TY - JOUR
T1 - Developmental language disorder – heritability and genetic correlations with other disorders affecting language
AU - Nudel, Ron
AU - Chrsitensen, Rikke Vang
AU - Kalnak, Nelli
AU - Lundberg, Mischa
AU - Schwinn, Michael
AU - Sørensen, Erik
AU - Mikkelsen, Christina
AU - Nissen, Janna
AU - Christoffersen, Lea Arregui Nordahl
AU - Kjerulff, Bertram Dalskov
AU - Hansen, Thomas Folkmann
AU - Burgdorf, Kristoffer Sølvsten
AU - Banasik, Karina
AU - Bay, Jakob
AU - Kjærgaard Boldsen, Jens
AU - Brodersen, Thorsten
AU - Brunak, Søren
AU - Demur, Alfonso Buil
AU - Nordahl Christoffersen, Lea Arregui
AU - Didriksen, Maria
AU - Dinh, Khoa Manh
AU - Dowsett, Joseph
AU - Erikstrup, Christian
AU - Feenstra, Bjarke
AU - Geller, Frank
AU - Gudbjartsson, Daniel
AU - Mikkelsen, Dorte Helenius
AU - Hindhede, Lotte
AU - Hjalgrim, Henrik
AU - von Stemann, Jakob Hjorth
AU - Jensen, Bitten Aagaard
AU - Schork, Andrew Joseph
AU - Kaspersen, Kathrine
AU - Kongstad, Mette
AU - Mikkelsen, Susan
AU - Nyegaard, Mette
AU - Ostrowski, Sisse Rye
AU - Pedersen, Ole Birger
AU - Elgaard Quinn, Liam James
AU - Rafnar, Þórunn
AU - Rohde, Palle Duun
AU - Rostgaard, Klaus
AU - Stefansson, Kari
AU - Stefánsson, Hreinn
AU - Thørner, Lise Wegner
AU - Þorsteinsdóttir, Unnur
AU - Bruun, Mie Topholm
AU - Ullum, Henrik
AU - Werge, Thomas
AU - Pedersen, Ole Birger
AU - DBDS Genomic Consortium
N1 - Publisher Copyright:
© 2024
PY - 2024/12
Y1 - 2024/12
N2 - Developmental language disorder (DLD) is a neurodevelopmental disorder primarily affecting language in the absence of a known biomedical condition, which may have a large impact on a person's life and mental health. Family-based studies indicate a strong genetic component in DLD, but genetic studies of DLD are scarce. In this study we estimated the heritability of DLD and its genetic correlations with related disorders and traits in sample of >25,000 individuals from the Danish Blood Donor Study for whom we had both genotype data and questionnaire data on language disorder and language support. We estimated SNP-based heritabilities for DLD and genetic correlations with disorders which may involve spoken language deficits and traits related to spoken language. We found significant heritability estimates for DLD ranging from ∼27 % to ∼52 %, depending on the method used. We found no significant evidence for genetic correlation with the investigated disorders or traits, although the strongest effect was observed for a negative genetic correlation between DLD and nonword repetition ability. To our knowledge, this study reports the first significant heritability estimate for DLD from molecular genetic data.
AB - Developmental language disorder (DLD) is a neurodevelopmental disorder primarily affecting language in the absence of a known biomedical condition, which may have a large impact on a person's life and mental health. Family-based studies indicate a strong genetic component in DLD, but genetic studies of DLD are scarce. In this study we estimated the heritability of DLD and its genetic correlations with related disorders and traits in sample of >25,000 individuals from the Danish Blood Donor Study for whom we had both genotype data and questionnaire data on language disorder and language support. We estimated SNP-based heritabilities for DLD and genetic correlations with disorders which may involve spoken language deficits and traits related to spoken language. We found significant heritability estimates for DLD ranging from ∼27 % to ∼52 %, depending on the method used. We found no significant evidence for genetic correlation with the investigated disorders or traits, although the strongest effect was observed for a negative genetic correlation between DLD and nonword repetition ability. To our knowledge, this study reports the first significant heritability estimate for DLD from molecular genetic data.
KW - Developmental language disorder
KW - Genetic correlation
KW - Heritability
UR - http://www.scopus.com/inward/record.url?scp=85205146733&partnerID=8YFLogxK
U2 - 10.1016/j.psychres.2024.116212
DO - 10.1016/j.psychres.2024.116212
M3 - Journal article
C2 - 39348781
AN - SCOPUS:85205146733
SN - 0165-1781
VL - 342
JO - Psychiatry Research
JF - Psychiatry Research
M1 - 116212
ER -