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Article Abstract
Background: While extensive research highlighted the involvement of metabolism and immune cells in female reproductive diseases, causality remains unestablished.
Methods: Instrumental variables for 486 circulating metabolites ( = 7824) and 731 immunophenotypes ( = 3757) were derived from a genome-wide association study (GWAS) meta-analysis. FinnGen contributed data on 14 female reproductive disorders. A bidirectional two-sample Mendelian randomization study was performed to determine the relationships between exposures and outcomes. The robustness of results, potential heterogeneity, and horizontal pleiotropy were examined through sensitivity analysis.
Results: High levels of mannose were found to be causally associated with increased risks of gestational diabetes (GDM) (OR [95% CI], 6.02 [2.85-12.73], = 2.55 × 10). A genetically predicted elevation in the relative count of circulating CD28CD25CD8 T cells was causally related to increased female infertility risk (OR [95% CI], 1.26 [1.14-1.40], = 1.07 × 10), whereas a high absolute count of NKT cells reduced the risk of ectopic pregnancy (OR [95% CI], 0.87 [0.82-0.93], = 5.94 × 10). These results remained consistent in sensitivity analyses.
Conclusions: Our study supports mannose as a promising GDM biomarker and intervention target by integrating metabolomics and genomics.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10813709 | PMC |
| http://dx.doi.org/10.3390/biom14010116 | DOI Listing |
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