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Urocortins (Ucns) injected peripherally decrease food intake and gastric emptying through peripheral CRF 2 receptors in rodents. However, whether Ucns influence circulating levels of the orexigenic and prokinetic hormone, ghrelin has been little investigated. We examined plasma levels of ghrelin and blood glucose after intravenous (iv) injection of Ucn 1, the CRF receptor subtype involved...
The orexigenic effect of urocortins (Ucns), namely Ucn 1, Ucn 2 and Ucn 3 through activation of corticotropin-releasing factor (CRF) receptors, has been well characterized after injection into the brain but not in the periphery. We examined the role of CRF receptor subtype 2 (CRF 2 ) in the regulation of food intake using intraperitoneal (ip) injection of Ucns and the selective CRF 2 ...
CRF injected intraperitoneally (i.p.) stimulates colonic motor function and induces Fos expression in colonic myenteric neurons. We investigated central and spinal Fos expression and changes in colonic motility in response to i.p. injection of CRF and urocortin. Ovine CRF 9-33 that is devoid of intrinsic activity at the CRF receptors, was used as control peptide. Myoelectrical...
Urocortin II (Ucn II) is a new member of the corticotropin-releasing factor (CRF) family that binds selectively to the CRF subtype 2 receptor (CRF 2 ). CRF or urocortin injected intravenously (iv) induced hypotension. We investigated the influence of iv human Ucn II (hUcn II) on basal mean blood pressure (MAP) and on the sympathetic mediated hypertensive response to TRH analog, RX-77368 injected...
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