| First Author | Nagahara T | Year | 1995 |
| Journal | Anat Embryol (Berl) | Volume | 192 |
| Issue | 2 | Pages | 107-15 |
| PubMed ID | 7486007 | Mgi Jnum | J:28116 |
| Mgi Id | MGI:75747 | Doi | 10.1007/BF00185999 |
| Citation | Nagahara T, et al. (1995) Development of substance P immunoreactivity in the mouse vomeronasal organ. Anat Embryol (Berl) 192(2):107-15 |
| abstractText | We investigated the development of substance P immunoreactivity in mouse vomeronasal organs in embryos, juveniles, and adults. In all stages, substance P fibers were found in the receptor-free epithelial area, but never in the neuroepithelium. Substance P fibers were found sparsely in the lamina propria of 15-day-old embryos. Although buds of the vomeronasal glands in the cavernous tissue were observed in 17-day-old embryos, and gradually grew in size and numbers, the substance P fibers around them decreased after about the 13th day. Thus, substance P may be a trophic factor for the development of the vomeronasal glands in the cavernous tissue. We first recognized substance P fibers reaching the surface of the receptor-free epithelium in 13-day-old pups. In 21-day-old mice, substance P fibers were as well developed as in adult mice. Considering the development of the substance P fibers in the receptor-free epithelium and the cavernous tissue, they probably cause the vasodilation of the cavernous tissue via local axon reflexes. These structures may then act as a defense system, eliminating noxious stimulus substances sucked into the vomeronasal organ. |
