Discovery of sexual dimorphisms in metabolic and genetic biomarkers

Kirstin Mittelstrass, Janina S. Ried, Zhonghao Yu, Jan Krumsiek, Christian Gieger, Cornelia Prehn, Werner Roemisch-Margl, Alexey Polonikov, Annette Peters, Fabian J. Theis, Thomas Meitinger, Florian Kronenberg, Stephan Weidinger, Heinz Erich Wichmann, Karsten Suhre, Rui Wang-Sattler, Jerzy Adamski, Thomas Illig

Research output: Contribution to journalArticle

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Abstract

Metabolomic profiling and the integration of whole-genome genetic association data has proven to be a powerful tool to comprehensively explore gene regulatory networks and to investigate the effects of genetic variation at the molecular level. Serum metabolite concentrations allow a direct readout of biological processes, and association of specific metabolomic signatures with complex diseases such as Alzheimer's disease and cardiovascular and metabolic disorders has been shown. There are well-known correlations between sex and the incidence, prevalence, age of onset, symptoms, and severity of a disease, as well as the reaction to drugs. However, most of the studies published so far did not consider the role of sexual dimorphism and did not analyse their data stratified by gender. This study investigated sex-specific differences of serum metabolite concentrations and their underlying genetic determination. For discovery and replication we used more than 3,300 independent individuals from KORA F3 and F4 with metabolite measurements of 131 metabolites, including amino acids, phosphatidylcholines, sphingomyelins, acylcarnitines, and C6-sugars. A linear regression approach revealed significant concentration differences between males and females for 102 out of 131 metabolites (p-values<3.8×10 -4; Bonferroni-corrected threshold). Sex-specific genome-wide association studies (GWAS) showed genome-wide significant differences in beta-estimates for SNPs in the CPS1 locus (carbamoyl-phosphate synthase 1, significance level: p<3.8×10 -10; Bonferroni-corrected threshold) for glycine. We showed that the metabolite profiles of males and females are significantly different and, furthermore, that specific genetic variants in metabolism-related genes depict sexual dimorphism. Our study provides new important insights into sex-specific differences of cell regulatory processes and underscores that studies should consider sex-specific effects in design and interpretation.

Original languageEnglish
Article numbere1002215
JournalPLoS Genetics
Volume7
Issue number8
DOIs
Publication statusPublished - Aug 2011
Externally publishedYes

Fingerprint

sexual dimorphism
Sex Characteristics
biomarker
biomarkers
metabolite
Biomarkers
metabolites
Metabolomics
gender
genome
metabolomics
Genome
Carbamyl Phosphate
Biological Phenomena
Sphingomyelins
serum
Gene Regulatory Networks
Genome-Wide Association Study
Serum
Phosphatidylcholines

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Molecular Biology
  • Genetics
  • Genetics(clinical)
  • Cancer Research

Cite this

Mittelstrass, K., Ried, J. S., Yu, Z., Krumsiek, J., Gieger, C., Prehn, C., ... Illig, T. (2011). Discovery of sexual dimorphisms in metabolic and genetic biomarkers. PLoS Genetics, 7(8), [e1002215]. https://doi.org/10.1371/journal.pgen.1002215

Discovery of sexual dimorphisms in metabolic and genetic biomarkers. / Mittelstrass, Kirstin; Ried, Janina S.; Yu, Zhonghao; Krumsiek, Jan; Gieger, Christian; Prehn, Cornelia; Roemisch-Margl, Werner; Polonikov, Alexey; Peters, Annette; Theis, Fabian J.; Meitinger, Thomas; Kronenberg, Florian; Weidinger, Stephan; Wichmann, Heinz Erich; Suhre, Karsten; Wang-Sattler, Rui; Adamski, Jerzy; Illig, Thomas.

In: PLoS Genetics, Vol. 7, No. 8, e1002215, 08.2011.

Research output: Contribution to journalArticle

Mittelstrass, K, Ried, JS, Yu, Z, Krumsiek, J, Gieger, C, Prehn, C, Roemisch-Margl, W, Polonikov, A, Peters, A, Theis, FJ, Meitinger, T, Kronenberg, F, Weidinger, S, Wichmann, HE, Suhre, K, Wang-Sattler, R, Adamski, J & Illig, T 2011, 'Discovery of sexual dimorphisms in metabolic and genetic biomarkers', PLoS Genetics, vol. 7, no. 8, e1002215. https://doi.org/10.1371/journal.pgen.1002215
Mittelstrass K, Ried JS, Yu Z, Krumsiek J, Gieger C, Prehn C et al. Discovery of sexual dimorphisms in metabolic and genetic biomarkers. PLoS Genetics. 2011 Aug;7(8). e1002215. https://doi.org/10.1371/journal.pgen.1002215
Mittelstrass, Kirstin ; Ried, Janina S. ; Yu, Zhonghao ; Krumsiek, Jan ; Gieger, Christian ; Prehn, Cornelia ; Roemisch-Margl, Werner ; Polonikov, Alexey ; Peters, Annette ; Theis, Fabian J. ; Meitinger, Thomas ; Kronenberg, Florian ; Weidinger, Stephan ; Wichmann, Heinz Erich ; Suhre, Karsten ; Wang-Sattler, Rui ; Adamski, Jerzy ; Illig, Thomas. / Discovery of sexual dimorphisms in metabolic and genetic biomarkers. In: PLoS Genetics. 2011 ; Vol. 7, No. 8.
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