Evidence map›Paper›PMID 27132594›Full record

ArticleAmerican journal of human genetics2016

Identification of Common Genetic Variants Influencing Spontaneous Dizygotic Twinning and Female Fertility.

Hamdi Mbarek, Stacy Steinberg, Dale R Nyholt, Scott D Gordon, Michael B Miller, Allan F McRae, Jouke Jan Hottenga, Felix R Day, Gonneke Willemsen, Eco J de Geus and 27 more

Open access · bronzeAbstract readComparative StudyTwin Study
In one paragraph

Article in American journal of human genetics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 6 pooled it
38.6field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

55 citing papers in PubMed, 6 syntheses or guidelines pooled it, 126 citations in OpenAlex.

  1. New insights into the (epi)genetics of twinning.Human reproduction (Oxford, England) · 2024
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  11. Inflammatory and Redox Mediators in Rat and Human Ovulation.International journal of molecular sciences · 2025
    Review
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  16. Evolution of Litter Size: Proximate and Ultimate Mechanisms.Integrative and comparative biology · 2024
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

37 authors at 19 institutions in 8 countries.

Hamdi MbarekDepartment of Biological Psychology, Vrije Universiteit, 1081BT Amsterdam, the Netherlands; EMGO+ Institute for Health and Care Research, 1081BT Amsterdam, the Netherlands. Electronic address: h.mbarek@vu.nl.
Stacy SteinbergdeCODE Genetics, 101 Reykjavik, Iceland.
Dale R NyholtInstitute of Health and Biomedical Innovation, Queensland University of Technology, 4059 Brisbane, Australia; QIMR Berghofer Medical Research Institute, 4029 Brisbane, Australia.
Scott D GordonQIMR Berghofer Medical Research Institute, 4029 Brisbane, Australia.
Michael B MillerDepartment of Psychology, University of Minnesota, Minneapolis, MN 55455, USA.
Allan F McRaeQIMR Berghofer Medical Research Institute, 4029 Brisbane, Australia; Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia.
Jouke Jan HottengaDepartment of Biological Psychology, Vrije Universiteit, 1081BT Amsterdam, the Netherlands; EMGO+ Institute for Health and Care Research, 1081BT Amsterdam, the Netherlands.
Felix R DayMRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge Biomedical Campus, Cambridge CB2 0QQ, UK.
Gonneke WillemsenDepartment of Biological Psychology, Vrije Universiteit, 1081BT Amsterdam, the Netherlands; EMGO+ Institute for Health and Care Research, 1081BT Amsterdam, the Netherlands.
Eco J de GeusDepartment of Biological Psychology, Vrije Universiteit, 1081BT Amsterdam, the Netherlands; EMGO+ Institute for Health and Care Research, 1081BT Amsterdam, the Netherlands.
Gareth E DaviesAvera Institute for Human Genetics, Sioux Falls, SD 57108, USA.
Hilary C MartinWellcome Trust Centre for Human Genetics, Oxford OX3 TBN, UK.
Brenda W PenninxDepartment of Psychiatry and EMGO Institute for Health and Care Research, Vrije U Universiteit, Medical Center/GGZ inGeest, 1081HL Amsterdam, the Netherlands.
Rick JansenDepartment of Psychiatry and EMGO Institute for Health and Care Research, Vrije U Universiteit, Medical Center/GGZ inGeest, 1081HL Amsterdam, the Netherlands.
Kerrie McAloneyQIMR Berghofer Medical Research Institute, 4029 Brisbane, Australia.
Jacqueline M VinkDepartment of Biological Psychology, Vrije Universiteit, 1081BT Amsterdam, the Netherlands.
Jaakko KaprioInstitute for Molecular Medicine Finland FIMM, University of Helsinki; Department of Public Health, University of Helsinki; National Institute for Health and Welfare, 00014 Helsinki, Finland.
Robert PlominMedical Research Council Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London SE5 8AF, UK.
Tim D SpectorDepartment of Twin Research & Genetic Epidemiology, King's College London, London SE1 7EH, UK.
Patrik K MagnussonDepartment of Medical Epidemiology and Biostatistics, Karolinska Institute, 171 77 Stockholm, Sweden.
Bruno ReversadeInstitute of Medical Biology, Laboratory of Human Genetics and Embryology, A(∗)STAR, 138648 Singapore, Singapore; Amsterdam Reproduction & Development, Academic Medical Centre, Reproductive Biology Laboratory (Q3-119), Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Department of Obstetrics, Gynecology and Reproductive Medicine, VU University Medical Center, 1007MB Amsterdam, the Netherlands.
R Alan HarrisDivision of Maternal-Fetal Medicine, Departments of Obstetrics and Gynecology, Molecular and Human Genetics, and Molecular and Cell Biology, Baylor College of Medicine and Texas Children's Hospital, Houston, TX 77030, USA.
Kjersti AagaardDivision of Maternal-Fetal Medicine, Departments of Obstetrics and Gynecology, Molecular and Human Genetics, and Molecular and Cell Biology, Baylor College of Medicine and Texas Children's Hospital, Houston, TX 77030, USA.
Ragnar P KristjanssondeCODE Genetics, 101 Reykjavik, Iceland.
Isleifur OlafssonDepartment of Clinical Biochemistry, Landspitali-The National University Hospital of Iceland, 101 Reykjavik, Iceland.
Gudmundur Ingi EyjolfssonIcelandic Medical Center (Laeknasetrid), Laboratory in Mjodd (RAM), 101 Reykjavik, Iceland.
Olof SigurdardottirDepartment of Clinical Biochemistry, Akureyri Hospital, 109 Akureyri, Iceland.
William G IaconoDepartment of Psychology, University of Minnesota, Minneapolis, MN 55455, USA.
Cornelis B LambalkDepartment of Obstetrics, Gynecology and Reproductive Medicine, VU University Medical Center, 1007MB Amsterdam, the Netherlands.
Grant W MontgomeryQIMR Berghofer Medical Research Institute, 4029 Brisbane, Australia.
Matt McGueDepartment of Psychology, University of Minnesota, Minneapolis, MN 55455, USA.
Ken K OngMRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge Biomedical Campus, Cambridge CB2 0QQ, UK.
John R B PerryMRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge Biomedical Campus, Cambridge CB2 0QQ, UK.
Nicholas G MartinQIMR Berghofer Medical Research Institute, 4029 Brisbane, Australia.
Hreinn StefánssondeCODE Genetics, 101 Reykjavik, Iceland.
Kari StefánssondeCODE Genetics, 101 Reykjavik, Iceland.
Dorret I BoomsmaDepartment of Biological Psychology, Vrije Universiteit, 1081BT Amsterdam, the Netherlands; EMGO+ Institute for Health and Care Research, 1081BT Amsterdam, the Netherlands. Electronic address: di.boomsma@vu.nl.
Amsterdam Public Health · NLdeCODE Genetics (Iceland) · ISQIMR Berghofer Medical Research Institute · AUUniversity of Cambridge · GBUniversity of Minnesota · USBaylor College of Medicine · USKing's College London · GBAgency for Science, Technology and Research · SGAkureyri Hospital · ISAmsterdam UMC Location Vrije Universiteit Amsterdam · NLAvera Health · USCentre for Human Genetics · GBInnovation Center Iceland · ISKarolinska Institutet · SENational University Hospital of Iceland · ISQueensland University of Technology · AUThe University of Queensland · AUUniversity of Helsinki · FIVrije Universiteit Amsterdam · NL

Funding

TWIN STUDY OF FEMALE ALCOHOLISMS AND OTHER DISORDERSR01AA009367 · NIAAA · UNIVERSITY OF MINNESOTA TWIN CITIES · PI MCGUE, MATTHEW K. · 1992 to 2013
$9.0M
Twin Family Study of Vulnerability to Substance AbuseR37DA005147 · NIDA · UNIVERSITY OF MINNESOTA · PI IACONO, WILLIAM G. · 2009 to 2018
$6.4M
TWIN/FAMILY STUDY OF VULNERABILITY TO SUBSTANCE ABUSER01DA005147 · NIDA · UNIVERSITY OF MINNESOTA TWIN CITIES · PI IACONO, WILLIAM G · 1987 to 2007
$5.5M
Adolescent drinking and midlife outcomes: A prospective cotwin control studyR37AA009367 · NIAAA · UNIVERSITY OF MINNESOTA · PI MCGUE, MATTHEW K. · 2016 to 2024
$5.4M
TWIN STUDY OF ADHD, CD, AND SUBSTANCE ABUSER01DA013240 · NIDA · UNIVERSITY OF MINNESOTA TWIN CITIES · PI IACONO, WILLIAM G. · 2000 to 2010
$5.0M
Adult consequences of youth substance use: Twin study enriched for SUD riskR01DA036216 · NIDA · UNIVERSITY OF MINNESOTA · PI IACONO, WILLIAM G. · 2013 to 2017
$3.2M
SIBLING MODELS OF ADOLESCENT ALCOHOL USE AND ABUSER01AA011886 · NIAAA · UNIVERSITY OF MINNESOTA TWIN CITIES · PI MCGUE, MATTHEW K. · 1998 to 2008
$2.5M
Substance Abuse & Behavioral Disinhibition: Integrating Genes & EnvironmentR01DA024417 · NIDA · UNIVERSITY OF MINNESOTA · PI IACONO, WILLIAM G. · 2011 to 2011
$1.6M
NIAAA NIH HHS R01 AA011886NIAAA NIH HHS R37 AA009367NIDA NIH HHS R01 DA005147NIDA NIH HHS R01 DA013240NIDA NIH HHS R01 DA024417NIDA NIH HHS R01 DA036216NIDA NIH HHS R37 DA005147
6 · The paper itself

Abstract

Spontaneous dizygotic (DZ) twinning occurs in 1%-4% of women, with familial clustering and unknown physiological pathways and genetic origin. DZ twinning might index increased fertility and has distinct health implications for mother and child. We performed a GWAS in 1,980 mothers of spontaneous DZ twins and 12,953 control subjects. Findings were replicated in a large Icelandic cohort and tested for association across a broad range of fertility traits in women. Two SNPs were identified (rs11031006 near FSHB, p = 1.54 × 10(-9), and rs17293443 in SMAD3, p = 1.57 × 10(-8)) and replicated (p = 3 × 10(-3) and p = 1.44 × 10(-4), respectively). Based on ∼90,000 births in Iceland, the risk of a mother delivering twins increased by 18% for each copy of allele rs11031006-G and 9% for rs17293443-C. A higher polygenic risk score (PRS) for DZ twinning, calculated based on the results of the DZ twinning GWAS, was significantly associated with DZ twinning in Iceland (p = 0.001). A higher PRS was also associated with having children (p = 0.01), greater lifetime parity (p = 0.03), and earlier age at first child (p = 0.02). Allele rs11031006-G was associated with higher serum FSH levels, earlier age at menarche, earlier age at first child, higher lifetime parity, lower PCOS risk, and earlier age at menopause. Conversely, rs17293443-C was associated with later age at last child. We identified robust genetic risk variants for DZ twinning: one near FSHB and a second within SMAD3, the product of which plays an important role in gonadal responsiveness to FSH. These loci contribute to crucial aspects of reproductive capacity and health.

Indexed as

AnxietyCase-Control StudiesDepressionFamilyFemaleFertilityFollicle Stimulating HormoneGenetic VariationGenome-Wide Association StudyHumansLongitudinal StudiesMaleMothersPolycystic Ovary SyndromePregnancyTwins, DizygoticFollicle Stimulating Hormone

Identifiers

PMID27132594
PMCPMC4863559
OpenAlexW2342971458

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.