{"owner": "ArrayExpress Uploader", "pop_total": 0, "id": 3788, "factors": [{"GSM580950": {"clinical information": "before methotrexate treatment"}}, {"GSM58095": {"clinical information": "after methotrexate treatment "}}, {"GSM580950": {"clinical information": "before methotrexate treatment"}}, {"GSM58095": {"clinical information": "after methotrexate treatment "}}, {"GSM580950": {"clinical information": "before methotrexate treatment"}}, {"GSM58095": {"clinical information": "after methotrexate treatment "}}, {"GSM580950": {"clinical information": "before methotrexate treatment"}}, {"GSM58095": {"clinical information": "after methotrexate treatment "}}, {"GSM580950": {"clinical information": "before methotrexate treatment"}}, {"GSM58095": {"clinical information": "after methotrexate treatment "}}, {"GSM580950": {"clinical information": "before methotrexate treatment"}}, {"GSM58095": {"clinical information": "after methotrexate treatment "}}, {"GSM580950": {"clinical information": "before methotrexate treatment"}}, {"GSM58095": {"clinical information": "after methotrexate treatment "}}, {"GSM580950": {"clinical information": "before methotrexate treatment"}}, {"GSM58095": {"clinical information": "after methotrexate treatment "}}, {"GSM580950": {"clinical information": "before methotrexate treatment"}}, {"GSM58095": {"clinical information": "after methotrexate treatment "}}, {"GSM580950": {"clinical information": "before methotrexate treatment"}}, {"GSM58095": {"clinical information": "after methotrexate treatment "}}, {"GSM580950": {"clinical information": "before methotrexate treatment"}}, {"GSM58095": {"clinical information": "after methotrexate treatment "}}], "ownerprofile_id": "arrayexpress_sid", "platform": 4, "summary_wrapped": "Gene expression on peripheral blood mononuclear cells (PBMC) from SPARKS CHARMS juvenile idiopathic arthritis (JIA) cohort pre and post...", "pubmed_id": 20498355, "geo_gse_id": "E-GEOD-23687", "owner_profile": "/profile/8773/arrayexpressuploader", "factor_count": 1, "sample_count": 22, "tags": ["arthritis", "juvenile idiopathic arthritis", "peripheral"], "lastmodified": "Dec.12, 2014", "is_default": false, "geo_gds_id": "", "slug": "transcription-profiling-by-array-of-human-perip-14", "geo_id_plat": "E-GEOD-23687_A-AFFY-44", "name": "Transcription profiling by array of human peripheral blood mononuclear cells from juvenile idiopathic arthritis patients before and after treatment with methotrexate", "created": "Sep.15, 2014", "summary": "Gene expression on peripheral blood mononuclear cells (PBMC) from SPARKS CHARMS juvenile idiopathic arthritis (JIA) cohort pre and post methotrexate therapy. This is the first study to our knowledge, to evaluate gene expression profiles in children with JIA before and after MTX, and to analyze genetic variation in differentially expressed genes. We have identified a gene, which may contribute to genetic variability in MTX response in JIA. PBMC were isolated from blood samples taken from 11 patients with JIA pre methotrexate therapy  and at 6 months into therapy", "source": "http://www.ebi.ac.uk/arrayexpress/experiments/E-GEOD-23687", "species": "human", "sample_source": "http://www.ebi.ac.uk/arrayexpress/experiments/E-GEOD-23687/samples/"}