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Related Concept Videos

Gene-Environment Interactions01:20

Gene-Environment Interactions

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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...
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Background and Environment Affect Phenotype02:27

Background and Environment Affect Phenotype

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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...
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Causes of Social Behavior III: Biological and Environmental Influences01:28

Causes of Social Behavior III: Biological and Environmental Influences

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Social behavior is a complex phenomenon that arises from the interaction between biological predispositions and environmental influences. This intricate interplay shapes how individuals think, feel, and act in various social contexts. Understanding these mechanisms requires insights from psychology, neuroscience, genetics, and evolutionary theory.Environmental Influences on Social BehaviorEnvironmental factors, including temperature, odors, and visual stimuli, play a crucial role in shaping...
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Behavioral Genetics and Its Designs01:23

Behavioral Genetics and Its Designs

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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...
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Transcription01:10

Transcription

158.6K
Overview
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
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Transcription01:17

Transcription

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Transcription is the synthesis of RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in correctly synthesizing messenger RNA (mRNA). Transcriptional regulation is responsible for the differentiation of different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds of RNA Molecules
In eukaryotes,...
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Related Experiment Video

Updated: Mar 24, 2026

Gene-environment Interaction Models to Unmask Susceptibility Mechanisms in Parkinson's Disease
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Environment and Genes: What Is the Interaction?

Richard S Blumberg1

  • 1GI Division, Harvard Medical School Brigham and Women's Hospital, Boston, Mass., USA.

Digestive Diseases (Basel, Switzerland)
|March 17, 2016
PubMed
Summary

Inflammatory bowel disease (IBD) arises from complex interactions between host genetics, the immune system, gut microbiota, and environmental factors. Environmental influences are key in IBD development, impacting the gut microbiome and immune responses.

Area of Science:

  • Gastroenterology and Immunology
  • Microbiome Research
  • Environmental Health

Background:

  • Inflammatory bowel disease (IBD) pathogenesis involves intricate interactions between host genetics, the immune system, intestinal microbiota, and environmental factors.
  • Emerging evidence suggests IBD is a complex syndromic disorder influenced by multiple biological pathways, including innate and adaptive immunity, endoplasmic reticulum stress, autophagy, and metabolic homeostasis.
  • The increasing global incidence and migration patterns indicate a significant role for environmental factors in IBD development and progression.

Purpose of the Study:

  • To explore the complex interplay of factors contributing to Inflammatory Bowel Disease (IBD).
  • To highlight the central role of environmental influences in IBD pathogenesis.
  • To understand how environmental factors interact with host genetics and the microbiota to trigger IBD.

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Main Methods:

  • Review of recent scientific literature on IBD.
  • Analysis of the interactions between host-immune system, microbiota, genetics, and environment.
  • Exploration of syndromic nature and biological pathways involved in IBD.

Main Results:

  • IBD results from a complex interplay of host genetics, immune responses, intestinal microbiota, and environmental factors.
  • Environmental factors are crucial in IBD pathogenesis, influencing microbiota-immune system interactions and potentially via epigenetic modifications.
  • The disorder's syndromic nature involves multiple interacting pathways affecting immunity and cellular homeostasis.

Conclusions:

  • Environmental factors play a critical role in IBD pathogenesis, interacting with host genetics and the gut microbiota.
  • Understanding these complex interactions, potentially including epigenetic effects, is essential for unraveling IBD development.
  • Further research into environmental triggers and their impact on the microbiota-immune axis is warranted for early life interventions.