AI Article Synopsis
- The study examines social defeat (SD) in rats, a relevant model for investigating stress effects on behavior and physiology.
- A systematic review of literature from 2002 to 2013 identifies key biomarkers associated with SD, particularly focusing on brain-derived neurotrophic factor (BDNF) and its relationship with stress.
- The SD protocol is highlighted as an important tool for understanding stress responses, addiction, depression, anxiety, and individual differences in stress vulnerability and resilience.
Article Abstract
Introduction: Social defeat (SD) in rats, which results from male intraspecific confrontations, is ethologically relevant and useful to understand stress effects on physiology and behavior.
Methods: A systematic review of studies about biomarkers induced by the SD protocol and published from 2002 to 2013 was carried out in the electronic databases PubMed, Web of Knowledge and ScienceDirect. The search terms were: social defeat, rat, neurotrophins, neuroinflammatory markers, and transcriptional factors.
Results: Classical and recently discovered biomarkers were found to be relevant in stress-induced states. Findings were summarized in accordance to the length of exposure to stress: single, repeated, intermittent and continuous SD. This review found that the brain-derived neurotrophic factor (BDNF) is a distinct marker of stress adaptation. Along with glucocorticoids and catecholamines, BDNF seems to be important in understanding stress physiology.
Conclusion: The SD model provides a relevant tool to study stress response features, development of addictive behaviors, clinic depression and anxiety, as well as individual differences in vulnerability and resilience to stress.
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| http://dx.doi.org/10.1590/2237-6089-2014-0034 | DOI Listing |
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