{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:49:07Z","timestamp":1760147347735,"version":"build-2065373602"},"reference-count":35,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2023,1,28]],"date-time":"2023-01-28T00:00:00Z","timestamp":1674864000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Clinics and Practice"],"abstract":"<jats:p>The incidence of psoriasis, an intractable long-lasting inflammatory skin disease, is increasing and has many complications and comorbidities. Approximately 14% of patients have psoriatic arthritis (PsA). Rheumatoid arthritis (RA) is not a rare disease worldwide, and some patients may have both PsA and RA. In the present study, we encountered seven patients with concurrent diagnoses of RA and psoriatic disease and reported the details of clinical data, treatment efficacy, and X-ray findings. The diagnosis may require not only classification criteria but also a comprehensive judgment in collaboration with rheumatology over time. In addition to methotrexate as an anchor drug, anti-tumor necrosis factor-\u03b1 agents are the first choice of biological agents for treatment, and interleukin (IL)-17 inhibitors may be effective, as IL-17 is also involved in the pathogenesis of RA. When treating patients with both PsA and RA, it may be essential to consider the treatment strategy, depending on which disease is more active.<\/jats:p>","DOI":"10.3390\/clinpract13010016","type":"journal-article","created":{"date-parts":[[2023,1,30]],"date-time":"2023-01-30T11:25:47Z","timestamp":1675077947000},"page":"177-189","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Treatment in Patients with Psoriatic Disease and Rheumatoid Arthritis: Seven Case Reports"],"prefix":"10.3390","volume":"13","author":[{"given":"Tomoko","family":"Akeda","sequence":"first","affiliation":[{"name":"Department of Dermatology, Graduate School of Medicine, Mie University, Tsu 514-8507, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3055-5202","authenticated-orcid":false,"given":"Keiichi","family":"Yamanaka","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Graduate School of Medicine, Mie University, Tsu 514-8507, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,1,28]]},"reference":[{"key":"ref_1","first-page":"279","article-title":"A survey of the status of psoriasis conducted using information obtained from health insurance claims provided by health insurance societies","volume":"30","author":"Terui","year":"2014","journal-title":"Rinshoiyaku"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"e006450","DOI":"10.1136\/bmjopen-2014-006450","article-title":"Epidemiology of psoriasis and palmoplantar pustulosis: A nationwide study using the Japanese national claims database","volume":"5","author":"Kubota","year":"2015","journal-title":"BMJ Open"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1439","DOI":"10.3899\/jrheum.141598","article-title":"Prevalence and Clinical Characteristics of Psoriatic Arthritis in Japan","volume":"42","author":"Ohara","year":"2015","journal-title":"J. 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