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新しい動脈硬化診断指標:キャピラリーITP法での血中酸化LDL測定確立と臨床意義

Research Project

Project/Area Number 15790403
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Circulatory organs internal medicine
Research InstitutionFukuoka University

Principal Investigator

瀬川 波子  福岡大学, 医学部, 助手 (80352251)

Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2004: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2003: ¥2,000,000 (Direct Cost: ¥2,000,000)
Keywords変性LDL / Small, dense LDL / キャピラリー等速電気泳動 / Heparin-Mg^<2+>沈澱法 / Large, light LDL / Fast-migrating LDL / LDL亜分画 / 酸化LDL / リポ蛋白分画 / Negative charge / Native LDL / Cu^<2+>による酸化 / Apo B除去血漿
Research Abstract

平成15年度には、キャピラリー等速電気泳動(cITP)法を用いて荷電によるLDL亜分画の分離、定量と特性を検討した。平成16年度には、cITPによるLDL亜分画[fast-migrating LDL (fLDL)とslow-migrating LDL (sLDL)]と比重によるLDL分画との間の関連を検討した。
対象は8名正脂血症(NL)、8名高コレステロール血症(HC)と、9名高トリグリセライド血症(HTG)を有するものとした。早朝空腹時採血を行い、血清を分離した。比重によるLDL亜分画はheparin-Mg^<2+>法にて行った。300U/mlのheparin-Na^+溶液と180mM MgCl_2溶液を1対1の割合で混和し、heparin-Mg^<2+>混合液を作った。血清とheparin-Mg^<2+>溶液(1:1)を混和し、氷上で25分間静置した後、micro centrifugeで4℃、15000rpm、15分間遠心した。Large, light LDL分画(d > 1.044g/ml)が沈澱され、small, dense LDL分画が上清に残るので、比重によるLDL分画が分離される。6μlの血清と12μlのlarge, light LDL分画除去血清を用いてNBD-ceramideで染色した後、cITP分析を行った。cITP fLDL値は内部マーカーに対するピーク下面積として定量した。Large, light LDL分画でのcITP fLDLは血清とsmall, dense LDL分画でのcITP fLDL値より計算した。
NL、HC、HTG群いずれにおいても、cITP LDLはsmall, dense LDL分画ではlarge, light LDL分画と比較して高値を示した。これは、cITP LDLが主にsmall, dense LDL分画に分布されることを示した。しかし、HCとHTG群ではsmall, dense LDL分画においてもlarge, light LDL分画においてもcITP LDLがNL群と比較して高値を示した。この結果は、HCとHTGにおいては、small, dense LDL分画だけではなく、large, dense LDL分画でのcITP fLDLの増加も重要である可能性を示唆した。

Report

(2 results)
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • Research Products

    (12 results)

All 2005 2004 Other

All Journal Article (6 results) Publications (6 results)

  • [Journal Article] A comparative crossover study of the effects of fluvastatin and paravastatin (FP-COS) on circulating autoantibodies to oxidized LDL in patients with hypercholesterolemia2005

    • Author(s)
      1.Zhang, B, et al.
    • Journal Title

      J Atheroscler Thromb 12

      Pages: 41-47

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Correlation of high density lipoprotein (HDL)-associated sphingosine 1-phosphate with serum levels of HDL-cholesterol and apolipoproteins2005

    • Author(s)
      2.Zhang, B, et al.
    • Journal Title

      Atherosclerosis 178

      Pages: 199-205

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Inhibition of cholesteryl ester transfer protein activity by JTT-705 increases apolipoprotein E-containing high-density lipoprotein and favorably affects the function and enzyme composition of high-density lipoprotein in rabbits2004

    • Author(s)
      3.Zhang, B, et al.
    • Journal Title

      Arterioscler Thromb Vasc Biol 24

      Pages: 1910-1915

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Associations among plasma lipoprotein subfractions as characterized by analytical capillary isotachophoresis, apolipoprotein E phenotype, Alzheimer disease, and mild cognitive impairment2004

    • Author(s)
      4.Zhang, B, et al.
    • Journal Title

      Arterioscler Thromb Vasc Biol 24

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Simple and rapid detection of uncoupling protein-2-866G/A polymorphism by mutagenically separated polymerase chain reaction2004

    • Author(s)
      5.Zhang, B, et al.
    • Journal Title

      Clin Chim Acta 344

      Pages: 205-210

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Serum high-density lipoprotein-cholesterol levels modify the association between plasma levels of oxidatively modified low-density lipoprotein and coronary artery disease in men2004

    • Author(s)
      6.Zhang, B, et al.
    • Journal Title

      Metabolism 53

      Pages: 423-429

    • Related Report
      2004 Annual Research Report
  • [Publications] Shimoji E, Zhang B, et al.: "Inhibition of cholesteryl ester transfer protein increases serum apolipoprotein (apo) A-I levels by increasing the synthesis of apo A-I in rabbits"Atherosclerosis. 172. 247-257 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Zhang B, et al.: "Effect of atorvastatin on total lipid profiles assessed by analytical capillary isotachophoresis"Cardiology. 99. 211-213 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Zhang B, et al.: "Paraoxonase (Pon1) Q192R polymorphism and serum Pon1 activity in diabetic patients on maintenance hemodialysis"Clinical Nephrology. 60. 257-265 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Zhang B, et al.: "Multivariate analysis of the prognostic determinants of the depressor response to exercise therapy in patients with essential hypertension"Circulation Journal. 67. 579-584 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Zhang B, et al.: "Evaluation of apolipoprotein A-I kinetics in rabbits in vivo using in situ and exogenous radioiodination methods"Lipids. 38. 209-218 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Zhang B, et al.: "The I allele of the angiotensin-converting enzyme gene is associated with an increased percentage of slow-twitch type I fibers in human skeletal muscle"Clinical Genetics. 63. 139-144 (2003)

    • Related Report
      2003 Annual Research Report

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

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