نتایج جستجو برای: imidazoline derivatives
تعداد نتایج: 105684 فیلتر نتایج به سال:
The imidazoline system (a concept which is barely over decades old) consists in imidazoline receptors I, I2 and I3 and their active endogenous ligands, the most important of which is agmatine. Brain contains both I1 and 12 of imidazoline receptors. One of the most important functions of this system is modulation of different behaviour components, such as suicidal behaviour, stress, anxiety, foo...
Monoamine oxidase B (MAO-B) was recently identified as a member of the family of imidazoline binding proteins. To localize the imidazoline binding domain on MAO-B, we labeled the domain with the imidazoline photoaffinity adduct [I]2-(3azido-4-iodophenoxy)methylimidazoline in rat and human liver and visualized labeled peptides by autoradiography/sodium dodecyl sulfate-polyacrylamide gel electrop...
Monoamine oxidase B (MAO-B) was recently identified as a member of the family of imidazoline binding proteins. To localize the imidazoline binding domain on MAO-B, we labeled the domain with the imidazoline photoaffinity adduct [125I]2-(3-azido-4-iodophenoxy)methylimidazoline in rat and human liver and visualized labeled peptides by autoradiography/sodium dodecyl sulfate-polyacrylamide gel elec...
properties of agmatine and endogenous clonidine-displacing substance at imidazoline and alpha-2 adrenergic receptors. A. Imidazoline-guanidinium receptive site in renal proximal tubule: asymmetric distribution, regulation by cations and interaction with an endogenous clonidine displacing substance.idazoxan label different populations of imidazoline sites on rat kidney.
Synthesis of novel 5-methylidene-1,2,3,5-tetrahydro[2,1-b]-quinazoline derivatives 2-4 with potential biological activities mediated by alpha-adrenergic and/or imidazoline receptors was performed by reacting 2-chloro-4,5-dihydroimidazole (1) with the corresponding 2-aminoacetophenones. Compound 2, which incorporates an enamine moiety, underwent a 1,3-dipolar cycloaddition reaction with the appr...
Administration (3 to 100 microg/kg IV) of clonidine, rilmenidine, and an imidazoline derivative, 2-(2-chlorophenylamino)imidazoline, in pithed nonstimulated rabbits caused a dose-dependent increase in mean arterial pressure without affecting heart rate. Prazosin (0.1 mg/kg IV) almost abolished the pressor responses to 2-(2-chlorophenylamino)imidazoline, partially inhibited those induced by clon...
Imidazoline receptors are expressed widely in the CNS. In the present study, whole-cell patch-clamp recordings were made from medium spiny neurons in dorsal striatum slices from the rat brain, and the roles of I1-imidazoline receptors in the modulation of synaptic transmission were studied. Moxonidine, an I1-imidazoline receptor agonist, decreased the GABAA receptor-mediated IPSCs in a concentr...
Since 20 years the concept of specific imidazoline receptors has remained controversial. The problem with imidazoline receptors is mostly due to their functional similarity to alpha-adrenoceptors. In this work, a pharmacodynamic model of isolated rat jejunum longitudinal muscle strips constricted with acetylcholine (Ach) was applied to separate functional properties of the two types of receptor...
A series of phenoxy-substituted methylimidazoline derivatives were synthesized and used to define the ligand recognition properties of the imidazoline-binding domain (IBD) on monoamine oxidase (MAO)-B and its role in substrate processing. The rank order of potency for selected compounds in competitive binding studies with the imidazoline [(3)H]idazoxan was different from that in enzyme activity...
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