Quality of life and strength, but not cytokines, are associated with DAS-28 in active and inactive rheumatoid arthritis / Qualidade de vida e força, porém não as citocinas, estão associadas ao DAS-28 em pacientes com artrite reumatoide na fase ativa e inativa

Objective: Evaluate and correlate data between relevant cytokines, disease progression, and handgrip and quality of life among RA patients at different stages of disease progression. Method: Thirty-three RA patients were recruited for analysis, using comparisons and correlations, between levels of circulating cytokines (IFN-γ, TNF-α, IL-4, IL-6, IL-10, IL-17, IL-1ß, and TNF receptors I and II), activity of the disease (evaluated using the DAS-28), handgrip (Hydraulic dynamometer), and quality of life (SF-36). Result: RA patients in different disease stages showed increases of IL-6 and IL-10 compared control group. Positive correlation between IL-6 with TNF-α, and IL-4 with IL-10 was found. Handgrip strength and quality of life were not related to cytokine levels. However, remission patients had better strength and quality of life indices compared to the active patients. In addition, handgrip of the non-dominant side, physical functions, role limitations physical health, pain, energy/fatigue and social functions have a negative correlation with the DAS28-PCR. Conclusion: High levels of IL-6 and IL-10 were observed in the chronic RA patients, but the values did not show correlation with disease activity, handgrip strength and quality of life. Disease activity show correlation with handgrip strength and quality of life. Furthermore, remission patients had better strength and quality of life indices compared to the active patients.

Objetivo: Avaliar e correlacionar dados entre citocinas relevantes, progressão da doença, preensão manual e qualidade de vida entre pacientes com AR em diferentes estágios de progressão da doença. Método: Trinta e três pacientes com AR foram recrutados para análise, por meio de comparações e correlações, entre níveis de citocinas circulantes (IFN-γ, TNF-α, IL-4, IL-6, IL-10, IL-17, IL-1ß e receptores de TNF-I e -II), atividade da doença (avaliada pelo DAS-28), preensão manual (dinamômetro hidráulico) e qualidade de vida (SF-36). Resultado: Pacientes com doença ativa e inativa apresentaram aumento de IL-6 e IL-10 comparados ao grupo controle. Foi encontrada correlação positiva entre IL-6 com TNF-α e IL-4 com IL-10. A força de preensão e a qualidade de vida não relacionaram aos níveis de citocinas. Entretanto, pacientes em remissão apresentaram melhores índices de força e qualidade de vida comparados aos pacientes com doença ativa. Além disso, preensão manual do lado não dominante, e quesitos dos SF-36, apresentam correlação negativa com o DAS28-PCR. Conclusão: Foram observados níveis elevados de IL-6 e IL-10 nos pacientes com AR crônica, mas os valores não mostraram correlação com DAS-28, força de preensão manual e SF-36. A atividade da doença apresenta correlação com força de preensão manual e qualidade de vida. Além disso, os pacientes em remissão apresentaram melhores índices de força e qualidade de vida em comparação aos pacientes ativos.

Mucositis oral como efecto adverso al uso del metotrexato en el tratamiento de la artritis reumatoide: una revisión sistematizada de casos / Oral mucositis as an adverse effect of the use of methotrexate in the treatment of rheumatoid arthritis: a systematized review of cases

Introducción: el metotrexato se usa ampliamente para el tratamiento de una variedad de enfermedades neoplásicas y autoinmunes. Sin embargo, como todo fármaco, su eficacia viene marcada por cierto grado de toxicidad debido a la farmacocinética del medicamento. El metotrexato se creó como un fármaco anticancerígeno; sin embargo, se ha convertido en el tratamiento de elección contra la artritis reumatoide. Principalmente, el metotrexato causa inflamación de las mucosas epiteliales. La mayoría de los efectos secundarios del metotrexato se pueden detectar de forma temprana y son reversibles. La mucositis del tracto alimentario es el principal efecto secundario de la quimioterapia contra el cáncer. Se le conoce colectivamente como lesión de la mucosa inducida por quimioterapia, afecta todo el canal alimentario desde la boca hasta el ano, ocasionando la mucositis oral y la mucositis intestinal. Material y métodos: se buscaron casos clínicos en los que se reporte mucositis causada por metotrexato en tratamiento de artritis reumatoide. Se empleó un diagrama de flujo, PRISMA modificado para la búsqueda de artículos. Finalmente, se cotejó que los casos clínicos cumplieran con los fundamentos de la CARE guide, para manejar una correcta estructura y bajo riesgo a sesgo. Conclusiones: una correcta anamnesis y exploración clínica oral es lo más importante de la medicina oral. Es relevante indagar sobre las enfermedades que presentan los pacientes, así como la historia de medicamentos que se administren, especialmente en pacientes mayores, con mayores padecimientos de enfermedades sistémicas (AU)

Introduction: methotrexate is widely used for the treatment of a variety of neoplastic and autoimmune diseases. However, like all drugs its efficacy is marked by a certain degree of toxicity due to the pharmacokinetics of the drug. Methotrexate was developed as an anticancer drug, however, it has become the treatment of choice for rheumatoid arthritis. Methotrexate primarily causes inflammation of the epithelial mucous membranes. Most of the side effects of methotrexate can be detected early and are reversible. Mucositis of the alimentary tract is the main side effect of cancer chemotherapy. It is collectively known as chemotherapy-induced mucosal injury, affecting the entire alimentary canal from the mouth to the anus, where oral mucositis and intestinal mucositis are both common. Material and methods: we searched for clinical cases reporting mucositis caused by methotrexate in the treatment of rheumatoid arthritis, using a modified PRISMA flowchart to search for articles. Finally, the clinical cases were checked for compliance with the fundamentals of the CARE guide, in order to manage a correct approach to oral medicine. It is important to inquire about the diseases the patients present, as well as the history of medications administered, especially in older patients, with more systemic disease conditions, structure, and low risk of bias. Conclusion: a correct anamnesis and oral clinical examination is the most important aspect of oral medicine. It is important to inquire about the diseases that the patients present, as well as the history of medications that are administered, especially in older patients with major systemic diseases (AU)

Actividad y discapacidad en pacientes cubanos con artritis reumatoide como factores que influyen en la sexualidad / Activity and Disability in Cuban Patients with Rheumatoid Arthritis as Factors that Influence Sexuality

Introducción: La artritis reumatoide es una enfermedad autoinmune de carácter inflamatorio y crónico. La afectación en la esfera sexual es frecuente, compromete a ambos sexos y se relaciona con factores como el dolor, la discapacidad y el consumo de medicamentos. Esta afectación no ha sido suficientemente abordada en la literatura a pesar de su prevalencia, y en Cuba no se han reportado hasta el momento estudios relacionados sobre este tema de investigación. Objetivo: Determinar el impacto de la artritis reumatoide en la sexualidad y su relación en la actividad y la discapacidad. Métodos: Se realizó un estudio monocéntrico, transversal, descriptivo. Se incluyeron los pacientes con un diagnóstico de artritis reumatoide en el período comprendido de septiembre de 2019 a junio de 2021. Se utilizó el cuestionario Qualisex para evaluar el impacto de la artritis reumatoide en la sexualidad. Resultados: En el estudio doscientos veintiséis pacientes fueron incluidos, la media de edad fue de 53,38 años (DE ± 12,22) el 82,7 por ciento fueron mujeres. Al responder el autocuestionario Qualisex el 73,9 por ciento de los sujetos presentaron afectación en la sexualidad. No se estableció una relación significativa entre la afectación en la esfera sexual y el tiempo de evolución. A diferencia de los niveles altos de actividad y discapacidad. Conclusiones: En la población estudiada se presentó afectación en la sexualidad, no obstante, esta no se relacionó con el tiempo de evolución de la artritis reumatoide. Se encontró asociación entre la actividad de la enfermedad y la capacidad funcional con la afectación en la esfera sexual(AU)

Introduction: Rheumatoid arthritis is a chronic, inflammatory autoimmune disease. Disorders in the sexual sphere is frequent, it affects both sexes and it is related to factors such as pain, disability and medication consumption. This condition has not been sufficiently addressed in the literature despite its prevalence and in Cuba no studies related to the topic under study have been reported to date. Objective: To determine the impact of rheumatoid arthritis on sexuality and its relationship with activity and disability. Methods: A monocentric, cross-sectional and descriptive study was carried out on patients with a diagnosis of rheumatoid arthritis, from September 2019 to June 2021. The Qualisex questionnaire was used to evaluate the impact of rheumatoid arthritis on sexuality. Results: Two hundred twenty-six patients were included, the mean age was 53.38 years (SD ± 12.22) and 82.7percent were women. When answering the Qualisex self-questionnaire, 73.9percent of the subjects had effects in their sexuality. No significant relationship was established between the involvement in the sexual sphere and the time of evolution. Conclusions: The impact on sexuality in the studied population was not related to the duration of rheumatoid arthritis. On the other hand, an association was found between disease activity and functional capacity with effects in the sexual sphere(AU)

Consecuencias de la artritis reumatoide en la articulación temporomandibular y su manejo odontológico / Consequences of rheumatoid arthritis in the temporomandibular joint and its dental management

Introducción: la artritis reumatoide es parte del grupo de las enfermedades autoinmunes con incidencia considerable sobre la población. Se caracteriza por la afección de las articulaciones del cuerpo que la padece; en mayor frecuencia se encuentra afectada la articulación temporomandibular por el complejo articular que ésta presenta; entre los signos y síntomas que comúnmente podemos encontrar en pacientes con este tipo de enfermedad son los chasquidos o ruidos articulares, dolor orofacial, pérdida o imposibilidad del movimiento de la mandíbula y cambios anatómicos localizados en el área de la articulación temporomandibular. Objetivo: describir las consecuencias que desencadena la artritis reumatoide sobre la articulación temporomandibular y cómo es para el odontólogo el manejo de estos pacientes en consulta, evaluar los tratamientos para cada caso sobre un correcto diagnóstico. Material y métodos: se realizó una revisión bibliográfica de artículos recientes sobre el tema, utilizando buscadores como SciELO, Elsevier y PubMed, siendo 30 las fuentes seleccionadas con idiomas en inglés y español. Resultados: esta enfermedad autoinmune se caracteriza por afectar múltiples articulaciones del cuerpo humano simétrica y bilateralmente incluyendo la articulación temporomandibular (ATM), lo cual conlleva al riesgo de desarrollar trastornos temporomandibulares (TTM). Es importante conocer los métodos para realizar un correcto diagnóstico oportuno de la ATM del paciente con artritis reumatoide (AR) con la finalidad de ofrecer un tratamiento conservador. Conclusión: los trastornos temporomandibulares desencadenantes de la artritis reumatoide son afecciones que se deben considerar para el buen manejo del paciente con este padecimiento, comprender y respaldar un diagnóstico clínico es de vital importancia para dar al paciente un tratamiento adecuado dependiendo el grado de complejidad en la que cada individuo se encuentra; conocer el manejo adecuado y encaminar al paciente a una mejor calidad de vida es clave en la consulta odontológica del día a día (AU)

Introduction: rheumatoid arthritis is part of the group of autoimmune diseases with considerable incidence in the population. It is characterized by the affection of the joints of the body that suffers from it; most frequently the temporomandibular joint is affected due to the articular complex that it presents; among the signs and symptoms that we can commonly find in patients with this type of disease are joint clicks or noises, orofacial pain, loss or impossibility of jaw movement and anatomical changes located in the temporomandibular joint area. Objective: to describe the consequences that rheumatoid arthritis triggers on the temporomandibular joint and how it is for the dentist to manage these patients in consultation, to evaluate the treatments for each case on a correct diagnosis. Material and methods: a bibliographic review of recent articles on the subject was carried out, using search engines such as SciELO, Elsevier and PubMed, with 30 sources selected in English and Spanish. Results: this autoimmune disease is characterized by affecting multiple joints of the human body symmetrical and bilaterally including the TMJ which leads to the risk of developing TMD. It is important to know the methods to make a correct diagnosis of the TMJ of the patient with RA in order to offer a conservative treatment. Conclusions: the temporomandibular disorders that trigger rheumatoid arthritis are conditions that should be considered for the proper management of the patient with this condition, understanding and supporting a clinical diagnosis is of vital importance to give the patient an adequate treatment depending on the degree of complexity in which each individual is; knowing the proper management and directing the patient to a better quality of life is key in the day-to-day dental practice (AU)

Tasa de publicaciones de trabajos presentados sobre artritis reumatoidea en congresos de Reumatología / Publication rates of papers on rheumatoid arthritis submitted to Congresses of Rheumatology

Resumen Introducción: se publica una minoría de todos los trabajos presentados en los Congresos Argentinos de Reumatología (CAR). Objetivos: analizar los temas de estudio (TDE) de los trabajos sobre artritis reumatoidea (AR) presentados en los CAR y su tasa de publicación. Materiales y métodos: se analizaron todos los resúmenes sobre AR, como motivo primario de estudio, presentados en los CAR entre 2008 y 2017. Se agruparon según TDE, y se determinaron los TDE repetidos definidos como, al menos, dos estudios similares presentados sobre el mismo tema. Se determinó la tasa de publicación, el número de estudios similares por TDE, el número de centros participantes y el número de pacientes estudiados. Resultados: sobre 346 trabajos presentados, 51 (14,7%) fueron publicados. Se publicaron 14 (11,9%) de los 118 estudios sobre TDE repetidos versus 37 (16,2%) del resto de los TDE (p=0,4). Los trabajos sobre TDE repetidos no incluyeron más pacientes ni involucraron a un número mayor de centros. Se encontraron 13 TDE repetidos con al menos tres estudios similares y ningún estudio publicado. Conclusiones: solo una minoría de los trabajos sobre AR se publicó. Un tercio de los trabajos presentados en los CAR correspondió a TDE repetidos, que no mejoraron la tasa de publicación.

Abstract Introduction: only a few articles submitted to the Argentine Congress of Rheumatology (ACOR) are published. Objectives: to analyse the topics of study (TOS) and the publication rate of articles on rheumatoid arthritis (RA) submitted to the ACOR. Materials and methods: every abstract submitted to the ACOR between 2008 and 2017, whose primary research subject was RA, was analyzed and sorted according to TOS. Repeated TOS, defined as at least two similar studies on the same topic, were identified. The publication rate and the number of similar studies according to TOS, participating centers, and patients were determined. Results: out of 346 articles submitted, 51 (14.7%) were published. Fourteen (11.9%) of the 118 studies on repeated TOS were published vs. 37 (16.2%) of the rest of the TOS (p: 0.4). The articles on repeated TOS neither included more patients nor involved a higher number of centers. Thirteen repeated TOS with at least three similar studies, but no published articles were identified. Conclusions: only a few articles on RA were published. One third of the studies submitted to the ACOR are repeated TOS, a fact that does not improve the publication rate.

Ansiedad, depresión y vulnerabilidad al estrés en personas con diagnóstico de artritis reumatoidea: un estudio exploratorio del Hospital de Clínicas de la Universidad Nacional de Asunción / Anxiety, depression, and vulnerability to stress in people diagnosed with rheumatoid arthritis: An exploratory study at the Hospital de Clínicas of the Universidad Nacional de Asunción

Antecedentes: Estudios observacionales han descrito una alta prevalencia de depresión y ansiedad en la artritis reumatoidea: los trastornos depresivos mayores se detectan en el 17 % de los pacientes con la patología, y la inflamación local y sistémica desempeña un papel importante en la ansiedad y la depresión. Objetivos: El objetivo general de esta investigación fue determinar la frecuencia de ansiedad, depresión y vulnerabilidad al estrés en pacientes con diagnóstico de artritis reumatoidea. Materiales y métodos: Este fue un estudio observacional, descriptivo de asociación cruzada y temporalmente prospectivo. El muestreo fue no probabilístico de casos consecutivos. Se incluyó a personas adultas con diagnóstico de artritis reumatoide que consultaron en el Departamento de Reumatología del Hospital de Clínicas, entre agosto y octubre del 2022. Para el diagnóstico psiquiátrico se utilizaron los siguientes instrumentos: Escala de Ansiedad Generalizada (GAD-7), Patient Health Questionnaire (PHQ-2) y Escala de Vulnerabilidad al Estrés de Smith y Miller. Resultados: Se incluyó a 36 pacientes, todas mujeres, con edades comprendidas entre los 20 y 77 años. El 27,8 % tenía depresión, según los puntos de corte del PHQ-2. El 22,2 % presentaba ansiedad, según los puntos de corte de GAD-7. En cuanto al estrés, el 22,2 % tenía vulnerabilidad a este y el 5,6 % era seriamente vulnerable. Conclusión: Depresión, ansiedad y vulnerabilidad al estrés son comorbilidades frecuentemente observadas en pacientes con artritis reumatoidea. Se requieren de intervenciones específicas de salud mental para abordar estas cuestiones y mejorar la calidad de vida de los pacientes afectados.

Background: Observational studies have described a high prevalence of depression and anxiety in rheumatoid arthritis: major depressive disorders are detected in 17 % of patients with the pathology, and local and systemic inflammation play an important role in anxiety and depression. Objectives: The overall objective of this research was to determine the frequency of anxiety, depression, and vulnerability to stress in patients diagnosed with rheumatoid arthritis. Materials and methods: This was an observational, descriptive, temporally prospective, cross-association study. Sampling was non-probabilistic of consecutive cases. We included adults with a diagnosis of rheumatoid arthritis who consulted at the Rheumatology Department of the Hospital de Clínicas between August and October 2022. The following instruments were used for psychiatric diagnosis: Generalized Anxiety Scale (GAD-7), Patient Health Questionnaire (PHQ-2) and Smith and Miller's Stress Vulnerability Scale. Results: Thirty-six patients, all women, aged between 20 and 77 years, were included in the study. The 27.8 % had depression, according to the cut-off points of the PHQ-2. Anxiety was present in 22.2 %, according to the GAD-7 cut-off points. Regarding stress, 22.2 % were vulnerable to stress and 5.6 % were seriously vulnerable. Conclusion: Depression, anxiety and vulnerability to stress are frequently observed comorbidities in patients with rheumatoid arthritis. Specific mental health interventions are required to address these issues and improve the quality of life of affected patients.

A rat model of rheumatoid arthritis: TDZD-8 is associated with the protection against the induction of the synovium knee joint IL-17A/GSK3beta/ROS/alpha-SMA axis of fibrosis / Un modelo de rata de artritis reumatoide: TDZD-8 está asociado con la protección contra la inducción del eje de fibrosis de la articulación sinovial de la rodilla IL-17A/GSK3ß/ROS/α-SMA

SUMMARY: Rheumatoid arthritis (RA) that affects the synovial knee joint causes swelling of the synovial membrane and tissue damage. Interleukin-17A (IL-17A) and the enzyme glycogen synthase kinase-3β (GSK3β) are involved in the pathogenesis of RA. The link between IL-17A, GSK3β, the oxidative stress, and the profibrogenic marker alpha-smooth muscle actin (α-SMA) with and without TDZD-8, GSK3β inhibitor has not been studied before. Consequently, active immunization of rats was performed to induce RA after three weeks using collagen type II (COII) injections. The treated group received daily injection of 1 mg/kg TDZD-8 for 21 days following the immunization protocol (COII+TDZD-8). Blood and synovium tissue samples were harvested at the end of the experiment. RA development was confirmed as corroborated by a substantial increase in blood levels of the highly specific autoantibody for RA, anti-citrullinated protein antibody as well as augmentation of reactive oxidative species (ROS) levels measured as lipid peroxidation. RA induction also increased synovium tissue levels of IL-17A and the profibrogenic marker, α-SMA. All these parameters seemed to be significantly (p<0.0001) ameliorated by TDZD-8. Additionally, a significant correlation between IL-17A, ROS, and α-SMA and biomarkers of RA was observed. Thus, knee joint synovium RA induction augmented IL-17A/GSK3β/ROS/α-SMA axis mediated arthritis in a rat model of RA, which was inhibited by TDZD-8.

La artritis reumatoide (AR) que afecta la articulación sinovial de la rodilla provoca inflamación de la membrana sinovial y daño tisular. La interleucina-17A (IL-17A) y la enzima glucógeno sintasa quinasa-3β (GSK3β) están involucradas en la patogenia de la AR. No se ha estudiadol vínculo entre IL-17A, GSK3β, el estrés oxidativo y el marcador profibrogénico actina de músculo liso alfa (α-SMA) con y sin inhibidor de TDZD-8, GSK3β. En consecuencia, se realizó una inmunización activa de ratas para inducir la AR después de tres semanas usando inyecciones de colágeno tipo II (COII). El grupo tratado recibió una inyección diaria de 1 µg/ kg de TDZD-8 durante 21 días siguiendo el protocolo de inmunización (COII+TDZD-8). Se recogieron muestras de sangre y tejido sinovial al final del experimento. El desarrollo de AR se confirmó como lo corroboró el aumento sustancial en los niveles sanguíneos del autoanticuerpo altamente específico para AR, el anticuerpo antiproteína citrulinada, así como el aumento de los niveles de especies oxidativas reactivas (ROS) medidos como peroxidación lipídica. La inducción de AR también aumentó los niveles de tejido sinovial de IL-17A y el marcador profibrogénico, α-SMA. Todos estos parámetros parecían mejorar significativamente (p<0,0001) con TDZD-8. Además, se observó una correlación significativa entre IL- 17A, ROS y α-SMA y biomarcadores de AR. Por lo tanto, la inducción de AR en la sinovial de la articulación de la rodilla aumentó la artritis mediada por el eje IL-17A/GSK3β/ROS/α-SMA en un modelo de rata de AR, que fue inhibida por TDZD-8.

Acercamiento teórico al uso de la imagenología en el diagnóstico temprano de la artritis reumatoide / Theoretical approach to the use of imaging in the early diagnosis of rheumatoid arthritis

La artritis reumatoide es una enfermedad progresiva, con manifestaciones clásicas y tempranas como es la afectación de las articulaciones pequeñas de las manos y los tobillos. Se realizó una revisión bibliográfica de los documentos publicados entre 2017 y 2022. Se realizó una lectura preliminar de 37 artículos que cumplían con los criterios de inclusión, y finalmente se seleccionaron 23 artículos, de los cuales se tomó el contenido de mayor importancia. La ecografía es una técnica fiable y más sensible que la exploración clínica en el estudio de la enfermedad músculo-esquelética, pues permite una exploración multiplanar y dinámica, lo que resulta en un diagnóstico más exacto. La técnica Doppler constituye un complemento útil en el seguimiento de estos pacientes. Esta enfermedad es recurrente en las consultas de Reumatología, por tanto, en su valoración inicial, la utilidad de los medios diagnósticos, especialmente la ecografía, tiene gran importancia.

Rheumatoid arthritis is a progressive disease, with classic and early manifestations such as involvement of the small joints of the hands and ankles. We conducted a bibliographic review of the documents published between 2017 and 2022. A preliminary reading of 37 articles that met the inclusion criteria was carried out, and 23 articles were finally selected, from which the most important content was taken. Ultrasound is a more sensitive and reliable technique than clinical examination for the study of musculoskeletal disease, since it allows a multiplanar and dynamic examination, which results in a more accurate diagnosis. Doppler technique is a useful complement in the follow-up of these patients. This disease is recurrent in Rheumatology consultations, that's why in its initial assessment, the usefulness of diagnostic means, especially ultrasound, is of great importance.

Shared epitope classification methods according to Gregersen and de Vries allow adequate characterization of patients with rheumatoid arthritis in a Colombian population

Introduction: The most important genetic association in rheumatoid arthritis (RA) is presented with some alleles from the HLA-DRB1 gene that encode the shared epitope (SE). Objectives: To apply the SE classification methods of Gregersen, de Vries, Raychaudhuri, Mattey, and Tezenas du Montcel in a group of Colombian patients with RA and determine the most common HLA-DRB1 alleles in the population. Methods: RA diagnosis, genetic study of the HLA-DRB1 region using Luminex technology in 50 RA and 50 healthy subjects. For the classification analysis, Fisher's exact test and chi-squared test were applied. Tables were created to count the RA-related alleles. We used odds ratio to determine the risk between the presence of the shared epitope (SE) and anti-cyclic citrullinated peptides (Anti-CCP). Results: Gregersen and de Vries methods were suitable for the characterization of RA in this population (p = .006). The most prevalent HLA-DRB1 alleles in the RA group were 14:02,04:04, 08:02,04:05, and 10:01. High frequencies of the 07:01, 03:01,13:02,01:02, and 12:01 HLA-DRB1 alleles were found in the healthy population. HLA-DRB1 alleles with similar distribution in both populations were 04:07, 15:01, 11:01, 16:02, and 01:01. A high frequency of SE + was observed in Anti-CCP + individuals (63.15%); however, this was not statistically significant [OR2.4 (.63-9.01); p = .19]. Conclusion: The SE classification methods of Gregersen and de Vries were adequate in characterizing RA in a Colombian population group. An equivalence of 100% was verified between the susceptibility alleles defined by de Vries and the alleles assigned as SE according to Gregersen.

Introducción: La asociación genética más importante en artritis reumatoide (AR) se presenta con algunos alelos del gen HLA DRB1 que codifican el epítope compartido (EC). Objetivos: Aplicar los métodos de clasificación de EC de Gregersen et al., de Vries et al., Raychaudhuri et al., Mattey et al., y Tezenas du Montcel et al., en un grupo de pacientes colombianos con AR, y determinar los alelos HLA DRB1 más frecuentes en esta población. Métodos: Diagnóstico para AR, estudio genético de la región HLA DRB1 por tecnología Luminex® de 50 sujetos AR y 50 sanos. Para análisis comparativos de clasificaciones EC, se aplicaron las pruebas test exacto de Fisher y Chi-cuadrado y se realizaron tablas de conteos para los alelos relacionados con AR. Se estimó la razón de odds para determinar el riesgo entre la presencia de EC y los anticuerpos antipéptidos cíclicos citrulinados (anti-PCC). Resultados: Los métodos de Gregersen et al. y de Vries et al. fueron adecuados para la caracterización de AR en esta población (p = 0,006). Los alelos HLA DRB1 más prevalentes en el grupo AR fueron 14:02, 04:04, 08:02, 04:05 y 10:01. Se encontraron altas frecuencias de los alelos HLA DRB1 07:01, 03:01,13:02, 01:02 y 12:01 en población sana. Alelos HLA DRB1 con distribución similar en ambas poblaciones fueron: 04:07, 15:01, 11:01, 16:02 y 01:01. Se observó alta frecuencia de individuos EC+ en el grupo AR anti-PCC+ (63,15%); no obstante, sin asociación estadística (OR: 2,4 [0,63-9,01]; p = 0,19). Conclusión: Los métodos de clasificación para EC de Gregersen et al. y de Vries et al. fueron adecuados caracterizando AR en un grupo de población colombiana. Se corroboró equivalencia del 100% entre los alelos de susceptibilidad definidos por de Vries y los alelos asignados como EC según Gregersen et al.

Periodontite associada à artrite reumatoide: o papel das redes extracelulares de neutrófilos (NETs) / Periodontitis associated with rheumatoid arthritis: the role of neutrophil extracellular traps (NETs)

Introdução: As redes extracelulares de neutrófilos (NETs) são apontadas como um dos mecanismos relevantes na patogênese da periodontite e artrite reumatoide (AR). No entanto, permanece pouco compreendido a participação das NETs como mecanismo de ligação entre as duas doenças. Objetivos: 1) Investigar a concentração das NETs na saliva, no plasma e in vitro em indivíduos com AR e controles saudáveis e a associação com a periodontite e atividade da AR; 2) Avaliar o impacto do tratamento periodontal não cirúrgico na concentração das NETs na saliva e no plasma; 3) Investigar a associação entre a presença de polimorfismos de nucleotídeo único no gene codificador da enzima peptidil arginina deaminase 4 (PAD4) com a AR, a produção de NETs in vitro e a periodontite; 4) Sistematizar as evidências disponíveis na literatura sobre o efeito do tratamento periodontal não cirúrgico sobre os principais parâmetros clínicos e laboratoriais da AR e score de atividade da doença 28 (DAS28). Material e Métodos: Para atender aos objetivos 1 e 2, a concentração de NETs na saliva, no plasma e na cultura de neutrófilos isolados do sangue periférico foi determinada por meio da identificação do complexo mieloperoxidase (MPO)-DNA com o uso do kit PicoGreen®. Para atender ao objetivo 3 foi realizada a extração do DNA genômico das células mononucleares do sangue periférico de indivíduos com AR e controles e foi realizada a genotipagem para os polimorfismos de nucleotídeo único PADI4_89, PADI4_90, PADI4_92 e PADI_104. Para atender ao objetivo 4 foi realizada uma overview incluindo revisões sistemáticas que avaliaram o efeito do tratamento periodontal não cirúrgico sobre os parâmetros da AR. A busca foi realizada nas principais bases de dados, sem restrição de idioma ou data de publicação. Foi realizada ainda uma meta-análise incluindo dados dos estudos primários identificados nas revisões sistemáticas analisadas. Resultados: 1) e 2) Indivíduos com AR e com periodontite apresentaram maior concentração de NETs na saliva, no plasma e in vitro. O tratamento periodontal não cirúrgico reduziu a concentração de NETs na saliva e plasma de indivíduos com AR. 3) Não foi observada associação entre a presença de genótipos polimórficos e a AR. A presença de um haplótipo homozigoto para o polimorfismo foi associada a uma maior produção de NETs in vitro e piores parâmetros periodontais. 4) Foram incluídas na overview nove revisões sistemáticas. Os principais desfechos avaliados foram DAS28; proteína C-Reativa e/ou velocidade de hemossedimentação. A meta-análise mostrou que o tratamento periodontal não cirúrgico resultou em diminuição significativa do DAS28. Conclusão: A concentração das NETs na saliva, no plasma e na cultura de neutrófilos de sangue periférico está associada a AR e a periodontite, podendo representar o elo entre as duas doenças. O tratamento periodontal não cirúrgico leva à redução da atividade da AR. Polimorfismos no gene PADI4 estão associados a produção de NETs in vitro e à presença de periodontite.

Introduction: Neutrophil extracellular traps (NETs) are recognized as one of the relevant mechanisms in the pathogenesis of periodontitis and rheumatoid arthritis (RA). However, the participation of NETs as a linking mechanism between the two diseases remains poorly understood. Objectives: 1) To investigate the concentration of NETs in saliva, plasma, and in vitro in individuals with RA and healthy controls and the association of NETs with periodontitis and RA activity; 2) To evaluate the impact of non-surgical periodontal treatment on the concentration of NETs in saliva and plasma; 3) To investigate the association between the presence of single nucleotide polymorphisms in the gene coding for the enzyme peptidyl arginine deaminase 4 (PAD4) with RA, in vitro production of NETs, and periodontitis; 4) To systematize the evidence available in the literature on the effect of non-surgical periodontal treatment on the main clinical and laboratory parameters of RA and disease activity score 28 (DAS28). Material and Methods: To accomplish Objectives 1 and 2, the concentration of NETs in saliva, plasma, and culture of neutrophils isolated from peripheral blood was determined by identifying the myeloperoxidase (MPO)-DNA complex using the PicoGreen kit®. To accomplish Objective 3, genomic DNA was extracted from peripheral blood mononuclear cells of individuals with RA and healthy controls, and genotyping was performed for single nucleotide polymorphisms PADI4_89, PADI4_90, PADI4_92, and PADI_104. To accomplish the Objective 4, an overview, including systematic reviews that evaluated the effect of non-surgical periodontal treatment on RA parameters, was performed. The search was carried out in the main databases, with no restriction on language or date of publication. A meta- analysis, including data from the primary studies identified in the analyzed systematic reviews, was also performed. Results: For Objectives 1 and 2, individuals with RA and periodontitis showed a higher concentration of NETs in saliva, plasma, and in vitro. Non-surgical periodontal treatment reduced the concentration of NETs in saliva and plasma of individuals with RA. For Objective 3, no association between the presence of polymorphic genotypes and RA was observed. The presence of a homozygous haplotype for the polymorphism was associated with a higher production of NETs in vitro and worse periodontal parameters. For Objective 4, nine systematic reviews were included in the overview. The main outcomes evaluated were DAS28, C-Reactive protein, and/or erythrocyte sedimentation rate. The meta- analysis showed that non-surgical periodontal treatment resulted in a significant decrease in DAS28. Conclusion: The concentration of NETs in saliva, plasma and culture of peripheral blood neutrophils is associated with RA and periodontitis and may represent the link between the two diseases. Non-surgical periodontal treatment leads to reduced RA activity. Polymorphisms in the PADI4 gene are associated with the in vitro production of NETs and with presence of periodontitis.

Expenditure of biological drugs for rheumatoid arthritis treatment in the Brazilian public health system

ABSTRACT OBJECTIVE This work aims to analyze the quantity and expenses related to biological drugs used for the treatment of rheumatoid arthritis (RA) in outpatient public care within the Brazilian Unified Health System (SUS). METHODS It is a cross-sectional descriptive study based on secondary data from a historical series, referring to the purchase, volume, and the number of patients treated with different biological drugs (infliximabe, etanercept, adalimumab, rituximab, abatacept, tocilizumab, golimumab, and certolizumab pegol) for RA treatment in outpatient care from 2012 to 2017. The data were extracted from the SUS Outpatient Information System database-SIA/SUS and included ten drugs used for RA treatment. The study assessed the quantity and expenditure of these drugs, the number of RA patients treated, and the expenditure by RA subtypes. The National Broad Consumer Price Index was used to adjust the expenditures for December 2017. RESULTS The Ministry of Health allocated approximately $500 million to provide about 2 million units of biological drugs for RA patients from 2012 to 2017. The supply of adalimumab 40 mg and etanercept 50 mg accounted for 68.3% of the total expenditure. The subtypes "other rheumatoid arthritis with rheumatoid factor" (ICD-10 M05.8), "rheumatoid arthritis without rheumatoid factor" (ICD-10 M06.0), and "Felty's syndrome" (M05. 0) represented 84.5% of the total expenditures. The proportion of patients treated with biological drugs increased by 33.0%. There was a significant 83.0% increase in the number of patients using biological drugs compared to the overall number of RA patients treated during the study period. CONCLUSIONS The results obtained allow us to draw a more recent profile of expenditure on RA treatment and indicate trends in the use of biological drugs for this condition, generating data that can support management decisions in public health policies.

Periodontitis in rheumatoid arthritis: a case-control study in a brazilian sample

To investigate the presence of periodontitis in RA patients comparing it with controls in a Brazilian sample. Methods: This is a case control study conducted in a public health rheumatologic center. One hundred and sixteen RA patients and 68 paired controls were compared for epidemiological data and presence of periodontal disease evaluated by number of remaining teeth, presence of bacterial plaque, bleeding on probing, probing depth and clinical level of gingival insertion. In addition, data on comorbidities was collected. Results: RA patients and controls have the same amount of teeth loss (P = 0.84). RA patients had more calculus (P = 0.02); dental plaques (P = 0.04); gingival recession (P = 0.02) and bleeding (P = 0.01). Although the number of individuals with periodontitis was higher in RA patients, the severity of periodontitis was similar in both groups (P = ns). Presence of diabetes and hypothyroidism also associated with periodontitis (P = 0.01 and 0.02 respectively). In a model of logistic regression built to assess the independence of association of RA and its comorbidities with periodontitis, only diabetes and RA remained independent. Conclusion: This case control study shows higher frequency of periodontitis in RA patients than controls

Transferencia tendinosa del primer radial externo al cubital posterior: ¿mejora significativamente la corrección de la desviación radial en la muñeca reumática? / Extensor carpi radialis longus tendon transfer to extensor carpi ulnaris: Does it significantly improve the correction of radial deviation in the rheumatoid wrist?

Introducción: La artritis inflamatoria puede conducir al síndrome de caput ulnae con desviación radial de la muñeca y los meta-carpianos. El tratamiento es la artroplastia de rescate de la articulación radiocubital distal y la reubicación del tendón del extensor cubital del carpo (ECC). Sin embargo, puede ser débil para corregir la desviación. Clayton describió la transferencia del tendón del extensor radial largo del carpo (ERLC) al ECC. El objetivo de este estudio fue comparar la corrección de la desviación radial de los metacarpianos en pacientes operados con transferencia del ERLC al ECC o sin ella. Materiales y Métodos: Estudio de cohorte retrospectiva en pacientes con artritis reumatoide y síndrome de caput ulnae, sometidos a tenoplastia del ECC con ERLC o sin este procedimiento. Se formaron dos grupos: pacientes con transferencia (grupo A) y sin transferencia (grupo B). Se calculó la corrección del ángulo de Clayton comparando las medidas preoperatoria y del último control, y se compararon los resultados. Resultados: El seguimiento promedio fue de 28 meses. El ángulo de Clayton preoperatorio promedio era de 44,54° (DE ± 7,52) en el grupo A y 60,24° (DE ± 12,28) en el grupo B (p = 0,001). El promedio de corrección fue de 6,57° (DE ± 4,11) y 0,95° (DE ± 9,17), respectivamente (p = 0,026). Conclusiones: El nivel de corrección fue mayor en el grupo A. No obstante, si bien ambas técnicas lograron mejorar el ángulo, el grado de corrección podría estar supeditado a la magnitud del ángulo preoperatorio. Nivel de Evidencia: IV

Introduction: Inflammatory arthritis can lead to caput ulnae syndrome with radial deviation of the wrist and metacarpals. Treatment includes salvage arthroplasty of the distal radioulnar joint and relocation of the extensor carpi ulnaris (ECU) tendon. However, the ECU may be too weak to correct the deviation. To strengthen the ECU, Clayton described the transfer of the extensor carpi radialis longus (ECRL) tendon to the ECU. The aim of this work is to compare the correction of the radial deviation of the metacarpals in patients with and without transfer of the ECRL to the ECU. Materials and Methods: Retrospective cohort study. Patients with rheumatoid arthritis and caput ulnae syndrome, treated with ECU tenoplasty with or without ECRL, were included. The patients were divided into two groups: ECRL to ECU transfer (group A) and no transfer (Group B). The correction of the metacarpal-radial angle (Clayton's angle) was calculated by comparing the measurements before surgery and at end of follow-up, and the results obtained were compared. Results: The average follow-up was 28 months. The preoperative Clayton angle was on average 44.54° (SD ± 7.52) in group A and 60.24° (SD ± 12.28) in group B (p = 0.001). The correction average was 6.57° (SD ± 4.11) and 0.95° (SD ± 9.17) for group A and B respectively (p=0.026). Conclusions: The level of correction obtained was higher in group A. However, although both techniques managed to improve the angle, the degree of correction could be subject to the magnitude of the preoperative angle. Level of Evidence: IV

Total glucosides of Rhizoma Smilacis Glabrae: a therapeutic approach for psoriasis by regulating Th17/Treg balance / 中国天然药物

Total glucosides of Rhizoma Smilacis Glabrae (RSG) are selective immunosuppressants that exhibit primary efficacy in the treatment of rheumatoid arthritis through targeted inhibition of activated T cells. In this study, we aimed to investigate the potential application of RSG in the treatment of psoriasis and elucidate its mechanism of action and material basis. Our findings revealed significant improvements upon administration of RSG in an imiquimod (IMQ)-induced psoriasis model. These improvements were characterized by a remarkable increase in the number of tail scales in mice and a substantial amelioration of skin erythema, ulceration, and flaking. By transcriptome sequencing and T-cell flow sorting assay, we identified notable effects of RSG on the modulation of various cellular processes. Specifically, RSG prominently down-regulated the Th17/Treg ratio in damaged skin tissues and reduced the proportion of G2 phase cells. Furthermore, RSG exhibited a stimulatory effect on the proliferation and differentiation of epithelial cells. Of particular interest, we discovered that β-sitosterol, sitostenone, stigmasterol, smiglanin, and cinchonain Ib displayed potent inhibitory effects on the IL-17-mediated inflammatory response in HaCaT cells. In summary, our study highlights the therapeutic potential of RSG in the treatment of psoriasis, attributed to its ability to regulate the Th17/Treg balance. These findings contribute to the development of new indications for RSG and provide a solid theoretical foundation for further exploration in this field.

Neutrophil-lymphocyte and platelet-lymphocyte ratios for assessing disease activity in patients with rheumatoid arthritis receiving tofacitinib treatment / 南方医科大学学报

OBJECTIVE@#To evaluate the value of neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) for assessing disease activity in patients with rheumatoid arthritis (RA) treated with tofacitinib.@*METHODS@#This retrospective study was conducted among 98 RA patients in active stage treated with tofacitinib in Third Xiangya Hospital and 100 healthy control subjects from the Health Management Center of the hospital from 2019 to 2021. We collected blood samples from all the participants for measurement of erythrocyte sedimentation rate (ESR), high-sensitivity C-reactive protein (hs-CRP), interleukin-6 (IL-6) and other blood parameters 1 month before and 6 months after tofacitinib treatment. We further evaluated PLR and NLR before and after tofacitinib treatment in the RA patients, and analyzed their correlations with RA disease activity.@*RESULTS@#PLR and NLR increased significantly in RA patients as compared with the healthy controls. In the RA patients, PLR and NLR were positively correlated with the levels of hs- CRP, ESR, IL- 6, Disease Activity Score of 28 joints-ESR (DAS28-ESR), anti-cyclic citrullinated peptide (CCP), and rheumatoid factor (RF) before and after tofacitinib treatment. Tofacitinib treatment for 6 months significantly decreased hs-CRP, ESR, IL-6, CCP, RF and DAS28-ESR levels in the RA patients.@*CONCLUSION@#NLR and PLR can be useful biomarkers for assessing disease activity in RA patients treated with tofacitinib.

Expert recommendations for the chronic disease management of rheumatic arthritis / 中华内科杂志

Rheumatoid arthritis (RA) is a chronic, systemic autoimmune disease that poses a major healthcare challenge. In China, approximately 5 million patients are reported to have RA. Notably, Chinese patients with RA often experience a prolonged disease course and increased disease activity, leading to a substantial disease burden. The Chronic Disease Management Group of the Special Committee on Rheumatology and Immunology of Cross-Straits Medicine Exchange Association has advocated for an all-encompassing, continuous, and proactive scientific management approach for RA. This initiative has culminated in the formulation of the "Expert Recommendations for the Chronic Disease Management of Rheumatoid Arthritis", a comprehensive guideline developed through extensive consultations and consideration of the unique characteristics of RA. We have outlined 16 expert recommendations, addressing 10 key aspects central to RA management. We aim to enhance treatment outcomes for patients, streamline the distribution of medical resources, and reduce treatment-related burden on society, families, and individuals affected by this condition.

Flare and change in disease activity among patients with stable rheumatoid arthritis following coronavirus disease 2019 vaccination: A prospective Chinese cohort study / 中华医学杂志(英文版)

BACKGROUND@#Vaccination has been shown effective in controlling the global coronavirus disease 2019 (COVID-19) pandemic and reducing severe cases. This study was to assess the flare and change in disease activity after COVID-19 vaccination in patients with stable rheumatoid arthritis (RA).@*METHODS@#A prospective cohort of RA patients in remission or with low disease activity was divided into a vaccination group and a non-vaccination group based on their COVID-19 vaccination status. Each of them was examined every 3 to 6 months. In the vaccination group, disease activity was compared before and after vaccination. The rates of flare defined as disease activity scores based on 28-joint count (DAS28) >3.2 with ΔDAS28 ≥0.6 were compared between vaccination and non-vaccination groups.@*RESULTS@#A total of 202 eligible RA patients were enrolled. Of these, 98 patients received no vaccine shot (non-vaccination group), and 104 patients received two doses of vaccine (vaccination group). The median time interval from pre-vaccination visit to the first immunization and from the second dose of vaccine to post-vaccination visit was 67 days and 83 days, respectively. The disease activity scores at pre-vaccination and post-vaccination visits in the vaccination group patients were similar. At enrollment, gender, RA disease course, seropositivity, and disease activity were comparable across the two groups. Flare was observed in five (4.8%) of the vaccination group patients and nine (9.2%) of the non-vaccination group patients at post-vaccination assessment ( P  = 0.221). In terms of safety, 29 (27.9%) patients experienced adverse events (AEs) after vaccination. No serious AEs occurred.@*CONCLUSIONS@#COVID-19 vaccinations had no significant effect on disease activity or risk of flare in RA patients in remission or with low disease activity. Patients with stable RA should be encouraged to receive the COVID-19 vaccination.

Moxibustion as an adjunctive treatment for rheumatoid arthritis and its effects on the serum levels of SOST and β-catenin / 中国针灸

OBJECTIVES@#To observe the clinical efficacy of moxibustion as an adjunctive treatment for rheumatoid arthritis (RA) based on conventional medication and its effects on serum sclerostin (SOST) and β-catenin levels, exploring the potential mechanisms by which moxibustion may protect joint bones in RA patients.@*METHODS@#Seventy-six RA patients were randomly divided into an observation group (38 cases, 3 cases dropped out) and a control group (38 cases, 4 cases were eliminated, 2 cases dropped out). The patients in the control group were treated with conventional oral medication; based on the treatment of the control group, the patients in the observation group were treated with moxibustion. The direct moxibustion was applied at Zusanli (ST 36) on both sides and ashi points around small joints, and indirect moxibustion was applied at Shenshu (BL 23) on both sides and ashi points around large joints. The treatment was given three times a week for a total of 5 weeks. The count of pain and swollen joint, morning stiffness score, disease activity score of 28 joints (DAS28), visual analogue scale (VAS) score, health assessment questionnaire (HAQ) score, and serum levels of SOST, β-catenin, and tumor necrosis factor-α (TNF-α) were evaluated before and after treatment in the two groups.@*RESULTS@#Compared those before treatment, after treatment, both groups showed a reduction in pain and swollen joint count (P<0.01, P<0.05), morning stiffness, DAS28, VAS, and HAQ scores (P<0.01, P<0.05), with the observation group having lower scores than the control group (P<0.01). Serum levels of SOST, β-catenin, and TNF-α after treatment in the observation group were lower than those in both before treatment and the control group (P<0.01, P<0.05). There was a positive correlation between the difference in serum β-catenin levels before and after treatment and the difference in serum SOST (r=0.578, P<0.001) and TNF-α (r=0.403, P<0.05) levels in the observation group.@*CONCLUSIONS@#In addition to medication, moxibustion as an adjunctive treatment could significantly alleviate joint pain and reduce disease activity in RA patients, suggesting a potential role in joint protection. This mechanism may be related to the inhibition of the inflammatory factor TNF-α, regulation of β-catenin levels, and reduction in the production of the endogenous negative regulator protein SOST within the Wnt/β-catenin signaling pathway.

Effect of different suspension moxibustion methods on syndrome characteristics of rats with rheumatoid arthritis of heat bi syndrome based on "moxibustion can be used for heat syndrome" / 中国针灸

OBJECTIVE@#To observe the effects of different suspension moxibustion methods on the syndrome characteristics and inflammatory factors of rats with rheumatoid arthritis (RA) of heat bi syndrome and to prove the concept of "moxibustion can be used for heat syndrome".@*METHODS@#Among seventy Wistar rats, 12 rats were randomly selected as a normal group, and the remaining rats were induced by collagen combined with wind, dampness, and heat environmental stimulation to establish the RA model of heat bi syndrome. Forty-eight rats with successful model establishment were further randomly divided into a model group and three moxibustion groups (mild moxibustion group, rotating moxibustion group and sparrow-pecking moxibustion group), with 12 rats in each group. The acupoints "Quchi" (LI 11), "Dazhui" (GV 14) and ashi point were used in all moxibustion groups, with mild moxibustion, rotating moxibustion, and sparrow-pecking moxibustion intervention given respectively, each acupoint was treated with moxibustion for 10 min a day, and 6 days were considered one course of treatment, with a total of three courses. After the intervention, the arthritis index (AI), the Evans blue (EB) extravasated volume in the soft tissue of the right hind paw, and the levels of tumor necrosis factor (TNF)-α and interleukin (IL)-10 in the serum were measured by ELISA in each group. The volume of the bilateral hind paw was measured; the infrared thermal imaging was collected to analyze the temperature of the plantar area of the bilateral foot pads, and the reaction time of plantar heat pain was calculated before and after modeling, as well as after the 1st, 2nd and 3rd courses of interrention. The ankle dorsiflexion angle of the right hind foot was also measured before and after modeling, as well as after the intervention.@*RESULTS@#After modeling, compared with the normal group, the rats in the model group had more high-temperature areas in the bilateral hind limbs, abnormal AI score, abnormal bilateral hind paw volume, abnormal temperature of the plantar area of the bilateral foot pads, abnormal foot pain response time, abnormal right hind ankle dorsiflexion angle, abnormal right hind paw soft tissue EB extravasation, and abnormal serum TNF-α and IL-10 levels (P<0.01, P<0.05). After the intervention, compared with the model group, the rats in each moxibustion group had decreased or disappeared high-temperature areas in the bilateral hind limbs, EB extravasated volume in the soft tissue of the right hind paw was reduced (P<0.05), and the right ankle dorsiflexion angle was increased (P<0.05), serum level of TNF-α was reduced, and level of IL-10 increased (P<0.05); the AI scores in the mild moxibustion group and the sparrow-pecking moxibustion group was decreased (P<0.01, P<0.05). After the 1st, 2nd and 3rd courses of intervention, compared with the model group, the bilateral hind paw volume of rats in each moxibustion group was decreased (P<0.05, P<0.01), and plantar heat pain reaction time was increased (P<0.05). After the 2nd course and the 3rd course of intervention, the temperature of the right hind paw pad area was decreased in each moribustion group (P<0.05); after the 3rd courses of intervention, the temperature of the left hind paw pad area was decreased in the mild moxibustion group (P<0.05).@*CONCLUSION@#Suspension moxibustion could adjust the serum levels of TNF-α and IL-10 to improve the syndrome characteristics of RA rats of heat bi syndrome, such as joint redness, swelling, heat, pain and activity restriction. The effect of mild moxibustion is the most prominent. The findings could provide scientific basis for "moxibustion can be used for heat syndrome".