ABSTRACT
Existen diversos índices capaces de valorar el daño radiográfico en pacientes con artritis psoriásica (APs), sin embargo la mayoría fueron creados para su uso en Artritis Reumatoidea y luego modificados para APs, por lo tanto no valoran lesiones características como la osteoproliferación. El objetivo de este estudio fue validar el Reductive X-Ray Score for Psoriatic Arthritis (ReXSPA), el cual fue recientemente desarrollado para su uso en cohortes observacionales. Material y métodos: Estudio de corte transversal, en el cual se incluyeron pacientes ≥18 años de edad, en forma consecutiva, con diagnóstico de APs según criterios CASPAR. A todos los pacientes se les realizaron radiografías de manos y pies en proyección anteroposterior. Dos lectores ciegos para las características clínicas de los pacientes y previamente entrenados, analizaron las mismas por medio de los índices Sharp van der Heijde modificado para APs (SvdHmAPs) y ReXSPA. Se midió el tiempo empleado para la lectura de los índices radiográficos y para el cálculo de los mismos. Resultados: Se incluyeron 66 pacientes, 50% mujeres, con tiempo de evolución de la APs mediano de 8 años (RIC: 4-14.3). 132 radiografías fueron evaluadas según los índices SvdHmAPs [m 35 (RIC: 16.3-72.5)] y el ReXSPA [m 22 (RIC: 7-46.3)]. El tiempo para la lectura radiográfica fue significativamente menor para ReXSPA comparado con SvdHmAPs [media 5.8±2.1 vs media 7.5±2.5 minutos, p<0.0001], al igual que el tiempo para calcularlo [media 26.5±14.7 vs media 55.3±38.3 segundos, p<0.0001]. La correlación entre estos últimos fue excelente (Rho: 0.93). En el análisis multivariado se observó asociación de ambos índices con el tiempo de evolución de la enfermedad y en el caso de ReXSPA también con la edad. Conclusión: El índice ReXSPA ha demostrado validez y una excelente correlación con el índice SvdHmAPs, con menor tiempo para su lectura y cálculo. Evaluaciones longitudinales posteriores permitirán demostrar la validez de estos hallazgos.
There are many scores available to measure radiographic joint damage in patients with Psoriatic Arthritis (PsA), but most of them were developed for Rheumatoid Arhtritis and then modified for PsA. These scores do not evaluate juxtaarticular bone proliferation. The aim of our study was to validate the Reductive X-Ray Score for Psoriatic Arthritis (ReXSPA), which was recently developed to be used in observational cohorts. Methods: A cross-sectional study was carried out. Consecutive patients ≥18 years old with PsA according to CASPAR criteria were included. All patients underwent X-rays of the hands and feet in an anteroposterior view. Two blind readers for the clinical characteristics of the patients and previously trained, scored them by Sharp van der Heijde modified for PsA (PsA-SvdH) and ReXSPA indexes. Time to read and calculate both scores were measured. Results: A total of 66 patients were included, half of them were female, median (m) disease duration of 8 years (IQR: 4-14.3). 132 X-Rays were scored according to PsA-SvdH [m 35 (IQR: 16.3-72.5)] and ReXSPA [m 22 (IQR: 7-46.3)]. Time to read was significantly shorter for ReXSPA than PsA-SvdH [mean 5.8±2.1 vs mean 7.5±2.5 minutes, p<0.0001], as well as, time to calculate them [mean 26.5±14.7 vs mean 55.3±38.3 seconds, p<0.0001]. The correlation between both indexes was excellent (Rho: 0.93). In the multivariate analysis, using both radiographic scores as dependent variable, association of each of the indices with disease duration was observed, and ReXSPA also had association with age. Conclusion: The ReXSPA index has shown validity and a very good correlation with PsA-SvdH. It is quicker to read and to calculate than PsA-SvdH. Subsequent longitudinal evaluations will allow demonstrating the validity of these findings.
Subject(s)
Humans , Arthritis, Psoriatic , X-Rays , Disease , Cross-Sectional Studies , DiagnosisABSTRACT
<p><b>OBJECTIVE</b>To investigate the neuro-protective effects of Acanthopanax senticosus Harms (EAS) on mesencephalic mitochondria and the mechanism of action, using a mouse model of Parkinson's disease (PD).</p><p><b>METHODS</b>The chemical fingerprint analysis of the extract of Acanthopanax senticosus Harms (EAS) was performed using the ultra performance liquid chromatograph and time of flight mass spectrometry. Thirty mice were randomly divided into the control group, the MPTP model group, and the EAS treated group with MPTP (MPTP+EAS group, 10 in each group). The MPTP model group and the MPTP+EAS group received MPTP-HCl (30 mg/kg i.p) once a day for 5 days. The control group received an equal volume of saline (20 mL/kg i.p) once a day for 5 days. Induced by 1-methyl-4-phenyl-1, 2, 3, 6-tetrahydropyridine hydrochloride daily (MPTP-HCl, 30 mg/kg) for 5 days, the PD mice were treated with EAS at 45.5 mg/kg daily for 20 days. The behavioral testing of mice was carried out using the pole-climbing test. The integrity and functions of neurons were examined in mesencephalic mitochondria in a PD mouse model, including nicotinamide adenine dinucleotide dehydrogenase ubiquinone flavoprotein 2 (NDUFV2), mitochondrially encoded nicotinamide adenine dinucleotide dehydrogenase 1 (MT-ND1), succinate dehydrogenase complex subunit A (SDHA), and succinate dehydrogenase cytochrome b560 subunit (SDHC).</p><p><b>RESULTS</b>After treatment with EAS, the behavioral changes induced by MPTP were attenuated significantly (P<0.05). EAS protected the mesencephalic mitochondria from swelling and attenuated the decreases in their membrane potential (both P<0.05), which was supported by an ultra-structural level analysis. The changes in reactive oxygen species (ROS), malonic dialdehyde (MDA), oxidative phosphorylation (OXPHOS) system 4 subunits levels and PD-related proteins expressions (parkin, Pink1, DJ-1, α-synuclein, and Lrrk2) reverted to near normal levels (all P<0.05), based on the results of immune-histological and Western blotting observations.</p><p><b>CONCLUSIONS</b>The neuro-protective effects of EAS are linked to protecting mice against MPTP-induced mitochondrial dysfunction and structural damage. Therefore, EAS is a promising candidate for the prevention or treatment of mitochondrial neurodegenerative disorders, such as PD.</p>
ABSTRACT
ABSTRACT Introduction: The presence of anti-CCP is an important prognostic tool of rheumatoid arthritis (RA). But research is still ongoing on its relationship with disease activity and functional capacity. Objectives: To study the relationship between anti-CCP and disease activity, functional capacity and structural damage indexes, by means of conventional radiography (CR) and magnetic resonance imaging (MRI), in cases of established RA. Methods: Cross-sectional study with RA patients with 1–10 disease duration. Participants underwent clinical evaluation with anti-CCP. Disease activity was assessed using the Clinical Disease Activity Index (CDAI), and functional capacity through the Health Assessment Questionnaire (HAQ). CR analysis was carried out by the Sharp van der Heijde index (SvdH), and MRI analysis by RAMRIS (Rheumatoid Arthritis Magnetic Resonance Image Scoring). Results: We evaluated 56 patients, with a median (IqR) age of 55 (47.5–60) years; 50 (89.3%) participants were female and 37 (66.1%) were positive for anti-CCP. Medians (IqR) of CDAI, HAQ, SvdH and RAMRIS were 14.75 (5.42–24.97) 1.06 (0.28–1.75), 2 (0–8) and 15 (7–35), respectively. There was no association between anti-CCP and CDAI, HAQ and SvdH and RAMRIS scores. Conclusion: Our results have not established an association of anti-CCP with the severity of disease. To date, we cannot corroborate anti-CCP as a prognostic tool in patients with established RA.
RESUMO Introdução: A presença do anti-CCP constitui importante ferramenta prognóstica da artrite reumatoide (AR), mas ainda se investiga sua relação com a atividade da doença e a a capacidade funcional. Objetivos: Estudar a relação do anti-CCP com os índices de atividade da doença, de capacidade funcional e de dano estrutural, por meio de radiografia convencional (RC) e de ressonância magnética (RM), em AR estabelecida. Métodos: Estudo transversal com pacientes com AR, com um a 10 anos de doença. Os participantes foram submetidos à avaliação clínica com pesquisa do anti-CCP. A atividade de doença foi avaliada por meio do Clinical Disease Activity Index (CDAI) e a capacidade funcional por meio do Health Assessment Questionnaire (HAQ). A análise da RC foi feita pelo índice de Sharp van der Heijde (SmvH) e da RM pelo Sistema de Pontuação de Imagem por Ressonância Magnética na Artrite Reumatoide (RAMRIS, Rheumatoid Arthritis Magnetic Resonance Image Scoring). Resultados: Foram avaliados 56 pacientes, com mediana (IIq) de 55 (47,5-60,0) anos, 50 (89,3%) do sexo feminino e 37 (66,1%) anti-CCP positivos. As medianas (IIq) do CDAI, do HAQ, de SmvH e do RAMRIS foram de 14,75 (5,42-24,97), 1,06 (0,28-1,75), 2 (0-8) e 15 (7-35), respectivamente. Não houve associação do anti-CCP com o CDAI, com o HAQ e com os escores SmvH e RAMRIS. Conclusão: Nossos resultados não estabeleceram a associação do anti-CCP com a gravidade da doença. Até o momento, não podemos corroborar o anti-CCP como uma ferramenta prognóstica em AR estabelecida.