Effects of taurine on ischemic/reperfusion myocardium angiogenesis in rats
WANG Ya-ni1
; LIU Xin1; ZHANG Ying2; ZHANG Xi2; WANG Yi-han3; XU Zhe-long1(1.Department of Pathophysiology,Tianjin Medical University,Tianjin 300070,China;2.Department of Pharmacology,Tianjin Medical University, Tianjin 300070,China;?
3. Department of Urology ,the Second Hospital,Tianjin Medical University,Tianjin 300211, China)
目的 : 研究牛磺酸对大鼠缺血心肌血管新生的作用并探讨其作用机制。方法:选用健康雄性 Wistar 大鼠 80 只,随机分为 4 组,每组 20 只:缺血再灌注模型组,低、中、高剂量牛磺酸处理组。缺血再灌注模型组口服生理盐水 10 mL/kg, 每日 1 次,连续 7 d 。低、中、高剂量牛磺酸处理组牛磺酸 200 mg/kg 、 400 mg/kg 、 800 mg/kg 每日 1 次,口服给药,连续 7 d 。采用大鼠心脏冠状动脉缺血再灌注的方法,连续监测心电图,观察牛磺酸对大鼠心肌缺血再灌注后心律失常、心肌梗死范围的影响,并观察牛磺酸对血清中血管内皮生长因子( VEGF )、低氧诱导因子 - α ( HIF-α ) 、血小板 - 内皮细胞粘附分子( CD34 )以及心肌组织中 VEGF 含量的影响。结果 : 与对照组比较,随着剂量的增高 可明显降低动物室性早搏( VPC )和室性心动过速( VT )的发生率, 心肌梗死范围也显著减小,同时在光镜下观察各组随牛磺酸剂量的递增可促进心肌间的血管新生。牛磺酸高、中、低剂量组大鼠血清中 VEGF 、 HIF-α 、 CD34 与心肌中的 VEGF 活性明显升高( P <0.01 )。结论:牛磺酸对大鼠缺血心肌血管新生具有促进作用。
[1]Li X L, Yin Q M, Jiao L L, et al. A convenient synthesis of novel thiazolidin-4-one-linked pseudodisaccharides by tandem staudinger/aza-wittig/cyclization and their biological evaluation [J]. Carbohydr Res, 2011, 346(3):401
[2] 李大庆, 吴明均, 胡晓华, 等. 牛磺酸研究进展[J]. 现代生物医学进展, 2011, 2(11): 390
[3] Heusch G. Cardioprotection: chances and challenges of its translation to the clinic [J]. Lancet, 2013, 381 (9861): 166
[4]Fan Q,Yang X C,Wang S Y,et al.Equivalent cardioprotective effect of“half-conditioning”and post-conditioning in a canine model of myocardial ischemia and reperfusion[J]. Chin J Cardiol,2006,34( 4) : 363
[5]Wu Q, Li H, Wu Y ,et al. Protective effects of muscone on ischemia-reperfusio injury in cardiac myocytes[J]. J Ethnopharmacol,2011,138(1):34
[6]Musiolik J,van Caster P,Skyschally A,et al.Reduction of infarct size by gentle reperfusion without activation of reperfusion injury salvage kinases in pigs[J]. Cardiovasc Res,2010,85( 1) :110
[7]Beyersdorf F. The use of controlled reperfusion strategies in cardiacsurgery to minimize ischaemia /reperfusion damage [J]. Cardiovasc Res,2009,83(2) :262
[8]徐波华,许立.中药抗心肌缺血作用机制的研究进展[J].中国实验方剂学杂志,2011,17(15):265
[9]Miyamoto T A,Ueno T,Iguro Y,et al.Taurine-mediated cardioprotection is greater when administered upon reperfusion than prior to ischemia[J].Adv Exp Med Biol,2009,643: 27
[10]Sahin M A,Yucel O,Guler A,et al.Is there any cardioprotective role of taurine during cold ischemic period following global myocardial ischemia? [J]. J Cardiothorac Surg,2011,6( 31) : 1
[11] Mabjeesh N J,Willard M T,Frederickson C E,et al. Androgens stimulate hypoxia inducible factor activation via autocrine loop of tyrosine kinase receptor/phosphatidylinositol13 kinase/protein kinase B in prostate cancer cells[J]. Clin Cancer Res,2003,9(7):2416
[12] A kagi K,Ikeda Y,Sumiyoshi Y,et al.Estimation of angiogenesis with anti-CD105 immunostaining in the process of colorectal cancer development[J]. Surgery,2002,131(Suppl1):S109