{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,21]],"date-time":"2026-02-21T03:36:24Z","timestamp":1771644984638,"version":"3.50.1"},"reference-count":33,"publisher":"American Physiological Society","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["American Journal of Physiology-Gastrointestinal and Liver Physiology"],"published-print":{"date-parts":[[2011,3]]},"abstract":"<jats:p> Irritable bowel syndrome is characterized by colorectal hypersensitivity and contributed to by sensitized mechanosensitive primary afferents and recruitment of mechanoinsensitive (silent) afferents. Neurotrophic factors are well known to orchestrate dynamic changes in the properties of sensory neurons. Although pain modulation by proteins in the glial cell line-derived neurotrophic factor (GDNF) family has been documented in various pathophysiological states, their role in colorectal hypersensitivity remains unexplored. Therefore, we investigated the involvement of the GDNF family receptor \u03b1-3 (GFR\u03b13) signaling in visceral hypersensitivity by quantifying visceromotor responses (VMR) to colorectal distension before and after intracolonic treatment with 2,4,6-trinitrobenzene sulfonic acid (TNBS). Baseline responses to colorectal distension did not differ between C57BL\/6 and GFR\u03b13 knockout (KO) mice. Relative to intracolonic saline treatment, TNBS significantly enhanced the VMR to colorectal distension in C57BL\/6 mice 2, 7, 10, and 14 days posttreatment, whereas TNBS-induced visceral hypersensitivity was significantly suppressed in GFR\u03b13 KO mice. The proportion of GFR\u03b13 immunopositive thoracolumbar and lumbosacral colorectal dorsal root ganglion neurons was significantly elevated 2 days after TNBS treatment. In single fiber recordings, responses to circumferential stretch of colorectal afferent endings in C57BL\/6 mice were significantly increased (sensitized) after exposure to an inflammatory soup, whereas responses to stretch did not sensitize in GFR\u03b13 KO mice. These findings suggest that enhanced GFR\u03b13 signaling in visceral afferents may contribute to development of colorectal hypersensitivity. <\/jats:p>","DOI":"10.1152\/ajpgi.00456.2010","type":"journal-article","created":{"date-parts":[[2010,12,31]],"date-time":"2010-12-31T02:00:00Z","timestamp":1293760800000},"page":"G418-G424","source":"Crossref","is-referenced-by-count":25,"title":["Modulation of visceral hypersensitivity by glial cell line-derived neurotrophic factor family receptor \u03b1-3 in colorectal afferents"],"prefix":"10.1152","volume":"300","author":[{"given":"T.","family":"Tanaka","sequence":"first","affiliation":[{"name":"Center for Pain Research, Departments of Anesthesiology and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"Shinoda","sequence":"additional","affiliation":[{"name":"Center for Pain Research, Departments of Anesthesiology and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B.","family":"Feng","sequence":"additional","affiliation":[{"name":"Center for Pain Research, Departments of Anesthesiology and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K. 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