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Genetic Associations with Gestational Duration and Spontaneous Preterm Birth

Artikel i vetenskaplig tidskrift
Författare G. Zhang
B. Feenstra
Jonas Bacelis
X. Liu
L. M. Muglia
Julius Juodakis
D. E. Miller
N. Litterman
P. P. Jiang
L. Russell
D. A. Hinds
Y. Hu
M. T. Weirauch
X. Chen
A. R. Chavan
G. P. Wagner
M. Pavlicev
M. C. Nnamani
J. Maziarz
M. K. Karjalainen
M. Ramet
V. Sengpiel
F. Geller
H. A. Boyd
A. Palotie
A. Momany
B. Bedell
K. K. Ryckman
J. M. Huusko
C. R. Forney
L. C. Kottyan
M. Hallman
K. Teramo
E. A. Nohr
G. D. Smith
M. Melbye
Bo Jacobsson
L. J. Muglia
Publicerad i New England Journal of Medicine
Volym 377
Nummer/häfte 12
Sidor 1156-1167
ISSN 0028-4793
Publiceringsår 2017
Publicerad vid Institutionen för kliniska vetenskaper, sektionen för kvinnors och barns hälsa, Avdelningen för obstetrik och gynekologi
Sidor 1156-1167
Språk en
Länkar dx.doi.org/10.1056/NEJMoa1612665
Ämnesord genome-wide association, variants, loci, age, weight, polymorphisms, risk, differentiation, susceptibility, endometriosis, General & Internal Medicine
Ämneskategorier Obstetrik och gynekologi

Sammanfattning

BACKGROUND Despite evidence that genetic factors contribute to the duration of gestation and the risk of preterm birth, robust associations with genetic variants have not been identified. We used large data sets that included the gestational duration to determine possible genetic associations. We performed a genomewide association study in a discovery set of samples obtained from 43,568 women of European ancestry using gestational duration as a continuous trait and term or preterm (< 37 weeks) birth as a dichotomous outcome. We used samples from three Nordic data sets (involving a total of 8643 women) to test for replication of genomic loci that had significant genomewide association (P< 5.0x10(-8)) or an association with suggestive significance (P< 1.0x10(-6)) in the discovery set. In the discovery and replication data sets, four loci (EBF1, EEFSEC, AGTR2, and WNT4) were significantly associated with gestational duration. Functional analysis showed that an implicated variant in WNT4 alters the binding of the estrogen receptor. The association between variants in ADCY5 and RAP2C and gestational duration had suggestive significance in the discovery set and significant evidence of association in the replication sets; these variants also showed genomewide significance in a joint analysis. Common variants in EBF1, EEFSEC, and AGTR2 showed association with preterm birth with genomewide significance. An analysis of mother-infant dyads suggested that these variants act at the level of the maternal genome. In this genomewide association study, we found that variants at the EBF1, EEFSEC, AGTR2, WNT4, ADCY5, and RAP2C loci were associated with gestational duration and variants at the EBF1, EEFSEC, and AGTR2 loci with preterm birth. Previously established roles of these genes in uterine development, maternal nutrition, and vascular control support their mechanistic involvement.

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