Biomaterial Database

Selective labelling of high affinity 5-hydroxytryptamine1 receptors in whole rat brain. 1984

S Yoshikawa, and R Ishitani

In synaptic membranes prepared from whole rat brain, cinanserin produced a relatively shallow inhibition curve of [3H] 5-HT binding with Hill slope of 0.68, as compared with that observed in the [3H]spiperone binding (Hill slope = 0.99). Furthermore, nonlinear regression analysis demonstrated that the former inhibition curve is best fitted by a two-site model. Regional and Scatchard analyses both clearly revealed that, in rat brain, at least two populations of binding sites were labelled by [3H]5-HT; however, high affinity binding sites (K(D) = 1.90 nM, Bmax = 0.188 pmoles/mg protein) could apparently be differentiated from the others by the action of 5 nM cinanserin.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D011919	Rats, Inbred Strains	Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations or by parent x offspring matings carried out with certain restrictions. This also includes animals with a long history of closed colony breeding.	August Rats,Inbred Rat Strains,Inbred Strain of Rat,Inbred Strain of Rats,Inbred Strains of Rats,Rat, Inbred Strain,August Rat,Inbred Rat Strain,Inbred Strain Rat,Inbred Strain Rats,Inbred Strains Rat,Inbred Strains Rats,Rat Inbred Strain,Rat Inbred Strains,Rat Strain, Inbred,Rat Strains, Inbred,Rat, August,Rat, Inbred Strains,Rats Inbred Strain,Rats Inbred Strains,Rats, August,Rats, Inbred Strain,Strain Rat, Inbred,Strain Rats, Inbred,Strain, Inbred Rat,Strains, Inbred Rat
D011985	Receptors, Serotonin	Cell-surface proteins that bind SEROTONIN and trigger intracellular changes which influence the behavior of cells. Several types of serotonin receptors have been recognized which differ in their pharmacology, molecular biology, and mode of action.	5-HT Receptor,5-HT Receptors,5-Hydroxytryptamine Receptor,5-Hydroxytryptamine Receptors,Receptors, Tryptamine,Serotonin Receptor,Serotonin Receptors,Tryptamine Receptor,Tryptamine Receptors,Receptors, 5-HT,Receptors, 5-Hydroxytryptamine,5 HT Receptor,5 HT Receptors,5 Hydroxytryptamine Receptor,5 Hydroxytryptamine Receptors,Receptor, 5-HT,Receptor, 5-Hydroxytryptamine,Receptor, Serotonin,Receptor, Tryptamine,Receptors, 5 HT,Receptors, 5 Hydroxytryptamine
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
D001931	Brain Mapping	Imaging techniques used to colocalize sites of brain functions or physiological activity with brain structures.	Brain Electrical Activity Mapping,Functional Cerebral Localization,Topographic Brain Mapping,Brain Mapping, Topographic,Functional Cerebral Localizations,Mapping, Brain,Mapping, Topographic Brain
D002928	Cinanserin	A serotonin antagonist with limited antihistaminic, anticholinergic, and immunosuppressive activity.	Cinanserin Hydrochloride,Cinanserin Monohydrochloride,SQ-10,643,SQ-16,167,Hydrochloride, Cinanserin,Monohydrochloride, Cinanserin,SQ 10,643,SQ 16,167,SQ10,643,SQ16,167
D002934	Cinnamates	Derivatives of cinnamic acid (the structural formula: phenyl-HC	Cinnamate
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
D013134	Spiperone	A spiro butyrophenone analog similar to HALOPERIDOL and other related compounds. It has been recommended in the treatment of SCHIZOPHRENIA.	Spiroperidol,Spiroperone
D013570	Synaptic Membranes	Cell membranes associated with synapses. Both presynaptic and postsynaptic membranes are included along with their integral or tightly associated specializations for the release or reception of transmitters.	Membrane, Synaptic,Membranes, Synaptic,Synaptic Membrane