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1.
Cells ; 8(8)2019 Aug 10.
Artigo em Inglês | MEDLINE | ID: mdl-31405169

RESUMO

Patients with long-term, treated, rheumatoid arthritis (RA) show abnormalities in their circulating CD4+ T-lymphocytes, but whether this occurs in recently diagnosed naïve patients to disease-modifying drugs (DMARDs) is under discussion. These patients show heterogeneous clinical response to methotrexate (MTX) treatment. We have examined the count of circulating CD4+ T-lymphocytes, and their naïve (TN), central memory (TCM), effector memory (TEM) and effector (TE) subsets, CD28 expression and Vß TCR repertoire distribution by polychromatic flow cytometry in a population of 68 DMARD-naïve recently diagnosed RA patients, before and after 3 and 6 months of MTX treatment. At pre-treatment baseline, patients showed an expansion of the counts of CD4+ TN, TEM, TE and TCM lymphocyte subsets, and of total CD4+CD28- cells and of the TE subset with a different pattern of numbers in MTX responder and non-responders. The expansion of CD4+TEM lymphocytes showed a predictive value of MTX non-response. MTX treatment was associated to different modifications in the counts of the CD4+ subsets and of the Vß TCR repertoire family distribution and in the level of CD28 expression in responders and non-responders. In conclusion, the disturbance of CD4+ lymphocytes is already found in DMARD-naïve RA patients with different patterns of alterations in MTX responders and non-responders.

2.
Medicine (Baltimore) ; 95(9): e2891, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26945378

RESUMO

The aim of the study was to profile those patients included in the RELESSER registry with histologically proven renal involvement in order to better understand the current state of lupus nephritis (LN) in Spain. RELESSER-TRANS is a multicenter cross-sectional registry with an analytical component. Information was collected from the medical records of patients with systemic lupus erythematosus who were followed at participating rheumatology units. A total of 359 variables including demographic data, clinical manifestations, disease activity, severity, comorbidities, LN outcome, treatments, and mortality were recorded. Only patients with a histological confirmation of LN were included. We performed a descriptive analysis, chi-square or Student's t tests according to the type of variable and its relationship with LN. Odds ratio and confidence intervals were calculated by using simple logistic regression. LN was histologically confirmed in 1092/3575 patients (30.5%). Most patients were female (85.7%), Caucasian (90.2%), and the mean age at LN diagnosis was 28.4 ±â€Š12.7 years. The risk for LN development was higher in men (M/F:47.85/30.91%, P < 0.001), in younger individuals (P < 0.001), and in Hispanics (P = 0.03). Complete response to treatment was achieved in 68.3% of patients; 10.35% developed ESRD, which required a kidney transplant in 45% of such cases. The older the patient, the greater was the likelihood of complete response (P < 0.001). Recurrences were associated with persistent lupus activity at the time of the last visit (P < 0.001) and with ESRD (P < 0.001). Thrombotic microangiopathy was a risk factor for ESRD (P = 0.04), as for the necessity of dialysis (P = 0.01) or renal transplantation (P = 0.03). LN itself was a poor prognostic risk factor of mortality (OR 2.4 [1.81-3.22], P < 0.001). Patients receiving antimalarials had a significantly lower risk of developing LN (P < 0.001) and ESRD (P < 0.001), and responded better to specific treatments for LN (P = 0.014). More than two-thirds of the patients with LN from a wide European cohort achieved a complete response to treatment. The presence of positive anti-Sm antibodies was associated with a higher frequency of LN and a decreased rate of complete response to treatment. The use of antimalarials reduced both the risk of developing renal disease and its severity, and contributed to attaining a complete renal response.


Assuntos
Nefrite Lúpica/epidemiologia , Sistema de Registros , Adolescente , Adulto , Feminino , Humanos , Nefrite Lúpica/terapia , Masculino , Recidiva , Estudos Retrospectivos , Reumatologia , Espanha/epidemiologia , Adulto Jovem
3.
Clin Rheumatol ; 28(5): 603-5, 2009 May.
Artigo em Inglês | MEDLINE | ID: mdl-19219480

RESUMO

The aims of this study were to find the characteristics and prevalence of nailfold capillary changes in a large series of patients with Behçet's disease (BD) and to analyze their possible relation to other clinical characteristics of the disease. We performed nailfold capillaroscopy in 128 randomly selected patients fulfilling the international classification criteria for BD. Capillaroscopy was done in eight fingers with a x3.2 microscopy. All patients were questioned for history of Raynaud's phenomenon, ischemic ulcers, smoking, and hypertension. A computerized form including demographic, clinical, and para-clinical features was used to collect data. Univariate and multivariate logistic regressions were used to analyze the relation between capillaroscopic findings and disease characteristics. Odds ratio and a confidence interval at 95% (CI) were calculated for each item. The mean age of the patients was 37 +/- 10 years, and the male to female ratio was 1.56:1. Capillaroscopy was abnormal in 51 patients (40%, CI 8.5). Enlarged capillaries were seen in 33 patients (26%, CI 7.6), hemorrhages in 21 (16%, CI 6.4), and capillary loss only in one patient. In univariate logistic regression analysis, the presence of enlarged capillaries was associated with lower age at disease onset (OR = 0.9, CI 0.9-1; p = 0.04), hypertension (OR = 4.2, CI 1.5-11.4; p = 0.006), superficial phlebitis (OR = 5.5, CI 1.2-24.4; p = 0.03), and negative pathergy test (OR = 0.4, CI 0.2-0.9; p = 0.04). The presence of hemorrhages tended to be associated with articular symptoms (p = 0.05). Multivariate analysis also confirmed the association of enlarged capillaries with lower age at disease onset (p = 0.01), hypertension (p = 0.001), and superficial phlebitis (p = 0.03). Nailfold abnormalities, mainly enlarged capillaries, are frequent in patients with BD. Our results suggest that these abnormalities may be related to other vascular features of the disease such as superficial phlebitis, but it does not seem to confer special risk for any other specific clinical symptom of the disease.


Assuntos
Síndrome de Behçet/diagnóstico , Capilares/patologia , Dedos/irrigação sanguínea , Angioscopia Microscópica/métodos , Unhas/irrigação sanguínea , Flebite/diagnóstico , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Razão de Chances , Flebite/patologia , Estudos Prospectivos , Risco
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