PMID- 17613938 OWN - NLM STAT- MEDLINE DCOM- 20071002 LR - 20131121 IS - 1025-3890 (Print) IS - 1025-3890 (Linking) VI - 10 IP - 3 DP - 2007 Aug TI - Modulation of stress consequences by hippocampal monoaminergic, glutamatergic and nitrergic neurotransmitter systems. PG - 227-49 AB - Several findings relate the hippocampal formation to the behavioural consequences of stress. It contains a high concentration of corticoid receptors and undergoes plastic modifications, including decreased neurogenesis and cellular remodelling, following stress exposure. Various major neurotransmitter systems in the hippocampus are involved in these effects. Serotonin (5-HT) seems to exert a protective role in the hippocampus and attenuates the behavioural consequences of stress by activating 5-HT1A receptors in this structure. These effects may mediate the therapeutic actions of several antidepressants. The role of noradrenaline is less clear and possibly depends on the specific hippocampal region (dorsal vs. ventral). The deleterious modifications induced in the hippocampus by stress might involve a decrease in neurotrophic factors such as brain derived neurotrophic factor (BDNF) following glutamate N-methyl-D-aspartate (NMDA) receptor activation. In addition to glutamate, nitric oxide (NO) could also be related to these effects. Systemic and intra-hippocampal administration of nitric oxide synthase (NOS) inhibitors attenuates stress-induced behavioural consequences. The challenge for the future will be to integrate results related to these different neurotransmitter systems in a unifying theory about the role of the hippocampus in mood regulation, depressive disorder and antidepressant effects. FAU - Joca, Samia Regiane Lourenco AU - Joca SR AD - Department of Pharmacology, Faculty of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, SP, Brazil. FAU - Ferreira, Frederico Rogerio AU - Ferreira FR FAU - Guimaraes, Francisco Silveira AU - Guimaraes FS LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review PL - England TA - Stress JT - Stress (Amsterdam, Netherlands) JID - 9617529 RN - 0 (Antidepressive Agents) RN - 0 (Biogenic Monoamines) RN - 31C4KY9ESH (Nitric Oxide) RN - 333DO1RDJY (Serotonin) RN - 3KX376GY7L (Glutamic Acid) RN - VTD58H1Z2X (Dopamine) RN - X4W3ENH1CV (Norepinephrine) SB - IM MH - Adaptation, Psychological MH - Affect MH - Animals MH - Antidepressive Agents/pharmacology/therapeutic use MH - Biogenic Monoamines/*metabolism MH - Depression/drug therapy/metabolism MH - Dopamine/metabolism MH - Glutamic Acid/*metabolism MH - Hippocampus/drug effects/*metabolism/pathology MH - Humans MH - Neurons/drug effects/*metabolism/pathology MH - Nitrergic Neurons/drug effects/*metabolism/pathology MH - Nitric Oxide/*metabolism MH - Norepinephrine/metabolism MH - Serotonin/metabolism MH - Stress, Psychological/drug therapy/*metabolism/pathology RF - 342 EDAT- 2007/07/07 09:00 MHDA- 2007/10/03 09:00 CRDT- 2007/07/07 09:00 PHST- 2007/07/07 09:00 [pubmed] PHST- 2007/10/03 09:00 [medline] PHST- 2007/07/07 09:00 [entrez] AID - 780350706 [pii] AID - 10.1080/10253890701223130 [doi] PST - ppublish SO - Stress. 2007 Aug;10(3):227-49. doi: 10.1080/10253890701223130.