SUMMARY OBJECTIVE: Patients with rheumatic diseases have an increased risk of infections, especially tuberculosis. In this study, we aimed to recognize the positivity rate of tuberculosis skin test in patients with rheumatoid arthritis and spondyloarthritis and the characteristics of the patients with positive results. METHODS: Retrospective study of tuberculosis skin test results in patients followed from 2004 to 2021 in a single rheumatology unit. Data related to clinical and epidemiological features, along with treatment information referring to the period in which the tuberculosis skin test was performed, were collected from patients’ charts. RESULTS: A total of 723 tests were identified (448 tests in 269 rheumatoid arthritis patients and 275 in 174 spondyloarthritis patients). In the rheumatoid arthritis sample, 31/275 (11.5%) individuals had positive tests, and in the spondyloarthritis, 38/174 (21.8%) had positive tests. In the rheumatoid arthritis sample, patients with positive tuberculosis skin tests used a higher dose of methotrexate than those with negative results (median of 25 mg/week versus median of 20 mg/week respectively; p=0.02). In the spondyloarthritis sample, tuberculosis skin test positivity was associated with alcohol ingestion (13.1% versus 2.9% in users and non-users respectively; p=0.02) and sulfasalazine use (15.7% of positivity in users versus 5% in non-users; p=0.01). CONCLUSION: The tuberculosis skin test-positive prevalence in rheumatoid arthritis was lower than in the spondyloarthritis sample. Patients with rheumatoid arthritis using a higher dosage of methotrexate or with spondyloarthritis using sulfasalazine had more frequency of tuberculosis skin test positivity and should be carefully followed by the attending physician in order to avoid the appearance of full-blown tuberculosis.

Introduction: Rheumatoid arthritis (RA) is treated with conventional and biological disease-modifying drugs (DMARDs). Objectives: To compare the survival of biological drugs used for the treatment of RA patients. Methods: Retrospective study of medical records of patients who used biological medication for the treatment of RA from January 2020 to January 2022 and this was suspended. Data on the causes of withdrawal, duration of use, epidemiological, clinical and comorbid data were collected. Results: The main reason for discontinuity was failure followed by side effects. Infliximab and adalimumab had the highest survival. BMI (body mass index) and smoking, sex and age did not interfere in this survival. Conclusion: Failure is the most common cause of biological discontinuity. Among the factors studied (smoking, BMI, age and gender) it was not possible to identify a variable that was associated with failure.

Introdução: A artrite reumatoide (AR) é tratada com drogas modificadoras da doença (DMARDs) convencionais e biológicas. Objetivos: Comparar a sobrevida de medicamentos biológicos utilizados para o tratamento de pacientes com AR. Método: Estudo retrospectivo de prontuários de pacientes que utilizaram medicamento biológico para tratamento de AR de janeiro de 2020 a janeiro de 2022 e este foi suspenso. Dados acerca das causas de retirada, tempo de uso, dados epidemiológicos, clínicos e de comorbidades foram coletados. Resultados: O principal motivo da descontinuidade foi a falha seguida por efeitos colaterais. Infliximabe e adalimumabe foram os que apresentaram maior sobrevida. IMC (índice de massa corporal) e o tabagismo, sexo e idade não mostraram interferência nesta sobrevida Conclusão: Falha é a causa mais comum de descontinuidade dos biológicos. Dentre os fatores estudados (fumo, IMC, idade e sexo) não foi possível identificar variável que se associasse com falha.

Abstract Background Psoriasis is a protean disease associated with several comorbidities that may have increased levels of adiponectin such as resistin. This may affect the patients atherosclerotic risk. Objective To study resistin levels in a sample of Brazilian patients with psoriasis and its association with clinical profile, comorbidities, and carotid Intima-Media Thickness (cIMT). Methods This is a cross-sectional study of 119 individuals: 34 healthy controls and 85 patients with psoriasis, 42 of which with skin involvement only and 43 with psoriatic arthritis. Clinical and epidemiological data, measurement of PASI (Psoriasis Area Severity Index) and DAPSA (Disease Activity in Psoriatic Arthritis), lipid profile, cIMT by ultrasound were collected from medical records. Resistin serum levels were measured by ELISA. Results Patients with psoriasis had higher resistin levels (p = 0.009) and worse cIMT (p = 0.0002) than controls. In the psoriasis sample, no associations of resistin levels with epidemiological, clinical findings, and activity indexes were found. Resistin serum levels were associated with the presence of diabetes (p = 0.008) and metabolic syndrome (p = 0.01) and correlated with total cholesterol (r = 0.26) and triglycerides (r = 0.33) but not with cIMT. Study limitations This work is limited by its transversal design and by the limited number of patients included. Conclusion Resistin serum levels are elevated in psoriasis patients. In this sample, clinical, epidemiological, and activity indexes were not linked to resistin serum levels, but atherosclerotic risk factors were.

RESUMO Antecedentes: Os distúrbios do sono são comuns em pacientes com artrite reumatoide (AR) e contribuem para a perda da qualidade de vida. Objetivo: Estudar as associações entre a qualidade do sono e a dor, depressão e atividade da doença na AR. Métodos: Estudo observacional transversal com 112 pacientes com AR submetidos à avaliação do DAS-28, escala de Epworth para sonolência diurna, qualidade do sono pelo índice de Pittsburg, risco de apneia do sono pelo questionário de Berlim e grau de depressão pelo questionário CES-D (Center for Epidemiologic Studies Depression). Também foram coletados dados epidemiológicos, clínicos, sorológicos e de tratamento. Resultados: Apenas 18,5% dos pacientes com AR tinham uma boa qualidade do sono. Na análise univariada, um sono ruim medido pelo índice de Pittsburg esteve associado à dose diária de prednisona (p = 0,03), DAS-28 (p = 0,01), CES-D (p = 0,0005) e mostrou uma tendência a estar associado à apneia do sono pelo questionário de Berlim (p = 0,06). Na análise multivariada, somente a depressão (p = 0,008) e a apneia do sono pelo questionário de Berlim (p = 0,004) mantiveram essa associação. Conclusões: A maior parte dos pacientes com AR não tem uma boa qualidade de sono. A depressão e o risco de apneia do sono estão independentemente associados ao comprometimento do sono.

ABSTRACT Background: Sleep disturbances are common in rheumatoid arthritis (RA) patients and contribute to loss of life quality. Objective: To study associations of sleep quality with pain, depression and disease activity in RA. Methods: This is a transversal observational study of 112 RA patients submitted to measurement of DAS-28, Epworth scale for daily sleepiness, index of sleep quality by Pittsburg index, risk of sleep apnea by the Berlin questionnaire and degree of depression by the CES-D (Center for Epidemiologic Studies Depression scale) questionnaire. We also collected epidemiological, clinical, serological and treatment data. Results: Only 18.5% of RA patients had sleep of good quality. In univariate analysis a bad sleep measured by Pittsburg index was associated with daily doses of prednisone (p = 0.03), DAS-28 (p = 0.01), CES-D (p = 0.0005) and showed a tendency to be associated with Berlin sleep apnea questionnaire (p = 0.06). In multivariate analysis only depression (p = 0.008) and Berlin sleep apnea questionnaire (p = 0.004) kept this association. Conclusions: Most of RA patients do not have a good sleep quality. Depression and risk of sleep apnea are independently associated with sleep impairment.

Lectina de ligação à manose é uma lectina instrumental na imunidade inata. Ela reconhece padrões de hidratos de carbono encontrados na superfície de um grande número de microrganismos patogênicos, que ativam o sistema complemento. No entanto, esta proteína parece aumentar o dano tecidual após isquemia. Neste trabalho são revisados alguns aspectos do papel nocivo da lectina de ligação à manose na lesão de isquemia/reperfusão.

Mannose binding lectin is a lectin instrumental in the innate immunity. It recognizes carbohydrate patterns found on the surface of a large number of pathogenic micro-organisms, activating the complement system. However, this protein seems to increase the tissue damage after ischemia. In this paper is reviewed some aspects of harmful role of the mannose binding lectin in ischemia/reperfusion injury.

O ácido úrico, um produto metabólico das purinas, pode exercer um papel na cicatrização de tecidos. Nesta revisão, será explorado o seu papel no alarme inicial do processo inflamatório que é necessário para o reparo tissular, bem como a sua atuação neutralizadora de radicais livres de oxigênio, mobilizadora de células endoteliais progenitoras e favorecedora da atuação do sistema imunológico adaptativo.

Uric acid, a metabolic product of purines, may exert a role in tissue healing. In this review we will explore its role as an alarm initiating the inflammatory process that is necessary for tissue repair, as a scavenger of oxygen free radicals, as a mobilizer of progenitor endothelial cells and as supporter of adaptive immune system.