9 matokeo
Agmatine is a polycationic amine synthesized from L-arginine by arginine decarboxylase in brain and several tissues. It binds to N-methyl-D-aspartate (NMDA) subtype of glutamatergic, alpha(2)-adrenergic and imidazoline (I) receptors. The present study was designed to investigate effect of agmatine
Agmatine is an amine formed by the decarboxylation of l-arginine by the enzyme arginine decarboxylase. The fact that exogenous agmatine modulates morphine analgesia and dependence raises the question of whether the biosynthesis of endogenous agmatine is regulated during chronic pain. As a first step
The role of the N-Methyl-D-Aspartate receptor (NMDAr) as a contributor to maladaptive neuroplasticity underlying the maintenance of chronic pain is well established. Agmatine, an NMDA receptor antagonist, has been shown to reverse tactile hypersensitivity in rodent models of neuropathic pain while
Antagonists of glutamate receptors of the N-methyl-d-aspartate subclass (NMDAR) or inhibitors of nitric oxide synthase (NOS) prevent nervous system plasticity. Inflammatory and neuropathic pain rely on plasticity, presenting a clinical opportunity for the use of NMDAR antagonists and NOS inhibitors
Agmatine is an endogenous decarboxylation product of arginine that has been previously shown to antagonize the N-methyl-d-aspartate (NMDA) receptor and inhibit nitric-oxide synthase. Many neuropharmacological studies have shown that exogenous administration of agmatine prevents or reverses
Recent evidence suggests that agmatine, which is an intermediate in polyamine biosynthesis, might be an important neurotransmitter in mammals. Agmatine is synthesized in the brain, stored in synaptic vesicles in regionally selective neurons, accumulated by uptake, released by depolarization, and
The central nervous system (CNS) is the most injury-prone part of the mammalian body. Any acute or chronic, central or peripheral neurological disorder is related to abnormal biochemical and electrical signals in the brain cells. As a result, ion channels and receptors that are abundant in the
Sickle cell disease (SCD) is the most common hemoglobinopathy in the US, affecting approximately 100,000 individuals in the US and millions worldwide. Pain is the hallmark of SCD, and a subset of patients experience pain virtually all of the time. Of interest, the arginine metabolome is associated
1. Agmatine, the proposed endogenous ligand for imidazoline receptors, has been shown to attenuate tolerance to morphine-induced antinociception (Kolesnikov el al., 1996). The main aim of this study was to assess if idazoxan, an alpha2-adrenoceptor antagonist that also interacts with imidazoline