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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Science / Faculty of Science >
Peer-reviewed Journal Articles, etc >
Extrahypothalamic Projection of Immunoreactive Vasotocin Fibers in the Brain of the Toad, Bufo japonicus
| Title: | Extrahypothalamic Projection of Immunoreactive Vasotocin Fibers in the Brain of the Toad, Bufo japonicus |
| Authors: | Jokura, Yoji Browse this author | | Urano, Akihisa Browse this author |
| Issue Date: | 1987 |
| Publisher: | Zoological Society of Japan |
| Journal Title: | Zoological Science |
| Volume: | 4 |
| Start Page: | 675 |
| End Page: | 681 |
| Abstract: | Extrahypothalamic projection of vasotocin (AVT) fibers in the brain of the toad (Bufo japonicus) was examined immunohistochemically by the avidin-biotin-peroxidase complex (ABC) method. Immunoreactive AVT perikarya are localized in the nucleus preopticus pars magnocellularis. The AVT neurons send their immunoreactive varicose fibers to many discrete brain regions, such as the limbic cortex, the thalamus, the optic tectum and the lower brain stem, in addition to the neurohypophysis. A dense network of AVT fibers was found in the septal nuclei and the anterior part of the preoptic nucleus. AVT fibers which run postero-dorsad project to the nucleus posterocentralis thalami, the nucleus posterodorsalis tegmenti mesencephali, and the nucleus isthmi. Meanwhile, AVT fibers which run through in the dorsal infundibular region and then the mesencephalic reticular formation are distributed in the medulla oblongata. These findings suggest that AVT acts as a neuromodulator or a local hormone in the toad brain. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/43959 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 浦野 明央
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