PMID- 23738468 OWN - NLM STAT- MEDLINE DCOM- 20130812 LR - 20130606 IS - 1934-578X (Print) IS - 1555-9475 (Linking) VI - 8 IP - 4 DP - 2013 Apr TI - Effect on emotional behavior and stress by inhalation of the essential oil from Chamaecyparis obtusa. PG - 515-8 AB - Various effects have been reported in the literature for the essential oil from Chamaecyparis obtusa (EOCO), such as antibacterial and antifungal activity. In this study, we examined the effect of EOCO on emotional behavior and stress-induced biomarkers. Male ICR mice, aged 5 weeks at the start of each experiment, were individually housed in cages for 1 week. After placing each mouse in a glass container and exposing it to EOCO for 90 min, we then investigated the influence on emotional behavior using the elevated-plus maze (EPM) test, which is one of the evaluation methods for anxiolytic-like behavior. Significant anxiolytic-like effects were observed for the 7.0 mg/L air EOCO (P < 0.05). After the EPM test, mice were dissected and changes in the stress-induced biomarkers within the brain were investigated by examining the amounts of fast nerve growth factor receptor (NGFR) and activity regulated cytoskeletal-associated protein (Arc) gene expression, and brain-derived neurotrophic factor (BDNF) and galactokinase 1 (GLK1) protein expression. Significant increases were observed in the amount of NGFR after inhalation of 7.0 mg/L air EOCO (P < 0.05). These results indicate that EOCO has both anxiolytic-like and stress mitigation effects. FAU - Kasuya, Hikaru AU - Kasuya H AD - Faculty of Pharmaceutical Sciences, Toho University, Funabashi, Chiba 274-8510, Japan. FAU - Hata, Erika AU - Hata E FAU - Satou, Tadaaki AU - Satou T FAU - Yoshikawa, Masaki AU - Yoshikawa M FAU - Hayashi, Shinichiro AU - Hayashi S FAU - Masuo, Yoshinori AU - Masuo Y FAU - Koike, Kazuo AU - Koike K LA - eng PT - Journal Article PL - United States TA - Nat Prod Commun JT - Natural product communications JID - 101477873 RN - 0 (Anti-Anxiety Agents) RN - 0 (Oils, Volatile) RN - 0 (Receptors, Nerve Growth Factor) SB - IM MH - Administration, Inhalation MH - Animals MH - Anti-Anxiety Agents/*pharmacology MH - Chamaecyparis/*chemistry MH - Male MH - Maze Learning/drug effects MH - Mice MH - Mice, Inbred ICR MH - Oils, Volatile/*pharmacology MH - Receptors, Nerve Growth Factor/analysis MH - Stress, Psychological/*metabolism EDAT- 2013/06/07 06:00 MHDA- 2013/08/13 06:00 CRDT- 2013/06/07 06:00 PHST- 2013/06/07 06:00 [entrez] PHST- 2013/06/07 06:00 [pubmed] PHST- 2013/08/13 06:00 [medline] PST - ppublish SO - Nat Prod Commun. 2013 Apr;8(4):515-8.