PMID- 10936689 OWN - NLM STAT- MEDLINE DCOM- 20000921 LR - 20220408 IS - 0304-3940 (Print) IS - 0304-3940 (Linking) VI - 290 IP - 2 DP - 2000 Aug 25 TI - Acute stress decreases serotonin transporter mRNA in the raphe pontis but not in other raphe nuclei of the rat. PG - 109-12 AB - In addition to elevated corticosterone levels, stress produces structural changes and neuronal damage especially in the hippocampus. In this line it has been shown, that in rats single or repeated immobilisation markedly reduces brain-derived neurotrophic factor (BDNF) mRNA levels in the hippocampal formation. Since this neurotrophin also controls the efficacy of serotonergic neurotransmission, the aim of the current study was to investigate the effect of acute immobilization stress on the expression of serotonin transporter (SERT) mRNA in the raphe nuclei as a parameter of serotonergic innervation. We have examined the expression of SERT mRNA and of BDNF mRNA in rats upon acute immobilisation by quantitative in situ hybridisation with a (35)S-labelled oligonucleotide probe. Elevated corticosterone levels in stressed animals confirmed as internal controls the effect of stress under our conditions. Acute stress led to a significant decrease of BDNF mRNA in the hippocampus and of SERT mRNA in the raphe pontis, but not in other raphe nuclei investigated. These data provide evidence for fast interactions between neurotrophins, corticosterone and serotonergic neurotransmission under stress conditions. FAU - Vollmayr, B AU - Vollmayr B AD - Department of Biochemistry, Central Institute for Mental Health, 68159, Mannheim, Germany. FAU - Keck, S AU - Keck S FAU - Henn, F A AU - Henn FA FAU - Schloss, P AU - Schloss P LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Ireland TA - Neurosci Lett JT - Neuroscience letters JID - 7600130 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Carrier Proteins) RN - 0 (Membrane Glycoproteins) RN - 0 (Membrane Transport Proteins) RN - 0 (Nerve Tissue Proteins) RN - 0 (RNA, Messenger) RN - 0 (Serotonin Plasma Membrane Transport Proteins) RN - 0 (Slc6a4 protein, rat) RN - W980KJ009P (Corticosterone) SB - IM MH - Animals MH - Brain-Derived Neurotrophic Factor/genetics MH - Carrier Proteins/*genetics MH - Corticosterone/blood MH - Male MH - Membrane Glycoproteins/*genetics MH - *Membrane Transport Proteins MH - *Nerve Tissue Proteins MH - Neurons/metabolism/pathology MH - RNA, Messenger/metabolism MH - Raphe Nuclei/*metabolism/pathology/physiopathology MH - Rats MH - Rats, Sprague-Dawley MH - Serotonin Plasma Membrane Transport Proteins MH - Stress, Physiological/pathology/*physiopathology EDAT- 2000/08/11 11:00 MHDA- 2000/09/23 11:01 CRDT- 2000/08/11 11:00 PHST- 2000/08/11 11:00 [pubmed] PHST- 2000/09/23 11:01 [medline] PHST- 2000/08/11 11:00 [entrez] AID - S0304-3940(00)01346-X [pii] AID - 10.1016/s0304-3940(00)01346-x [doi] PST - ppublish SO - Neurosci Lett. 2000 Aug 25;290(2):109-12. doi: 10.1016/s0304-3940(00)01346-x.