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1.
Eur Heart J Cardiovasc Imaging ; 25(2): 257-266, 2024 Jan 29.
Artigo em Inglês | MEDLINE | ID: mdl-37597177

RESUMO

AIMS: Premature coronary artery disease (CAD) is an aggressive disease with multiple recurrences mostly related to new coronary lesions. This study aimed to compare coronary plaque characteristics of individuals with premature CAD with those of incidental plaques found in matched individuals free of overt cardiovascular disease, using coronary computed tomography angiography (CCTA). METHODS AND RESULTS: Of 1552 consecutive individuals who underwent CCTA, 106 individuals with history of acute or stable obstructive CAD ≤45 years were matched by age, sex, smoking status, cardiovascular heredity, and dyslipidaemia with 106 controls. CCTA were analysed for Coronary Artery Disease Reporting and Data System score, plaque composition, and high-risk plaque (HRP) features, including spotty calcification, positive remodelling, low attenuation, and napkin-ring sign. The characteristics of 348 premature CAD plaques were compared with those of 167 incidental coronary plaques of matched controls. The prevalence of non-calcified plaques was higher among individuals with premature CAD (65.1 vs. 30.2%, P < 0.001), as well as spotty calcification (42.5 vs. 17.9%, P < 0.001), positive remodelling (41.5 vs. 9.4%, P < 0.001), low attenuation (24.5 vs. 3.8%, P < 0.001), and napkin-ring sign (1.9 vs. 0.0%). They exhibited an average of 2.2 (2.7) HRP, while the control group displayed 0.4 (0.8) HRP (P < 0.001). Within a median follow-up of 24 (16, 34) months, individuals with premature CAD and ischaemic recurrence (n = 24) had more HRP [4.3 (3.9)] than those without ischaemic recurrence [1.5 (1.9)], mostly non-calcified with low attenuation and positive remodelling. CONCLUSION: Coronary atherosclerosis in individuals with premature CAD is characterized by a high and predominant burden of non-calcified plaque and unusual high prevalence of HRP, contributing to disease progression with multiple recurrences. A comprehensive qualitative CCTA assessment of plaque characteristics may further risk stratify our patients, beyond cardiovascular risk factors.


Assuntos
Doença da Artéria Coronariana , Placa Aterosclerótica , Humanos , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/epidemiologia , Doença da Artéria Coronariana/patologia , Angiografia Coronária/métodos , Placa Aterosclerótica/diagnóstico por imagem , Placa Aterosclerótica/patologia , Tomografia Computadorizada por Raios X , Coração , Angiografia por Tomografia Computadorizada/métodos , Fatores de Risco , Vasos Coronários/patologia , Valor Preditivo dos Testes
2.
Bone ; 157: 116343, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35104665

RESUMO

Increased interleukin-6 (IL-6) has been observed in the bone tissue of fibrous dysplasia of bone/McCune-Albright syndrome (FD/MAS) and is possibly involved in the increased bone destruction and bone pain characterizing this disease. The TOCIDYS trial was a randomized, placebo-controlled, 1 year, cross-over, proof-of-concept trial, conducted in patients not responding to bisphosphonates, using monthly intra-venous tocilizumab (a monoclonal antibody to the IL-6 receptor) at 8 mg/kg or a matching placebo for 6 months. Over the following 6 months, they received tocilizumab if they first had placebo, and vice-versa. We measured change in serum CTX after 6 months of treatment, compared with baseline (primary endpoint). Other endpoints were the change in bone pain, change in P1NP, bone alkaline phosphatase, osteocalcin and ICTP, and variation of quality of life. The analysis relied on ANOVA, with sequence of treatment, period and treatment as factors and accounting for a potential carry-over effect. We have randomized 8 patients with FD/MAS in each sequence who all completed the first 6 months treatment period. During the second 6 months period, 3 patients stopped therapy, so the efficacy analysis set included 13 patients. We observed no significant change in serum CTX and other biochemical markers of bone turnover between the tocilizumab and placebo groups. There was no significant change in the level of bone pain on tocilizumab, although 3 patients had a sharp decrease in pain while on active drug, with progressive relapse on placebo for 2 of them, but with some degree of improvement in a few patients while on placebo. The SF-36 quality of life scale was not significantly changed. We conclude that tocilizumab does not decrease bone turnover in FD/MAS when administered in patients who fail to respond to bisphosphonates. Tocilizumab does not reduce bone pain in most patients, but a substantial effect in a subset cannot be ruled out in this trial powered for markers but not for pain.


Assuntos
Displasia Fibrosa Óssea , Displasia Fibrosa Poliostótica , Biomarcadores , Osso e Ossos , Difosfonatos/farmacologia , Difosfonatos/uso terapêutico , Método Duplo-Cego , Displasia Fibrosa Óssea/tratamento farmacológico , Displasia Fibrosa Poliostótica/tratamento farmacológico , Humanos , Interleucina-6 , Dor , Qualidade de Vida
3.
Can J Cardiol ; 37(8): 1263-1266, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33675936

RESUMO

The new 5-year ventricular arrhythmia (VA) occurrence risk model is a major breakthrough for arrhythmia risk stratification in the challenging population of patients with arrhythmogenic right ventricular cardiomyopathy (ARVC). In the original study, the model resulted in a 20.6% reduction in implantable cardioverter-defibrillator (ICD) placement compared with the 2015 consensus, for the same protection level. However, only internal validation was performed, limiting generalisation. We externally validated the model in a European tertiary care cohort of 128 patients with ARVC with restrictive indications for primary prevention ICD placement. Overall, 74% were men, none had VA history, and a single patient had an ICD at baseline. Median age at diagnosis was 38 years (interquartile range [IQR] 28-50). During a median follow-up of 7.8 years (IQR 6.1-9.7), 15 patients (12%) experienced VA. The model provided good discrimination, with a C-index for 5-year VA risk prediction of 0.84 (95% confidence interval 0.74-0.93). However, the model led to an overestimation of the 5-year VA risk when applying thresholds < 50%. With a < 10% predicted risk, no patient showed VA. With a 7.5% predicted risk, the ICD:VA ratio was 6.3 vs 3.4 in the original study. The model still outperformed the 2015 International Task Force Consensus. Overall, in a relatively large European ARVC cohort with restrictive indications for ICD placement, the ARVC model for VA prediction successfully identified ARVC patients with VA during follow-up. Yet, our study underscores the need for careful threshold selection, considering the model's associated risk overestimation in low- to intermediate-risk patients.


Assuntos
Arritmias Cardíacas/etiologia , Displasia Arritmogênica Ventricular Direita/complicações , Modelos Cardiovasculares , Medição de Risco , Adulto , Arritmias Cardíacas/prevenção & controle , Morte Súbita Cardíaca/prevenção & controle , Desfibriladores Implantáveis , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Seleção de Pacientes , Estudos Retrospectivos
4.
JACC Cardiovasc Interv ; 13(10): 1198-1206, 2020 05 25.
Artigo em Inglês | MEDLINE | ID: mdl-32438990

RESUMO

OBJECTIVES: This study sought to evaluate the prognostic value of the SYNTAX (SYNergy between PCI with TAXUS and Cardiac Surgery) scores in patients undergoing percutaneous coronary intervention (PCI) for multivessel coronary disease with infarct-related cardiogenic shock (CS). BACKGROUND: The prognostic value of the SYNTAX score in this high-risk setting remains unclear. METHODS: The CULPRIT-SHOCK (Culprit Lesion Only PCI versus Multivessel PCI in Cardiogenic Shock) trial was an international, open-label trial, where patients presenting with infarct-related CS and multivessel disease were randomized to a culprit-lesion-only or an immediate multivessel PCI strategy. Baseline SYNTAX score was assessed by a central core laboratory and categorized as low SYNTAX score (SS ≤22), intermediate SYNTAX score (2232). Adjudicated endpoints of interest were the 30-day risk of death or renal replacement therapy (RRT) and 1-year death. Associations between baseline SYNTAX score and outcomes were assessed using multivariate logistic regression. RESULTS: Pre-PCI SYNTAX score was available in 624 patients, of whom 263 (42.1%), 207 (33.2%) and 154 (24.7%) presented with low, intermediate and high SYNTAX score, respectively. A stepwise increase in the incidence of adverse events was observed from low to intermediate and high SYNTAX score for the 30-day risk of death or RRT and the 1-year risk of death (p < 0.001, for all). After multiple adjustments, intermediate and high SYNTAX score remained strongly associated with 30-day risk of death or renal replacement therapy and 1-year risk of all-cause death. There was no significant interaction between SYNTAX score and the coronary revascularization strategy for any outcomes. CONCLUSIONS: In patients presenting with multivessel disease and infarct-related CS, the SYNTAX score was strongly associated with 30-day death or RRT and 1-year mortality.


Assuntos
Regras de Decisão Clínica , Doença da Artéria Coronariana/terapia , Infarto do Miocárdio/terapia , Intervenção Coronária Percutânea , Choque Cardiogênico/etiologia , Idoso , Doença da Artéria Coronariana/complicações , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/mortalidade , Stents Farmacológicos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/diagnóstico por imagem , Infarto do Miocárdio/etiologia , Infarto do Miocárdio/mortalidade , Intervenção Coronária Percutânea/efeitos adversos , Intervenção Coronária Percutânea/instrumentação , Intervenção Coronária Percutânea/mortalidade , Valor Preditivo dos Testes , Recidiva , Insuficiência Renal/etiologia , Insuficiência Renal/mortalidade , Insuficiência Renal/terapia , Terapia de Substituição Renal , Medição de Risco , Fatores de Risco , Choque Cardiogênico/diagnóstico , Choque Cardiogênico/mortalidade , Acidente Vascular Cerebral/etiologia , Acidente Vascular Cerebral/mortalidade , Fatores de Tempo , Resultado do Tratamento
5.
RMD Open ; 5(2): e000897, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31413865

RESUMO

Background: To comparatively investigate the differential effect of second-line tumour necrosis factor inhibitors (TNFis) versus other biological agents on cardiovascular disease (CVD) risk-associated biomarkers in patients with rheumatoid arthritis (RA). Methods: We evaluated the serum levels of lipoprotein-associated apoproteins ApoA1 and ApoB100 and lipoprotein(a) (Lp(a)) and the leptin/adiponectin ratio (LAR) as an insulin resistance proxy in patients with RA from the Rotation Or Change (ROC) trial treated with either a second-line TNFi or another biologic (tocilizumab (TCZ), rituximab or abatacept) at baseline and week 24. We compared the changes in biomarker levels in each group and according to the EULAR response. Results: Of the 300 patients enrolled in the ROC trial, 203 were included in the study, including 96 in the second-line TNFi group and 107 in the other biological group. The measured biomarkers did not deteriorate between baseline and week 24 regardless of the group. A greater improvement in the LAR was noted in the other biological group (median (IQR) -0.12 ng/µg (-0.58 to 0.31) vs 0.04 (-0.19 to 0.43), p=0.033), and a greater improvement in the Lp(a) level was observed following treatment with TCZ than with a TNFi (-0.05 g/L (-0.11 to -0.01) vs -0.01 g/L (-0.02 to 0.01), p<0.001). When considering the patients' responses to treatment, improved biomarkers were mainly observed in the EULAR responders in each treatment group. Conclusions: TNFis and non-TNFis were neutral on improved CVD risk-associated biomarkers in patients with RA insufficiently controlled by TNFis. TCZ could be associated with a better improvement concerning Lp(a) and LAR than TNFis. This improvement could be related to a good therapeutic response, thereby supporting the need of good control of RA. Trial registration number: ClinicalTrials.gov Identifier NCT01000441, registered on 22 October 2009.


Assuntos
Artrite Reumatoide/tratamento farmacológico , Fatores Biológicos/uso terapêutico , Doenças Cardiovasculares/sangue , Inibidores do Fator de Necrose Tumoral/uso terapêutico , Abatacepte/uso terapêutico , Adiponectina/metabolismo , Idoso , Anticorpos Monoclonais Humanizados/uso terapêutico , Apolipoproteína A-I/efeitos dos fármacos , Apolipoproteína B-100/efeitos dos fármacos , Artrite Reumatoide/complicações , Artrite Reumatoide/metabolismo , Biomarcadores/sangue , Feminino , Humanos , Resistência à Insulina/fisiologia , Leptina/metabolismo , Lipoproteína(a)/efeitos dos fármacos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Rituximab/uso terapêutico
6.
Eur J Heart Fail ; 21(6): 792-800, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30790397

RESUMO

BACKGROUND: Previous studies suggested that genetic status affects the clinical course of arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D) patients. The aim of this study was to compare the outcome of desmoglein-2 (DSG2) mutation carriers to those who carry the plakophilin-2 (PKP2) mutation, the most common ARVC/D-associated gene. METHODS AND RESULTS: Consecutive ARVC/D patients carrying a pathogenic mutation in PKP2 or DSG2 were selected from a national ARVC/D registry. The cumulative freedom from sustained ventricular arrhythmia and cardiac transplantation/death from heart failure (HF) during follow-up was assessed, compared between PKP2 and DSG2, and predictors for ventricular arrhythmia and HF events determined. Overall, 118 patients from 78 families were included: 27 (23%) carried a DSG2 mutation and 91 (77%) a PKP2 mutation. There were no significant differences between DSG2 and PKP2 mutation carriers concerning gender, proband status, age at diagnosis, T-wave inversion, or right ventricular dysfunction at baseline. DSG2 patients displayed more frequent epsilon wave (37% vs. 17%, P = 0.048) and left ventricular dysfunction at diagnosis (54% vs. 10%, P < 0.001). During a median follow-up of 5.6 years (2.5-16), DSG2 and PKP2 mutation carriers displayed a similar risk of sustained ventricular arrhythmia (log-rank P = 0.20), but DSG2 mutation carriers were at higher risk of transplantation/HF-related death (log-rank P < 0.001). The presence of a DSG2 mutation vs. PKP2 mutation was a predictor of transplantation/HF-related death in univariate Cox analysis (P = 0.0005). CONCLUSIONS: In this multicentre cohort, DSG2 mutation carriers were found to be at high risk of end-stage HF compared to PKP2 mutation carriers, supporting careful haemodynamic monitoring of these patients. The benefit of early HF treatment needs to be assessed in DSG2 carriers.


Assuntos
DNA/genética , Desmogleína 2/genética , Insuficiência Cardíaca/genética , Mutação , Placofilinas/genética , Adulto , Displasia Arritmogênica Ventricular Direita/complicações , Displasia Arritmogênica Ventricular Direita/genética , Displasia Arritmogênica Ventricular Direita/metabolismo , Análise Mutacional de DNA , Desmogleína 2/metabolismo , Eletrocardiografia , Feminino , Seguimentos , Insuficiência Cardíaca/etiologia , Insuficiência Cardíaca/metabolismo , Heterozigoto , Humanos , Masculino , Pessoa de Meia-Idade , Linhagem , Fenótipo , Placofilinas/metabolismo , Estudos Retrospectivos , Adulto Jovem
8.
Joint Bone Spine ; 82(2): 109-15, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25557658

RESUMO

UNLABELLED: Previous studies showed that the control of inflammation by biological therapies has a positive effect on bone in inflammatory diseases. The objective of this study was to assess the effects on bone mineral density (BMD) and bone remodeling of an anti-IL-6 monoclonal antibody (tocilizumab (TCZ)) in patients with rheumatoid arthritis (RA). METHODS: One hundred and three patients (75% women, 52±12years) with active RA were treated with TCZ 8mg/kg + methotrexate (MTX) every 4 weeks during 48 weeks. Hip and lumbar spine BMDs were measured at baseline and after 48 weeks by dual energy X-ray absorptiometry (DXA). Pro-collagen serum type I N-terminal propeptide (PINP), serum C-terminal cross-linked telopeptide of type I collagen (CTX-I), and serum levels of total Dickkopf-1 (Dkk-1) and sclerostin were assessed at baseline, 12 and 48 weeks. RESULTS: BMD was available for 76 patients at baseline and at the end of the study. There was no change in lumbar spine and hip BMD over 48 weeks. Serum PINP increased from baseline by 22% (P≤0.001) and 19% (P≤0.001) at week 12 and week 48, whereas serum CTX-I remained stable. Serum DKK-1 significantly decreased from baseline by -31% (P≤0.001) and -25% (P=0.025) at week 12 and 48. Similar results were observed in the patients receiving low doses of oral corticosteroids. CONCLUSION: In this 1-year prospective open study, patients with active RA receiving TCZ and MTX had no change in BMD, a decrease in serum DKK-1 and an increase in bone formation marker.


Assuntos
Anti-Inflamatórios/farmacologia , Anticorpos Monoclonais Humanizados/farmacologia , Artrite Reumatoide/tratamento farmacológico , Densidade Óssea/efeitos dos fármacos , Remodelação Óssea/efeitos dos fármacos , Peptídeos e Proteínas de Sinalização Intercelular/sangue , Adulto , Anti-Inflamatórios/uso terapêutico , Anticorpos Monoclonais Humanizados/uso terapêutico , Produtos Biológicos/farmacologia , Produtos Biológicos/uso terapêutico , Biomarcadores/sangue , Colágeno Tipo I/sangue , Método Duplo-Cego , Feminino , Glucocorticoides/farmacologia , Glucocorticoides/uso terapêutico , Humanos , Interleucina-6/antagonistas & inibidores , Masculino , Metotrexato/uso terapêutico , Pessoa de Meia-Idade
9.
Ann Rheum Dis ; 73(8): 1508-14, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23723317

RESUMO

BACKGROUND: The licensed dose of rituximab in rheumatoid arthritis (RA) is two doses of 1000 mg given 2 weeks apart. A lower dose has never been specifically studied in patients with an inadequate response to anti-tumour necrosis factor (TNF) agents. OBJECTIVE: To compare the efficacy and safety of rituximab repeat treatment with two doses (1000 mg×1 and 1000 mg×2) following initial treatment with 1000 mg×2. METHODS: We set up an open-label, prospective, multicentre, non-inferiority study comprising a non-controlled period (24 weeks) followed by a randomised controlled period (weeks 24-104) in patients with RA and an inadequate response to anti-TNF agents. All patients received one course of rituximab (1000 mg×2) with methotrexate. At week 24, patients achieving a EULAR response (moderate or good) were randomised to rituximab retreatment at 1000 mg×1 (Arm A) or 1000 mg×2 (Arm B). The primary objective measure was disease activity in 28 joints C-reactive protein (DAS28-CRP) area under the curve (AUC) over 104 weeks with a non-inferiority margin defined by 20% (444) of the mean DAS28-CRP AUC (mean±SD 2218±967) of the reference data. RESULTS: The intent-to-treat and per-protocol (PP) populations comprised 143 (A/B: 70/73) and 100 (A/B: 51/49) patients, respectively. The adjusted mean difference in DAS28-CRP AUC (PP) was 51.4 (95% CI -131.2 to 234), demonstrating non-inferiority between arms A and B. The overall rituximab safety profile was similar with both retreatment regimens. CONCLUSIONS: Following a clinical response to a first course of rituximab in RA at the licensed dose of 1000 mg×2, retreatment with rituximab at 1000 mg×1 results in efficacy outcomes that are non-inferior to those achieved with retreatment at 1000 mg×2. CLINICALTRIALSGOV REGISTRATION NUMBER: NCT01126541.


Assuntos
Anticorpos Monoclonais Murinos/administração & dosagem , Anticorpos Monoclonais Murinos/efeitos adversos , Antirreumáticos/administração & dosagem , Antirreumáticos/efeitos adversos , Artrite Reumatoide/tratamento farmacológico , Adulto , Idoso , Biomarcadores , Relação Dose-Resposta a Droga , Feminino , Seguimentos , Humanos , Quimioterapia de Indução/métodos , Masculino , Pessoa de Meia-Idade , Infecções Oportunistas/prevenção & controle , Estudos Prospectivos , Retratamento/métodos , Rituximab , Resultado do Tratamento
10.
Arthritis Rheum ; 65(9): 2253-61, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23740460

RESUMO

OBJECTIVE: Migration of B cells from peripheral blood to the synovium in patients with rheumatoid arthritis (RA) may predict clinical response to rituximab (RTX). We undertook this study to investigate whether serum levels of chemokines involved in B cell trafficking are correlated with blood levels of memory B cells or serum levels of B cell activation biomarkers before B cell depletion and whether chemokine levels predict RTX responsiveness. METHODS: Blood B cell subsets were analyzed by flow cytometry (CD27, IgD), and serum B cell activation biomarkers (rheumatoid factor, anti-cyclic citrullinated peptide, free light chains, IgG, IgA, IgM, and BAFF) were measured in 208 RA patients and 70 control subjects. Serum CCL19, CXCL12, and CXCL13 chemokine levels in patients and controls were determined by enzyme-linked immunosorbent assay. The first course of RTX was administered to RA patients, and the response was evaluated at week 24 according to European League Against Rheumatism (EULAR) criteria. Results were expressed as the odds ratio (OR) and 95% confidence interval (95% CI). RESULTS: Levels of all chemokines were increased in RA patients compared with controls, and levels were inversely correlated with CD27+ memory B cell frequency. CCL19 and CXCL13 levels correlated with levels of 6 serum B cell biomarkers and 4 serum B cell biomarkers, respectively. By univariate analysis, the CCL19 level was positively associated with EULAR response (OR 1.43 [95% CI 1.08-1.90], P = 0.01). By multivariate analysis, the CCL19 level was predictive of a response to RTX (OR 1.48 [95% CI 1.06-2.06], P = 0.02), but this did not persist after adjustment for autoantibody status. CONCLUSION: CXCL13 and CCL19 reflect blood B cell disturbances and their levels correlate with those of other serum B cell biomarkers. CXCL13 and CCL19 are, therefore, surrogate measures for serum B cell biomarkers in RA. Serum CCL19 measurement is a new hallmark of the B cell-mediated RA subtype and may predict clinical response to RTX.


Assuntos
Anticorpos Monoclonais Murinos/uso terapêutico , Antirreumáticos/uso terapêutico , Artrite Reumatoide/imunologia , Linfócitos B/imunologia , Quimiocina CCL19/sangue , Adulto , Idoso , Artrite Reumatoide/sangue , Artrite Reumatoide/tratamento farmacológico , Subpopulações de Linfócitos B/imunologia , Quimiocinas/sangue , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fator Reumatoide/sangue , Rituximab
11.
Rheumatology (Oxford) ; 52(4): 636-41, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23264555

RESUMO

OBJECTIVE: To determine whether a functional single-nucleotide polymorphism in the B-cell activating factor (BAFF) gene correlates with the response to treatment with rituximab (RTX) in RA. METHODS: SMART is a randomized open trial (NCT01126541) assessing two strategies of re-treatment in patients responding to 1-g infusion of RTX with MTX on days 1 and 15 after failure, intolerance or contraindication to TNF blockers. Among the 224 patients included, 115 provided informed consent, could be genotyped and were included in an ancillary study of SMART assessing European League Against Rheumatism (EULAR) response rate after the first course of RTX according to BAFF-871C>T polymorphism. Baseline clinical factors (patients and disease characteristics) and biologic factors (ESR, CRP, RF, anti-citrullinated peptide antibodies, serum immunoglobulins) were collected. Univariate analyses were performed to assess whether BAFF-871C>T polymorphism was associated with EULAR response at week 24. Results with P < 0.15 obtained in univariate analyses were then included in multivariate analysis adjusted on DAS28 level. RESULTS: Ninety-three patients (81%) were responders, of whom 31 (27%) were good responders. CC genotype was significantly associated with a higher response rate [92% of responders vs 64% for TT genotype, odds ratio (OR) = 6.9; 95% CI 1.6, 29.6; P = 0.03]. These results were also confirmed in RF-positive patients (96% vs 58%, P = 0.006). In multivariate analysis, C allele carriage was independently associated with response to RTX (OR = 4.1; 95% CI 1.3, 12.7; P = 0.017). CONCLUSION: The BAFF-871C>T polymorphism seems to influence the response to RTX in RA patients after failure or intolerance to TNF blockers.


Assuntos
Anticorpos Monoclonais Murinos/uso terapêutico , Antirreumáticos/uso terapêutico , Artrite Reumatoide/tratamento farmacológico , Fator Ativador de Células B/genética , Polimorfismo de Nucleotídeo Único/genética , Idoso , Anticorpos Monoclonais Murinos/efeitos adversos , Antirreumáticos/efeitos adversos , Artrite Reumatoide/genética , Artrite Reumatoide/imunologia , Fator Ativador de Células B/sangue , Feminino , Estudos de Associação Genética , Genótipo , Humanos , Masculino , Pessoa de Meia-Idade , Rituximab , Resultado do Tratamento
12.
Arthritis Rheum ; 63(12): 3692-701, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22127692

RESUMO

OBJECTIVE: To examine blood B cell subsets in patients with rheumatoid arthritis (RA) prior to B cell depletion therapy and to assess their potential as predictors of clinical response to rituximab (RTX). METHODS: Blood B cell subsets were assessed by flow cytometry in 208 RA patients included in an RTX retreatment study (assessed prior to RTX treatment) and in 47 age-matched controls. Expression of BAFF receptor (BAFF-R) on B cells and serum B cell biomarkers was also measured. B cell subsets and BAFF-R expression were compared between RA patient and control populations. Univariate and multivariate analyses were performed to identify baseline factors associated with a European League Against Rheumatism response 24 weeks after 1 cycle of RTX. RESULTS: Mean ± SD counts of both CD27- naive and CD27+ memory B cells were decreased in RA patients (188.6 ± 121.4/mm(3)) compared with controls (257.3 ± 154.1/mm(3)) (P = 0.001) and were partially restored in patients treated with methotrexate (MTX) plus anti-tumor necrosis factor compared with patients treated with MTX alone. Within the CD27+ memory B cells, the CD27+IgD- switched memory subtype was selectively decreased, irrespective of treatment. The frequency of CD27+ memory B cells correlated inversely with levels of several B cell activation biomarkers in RA. Serum BAFF level and BAFF-R expression was comparable in RA patients and controls. A low baseline CD27+ memory B cell frequency was associated with a greater clinical response to RTX (odds ratio 0.97 [95% confidence interval 0.95-0.99], P = 0.0015). CONCLUSION: In B cell depletion therapy-naive RA patients, a low frequency of CD27+ memory B cells correlated with levels of serum B cell activation biomarkers and may predict response to RTX. These results suggest that low memory B cell frequency may be indicative of a B cell-driven RA subtype that is more sensitive to B cell depletion therapy.


Assuntos
Anticorpos Monoclonais Murinos/uso terapêutico , Antirreumáticos/uso terapêutico , Artrite Reumatoide/tratamento farmacológico , Artrite Reumatoide/patologia , Subpopulações de Linfócitos B/patologia , Adulto , Idoso , Artrite Reumatoide/metabolismo , Receptor do Fator Ativador de Células B/metabolismo , Subpopulações de Linfócitos B/metabolismo , Estudos de Casos e Controles , Estudos Transversais , Relação Dose-Resposta a Droga , Feminino , Humanos , Depleção Linfocítica , Masculino , Metotrexato/uso terapêutico , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Rituximab , Resultado do Tratamento , Membro 7 da Superfamília de Receptores de Fatores de Necrose Tumoral/metabolismo
13.
Transplantation ; 92(11): 1244-51, 2011 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-22067312

RESUMO

BACKGROUND: Early posttransplant steroid withdrawal may increase the risk of acute rejection and the occurrence of subclinical acute rejection (SCAR). We assessed the feasibility and safety of early steroid withdrawal in low-risk patients receiving cyclosporine A (CsA) and the impact of optimization of mycophenolic acid exposure on steroid withdrawal success. METHODS: De novo, low-immunological risk kidney recipients received an anti-interleukin-2-receptor-α antibody induction, a short course of 7 days of corticosteroids, and CsA with 2-hr postdose concentration monitoring. They were randomized to adjusted dose (AD) of mycophenolate mofetil (MMF) using therapeutic drug monitoring (TDM) or a fixed-dose (FD) regimen. MMF 3 g was initiated posttransplant and then adjusted starting at week 2 to a 0 to 12 hr area under the concentration time curve of 40 mg · h/L versus 2 g daily, respectively. The primary endpoint was a composite of the proportion of patients experiencing biopsy-proven acute rejection (BPAR) and those with SCAR identified on the 3-month protocol biopsy. RESULTS: Among 247 analyzed patients, only 22 in the AD group and 17 in the FD group experienced BPAR or SCAR (P=0.46). The rate of SCAR was low: 4% (AD) and 2.5% (FD). No between-group difference in the incidence of BPAR was observed. TDM yielded MMF doses ranging from 1 to 4 g/d and significantly reduced interpatient variability at weeks 26 and 52 in the AD group. CONCLUSIONS: In low-immunological risk kidney recipients, MMF combined with CsA allows early corticosteroid discontinuation with good tolerability. In this group of patients, TDM of MMF does not improve clinical outcome.


Assuntos
Corticosteroides/uso terapêutico , Ciclosporina/uso terapêutico , Rejeição de Enxerto/epidemiologia , Transplante de Rim/imunologia , Ácido Micofenólico/análogos & derivados , Ácido Micofenólico/uso terapêutico , Suspensão de Tratamento , Corticosteroides/efeitos adversos , Adulto , Biópsia , Relação Dose-Resposta a Droga , Estudos de Viabilidade , Feminino , Rejeição de Enxerto/imunologia , Humanos , Imunossupressores/uso terapêutico , Rim/patologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco , Resultado do Tratamento
14.
Liver Int ; 30(7): 1049-58, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20492512

RESUMO

BACKGROUND: The efficacy of a maintenance therapy in non-responder patients with chronic hepatitis C has been essentially evaluated by histological semiquantitative scores. AIM: The aim was to evaluate the efficiency of 2 years of treatment with peginterferon alpha-2a vs alpha-tocopherol in these patients by histology, morphometry and blood markers of fibrosis. METHOD: Hundred and five HCV patients with a Metavir fibrosis score > or = 2 were randomized to receive peginterferon alpha-2a 180 microg/week (PEG) (n=55) or alpha-tocopherol (TOCO) 1000 mg/day (n=50) for 96 weeks. The primary endpoint was improvement or stabilization of the Metavir fibrosis score by biopsy performed at week 96. Secondary endpoints included a quantitative assessment of fibrosis by morphometry and changes in blood markers of fibrosis. RESULTS: There was no difference at baseline between PEG and TOCO according to the metavir (83.3 vs 86.8%, P=0.751) stage. The median fibrosis rate, measured with morphometry was 2.72 and 2.86% at day 0, and 3.66 and 2.82% at week 96, in the PEG and TOCO groups (P=0.90) respectively. However, the percentage of patients with metavir activity grade improvement was significantly higher in the PEG group vs the TOCO group (52.8 vs 23.7%, P=0.016). Non-invasive markers analysis did not show any significant change in both groups. CONCLUSION: Long-term therapy with peginterferon alpha-2a did not reduce liver fibrosis degree assessed by morphometry and blood tests as compared with alpha-tocopherol. Blood tests could be useful to assess liver fibrosis changes in clinical trials.


Assuntos
Antivirais/uso terapêutico , Hepatite C Crônica/tratamento farmacológico , Interferon-alfa/uso terapêutico , Cirrose Hepática/prevenção & controle , Fígado/efeitos dos fármacos , Polietilenoglicóis/uso terapêutico , alfa-Tocoferol/uso terapêutico , Adulto , Antivirais/efeitos adversos , Biomarcadores/sangue , Biópsia , Progressão da Doença , Feminino , França , Hepacivirus/genética , Hepatite C Crônica/sangue , Hepatite C Crônica/complicações , Hepatite C Crônica/diagnóstico , Humanos , Interferon alfa-2 , Interferon-alfa/efeitos adversos , Fígado/patologia , Cirrose Hepática/sangue , Cirrose Hepática/diagnóstico , Cirrose Hepática/etiologia , Masculino , Pessoa de Meia-Idade , Polietilenoglicóis/efeitos adversos , Valor Preditivo dos Testes , RNA Viral/sangue , Proteínas Recombinantes , Fatores de Tempo , Resultado do Tratamento , alfa-Tocoferol/efeitos adversos
15.
Eur Heart J ; 28(12): 1409-17, 2007 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-17412730

RESUMO

AIMS: The ESC/ACC redefined myocardial infarction as any amount of necrosis caused by ischaemia. The aim of this study was to describe the management and outcomes using 'real-world' data taking the new definition of acute myocardial infarction into account. METHODS AND RESULTS: A total of 2,151 consecutive patients (76.0% men) with a myocardial infarction were enrolled at 56 centres in France. The median delay to presentation was shorter in patients with ST-segment elevation myocardial infarction (STEMI) vs. non-STEMI (NSTEMI) (4 vs. 7 h, P < 0.0001). STEMI patients were more likely to receive fibrinolysis (28.9 vs. 0.7%, P < 0.0001) or undergo PCI (71.0 vs. 51.6%, P < 0.0001) but less likely to have bypass surgery (3.1 vs. 4.9%, P < 0.05). At discharge, patients with STEMI received more aggressive secondary prevention therapies than those with NSTEMI, which was not supported by differences in disease severity. A total of 1878 patients were followed-up for 1 year: 36.7% of STEMI and 41.5% of NSTEMI patients were rehospitalized (P = 0.05); 16% in both groups were revascularized. In-hospital mortality was similar (4.6 vs. 4.3%), and 1-year mortality was 9.0% in STEMI patients and 11.6% in NSTEMI patients (Log-Rank P = 0.09). Independent correlates of in-hospital mortality were untreated dyslipidaemia, advanced age, diabetes, and low blood pressure. The strongest predictors of 1-year mortality were heart failure and age. Similar predictors were found in STEMI and NSTEMI subgroups. CONCLUSIONS: Despite different management, patients with STEMI and NSTEMI have similar prognoses and independent correlates of outcome. These findings support the new definition of myocardial infarction.


Assuntos
Angioplastia Coronária com Balão , Ponte de Artéria Coronária , Fibrinolíticos/uso terapêutico , Infarto do Miocárdio/mortalidade , Infarto do Miocárdio/terapia , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Eletrocardiografia , Feminino , França/epidemiologia , Sistema de Condução Cardíaco , Mortalidade Hospitalar , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/diagnóstico , Reperfusão Miocárdica , Readmissão do Paciente/estatística & dados numéricos , Estudos Prospectivos , Sistema de Registros , Fatores de Risco , Índice de Gravidade de Doença , Fatores de Tempo
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