PMID- 24826915 OWN - NLM STAT- MEDLINE DCOM- 20151020 LR - 20211021 IS - 1559-1182 (Electronic) IS - 0893-7648 (Linking) VI - 51 IP - 1 DP - 2015 Feb TI - REM sleep deprivation reverses neurochemical and other depressive-like alterations induced by olfactory bulbectomy. PG - 349-60 LID - 10.1007/s12035-014-8721-x [doi] AB - There is compelling evidence that sleep deprivation (SD) is an effective strategy in promoting antidepressant effects in humans, whereas few studies were performed in relevant animal models of depression. Acute administration of antidepressants in humans and rats generates a quite similar effect, i.e., suppression of rapid eye movement (REM) sleep. Then, we decided to investigate the neurochemical alterations generated by a protocol of rapid eye movement sleep deprivation (REMSD) in the notably known animal model of depression induced by the bilateral olfactory bulbectomy (OBX). REMSD triggered antidepressant mechanisms such as the increment of brain-derived neurotrophic factor (BDNF) levels, within the substantia nigra pars compacta (SNpc), which were strongly correlated to the swimming time (r = 0.83; P < 0.0001) and hippocampal serotonin (5-HT) content (r = 0.66; P = 0.004). Moreover, there was a strong correlation between swimming time and hippocampal 5-HT levels (r = 0.70; P = 0.003), strengthen the notion of an antidepressant effect associated to REMSD in the OBX rats. In addition, REMSD robustly attenuated the hippocampal 5-HT deficiency produced by the OBX procedure. Regarding the rebound (REB) period, we observed the occurrence of a sustained antidepressant effect, indicated mainly by the swimming and climbing times which could be explained by the maintenance of the increased nigral BDNF expression. Hence, hippocampal 5-HT levels remained enhanced in the OBX group after this period. We suggested that the neurochemical complexity inflicted by the OBX model, counteracted by REMSD, is directly correlated to the nigral BDNF expression and hippocampal 5-HT levels. The present findings provide new information regarding the antidepressant mechanisms triggered by REMSD. FAU - Maturana, Maira J AU - Maturana MJ AD - Laboratorio de Neurofisiologia, Departamento de Fisiologia, Universidade Federal do Parana, Curitiba, PR, Brazil. FAU - Pudell, Claudia AU - Pudell C FAU - Targa, Adriano D S AU - Targa AD FAU - Rodrigues, Lais S AU - Rodrigues LS FAU - Noseda, Ana Carolina D AU - Noseda AC FAU - Fortes, Mariana H AU - Fortes MH FAU - Dos Santos, Patricia AU - Dos Santos P FAU - Da Cunha, Claudio AU - Da Cunha C FAU - Zanata, Silvio M AU - Zanata SM FAU - Ferraz, Anete C AU - Ferraz AC FAU - Lima, Marcelo M S AU - Lima MM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140515 PL - United States TA - Mol Neurobiol JT - Molecular neurobiology JID - 8900963 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Neurotransmitter Agents) SB - IM MH - Animals MH - Behavior, Animal MH - Brain-Derived Neurotrophic Factor/metabolism MH - Depression/*complications/pathology/*physiopathology MH - Disease Models, Animal MH - Hippocampus/metabolism/pathology/physiopathology MH - Male MH - Metabolome MH - Motor Activity/physiology MH - Neurotransmitter Agents/*metabolism MH - Olfactory Bulb/physiopathology/*surgery MH - Rats, Wistar MH - Sleep Deprivation/*complications/pathology/*physiopathology MH - Sleep, REM/*physiology MH - Substantia Nigra/pathology/physiopathology MH - Swimming EDAT- 2014/05/16 06:00 MHDA- 2015/10/21 06:00 CRDT- 2014/05/16 06:00 PHST- 2014/02/05 00:00 [received] PHST- 2014/04/17 00:00 [accepted] PHST- 2014/05/16 06:00 [entrez] PHST- 2014/05/16 06:00 [pubmed] PHST- 2015/10/21 06:00 [medline] AID - 10.1007/s12035-014-8721-x [doi] PST - ppublish SO - Mol Neurobiol. 2015 Feb;51(1):349-60. doi: 10.1007/s12035-014-8721-x. Epub 2014 May 15.