{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,16]],"date-time":"2025-10-16T01:00:52Z","timestamp":1760576452022,"version":"build-2065373602"},"reference-count":28,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2025,6,11]],"date-time":"2025-06-11T00:00:00Z","timestamp":1749600000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["headachejournal.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Headache"],"published-print":{"date-parts":[[2025,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Placental weight (PW) is a crucial factor in fetal development, influencing various health outcomes throughout life. This study investigates whether there is a causal relationship between PW and the risk of developing migraine.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Genetic variants associated with PW were obtained from the Early Growth Genetics Consortium, including fetal, maternal, and paternal genomes. Migraine data were derived from a 2022 genome\u2010wide association study meta\u2010analysis by the International Headache Genetics Consortium. Significant single nucleotide polymorphisms (SNPs) associated with PW were selected and analyzed to assess causality.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Out of 11 PW phenotypes, six PW phenotypes with at least two SNPs each were included for Mendelian randomization analysis. The analysis revealed that PW (fetal effect, conditional on maternal and paternal genotype) was significantly associated with a reduced risk of migraine (odds ratio 0.81, 95% confidence interval 0.71\u20130.93; <jats:italic>p<\/jats:italic>\u2009=\u20090.003, false discovery rate adjusted <jats:italic>p<\/jats:italic>\u2009=\u20090.018). Sensitivity analyses confirmed the robustness of the findings, showing no evidence of heterogeneity or pleiotropy.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Our findings suggest a potential causal relationship between fetal genetically predicted increased PW and a reduced risk of migraine in the offspring. Further research into the mechanisms underlying this association and its implications for migraine prevention is warranted.<\/jats:p><\/jats:sec>","DOI":"10.1111\/head.14977","type":"journal-article","created":{"date-parts":[[2025,6,11]],"date-time":"2025-06-11T07:49:26Z","timestamp":1749628166000},"page":"1584-1592","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Causal associations between genetically predicted placental weight and migraine"],"prefix":"10.1111","volume":"65","author":[{"given":"Chung\u2010Chih","family":"Liao","sequence":"first","affiliation":[{"name":"Department of Integrated Chinese and Western Medicine Chung Shan Medical University Hospital  Taichung Taiwan"},{"name":"Department of Post\u2010Baccalaureate Veterinary Medicine, College of Medical and Health Science Asia University  Taichung 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Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jung\u2010Miao","family":"Li","sequence":"additional","affiliation":[{"name":"School of Chinese Medicine, College of Chinese Medicine China Medical University  Taichung Taiwan"},{"name":"Department of Chinese Medicine China Medical University Hospital  Taichung 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