نتایج جستجو برای: cholinergic neuron
تعداد نتایج: 82506 فیلتر نتایج به سال:
UNLABELLED Neuromodulation of olfactory circuits by acetylcholine (ACh) plays an important role in odor discrimination and learning. Early processing of chemosensory signals occurs in two functionally and anatomically distinct regions, the main and accessory olfactory bulbs (MOB and AOB), which receive extensive cholinergic input from the basal forebrain. Here, we explore the regulation of AOB ...
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...
By a combination of the indirect immunofluorescence technique with acetylcholinesterase (acetylcholine acetylhydrolase, EC 3.1.1.7) staining, it was shown that vasoactive intestinal polypeptide (VIP) is present in cholinergic (acetylcholinesterase-rich) neurons involved in control of secretion and vasodilation in exocrine glands of cat. The submandibular salivary gland was used as a functional ...
Choline acetyltransferase (ChAT), the enzyme that synthesizes the neurotransmitter acetylcholine (ACh), is thought to be present in kinetic excess in cholinergic neurons. The rate-limiting factor in ACh production is the provision of choline to ChAT. Cholinergic neurons are relatively unique in their expression of the choline transporter 1 (CHT1), which exhibits high-affinity for choline and ca...
Neuromodulation can change not only the mean firing rate of a neuron, but also its pattern of firing . Therefore, a reliable neural coding scheme, whether a rate coding or a spike time based coding, must be robust in a dynamic neuromodulatory environment . The common observation that cholinergic modulation leads to a reduction in spike frequency adaptation implies a modification of spike timing...
The giant cholinergic neuron R2 of Aplysia was cultured in combination with identified neurons L11 and R15 and members of a group of left upper quadrant (LUQ) cells L2 to L6 from the abdominal ganglion. All of these neurons receive cholinergic input from other cells in vivo, but not from R2. In vitro, R2 reliably formed unidirectional chemical connections with these cells. Single action potenti...
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