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Updated: Nov 10, 2025

Generation of Genetically Modified Mice through the Microinjection of Oocytes
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From mice to men.

J Christian Althaus1,2, Michael A Sutton1,2

  • 1Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, United States.

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Summary
This summary is machine-generated.

All-trans retinoic acid (ATRA) promotes synapse plasticity in human brain cells. This occurs via the spine apparatus, enhancing neural circuit function and structure.

Keywords:
humanhuman cortexmouseneuroscienceretinoic acidsynaptic plasticitysynaptopodinvitamin A

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Area of Science:

  • Neuroscience
  • Cell Biology
  • Molecular Biology

Background:

  • Synaptic plasticity is crucial for cognitive functions.
  • The spine apparatus plays a role in synaptic function.
  • All-trans retinoic acid (ATRA) is a vitamin A derivative with known biological effects.

Purpose of the Study:

  • To investigate the effects of ATRA on synaptic plasticity in human cortical circuits.
  • To elucidate the role of the spine apparatus in ATRA-induced plasticity.

Main Methods:

  • Human cortical organoids were used as a model system.
  • Electrophysiological recordings assessed synaptic function.
  • Advanced microscopy techniques visualized structural changes.

Main Results:

  • ATRA significantly enhanced functional synaptic plasticity.
  • Structural analysis revealed ATRA-induced changes in spine apparatus morphology.
  • These structural modifications correlated with improved synaptic function.

Conclusions:

  • ATRA promotes both functional and structural plasticity in human cortical synapses.
  • The spine apparatus is a key mediator of ATRA's effects on neural circuits.