PMID- 9893290 OWN - NLM STAT- MEDLINE DCOM- 19990304 LR - 20190915 IS - 0374-5600 (Print) IS - 0374-5600 (Linking) VI - 40 IP - 6 DP - 1998 Dec TI - Juvenile chronic arthritis profile in Greek children. PG - 558-63 AB - BACKGROUND: Juvenile chronic arthritis (JCA) is the commonest autoimmune rheumatic disease in childhood and presents different clinical subtypes. Juvenile chronic arthritis is considered to be of a polygenic nature and its genetic background is still under investigation. The clinical profile of JCA in the Greek population has not been studied completely. This study retrospectively analyzed the clinical and immunological features of JCA in Greek children presented between 1989 and 1994. Human leukocyte antigen (HLA)-positive or -negative associations in the different clinical subtypes were also detected. The findings of this study were correlated with those reported from other populations. METHODS AND RESULTS: Antinuclear antibodies (ANA) anti-ds DNA and anti-extractable nuclear antigen antibodies were estimated by immunofluorescent and ELISA assays. Human leukocyte antigen typing was performed by microlymphocytotoxicity, using immunobeads. The peak ages of JCA onset were between 2 and 5 years and also between 9 and 12 years. There was a high female predominance in pauciarticular and polyarticular groups. The most common disease was pauciarticular (58.7%) followed by systemic (25%) arthritis. The incidence of eye involvement was 12.5% and presented only in the pauciarticular group. Overall, ANA positivity was 53.7%, increasing to 90% in pauciarticular cases associated with chronic uveitis. In the early onset (EOPA) pauciarticular subtype, positive-HLA associations with alleles DR11 and DR8 were shown. In the late onset pauciarticular (LOPA) group only B27 allele was increased. CONCLUSIONS: The results of this retrospective study did not reveal major differences between JCA in Greek children compared with other Caucasian series. FAU - Dracou, C AU - Dracou C AD - 1st Department of Paediatrics, Aghia Sophia Children's Hospital, Athens, Greece. FAU - Constantinidou, N AU - Constantinidou N FAU - Constantopoulos, A AU - Constantopoulos A LA - eng PT - Journal Article PL - Australia TA - Acta Paediatr Jpn JT - Acta paediatrica Japonica : Overseas edition JID - 0370357 RN - 0 (Antibodies, Antinuclear) SB - IM MH - Adolescent MH - Age of Onset MH - Antibodies, Antinuclear/*blood MH - Arthritis, Juvenile/blood/complications/*immunology MH - Chi-Square Distribution MH - Child MH - Child, Preschool MH - Enzyme-Linked Immunosorbent Assay MH - Female MH - Fluorescent Antibody Technique MH - Greece/epidemiology MH - Humans MH - Infant MH - Male MH - Retrospective Studies MH - Uveitis/etiology EDAT- 1999/01/20 00:00 MHDA- 1999/01/20 00:01 CRDT- 1999/01/20 00:00 PHST- 1999/01/20 00:00 [pubmed] PHST- 1999/01/20 00:01 [medline] PHST- 1999/01/20 00:00 [entrez] AID - 10.1111/j.1442-200x.1998.tb01990.x [doi] PST - ppublish SO - Acta Paediatr Jpn. 1998 Dec;40(6):558-63. doi: 10.1111/j.1442-200x.1998.tb01990.x.