PMID- 37132073 OWN - NLM STAT- MEDLINE DCOM- 20230516 LR - 20230525 IS - 1098-2396 (Electronic) IS - 0887-4476 (Linking) VI - 77 IP - 4 DP - 2023 Jul TI - Neonatal olfactory bulbectomy induces anxiety-related behavior and modifies dopaminergic receptor expression in post-pubertal rats. PG - e22272 LID - 10.1002/syn.22272 [doi] AB - Olfaction is a complex physiological process producing effects in the central nervous system (CNS) and implicated in emotional processes. Indeed, the olfactory bulbs (OB) send projections to various CNS regions including the nucleus accumbens (NAcc) and caudate-putamen (CPu). Both the NAcc and CPu receive important dopaminergic input. Emerging evidence suggests that dopamine (DA) is related to anxiety-related behaviors. Therefore, we aimed to investigate the consequences of neonatal olfactory bulbectomy (nOBX) to anxiety-related behavior as assayed in the elevated plus maze (EPM) as well as the expression of dopaminergic receptors (D1-like, D2-like, and D3) in the NAcc and CPu at pre- and post-pubertal ages in the rat. The results show that nOBX increased the number of entries in the open arm of the EPM post-pubertally, suggesting an anxiolytic-related effect. nOBX increased the D2-like binding in the NAcc shell and D3 binding in the NAcc core pre-pubertally. At post-pubertal ages, the D3 binding was reduced at the olfactory tubercle and islands of Calleja in nOBX rats. Alterations in the DA receptor expression may be one mechanism responsible for the observed behavioral modifications in nOBX rats. CI - (c) 2023 Wiley Periodicals LLC. FAU - Flores, Gonzalo AU - Flores G AUID- ORCID: 0000-0002-4100-2104 AD - Lab. Neuropsiquiatria, Instituto de Fisiologia, Benemerita Universidad Autonoma de Puebla, Puebla, Mexico. FAU - Gomez-Villalobos, Maria de Jesus AU - Gomez-Villalobos MJ AD - Lab. Fisiologia Cardiovascular, Instituto de Fisiologia, Benemerita Universidad Autonoma de Puebla, Puebla, Mexico. FAU - Iannitti, Tommaso AU - Iannitti T AD - Department of Medical Sciences, Section of Experimental Medicine, University of Ferrara, Ferrara, Italy. FAU - Morales-Medina, Julio Cesar AU - Morales-Medina JC AUID- ORCID: 0000-0002-8712-2400 AD - Centro de Investigacion en Reproduccion Animal, CINVESTAV-Universidad Autonoma de Tlaxcala, Tlaxcala, Mexico. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230502 PL - United States TA - Synapse JT - Synapse (New York, N.Y.) JID - 8806914 RN - VTD58H1Z2X (Dopamine) RN - 0 (Receptors, Dopamine) RN - 0 (Anti-Anxiety Agents) RN - 0 (Receptors, Dopamine D1) SB - IM MH - Rats MH - Animals MH - *Dopamine/metabolism MH - Smell MH - Receptors, Dopamine/metabolism MH - Nucleus Accumbens MH - Anxiety MH - *Anti-Anxiety Agents/pharmacology MH - Receptors, Dopamine D1/metabolism OTO - NOTNLM OT - anxiety OT - dopamine OT - elevated plus maze OT - islands of Calleja OT - neonatal bulbectomy OT - nucleus accumbens EDAT- 2023/05/03 06:42 MHDA- 2023/05/16 06:42 CRDT- 2023/05/03 02:25 PHST- 2023/04/14 00:00 [revised] PHST- 2022/11/11 00:00 [received] PHST- 2023/04/16 00:00 [accepted] PHST- 2023/05/16 06:42 [medline] PHST- 2023/05/03 06:42 [pubmed] PHST- 2023/05/03 02:25 [entrez] AID - 10.1002/syn.22272 [doi] PST - ppublish SO - Synapse. 2023 Jul;77(4):e22272. doi: 10.1002/syn.22272. Epub 2023 May 2.