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Epigenetic Regulation01:46

Epigenetic Regulation

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Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
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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.
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Developmental psychology explores the changes and continuities in human abilities throughout life, encompassing physical, cognitive, linguistic, and social dimensions. Human development is not restricted to growth, but includes aspects of decline, particularly in physical abilities as individuals age. Developmental psychologists seek to understand how people change as they age and how their mental and social skills evolve.Developmental MilestonesA key concept in developmental psychology is...
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In the case of stringed instruments like the guitar, the elastic property that determines the speed of the sound produced is its linear mass density or the mass per unit length. This is simply called the linear density. If the string's linear density is constant along the string, then the linear density is simply the total mass divided by the total length.
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Related Experiment Video

Updated: Feb 1, 2026

Clock Scan Protocol for Image Analysis: ImageJ Plugins
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Developmental Tuning of Epigenetic Clock.

Alexander Vaiserman1

  • 1Institute of Gerontology, Kiev, Ukraine.

Frontiers in Genetics
|December 8, 2018
PubMed
Summary

Early life experiences significantly influence aging. Epigenetic changes, like DNA methylation, are programmed early, affecting health and functional decline throughout life.

Area of Science:

  • Gerontology
  • Developmental Biology
  • Epigenetics

Background:

  • Traditional gerontology research focuses on later life stages.
  • Emerging evidence suggests early development programs age-related functional decline and health.
  • Epigenetic mechanisms are key mediators of these long-term effects.

Purpose of the Study:

  • To summarize and discuss recent findings on early-life determinants of epigenetic drift.
  • To highlight the role of early development in programming life-course aging dynamics.
  • To explore how environmental conditions shape epigenetic patterns over time.

Main Methods:

  • Review of recent cohort studies and research findings.
  • Discussion of epigenetic mechanisms including DNA methylation, histone modifications, and non-coding RNAs.
Keywords:
DNA methylationage-related diseaseaging ratedevelopmental programmingepigenetic clockepigenetic drift

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  • Analysis of epigenetic clock and its relation to chronological age.

    • Main Results:

    • Epigenetic patterns (epigenetic drift) are influenced by early-life environments.
    • Individual differences in epigenetic profiles can result from environmental cues or random errors.
    • Epigenetic clock rates appear developmentally adjusted and linked to early-life programming.

    Conclusions:

    • Early-life factors are critical determinants of life-course epigenetic drift.
    • The rate and direction of aging-associated epigenetic changes are established early in development.
    • Understanding these early programming events is crucial for gerontology research.