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Neurogenesis Using P19 Embryonal Carcinoma Cells
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Neurogenesis and antidepressant action.

Seon-Cheol Park1

  • 1Department of Psychiatry, Inje University Haeundae Paik Hospital, 875, Haeun-daero, Haeundae-gu, Busan, 48108, Republic of Korea. cogito-ergo-sum@hanmail.net.

Cell and Tissue Research
|June 6, 2019
PubMed
Summary

The neurogenesis theory offers a new framework for understanding major depressive disorder (MDD) by linking hippocampal neurogenesis to stress resilience and antidepressant response.

Keywords:
AntidepressantBiological indicatorHippocampusMajor depressive disorder (MDD)Neurogenesis

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Area of Science:

  • Neuroscience
  • Psychiatry

Background:

  • Major depressive disorder (MDD) pathogenesis is not fully understood.
  • The monoamine theory has limitations.
  • The neurogenesis theory, focusing on adult hippocampal neurogenesis, offers a complementary framework.

Purpose of the Study:

  • To propose a theoretical framework for MDD pathogenesis centered on neurogenesis.
  • To explore the role of hippocampal neurogenesis in MDD etiology and recovery.
  • To investigate the potential of neurogenesis as a biomarker for stress resilience and antidepressant response.

Main Methods:

  • Theoretical framework development.
  • Literature review and synthesis.
  • Hypothesizing the link between antidepressant action and neurogenesis.

Main Results:

  • Hippocampal neurogenesis is functionally linked to HPA axis regulation, inflammation, and cognitive functions relevant to MDD.
  • Chronic antidepressant administration may promote neurogenesis, leading to MDD remission.
  • Suppressed neurogenesis correlates with impaired antidepressant response, not necessarily depressive behaviors.

Conclusions:

  • Hippocampal neurogenesis is crucial for cognitive functions, HPA axis control, and stress coping.
  • Enhancing neurogenesis may alleviate depressive symptoms and improve stress resilience.
  • Hippocampal neurogenesis shows promise as a biomarker for MDD treatment response.