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MRI study on the autonomic center in the hypothalamus of the rat brain

Research Project

Project/Area Number 15591317
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Radiation science
Research InstitutionNational Institute of Neuroscience, NCNP

Principal Investigator

OGINO Takashi  NCNP, Biochemistry & Cell Biology, Ph.D., 診断研究部, 室長 (50185526)

Co-Investigator(Kenkyū-buntansha) NAKAMURA Shun  NCNP, Biochemistry & Cell Biology, Head, 診断研究部, 部長 (00134619)
Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2004: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2003: ¥2,200,000 (Direct Cost: ¥2,200,000)
KeywordsMRI / hypertonic NaCl / hypertonic D-mannitol / blood-brain-barrier / osmotic receptor / Fos immunohistochemistry / 脳機能 / ラット / 浸透圧受容器
Research Abstract

To develop the technique of Mn2+ contrasted MRI in hypothalamic imaging, images obtained using T1-weighted MRI were compared with Fos expression, which is known to increase after activation of voltage-dependent Ca2+ channels. Intravenous infusion of MnC12 elicited a rapid increase in the T1-weighted MRI signal intensity in the vessels and ventricles, but not in the brain parenchyma, suggesting that Mn2+ did not diffuse freely across the blood-brain barrier. When the blood-brain barrier was broken by right intracarotid arterial injection of 25 % D-mannitol, an increased signal intensity was seen in the right brain. Intracarotid arterial injection of hypertonic NaCl elicited rapid and striking increases in signal intensity in the paraventricular hypothalamic nucleus, supraoptic nucleus, and preoptic area, which are thought to be involved in central osmotic regulation. These observations were consistent with the Fos expression results. These results indicate that Mn2+ contrasted MRI is a useful technique for investigating the autonomic center in the hypothalamus.

Report

(3 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • Research Products

    (10 results)

All 2005 2004 Other

All Journal Article (9 results) Publications (1 results)

  • [Journal Article] In vitro 1H NMR spectroscopy shows an increase in N-acetyl-aspartylglutamate and glutamine content in the hippocampus...2005

    • Author(s)
      Shirayama, Y.
    • Journal Title

      Journal of Neurochemistry 92

      Pages: 1317-1326

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Sequence of forebrain activation induced by intraventricular injection of hypertonic NaCl 【triple bond】2004

    • Author(s)
      Morita, H.
    • Journal Title

      Autonomic Neuroscience : Basic and Clinical 113

      Pages: 43-54

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] In vivo 31P NMR spectroscopy shows an increase in glycerol-phosphorylcholine concentration without alteration 【triple bond】2004

    • Author(s)
      Shirayama, Y.
    • Journal Title

      European Journal of Neuroscience 20

      Pages: 749-758

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Sequence of forebrain activation induced by intraventricular injection of hypertonic NaCl2004

    • Author(s)
      Morita, H., et al.
    • Journal Title

      Autonomic Neuroscience : Basic and Clinical 113

      Pages: 43-54

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] In vivo 31P NMR spectroscopy shows an increase in glycerol-phosphorylcholine concentration without alteration2004

    • Author(s)
      Shirayama, Y., et al.
    • Journal Title

      European Journal of Neuroscience 20

      Pages: 749-758

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Sequence of forebrain activation induced by intraventricular injection of hypertonic NaCl detected by Mn^<2+> contrasted T_1-weighted MRI2004

    • Author(s)
      Morita, H.
    • Journal Title

      Autonomic Neuroscience : Basic and Clinical 113

      Pages: 43-54

    • Related Report
      2004 Annual Research Report
  • [Journal Article] In vivo 31P NMR spectroscopy show an increase in glycerol-phosphorylcholine concentration without alteration...2004

    • Author(s)
      Shirayama, Y.
    • Journal Title

      European Journal of Neuroscience 20

      Pages: 749-758

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 若年健常女性の唾液成分における周期的変動の研究、SQ,DQ-NMRスペクトルによる唾液のin situ分析2004

    • Author(s)
      高橋征三
    • Journal Title

      Japanese Journal of Magnetic Resonance in Medicine 24

      Pages: 223-223

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Human Saliva 1H-NMR Study Characterizing Macromolecule/Metabolites Interaction.2004

    • Author(s)
      Takahashi, S.
    • Journal Title

      Proc.Int'l.Soc.Magn.Reson.Med. 12

      Pages: 2025-2025

    • Related Report
      2004 Annual Research Report
  • [Publications] 高橋 征三: "1量子及び2量子遷移スペクトルの同時測定法の開発"Japanese Journal of Magnetic Resonance in Medicine. 23. 194 (2003)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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