Annals of human biology · 2014
Lactase genetic polymorphisms and coeliac disease in children: a cohort study.
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Kuchay Raja A H, Thapa Babu R, Mahmood Akhtar, Anwar Mumtaz, Mahmood Safrun
Аннотация
BACKGROUND: Lactase activity declines during childhood in the majority of human populations leading to adult-type hypolactasia (AtH). C/T-13910 and G/A-22018 single nucleotide polymorphisms (SNPs) have been suggested to be associated with AtH in different human populations. Coeliac disease (CD) is an autoimmune condition characterized by damage to intestinal cells leading to ultimate deterioration.
AIM: This study investigated the association between coeliac disease (CD) and SNPs leading to AtH in children from North India.
SUBJECTS AND METHODS: Intestinal biopsies and saliva samples were obtained from 52 children with CD diagnosis and 102 control subjects. Biopsies were assayed for disaccharidase activities and samples were genotyped for given SNPs.
RESULTS: Prevalence of C/C and G/G genotypes of AtH was almost equal in the CD and control group. The CD group had low lactase activity compared to the control group, irrespective of genotype at C/T -13910 and G/A -22018 SNPs (p < 0.05). For the control group, lactase activity was high in children with C/T + G/A genotypes compared to C/C + G/G (p < 0.05).
CONCLUSION: There appears to be no significant correlation between C/T -13910 or G/A -22018 SNPs of AtH and CD. Children with C/C or G/G genotype of AtH may not be at greater risk of CD.
AIM: This study investigated the association between coeliac disease (CD) and SNPs leading to AtH in children from North India.
SUBJECTS AND METHODS: Intestinal biopsies and saliva samples were obtained from 52 children with CD diagnosis and 102 control subjects. Biopsies were assayed for disaccharidase activities and samples were genotyped for given SNPs.
RESULTS: Prevalence of C/C and G/G genotypes of AtH was almost equal in the CD and control group. The CD group had low lactase activity compared to the control group, irrespective of genotype at C/T -13910 and G/A -22018 SNPs (p < 0.05). For the control group, lactase activity was high in children with C/T + G/A genotypes compared to C/C + G/G (p < 0.05).
CONCLUSION: There appears to be no significant correlation between C/T -13910 or G/A -22018 SNPs of AtH and CD. Children with C/C or G/G genotype of AtH may not be at greater risk of CD.