Grant Number:	1R03CA130045-01 Interpret this number
Primary Investigator:	Mukherjee, Bhramar
Organization:	University Of Michigan At Ann Arbor
Project Title:	Synergism of Gene and Environment in Cancer Studies: a New Bayesian Approach
Fiscal Year:	2007

DESCRIPTION (provided by applicant): The past decade has witnessed the growing importance of statistical planning and inferential techniques in providing solutions to complex problems in medical and health sciences. Two scientific teams are currently dominating clinical medicine and public health: the molecular biology approach with an emphasis on genetics, and the quantitative approach with an emphasis on epidemiology. The developments in these areas jointly are making fundamental contributions to the study of cancer. This application lies in that new interface of human genetics, epidemiology and statistics in cancer research. Case-control studies are being increasingly used for studying the association between a disease and a candidate gene. However, except for some rare diseases, such as Huntington or Tay Sachs disease which may be the result of a deficiency of a single gene product, most common human diseases like cancer have a multifactorial etiology involving complex interplay of many genetic and environ- mental factors. By identifying and characterizing such complicated gene-environment interactions through clinical and epidemiological studies, one has more opportunities to study etiology, diagnosis, prognosis and treatment of complex diseases. In case-control studies of gene-environment association with disease, when genetic and environmental exposures can be assumed to be independent in the underlying population, one may exploit the independence in order to derive more efficient estimation techniques than the traditional logistic regression analysis. Many of the classical results for case- control analysis, which assume the covariate distribution to be non-parametric, do not hold under a constrained space of exposure distributions. However, the gain in efficiency of modern retrospective methods comes at the cost of lack of robustness, since large biases are introduced in the retrospective estimates under violation of the gene-environment independence assumption. The main objective of this research application is to find a natural analytical tool to solve the model specification dilemma of modern retrospective analysis of studies of gene-environment interaction, under three commonly used epidemiological designs. We posit the problem in a Bayesian framework that incorporates uncertainty regarding the assumed constraint of gene-environment independence in a natural data adaptive way. Preliminary results indicate that the proposed estimator is still able to maintain attractive efficiency properties, without relying on unverifiable model constraints. Epidemiologists have often anguished whether to use the case-control or the case-only estimator of gene-environment interaction for a given study, and the current application tries to resolve the question in a novel Bayesian framework. The methods developed may be routinely applied to various epidemiological studies of gene-environment interaction.




Bayesian Modeling For Genetic Anticipation In Presence Of Mutational Heterogeneity: A Case Study In Lynch Syndrome
Authors: Boonstra P.S. , Mukherjee B. , Taylor J.M. , Nilbert M. , Moreno V. , Gruber S.B. .
Source: Biometrics, 2011 Dec; 67(4), p. 1627-37.
PMID: 21627626
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Missing Exposure Data In Stereotype Regression Model: Application To Matched Case-control Study With Disease Subclassification
Authors: Ahn J. , Mukherjee B. , Gruber S.B. , Sinha S. .
Source: Biometrics, 2011 Jun; 67(2), p. 546-58.
PMID: 20560931
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High Risk Of Colorectal And Endometrial Cancer In Ashkenazi Families With The Msh2 A636p Founder Mutation
Authors: Mukherjee B. , Rennert G. , Ahn J. , Dishon S. , Lejbkowicz F. , Rennert H.S. , Shiovitz S. , Moreno V. , Gruber S.B. .
Source: Gastroenterology, 2011 Jun; 140(7), p. 1919-26.
PMID: 21419771
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Risk Of Colorectal Cancer In Self-reported Inflammatory Bowel Disease And Modification Of Risk By Statin And Nsaid Use
Authors: Samadder N.J. , Mukherjee B. , Huang S.C. , Ahn J. , Rennert H.S. , Greenson J.K. , Rennert G. , Gruber S.B. .
Source: Cancer, 2011-04-15 00:00:00.0; 117(8), p. 1640-8.
PMID: 21472711
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Mre11 Deficiency Increases Sensitivity To Poly(adp-ribose) Polymerase Inhibition In Microsatellite Unstable Colorectal Cancers
Authors: Vilar E. , Bartnik C.M. , Stenzel S.L. , Raskin L. , Ahn J. , Moreno V. , Mukherjee B. , Iniesta M.D. , Morgan M.A. , Rennert G. , et al. .
Source: Cancer Research, 2011-04-01 00:00:00.0; 71(7), p. 2632-42.
PMID: 21300766
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A Review Of Statistical Methods For Testing Genetic Anticipation: Looking For An Answer In Lynch Syndrome
Authors: Boonstra P.S. , Gruber S.B. , Raymond V.M. , Huang S.C. , Timshel S. , Nilbert M. , Mukherjee B. .
Source: Genetic Epidemiology, 2010 Nov; 34(7), p. 756-68.
PMID: 20878717
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Case-control Studies Of Gene-environment Interaction: Bayesian Design And Analysis
Authors: Mukherjee B. , Ahn J. , Gruber S.B. , Ghosh M. , Chatterjee N. .
Source: Biometrics, 2010 Sep; 66(3), p. 934-48.
PMID: 19930190
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Shrinkage Estimation For Robust And Efficient Screening Of Single-snp Association From Case-control Genome-wide Association Studies
Authors: Luo S. , Mukherjee B. , Chen J. , Chatterjee N. .
Source: Genetic Epidemiology, 2009 Dec; 33(8), p. 740-50.
PMID: 19434716
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Bayesian Inference For The Stereotype Regression Model: Application To A Case-control Study Of Prostate Cancer
Authors: Ahn J. , Mukherjee B. , Banerjee M. , Cooney K.A. .
Source: Statistics In Medicine, 2009-11-10 00:00:00.0; 28(25), p. 3139-57.
PMID: 19731262
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Calculation Of Risk Of Colorectal And Endometrial Cancer Among Patients With Lynch Syndrome
Authors: Stoffel E. , Mukherjee B. , Raymond V.M. , Tayob N. , Kastrinos F. , Sparr J. , Wang F. , Bandipalliam P. , Syngal S. , Gruber S.B. .
Source: Gastroenterology, 2009 Nov; 137(5), p. 1621-7.
PMID: 19622357
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A note on bias due to fitting prospective multivariate generalized linear models to categorical outcomes ignoring retrospective sampling schemes.
Authors: Mukherjee B. , Liu I. .
Source: Journal Of Multivariate Analysis, 2009 Mar; 100(3), p. 459-472.
EPub date: 2008-06-07 00:00:00.0.
PMID: 34194120
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Semiparametric Bayesian Modeling Of Random Genetic Effects In Family-based Association Studies
Authors: Zhang L. , Mukherjee B. , Hu B. , Moreno V. , Cooney K.A. .
Source: Statistics In Medicine, 2009-01-15 00:00:00.0; 28(1), p. 113-39.
PMID: 18792083
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Tests For Gene-environment Interaction From Case-control Data: A Novel Study Of Type I Error, Power And Designs
Authors: Mukherjee B. , Ahn J. , Gruber S.B. , Rennert G. , Moreno V. , Chatterjee N. .
Source: Genetic Epidemiology, 2008 Nov; 32(7), p. 615-26.
PMID: 18473390
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Fitting Stratified Proportional Odds Models By Amalgamating Conditional Likelihoods
Authors: Mukherjee B. , Ahn J. , Liu I. , Rathouz P.J. , Sánchez B.N. .
Source: Statistics In Medicine, 2008-10-30 00:00:00.0; 27(24), p. 4950-71.
PMID: 18618428
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Association Between 24-hour Urinary Cadmium And Pulmonary Function Among Community-exposed Men: The Va Normative Aging Study
Authors: Lampe B.J. , Park S.K. , Robins T. , Mukherjee B. , Litonjua A.A. , Amarasiriwardena C. , Weisskopf M. , Sparrow D. , Hu H. .
Source: Environmental Health Perspectives, 2008 Sep; 116(9), p. 1226-30.
PMID: 18795167
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Inference Of The Haplotype Effect In A Matched Case-control Study Using Unphased Genotype Data
Authors: Sinha S. , Gruber S.B. , Mukherjee B. , Rennert G. .
Source: The International Journal Of Biostatistics, 2008; 4(1), p. Article 6.
PMID: 20231916
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