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Genome-wide association study of placental weight identifies distinct and shared genetic influences between placental and fetal growth

Beaumont, R.N. ; Fadista, J. LU ; Feenstra, B. and Njølstad, P.R. (2023) In Nature Genetics 55(11). p.1807-1819
Abstract
A well-functioning placenta is essential for fetal and maternal health throughout pregnancy. Using placental weight as a proxy for placental growth, we report genome-wide association analyses in the fetal (n = 65,405), maternal (n = 61,228) and paternal (n = 52,392) genomes, yielding 40 independent association signals. Twenty-six signals are classified as fetal, four maternal and three fetal and maternal. A maternal parent-of-origin effect is seen near KCNQ1. Genetic correlation and colocalization analyses reveal overlap with birth weight genetics, but 12 loci are classified as predominantly or only affecting placental weight, with connections to placental development and morphology, and transport of antibodies and amino acids. Mendelian... (More)
A well-functioning placenta is essential for fetal and maternal health throughout pregnancy. Using placental weight as a proxy for placental growth, we report genome-wide association analyses in the fetal (n = 65,405), maternal (n = 61,228) and paternal (n = 52,392) genomes, yielding 40 independent association signals. Twenty-six signals are classified as fetal, four maternal and three fetal and maternal. A maternal parent-of-origin effect is seen near KCNQ1. Genetic correlation and colocalization analyses reveal overlap with birth weight genetics, but 12 loci are classified as predominantly or only affecting placental weight, with connections to placental development and morphology, and transport of antibodies and amino acids. Mendelian randomization analyses indicate that fetal genetically mediated higher placental weight is causally associated with preeclampsia risk and shorter gestational duration. Moreover, these analyses support the role of fetal insulin in regulating placental weight, providing a key link between fetal and placental growth. (Less)
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Contribution to journal
publication status
published
subject
keywords
amino acid, antibody, potassium channel KCNQ1, adult, amino acid transport, Article, birth weight, controlled study, female, fetus, fetus growth, gene locus, genetic correlation, genome, genome-wide association study, genotype, gestational age, human, major clinical study, male, Mendelian randomization analysis, morphology, placenta, placenta development, placenta weight, preeclampsia, pregnancy, pregnancy complication, progeny
in
Nature Genetics
volume
55
issue
11
pages
13 pages
publisher
Nature Publishing Group
external identifiers
  • scopus:85173791824
  • pmid:37798380
ISSN
1061-4036
DOI
10.1038/s41588-023-01520-w
language
English
LU publication?
yes
id
8987bd1e-b0f3-4e7b-9663-74ee79f05987
date added to LUP
2024-01-16 14:10:22
date last changed
2024-04-02 20:30:17
@article{8987bd1e-b0f3-4e7b-9663-74ee79f05987,
  abstract     = {{A well-functioning placenta is essential for fetal and maternal health throughout pregnancy. Using placental weight as a proxy for placental growth, we report genome-wide association analyses in the fetal (n = 65,405), maternal (n = 61,228) and paternal (n = 52,392) genomes, yielding 40 independent association signals. Twenty-six signals are classified as fetal, four maternal and three fetal and maternal. A maternal parent-of-origin effect is seen near KCNQ1. Genetic correlation and colocalization analyses reveal overlap with birth weight genetics, but 12 loci are classified as predominantly or only affecting placental weight, with connections to placental development and morphology, and transport of antibodies and amino acids. Mendelian randomization analyses indicate that fetal genetically mediated higher placental weight is causally associated with preeclampsia risk and shorter gestational duration. Moreover, these analyses support the role of fetal insulin in regulating placental weight, providing a key link between fetal and placental growth.}},
  author       = {{Beaumont, R.N. and Fadista, J. and Feenstra, B. and Njølstad, P.R.}},
  issn         = {{1061-4036}},
  keywords     = {{amino acid; antibody; potassium channel KCNQ1; adult; amino acid transport; Article; birth weight; controlled study; female; fetus; fetus growth; gene locus; genetic correlation; genome; genome-wide association study; genotype; gestational age; human; major clinical study; male; Mendelian randomization analysis; morphology; placenta; placenta development; placenta weight; preeclampsia; pregnancy; pregnancy complication; progeny}},
  language     = {{eng}},
  number       = {{11}},
  pages        = {{1807--1819}},
  publisher    = {{Nature Publishing Group}},
  series       = {{Nature Genetics}},
  title        = {{Genome-wide association study of placental weight identifies distinct and shared genetic influences between placental and fetal growth}},
  url          = {{http://dx.doi.org/10.1038/s41588-023-01520-w}},
  doi          = {{10.1038/s41588-023-01520-w}},
  volume       = {{55}},
  year         = {{2023}},
}