Related Experiment Video
Updated: Jul 16, 2026
13:11
Optimized Analysis of DNA Methylation and Gene Expression from Small, Anatomically-defined Areas of the Brain
Published on: July 12, 2012
Epigenetics--DNA-based mirror of our environment?
1Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA. cooneycraiga@uams.edu
Disease Markers
|February 28, 2007
Summary
Epigenetics influences health and traits across generations. Environmental factors like diet and behavior can alter epigenetic patterns, impacting future health and longevity.
Area of Science:
- Molecular Biology
- Genetics
- Environmental Health
Background:
- Epigenetics plays a crucial role in mammalian inheritance, influencing health, appearance, and behavior.
- Environmental factors are known to impact epigenetic modifications.
Purpose of the Study:
- To explore the interactive relationship between environmental influences and epigenetic changes.
- To understand how directed epigenetic modifications can be leveraged for improved health and longevity.
Main Methods:
- The study reviews existing research on environmental impacts on epigenetics.
- It synthesizes findings on intergenerational epigenetic inheritance.
Main Results:
- Nutrients, drugs, and behaviors can directly alter epigenetic patterns.
- These alterations are, in some cases, heritable across generations.
- Epigenetic modifications are highly responsive to environmental cues.
Conclusions:
- Epigenetics is a dynamic interface between the environment and inherited traits.
- Further research is needed to harness epigenetic mechanisms for health and longevity interventions.
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...
01:37Epigenetic Regulation
Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
X-chromosome...
01:46Epigenetic Regulation
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
01:46Epigenetic Regulation
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
02:30Genomic Imprinting and Inheritance
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
03:17Inheritance of Chromatin Structures
Epigenetics is the study of inherited changes in a cell's phenotype without changing the DNA sequences. It provides a form of memory for the differential gene expression pattern to maintain cell lineage, position-effect variegation, dosage compensation, and maintenance of chromatin structures such as telomeres and centromeres. For example, the structure and location of the centromere on chromosomes are epigenetically inherited. Its functionality is not dictated or ensured by the underlying DNA...