Abstract：
:Posttraumatic stress disorder (PTSD) is a debilitating condition highly comorbid with depression. The endocannabinoid (eCB) system and brain-derived neurotrophic factor (BDNF) are suggestively involved in both disorders. We examined whether cannabinoids can prevent the long-term depressive-like symptoms induced by exposure to the shock and situational reminders (SRs) model of PTSD. The CB1/2 receptor agonist WIN55,212-2 (0.5 mg/kg; i.p.), the fatty acid hydrolase (FAAH) inhibitor URB597 (0.3 mg/kg, i.p.) or vehicle were administered 2 h after severe shock. Cannabinoids prevented the shock/SRs-induced alterations in social recognition memory, locomotion, passive coping, anxiety-like behavior, anhedonia, fear retrieval, fear extinction and startle response as well as the decrease in BDNF levels in the hippocampus and prefrontal cortex (PFC). Furthermore, significant correlations were found between depressive-like behaviors and BDNF levels in the brain. The findings suggest that cannabinoids may prevent both depressive- and PTSD-like symptoms following exposure to severe stress and that alterations in BDNF levels in the brains' fear circuit are involved in these effects.
journal_name
Prog Neuropsychopharmacol Biol Psychiatryauthors
Burstein O,Shoshan N,Doron R,Akirav Idoi
10.1016/j.pnpbp.2018.01.026subject
Has Abstractpub_date
2018-06-08 00:00:00pages
129-139issue
Pt Aeissn
0278-5846issn
1878-4216pii
S0278-5846(17)31000-Xjournal_volume
84pub_type
杂志文章abstract：:1. Azapirones, selective partial agonists at the 5-HT1A receptor subtype, induce hypothermia and corticotropin (ACTH)/cortisol release as specific functional correlates of central 5-HT1A receptor activation. 2. Compared to controls, hypothermic and ACTH/cortisol responses to the azapirone ipsapirone are attenuated in ...
journal_title：Progress in neuro-psychopharmacology & biological psychiatry
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