{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,25]],"date-time":"2025-12-25T09:05:35Z","timestamp":1766653535865,"version":"3.40.5"},"reference-count":0,"publisher":"Termedia Sp. z.o.o.","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Arch Med Sci"],"published-print":{"date-parts":[[2023,5,1]]},"abstract":"<jats:sec><jats:title>Introduction<\/jats:title><jats:p>To determine the impact of single nucleotide polymorphisms (SNPs) in MTHFR and MTRR genes on disease activity and the presence of MTX therapy adverse events in Polish children with juvenile idiopathic arthritis (JIA).<\/jats:p><\/jats:sec><jats:sec><jats:title>Material and methods<\/jats:title><jats:p>SNP genotyping was performed using genomic DNA isolated from peripheral blood samples.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Patients with MTHFR rs1801133 CT\/TT variant had higher values of inflammatory markers, number of joints with active arthritis, and JADAS-71 value at the baseline of MTX treatment. Children with MTRR rs1801394 AG\/AA variant presented higher inflammatory marker values at JIA diagnosis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>MTHFR rs1801133 and MTRR rs1801394 polymorphisms are associated with higher disease activity at the moment of JIA diagnosis.<\/jats:p><\/jats:sec>","DOI":"10.5114\/aoms\/163259","type":"journal-article","created":{"date-parts":[[2023,5,30]],"date-time":"2023-05-30T12:29:26Z","timestamp":1685449766000},"page":"810-813","source":"Crossref","is-referenced-by-count":1,"title":["The impact of single nucleotide polymorphisms in MTHFR and MTRR genes on disease activity and the presence of methotrexate treatment side effects in children with juvenile idiopathic arthritis"],"prefix":"10.5114","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1487-7156","authenticated-orcid":false,"given":"Justyna","family":"Roszkiewicz","sequence":"first","affiliation":[{"name":"Department of Pediatric Cardiology and Rheumatology, Medical University of Lodz, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0634-0319","authenticated-orcid":false,"given":"Dominika","family":"Micha\u0142ek","sequence":"additional","affiliation":[{"name":"Department of Biostatistics and Translational Medicine, Medical University of Lodz, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6146-2888","authenticated-orcid":false,"given":"Aleksandra","family":"Ryk","sequence":"additional","affiliation":[{"name":"Department of Biostatistics and Translational Medicine, Medical University of Lodz, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4051-0887","authenticated-orcid":false,"given":"Bartosz","family":"Szmyd","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, Lodz, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8421-0448","authenticated-orcid":false,"given":"Elzbieta","family":"Smolewska","sequence":"additional","affiliation":[{"name":"Department of Pediatric Cardiology and Rheumatology, Medical University of Lodz, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"3061","published-online":{"date-parts":[[2023,5,24]]},"container-title":["Archives of Medical Science"],"original-title":[],"link":[{"URL":"https:\/\/www.archivesofmedicalscience.com\/pdf-163259-89810","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.archivesofmedicalscience.com\/pdf-163259-89810","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,5,30]],"date-time":"2023-05-30T12:29:29Z","timestamp":1685449769000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.archivesofmedicalscience.com\/The-impact-of-single-nucleotide-polymorphisms-in-MTHFR-and-MTRR-genes-on-disease,163259,0,2.html"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,5,1]]},"references-count":0,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2023]]}},"alternative-id":["163259"],"URL":"https:\/\/doi.org\/10.5114\/aoms\/163259","relation":{},"ISSN":["1734-1922","1896-9151"],"issn-type":[{"type":"print","value":"1734-1922"},{"type":"electronic","value":"1896-9151"}],"subject":[],"published":{"date-parts":[[2023,5,1]]}}}