Nan Laird

Statistical Screening Method for Genetic Factors Influencing Susceptibility to Common Diseases in a Two-Stage Genome-Wide Association Study (2009)

Sato, Yasunori, Laird, Nan, Suganami, Hideki, Hamada, Chikuma, Niki, Naoto, Yoshimura, Isao, ...

A genome-wide association study (GWAS) is a standard strategy for detecting disease susceptibility genes, despite unsettled controversies on many aspects, including optimal study design and...

Statistical Screening Method for Genetic Factors Influencing Susceptibility to Common Diseases in a Two-Stage Genome-Wide Association Study (2009)

Sato, Yasunori, Laird, Nan, Suganami, Hideki, Hamada, Chikuma, Niki, Naoto, Yoshimura, Isao, ...

A genome-wide association study (GWAS) is a standard strategy for detecting disease susceptibility genes, despite unsettled controversies on many aspects, including optimal study design and...

Statistical Screening Method for Genetic Factors Influencing Susceptibility to Common Diseases in a Two-Stage Genome-Wide Association Study (2009)

Sato, Yasunori, Laird, Nan, Suganami, Hideki, Hamada, Chikuma, Niki, Naoto, Yoshimura, Isao, ...

A genome-wide association study (GWAS) is a standard strategy for detecting disease susceptibility genes, despite unsettled controversies on many aspects, including optimal study design and...

Statistical Screening Method for Genetic Factors Influencing Susceptibility to Common Diseases in a Two-Stage Genome-Wide Association Study (2009)

Sato, Yasunori, Laird, Nan, Suganami, Hideki, Hamada, Chikuma, Niki, Naoto, Yoshimura, Isao, ...

A genome-wide association study (GWAS) is a standard strategy for detecting disease susceptibility genes, despite unsettled controversies on many aspects, including optimal study design and...

Genome-wide association scan of the time to onset of attention deficit hyperactivity disorder (In special issue: Special Issue on the Genetics of ADHD Dedicated to the Memory of Richard Todd) (2008)

Lasky-Su, Jessica, Anney, Richard J.L., Neale, Benjamin M., Franke, Barbara, Zhou, Kaixin, Maller, Julian B., ...

A time-to-onset analysis for family-based samples was performed on the genomewide association (GWAS) data for attention deficit hyperactivity disorder (ADHD) to determine if associations exist with...

Genome-wide association scan of attention deficit hyperactivity disorder (In special issue: Special Issue on the Genetics of ADHD Dedicated to the Memory of Richard Todd) (2008)

Neale, Benjamin M., Lasky-Su, Jessica, Anney, Richard, Franke, Barbara, Zhou, Kaixin, Maller, Julian B., ...

Results of behavioral genetic and molecular genetic studies have converged to suggest that genes substantially contribute to the development of attention deficit/hyperactivity disorder (ADHD), a...

Genome-wide association scan of the time to onset of attention deficit hyperactivity disorder. (2008)

Lasky-Su, Jessica, Anney, Richard J.L., Neale, Benjamin M., Franke, Barbara, Zhou, Kaixin, Maller, Julian B., ...

A time-to-onset analysis for family-based samples was performed on the genomewide association (GWAS) data for attention deficit hyperactivity disorder (ADHD) to determine if associations exist with...

EFBAT: exact family-based association tests (2007)

Schneiter, Kady, Degnan, James H, Corcoran, Christopher, Xu, Xin, Laird, Nan

Abstract Background Family-based association tests are important tools for investigating genetic risk factors of complex diseases. These tests are especially valuable for being robust to population...

The Association of a SNP Upstream of INSIG2 with Body Mass Index is Reproduced in Several but Not All Cohorts (2007)

Helen N. Lyon, Valur Emilsson, Anke Hinney, Iris M. Heid, Jessica Lasky-Su, Xiaofeng Zhu, ...

A SNP upstream of the INSIG2 gene, rs7566605, was recently found to be associated with obesity as measured by body mass index (BMI) by Herbert and colleagues. The association between increased BMI...

The association of a SNP upstream of INSIG2 with Body Mass Index is reproduced in several but not all cohorts (2007)

Helen N Lyon, Valur Emilsson, Anke Hinney, Iris M. Heid, Jessica Lasky-Su, Xiaofeng Zhu, ...

A SNP upstream of the INSIG2 gene, rs7566605, was recently found to be associated with obesity as measured by body mass index (BMI)[1]. The association between increased BMI and homozygosity for the...

The association of a SNP upstream of INSIG2 with body mass index is reproduced in several but not all cohorts. (2007)

Lyon, Helen N, Emilsson, Valur, Hinney, Anke, Heid, Iris M, Lasky-Su, Jessica, Zhu, Xiaofeng, ...

A SNP upstream of the INSIG2 gene, rs7566605, was recently found to be associated with obesity as measured by body mass index (BMI) by Herbert and colleagues. The association between increased BMI...

A Large-Scale Candidate Gene Association Study on Preterm Delivery: Application of High-Throughput Genotyping Technology and Advanced Statistical Methods (2004)

Hao, Ke, Wang, Xiaobin, Niu, Tianhua, Xu, Xin, Li, Ang, Chang, Weili, ...

Preterm delivery (PTD) is the leading cause of infant mortality and morbidity worldwide. The etiology of PTD is largely unknown but is believed to be complex, encompassing multiple genetic and...

The transforming growth factor-{beta}1 (TGFB1) gene is associated with chronic obstructive pulmonary disease (COPD) (2004)

Celedón, Juan C., Lange, Christoph, Raby, Benjamin A., Litonjua, Augusto A., Palmer, Lyle J., DeMeo, Dawn L., ...

Although cigarette smoking is the primary environmental risk factor, genetic risk factors likely influence the development of chronic obstructive pulmonary disease (COPD). Linkage analysis between...

A candidate gene association study on preterm delivery: application of high-throughput genotyping technology and advanced statistical methods (2004)

Hao, Ke, Wang, Xiaobin, Niu, Tianhua, Xu, Xin, Li, Ang, Chang, Weili, ...

Preterm delivery (PTD) is the leading cause of infant mortality and morbidity worldwide. The etiology of PTD is largely unknown but is believed to be complex, encompassing multiple genetic and...

The transforming growth factor-{beta}1 (TGFB1) gene is associated with chronic obstructive pulmonary disease (COPD) (2004)

Celedón, Juan C., Lange, Christoph, Raby, Benjamin A., Litonjua, Augusto A., Palmer, Lyle J., DeMeo, Dawn L., ...

Although cigarette smoking is the primary environmental risk factor, genetic risk factors likely influence the development of chronic obstructive pulmonary disease (COPD). Linkage analysis between...

A Large-Scale Candidate Gene Association Study on Preterm Delivery: Application of High-Throughput Genotyping Technology and Advanced Statistical Methods (2004)

Hao, Ke, Wang, Xiaobin, Niu, Tianhua, Xu, Xin, Li, Ang, Chang, Weili, ...

Preterm delivery (PTD) is the leading cause of infant mortality and morbidity worldwide. The etiology of PTD is largely unknown but is believed to be complex, encompassing multiple genetic and...

The transforming growth factor-{beta}1 (TGFB1) gene is associated with chronic obstructive pulmonary disease (COPD) (2004)

Celedón, Juan C., Lange, Christoph, Raby, Benjamin A., Litonjua, Augusto A., Palmer, Lyle J., DeMeo, Dawn L., ...

Although cigarette smoking is the primary environmental risk factor, genetic risk factors likely influence the development of chronic obstructive pulmonary disease (COPD). Linkage analysis between...

Age, Period, and Cohort Effects on Pulmonary Function in a 24-Year Longitudinal Study (1995)

Xu, Xiping, Laird, Nan, Dockery, Douglas W., Schouten, Jan P., Rijcken, Bert, Weiss, Scott T.

This paper proposes the use of two-factor models (age-period and age-cohort models) to estimate age, period, and cohort effects on pulmonary function by using the data collected in a 24-year...

Power evaluations for family-based tests of association with incomplete parental genotypes.

Yang, Qiong, Xu, Xin, Laird, Nan

While a variety of methods have been developed to deal with incomplete parental genotype information in family-based association tests, sampling design issues with incomplete parental genotype data...

Polymorphism in Maternal LRP8 Gene Is Associated with Fetal Growth

Wang, Lin, Wang, Xiaobin, Laird, Nan, Zuckerman, Barry, Stubblefield, Philip, Xu, Xin

Fetal growth restriction (FGR) affects >200,000 pregnancies in the United States annually and is associated with increased perinatal mortality and morbidity, as well as poorer long-term health for...

A Common Haplotype of the Nicotine Acetylcholine Receptor α4 Subunit Gene Is Associated with Vulnerability to Nicotine Addiction in Men

Feng, Yan, Niu, Tianhua, Xing, Houxun, Xu, Xin, Chen, Changzhong, Peng, Shaojie, ...

Nicotine is the major addictive substance in cigarettes, and genes involved in sensing nicotine are logical candidates for vulnerability to nicotine addiction. We studied six single-nucleotide...

Power evaluations for family-based tests of association with incomplete parental genotypes.

Yang, Qiong, Xu, Xin, Laird, Nan

While a variety of methods have been developed to deal with incomplete parental genotype information in family-based association tests, sampling design issues with incomplete parental genotype data...

Polymorphism in Maternal LRP8 Gene Is Associated with Fetal Growth

Wang, Lin, Wang, Xiaobin, Laird, Nan, Zuckerman, Barry, Stubblefield, Philip, Xu, Xin

Fetal growth restriction (FGR) affects >200,000 pregnancies in the United States annually and is associated with increased perinatal mortality and morbidity, as well as poorer long-term health for...

The Association of a SNP Upstream of INSIG2 with Body Mass Index is Reproduced in Several but Not All Cohorts

Lyon, Helen N, Emilsson, Valur, Hinney, Anke, Heid, Iris M, Lasky-Su, Jessica, Zhu, Xiaofeng, ...

A SNP upstream of the INSIG2 gene, rs7566605, was recently found to be associated with obesity as measured by body mass index (BMI) by Herbert and colleagues. The association between increased BMI...

A Family-Based Association Test for Repeatedly Measured Quantitative Traits Adjusting for Unknown Environmental and/or Polygenic Effects

Christoph Lange, Kristel Van Steen, Toby Andrew, Helen Lyon, Dawn DeMeo, Benjamin Raby, ...

We propose a family-based association test, FBAT-PC, for studies with quantitative traits that are measured repeatedly. The traits may be influenced by partially or completely unknown factors that...

Impact of Population Stratification on Family-Based Association Tests with Longitudinal Measurements

Xiao Ding, Scott Weiss, Benjamin Raby, Christoph Lange, Nan Laird

Several family-based approaches for testing genetic association with traits obtained from longitudinal or repeated measurement studies have been previously proposed. These approaches utilize the...

On the Replication of Genetic Associations: Timing Can Be Everything!

Lasky-Su, Jessica, Lyon, Helen N., Emilsson, Valur, Heid, Iris M., Molony, Cliona, Raby, Benjamin A., ...

The failure of researchers to replicate genetic-association findings is most commonly attributed to insufficient statistical power, population stratification, or various forms of between-study...

Genome-wide Association Analysis Reveals Putative Alzheimer's Disease Susceptibility Loci in Addition to APOE

Bertram, Lars, Lange, Christoph, Mullin, Kristina, Parkinson, Michele, Hsiao, Monica, Hogan, Meghan F., ...

Alzheimer's disease (AD) is a genetically complex and heterogeneous disorder. To date four genes have been established to either cause early-onset autosomal-dominant AD (APP, PSEN1, and PSEN21–4)...

Attempted Replication of Reported Chronic Obstructive Pulmonary Disease Candidate Gene Associations

Hersh, Craig P., DeMeo, Dawn L., Lange, Christoph, Litonjua, Augusto A., Reilly, John J., Kwiatkowski, David, ...

Case-control studies have successfully identified many significant genetic associations for complex diseases, but lack of replication has been a criticism of case-control genetic association studies...

Meta-Analysis of the INSIG2 Association with Obesity Including 74,345 Individuals: Does Heterogeneity of Estimates Relate to Study Design?

Heid, Iris M., Huth, Cornelia, Loos, Ruth J. F., Kronenberg, Florian, Adamkova, Vera, Anand, Sonia S., ...

The INSIG2 rs7566605 polymorphism was identified for obesity (BMI≥30 kg/m2) in one of the first genome-wide association studies, but replications were inconsistent. We collected statistics from 34...