A Study on Fucosyltransferase 2 Gene Polymorphism and Secretion Status Related to Neonatal Necrotizing Enterocolitis

Author:

Ye Qing1ORCID,Yu Jialin12ORCID

Affiliation:

1. Department of Neonatology, Children’s Hospital of Chongqing Medical University, Chongqing 400014, China

2. Department of Pediatrics, Shenzhen University General Hospital, Shenzhen 518055, Guangdong, China

Abstract

Objective. To detect the single nucleotide polymorphism (SNP) of alpha-(1,2) fucosyltransferase 2 gene (FUT2) and the secretion status in the newborns of Chongqing China and explore the relationship between genotype or phenotype of FUT2 and neonatal necrotizing enterocolitis (NEC). Methods. Newborns who were hospitalized in Children’s Hospital of Chongqing Medical University from August 2014 to December 2015 and in line with the inclusion criteria were chosen as the research subjects; 34 cases of them in accordance with the diagnostic criteria of NEC stage II or III were NEC group, and 36 other cases of them were the control group. Total DNA was extracted from oral epithelial cells of patients which were collected with cotton buds. FUT2 SNP genotype was detected by gene sequencing. H antigen was detected with saliva samples by saliva agglutination inhibition test. Related clinical data were collected for analysis. Results. There are three genotypes on the rs1047781 (A385T) allele of the FUT2 encoding sequence: AA, AT, and TT. The number of genotypes AA, AT, and TT in the NEC group was 9 (26.47%), 12 (35.29%), and 13 (38.24%), respectively. In the control group, the number of genotypes AA, AT, and TT was 12 (33.33%), 17 (47.23%), and 7 (19.44%). There were no differences in genotypes between the two groups according to the chi-square test ( P > 0.05 ). There were 22 cases of secretors (64.7%) and 12 cases of nonsecretors (35.3%) in the NEC group. The number of secretors and nonsecretors in the control group was 31 (88.89%) and 5 (11.11%). Statistical difference was found in the phenotype between two groups through the chi-square test ( P < 0.05 ). In addition, no G428A homozygous mutation, which causes nonsecretor phenotype in Caucasians, was seen in all the subjects of this study. Conclusions. These findings indicate that secretion status (nonsecretor) was significantly associated with NEC in Chongqing, China.

Funder

National Natural Science Foundation of China

Publisher

Hindawi Limited

Subject

Health Informatics,Biomedical Engineering,Surgery,Biotechnology

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