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Aging01:26

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Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
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Related Experiment Video

Updated: Apr 10, 2026

Preparation of Acute Hippocampal Slices from Rats and Transgenic Mice for the Study of Synaptic Alterations during Aging and Amyloid Pathology
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Neuronal epigenetics and the aging synapse.

Jorge Azpurua1, Benjamin A Eaton1

  • 1Department of Physiology, University of Texas Health Science Center at San Antonio San Antonio, TX, USA.

Frontiers in Cellular Neuroscience
|June 16, 2015
PubMed
Summary
This summary is machine-generated.

Aging impairs brain and muscle function by affecting neuronal synapses. This review explores how aging impacts synapse structure and neurotransmission, linking epigenetics to age-related cognitive and motor decline variations.

Keywords:
acetylationagingepigeneticsneurotransmissionsynapses

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Area of Science:

  • Neuroscience
  • Gerontology
  • Epigenetics

Background:

  • Aging is characterized by cognitive decline and motor function loss.
  • Neuronal synapses are crucial for cognition and muscle contraction.
  • Normal aging disrupts central and peripheral synapse structure and neurotransmission.

Purpose of the Study:

  • Review literature on aging's impact on synapse function.
  • Connect epigenetics of aging to synapse regulation.
  • Explain individual variations in age-related dysfunction.

Main Methods:

  • Literature review of aging, neuroscience, and epigenetics.
  • Analysis of studies on synapse structure and neurotransmission.
  • Exploration of epigenetic mechanisms in aging.

Main Results:

  • Physiological aging degrades synapse structure and neurotransmission.
  • Epigenetic mechanisms influence synapse function and structure.
  • Epigenetics may explain individual differences in aging.

Conclusions:

  • Aging significantly disrupts neuronal synapse function.
  • Epigenetic factors play a key role in age-related neurological decline.
  • Further research into epigenetics can elucidate individual aging trajectories.