The Journal of pharmacy and pharmacology, 61(7), 901-910 (2009-07-11)
alpha(2)-Adrenergic and mu-opioid receptors belong to the rhodopsin family of G-protein coupled receptors and mediate antinociceptive effects via similar signal transduction pathways. Previous studies have revealed direct functional interactions between both receptor systems including synergistic and additive effects. To evaluate
One subtype of imidazoline receptors (IR1) is similar to alpha 2-adrenoceptors (alpha 2 AR) based on their high affinity for clonidine and related imidazoline compounds. On the other hand, IR1 possess low affinity for norepinephrine (NE) and other catecholamines. Imidazoline
The binding properties of p-[125I]iodoclonidine [( 125I]PIC) to human platelet membranes and the functional characteristics of PIC are reported. [125I]PIC bound rapidly and reversibly to platelet membranes, with a first-order association rate constant (kon) at room temperature of 8.0 +/-
The Journal of pharmacology and experimental therapeutics, 267(3), 1493-1502 (1993-12-01)
Human platelets are shown to possess at least two high-affinity, imidazol(in)e-preferring binding sites that are pharmacologically distinct from alpha-2 adrenoceptors. These nonadrenergic sites were radiolabeled even in the presence of a 10 microM norepinephrine mask of alpha-2 adrenoceptors. Heterogeneity at
The Journal of pharmacology and experimental therapeutics, 264(1), 172-182 (1993-01-01)
Both the hypotension and the sedation elicited by centrally acting antihypertensive agents are traditionally attributed to activation of alpha 2 adrenergic receptors. Second-generation centrally acting agents such as moxonidine are less sedating but retain antihypertensive efficacy. A novel receptor which
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