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1.
Rev Med Interne ; 44(8): 410-422, 2023 Aug.
Article in French | MEDLINE | ID: mdl-37270380

ABSTRACT

Gastrointestinal tract involvement in systemic sclerosis concerns more than 90% of patients but is of heterogeneous clinical expression. It can involve the entire intestinal tract and be responsible for multifactorial malnutrition, which is frequent in this disease. It is a major source of deterioration in the quality of life and can even be life-threatening. Management is complex and multidisciplinary, ranging from simple hygienic and dietary measures, to specialized endoscopic or surgical interventional procedures, also including medical treatments, particularly proton pump inhibitors and prokinetics, with potential side effects. Ongoing research for new diagnostic and therapeutic tools promises to improve the management and prognosis of these patients.


Subject(s)
Gastrointestinal Diseases , Malnutrition , Scleroderma, Systemic , Humans , Quality of Life , Scleroderma, Systemic/complications , Scleroderma, Systemic/diagnosis , Scleroderma, Systemic/therapy , Gastrointestinal Tract , Proton Pump Inhibitors , Gastrointestinal Diseases/diagnosis , Gastrointestinal Diseases/epidemiology , Gastrointestinal Diseases/etiology
2.
Rev Med Interne ; 42(12): 825-831, 2021 Dec.
Article in French | MEDLINE | ID: mdl-34462153

ABSTRACT

INTRODUCTION: Pulmonary arterial hypertension (PAH) is a severe complication of connective tissue disease (CTD). Data on use of prostanoids in this particular subset of patients are lacking. We aimed to describe the characteristics of patients with PAH-CTD treated with prostanoids and the outcomes under treatment. METHODS: In this multicenter retrospective study, all patients treated with prostanoids since 2006 were included. Data on PAH and CTD were collected at the time of prostanoid introduction and under treatment. RESULTS: Twenty-one patients were included, of whom 20 (95%) had limited cutaneous systemic sclerosis. Nineteen patients were treated with oral monotherapy or combination before addition of prostanoid. Treprostinil was the most used molecule (57% of patients). At the time of prostanoid introduction, 90% of patients were considered at high risk for death. Among patients who had right heart catheterization during follow-up, there was no significant difference in haemodynamics. No extrarespiratory worsening of the CTD was reported. The 1-year survival under prostanoid was 62%. In univariate analysis, NYHA functional class was associated with survival under treatment. CONCLUSION: This study provides original data on use of prostanoids in a cohort consisting mainly of systemic sclerosis. It underlines the difficulty to achieve a standardized assessment in this subset of patients. Safety profile was comparable with data reported in idiopathic PAH.


Subject(s)
Connective Tissue Diseases , Hypertension, Pulmonary , Pulmonary Arterial Hypertension , Connective Tissue Diseases/complications , Connective Tissue Diseases/drug therapy , Connective Tissue Diseases/epidemiology , Humans , Hypertension, Pulmonary/drug therapy , Hypertension, Pulmonary/epidemiology , Hypertension, Pulmonary/etiology , Prostaglandins , Retrospective Studies
3.
Rev Med Interne ; 42(3): 154-161, 2021 Mar.
Article in French | MEDLINE | ID: mdl-33485699

ABSTRACT

INTRODUCTION: The medical treatment of preeclampsia is well structured in its acute phase but the required follow-up with patients in post-partum is discussed. However, preeclampsia is associated with an increased risk of cardiovascular morbi-mortality in the long term. In order to optimize the post-partum treatment, a care program has been developed for these patients in the city of Nantes, France. This includes a check-up of the cardiovascular risks at a day hospital. Our study presents the first results of this program. METHODS: The study included 134 patients who were diagnosed with preeclampsia between October 2016 and January 2019 in the Nantes area, France, and took part in the program within the year following their childbirth. A descriptive analysis was first carried out and then a multivariate logistic regression model was used to investigate the risk factors for persistent high blood pressure after preeclampsia. RESULTS: The study detected 28 cases of persistent hypertension (20.9%), 34 cases of obesity (25.3%) and 1 case of diabetes. Hypertension was predominantly diastolic, mild and sometimes masked (35.7%). In a third of the cases (32.1%), the hypertension was secondary. High blood pressure was found to be more frequent in older patients (OR: 2.26; 95% CI: 1.25-4.11, p=0.072), patients from sub-Saharan Africa (OR: 11.52; 95% CI: 2.67-49.86, p=0.01) and multiparous patients (OR: 7.82; 95% CI: 1.15-53.21, p=0.035). CONCLUSION: The study confirmed that this care program enables an earlier detection and therefore treatment of the cardiovascular risk factors of these young women.


Subject(s)
Diabetes Mellitus , Hypertension , Pre-Eclampsia , Aged , Female , Humans , Hypertension/epidemiology , Hypertension/therapy , Obesity , Pre-Eclampsia/diagnosis , Pre-Eclampsia/epidemiology , Pre-Eclampsia/therapy , Pregnancy , Risk Factors
4.
Rev Med Interne ; 42(2): 86-92, 2021 Feb.
Article in French | MEDLINE | ID: mdl-33129579

ABSTRACT

INTRODUCTION: Pharmaceutical prescription in systemic sclerosis is guided by national and international recommendations. This study's primary objective was to describe and analyze these prescriptions among patients of our cohort. We also aimed to assess drug compliance among our patients. METHODS: This is a monocentric observational study on two cohorts of patients with systemic sclerosis; a primary cohort comprising ambulatory patients, who were prospectively included, with exhaustive prescription's data collection; and a secondary cohort included patients asked to fill in a self-questionnaire on treatment compliance. RESULTS: The main cohort included 157 patients, including 31 cases of diffuse systemic sclerosis. A vasodilator drug for Raynaud's phenomenon was prescribed in 75 patients (47.9%) and a specific treatment for pulmonary arterial hypertension in 10 patients (6.4%). Immuno-modulators/immunosuppressants was prescribed in 62 patients (39.5%), who received prednisone (n=37, 23.6%), mycophenolate mofetil (n=14, 8.9%), hydroxychloroquine (n=12, 7.6%) and colchicine (n=22, 14%). Treatment for "gastro-intestinal tract involvement" was prescribed for 106 patients (67.5%) and treatment of a scleroderma renal crisis with an angiotensin-converting enzyme inhibitor for 6 patients (3.8%). Among the 42 patients in the secondary cohort, 21.4% reported a good compliance, mostly older patients (P=0.045) or those who had not experienced adverse events (P=0.009). CONCLUSION: This study provides original real-life data illustrating the heterogeneity of prescription habits in systemic sclerosis. As previously reported, treatment compliance was insufficient.


Subject(s)
Pharmaceutical Preparations , Raynaud Disease , Scleroderma, Localized , Scleroderma, Systemic , Angiotensin-Converting Enzyme Inhibitors , Humans , Raynaud Disease/drug therapy , Raynaud Disease/epidemiology , Scleroderma, Systemic/drug therapy , Scleroderma, Systemic/epidemiology
5.
J Med Vasc ; 45(1): 28-40, 2020 Feb.
Article in English | MEDLINE | ID: mdl-32057323

ABSTRACT

Venous thromboembolism (VTE) is a common disease complication in cancer patients and the second cause of death after cancer progression. VTE management and prophylaxis are critical in cancer patients, but effective therapy can be challenging because these patients are at higher risk of VTE recurrence and bleeding under anticoagulant treatment. Numerous published studies report inconsistent implementation of existing evidence-based clinical practice guidelines (CPG), including underutilization of thromboprophylaxis, and wide variability in clinical practice patterns across different countries and various practitioners. This review aims to summarize the 2019 ITAC-CME evidence-based CPGs for treatment and prophylaxis of cancer-related VTE, which include recommendations on the use of direct oral anticoagulants specifically in cancer patients. The guidelines underscore the gravity of developing VTE in cancer and recommend the best approaches for treating and preventing cancer-associated VTE, while minimizing unnecessary or over-treatment. Greater adherence to the 2019 ITAC guidelines could substantially decrease the burden of VTE and improve survival of cancer patients.


Subject(s)
Anticoagulants/administration & dosage , Neoplasms/complications , Practice Guidelines as Topic/standards , Venous Thromboembolism/drug therapy , Administration, Oral , Anticoagulants/adverse effects , Consensus , Guideline Adherence/standards , Hemorrhage/chemically induced , Humans , Neoplasms/blood , Neoplasms/diagnosis , Recurrence , Risk Factors , Societies, Medical/standards , Treatment Outcome , Venous Thromboembolism/blood , Venous Thromboembolism/diagnosis , Venous Thromboembolism/etiology
6.
BMC Pulm Med ; 18(1): 73, 2018 May 18.
Article in English | MEDLINE | ID: mdl-29776440

ABSTRACT

BACKGROUND: Pleuroparenchymal fibroelastosis (PPFE) is a very rare interstitial lung disease (ILD) characterized by progressive fibrotic lesions of the visceral pleura and the sub-pleural parenchyma, affecting predominantly the upper lobes. PPFE may occur in different contextes like bone marrow or lung transplantations, but also in the context of telomeropathy with mutations of telomerase reverse transcriptase (TERT), telomerase RNA component (TERC) or regulator of telomere elongation helicase 1 (RTEL1) genes. PPFE-like lesions have recently been described in patients with connective tissue disease (CTD)-related ILD. We report here the first detailed case of PPFE associated to systemic sclerosis (SSc) in a woman free of telomeropathy mutations. CASE PRESENTATION: A caucasian 46 year old woman was followed for SSc in a limited form with anti-centromere Ab since 1998, and seen in 2008 for a routine visit. Her SSc was stable, and she had no respiratory signs. Pulmonary function tests showed an isolated decreased cTLCO at 55.9% (of predicted value). Cardiac ultrasonography was normal. Thoracic CT-scan showed upper lobes predominant mild and focal pleural and subpleural thickenings, suggestive of PPFE, with a slight worsening at 8 years of follow-up. She remained clinically stable. Biology only found a moderate and stable peripheral thrombocytopenia, and sequencing analysis did not find any mutations in TERT and TERC genes. CONCLUSIONS: ILD is frequent in SSc but isolated PPFE has never been described so far. In our case, PPFE is not related to telomeropathy, has indolent outcome and seems to have good prognosis. PPFE might be an extremely rare form of SSc-related ILD, although a fortuitous association remains possible.


Subject(s)
Lung Diseases, Interstitial , Parenchymal Tissue , Pleura , Pleural Diseases , Scleroderma, Limited , Scleroderma, Systemic , Antibodies, Antinuclear/blood , Disease Progression , Female , Humans , Lung Diseases, Interstitial/diagnosis , Lung Diseases, Interstitial/immunology , Middle Aged , Parenchymal Tissue/diagnostic imaging , Parenchymal Tissue/pathology , Pleura/diagnostic imaging , Pleura/pathology , Pleural Diseases/diagnosis , Pleural Diseases/immunology , Respiratory Function Tests/methods , Scleroderma, Limited/diagnosis , Scleroderma, Limited/immunology , Scleroderma, Systemic/diagnosis , Scleroderma, Systemic/immunology , Scleroderma, Systemic/physiopathology , Tomography, X-Ray Computed/methods
7.
Proc Natl Acad Sci U S A ; 115(17): E4091-E4100, 2018 04 24.
Article in English | MEDLINE | ID: mdl-29632168

ABSTRACT

Glucocorticoids (GCs) are secreted in an ultradian, pulsatile pattern that emerges from delays in the feedforward-feedback interaction between the anterior pituitary and adrenal glands. Dynamic oscillations of GCs are critical for normal cognitive and metabolic function in the rat and have been shown to modulate the pattern of GC-sensitive gene expression, modify synaptic activity, and maintain stress responsiveness. In man, current cortisol replacement therapy does not reproduce physiological hormone pulses and is associated with psychopathological symptoms, especially apathy and attenuated motivation in engaging with daily activities. In this work, we tested the hypothesis that the pattern of GC dynamics in the brain is of crucial importance for regulating cognitive and behavioral processes. We provide evidence that exactly the same dose of cortisol administered in different patterns alters the neural processing underlying the response to emotional stimulation, the accuracy in recognition and attentional bias toward/away from emotional faces, the quality of sleep, and the working memory performance of healthy male volunteers. These data indicate that the pattern of the GC rhythm differentially impacts human cognition and behavior under physiological, nonstressful conditions and has major implications for the improvement of cortisol replacement therapy.


Subject(s)
Brain/metabolism , Cognition/physiology , Emotions/physiology , Glucocorticoids/metabolism , Hydrocortisone , Adult , Humans , Hydrocortisone/administration & dosage , Hydrocortisone/pharmacokinetics , Male
9.
Ann Dermatol Venereol ; 145(3): 166-172, 2018 Mar.
Article in French | MEDLINE | ID: mdl-29229192

ABSTRACT

BACKGROUND: The aim of this study was to describe special features of patients with systemic sclerosis (SSc) diagnosed after the age of 70. PATIENTS AND METHODS: This is a retrospective study of patients aged above 70 years at the time of diagnosis of SSc and followed at an internal medicine unit between 2000 and 2015. Co-morbidities and clinical characteristics were analyzed, as well as survival at 1, 2 and 3 years. RESULTS: Of 246 patients, 27 (11%) were included (89% women, 96% Caucasians, age 78.3±4.5 years). Synchronous cancer was noted in 3 patients. SSc was mostly limited cutaneous only (24/27), with telangiectasia (63%), gastroesophageal reflux (59%) and digital ulcers (22%), and was associated with anti-centromere antibody (69%). Interstitial lung disease was not frequent (29%). Pulmonary arterial hypertension (PAH) was suspected at diagnosis of SSc in 14 cases (52%), but only 5 patients had undergone heart catheterization, with severe PAH in 3 cases. Survival at 1 and 3 years was 85.2% and 66.7%, and was worse in the case of suspected PAH, at 78.6% and 57.1% respectively. CONCLUSION: Cases of SSc diagnosed after 70 years are mostly limited cutaneous forms. Suspicion of PAH is frequent, and PAH may be the main initial sign of the disease for patients at this age. There may be association with synchronous cancer. Survival is poor.


Subject(s)
Internal Medicine , Late Onset Disorders/diagnosis , Scleroderma, Systemic/diagnosis , Skin Neoplasms/diagnosis , Aged , Aged, 80 and over , Female , Follow-Up Studies , France/epidemiology , Gastroesophageal Reflux/complications , Humans , Late Onset Disorders/mortality , Lung Diseases, Interstitial/complications , Male , Retrospective Studies , Risk Factors , Scleroderma, Systemic/complications , Scleroderma, Systemic/mortality , Skin Neoplasms/complications , Skin Neoplasms/mortality , Skin Ulcer/complications , Telangiectasis/complications
10.
Rev Med Interne ; 37(10): 708-713, 2016 Oct.
Article in French | MEDLINE | ID: mdl-26869295

ABSTRACT

INTRODUCTION: Jaccoud's arthropathy (JA) is a chronic and non-erosive deforming arthropathy, usually affecting the hands. JA pathophysiology is poorly known but involves periarticular structures such as tendons and the joint capsule. JA is associated with various conditions including the connective tissue disease, especially systemic lupus erythematosis. JA has been rarely described and studied in systemic sclerosis. CASE REPORTS: We report the clinical histories of 3 patients with systemic sclerosis (ScS) who developed JA. One patient had a systemic limited disease and the 2 others a cutaneous limited disease ; mean age of the patients was 79.3 years. Systemic sclerosis was diagnosed respectively 19, 1 and 21 years prior to the development of JA. One of the 3 patients had a past clinical history of discoid lupus. For 1 out of the 3 patients, JA appeared whereas the ScS was completely stable. The disease was still active in the 2 remaining patients, with concurrent pulmonary hypertension diagnosis. Deformities increased during years (Z thumbs, ulnar deviation), leading to mild to severe disability. No benefit from either prednisone (n=2) or a combination of prednisone and methotrexate (n=1) was obtained. CONCLUSION: We described 3 cases of Jaccoud's arthropathy among our scleroderma cohort of 296 patients (1%). This arthropathy worsens hand functional disability. Its pathophysiology is unknown and optimal therapeutic approach remains to establish.


Subject(s)
Hand Deformities, Acquired/diagnosis , Joint Diseases/diagnosis , Scleroderma, Systemic/diagnosis , Aged , Aged, 80 and over , Female , Hand Deformities, Acquired/diagnostic imaging , Hand Deformities, Acquired/etiology , Humans , Joint Diseases/diagnostic imaging , Joint Diseases/etiology , Scleroderma, Systemic/complications , Scleroderma, Systemic/diagnostic imaging
11.
Rev Med Interne ; 37(5): 321-6, 2016 May.
Article in French | MEDLINE | ID: mdl-26320365

ABSTRACT

PURPOSE: Clinical reasoning and treatment challenges within the scope of general practice led to the development of an internal medicine assistance line provided by Nantes University Hospital. The primary outcome of this study was to describe callers' profile, their requests and answers provided. METHODS: A prospective, cross-sectional, observational, descriptive study was undertaken. For each call were identified the calling physician, her/his specialty and work setting, the call's object and adequacy, the answer provided, the time needed to connect with the assistance line, the time devoted by the internal medicine physician to provide an answer to the request, and whether the assistance line prevented a visit to the emergency room. Each calling physician was then called back to obtain demographic and professional characteristics, and data relating to the call and to the assistance line. RESULTS: Sixty-three days were analyzed and 276 calls identified. The 237 identified calling physicians were mainly females (54%, n=93), with a mean age of 46 years, graduated from Nantes University (65%, n=86), practicing ambulatory general medicine (69%, n=164) in Loire-Atlantique department area (82%, n=176) for a mean duration of 15 years. Calls were mostly associated with diagnostic challenges (61%, n=166) concerning clinical issues (57%, n=155). A sole telephone advice was the main type of answer provided (56%, n=147) and a visit to the emergency room was prevented for 17% of calls. CONCLUSION: The assistance line activity is adequate with its missions and seems to facilitate patients' healthcare delivery advocating for the development of similar structures in other units. Improvements relating to the information, availability and physicians' training should be considered.


Subject(s)
General Practice , Hotlines , Internal Medicine , Telemedicine , Telephone , Adult , Aged , Clinical Decision-Making/methods , Cross-Sectional Studies , Disease , Female , France/epidemiology , General Practice/methods , General Practice/organization & administration , General Practice/standards , Hotlines/statistics & numerical data , Humans , Internal Medicine/methods , Internal Medicine/organization & administration , Internal Medicine/standards , Male , Middle Aged , Telemedicine/methods , Telemedicine/standards
13.
J Mal Vasc ; 39(3): 161-8, 2014 May.
Article in English | MEDLINE | ID: mdl-24746736

ABSTRACT

UNLABELLED: Cancer is associated with venous thromboembolism in 20% of patients. In such patients, thrombosis is difficult to treat, associated with bleeding, recurrence, and death. Specific treatments for venous thromboembolism in cancer are recommended. Guidelines have been implemented in many countries and international guidelines have been recently developed. We evaluated the adhesion to national French guidelines via a survey of cancer patients treated for venous thromboembolism. METHODS: A national cross-sectional observational study evaluated the adhesion to guidelines in hospitalized patients. Good clinical practice was defined as initial 10-day treatment with injectable molecules followed by long-term treatment with low molecular weight heparin for at least 3 months. Demographic data, cancer type, stage, treatment, risk factors and type of thrombosis, were recorded. RESULTS: Five patients were included in 47 centers. Overall adhesion to guidelines was present in 59% (55-63%) of patients (295/500). During initial treatment, adhesion was high (487/496; 98%) but dropped (296/486; 62%) during the long-term maintenance. In patients with renal insufficiency, only a fourth of them received the adequate treatment. A majority of patients had metastatic disease (64%). Cancer sites were gastro-intestinal (25%), gynecologic (23%), pulmonary (21%), hematological (14%), urologic (10%), or other (8%). Lung and hematological malignancies were significantly associated with the highest and lowest rates of adhesion. CONCLUSION: Adhesion to national guidelines for treatment of venous thromboembolism in cancer is not optimal. Good compliance is observed during initial treatment, but drops after 10 days, underlying the need for further education to achieve a better implementation on a national level.


Subject(s)
Anticoagulants/therapeutic use , Medication Adherence/statistics & numerical data , Neoplasms/complications , Practice Guidelines as Topic , Venous Thromboembolism/prevention & control , Aged , Aged, 80 and over , Cross-Sectional Studies , Drug Utilization/statistics & numerical data , Factor Xa Inhibitors/therapeutic use , Female , Follow-Up Studies , France/epidemiology , Heparin/therapeutic use , Heparin, Low-Molecular-Weight/therapeutic use , Humans , Male , Middle Aged , Neoplasms/blood , Organ Specificity , Pulmonary Embolism/epidemiology , Pulmonary Embolism/etiology , Pulmonary Embolism/prevention & control , Renal Insufficiency, Chronic/complications , Risk Factors , Thrombophilia/drug therapy , Thrombophilia/etiology , Time Factors , Venous Thromboembolism/epidemiology , Venous Thromboembolism/etiology
14.
Rev Med Interne ; 35(1): 28-38, 2014 Jan.
Article in French | MEDLINE | ID: mdl-24070793

ABSTRACT

Whatever their aetiology, monoclonal gammopathies can be associated to several clinical features. Mechanisms are various and sometimes unknown. Skin is frequently involved and may represent a challenging diagnosis. Indeed, skin manifestations are either the presenting features and isolated, or at the background of a systemic syndrome. Our objective was to review the various skin manifestations that have been associated with monoclonal gammopathies.


Subject(s)
Paraproteinemias/complications , Skin Diseases/etiology , Amyloidosis/complications , Amyloidosis/metabolism , Autoantibodies/adverse effects , Autoantibodies/metabolism , Autoimmune Diseases/complications , Cryoglobulinemia/complications , Cryoglobulinemia/immunology , Cutis Laxa/etiology , Cutis Laxa/immunology , Humans , Immunoglobulins/metabolism , POEMS Syndrome/complications , POEMS Syndrome/immunology , Paraproteinemias/immunology , Paraproteinemias/metabolism , Skin/immunology , Skin/metabolism , Skin Diseases/immunology , Skin Diseases, Vesiculobullous/immunology
16.
Br J Dermatol ; 167(5): 1138-44, 2012 Nov.
Article in English | MEDLINE | ID: mdl-23039171

ABSTRACT

BACKGROUND: Imatinib mesylate is a potent inhibitor of platelet-derived growth factor and transforming growth factor-ß signalling pathways which may play a role in systemic sclerosis (SSc)-associated skin changes. OBJECTIVES: We aimed primarily at assessing the efficacy of imatinib mesylate in scleroderma skin fibrosis. METHODS: We performed a phase II double-blinded trial on patients with scleroderma with either morphoea involving > 20% of body surface area or SSc with extensive skin involvement: modified Rodnan Skin Score (mRSS) ≥ 20/51. Each patient was randomized to receive either imatinib mesylate 400 mg or placebo daily for a total of 6 months, and then was followed up 6 months after therapy discontinuation. Skin fibrosis was assessed by mRSS and measurement of the dermal thickness using skin biopsies performed at inclusion and at 6 months of treatment. In addition, quality of life (Dermatology Life Quality Index and modified Health Assessment Questionnaire for Scleroderma) was recorded at each visit, and pulmonary function before and after intervention. RESULTS: Twenty-eight patients were included in the study with a mean age of 48·9 years (range 30-71): 25 had a diagnosis of a SSc and three of diffuse cutaneous scleroderma. Demographic data, frequency of organ involvement of SSc and mRSS were comparable between groups. At 6 months, the proportion of variation of mRSS from inclusion was not statistically significantly different between the two groups (median +0·10 in imatinib group vs. -0·16 in placebo group, P = 0·098). Similarly, changes in dermal thickness, quality of life and diffusion capacity for carbon monoxide were not significantly different between groups. CONCLUSIONS: This study failed to demonstrate the efficacy of imatinib 400 mg daily to improve skin fibrosis of diffuse scleroderma after 6 months of treatment based on validated outcome measurements.


Subject(s)
Piperazines/therapeutic use , Protein Kinase Inhibitors/therapeutic use , Pyrimidines/therapeutic use , Scleroderma, Diffuse/drug therapy , Skin/pathology , Adult , Aged , Benzamides , Double-Blind Method , Female , Fibrosis/drug therapy , Humans , Imatinib Mesylate , Male , Middle Aged , Platelet-Derived Growth Factor/metabolism , Quality of Life , Scleroderma, Diffuse/metabolism , Transforming Growth Factor beta/metabolism , Treatment Outcome
18.
Pathol Biol (Paris) ; 60(6): 387-91, 2012 Dec.
Article in English | MEDLINE | ID: mdl-22265124

ABSTRACT

This study aimed to evaluate, improve and compare the performances of two anti-double-stranded DNA (dsDNA) detection kits, differing by their affinity, in discriminating between active and non-active systemic lupus erythematosus (SLE). Eighty-two anti-nuclear antibody positive sera (45 patients) were tested by two anti-dsDNA commercial quantitative assays (Fidis™, Farrzyme™). All the patients fulfilled at least four of the revised American College of Rheumatology criteria. SLE disease activity was assessed using a modified SLEDAI to remove anti-dsDNA descriptors. When using the manufacturers' cut-offs, no difference in the frequency of positive results was found with respect to disease activity, with Fidis™. On the contrary, with Farrzyme™, a significantly higher frequency of positive sera was found in active SLE patients. Nonetheless, poor performances were observed for both tests. With thresholds defined by ROC methodology, 212IU/mL for Fidis™ (Se: 83.9%, Sp: 86.3%), and 68.8IU/mL for Farrzyme (Se: 71.0%, Sp: 96.1%), a great improvement of the accuracy of the two methods was observed. Moreover, the better specificity and pLR, obtained after optimization of the Farrzyme™ test, could also be obtained with the Fidis™ assay by using a higher threshold than that obtained after optimization of the test. We concluded that when using manufacturers' cut-offs, the two assays appeared to be of poor clinical usefulness in the determination of disease activity. A great improvement was observed using higher thresholds. Moreover, a good concordance could be observed between the two assays (κ=0.764).


Subject(s)
Antibodies , DNA/blood , DNA/immunology , Immunoassay/methods , Lupus Erythematosus, Systemic/blood , Adolescent , Adult , Aged , Antibodies/immunology , Antibodies, Antinuclear/blood , Antibody Affinity , Child , Female , Humans , Immunoglobulin G/immunology , Male , Middle Aged , Reagent Kits, Diagnostic , Sensitivity and Specificity
19.
Pathol Biol (Paris) ; 60(2): 127-39, 2012 Apr.
Article in French | MEDLINE | ID: mdl-20116938

ABSTRACT

The balance in the production and release of cytokines "Th1/Th2" or "Th17" or "regulatory T" is one of the key events in the pathogenesis of systemic sclerosis (SSc). Specifically, the Th2 cytokine response, characterized by the production of IL-4, IL-10 and TGF-ß, leads to tissue fibrosis in patients with SSc. Many studies have shown the importance of analyzing the levels of cytokines as diagnostic or prognostic markers in the blood or in situ in patients with SSc. The restoration of the Th1/Th2/Th17/Treg balance will contribute to the effectiveness of treatment and the use of cytokine modulators may therefore be considered in developing new therapeutic approaches.


Subject(s)
Cytokines/metabolism , Scleroderma, Systemic/metabolism , Cell Communication/physiology , Cytokines/blood , Cytokines/classification , Cytokines/physiology , Humans , Models, Biological , Scleroderma, Systemic/blood , Scleroderma, Systemic/etiology , Scleroderma, Systemic/immunology , Th1 Cells/metabolism , Th1 Cells/physiology , Th1-Th2 Balance , Th2 Cells/metabolism , Th2 Cells/physiology
20.
Rheumatol Int ; 32(10): 3285-90, 2012 Oct.
Article in English | MEDLINE | ID: mdl-21805174

ABSTRACT

Systemic lupus erythematosus (SLE) and small-sized vessel vasculitis are usually two distinguishable autoimmune diseases. However, a vasculitis may be found in the course SLE but rarely corresponds to an ANCA-associated vasculitis (AAV). We report four cases of de novo SLE associated with AAV, our aim being to discuss the clinical significance of this association. We included four patients fulfilling the criteria for both SLE and AAV and followed in two different university hospitals between 1996 and 2009. In light of a 20-year literature review (25 described clinical cases), we discussed the etiopathogeny of such an association. All patients presented a severe renal involvement (creatininemia ranging from 120 to 370 µmol/l) and thrombopenia (ranging from 45,000 to 137,000 platelets/mm(3)). The other main clinical symptoms were arthritis (n = 3), serositis (n = 2) and intra-alveolar hemorrhage (n = 2). An inflammatory syndrome was noticed at diagnosis in all cases. ANCAs were MPO-ANCAs in all cases. Two out of these four patients were also diagnosed with antiphospholipid syndrome. The frequency of this association seems not fortuitous. Although the etiopathogenic mechanisms of such an association remain to be more precisely described, several clinical, histological and immunological features support the hypothesis of the existence of a SLE-AAV overlapping syndrome. Moreover, clinicians must be aware of such an overlapping syndrome, notably because its initial presentation can be very severe.


Subject(s)
Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis/complications , Autoimmunity , Lupus Erythematosus, Systemic/complications , Adult , Aged , Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis/blood , Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis/diagnosis , Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis/immunology , Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis/therapy , Arthritis/etiology , Biomarkers/blood , Female , Hemorrhage/etiology , Humans , Kidney Diseases/etiology , Lung Diseases/etiology , Lupus Erythematosus, Systemic/blood , Lupus Erythematosus, Systemic/diagnosis , Lupus Erythematosus, Systemic/immunology , Lupus Erythematosus, Systemic/therapy , Prognosis , Serositis/etiology , Severity of Illness Index , Syndrome , Thrombocytopenia/etiology , Young Adult
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