PMID- 15083289 OWN - NLM STAT- MEDLINE DCOM- 20050301 LR - 20111117 IS - 0340-5354 (Print) IS - 0340-5354 (Linking) VI - 251 IP - 4 DP - 2004 Apr TI - DQB1*0602 allele shows a strong association with multiple sclerosis in patients in Malaga, Spain. PG - 440-4 AB - BACKGROUND: The human leukocyte antigen (HLA) class II DR2 haplotype (DRB1*1501, DQA1*0102, DQB1*0602) has been associated with multiple sclerosis (MS) in all ethnic groups and very strongly in Caucasians. AIM: To investigate the possible HLA class II (DRB1, DQA1 and DQB1) associations with MS in Malaga, southern Spain. METHODS: We analysed the HLA class II sub-regions DRB1, DQA1 and DQB1 by polymerase chain reaction (PCR) and sequence-specific oligonucleotide probe hybridization (PCR/SSO) for DRB1 and DQB1 and with sequence-specific primers (PCR/SSP) for DRB1 subtypes and DQA1. Possible HLA class II associations with clinical MS characteristics were investigated in 149 subjects with and 160 without MS. RESULTS: Associations were detected between MS and the HLA class II alleles DRB1*1501 (45.6 % vs. 21.3%, p=0.001), DQA1*0102 (44% vs. 29.4%, p=0.001) and DQB1*0602 (45% vs. 20.6%, p=0.001). The DR2 haplotype (DRB1*1501, DQA1*0102, DQB1*0602) was associated with MS (43.6 % vs. 20%, p=0.002). DQB1*0602 was the only allele that maintained an association with MS in a logistic regression model. No HLA class II alleles or genotypes were significantly associated with any clinical characteristics of MS. CONCLUSIONS: Our results confirm the positive association of the DR2 haplotype with MS, particularly the allele DQB1*0602, in the population studied. DR4 was not associated with the disease in Malaga. HLA class II alleles or haplotypes were not associated with clinical or demographic characteristics, or clinical form or severity of MS. FAU - Fernandez, O AU - Fernandez O AD - Dept. of Neurology, Hospital Regional Universitario Carlos Haya, Avda. Carlos Haya s/n, 29010 Malaga, Spain. oscar.fernandez.sspa.@juntadeandalucia.es FAU - Fernandez, V AU - Fernandez V FAU - Alonso, A AU - Alonso A FAU - Caballero, A AU - Caballero A FAU - Luque, G AU - Luque G FAU - Bravo, M AU - Bravo M FAU - Leon, A AU - Leon A FAU - Mayorga, C AU - Mayorga C FAU - Leyva, L AU - Leyva L FAU - de Ramon, E AU - de Ramon E LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Germany TA - J Neurol JT - Journal of neurology JID - 0423161 RN - 0 (HLA-DQ Antigens) RN - 0 (HLA-DQ beta-Chains) RN - 0 (HLA-DQB1 antigen) RN - 0 (Membrane Glycoproteins) SB - IM MH - Adolescent MH - Adult MH - Aged MH - *Alleles MH - Case-Control Studies MH - Chi-Square Distribution MH - Child MH - Cohort Studies MH - Confidence Intervals MH - Female MH - Gene Frequency MH - HLA-DQ Antigens/*genetics MH - HLA-DQ beta-Chains MH - Humans MH - Logistic Models MH - Male MH - Membrane Glycoproteins/*genetics MH - Middle Aged MH - Multiple Sclerosis/diagnosis/*genetics MH - Multivariate Analysis MH - Odds Ratio MH - Phenotype MH - Spain EDAT- 2004/04/15 05:00 MHDA- 2005/03/02 09:00 CRDT- 2004/04/15 05:00 PHST- 2002/10/25 00:00 [received] PHST- 2003/11/03 00:00 [revised] PHST- 2003/11/17 00:00 [accepted] PHST- 2004/04/15 05:00 [pubmed] PHST- 2005/03/02 09:00 [medline] PHST- 2004/04/15 05:00 [entrez] AID - 10.1007/s00415-004-0350-2 [doi] PST - ppublish SO - J Neurol. 2004 Apr;251(4):440-4. doi: 10.1007/s00415-004-0350-2.