlgrenska University Hospital, Department of Obstetrics and Gynecology, Gothenburg, Sweden.,Department of Genetics and Bioinformatics, Domain of Health Data and Digitalisation, Institute of Public Health, Oslo, Norway
| | - Anna-Karin Hultgård Ekwall
- Dept of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Karin Christenson
- Department of Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska Academy at the University of Gothenburg, Goteborg, Sweden
| | - Johan Bylund
- Department of Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska Academy at the University of Gothenburg, Goteborg, Sweden
| | - Mattias N D Svensson
- Dept of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Anna-Carin Lundell
- Dept of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
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Frodlund M, Walhelm T, Dahle C, Sjöwall C. Longitudinal Analysis of Anti-cardiolipin and Anti-β2-glycoprotein-I Antibodies in Recent-Onset Systemic Lupus Erythematosus: A Prospective Study in Swedish Patients. Front Med (Lausanne) 2021; 8:646846. [PMID: 33732724 PMCID: PMC7959716 DOI: 10.3389/fmed.2021.646846] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 02/05/2021] [Indexed: 12/19/2022] Open
Abstract
Background: Anti-phospholipid syndrome (APS) and systemic lupus erythematous (SLE) are autoimmune disorders that often co-occur. Anti-phospholipid antibodies (aPL) are typical of both conditions and may be associated with vascular events and pregnancy-related morbidities. Whereas, aPL-screening is mandatory for individuals with suspected SLE, the clinical value of longitudinal aPL analyses in established SLE is unclear. Methods: We investigated the occurrence and variation of IgG/IgA/IgM anti-cardiolipin (aCL) and anti-β2-glycoprotein-I (anti-β2GPI) antibodies, using both the manufacturer's cut-off and a cut-off based on the 99th percentile of 400 apparently healthy donors, in recent-onset SLE. Furthermore, we evaluated the relationships between aPL levels and SLE/APS manifestations, as well as the pharmacotherapy. Patients with SLE who met validated classification criteria were included in this prospective study (N = 54). Samples were obtained at 0, 6, 12, 24, 36, 48, 60, 72, 84, and 96 months after SLE diagnosis. Results: Depending on the cut-off applied, 61.1 or 44.4% showed a positive result for at least one aPL isotype or the lupus anticoagulant test over time. Median values for all six aPL isotypes numerically decreased from inclusion to last follow-up, but none of the isotypes met statistical significance. Seroconversion (from positive to negative, or the opposite direction) was occasionally seen for both aCL and anti-β2GPI. IgA and IgM anti-β2GPI were the most common isotypes, followed by IgM aCL. Presence of IgG aCL associated significantly with myocardial infarction and miscarriage, and IgG/IgA anti-β2GPI with miscarriage. Conclusion: aPL were common during the first years of SLE. Even though the levels fluctuated over time, the patients tended to remain aPL positive or negative. Repeated aPL testing in the absence of new symptoms seems to be of uncertain value in patients with recent-onset SLE.
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Affiliation(s)
- Martina Frodlund
- Division of Inflammation and Infection/Rheumatology, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Tomas Walhelm
- Division of Inflammation and Infection/Rheumatology, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Charlotte Dahle
- Division of Inflammation and Infection/Clinical Immunology and Transfusion Medicine, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Christopher Sjöwall
- Division of Inflammation and Infection/Rheumatology, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
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