A description of large-scale metabolomics studies: increasing value by combining metabolomics with genome-wide SNP genotyping and transcriptional profiling.
The metabolome, defined as the reflection of metabolic dynamics derived from parameters measured primarily in easily accessible body fluids such as serum, plasma, and urine, can be considered as the omics data pool that is closest to the phenotype because it integrates genetic influences as well as nongenetic factors. Metabolic traits can be related to genetic polymorphisms in genome-wide association studies, enabling the identification of underlying genetic factors, as well as to specific phenotypes, resulting in the identification of metabolome signatures primarily caused by nongenetic factors. Similarly, correlation of metabolome data with transcriptional or/and proteome profiles of blood cells also produces valuable data, by revealing associations between metabolic changes and mRNA and protein levels. In the last years, the progress in correlating genetic variation and metabolome profiles was most impressive. This review will therefore try to summarize the most important of these studies and give an outlook on future developments.
Department of Functional Genomics, Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Friedrich-Ludwig-Jahn-Straße 15A, D-17487 Greifswald, Germany. georg.homuth@uni-greifswald.de
Georg
G
Homuth
Alexander
A
Teumer
Uwe
U
Völker
Matthias
M
Nauck
D020650:Combinatorial Chemistry Techniques / Q000379:methods / Q000706:statistics & numerical data; D020869:Gene Expression Profiling / Q000379:methods* / Q000706:statistics & numerical data; D055106:Genome-Wide Association Study / Q000379:methods; D005838:Genotype; D060005:Genotyping Techniques / Q000379:methods; D006801:Humans; D055432:Metabolomics / Q000379:methods*; D008954:Models, Biological; D020641:Polymorphism, Single Nucleotide / Q000502:physiology; D011237:Predictive Value of Tests; D018401:Sample Size; D014158:Transcription, Genetic / Q000502:physiology