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Excitatory and inhibitory synaptic dysfunction in mania: an emerging hypothesis from animal model studies
Yeunkum Lee1,2, Yinhua Zhang1,2, Shinhyun Kim1,2
1Department of Neuroscience, College of Medicine, Korea University, Seoul, South Korea.
Experimental & Molecular Medicine
|April 10, 2018
Summary
Bipolar disorder (BD) research in rodent models reveals synaptic dysfunction in mania. Mood stabilizers may correct these excitatory/inhibitory (E/I) imbalances, offering therapeutic insights.
Area of Science:
- Neuroscience
- Psychiatry
- Synaptic Plasticity
Background:
- Bipolar disorder (BD) is a mood disorder marked by depressive and manic episodes.
- Manic episodes severely impair daily functioning due to extreme mood and energy shifts.
- Rodent models offer insights into mania's pathogenic mechanisms.
Purpose of the Study:
- To review rodent models of mania focusing on synaptic dysfunction.
- To explore the role of excitatory/inhibitory (E/I) synaptic imbalances in mania.
- To summarize how mood stabilizers affect E/I synapses and therapeutic efficacy.
Main Methods:
- Review of recent studies on rodent manic models.
- Analysis of E/I synaptic development and function in these models.
- Examination of molecular and functional changes induced by mood stabilizers.
Main Results:
- Rodent models exhibit impairments in E/I synaptic development and function relevant to mania.
- Mood stabilizers show molecular and functional changes at E/I synapses.
- These synaptic changes may underlie the therapeutic effects of mood stabilizers.
Conclusions:
- Neuronal E/I synaptic dysfunction is a key hypothesis in mania pathogenesis.
- Rodent models are valuable tools for studying mania and E/I synaptic function.
- Further research can bridge basic science findings to clinical treatments for bipolar disorder.
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