Abstract:
BACKGROUND:Better treatments for schizophrenia are urgently needed. The therapeutic use of the nitric oxide (NO)-donor sodium nitroprusside (SNP) in patients with schizophrenia has shown promising results. The role of NO in schizophrenia is still unclear, and NO modulation is unexplored in ketamine (KET) animal models to date. In the present study, we compared the behavioral effects of pre- and post-treatment with SNP, glyceryl trinitrate (GTN), and methylene blue (MB) in the acute KET animal model of schizophrenia. The present study was designed to test whether acute SNP, GTN, and MB treatment taken after (therapeutic effect) or before (preventive effect) a single KET injection would influence the behavior of rats in the sucrose preference test, object recognition task and open field. RESULTS:The results showed that KET induced cognitive deficits and hyperlocomotion. Long- term memory improvement was seen with the therapeutic GTN and SNP treatment, but not with the preventive one. MB pretreatment resulted in long-term memory recovery. GTN pre-, but not post-treatment, tended to increase vertical and horizontal activity in the KET model. Therapeutic and preventive SNP treatment consistently decreased KET-induced hyperlocomotion. CONCLUSION:NO donors - especially SNP - are promising new pharmacological candidates in the treatment of schizophrenia. In addition, we showed that the potential impact of NO-related compounds on KET-induced behavioral changes may depend on the temporal window of drug administration.
journal_name
BMC Neuroscijournal_title
BMC neuroscienceauthors
Kandratavicius L,Balista PA,Wolf DC,Abrao J,Evora PR,Rodrigues AJ,Chaves C,Maia-de-Oliveira JP,Leite JP,Dursun SM,Baker GB,Guimaraes FS,Hallak JEdoi
10.1186/s12868-015-0149-3subject
Has Abstractpub_date
2015-03-07 00:00:00pages
9issn
1471-2202pii
10.1186/s12868-015-0149-3journal_volume
16pub_type
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