BMC Medical Genetics (Jul 2018)

Association between DSCAM polymorphisms and non-syndromic Hirschsprung disease in Chinese population

  • Yong Wang,
  • Qiuming He,
  • Ruizhong Zhang,
  • Wei Zhong,
  • Deli Zhu,
  • Yan Zhang,
  • Huimin Xia

DOI
https://doi.org/10.1186/s12881-018-0637-2
Journal volume & issue
Vol. 19, no. 1
pp. 1 – 5

Abstract

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Abstract Background Hirschsprung disease (HSCR, aganglionic megacolon) is the most frequent genetic cause of congenital intestinal obstruction. DSCAM was identified as associated to HSCR with Down Syndrome (DS-HSCR) in European population,but failed to replicate in the non-syndromic HSCR patients. We aim to further investigate the relationship of DSCAM with non-sydromic HSCR in a South Chinese cohort, the largest case-control study so far. Method We analyzed 1394 HSCR patients and 973 healthy controls. Two polymorphisms (rs2837770 A > G, rs8134673 A > G) on DSCAM were genotyped using Sequenom Massarray platform. Results Both SNPs were confirmed as associated with non-syndromic HSCR in the South Chinese population (P = 1.69E-03, OR = 1.29 for SNP rs2837770 and P = 3.00E-03, OR = 1.27 for SNP rs8134637). Of note, we demonstrated the associated SNPs were more likely to affect a subgroup of patients with short-segment aganglionosis (S-HSCR) (P = 3.06E-03,OR = 1.21 for SNP rs2837770 and P = 3.33E-03,OR = 1.21 for SNP rs8134637). Conclusion There is an association between DSCAM polymorphisms and non-syndromic HSCR in South Chinese population.

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