首页> 外文学位 >Vascular growth after balloon catheter injury in normal rats treated with high-fat diet and insulin implants.
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Vascular growth after balloon catheter injury in normal rats treated with high-fat diet and insulin implants.

机译:用高脂饮食和胰岛素植入物治疗的正常大鼠球囊导管损伤后的血管生长。

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摘要

We wished to determine whether excessive plasma lipid and insulin, as seen in insulin resistance syndrome, increase neointima hyperplasia after balloon carotid injury. Male Sprague Dawley rats were subjected to either (1) subcutaneous blank implants and a low fat diet (C, n = 9) or (2) porcine insulin implants (1, n = 5) and a low fat diet or (3) blank implants and a high fat diet (F, n = 11) and/or (4) porcine insulin implants and a high fat diet (IF, n = 9). The rats received balloon injury 3 days after and were sacrificed on day 14 post-balloon injury to measure neointima growth. Neointima cross-sectional area was significantly higher (p 0.01) in F (F = 0.159 ± 0.01mm2) and IF (IF = 0.151 ± 0.014) than C (C = 0.122 ± 0.006). Interestingly, neointima cross-sectional area was significantly lower (p 0.01) in 1 (I = 0.093 ± 0.004) than C. In conclusion, hyperinsulinemia and hyperlipidemia combined and hyperlipidemia alone enhanced neointima growth whereas hyperinsulinemia alone reduced neointima growth 2 wks after balloon carotid injury.
机译:我们希望确定是否存在过多的血浆脂质和胰岛素,如在胰岛素抵抗综合征中所见,会增加球囊颈动脉损伤后新内膜增生。对雄性Sprague Dawley大鼠进行(1)皮下空白植入和低脂饮食(C,n = 9)或(2)猪胰岛素植入物(1,n = 5)和低脂饮食或(3)空白植入物和高脂肪饮食(F,n = 11)和/或(4)猪胰岛素植入物和高脂肪饮食(IF,n = 9)。大鼠在3天后受到气球损伤,并在气球损伤后第14天处死以测量新内膜的生长。 F(F = 0.159±0.01mm 2 )和IF(IF = 0.151±0.014)的新内膜截面积明显高于C(C = 0.122±0.006)(p <0.01)。有趣的是,新内膜的截面积在1时显着低于(p <0.01)(I = 0.093±0.004)。总之,高胰岛素血症和高脂血症合并加高脂血症可促进新内膜生长,而仅高胰岛素血症可减少球囊术后2周的新内膜生长。颈动脉损伤。

著录项

  • 作者

    Kim, Tony Tae Yub.;

  • 作者单位

    University of Toronto (Canada).;

  • 授予单位 University of Toronto (Canada).;
  • 学科 Biology Animal Physiology.; Health Sciences Medicine and Surgery.
  • 学位 M.Sc.
  • 年度 2002
  • 页码 127 p.
  • 总页数 127
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 生理学;
  • 关键词

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