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Excessive release of inflammatory/pain mediators from peripheral sensory afferents renders nerve endings hyper-responsive, causing central sensitization and chronic pain. Herein, the basal release of proinflammatory calcitonin gene-related peptide (CGRP) was shown to increase the excitability of trigeminal sensory neurons in brainstem slices via CGRP1(More)
The effects of stress (restraint plus tail shock) on hippocampus-dependent trace eyeblink conditioning and hippocampal excitability were examined in C57BL/6 male mice. The results indicate that the stressor significantly increased the concentration of circulating corticosterone, the amount and rate of learning relative to nonstressed conditioned mice, and(More)
Two subtypes of the corticotropin-releasing factor (CRF) receptor, CRF(1) and CRF(2), differentially modulate brain functions such as anxiety and memory. To facilitate the analysis of their differential involvement, we developed a CRF(1)-specific peptidic agonist by synthesis of chimeric peptides derived from human/rat CRF, ovine CRF (oCRF), and sauvagine(More)
Histamine is a biogenic amine that plays an essential role in controlling many physiological functions, both in the central nervous system (CNS) and the peripheral nervous system (PNS). Most of these physiological effects are mediated through interactions with four histamine receptor subtypes, all of which are members of the larger family of rhodopsin-like(More)
The authors report a nucleotide substitution (c.1216A>G) in SPG4 (spastin) causing hereditary spastic paraplegia. This apparent missense mutation in the ATPase domain confers aberrant, in-frame splicing and results in destabilization of mutated transcript. Mutated protein is deficient in microtubule-severing activity but, unlike neighboring mutations, shows(More)
The histamine H(3) receptor was characterized in the 1980s as an autoreceptor regulating histamine release in brain. Since then, selective drugs have been designed, many of them displaying a high potency in vivo, and used in many studies to delineate the implications of cerebral histaminergic systems in physiological functions such as arousal or cognitive(More)
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