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J Pediatr. 2011 May;158(5):745-51. doi: 10.1016/j.jpeds.2010.10.043. Epub 2011 Jan 22.

Fucosyltransferase 2 non-secretor and low secretor status predicts severe outcomes in premature infants.

Author information

1
Division of Neonatology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45213, USA. Ardythe.Morrow@cchmc.org

Abstract

OBJECTIVE:

To investigate secretor gene fucosyltransferase 2 (FUT2) polymorphism and secretor phenotype in relation to outcomes of prematurity.

STUDY DESIGN:

Study infants were ≤32 weeks gestational age. Secretor genotype was determined from salivary DNA. Secretor phenotype was measured with H antigen, the carbohydrate produced by secretor gene enzymes, in saliva samples collected on day 9 ± 5. The optimal predictive cutoff point in salivary H values was identified with Classification and Regression Tree analysis. Study outcomes were death, necrotizing enterocolitis (NEC, Bell's stage II/III), and confirmed sepsis.

RESULTS:

There were 410 study infants, 26 deaths, 30 cases of NEC, and 96 cases of sepsis. Analyzed by genotype, 13% of 95 infants who were non-secretors, 5% of 203 infants who were heterozygotes, and 2% of 96 infants who were secretor dominant died (P = .01). Analyzed by phenotype, 15% of 135 infants with low secretor phenotype died, compared with 2% of 248 infants with high secretor phenotype (predictive value = 76%, P < .001). Low secretor phenotype was associated (P < .05) with NEC, and non-secretor genotype was associated (P = .05) with gram negative sepsis. Secretor status remained significant after controlling for multiple clinical factors.

CONCLUSIONS:

Secretor genotype and phenotype may provide strong predictive biomarkers of adverse outcomes in premature infants.

PMID:
21256510
PMCID:
PMC3412418
DOI:
10.1016/j.jpeds.2010.10.043
[Indexed for MEDLINE]
Free PMC Article

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