Volume 21 Issue 9
Sep.  2023
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YIN Hanjun, ZHU Suyue, JIANG Yazhou, ZHU Juan. Relationship between UGT1A1 gene mutation and breast milk jaundice[J]. Chinese Journal of General Practice, 2023, 21(9): 1537-1540. doi: 10.16766/j.cnki.issn.1674-4152.003164
Citation: YIN Hanjun, ZHU Suyue, JIANG Yazhou, ZHU Juan. Relationship between UGT1A1 gene mutation and breast milk jaundice[J]. Chinese Journal of General Practice, 2023, 21(9): 1537-1540. doi: 10.16766/j.cnki.issn.1674-4152.003164

Relationship between UGT1A1 gene mutation and breast milk jaundice

doi: 10.16766/j.cnki.issn.1674-4152.003164
Funds:

 F202153

 S201912

 K202002

 XYFM2020017

  • Received Date: 2023-01-26
    Available Online: 2023-10-19
  •   Objective  To study the distribution of UGT1A1 gene in newborns of Han nationality and explore the effect of UGT1A1 gene mutation on the occurrence of breast milk jaundice in newborns.  Methods  Using the case-control study design, 109 newborns with breast milk jaundice in Suqian Hospital of Nanjing Gulou Hospital Group from January 2018 to June 2020 were selected as the case group, and another 109 healthy newborns in the same period were selected as the control group.Clinical data were collected, peripheral blood was collected, whole blood DNA was extracted, and UGT1A1 gene was amplified and sequenced by PCR.The association of UGT1A1 gene polymorphism with breast milk jaundice and peak concentration of unconjugated bilirubin was analyzed.Through a prospective follow-up study, the regression of jaundice in newborns with different genotypes of breast milk jaundice was analyzed.  Results  There was no statistically significant difference between the case group and the control group in gender, birth mode, birth weight and gestational age (all P>0.05).There was no statistically significant difference in the frequency of UGT1A1*28 7TA/7TA, UGT1A1*63 C/T and UGT1A1*7 T/G between the two groups (all P>0.05).There was a correlation between UGT1A1*6 and neonatal milk jaundice (OR=3.561, 95%CI: 2.179-5.822).The serum bilirubin concentration of UGT1A1*6 homozygous mutation group was higher than that of the other two groups (P=0.001).A total of 65 cases of neonatal jaundice due to breast milk were followed up.Among them, 55 newborns completely disappeared within three months, and 8 cases of UGT1A1*6G/A mutant neonatal jaundice lasted more than three months.  Conclusion  UGT1A1*6 mutation is a risk factor for breast milk jaundice in Han nationality in this region.

     

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