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Related Concept Videos

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Biological Causes of Schizophrenia

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Schizophrenia, a severe psychiatric disorder, arises from a complex interplay of biological factors, including genetic predisposition, structural brain abnormalities, neurotransmitter dysregulation, and developmental irregularities. These factors collectively contribute to the onset and progression of the disorder, which typically manifests in late adolescence or early adulthood.
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Related Experiment Video

Updated: Nov 21, 2025

Standardized Data Acquisition for Neuromelanin-Sensitive Magnetic Resonance Imaging of the Substantia Nigra
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Synaptic Pruning in Schizophrenia: Does Minocycline Modulate Psychosocial Brain Development?

Michael C Jones1, Jin Ming Koh2, Kang Hao Cheong1,3

  • 1Science, Mathematics & Technology Cluster, Singapore University of Technology and Design (SUTD), 8 Somapah Road, S487372, Singapore.

Bioessays : News and Reviews in Molecular, Cellular and Developmental Biology
|January 15, 2021
PubMed
Summary

Minocycline may treat affective and psychotic disorders by modulating microglia-mediated synaptic pruning in the adolescent brain. This antibiotic may also influence the social brain system, impacting behavior and personality.

Keywords:
drugs and controlledelectronic health recordsmental healthmicrogliaminocyclineschizophreniasubstances

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Pharmacology

Background:

  • Minocycline, a tetracycline antibiotic, shows therapeutic potential for affective and psychotic disorders.
  • This potential is linked to its effect on microglia-mediated frontocortical synaptic pruning (FSP) during adolescence.
  • Genetic factors, particularly risk alleles in the complement cascade, may influence susceptibility.

Purpose of the Study:

  • To review the therapeutic potential of minocycline for psychiatric disorders.
  • To explore the role of microglia-mediated FSP in CNS circuit refinement.
  • To investigate the broader impact of minocycline on the neurobiological systems underlying social behavior and personality.

Main Methods:

  • Literature review of recent studies on minocycline and psychiatric disorders.
  • Analysis of the proposed mechanism involving microglia-mediated FSP.
  • Discussion of the interplay between psychosocial stimuli and brain circuitry.

Main Results:

  • Minocycline may modulate microglia-mediated FSP, a critical process in adolescent brain development.
  • The drug's effects extend to a complex system where psychosocial stimuli shape the "social brain."
  • This system's dysregulation can lead to psychiatric morbidity independent of genetic variation.

Conclusions:

  • Minocycline's therapeutic potential may stem from its modulation of synaptic pruning and the social brain system.
  • Understanding this system offers insights into pathologies of social behavior and cognition.
  • This research provides potential mechanistic links between social experience and disease susceptibility.