Tianjin Medical Journal ›› 2022, Vol. 50 ›› Issue (9): 959-964.doi: 10.11958/20211522

• Clinical Research • Previous Articles     Next Articles

Correlation between jaundice and vitamin D and NADSYN1 gene polymorphism in full-term neonates

LI Guoxu1,2,3(), WANG Ping4, ZHOU Weiwei1,3, CUI Xiaoyu1,3, ZHANG Fang1, SHU Jianbo4, LIU Yang1,()   

  1. 1 Department of Neonatology, Tianjin Children’s Hospital (Tianjin University Children's Hospital), Tianjin 300134, China
    2 Department of Pediatrics, the Second Affiliated Hospital of Anhui Medical University
    3 Graduate College of Tianjin Medical University
    4 Tianjin Pediatric Research Institute, Tianjin Children’s Hospital
  • Received:2021-07-05 Revised:2021-10-19 Published:2022-09-15 Online:2022-09-05
  • Contact: LIU Yang E-mail:etyylgx@163.com;etyyly@163.com

Abstract:

Objective To study the relationship between full-term neonatal jaundice, vitamin D (VD) levels, and single nucleotide polymorphisms (SNP) at rs12785878 of NADSYN1 gene. Methods The clinical data of 216 full-term infants with neonatal jaundice were retrospectively analyzed. The serum VD level was detected by liquid chromatography tandem mass spectrometry (LC-MS/MS), and a high-resolution melting curve (HRM) method was established to analyze the SNP of the NADSYN1 gene rs12785878 site. The infants were divided into groups according to whether they were older than 14 days, and the risk factors of hyperbilirubinemia were analyzed respectively. Results In infants ≤14 days, infection, cesarean and breast feeding were risk factors for hyperbilirubinemia. In infants >14 days, infection and hypoplasma protein were risk factors for hyperbilirubinemia. The established HRM analysis method of the rs12785878 site had a normal amplification reaction, and the genotypes of GG, GT and TT were well distinguished. The proportion of GG genotype and G allele was higher in the case group than that in the control group. In infants ≤14 days, the average VD value was higher in the TT genotype than that of the GG genotype [(12.61±5.23) μg/L vs. (9.62±4.24) μg/L, P<0.05]. Conclusion The GG genotype at rs12785878 of NADSYN1 gene is a risk factor for hyperbilirubinemia and low VD level in neonates ≤14 days old, which can be used as a new reference for the diagnosis and treatment of hyperbilirubinemia in full-term neonates.

Key words: hyperbilirubinemia,neonatal, vitamin D, polymorphism,single nucleotide, infant,newborn, NAD, NADSYN1, rs12785878

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