Tags

Type your tag names separated by a space and hit enter

Intranasal dopamine application increases dopaminergic activity in the neostriatum and nucleus accumbens and enhances motor activity in the open field.
Synapse. 2008 Mar; 62(3):176-84.S

Abstract

Dopamine (DA) plays an important role in a number of behavioral processes and neurological disorders. The intranasal administration of DA provides improved brain penetrability in comparison to systemic administration. We investigated the effects of intranasal administration of DA on the activity of dopaminergic neurons of the mesostriatal and mesolimbic systems and on motor activity. Rats previously implanted with guide-cannulae in the neostriatum (NS) and nucleus accumbens (NAc) were submitted to microdialysis procedure under urethane anesthesia. Vehicle or DA (0.03, 0.3, or 3.0 mg/kg) was administered bilaterally into the nostrils. In a separate study, animals received an intraperitoneal (i.p.) injection of vehicle or DA (0.03, 0.3, 3.0, or 30.0 mg/kg). Samples were collected every 10 min and analyzed for the content of DA and metabolites using high-performance liquid chromatography. For the open field study, rats were given intranasal vehicle or DA (0.03, 0.3, or 3.0 mg/kg) and placed into the field for 30 min. Motor activity (locomotion and rearing) and grooming were analyzed in blocks of 10 min using Ethovision. Intranasal DA (3.0 mg/kg) significantly increased DA levels in the NS and NAc immediately after administration. A comparable effect was obtained only after i.p. administration of 30 mg/kg DA. In the open field, the 3.0 mg/kg dose significantly decreased grooming behavior in the second 10 min interval and significantly increased locomotor activity in the third 10 min interval. The data indicate that intranasal administration of DA can influence dopaminergic functions and motor activity, and has a potential application in the therapy of diseases affecting the dopaminergic system.

Authors+Show Affiliations

Institute of Physiological Psychology and Center for Biological and Medical Research, University of Düsseldorf, Universitätsstrasse 1, Düsseldorf, Germany. desouza@uni-duesseldorf.deNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

18081176

Citation

de Souza Silva, M A., et al. "Intranasal Dopamine Application Increases Dopaminergic Activity in the Neostriatum and Nucleus Accumbens and Enhances Motor Activity in the Open Field." Synapse (New York, N.Y.), vol. 62, no. 3, 2008, pp. 176-84.
de Souza Silva MA, Topic B, Huston JP, et al. Intranasal dopamine application increases dopaminergic activity in the neostriatum and nucleus accumbens and enhances motor activity in the open field. Synapse. 2008;62(3):176-84.
de Souza Silva, M. A., Topic, B., Huston, J. P., & Mattern, C. (2008). Intranasal dopamine application increases dopaminergic activity in the neostriatum and nucleus accumbens and enhances motor activity in the open field. Synapse (New York, N.Y.), 62(3), 176-84.
de Souza Silva MA, et al. Intranasal Dopamine Application Increases Dopaminergic Activity in the Neostriatum and Nucleus Accumbens and Enhances Motor Activity in the Open Field. Synapse. 2008;62(3):176-84. PubMed PMID: 18081176.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Intranasal dopamine application increases dopaminergic activity in the neostriatum and nucleus accumbens and enhances motor activity in the open field. AU - de Souza Silva,M A, AU - Topic,B, AU - Huston,J P, AU - Mattern,C, PY - 2007/12/18/pubmed PY - 2008/4/12/medline PY - 2007/12/18/entrez SP - 176 EP - 84 JF - Synapse (New York, N.Y.) JO - Synapse VL - 62 IS - 3 N2 - Dopamine (DA) plays an important role in a number of behavioral processes and neurological disorders. The intranasal administration of DA provides improved brain penetrability in comparison to systemic administration. We investigated the effects of intranasal administration of DA on the activity of dopaminergic neurons of the mesostriatal and mesolimbic systems and on motor activity. Rats previously implanted with guide-cannulae in the neostriatum (NS) and nucleus accumbens (NAc) were submitted to microdialysis procedure under urethane anesthesia. Vehicle or DA (0.03, 0.3, or 3.0 mg/kg) was administered bilaterally into the nostrils. In a separate study, animals received an intraperitoneal (i.p.) injection of vehicle or DA (0.03, 0.3, 3.0, or 30.0 mg/kg). Samples were collected every 10 min and analyzed for the content of DA and metabolites using high-performance liquid chromatography. For the open field study, rats were given intranasal vehicle or DA (0.03, 0.3, or 3.0 mg/kg) and placed into the field for 30 min. Motor activity (locomotion and rearing) and grooming were analyzed in blocks of 10 min using Ethovision. Intranasal DA (3.0 mg/kg) significantly increased DA levels in the NS and NAc immediately after administration. A comparable effect was obtained only after i.p. administration of 30 mg/kg DA. In the open field, the 3.0 mg/kg dose significantly decreased grooming behavior in the second 10 min interval and significantly increased locomotor activity in the third 10 min interval. The data indicate that intranasal administration of DA can influence dopaminergic functions and motor activity, and has a potential application in the therapy of diseases affecting the dopaminergic system. SN - 0887-4476 UR - https://www.unboundmedicine.com/medline/citation/18081176/Intranasal_dopamine_application_increases_dopaminergic_activity_in_the_neostriatum_and_nucleus_accumbens_and_enhances_motor_activity_in_the_open_field_ DB - PRIME DP - Unbound Medicine ER -