Association between MKRN3 and LIN28B polymorphisms and precocious puberty

Bo Ram Yi, Hyun Jeong Kim, Hye Sook Park, Yoon Jeong Cho, Ju Young Kim, Jeong Yee, Jee Eun Chung, Joo Hee Kim, Kyung Eun Lee, Hye Sun Gwak

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11 Scopus citations


Background: The present study aimed to investigate the association between MKRN3 and LIN28B gene polymorphisms and precocious puberty in Korean boys and girls. Results: Children 7 to 9 years of age in 2011 to 2012 who were part of the Ewha Birth & Growth Cohort Study were recruited for this study. A total of 103 girls and 70 boys were included in the analyses. Seven girls and 26 boys were identified to have precocious puberty. Among four single nucleotide polymorphisms (SNPs) of MKRN3 and two SNPs of LIN28B examined, three SNPs (rs2239669, rs6576457, and rs12441827) showed significant associations with precocious puberty in additive models in boys but no significance was found in any SNPs in girls. From the logistic regression analysis, boys with TT alleles in rs12441827 had about a four-times greater risk for precocious puberty when compared to C allele carriers (OR = 3.95, 95% CI = 1.27-12.32 in model 1). eQTL analysis revealed that SNPs of statistical significance from our study did not show the variation in expression profiles nor found in the database. Conclusions: This study supports the impact of MKRN3 SNP rs12441827 on precocious puberty in Korean boys. The results add a further aspect to genetic association in precocious puberty along with complex interactions of environmental, nutritional and socioeconomic factors.

Original languageEnglish
Article number47
JournalBMC Genetics
Issue number1
StatePublished - 27 Jul 2018

Bibliographical note

Publisher Copyright:
© 2018 The Author(s).


  • Lin-28 homolog B
  • Makorin RING finger protein 3
  • Precocious puberty
  • Single nucleotide polymorphism


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