To provide long-term, real-world safety and effectiveness data for mepolizumab treatment in eosinophilic granulomatosis with polyangiitis in Japan.

We studied the current state and factors associated with the acceptance or hesitancy of booster doses of the coronavirus disease 2019 (COVID-19) vaccine among patients with autoimmune and rheumatic diseases (ARDs) in Japan.

To describe safety and efficacy of filgotinib 200 or 100 mg (FIL200/FIL100) in Japanese patients with rheumatoid arthritis in a long-term extension (LTE; NCT03025308).

Some patients with sarcoidosis achieve spontaneous remission, whereas others repeatedly experience relapse. We examined differences in the clinical course of active sarcoidosis according to peripheral blood immunophenotypes before treatment.

To evaluate immunoglobulin A vasculitis (IgAV) patients with gastrointestinal (GI) tract involvement and to reveal the relationship between the location and extent of the affected intestinal segment detected on the initial abdominal ultrasound (US) and GI tract bleeding.

This study determined whether alkaline phosphatase can be used to distinguish giant cell arthritis complications in patients with polymyalgia rheumatica.

Systemic sclerosis is characterised by ischaemic skin ulcers on the fingertips, and low-energy shock wave therapy is suggested as a novel treatment for ischaemic lesions with angiogenic effects. We aimed to investigate the efficacy and safety of shock wave therapy for skin ulcers in patients with systemic sclerosis.

To elucidate the effectiveness of dapagliflozin, a sodium-glucose cotransporter 2 (SGLT-2) inhibitor, on renal function in patients with rheumatic musculoskeletal diseases complicated by chronic kidney disease (CKD) and identify factors associated with the response to dapagliflozin.

We aimed to analyze the prevalence, mortality, and prognostic factors in systemic sclerosis (SSc) patients with pulmonary hypertension (PH) with or without interstitial lung disease (ILD).

For the diagnosis of IgG4-related dacryoadenitis and sialadenitis, either revised comprehensive diagnostic criteria or organ-specific diagnostic criteria for IgG4-related dacryoadenitis and sialadenitis in 2008 were applied; however, the collected knowledge for IgG4-related dacryoadenitis and sialadenitis required us to revise the criteria for IgG4-related dacryoadenitis and sialadenitis.

To elucidate the therapeutic effect of orthopedic surgical intervention (OSI) in difficult-to-treat rheumatoid arthritis (D2T RA) compared with non-D2T RA.

We assessed physical function by three different methods in patients with knee osteoarthritis just before total knee arthroplasty (TKA) and investigated the relationship between impairment of mobility and preoperative factors.

This study was conducted to investigate factors involved in anaphylaxis related to diclofenac etalhyaluronate (DEH) [product name: Joyclu® (JCL)] (containing DEH and macrogol 400), which is used to treat patients with osteoarthritis.

Urate-lowering efficacy and safety of febuxostat was evaluated in paediatric patients with hyperuricaemia including gout.

This study aims to identify challenges nurses face in providing care to older patients with rheumatoid arthritis (RA) in Japan. Methods: Nurses certified by the Japan Rheumatism Foundation were requested via mail to describe challenges in providing care to older RA patients. Qualitative content analysis was used.

Spondyloarthritis comprises a number of related but different disorders with distinct phenotypes: psoriatic arthritis, reactive arthritis, arthritis related to inflammatory bowel disease, undifferentiated arthritis, and ankylosing spondylitis (the well-known prototypic subtype). Differentiating rheumatic diseases, such as rheumatoid arthritis, synovitis-acne-pustulosis-hyperostosis-osteitis syndrome, pustulotic arthro-osteitis, gout and spondyloarthritis, is difficult because they all may manifest swelling at the upper anterior chest wall, often involve the sternocostal and/or sternoclavicular joints, and clearly show cutaneous nodular symptoms, so that they may mimic Tietze's syndrome in the presentation. Tietze's syndrome is a benign, self-limiting entity with tender, non-suppurative swelling in the upper anterior chest wall, especially at the second and third costosternal junctions and the sternoclavicular joint. Therefore, distinguishing spondyloarthritis from Tietze's syndrome during an entire disease course is important, even after an initial tentative diagnosis. This article aims to re-evaluate the importance of Tietze's syndrome in the differential diagnosis of spondyloarthritis, while keeping in mind information about rheumatic diseases affecting the upper anterior chest wall.

Serum creatinine and estimated glomerular filtration ratio (eGFR) are factors associated with hyperuricemia, though which is more closely associated with hyperuricemia remains unclear.

To investigate the effect of the use of biologic disease-modifying anti-rheumatic drugs (bDMARDs) on surgical site infection (SSI) and delayed wound healing (DWH) in rheumatoid arthritis (RA) patients undergoing orthopaedic surgery.

The commonest type of eukaryotic RNA modification, N6-methyladenosine (m6A), has drawn increased scrutiny in the context of pathological functioning as well as relevance in determination of RNA stability, splicing, transportation, localization, and translation efficiency. The m6A modification plays an important role in several types of arthritis, especially osteoarthritis and rheumatoid arthritis. Recent studies have reported that m6A modification regulates arthritis pathology in cells, such as chondrocytes and synoviocytes via immune responses and inflammatory responses through functional proteins classified as writers, erasers, and readers. The aim of this review was to highlight recent advances relevant to m6A modification in the context of arthritis pathogenesis and detail underlying molecular mechanisms, regulatory functions, clinical applications, and future perspectives of m6A in arthritis with the aim of providing a foundation for future research directions.