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Substance P and calcitonin gene-related peptide (CGRP) in gastrointestinal inflammation.
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TLDR
The hypothesis that Substance P was the mediator of neurogenic inflammation was strengthened when it was shown that substance P caused vasodilatation and plasma extravasation and that this could be abolished by substance P antagonists and antibodies to substance P.Citations
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Tachykinins in the gut. Part II. Roles in neural excitation, secretion and inflammation.
TL;DR: There is increasing evidence that tachykinins participate in the hypersecretory, vascular and immunological disturbances associated with infection and inflammatory bowel disease, and it would seem conceivable thatTachykinin antagonists could be exploited as antidiarrheal, antiinflammatory and antinociceptive drugs.
Journal ArticleDOI
Postoperative ileus is maintained by intestinal immune infiltrates that activate inhibitory neural pathways in mice.
Wouter J. de Jonge,Rene M. van den Wijngaard,Merel-Linde Ter Beek,Roel J. Bennink,Guido N. J. Tytgat,Ruud M. Buijs,Pieter H. Reitsma,Sander J. H. van Deventer,Guy E. Boeckxstaens +8 more
TL;DR: In this paper, the authors studied the pathophysiology of postoperative gastroparesis after abdominal surgery in a murine model by determining gastric emptying after manipulation of the small intestine.
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Increased substance P responses in dorsal root ganglia and intestinal macrophages during Clostridium difficile toxin A enteritis in rats
Ignazio Castagliuolo,Andrew C. Keates,Bosheng Qiu,Ciaran P. Kelly,S Nikulasson,Susan E. Leeman,Charalabos Pothoulakis +6 more
TL;DR: It is reported that injection of toxin A into rat ileum causes a rapid increase in SP content in lumbar dorsal root ganglia (DRG) and mucosal scrapings 30-60 min after toxin A administration, suggesting an autocrine/paracrine regulation of cytokine secretion by SP from LPMs during intestinal inflammation.
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Substance P (neurokinin-1) and neurokinin A (neurokinin-2) receptor gene and protein expression in the healthy and inflamed human intestine.
TL;DR: It is demonstrated that in the normal human intestine NK-1R and NK-2R are expressed in multiple cell types, which are endowed with different physiological functions; in addition, they demonstrate that both NK- 1R andNK- 2R are up-regulated in patients with Crohn's disease and ulcerative colitis.
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Effects of chemical sympathectomy and sensory nerve ablation on experimental colitis in the rat
TL;DR: Capsaicin-sensitive nerves play a protective role in experimental colitis and sympathetic nerves contribute to the development of colitis, and the beneficial effects of lidocaine appear to be due to its action on enteric nerves.
References
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Journal ArticleDOI
Production of a novel neuropeptide encoded by the calcitonin gene via tissue-specific RNA processing
Michael G. Rosenfeld,Jean-Jacques Mermod,Susan G. Amara,Larry W. Swanson,Paul E. Sawchenko,Jean Rivier,Wylie Vale,Ronald M. Evans +7 more
TL;DR: The approach described here permits the application of recombinant DNA technology to analyses of complex neurobiological systems in the absence of prior structural or biological information.
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Alternative RNA processing in calcitonin gene expression generates mRNAs encoding different polypeptide products
TL;DR: A model in which developmental regulation of RNA processing is used to increase the diversity of neuroendocrine gene expression is proposed.
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Calcitonin gene-related peptide is a potent vasodilator
TL;DR: It is suggested that local extravascular release of CGRP may be involved in the physiological control of blood flow and that circulating C GRP may contribute to hyperaemia in certain pathological conditions.
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Induction of c-fos-like protein in spinal cord neurons following sensory stimulation.
TL;DR: Physiological stimulation of rat primary sensory neurons causes the expression of c-fos-protein-like immunoreactivity in nuclei of postsynaptic neurons of the dorsal horn of the spinal cord, suggesting that synaptic transmission may induce rapid changes in gene expression in certain post Synaptic neurons.