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Akiko Katoh
Akiko Katoh
Departments of, Physiology, Otorhynolaryngology, Department of Physiology, Section on Neural Gene Expression, Department of Cellular Neurophysiology, Department of Anatomy and Neurobiology, Molecular Neuroendocrinology Research Group, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
Departments of, Physiology, Otorhynolaryngology, Department of Physiology, Section on Neural Gene Expression, Department of Cellular Neurophysiology, Department of Anatomy and Neurobiology, Molecular Neuroendocrinology Research Group, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
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Departments of, Physiology, Otorhynolaryngology, Department of Physiology, Section on Neural Gene Expression, Department of Cellular Neurophysiology, Department of Anatomy and Neurobiology, Molecular Neuroendocrinology Research Group, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
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Hiroaki Fujihara
Hiroaki Fujihara
Departments of, Physiology, Otorhynolaryngology, Department of Physiology, Section on Neural Gene Expression, Department of Cellular Neurophysiology, Department of Anatomy and Neurobiology, Molecular Neuroendocrinology Research Group, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
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Toyoaki Ohbuchi
Toyoaki Ohbuchi
Departments of, Physiology, Otorhynolaryngology, Department of Physiology, Section on Neural Gene Expression, Department of Cellular Neurophysiology, Department of Anatomy and Neurobiology, Molecular Neuroendocrinology Research Group, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
Departments of, Physiology, Otorhynolaryngology, Department of Physiology, Section on Neural Gene Expression, Department of Cellular Neurophysiology, Department of Anatomy and Neurobiology, Molecular Neuroendocrinology Research Group, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
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Departments of, Physiology, Otorhynolaryngology, Department of Physiology, Section on Neural Gene Expression, Department of Cellular Neurophysiology, Department of Anatomy and Neurobiology, Molecular Neuroendocrinology Research Group, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
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Tatsushi Onaka
Tatsushi Onaka
Departments of, Physiology, Otorhynolaryngology, Department of Physiology, Section on Neural Gene Expression, Department of Cellular Neurophysiology, Department of Anatomy and Neurobiology, Molecular Neuroendocrinology Research Group, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
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W Scott Young III
W Scott Young III
Departments of, Physiology, Otorhynolaryngology, Department of Physiology, Section on Neural Gene Expression, Department of Cellular Neurophysiology, Department of Anatomy and Neurobiology, Molecular Neuroendocrinology Research Group, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
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Govindan Dayanithi
Govindan Dayanithi
Departments of, Physiology, Otorhynolaryngology, Department of Physiology, Section on Neural Gene Expression, Department of Cellular Neurophysiology, Department of Anatomy and Neurobiology, Molecular Neuroendocrinology Research Group, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
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Yuka Yamasaki
Yuka Yamasaki
Departments of, Physiology, Otorhynolaryngology, Department of Physiology, Section on Neural Gene Expression, Department of Cellular Neurophysiology, Department of Anatomy and Neurobiology, Molecular Neuroendocrinology Research Group, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
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Mitsuhiro Kawata
Mitsuhiro Kawata
Departments of, Physiology, Otorhynolaryngology, Department of Physiology, Section on Neural Gene Expression, Department of Cellular Neurophysiology, Department of Anatomy and Neurobiology, Molecular Neuroendocrinology Research Group, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
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Hitoshi Suzuki
Hitoshi Suzuki
Departments of, Physiology, Otorhynolaryngology, Department of Physiology, Section on Neural Gene Expression, Department of Cellular Neurophysiology, Department of Anatomy and Neurobiology, Molecular Neuroendocrinology Research Group, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
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Hiroki Otsubo
Hiroki Otsubo
Departments of, Physiology, Otorhynolaryngology, Department of Physiology, Section on Neural Gene Expression, Department of Cellular Neurophysiology, Department of Anatomy and Neurobiology, Molecular Neuroendocrinology Research Group, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
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Hideaki Suzuki
Hideaki Suzuki
Departments of, Physiology, Otorhynolaryngology, Department of Physiology, Section on Neural Gene Expression, Department of Cellular Neurophysiology, Department of Anatomy and Neurobiology, Molecular Neuroendocrinology Research Group, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
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David Murphy
David Murphy
Departments of, Physiology, Otorhynolaryngology, Department of Physiology, Section on Neural Gene Expression, Department of Cellular Neurophysiology, Department of Anatomy and Neurobiology, Molecular Neuroendocrinology Research Group, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
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Yoichi Ueta
Yoichi Ueta
Departments of, Physiology, Otorhynolaryngology, Department of Physiology, Section on Neural Gene Expression, Department of Cellular Neurophysiology, Department of Anatomy and Neurobiology, Molecular Neuroendocrinology Research Group, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
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We have generated rats bearing an oxytocin (OXT)-enhanced cyan fluorescent protein (eCFP) fusion transgene designed from a murine construct previously shown to be faithfully expressed in transgenic mice. In situ hybridisation histochemistry revealed that the Oxt–eCfp fusion gene was expressed in the supraoptic nucleus (SON) and the paraventricular nucleus (PVN) in these rats. The fluorescence emanating from eCFP was observed only in the SON, the PVN, the internal layer of the median eminence and the posterior pituitary (PP). In in vitro preparations, freshly dissociated cells from the SON and axon terminals showed clear eCFP fluorescence. Immunohistochemistry for OXT and arginine vasopressin (AVP) revealed that the eCFP fluorescence co-localises with OXT immunofluorescence, but not with AVP immunofluorescence in the SON and the PVN. Although the expression levels of the Oxt–eCfp fusion gene in the SON and the PVN showed a wide range of variations in transgenic rats, eCFP fluorescence was markedly increased in the SON and the PVN, but decreased in the PP after chronic salt loading. The expression of the Oxt gene was significantly increased in the SON and the PVN after chronic salt loading in both non-transgenic and transgenic rats. Compared with wild-type animals, euhydrated and salt-loaded male and female transgenic rats showed no significant differences in plasma osmolality, sodium concentration and OXT and AVP levels, suggesting that the fusion gene expression did not disturb any physiological processes. These results suggest that our new transgenic rats are a valuable new tool to identify OXT-producing neurones and their terminals.
