PMID- 23110937 OWN - NLM STAT- MEDLINE DCOM- 20130325 LR - 20220330 IS - 1872-8421 (Electronic) IS - 0165-5728 (Linking) VI - 255 IP - 1-2 DP - 2013 Feb 15 TI - The link between some alleles on human leukocyte antigen system and autism in children. PG - 70-4 LID - S0165-5728(12)00305-0 [pii] LID - 10.1016/j.jneuroim.2012.10.002 [doi] AB - The reason behind the initiation of autoimmunity to brain in some patients with autism is not well understood. There is an association between some autoimmune disorders and specific alleles of human leukocyte antigen (HLA) system. Thus, we examined the frequency of some HLA-DRB1 alleles in 100 autistic children and 100 healthy matched-children by differential hybridization with sequence-specific oligonucleotide probes. The risk of association between acquisition or absence of these alleles and autism and also a history of autoimmune diseases in autistic relatives was studied. Autistic children had significantly higher frequency of HLA-DRB1*11 allele than controls (P<0.001). In contrast, autistic children had significantly lower frequency of HLA-DRB1*03 allele than controls (P<0.001). Acquisition of HLA-DRB1*011 and absence of HLA-DRB1*3 had significant risk for association with autism (odds ratio: 3.21 and 0.17, respectively; 95% CI: 1.65-6.31 and 0.06-0.45, respectively). HLA-DRB1*11 had a significant risk for association with a family history of autoimmunity in autistic children (odds ratio: 5.67; 95% CI: 2.07-16.3). In conclusions, the link of some HLA alleles to autism and to family history of autoimmunity indicates the possible contributing role of these alleles to autoimmunity in some autistic children. Despite a relatively small sample size, we are the first to report a probable protective association of HLA-DRB1*03 allele with autism. It warrants a replication study of a larger sample to validate the HLA-DRB1 genetic association with autism. This is important to determine whether therapeutic modulations of the immune function are legitimate avenues for novel therapy in selected cases of autism. CI - Copyright (c) 2012 Elsevier B.V. All rights reserved. FAU - Mostafa, Gehan A AU - Mostafa GA AD - Department of Pediatrics, Faculty of Medicine, Ain Shams University, Cairo, Egypt; Autism Research and Treatment Center, Al-Amodi Autism Research Chair, Department of Physiology, Faculty of Medicine, King Saud University, Riyadh, Saudi Arabia. hafezg@softhome.net FAU - Shehab, Abeer A AU - Shehab AA FAU - Al-Ayadhi, Laila Y AU - Al-Ayadhi LY LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20121027 PL - Netherlands TA - J Neuroimmunol JT - Journal of neuroimmunology JID - 8109498 RN - 0 (HLA-DRB1 Chains) RN - 0 (HLA-DRB1*11 antigen) SB - IM MH - Autistic Disorder/epidemiology/*genetics/immunology MH - Child MH - Child, Preschool MH - Female MH - Gene Frequency/genetics/immunology MH - Genetic Predisposition to Disease/epidemiology/*genetics MH - HLA-DRB1 Chains/*genetics/immunology MH - Humans MH - Male EDAT- 2012/11/01 06:00 MHDA- 2013/03/26 06:00 CRDT- 2012/11/01 06:00 PHST- 2012/06/28 00:00 [received] PHST- 2012/09/29 00:00 [revised] PHST- 2012/10/03 00:00 [accepted] PHST- 2012/11/01 06:00 [entrez] PHST- 2012/11/01 06:00 [pubmed] PHST- 2013/03/26 06:00 [medline] AID - S0165-5728(12)00305-0 [pii] AID - 10.1016/j.jneuroim.2012.10.002 [doi] PST - ppublish SO - J Neuroimmunol. 2013 Feb 15;255(1-2):70-4. doi: 10.1016/j.jneuroim.2012.10.002. Epub 2012 Oct 27.