dc.contributor.author | Lione, Lisa | |
dc.contributor.author | Nutt, D.J. | |
dc.contributor.author | Hudson, A.L. | |
dc.date.accessioned | 2014-03-04T16:29:03Z | |
dc.date.available | 2014-03-04T16:29:03Z | |
dc.date.issued | 1996-05 | |
dc.identifier.citation | Lione , L , Nutt , D J & Hudson , A L 1996 , ' [ 3 H]2-(2-Benzofuranyl)-2-imidazoline : a new selective high affinity radioligand for the study of rabbit brain imidazoline I 2 receptors ' , European Journal of Pharmacology , vol. 304 , no. 1-3 , pp. 221-229 . https://doi.org/10.1016/0014-2999(96)00131-8 | |
dc.identifier.issn | 0014-2999 | |
dc.identifier.uri | http://hdl.handle.net/2299/13008 | |
dc.description.abstract | This is the first study characterising the binding of the new imidazoline I2 receptor selective radioligand [3H]2-(2-benzofuranyl)-2-imidazoline (2-BFI) to rabbit brain membranes. [3H]2-BFI binding was found to be saturable and of high affinity identifying two binding sites with KD1 = 0.27 nM, Bmax = 111.2 fmol mg−1 protein and KD2 = 8.97 nM, Bmax = 268 fmol mg−1 protein. Specific binding represented greater than 90% of total binding. Kinetic studies revealed that the binding was rapid and reversible and also showed [3H]2-BFI interacted with these two sites or two affinity states. In competition binding studies against [3H]2-BFI (0.3-lnM) idazoxan, 2-BFI, cirazoline, guanabenz, naphazoline, amiloride and BU224 (2-(4,5-dihydroimidaz-2-yl-quinoline) displaced with high affinity. In contrast the α2-adrenoceptor antagonists efaroxan and rauwolscine, the I1 site selective drug moxonidine, the monoamine oxidase-A inhibitor clorgyline and the proposed endogenous imidazoline receptor ligand, agmatine, were weak at displacing [3H]2-BFI binding. These findings are consistent with [3H]2-BFI recognising imidazoline receptors of the I2 subtype in rabbit brain | en |
dc.language.iso | eng | |
dc.relation.ispartof | European Journal of Pharmacology | |
dc.title | [3H]2-(2-Benzofuranyl)-2-imidazoline : a new selective high affinity radioligand for the study of rabbit brain imidazoline I2 receptors | en |
dc.contributor.institution | School of Life and Medical Sciences | |
dc.contributor.institution | TRP Ion channels | |
dc.contributor.institution | Centre for Research in Mechanisms of Disease and Drug Discovery | |
dc.contributor.institution | Department of Clinical, Pharmaceutical and Biological Science | |
dc.contributor.institution | Basic and Clinical Science Unit | |
dc.contributor.institution | Centre for Health Services and Clinical Research | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1016/0014-2999(96)00131-8 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |