RESUMO
Acute myocardial infarction (AMI) is associated with systemic inflammatory processes and metabolic alterations. Microbial-derived metabolites, such as short-chain fatty acids and trimethylamine N-oxide (TMAO), have emerged in recent years as key players in the modulation of inflammation, with potential implications for cardiovascular diseases. We performed a prospective observational study that monitored the serological concentration of bacterial metabolites in 45 young patients (<55 years) without cardiovascular risk factors but with AMI, at hospital admission and at 3 months of follow-up, and compared them with a control group. TMAO and acetate levels were significantly higher in AMI, whereas butyrate and propionate were significantly lower. The acetate/propionate ratio showed the most discrimination between AMI and controls by receiver operating characteristic analysis (area under the curve 0.769, P < 0.0001). A multivariate logistic regression model revealed that this ratio was independently associated with AMI. Short-chain fatty acid concentrations, but not TMAO, exhibited significant correlations with inflammatory and coagulation parameters. Three months after the acute AMI event, all metabolite levels returned to those observed in healthy controls except butyrate. In conclusion, our study reveals disturbances of the serological concentration of microbiota-derived metabolites in AMI that are also related to inflammatory and coagulation parameters. These findings highlight an interesting field of study in the potential role of microbial metabolites from gut in cardiovascular disease.
RESUMO
This study aimed to determine the flare rate (FR) in a cohort of Juvenile Idiopathic Arthritis (JIA) patients with tapered or abruptly discontinued biologic disease-modifying anti-rheumatic drugs (bDMARDs) and to identify predictors of flare. This retrospective observational study included 191 bDMARD dose-reduction events in patients with JIA followed-up at a referral hospital during the period 2000-2019. FR was analysed according to reduction strategies. To identify predictors of flare, Kaplan-Meier and Cox-regression models were plotted at 6 months (6 m), 12 months (12 m) and 24 months (24 m) following tapering (TP) or withdrawal (WD). 165 episodes of TP and 71 episodes of WD were included; 45 episodes where treatment was withdrawn after TP were included in both strategies. FR after TP was 13.4% at 6 m and increased up to 26.6% at 12 m and 51.4% at 24 m. After WD, FR was higher, 52.1% of events had a flare at 6 m and 67.6% at 12 m. Previous TP did not increase time in remission after WD of bDMARDs in the Kaplan-Meier analysis. Factors associated with flares were identified after TP at 6 m: female sex, higher number of previous bDMARDs and longer time on bDMARD treatment were positively associated with flares. Polyarticular subtype and younger age at diagnosis were associated with flares at 12 and 24 m after TP. No factors were identified in multivariable analysis after WD. TP is a successful strategy to maintain remission with lower bDMARD doses. Previous TP of bDMARDs does not seem to increase time in remission after WD.
Assuntos
Antirreumáticos , Artrite Juvenil , Antirreumáticos/uso terapêutico , Artrite Juvenil/diagnóstico , Artrite Juvenil/tratamento farmacológico , Feminino , Humanos , Estimativa de Kaplan-Meier , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Resultado do TratamentoRESUMO
Introducción: Las fluoroquinolonas han sido asociadas con aumento del riesgo de tendinopatía y rotura del tendón de Aquiles (RTA), especialmente en pacientes mayores de 60 años. Métodos: Se llevó a cabo un estudio retrospectivo en el que se incluyó a los pacientes mayores de 60 años con RTA atendidos en nuestro centro durante el período 2000-2017. Resultados: Se identificó a 44 pacientes con RTA, de los cuales 18% (8/44) habían sido tratados previamente con fluoroquinolonas, con una media de edad al diagnóstico de RTA de 77,37 años y corticoterapia concomitante en 4 de ellos. En 7 pacientes la rotura fue espontánea y todas requirieron tratamiento quirúrgico. Se encontró una frecuencia significativamente mayor de tabaquismo, corticoterapia concomitante y roturas espontáneas en el grupo tratado con fluoroquinolonas. Conclusiones: La RTA es un evento adverso que puede ocurrir en pacientes mayores de 60 años tratados con fluoroquinolonas, por lo que debería realizarse una adecuada evaluación relación riesgo-beneficio en esta población, especialmente en presencia de factores de riesgo asociados.(AU)
Background: Fluoroquinolones have been associated with increased risk of tendinopathy and Achilles tendon rupture (ATR), especially in patients over 60 years of age.Methods: A retrospective study was carried out including patients over 60 years of age with ATR attended in our centre over the period 2000-2017. Results: We identified 44 patients with RTA, of whom 18% (8/44) had been previously treated with fluoroquinolones, with a mean age at diagnosis of ATR of 77.37 years and concomitant corticotherapy in 4 of them. In 7patients, the rupture was spontaneous and all required surgical management. A significantly higher frequency of smoking, concomitant corticotherapy and spontaneous ruptures were found in the group treated with fluoroquinolones. Conclusions: ATR is an adverse event that can occur in patients over 60 years of age treated with fluoroquinolones, so an adequate risk-benefit assessment should be carried out in this population, especially in the presence of associated risk factors.(AU)
Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Tendão do Calcâneo , Ruptura , Fluoroquinolonas , Tendinopatia , Levofloxacino , Ciprofloxacina , Estudos Retrospectivos , Reumatologia , Doenças ReumáticasRESUMO
BACKGROUND: Fluoroquinolones have been associated with increased risk of tendinopathy and Achilles tendon rupture (ATR), especially in patients over 60 years of age. METHODS: A retrospective study was carried out including patients over 60 years of age with ATR attended in our centre over the period 2000-2017. RESULTS: We identified 44 patients with RTA, of whom 18% (8/44) had been previously treated with fluoroquinolones, with a mean age at diagnosis of ATR of 77.37 years and concomitant corticotherapy in 4 of them. In 7patients, the rupture was spontaneous and all required surgical management. A significantly higher frequency of smoking, concomitant corticotherapy and spontaneous ruptures were found in the group treated with fluoroquinolones. CONCLUSIONS: ATR is an adverse event that can occur in patients over 60 years of age treated with fluoroquinolones, so an adequate risk-benefit assessment should be carried out in this population, especially in the presence of associated risk factors.
RESUMO
Paraneoplastic polyarthritis is an inflammatory arthritis, is usually seronegative, and has a temporal and pathophysiological relationship with an underlying malignancy. Although head and neck tumors may be a cause of paraneoplastic polyarthritis, its association with tongue carcinoma has not been previously reported. We present the case of a 69-year-old man who was a former smoker and presented with polyarthritis since 2 months in the wrists, proximal interphalangeal joints, knees, and elbows, with increased levels of acute-phase reactants; negativity for rheumatoid factor, anticitrullinated cyclic peptide antibody, and antinuclear antibody; and negative results for crystals and microorganisms in the synovial fluid. Cervical computed tomography and posterior rhinoscopy were performed, which detected an asymptomatic lesion on the base of the tongue, whose biopsy was compatible with nonkeratinizing squamous cell carcinoma. Polyarthritis did not respond to glucocorticoids at medium doses (oral prednisone 20 mg/day) but progressively resolved after the initiation of antineoplastic therapy.
