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Research for the effect of vaso-activators in neonatal vascular smooth muscle

Research Project

Project/Area Number 15591888
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Pediatric surgery
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

IEIRI Satoshi  KYUSHU UNIVERSITY, University Hospital, Research Associate, 大学病院, 助手 (00363359)

Co-Investigator(Kenkyū-buntansha) SUITA Sachiyo  KYUSHU UNIVERSITY, University Hospital, Mayor of Hospital, 大学病院, 病院長 (30038856)
TAGUCHI Tomoaki  KYUSHU UNIVERSITY, Faculty of Medicine, Professor, 大学大学院, 教授 (20197247)
TAJIRI Tatsurou  KYUSHU UNIVERSITY, Faculty of Medicine, Associate Professor, 大学大学院, 助教授 (80304806)
OGITA Keiko  KYUSHU UNIVERSITY, Faculty of Medicine, Research Associate, 大学大学院, 助手 (40346771)
UESUGI Toru  KYUSHU UNIVERSITY, University Hospital, The Medical Staff, 大学病院, 医員 (30380421)
Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2004: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2003: ¥1,500,000 (Direct Cost: ¥1,500,000)
KeywordsPersistent pulmonary hypertension of newborn / Vascular smooth muscle / Vasodilator / Pulmonary artery / Intracellular Ca concentration / Mechanical ventilation / Cytokine / Stress / 細胞内カルシウム濃度
Research Abstract

The aim of this study is to elucidate the effect of stress (mechanical ventilation) in neonatal vascular smooth muscle using a rat model. Pregnant Sprague-Dawley rats were treated by experimental protocols on day 21 of gestation. We used the following two groups : The fetal stabilization group (FS-group) which consisted of neonatal rats treated by fetal stabilization. They received morphine hydrochloride (3mg/kg) via the placenta by means of maternal intra-abdominal injection before undergoing a caesarean section. In the control group (C-group), they received no morphine hydrochloride during the perinatal period. Tracheal intubations were performed in neonates after caesarean section in both groups. All neonatal rats were managed under mechanical ventilation for 4 hours. We collected the samples at birth and at 4 hours after birth in both groups and then measured the serum Tumor-necrosis-factor-alpha (TNF-α), Interleukin-6 (IL-6) concentrations and the TNF-α concentration in BALF by ELISA. The specimens obtained from the right lung were immunohistochemically stained with anti-mouse TNF-α polyclonal antibody. The levels of serum TNF-α at birth and IL-6 at 4 hours after birth in the C-group increased, in comparison to that in the FS-group. At birth in the C-group, the TNF-α concentration in BALF tended to be higher than that in the FS-group. TNF-α positive cells were identified in the bronchial muscular layers, arterial media and externa in both groups. The staining intensity in the FS-group was weaker than that in the C-group both at birth and at 4 hours after birth. Our result suggests that the regulation of the production of inflammatory cytokines may regulate the action of vascular smooth muscle.

Report

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

    (24 results)

All 2005 2004 Other

All Journal Article (18 results) Publications (6 results)

  • [Journal Article] Hirschsprung's disease in Japan : analysis of 3852 patients based on a nationwide survey in 30 years2005

    • Author(s)
      Suita S, Taguchi T, Ieiri S, Nakatsuji T.
    • Journal Title

      Journal of Pediatric Surgery 40.1

      Pages: 197-202

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Long-term effects of intrauterine exposure to mono-n-butyl phthalate on the reproductive function of postnatal rats.2005

    • Author(s)
      Kai H, Shono T, Tajiri T, Suita S.
    • Journal Title

      Journal of Pediatric Surgery 40.2

      Pages: 429-433

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Effect of liver transplantation on multiple bone fractures in an infant with end-stage biliary atresia : a case report.2005

    • Author(s)
      Katsura S, Ogita K, Taguchi T, Suita S, et al.
    • Journal Title

      Pediatric Surgery International 21.1

      Pages: 47-79

    • NAID

      10019042029

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Endoscopic diverticulotomy for symptomatic pediatric esophageal diverticula.2005

    • Author(s)
      Nishimoto Y, Taguchi T, Ogita K, Hashizume M, Suita S.
    • Journal Title

      Pediatric Surgery International 21.1

      Pages: 50-53

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Hirschsprung's disease in Japan : analysis of 3852 patients based on a nationwide survey in 30 years2005

    • Author(s)
      Suita S, Taguchi T, Ieiri S, Nakatsuji T
    • Journal Title

      Journal of Pediatric Surgery 40(1)

      Pages: 197-199

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Long-term effects of intrauterine exposure to mono-n-butylphthalate on the reproductive function of postnatal rats.2005

    • Author(s)
      Kai H, Shono T, Tajiri T, Suita S
    • Journal Title

      Journal of Pediatric Surgery 40(2)

      Pages: 429-433

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Effect of liver transplantation on multiple bone fractures in an infant with end-stage biliary atresia : a case report.2005

    • Author(s)
      Katsura S, Ogita K, Taguchi T, Suita S, et al.
    • Journal Title

      Pediatric Surgery International 21(1)

      Pages: 47-49

    • NAID

      10019042029

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Endoscopic diverticulotomy for symptomatic pediatric esophageal diverticula.2005

    • Author(s)
      Nishimoto Y, Taguchi T, Ogita K, Hashizume M, Suito S
    • Journal Title

      Pediatric Surgery International 21(1)

      Pages: 50-53

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Hirschsprung's disease in Japan : analysis of 3852 patients based on a nationwide survey in 30 years2005

    • Author(s)
      Suita S, Taguchi T, Ieiri S, Nakatsuji T.
    • Journal Title

      Journal of Pediatric Surgery 40・1

      Pages: 197-202

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Long-term effects of intrauterine exposure to mono-n-butyl phthalate on the reproductive function of postnatal rats.2005

    • Author(s)
      Kai H, Shono T, Tajiri T, Suita S.
    • Journal Title

      Journal of Pediatric Surgery 40・2

      Pages: 429-433

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Effect of liver transplantation on multiple bone fractures in an infant with end-stage biliary atresia : a case report.2005

    • Author(s)
      Katsura S, Ogita K, Taguchi T, Suita S, et al.
    • Journal Title

      Pediatric Surgery International 21・1

      Pages: 47-49

    • NAID

      10019042029

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Endoscopic diverticulotomy for symtomatic pediatric esophageal diverticula.2005

    • Author(s)
      Nishimoto Y, Taguchi T, Ogita K, Hashizume M, Suita S.
    • Journal Title

      Pediatric Surgery International 21・1

      Pages: 50-53

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Quantitative study of pulmonary endocrine cells in fetal, postnatal and adult sheep.2004

    • Author(s)
      Asabe K, Jennings RW, Harrison MR, Suita S.
    • Journal Title

      Journal of Veterinary Medical Science 66.4

      Pages: 373-380

    • NAID

      110003886415

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Immunosuppressive effect of nucleoside-nucleotide-free diet in rat allogeneic small intestinal transplantation.2004

    • Author(s)
      Ogita K, Suita S, Taguchi T, Uesugi T.
    • Journal Title

      Transplantation Proceedings 36.2

      Pages: 329-330

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Quantitative study of pulmonary endocrine cells in fetal, postnatal and adult sheep.2004

    • Author(s)
      Asabe K, Jennings RW, Harrison MR, Suita S
    • Journal Title

      Journal of Veterinary Medical Science 66(4)

      Pages: 373-380

    • NAID

      110003886415

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Immunosuppressive effect of nucleoside-nucleotide-free diet in rat allogeneic small intestinal transplantation.2004

    • Author(s)
      Ogita K, Suita S, Taguchi T, Uesugi T
    • Journal Title

      Transplantation Proceedings 36(2)

      Pages: 329-330

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Quantitative study of pulmonary endocrine cells in fetal, postnatal and adult sheep.2004

    • Author(s)
      Asabe K, Jennings RW, Harrison MR, Suita S.
    • Journal Title

      Journal of Veterinary Medical Science 66・4

      Pages: 373-380

    • NAID

      110003886415

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Immunosuppressive effect of nucleoside-nucleotide-free diet in rat allogeneic small intestinal transplantation.2004

    • Author(s)
      Ogita K, Suita S, Taguchi T, Uesugi T.
    • Journal Title

      transplantation Proceedings 36・2

      Pages: 329-330

    • Related Report
      2004 Annual Research Report
  • [Publications] Suita S, Tajiri T, et al.: "Improved survival outcome for hepatoblastoma based on an optimal chemotherapeutic regimen. -A report from the study group for pediatric solid malignant tumors in the Kyushu Area, Japan"Journal of Pediatric Surgery. 39. 195-198 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Taguchi T, Suita S, et al.: "Universal distribution of c-kit positive cells in different types of Hirschsprung's disease"Pediatric Surgery International. 19. 273-279 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Taguchi T, Suita S, et al.: "The efficacy of autologous cord-blood transfusion in neonatal surgical Patients"Journal of Pediatric Surgery. 38. 604-607 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Tajiri T, Tanaka S, Suita S, et al.: "Expression of a MYCN-interacting isoform of the tumor suppressor BIN1 is reduced in neuroblastomas with unfavorable biological features"Clinical Cancer Research. 9. 3345-3355 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Ogita K, Suita S, et al.: "Effects of omega-3 fatty acids in rat allogenic small intestinal transplantation"Pediatric Surgery International. 19. 157-161 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Ogita K, Takada N, Taguchi T, Suita S, et al.: "Renal tubular acidosis secondary to FK506 in living liver Transplantation : A case report"Asian Journal of Surgery. 26. 218-220 (2003)

    • Related Report
      2003 Annual Research Report

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

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