Augmentation of vagal tone increases ventricular fibrillation threshold (VFT) under nonischemic and ischemic conditions and protects against spontaneous ventricular fibrillation during experimental myocardial infarction. The purpose of this study was to identify the anatomic pathways responsible for this cholinergically-mediated enhanced electrical stability and to determine whether or not thes...

Cholinergic urticaria is a relatively common condition defined by itching, redness and whealing induced exercise passive warming. In turn, acquired idiopathic generalized anhidrosis rare disorder of unknown pathogenesis, characterized an impairment in total body sweating despite exposure to heat or exercise. We report two cases this extremely association cholinergic hypohidrosis, briefly review...

Cholinergic modulation of central circuits is associated with active sensation, attention, and learning, yet the neural circuits and temporal dynamics underlying cholinergic effects on sensory processing remain unclear. Understanding the effects of cholinergic modulation on particular circuits is complicated by the widespread projections of cholinergic neurons to telencephalic structures that t...

OBJECTIVES The cholinergic system plays an important role in learning and memory. This study investigated the effects of curcumin (turmeric extract) and the cholinergic system and their interaction on memory retention of passive avoidance learning in adult male Wistar rats. MATERIALS AND METHODS At first, an injection cannula was implanted in right ventricles of the animals. One week after th...

Nervous system maps are of critical importance for understanding how nervous systems develop and function. We systematically map here all cholinergic neuron types in the male and hermaphrodite C. elegans nervous system. We find that acetylcholine (ACh) is the most broadly used neurotransmitter and we analyze its usage relative to other neurotransmitters within the context of the entire connecto...

23 24 Nervous system maps are of critical importance for understanding how nervous 25 systemsdevelop and function. We systematically map here all cholinergic neuron types in the 26 male and hermaphrodite C.elegans nervous system. We find that acetylcholine is the most 27 broadly used neurotransmitter and we analyze its usage relative to other neurotransmitters 28 within the context of the entir...

The basal forebrain cholinergic system has been implicated in the reorganization of adult cortical sensory and motor representations under many, but not all, experimental conditions. It is still not fully understood which types of plasticity require the cholinergic system and which do not. In this study, we examine the hypothesis that the basal forebrain cholinergic system is required for elici...

Electrocortical and behavioral arousal are separate phenomena subserved by different neural substrata operating in parallel. A comprehensive theory of 'activation' must take into account the relationships between the electrical and behavioral activating systems. In pathological or experimentally induced states paradoxes, resolvable by a theory positing functional interaction between these syste...