@article {7736,
	title = {Rare coding variants and X-linked loci associated with age at menarche.},
	journal = {Nat Commun},
	volume = {6},
	year = {2015},
	month = {2015},
	pages = {7756},
	abstract = {<p>More than 100 loci have been identified for age at menarche by genome-wide association studies; however, collectively these explain only \~{}3\% of the trait variance. Here we test two overlooked sources of variation in 192,974 European ancestry women: low-frequency protein-coding variants and X-chromosome variants. Five missense/nonsense variants (in ALMS1/LAMB2/TNRC6A/TACR3/PRKAG1) are associated with age at menarche (minor allele frequencies 0.08-4.6\%; effect sizes 0.08-1.25 years per allele; P<5 {\texttimes} 10(-8)). In addition, we identify common X-chromosome loci at IGSF1 (rs762080, P=9.4 {\texttimes} 10(-13)) and FAAH2 (rs5914101, P=4.9 {\texttimes} 10(-10)). Highlighted genes implicate cellular energy homeostasis, post-transcriptional gene silencing and fatty-acid amide signalling. A frequently reported mutation in TACR3 for idiopathic hypogonatrophic hypogonadism (p.W275X) is associated with 1.25-year-later menarche (P=2.8 {\texttimes} 10(-11)), illustrating the utility of population studies to estimate the penetrance of reportedly pathogenic mutations. Collectively, these novel variants explain \~{}0.5\% variance, indicating that these overlooked sources of variation do not substantially explain the {\textquoteright}missing heritability{\textquoteright} of this complex trait.</p>},
	issn = {2041-1723},
	doi = {10.1038/ncomms8756},
	author = {Lunetta, Kathryn L and Day, Felix R and Sulem, Patrick and Ruth, Katherine S and Tung, Joyce Y and Hinds, David A and Esko, T{\~o}nu and Elks, Cathy E and Altmaier, Elisabeth and He, Chunyan and Huffman, Jennifer E and Mihailov, Evelin and Porcu, Eleonora and Robino, Antonietta and Rose, Lynda M and Schick, Ursula M and Stolk, Lisette and Teumer, Alexander and Thompson, Deborah J and Traglia, Michela and Wang, Carol A and Yerges-Armstrong, Laura M and Antoniou, Antonis C and Barbieri, Caterina and Coviello, Andrea D and Cucca, Francesco and Demerath, Ellen W and Dunning, Alison M and Gandin, Ilaria and Grove, Megan L and Gudbjartsson, Daniel F and Hocking, Lynne J and Hofman, Albert and Huang, Jinyan and Jackson, Rebecca D and Karasik, David and Kriebel, Jennifer and Lange, Ethan M and Lange, Leslie A and Langenberg, Claudia and Li, Xin and Luan, Jian{\textquoteright}an and M{\"a}gi, Reedik and Morrison, Alanna C and Padmanabhan, Sandosh and Pirie, Ailith and Polasek, Ozren and Porteous, David and Reiner, Alex P and Rivadeneira, Fernando and Rudan, Igor and Sala, Cinzia F and Schlessinger, David and Scott, Robert A and St{\"o}ckl, Doris and Visser, Jenny A and V{\"o}lker, Uwe and Vozzi, Diego and Wilson, James G and Zygmunt, Marek and Boerwinkle, Eric and Buring, Julie E and Crisponi, Laura and Easton, Douglas F and Hayward, Caroline and Hu, Frank B and Liu, Simin and Metspalu, Andres and Pennell, Craig E and Ridker, Paul M and Strauch, Konstantin and Streeten, Elizabeth A and Toniolo, Daniela and Uitterlinden, Andr{\'e} G and Ulivi, Sheila and V{\"o}lzke, Henry and Wareham, Nicholas J and Wellons, Melissa and Franceschini, Nora and Chasman, Daniel I and Thorsteinsdottir, Unnur and Murray, Anna and Stefansson, Kari and Murabito, Joanne M and Ong, Ken K and Perry, John R B}
}
@article {7724,
	title = {Trans-ethnic meta-analysis of white blood cell phenotypes.},
	journal = {Hum Mol Genet},
	volume = {23},
	year = {2014},
	month = {2014 Dec 20},
	pages = {6944-60},
	abstract = {<p>White blood cell (WBC) count is a common clinical measure used as a predictor of certain aspects of human health, including immunity and infection status. WBC count is also a complex trait that varies among individuals and ancestry groups. Differences in linkage disequilibrium structure and heterogeneity in allelic effects are expected to play a role in the associations observed between populations. Prior genome-wide association study (GWAS) meta-analyses have identified genomic loci associated with WBC and its subtypes, but much of the heritability of these phenotypes remains unexplained. Using GWAS summary statistics for over 50 000 individuals from three diverse populations (Japanese, African-American and European ancestry), a Bayesian model methodology was employed to account for heterogeneity between ancestry groups. This approach was used to perform a trans-ethnic meta-analysis of total WBC, neutrophil and monocyte counts. Ten previously known associations were replicated and six new loci were identified, including several regions harboring genes related to inflammation and immune cell function. Ninety-five percent credible interval regions were calculated to narrow the association signals and fine-map the putatively causal variants within loci. Finally, a conditional analysis was performed on the most significant SNPs identified by the trans-ethnic meta-analysis (MA), and nine secondary signals within loci previously associated with WBC or its subtypes were identified. This work illustrates the potential of trans-ethnic analysis and ascribes a critical role to multi-ethnic cohorts and consortia in exploring complex phenotypes with respect to variants that lie outside the European-biased GWAS pool.</p>},
	keywords = {African Americans, Asian Continental Ancestry Group, Bayes Theorem, European Continental Ancestry Group, Genome, Human, Genome-Wide Association Study, Genotype, Humans, Leukocyte Count, Leukocytes, Linkage Disequilibrium, Phenotype, Polymorphism, Single Nucleotide, Quantitative Trait Loci},
	issn = {1460-2083},
	doi = {10.1093/hmg/ddu401},
	author = {Keller, Margaux F and Reiner, Alexander P and Okada, Yukinori and van Rooij, Frank J A and Johnson, Andrew D and Chen, Ming-Huei and Smith, Albert V and Morris, Andrew P and Tanaka, Toshiko and Ferrucci, Luigi and Zonderman, Alan B and Lettre, Guillaume and Harris, Tamara and Garcia, Melissa and Bandinelli, Stefania and Qayyum, Rehan and Yanek, Lisa R and Becker, Diane M and Becker, Lewis C and Kooperberg, Charles and Keating, Brendan and Reis, Jared and Tang, Hua and Boerwinkle, Eric and Kamatani, Yoichiro and Matsuda, Koichi and Kamatani, Naoyuki and Nakamura, Yusuke and Kubo, Michiaki and Liu, Simin and Dehghan, Abbas and Felix, Janine F and Hofman, Albert and Uitterlinden, Andr{\'e} G and van Duijn, Cornelia M and Franco, Oscar H and Longo, Dan L and Singleton, Andrew B and Psaty, Bruce M and Evans, Michelle K and Cupples, L Adrienne and Rotter, Jerome I and O{\textquoteright}Donnell, Christopher J and Takahashi, Atsushi and Wilson, James G and Ganesh, Santhi K and Nalls, Mike A}
}
