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2005 Fiscal Year Final Research Report Summary

Establishment of continuous monitoring method of hemoglobin level using non-invasive instrument

Research Project

Project/Area Number 16590458
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Laboratory medicine
Research InstitutionKobe University

Principal Investigator

SAIGO Katsuyasu  Kobe University, Hospital, Lecturer, 医学部附属病院, 講師 (20304107)

Co-Investigator(Kenkyū-buntansha) KUMAGAI Shunichi  Kobe University, Graduate School of Medicine, Professor, 大学院・医学系研究科, 教授 (00153346)
Project Period (FY) 2004 – 2005
Keywordsnon-invasive detection of hemoglobin / Astrim / Fragmented red cells / Spherocytes / Autologous blood storage
Research Abstract

We evaluated new instrument, Astrim (Sysmex) that can detect hemoglobin level non-invasively, for the purpose of the clinical usage such as continuous monitoring. The effects of biological conditions on hemoglobin detection by Astrim, and possibility of application to autologous blood collection were studied.
1.The effects of morphological changes of RBC
We studied about the effects of fragmented red cells (FRC) on hemoglobin detection by Astrim. FRC were produced from washed red cells by heart treatment. There was no affection of FRC on hemoglobin detection in the samples containing FRC in the ratio of up to 18%. O the other hand, hemolytic samples obtained by freezing-thawing method gave us slightly lower data in comparison with those obtained by automatic hematology analyzer. Moreover, spherocytes made in hypotonic solution affected to obtain higher data than true values.
2.The effects of clinically available drug
The effects of several drugs that can be used for the patients in severe … More condition were studied. In these drugs, addition of soybean oil, Intrafat^R, resulted in slightly higher data than true valus. However, as only 2g/dL change was observed in the blood sample containing 10% soybean oil, no clinical restriction will be required.
3.Development of new detection probe suitable for wrists
Because original Astrim, which use permeable characteristics of near-infrared radiations for middle finger, cannot be applied to severely ill patients, new detection probe suitable for wrists using reflection radiation has been developed.
4.Application to pre-evaluation for the patients who undergo autologous blood storage
One hundred and twenty two hemoglobin values before blood collection from 52 patients were evaluated with both Astrim and conventional hematology analyzer. The values obtained by Astrim (NINV-Hb) significantly correlated with those by hematology analyzer (TR-Hb) (r=0.527, p<0.0001). There was no relationship between the ratio of NINV-Hb/TR-Hb and MCV nor RDW. As in the 8 cases the differences of the two method were larger than 2.1, these patients were considered not suitable for Astrim trial. In the remaining 44 cases, 49 second or later blood collection exhibited more than 12g/dL hemoglobin by Astrim. In these cases, all detection with one exception exhibited more than 11g/dL of TR-Hb. It seems to be possible to omit hematological pre-check for these patients. Less

  • Research Products

    (12 results)

All 2006 2005 Other

All Journal Article (12 results)

  • [Journal Article] Excellent results obtained with rituximab combined with a small dose of L-PAM for a refractory follicular lymphoma patient.2006

    • Author(s)
      Saigo K
    • Journal Title

      Leukemia and Lymphoma 47(2)

      Pages: 353-356

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Excellent results obtained with rituximab combined with a small dose of L-PAM for a refractory follicular lymphoma patient.2006

    • Author(s)
      Katsuyasu, Saigo
    • Journal Title

      Leukemia and Lymphoma 47(2)

      Pages: 353-356

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Albumin attenuates neutrophil activation induced by stimulators including antibodies against neutrophil-specific antigens.2005

    • Author(s)
      Hashimoto M
    • Journal Title

      Transfusion and Apheresis Science 33

      Pages: 289-298

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Usefulness of particle image analyzer for evaluation of fragmented red cells.2005

    • Author(s)
      Saigo K
    • Journal Title

      Transfusion and Apheesis Science 33

      Pages: 71-73

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Differential expression of proteinase inhibitor-9 and granzyme B mRNA in activated immunocompetent cells2005

    • Author(s)
      Horie O
    • Journal Title

      Tohoku Journal of Experimental Medicine 205(2)

      Pages: 103-114

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Von Willebrand Factor-cleaving protease activity remains at the intermediate level in thrombotic thrombocytopenic purpura. A CML case treated with interferon-alpha.2005

    • Author(s)
      Sugimoto T
    • Journal Title

      Acta Haematologica 113(3)

      Pages: 198-203

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Albumin attenuates neutrophil activation induced by stimulators including antibodies against neutrophil-specific antigens.2005

    • Author(s)
      Makoto, Hashimoto
    • Journal Title

      Transfusion and Apheresis Science 33

      Pages: 289-298

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Usefulness of particle image analyzer for evaluation of fragmented red cells.2005

    • Author(s)
      Katsuyasu, Saigo
    • Journal Title

      Transfusion and Apheresis Science 33

      Pages: 71-73

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Differential expression of proteinase inhibitor-9 and granzyme B mRNA in activated immunocompetent cells.2005

    • Author(s)
      Osamu, Horie
    • Journal Title

      Tohoku Journal of Experimental Medicine 205(2)

      Pages: 103-114

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Von Willebrand Factor-cleaving protease activity remains at the intermediate level in thrombotic thrombocytopenic purpura. A CML case treated with interferon-alpha.2005

    • Author(s)
      Takeshi, Sugimoto
    • Journal Title

      Acta Haematologica 113(3)

      Pages: 198-203

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Troglitazone inhibits cell growth and induces apoptosis of B-ALL cells with t(14;18)

    • Author(s)
      Takenokuchi M
    • Journal Title

      Acta Haematologica (In press)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Troglitazone inhibits cell growth and induces apoptosis of B-ALL cells with t(14;18)

    • Author(s)
      Mariko, Takenokuchi
    • Journal Title

      Acta Haematologica (in press)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2007-12-13  

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