Related Experiment Video
Updated: May 21, 2026
08:09
Gene-environment Interaction Models to Unmask Susceptibility Mechanisms in Parkinson's Disease
Published on: January 7, 2014
Simulating gene-gene and gene-environment interactions in complex diseases: Gene-Environment iNteraction Simulator 2.
Michele Pinelli1, Giovanni Scala, Roberto Amato
1Gruppo Interdipartimentale di Bioinformatica e Biologia Computazionale, Università di Napoli "Federico II" - Università di Salerno, Italy. michele.pinelli@unina.it
BMC Bioinformatics
|June 16, 2012
Summary
The Gene-Environment iNteraction Simulator 2 (GENS2) generates realistic data for testing statistical models that identify gene-gene and gene-environment interactions in complex diseases.
Area of Science:
- Human genetics
- Computational biology
- Statistical genetics
Background:
- Complex diseases involve multifactorial genetic and environmental influences.
- Current statistical models struggle to identify these interacting factors.
- Simulations with realistic data are crucial for method evaluation.
Purpose of the Study:
- To introduce the Gene-Environment iNteraction Simulator 2 (GENS2).
- To provide a tool for simulating gene-gene and gene-environment interactions.
- To generate benchmark datasets for statistical model assessment.
Main Methods:
- GENS2 simulates interactions among genetic and environmental factors, including epistasis.
- It utilizes realistic linkage disequilibrium patterns and supports large datasets.
- The simulator offers an intuitive interface with epidemiological quantities and is Python-based.
Main Results:
- GENS2 can simulate complex gene-gene and gene-environment interactions.
- It imposes no limitations on the number of individuals or non-predisposing factors.
- The tool is available with graphical and command-line interfaces.
Conclusions:
- GENS2 provides a valuable resource for simulating interaction data.
- The generated data serves as a benchmark for statistical tools.
- It aids in the evaluation of methods for identifying complex disease interactions.
More Related Videos
13:34A Combined 3D Tissue Engineered In Vitro/In Silico Lung Tumor Model for Predicting Drug Effectiveness in Specific Mutational Backgrounds
Published on: April 6, 2016
14:06Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays
Published on: November 12, 2012
Related Concept Videos
01:20Gene-Environment Interactions
Gene expression is a dynamic process that is significantly influenced by environmental factors. This interaction underlies the complex nature of biological development and the phenotypic differences observed among individuals, even among those with identical genetic makeups. Factors such as radiation, temperature, behavior, nutrition, and stress play pivotal roles in determining how genes are expressed. The concept of the reaction range is central to understanding this interaction. It posits...
02:27Background and Environment Affect Phenotype
Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
02:46Genetic Screens
Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which result in visible changes...
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which result in visible changes...
01:23Behavioral Genetics and Its Designs
Behavior genetics explores how genetic inheritance influences human behavior. It focuses on how genes, passed from parents to offspring, contribute to the development of behavioral traits and tendencies. This branch of genetics seeks to understand the complex interplay between inherited genetic factors and environmental influences in shaping our behaviors.
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
01:09Epistasis Analysis
Although Mendel chose seven unrelated traits in peas to study gene segregation, most traits involve multiple gene interactions that create a spectrum of phenotypes. When the interaction of various genes or alleles at different locations influences a phenotype, this is called epistasis. Epistasis often involves one gene masking or interfering with the expression of another (antagonistic epistasis). Epistasis often occurs when different genes are part of the same biochemical pathway. The...
01:11Genome-wide Association Studies-GWAS
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...