title: [3H]-imipramine binding sites in fawn-hooded rats.
abstract: The existence of high-affinity [3H]-imipramine recognition sites was demonstrated in membranes prepared from the cerebral cortex, hypothalamus and platelets obtained from fawn-hooded rats. The Bmax and Kd values for [3H]-imipramine binding to cerebral cortical membranes were virtually identical to those obtained with cortical membrane preparations of Sprague-Dawley rats. An NBR strain of rats, genetically related to fawn-hooded rats, was found to have significantly higher levels of [3H]-imipramine binding sites in cerebral cortical membranes when compared to fawn-hooded and Sprague-Dawley rats. All four strains of rats examined possessed extremely high densities of [3H]-imipramine binding sites in a purified platelet membrane fraction. These results do not support the finding of others that the cerebral cortex and platelets of fawn-hooded rats are virtually devoid of [3H]-imipramine binding sites.
mesh_terms: D000818:Animals; D001792:Blood Platelets / Q000378:metabolism; D002352:Carrier Proteins; D002462:Cell Membrane / Q000378:metabolism; D002540:Cerebral Cortex / Q000378:metabolism*; D003433:Crosses, Genetic; D007031:Hypothalamus / Q000378:metabolism*; D007099:Imipramine / Q000378:metabolism*; D007700:Kinetics; D051381:Rats; D011919:Rats, Inbred Strains; D011955:Receptors, Drug; D017981:Receptors, Neurotransmitter / Q000378:metabolism*; D013045:Species Specificity; D014316:Tritium
chemical_list: D002352:Carrier Proteins; D011955:Receptors, Drug; D017981:Receptors, Neurotransmitter; C027775:imipramine receptor; D014316:Tritium; D007099:Imipramine