Biomaterial Database

Effects of D-cycloserine and cycloleucine, ligands for the NMDA-associated strychnine-insensitive glycine site, on brain-stimulation reward and spontaneous locomotion. 1990

L J Herberg, and I C Rose

Institute of Neurology, National Hospital, London, England.

D-Cycloserine (DCS) binds with high affinity to the glycine site associated with the NMDA receptor in rat brain. Systemic injections of DCS have been reported to facilitate performance on learning tasks, possibly by promoting long-term changes at the NMDA receptor complex. In the present study, DCS failed to affect spontaneous locomotor activity or variable-interval self-stimulation response rate. Cycloleucine, a competitive antagonist of glycine at the glycine site, produced a brief depression of self-stimulation, but only after relatively large doses which were not antagonised by injection of DCS in the dose reported to be optimal for the facilitation of learning. Improvements in learning and retention reported after administration of DCS are therefore unlikely to be accounted for by nonassociative motivational, or performance, factors.

UI	MeSH Term	Description	Entries
D008024	Ligands	A molecule that binds to another molecule, used especially to refer to a small molecule that binds specifically to a larger molecule, e.g., an antigen binding to an antibody, a hormone or neurotransmitter binding to a receptor, or a substrate or allosteric effector binding to an enzyme. Ligands are also molecules that donate or accept a pair of electrons to form a coordinate covalent bond with the central metal atom of a coordination complex. (From Dorland, 27th ed)	Ligand
D008297	Male		Males
D009043	Motor Activity	Body movements of a human or an animal as a behavioral phenomenon.	Activities, Motor,Activity, Motor,Motor Activities
D001921	Brain	The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.	Encephalon
D003515	Cycloleucine	An amino acid formed by cyclization of leucine. It has cytostatic, immunosuppressive and antineoplastic activities.	1-Aminocyclopentanecarboxylic Acid,Aminocyclopentanecarboxylic Acid,NSC 1026,1 Aminocyclopentanecarboxylic Acid,Acid, 1-Aminocyclopentanecarboxylic,Acid, Aminocyclopentanecarboxylic
D003523	Cycloserine	Antibiotic substance produced by Streptomyces garyphalus.	R-4-Amino-3-isoxazolidinone,Seromycin
D004305	Dose-Response Relationship, Drug	The relationship between the dose of an administered drug and the response of the organism to the drug.	Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D012201	Reward	An object or a situation that can serve to reinforce a response, to satisfy a motive, or to afford pleasure.	Rewards
D012653	Self Stimulation	The act or process of inducing or increasing the level of arousal in oneself. It can be observed in various situations; for example, infants who are understimulated may explore their surroundings or babble to themselves.(https://dictionary.apa.org/self-stimulation accessed 12/30/2020)	ICSS Intracranial Self-Stimulation,Intracranial Self Stimulation,Self-Stimulation,Intracranial Self Stimulations,Self Stimulation, Intracranial,Self Stimulations,Self Stimulations, Intracranial,Self-Stimulations,Stimulation, Self,Stimulations, Self