Cytisine, a Partial Agonist of α4β2 Nicotinic Acetylcholine Receptors, Reduced Unpredictable Chronic Mild Stress-Induced Depression-Like Behaviors
Biomolecules & Therapeutics
;
: 291-297, 2016.
Article
in English
| WPRIM
| ID: wpr-51944
ABSTRACT
Cytisine (CYT), a partial agonist of α4β2-nicotinic receptors, has been used for antidepressant efficacy in several tests. Nicotinic receptors have been shown to be closely associated with depression. However, little is known about the effects of CYT on the depression. In the present study, a mouse model of depression, the unpredictable chronic mild stress (UCMS), was used to evaluate the activities of CYT. UCMS caused significant depression-like behaviors, as shown by the decrease of total distances in open field test, and the prolonged duration of immobility in tail suspension test and forced swimming test. Treatment with CYT for two weeks notably relieved the depression-like behaviors in the UCMS mice. Next, proteins related to depressive disorder in the brain region of hippocampus and amygdala were analyzed to elucidate the underlying mechanisms of CYT. CYT significantly reversed the decreases of 5-HT1A, BDNF, and mTOR levels in the hippocampus and amygdala. These results imply that CYT may act as a potential anti-depressant in the animals under chronic stress.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Brain
/
Receptors, Nicotinic
/
Brain-Derived Neurotrophic Factor
/
Hindlimb Suspension
/
Depression
/
Depressive Disorder
/
Physical Exertion
/
Hippocampus
/
Amygdala
Type of study:
Prognostic study
Limits:
Animals
Language:
English
Journal:
Biomolecules & Therapeutics
Year:
2016
Type:
Article
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