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Epigenetic Regulation

Epigenetic 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...

Epigenetic Regulation

Epigenetic Regulation

Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.

Epigenetic Regulation

Epigenetic Regulation

Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.

Gene-Environment Interactions

Gene-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...

Human Genetics

Human Genetics

Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...

Inheritance of Chromatin Structures

Inheritance 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...

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Related Experiment Video

Updated: May 20, 2026

A Zebrafish Model of Diabetes Mellitus and Metabolic Memory

A Zebrafish Model of Diabetes Mellitus and Metabolic Memory

Published on: February 28, 2013

Aging epigenetics: causes and consequences.

Covadonga Huidobro¹, Agustin F Fernandez, Mario F Fraga

¹Cancer Epigenetics Laboratory, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), HUCA, Universidad de Oviedo, Oviedo, Spain.

Molecular Aspects of Medicine

|July 10, 2012

Summary

This summary is machine-generated.

Epigenetic changes regulate organism development and can accumulate as errors, potentially impacting aging in adult stem cells through unknown molecular mechanisms.

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Area of Science:

Epigenetics and developmental biology
Molecular mechanisms of aging

Background:

Epigenetic marks orchestrate growth and development in higher organisms.
Epigenetic variation, potentially from accumulated errors, occurs independently of development.
This variation is influenced by genetic and environmental factors.

Purpose of the Study:

To explore the role of stochastic epigenetic errors in adult stem cells.
To investigate the potential link between epigenetic errors and aging.
To elucidate the underlying molecular mechanisms of age-related epigenetic changes.

Main Methods:

Analysis of epigenetic modifications in adult stem cells.
Investigating the influence of genetic and environmental factors on epigenetic variation.
Studying the molecular pathways involved in epigenetic error accumulation.

Main Results:

Demonstrated that epigenetic variations accumulate stochastically.
Identified links between genetic/environmental factors and epigenetic error rates.
Observed significant epigenetic alterations in adult stem cells associated with aging.

Conclusions:

Stochastic accumulation of epigenetic errors in adult stem cells may contribute to aging.
Further research is needed to fully understand the molecular basis of age-related epigenetic changes.