@article {1556,
	title = {Assessment of gene-by-sex interaction effect on bone mineral density.},
	journal = {J Bone Miner Res},
	volume = {27},
	year = {2012},
	month = {2012 Oct},
	pages = {2051-64},
	abstract = {<p>Sexual dimorphism in various bone phenotypes, including bone mineral density (BMD), is widely observed; however, the extent to which genes explain these sex differences is unclear. To identify variants with different effects by sex, we examined gene-by-sex autosomal interactions genome-wide, and performed expression quantitative trait loci (eQTL) analysis and bioinformatics network analysis. We conducted an autosomal genome-wide meta-analysis of gene-by-sex interaction on lumbar spine (LS) and femoral neck (FN) BMD in 25,353 individuals from 8 cohorts. In a second stage, we followed up the 12 top single-nucleotide polymorphisms (SNPs; p < 1 {\texttimes} 10(-5) ) in an additional set of 24,763 individuals. Gene-by-sex interaction and sex-specific effects were examined in these 12 SNPs. We detected one novel genome-wide significant interaction associated with LS-BMD at the Chr3p26.1-p25.1 locus, near the GRM7 gene (male effect = 0.02 and p = 3.0 {\texttimes} 10(-5) ; female effect = -0.007 and p = 3.3 {\texttimes} 10(-2) ), and 11 suggestive loci associated with either FN- or LS-BMD in discovery cohorts. However, there was no evidence for genome-wide significant (p < 5 {\texttimes} 10(-8) ) gene-by-sex interaction in the joint analysis of discovery and replication cohorts. Despite the large collaborative effort, no genome-wide significant evidence for gene-by-sex interaction was found to influence BMD variation in this screen of autosomal markers. If they exist, gene-by-sex interactions for BMD probably have weak effects, accounting for less than 0.08\% of the variation in these traits per implicated SNP. {\textcopyright} 2012 American Society for Bone and Mineral Research.</p>},
	keywords = {Bone Density, Cohort Studies, Female, Genes, Genome-Wide Association Study, Humans, Male, Meta-Analysis as Topic, Polymorphism, Single Nucleotide, Quantitative Trait Loci, Reproducibility of Results, Sex Characteristics},
	issn = {1523-4681},
	doi = {10.1002/jbmr.1679},
	author = {Liu, Ching-Ti and Estrada, Karol and Yerges-Armstrong, Laura M and Amin, Najaf and Evangelou, Evangelos and Li, Guo and Minster, Ryan L and Carless, Melanie A and Kammerer, Candace M and Oei, Ling and Zhou, Yanhua and Alonso, Nerea and Dailiana, Zoe and Eriksson, Joel and Garc{\'\i}a-Giralt, Natalia and Giroux, Sylvie and Husted, Lise Bjerre and Khusainova, Rita I and Koromila, Theodora and Kung, Annie Waichee and Lewis, Joshua R and Masi, Laura and Mencej-Bedrac, Simona and Nogues, Xavier and Patel, Millan S and Prezelj, Janez and Richards, J Brent and Sham, Pak Chung and Spector, Timothy and Vandenput, Liesbeth and Xiao, Su-Mei and Zheng, Hou-Feng and Zhu, Kun and Balcells, Susana and Brandi, Maria Luisa and Frost, Morten and Goltzman, David and Gonz{\'a}lez-Mac{\'\i}as, Jes{\'u}s and Karlsson, Magnus and Khusnutdinova, Elza K and Kollia, Panagoula and Langdahl, Bente Lomholt and Ljunggren, Osten and Lorentzon, Mattias and Marc, Janja and Mellstr{\"o}m, Dan and Ohlsson, Claes and Olmos, Jos{\'e} M and Ralston, Stuart H and Riancho, Jos{\'e} A and Rousseau, Fran{\c c}ois and Urreizti, Roser and Van Hul, Wim and Zarrabeitia, Mar{\'\i}a T and Castano-Betancourt, Martha and Demissie, Serkalem and Grundberg, Elin and Herrera, Lizbeth and Kwan, Tony and Medina-G{\'o}mez, Carolina and Pastinen, Tomi and Sigurdsson, Gunnar and Thorleifsson, Gudmar and Vanmeurs, Joyce Bj and Blangero, John and Hofman, Albert and Liu, Yongmei and Mitchell, Braxton D and O{\textquoteright}Connell, Jeffrey R and Oostra, Ben A and Rotter, Jerome I and Stefansson, Kari and Streeten, Elizabeth A and Styrkarsdottir, Unnur and Thorsteinsdottir, Unnur and Tylavsky, Frances A and Uitterlinden, Andre and Cauley, Jane A and Harris, Tamara B and Ioannidis, John Pa and Psaty, Bruce M and Robbins, John A and Zillikens, M Carola and Vanduijn, Cornelia M and Prince, Richard L and Karasik, David and Rivadeneira, Fernando and Kiel, Douglas P and Cupples, L Adrienne and Hsu, Yi-Hsiang}
}
