Decreased hippocampal neurogenesis and post-stroke depression

Area of Science:

• Neuroscience
• Psychiatry
• Cell Biology

Background:

• Post-stroke depression (PSD) affects one-third of stroke survivors, impairing functional recovery.
• Decreased hippocampal neurogenesis is increasingly recognized as a key factor in PSD pathophysiology.
• Understanding the mechanisms linking neurogenesis and PSD is crucial for effective treatment.

Purpose of the Study:

• To review the evidence connecting impaired hippocampal neurogenesis to PSD.
• To explore the molecular and cellular mechanisms underlying this connection.
• To examine therapeutic strategies aimed at promoting neurogenesis for PSD.

Main Methods:

• Literature review of studies on hippocampal neurogenesis and PSD.
• Analysis of molecular pathways including HPA axis, neuroinflammation, and neurotransmitters.
• Evaluation of current and emerging neurogenesis-promoting therapies.

Main Results:

• Impaired hippocampal neurogenesis is strongly associated with PSD onset and severity.
• Dysregulation of the HPA axis, neuroinflammation, and altered signaling pathways contribute to reduced neurogenesis in PSD.
• Pharmacological, neuroregulatory, and lifestyle interventions show potential for enhancing neurogenesis and alleviating PSD.

Conclusions:

• Impaired hippocampal neurogenesis is a central mechanism in PSD.
• Targeting neurogenesis offers a promising therapeutic avenue for PSD management.
• Further research is needed to translate these findings into clinical practice.