Animal models of depression and anxiety: What do they tell us about human condition?

I D Neumann1, G Wegener, J R Homberg

  • 1Dept of Behavioural Neuroendocrinology, Faculty of Biology and Preclinical Medicine, University of Regensburg, Regensburg, Germany.

Insights

Investigating affective disorders requires appropriate animal models. This review highlights four validated rodent models for studying depression and anxiety, crucial for developing new treatments.

Area of Science:

  • Neurobiology
  • Psychiatry
  • Animal Models

Background:

  • Modern neurobiology is insufficient for understanding affective disorders.
  • Effective treatments require validated disease models.

Purpose of the Study:

  • To review four rodent models with high validity for affective disorder research.
  • To explore the utility of these models in investigating depression and anxiety.

Main Methods:

  • Review of Flinders Sensitive rat line (FSL).
  • Review of High Anxiety-like Behavior (HAB) rat line.
  • Review of serotonin transporter knockout (5-HTT(-/-)) rat and mouse lines.
  • Review of a predator scent-induced post-traumatic stress disorder (PTSD) model.

Main Results:

  • These models demonstrate good face, construct, and predictive validity.
  • The models are suitable for studying the etiology and pathophysiology of affective disorders.

Conclusions:

  • Validated rodent models are essential for advancing affective disorder research.
  • These specific models offer promising avenues for developing novel therapeutic strategies.

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