PMID- 29111883 OWN - NLM STAT- MEDLINE DCOM- 20200115 LR - 20200115 IS - 1477-0970 (Electronic) IS - 1352-4585 (Linking) VI - 25 IP - 1 DP - 2019 Jan TI - Multiple sclerosis and HLA genotypes: A possible influence on brain atrophy. PG - 23-30 LID - 10.1177/1352458517739989 [doi] AB - BACKGROUND: The strongest genetic determinant for multiple sclerosis (MS) is located at the human leukocyte antigen (HLA) class II DRB1 and DQB1 loci. OBJECTIVES: To investigate the possible role of predisposing HLA genotypes in determining brain atrophy. METHODS: HLA genotypes were categorized as high risk (two predisposing haplotypes) or medium/low risk (one or no predisposing haplotypes). Patients underwent a brain magnetic resonance imaging (MRI) study and volumes of white matter (WM), gray matter (GM), and whole brain (WB) were estimated with SIENAX. Longitudinal atrophy was also assessed with SIENA. RESULTS: The study included 240 MS patients. In 51/240 (21%) subjects, a high-risk HLA genotype was observed, while medium- and low-risk HLA genotypes were 109/240 (45%) and 80/240 (34%), respectively. Multiple regression analysis found that the high-risk HLA genotype was associated with significant reduction in WB ( p = 0.02) and GM ( p = 0.03) volumes compared with the medium-/low-risk HLA genotypes, independently from MS clinical features. The longitudinal study included 60 patients and showed a brain volume loss of -0.79% in high-risk HLA genotype group versus -0.56% in low-risk HLA genotype. CONCLUSION: Our results suggest an influence of HLA genotype on WB and GM atrophy. Further investigations are necessary to confirm these findings. FAU - Lorefice, Lorena AU - Lorefice L AD - Multiple Sclerosis Center, Binaghi Hospital, ATS Sardegna, Cagliari, Italy/Department of Medical Science and Public Health, University of Cagliari, Cagliari, Italy. FAU - Fenu, Giuseppe AU - Fenu G AD - Multiple Sclerosis Center, Binaghi Hospital, ATS Sardegna, Cagliari, Italy/Department of Medical Science and Public Health, University of Cagliari, Cagliari, Italy. FAU - Sardu, Claudia AU - Sardu C AD - Unit of Epidemiology, Department of Medical Science and Public Health, University of Cagliari, Cagliari, Italy. FAU - Frau, Jessica AU - Frau J AD - Multiple Sclerosis Center, Binaghi Hospital, ATS Sardegna, Cagliari, Italy/Department of Medical Science and Public Health, University of Cagliari, Cagliari, Italy. FAU - Coghe, Giancarlo AU - Coghe G AD - Multiple Sclerosis Center, Binaghi Hospital, ATS Sardegna, Cagliari, Italy/Department of Medical Science and Public Health, University of Cagliari, Cagliari, Italy. FAU - Costa, Gianna AU - Costa G AD - Multiple Sclerosis Center, Binaghi Hospital, ATS Sardegna, Cagliari, Italy/Department of Medical Science and Public Health, University of Cagliari, Cagliari, Italy. FAU - Schirru, Lucia AU - Schirru L AD - Multiple Sclerosis Center, Binaghi Hospital, ATS Sardegna, Cagliari, Italy/Department of Medical Science and Public Health, University of Cagliari, Cagliari, Italy. FAU - Secci, Maria Antonietta AU - Secci MA AD - Multiple Sclerosis Center, Binaghi Hospital, ATS Sardegna, Cagliari, Italy/Department of Medical Science and Public Health, University of Cagliari, Cagliari, Italy. FAU - Sechi, Vincenzo AU - Sechi V AD - Radiology Unit, Binaghi Hospital, ATS Sardegna, Cagliari, Italy. FAU - Barracciu, Maria Antonietta AU - Barracciu MA AD - Radiology Unit, Binaghi Hospital, ATS Sardegna, Cagliari, Italy. FAU - Marrosu, Maria Giovanna AU - Marrosu MG AD - Multiple Sclerosis Center, Binaghi Hospital, ATS Sardegna, Cagliari, Italy/Department of Medical Science and Public Health, University of Cagliari, Cagliari, Italy. FAU - Cocco, Eleonora AU - Cocco E AD - Multiple Sclerosis Center, Binaghi Hospital, ATS Sardegna, Cagliari, Italy/Department of Medical Science and Public Health, University of Cagliari, Cagliari, Italy. LA - eng PT - Journal Article DEP - 20171107 PL - England TA - Mult Scler JT - Multiple sclerosis (Houndmills, Basingstoke, England) JID - 9509185 RN - 0 (HLA-D Antigens) RN - 0 (HLA-DQ beta-Chains) RN - 0 (HLA-DQB1 antigen) RN - 0 (HLA-DRB1 Chains) SB - IM MH - Adult MH - Atrophy MH - Brain MH - Female MH - Gray Matter/diagnostic imaging/*pathology MH - HLA-D Antigens/*genetics MH - HLA-DQ beta-Chains/genetics MH - HLA-DRB1 Chains/genetics MH - Humans MH - Italy MH - Longitudinal Studies MH - Magnetic Resonance Imaging MH - Male MH - Middle Aged MH - Multiple Sclerosis/diagnostic imaging/*genetics/*pathology MH - White Matter/diagnostic imaging/*pathology OTO - NOTNLM OT - HLA genotypes OT - Multiple sclerosis OT - Sardinia OT - brain atrophy OT - gray matter OT - quantitative MRI EDAT- 2017/11/08 06:00 MHDA- 2020/01/16 06:00 CRDT- 2017/11/08 06:00 PHST- 2017/11/08 06:00 [pubmed] PHST- 2020/01/16 06:00 [medline] PHST- 2017/11/08 06:00 [entrez] AID - 10.1177/1352458517739989 [doi] PST - ppublish SO - Mult Scler. 2019 Jan;25(1):23-30. doi: 10.1177/1352458517739989. Epub 2017 Nov 7.