2010 Fiscal Year Final Research Report
Functional interactions between hormone-sensor and osmo-sensor in the central regulation of body fluid osmolality
Project Area | Molecular interaction and modal shift of cellular sensors |
Project/Area Number |
18077006
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Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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Allocation Type | Single-year Grants |
Review Section |
Biological Sciences
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Research Institution | University of Occupational and Environmental Health, Japan |
Principal Investigator |
UETA Yoichi University of Occupational and Environmental Health, Japan, 医学部, 教授 (10232745)
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Co-Investigator(Kenkyū-buntansha) |
NAGATOMO Toshihisa 産業医科大学, 大学病院, 准教授 (50258604)
FUJIHARA Hiroaki 徳島大学, 大学院・ヘルスバイオサイエンス部, 助教 (10369051)
YOKOYAMA Toru 自治医科大学, 医学部, 助教 (80425321)
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Project Period (FY) |
2006 – 2010
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Keywords | セルセンサー / 浸透圧 / バゾプレッシン |
Research Abstract |
The purpose of the study was to examine the relationship between sensing the hormones (hormone-sensor) secreted by changes of osmolality and sensing the osmolality (osmo-sensor). In particular, we examined arginine vasopressin (AVP) system and drinking behavior. We obtained significant results as follow. (1) In in vitro brain slice preparation including the supraoptic nucleus (SON) that contain AVP neurons whole-cell patch-clamp recordings revealed effects of physiologically active substances on the excitatory and inhibitory synaptic currents in the SON. (2) Whole-cell patch-clamp recordings from an isolated single AVP-eGFP neuron revealed the electrophysiological properties. The diurnal changes of the expression of the several genes and electrophysiological properties were determined in the AVP-eGFP neurons in the suprachiasmatic nucleus that is known to be a circadian center. (3) Central effects of angiotensin II etc on drinking behavior were examined in rats.
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Research Products
(42 results)
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[Journal Article] Possible contribution of pannexin channel to ATP-induced currents in vitro in vasopressin neurons isolated from the rat supraoptic nucleus.2011
Author(s)
Ohbuchi, T., Yokoyama, T., Saito, T., Ohkubo, J., Suzuki, H., Ishikura, T., Katoh, A., Fujihara, H., Hashimoto, H., Suzuki, H., Ueta, Y.
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Journal Title
Peer Reviewed
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[Journal Article] Allylisothiocyanates and cinnamaldehyde potentiate miniature excitatory postsynaptic inputs in the sipraoptic nucleus in rats.2011
Author(s)
Yokoyama, T., Ohbuchi, T., Saito, T., Fujihara, H., Minami, K., Nagatomo, T., Uezono, Y., Ueta, Y.
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Journal Title
European Journal of Pharmacology 655(1-3)
Pages: 31-37
Peer Reviewed
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[Journal Article] Diurnal changes of arginine vasopressin-enhanced green fluorescent protein fusion transgene expression in the rat suprachiasmatic nucleus.2010
Author(s)
Maruyama, T., Ohbuchi, T., Fujihara, H., Shibata, M., Mori, K., Murphy, D., Dayanithi, G., Ueta, Y.
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Journal Title
Peptides 31(11)
Pages: 2089-2093
Peer Reviewed
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[Journal Article] Modulators of BK and SK channels alter electrical activity in vitro in single vasopressin neurons isolated from the rat supraoptic nucleus.2010
Author(s)
Ohbuchi, T., Yokoyama, T., Saito, T., Suzuki, H., Fujihara, H., Katoh, A., Otsubo, H., Ishikura, T., Ueta, Y.
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Journal Title
Neuroscience Letters 484(1)
Pages: 26-29
Peer Reviewed
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[Journal Article] Acid-sensing ion channels in rat hypothalamic vasopressin neurons of the supraoptic nucleus.2010
Author(s)
Ohbuchi, T., Sato, K., Suzuki, H., Okada, Y., Dayanithi, G., Murphy, D., Ueta, Y.
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Journal Title
Journal of Physiology (London) 588(12)
Pages: 2147-2162
Peer Reviewed
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[Journal Article] Induction of the arginine vasopressin-enhanced green fluorescent protein fusion transgene in the rat locus soerules.2010
Author(s)
Todoroki, M., Ueta, Y., Fujihara, H., Otsubo, H., Shibata, M., Hashimoto, H., Kobayashi, M., Sakamoto, H., Kawata, M., Dayanithi, G., Murphy, D., Hiro, H., Takahashi, K., Nagata, S.
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Journal Title
Stress 13(4)
Pages: 281-291
Peer Reviewed
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[Journal Article] Centrally administered relaxin-3 induces Fos expression in the osmosensitive areas in rat brain and facilitates water intake.2010
Author(s)
Otsubo, H., Onaka, T., Suzuki, H., Katoh, A., Ohbuchi, T., Todoroki, M., Kobayashi, M., Fujihara, H., Yokoyama, T., Matsumoto, T., Ueta, Y.
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Journal Title
Peptides 31(6)
Pages: 1124-1130
Peer Reviewed
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[Journal Article] TRPV1 gene deficiency attenuates miniature EPSCs potentiation induced by mannitol and angiotensin II in supraoptic magnocellular neurons.2010
Author(s)
Yokoyama, T., Saito, T., Ohbuchi, T., Hashimoto, H., Suzuki, H., Otsubo, H., Fujihara, H., Nagatomo, T., Ueta, Y.
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Journal Title
Journal of Neuroscience 30(3)
Pages: 876-884
Peer Reviewed
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[Journal Article] Centrally administered ghrelin potently inhibits water intake induced by angiotensin II and hypovolemia in rats.2010
Author(s)
Hashimoto, H., Otsubo, H., Fujihara, H., Suzuki, H., Ohbuchi, T., Yokoyama, T., Takei, Y., Ueta, Y.
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Journal Title
The Journal of Physiological Sciences 60(1)
Pages: 19-25
Peer Reviewed
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[Journal Article] Robust upregulation of nuclear red fluorescent-tagged Fos marks neuronal activation in green fluorescent vasopressin neurons after osmotic stimulation in a double transgenic rat.2009
Author(s)
Fujihara, H., Ueta, Y., Suzuki, H., Katoh, A., Ohbuchi, T., Otsubo, H., Dayanithi, G., Murphy, D.
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Journal Title
Endocrinology 150(12)
Pages: 5633-5638
Peer Reviewed
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[Journal Article] Ghrelin potentiates miniature excitatory postsynaptic currents in rat supraoptic magnocellular neurons.2009
Author(s)
Yokoyama, T., Saito, T., Ohbuchi, T., Suzuki, H., Otsubo, H., Okamoto, T., Fujihara, H., Nagatomo, T., Ueta, Y.
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Journal Title
Journal of Neuroendocrinology(Cover article of the issue) 21(11)
Pages: 183-190
Peer Reviewed
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[Journal Article] Exaggerated response of a vasopressin-enhanced green fluorescent protein transgene to nociceptive stimulation in the rat.2009
Author(s)
Suzuki, H., Kawasaki, M., Ohnishi, H., Otsubo, H., Ohbuchi, T., Katoh, A., Hashimoto, H., Yokoyama, T., Fujihara, H., Dayanithi, G., Murphy, D., Nakamura, T., Ueta, Y.
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Journal Title
Journal of Neuroscience 29(42)
Pages: 13182-13189
Peer Reviewed
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[Journal Article] Response of arginine vasopressin-enhanced green fluorescent protein fusion gene in the hypothalamus of adjuvant-induced arthritic rats.2009
Author(s)
Suzuki, H., Onaka, T., Kasai, M., Kawasaki, M., Ohnishi, H., Otsubo, H., Saito, T., Hashimoto, H., Yokoyama, T., Fujihara, H., Dayanithi, G., Murphy, D., Nakamura, T., Ueta, Y.
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Journal Title
Journal of Neuroendocrinology 21(3)
Pages: 183-190
Peer Reviewed
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[Journal Article] Brain-derived neurotrophic factor inhibits spontaneous inhibitory postsynaptic currents in the rat supraoptic nucleus.2009
Author(s)
Ohbuchi, T., Yokoyama, T., Saito, T., Hashimoto, H., Suzuki, H., Otsubo, H., Fujihara, H., Suzuki, H., Ueta, Y.
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Journal Title
Brain Research 1258(3)
Pages: 34-42
Peer Reviewed
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[Journal Article] Chronic osmotic stimuli increase salusin-β-like immunoreactivity in the rat hypothalamo-neurohypophyseal system : possible involvement of salusin-β on [Ca^<2+>]_i increase and neurohypophyseal hormone release from the axon terminals.2008
Author(s)
Saito, T., Dayanithi, G., Saito, J., Onaka, T., Urabe, T., Watanabe, TX., Hashimoto, H., Yokoyama, T., Fujihara, H., Yokota, A., Nishizawa, S., Hirata, Y., Ueta, Y.
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Journal Title
Journal of Neuroendocrinology 20(2)
Pages: 207-219
Peer Reviewed
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[Journal Article] Induction of the galanin-like peptide gene expression in the posterior pituitary gland after acute osmotic stimulus in rats.2007
Author(s)
Kawasaki, M., Saito, J., Hashimoto, H., Suzuki, H., Otsubo, H., Fujihara, H., Ohnishi, H., Nakamura, T., Ueta, Y.
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Journal Title
Neuroscience Letters 419(2)
Pages: 125-130
Peer Reviewed
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[Journal Article] Centrally and peripherally administered ghrelin potently inhibits water intake in rats.2007
Author(s)
Hashimoto, H., Fujihara, H., Kawasaki, M., Saito, T., Shibata, M., Otsubo, H., Takei, Y., Ueta, Y.
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Journal Title
Endocrinology 148(4)
Pages: 1638-1647
Peer Reviewed
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[Journal Article] Physiological studies of stress responses in the hypothalamus of vasopressin-enhanced green fluorescent protein transgenic rat.2007
Author(s)
Shibata, M., Fujjihara, H., Suzuki, H., Ozawa, H., Kawata, M., Dayanithi, G., Murphy, D., Ueta, Y.
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Journal Title
Journal of Neuroendocrinology 19(4)
Pages: 285-292
Peer Reviewed
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[Journal Article] Exaggerated response of arginine vasopressin-enhanced green fluorescent protein fusion gene to salt loading without disturbance of body fluid homeostasis in rats.2006
Author(s)
Fujio, T., Fujihara, H., Shibata, M., Yamada, S., Onaka, T., Tanaka, K., Morita, H., Dayanithi, G., Kawata, M., Murphy, D., Ueta, Y.
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Journal Title
Journal of Neuroendocrinology(Cover article of the issue) 18(10)
Pages: 776-785
Peer Reviewed
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[Presentation] The expression of the arginine vasopressin-enhanced green fluorescent protein fusion gene in the transgenic rat brain.2007
Author(s)
Ueta, Y., Matsui, A., Fujihara, H., Sakamoto, F., Kawata, M., Dayanithi, G., Murphy, D.
Organizer
VIIth World Congress on Neurohypophysial Hormones
Place of Presentation
Regensburg, Germany
Year and Date
20070918-20070922
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