Sensory Ganglia
Mostrando 13-24 de 244 artigos, teses e dissertações.
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13. Synapse formation among developing sensory neurones from rat nodose ganglia grown in tissue culture.
Sensory neurones from new-born rat nodose ganglia were grown in tissue culture, either with or without the ganglionic satellite cells, in order to investigate influences of satellite cells on sensory neurone development. To learn more about the post-natal development of nodose ganglia in rats neuronal counts of the ganglion were made at three different devel
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14. Generation of sensory neurons is stimulated by leukemia inhibitory factor.
The processes that regulate the development of peripheral neurons from their precursors in the embryonic neural crest are essentially unknown. In this report, we show that leukemia inhibitory factor stimulates the generation of neurons in cultures of mouse neural crest. These neurons have the morphology of sensory neurons and contain neuropeptides found in m
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15. Substance P-immunoreactive peripheral branches of sensory neurons innervate guinea pig sympathetic neurons
The presence of substance P-immunoreactive (SPI) varicose nerve networks and nerve fiber bundles in guinea pig prevertebral sympathetic ganglia has been confirmed by fluorescence immunohistochemistry. No SPI neurons have been found in sympathetic ganglia, including lumbar paravertebral ganglia. Peroxidase-antiperoxidase immunocytochemical methods have shown
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16. Mechanoreceptor pathways from the distal colon to the autonomic nervous system in the guinea-pig.
Electrophysiological and histological techniques were used to trace sensory pathways for stretch mechanoreceptor fibres from the distal colon to dorsal root ganglia. Extracellular and intracellular recording techniques revealed sensory pathways for mechanoreceptors to the prevertebral sympathetic ganglia but no further centrally. Histological studies involvi
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17. Immunosuppressant FK506 promotes neurite outgrowth in cultures of PC12 cells and sensory ganglia.
The immunosuppressant drug FK506 acts by binding to receptor proteins, FK506-binding proteins (FKBPs), which in turn can bind to and regulate a Ca(2+)-dependent phosphatase, calcineurin, and a Ca2+ release channel, the ryanodine receptor. Based on our findings in regeneration models that levels of FKBPs during neural regeneration parallel those of growth-ass
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18. Sensitizing stimuli cause translocation of protein kinase C in Aplysia sensory neurons.
The defensive tail-withdrawal reflex of Aplysia californica, mediated by identified sensory neurons in pleural ganglia that form synapses on motor cells in pedal ganglia, can be sensitized by stimulating the animal with electric shock. The neurophysiological basis of this simple form of learning is thought to be the increased release of transmitter by the se
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19. Role of spinal afferents and calcitonin gene-related peptide in the postoperative gastric ileus in anesthetized rats.
OBJECTIVE: The object of this study was to investigate the mechanisms of postoperative gastric ileus in an experimental model of abdominal surgery in anesthetized rats. SUMMARY BACKGROUND DATA: Sensory neurons partly mediate postoperative gastric ileus. Among other neuropeptides, sensory neurons contain calcitonin gene-related peptide (CGRP) and release CGRP
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20. Studies on the Mechanism of Action of Nerve Growth Factor
In this study, explanted chick-embryo sensory ganglia were treated with nerve growth factor, and cellular concentrations of neurotubule protein were measured chemically by a colchicine-binding assay. Even after brief time periods, ganglia treated with growth factor were enriched in neurotubule protein, as compared with untreated (control) ganglia. Furthermor
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21. Oral inoculation with herpes simplex virus type 1 infects enteric neuron and mucosal nerve fibers within the gastrointestinal tract in mice.
Herpes simplex virus type 1 (HSV-1) is commonly encountered first during childhood as an oral infection. After this initial infection resolves, the virus remains in a latent form within innervating sensory ganglia for the life of the host. We have previously shown, using a murine model, that HSV-1 placed within the lumen of the esophagus gains access to nerv
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22. Immunocytochemical identification of substance P cells and their processes in rat sensory ganglia and their terminals in the spinal cord: Light microscopic studies
The indirect immunofluorescence method and the unlabeled primary antibody peroxidase antiperoxidase method are used to demonstrate the substance P (SP) plexus in the spinal cord and SP cells in the sensory ganglia of the rat. The normal untreated and the control side of the dorsal rhizotomized rat show vast SP immunoreactive plexuses in the substantia gelati
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23. Induction of tachykinin gene and peptide expression in guinea pig nodose primary afferent neurons by allergic airway inflammation.
Substance P (SP), neurokinin A (NKA), and calcitonin gene-related peptide (CGRP) have potent proinflammatory effects in the airways. They are released from sensory nerve endings originating in jugular and dorsal root ganglia. However, the major sensory supply to the airways originates from the nodose ganglion. In this study, we evaluated changes in neuropept
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24. Mechanism of Action of Nerve Growth Factor and Cyclic AMP on Neurite Outgrowth in Embryonic Chick Sensory Ganglia: Demonstration of Independent Pathways of Stimulation
The suggested role of adenosine 3′:5′-cyclic monophosphate as the “second messenger” in the neurite outgrowth from chick embryonic sensory ganglia mediated by nerve growth factor was examined. Although N6,O2-dibutyryl adenosine 3′:5′-cyclic monophosphate induces fiber outgrowth at concentrations of 1-5 mM, this response is morphologically distinc