Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 2018
[Markers of gluten intolerance in children with autism spectrum disorders and Down'syndrome].
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Bavykina I A, Zvyagin A A, Petrova I V, Nastausheva T L
Аннотация
AIM: To study serological and genetic markers of gluten intolerance in children and teenagers with autism spectrum disorders (ASD) and Down's syndrome (DS).
MATERIAL AND METHODS: Thirty-three children with ASD (group 1) and 8 with DS (group 2), aged from 2.5 to 15 years, were examined. There were 27 boys and 6 girls in group1, 5 boys and 3 girls in group 2. Most of the children were on a regular diet and only 4 children with ASD kept gluten-free diet (GFD). Using ELI method antibodies to gliadin IgG (AntiGliadin IgG), antibodies to deamidated peptides of gliadin IgA (AntiDGP IgA), immunoglobulin A (IgA) were identified. Haplotypes HLA-DQ2 and DQ8 were determined using PCR.
RESULTS: AntiGliadin IgG were identified in 12.1% (4) patients of group 1, with the exception of patients on GFD in 13.8%, and in 50% patients of group 2. One child with ASD had selective IgA deficiency. Haplotypes predisposing to celiac disease had 41.9% of patients of group 1 and 37.5% of patients of group 2. In ASD, the distribution of genotypes was as follows: DQ2 (64.3%), DQ8 (28.6%), DQ2/DQ8 (7.1%,). In DS, all patients had haplotype DQ2. AntiDGP IgA were not identified in both groups.
CONCLUSION: The predominant form of gluten intolerance in children with ASD and DS is sensitivity to gluten, which can be identified in 40-50% of patients. Celiac disease, an autoimmune form of gluten intolerance, can be diagnosed in single cases, although predisposition to it is identified in 41.9% - 37.5% patients with ASD and DS, respectively. Before the start of GFD, laboratory tests should be made to identify forms of gluten intolerance and the use of GFD.
MATERIAL AND METHODS: Thirty-three children with ASD (group 1) and 8 with DS (group 2), aged from 2.5 to 15 years, were examined. There were 27 boys and 6 girls in group1, 5 boys and 3 girls in group 2. Most of the children were on a regular diet and only 4 children with ASD kept gluten-free diet (GFD). Using ELI method antibodies to gliadin IgG (AntiGliadin IgG), antibodies to deamidated peptides of gliadin IgA (AntiDGP IgA), immunoglobulin A (IgA) were identified. Haplotypes HLA-DQ2 and DQ8 were determined using PCR.
RESULTS: AntiGliadin IgG were identified in 12.1% (4) patients of group 1, with the exception of patients on GFD in 13.8%, and in 50% patients of group 2. One child with ASD had selective IgA deficiency. Haplotypes predisposing to celiac disease had 41.9% of patients of group 1 and 37.5% of patients of group 2. In ASD, the distribution of genotypes was as follows: DQ2 (64.3%), DQ8 (28.6%), DQ2/DQ8 (7.1%,). In DS, all patients had haplotype DQ2. AntiDGP IgA were not identified in both groups.
CONCLUSION: The predominant form of gluten intolerance in children with ASD and DS is sensitivity to gluten, which can be identified in 40-50% of patients. Celiac disease, an autoimmune form of gluten intolerance, can be diagnosed in single cases, although predisposition to it is identified in 41.9% - 37.5% patients with ASD and DS, respectively. Before the start of GFD, laboratory tests should be made to identify forms of gluten intolerance and the use of GFD.