@article{oai:nagoya.repo.nii.ac.jp:00001815, author = {蛭薙, 観順 and HIRUNAGI, Kanjun and 岡村, 哲浩 and OKAMURA, Akihiro and 吉村, 崇 and YOSHIMURA, Takashi}, journal = {名古屋大学博物館報告}, month = {Dec}, note = {The median eminence consists of neuronal terminals, glia, specifically tanycytes and astrocytes, and portal blood vessels. Neuronal terminals of the median eminence release hypothalamic hormones that are carried via portal blood vessels to adenohypophysial cells and control the secretion of adenohypophysial hormones. We have examined the relationships of gonadotropin releasing hormone (GnRH) terminals to vasoactive intestinal peptide (VIP) terminals in the median emience of the pigeon, using light- and electron-microscopy. Conforcal laser scanning microscopy and immuno-electron microscopy revealed that GnRH neuronal terminals have direct contact with VIP terminals. No synapse-like structure is observed between the two terminals. This result suggests a functional role of VIP in the regulation of GnRH secretion from the median eminence. In this study, VIP and GnRH terminals frequently are observed to make physical contact with the processes of tanycyrtes. Some VIP terminals are encased by end-feet of tanycytes near the basal lamina of the portal vessels. Although functional significance of this correlation between neuronal terminals and tanycytes are not clear in this study, morphological plasticity of tanycytes may regulate the secretion of hypothalamic hormones into the portal vessels., 国立情報学研究所で電子化したコンテンツを使用している。}, pages = {1--7}, title = {ハト正中隆起外層の神経終末とタニサイトの電子顕微鏡による相関解析}, volume = {18}, year = {2002} }