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Brain-Derived Neurotrophic Factor (Bdnf) Changes in Rodent Models of Schizophrenia Induced by Ketamine: A Systematic Review Publisher



Motamedimanesh A1 ; Asanjan MF2 ; Fallah H1 ; Gharibian S1 ; Taghavi A1 ; Poode ZH1 ; Akhondzadeh S3 ; Vaseghi S1
Authors
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Authors Affiliations
  1. 1. Cognitive Neuroscience Lab, Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran
  2. 2. Middle East Technical University, Ankara, Turkiye
  3. 3. Psychiatric Research Center, Roozbeh Psychiatric Hospital, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran

Source: Naunyn-Schmiedeberg's Archives of Pharmacology Published:2025


Abstract

Schizophrenia is a severe neuropsychiatric disorder ranking among the top ten global disability causes. In rodents, sub-chronic or chronic ketamine treatment is used for the induction of schizophrenia. Ketamine affects the function of brain-derived neurotrophic factor (BDNF), the most important neurotrophin involved in the pathophysiology of different neuropsychiatric disorders. The present systematic review aimed to investigate BDNF changes in rodent studies used ketamine-induced schizophrenia. PubMed electronic database was searched and 44 articles were found. After removal of unrelated articles, 17 articles were selected. The results showed a wide range of inconsistent changes in BDNF levels. We found that sub-chronic and chronic ketamine treatment in rats decreased BDNF or had no effect. Sub-chronic and chronic ketamine treatment in mice only decreased BDNF. However, increased BDNF was commonly observed following acute ketamine treatment. These results showed the possible role of species and the duration of treatment. Also, sex can also be involved in BDNF changes because one study showed inconsistent BDNF changes in male and female rats. In conclusion, we found that ketamine's effects may depend on factors such as duration of administration, sex, and species. Therefore, the wide range of BDNF changes may be related to high variability in methods. Because of this variability, there is currently no standardized method for using ketamine as a rodent model for schizophrenia. Further research is needed to establish a standardized pharmacological model of schizophrenia using ketamine treatment. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2025.
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