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1995 Fiscal Year Final Research Report Summary

Effects of shear stress on the intimal hyperplasia of autogenous Vein grafts

Research Project

Project/Area Number 05807107
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field General surgery
Research InstitutionSecond Department of Surgery, Faculty of Medicine, Kyushu University

Principal Investigator

KOMORI Kimihiro  Second Department of Surgery, Faculty of Medicine, Kyushu University (Assistant Professor), 医学部, 講師 (40225587)

Co-Investigator(Kenkyū-buntansha) KUMA Sosei  Second Department of Surgery, Faculty of Medicine, Kyushu University (Medical st, 医学部, 医員
KAWASAKI Katsumi  Second Department of Surgery, Faculty of Medicine, Kyushu University (Medical st, 医学部, 医員
Project Period (FY) 1993 – 1995
Keywordsvein graft / intimal thickening / shear stress / prostacyclin / nitric oxide / eicosapentanoic acid
Research Abstract

Late graft failure is still a significant problem particularly in cases with poor runoff (low shear stress) vessels. We have already reported that the intimal thickening of the autogenous vein graft in the poor runoff model was significantly thicker than that in normal flow group. Endothelium modulates the responsiveness of the underlying vascular smooth muscles by releasing prostacyclin or endothelium-derived relaxing factor <Nitric Oxide (NO) >. These factor are not only vasodilators but also potent inhibitors of platelet aggregation. The present experiments were desingned to examine whether the production of prostacyclin or NO were altered in poor runoff conditions of canine autogenous vein grafts by using a poor runoff model. Under abnormal flow conditions characterized by low shear stress, the production of prostacyclin in the canine vein graft was lower than that in normal flow conditions. In addition, the production of NO in canine vein grafts are also impaired under poor runoff conditions.
Marine oils and high levels of eicosapentanoic acid (EPA) prevents intimal thickening in vein grafts. However, the precise mechanism by which EPA prevents intimal thickening is still unknown. The present experiments was designed toexamine whether EPA supplementation would alter the NO production in reversed vein grafts of dogs. The presents results demonstrated that EPA supplementation reduces intimal thickening of the autogenous vein graft, which may be due to an improved release of NO.
These results suggest that the dysfunction of the endothelium in terms of the decreased production of prostacyclin or NO under abnormal flow conditions may thus increase platelet aggregation and eventually facilitate the development of peripheral arterial occlusive disease and thus the occurrence of late graft failure. The preserved or enhanced endothelial function may be important role for preventing the late graft failure.

  • Research Products

    (40 results)

All Other

All Publications (40 results)

  • [Publications] Komori K., et al.: "Management of concomintant abdominal aortic aneurysm and gastrointestinal malignency." Am J Surg. 166. 108-111 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Komori K., et al.: "Correlation of long term results of extra-anatomical bypass and flow waveform analysis." Eur J Vasc Surg. 7. 479-482 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Onohara T., et al.: "Impaired endothelial prostacyclin production of the canine vein graft in a poor distal runofflimb." Surgery. 113. 700-708 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Onohara T., et al.: "The reversibility of impaired prostacyclin production of the vein graft." J Surg Res. 55. 344-350 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Ishii T., et al.: "Natural course of endothelium-dependent and-independent responses in autogenous femoral veins grafted into the arterial circulation of dog." Circ Res. 72. 1004-1010 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 古森公浩, et al.: "異常血流条件下の宿主動脈および移植自家静脈内皮細胞のendothelium-derived relaxing factor (EDRF)産生能の低下" 日血外会誌. 2. 71-75 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 岡留健一郎, et al.: "間歇性跛行肢の予後-手術例と非手術例の遠隔成績の検討" 脈管学. 33. 257-260 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 岡留健一郎, et al.: "重症虚血肢に対する血行再建術の意義" 日本心臓血管外科学会雑誌. 22. 219-222 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Komori K., et al.: "Surgical strategy of concomitant abdominal aortic aneurysm and gasric cancer" J Vasc Surg. 19. 573-576 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Komori K., et al.: "Impaired vasodilation of peripheral arteries in response to acetylcholine in humans with abdominal aortic aneurysm" J Vasc Surg. 20. 803-807 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Okadome K., et al.: "Do patients with intermittent claudication need surgical treatment?" Inter J Angiol. 13. 103-108 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tanaka S., et al.: "Detection of active cytomegalovirus infection in inflammatory aortic aneurysms using RNA polymerase chain reaction." J Vasc Surg. 20. 235-243 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yamamura S., et al.: "Blood flow and kinetics of smooth muscle cell proliferation in canine autogenous vein grafts" J Surg Res. 56. 155-161 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Itoh H., et al.: "Initimal hyperplasia of experimental autologous vein graft in hyperlipidemic rabbits with poor distal runoff" Atherosclerosis. 110. 259-270 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 古森公浩, et al.: "Shear stressと移植自家静脈血管内皮細胞" 血管外科. 13. 45-48 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 古森公浩, et al.: "慢性動脈閉塞の診断の治療-炎症性動脈疾患-血栓と循環" J Surg Res. 2. 61-66 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 馬場恭太郎, et al.: "下肢血行再建術後におけるDuplex超音波断層検査の有用性-新しいグラフト予後の指標-" 第14回血管無侵襲診断法研究会誌. 51-52 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Komori K., et al.: "Endothelium-dependent relaxation in response to adenosine diphosphate is impaired under poor runoff conditions in the canine femoral artery" J Surg Res. 58. 302-306 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Komori K., et al.: "Eicosapentanoic acid reduces the intimal thickening of autogenous vein grafts and enhances endothelium-derived relaxing factor" J Surg Res. 59. 747-753 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Komori K., et al.: "Thoracoscopic sympathectomy for Buerger's disease of the upper extremities" J Vasc Surg. 22. 344-346 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Odasiro T., et al.: "Comparison of endothelial function between in situ and reversed vein graft : Differences in endothelium-dependent responses" Surgery. 117. 179-188 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Itho K., et al.: "Late graft failure of autologous vein grafts for arterial occlusive disease : clinical and experimental studies" Surg Today. 25. 293-298 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 馬渡恭太郎, et al.: "下肢慢性動脈閉塞性疾患における下肢分節的血圧測定の有用性" 第15回血管無侵襲診断法研究会誌. 49-51 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tanaka S., et al.: "Detection of active dytomegalovirus infection in inflammatory aortic aneurysms using RNA polymerase chain reaction." J Vasc Surg. 20. 235-243 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Komori K., Okadome K., Itoh H., Funahashi S., Sugimachi K.: "Management of concomintant abdominal aortic aneurysm and gastrointestinal malignancy." Am J Surg. 166. 108-111 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Komori K., Okadome K., Funahashi S., Itoh H., Odashiro T., Ishii T., Sugimachi K.: "Correlation of long term results of extra-anatomical bypass and flow waveform analysis." Eur J Vasc Surg. 7. 479-482 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Onohara T., Okadome K., Yamamura S., Komori K., Ishii t., Odashiro T., Sugimachi K.: "Impaired endothelial prostacyclin production of the canine vein graft in a poor distal runoff limb." Surgery. 113. 700-708 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Onohara T., Okadome K., Ishii T., Yamamura S., Komori K.Sugimachi K.: "The reversibility of impaired prostacyclin production of the vein graft." J Surg Res. 55. 344-350 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ishii T., Okadome K., Komori K., Odashiro T., Sugimachi K.: "Natural course of endothelium-dependent and-independent responses in autogenous femoral veins grafted into the arterial circulation of dog." Circ Res. 72. 1004-1010 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Komori K., Okadome K., Funahashi S., Itoh H., Sugimachi K.: "Surgical strategy of concomitant abdominal aortic aneurysm and gasric cancer." J Vasc Surg. 19. 573-576 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Komori K., Mawatari K., Itoh H., Sugimachi K.: "Impaired vasodilation of peripheral arteries in response to acetylcholine in humans with abdominal aortic aneurysm." J Vasc Surg. 20. 803-807 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Okadome K., Funahashi S., Odashiro T., Komori K., Akazawa K., Sugimachi K.: "Do patients with intermittent claudication need surgical treatment?" Inter J Angiol. 13. 103-108 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tanaka S., Komori K., Okadome K., Sugimachi K,Mori R.: "Detection of active cytomegalovirus infection in inflammatory aortic aneurysms using RNA polymerase chain reaction." J Vasc Surg. 20. 235-243 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yamamura S., Okadome K., Onohara T., Komori K., Sugimachi K.: "Blood flow and kinetics of smooth muscle cell proliferation in canine autogenous vein grafts." J Surg Res. 56. 155-161 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Itoh H., Komori K., Funahashi S., Okadome K., Sugimachi K.: "Initimal hyperplasia of experimental autologous vein graft in hyperlipidemic rabbits with poor distal runoff." Atherosclerosis. 110. 259-270 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Komori K., Ishii T., Mawatari K., Odasiro T., Itoh K., Okadome K., Sugimachi K.: "Endothelium-dependent relaxation in response to adenosine diphosphate is impaired under poor runoff conditions in the canine femoral artery." J Surg Res. 58. 302-306 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Komori K., Ishii T., Mawatari K., Odasiro T., Itoh K., Okadome K., Sugimachi K.: "Eicosapentanoic acid reduces the intimal thickening of autogenous vein grafts and enhances endothelium-derived relaxing factor." J Surg Res. 59. 747-753 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Komori K., Kawasaki K., Okazaki J., Eguchi D., Mawatari K., Okadome K., Sadanaga, N., Sugimachi K.: "Thoracoscopic sympathectomy for Buerger's disease of the upper extremities." J Vasc Surg. 22. 344-346 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Odasiro T., Komori K., Ishii T., Okadome K., Sugimachi K.: "Comparison of endothelial function between in situ and reversed vein graft : Differences in endothelium-dependent responses." Surgery. 117. 179-188 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Itoh K., Komori K., Onohara T., Funahashi S., Okadome K., Sugimachi K.: "Late graft failure of autologous vein grafts for arterial occlusive disease : clinical and experimental studies." Surg Today. 25. 293-298 (1995)

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

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Published: 1997-03-04  

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