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Genome-wide Association Study of Platelet Count Identifies Ancestry-Specific Loci in Hispanic/Latino Americans.


ABSTRACT: Platelets play an essential role in hemostasis and thrombosis. We performed a genome-wide association study of platelet count in 12,491 participants of the Hispanic Community Health Study/Study of Latinos by using a mixed-model method that accounts for admixture and family relationships. We discovered and replicated associations with five genes (ACTN1, ETV7, GABBR1-MOG, MEF2C, and ZBTB9-BAK1). Our strongest association was with Amerindian-specific variant rs117672662 (p value = 1.16 × 10(-28)) in ACTN1, a gene implicated in congenital macrothrombocytopenia. rs117672662 exhibited allelic differences in transcriptional activity and protein binding in hematopoietic cells. Our results underscore the value of diverse populations to extend insights into the allelic architecture of complex traits.

SUBMITTER: Schick UM 

PROVIDER: S-EPMC4746331 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature

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Genome-wide Association Study of Platelet Count Identifies Ancestry-Specific Loci in Hispanic/Latino Americans.

Schick Ursula M UM   Jain Deepti D   Hodonsky Chani J CJ   Morrison Jean V JV   Davis James P JP   Brown Lisa L   Sofer Tamar T   Conomos Matthew P MP   Schurmann Claudia C   McHugh Caitlin P CP   Nelson Sarah C SC   Vadlamudi Swarooparani S   Stilp Adrienne A   Plantinga Anna A   Baier Leslie L   Bien Stephanie A SA   Gogarten Stephanie M SM   Laurie Cecelia A CA   Taylor Kent D KD   Liu Yongmei Y   Auer Paul L PL   Franceschini Nora N   Szpiro Adam A   Rice Ken K   Kerr Kathleen F KF   Rotter Jerome I JI   Hanson Robert L RL   Papanicolaou George G   Rich Stephen S SS   Loos Ruth J F RJ   Browning Brian L BL   Browning Sharon R SR   Weir Bruce S BS   Laurie Cathy C CC   Mohlke Karen L KL   North Kari E KE   Thornton Timothy A TA   Reiner Alex P AP  

American journal of human genetics 20160121 2


Platelets play an essential role in hemostasis and thrombosis. We performed a genome-wide association study of platelet count in 12,491 participants of the Hispanic Community Health Study/Study of Latinos by using a mixed-model method that accounts for admixture and family relationships. We discovered and replicated associations with five genes (ACTN1, ETV7, GABBR1-MOG, MEF2C, and ZBTB9-BAK1). Our strongest association was with Amerindian-specific variant rs117672662 (p value = 1.16 × 10(-28)) i  ...[more]

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