Németh Norbert, Lesznyák Tamás, Szokoly Miklós, Bráth Endre, Peto Katalin, Szabó Györgyi, Gulyás Adrienn, Kiss Ferenc, Imre Sándor, Furka István, Mikó Irén
Debreceni Egyetem Orvos- és Egészségtudományi Centrum, Sebészeti Mutéttani Tanszék, Debrecen.
Magy Seb. 2005 Apr;58(2):144-7.
Rheological properties of the blood are determined by several factors and if they change it may be diagnostic for many diseases. It is well-known that during ischemia and reperfusion different free-radical liberating pathways are inducted besides the local physical and metabolical changes. These processes may harm red blood cells by increasing their rigidity and impairing their deformability. In ischemia-reperfusion models measurements of erythrocyte deformability is important. Characteristic alterations were observed in both rat and dog hind limb ischemia-reperfusion with vascular clamping on femoral vessels for 1 or 3 hours. Erythrocyte deformability was significantly impaired on the postoperative 1st-3rd days. The acute limb ischemia-reperfusion experimental models seem suitable for further in vivo rheological studies.
血液的流变学特性由多种因素决定,如果这些特性发生变化,可能对多种疾病具有诊断意义。众所周知,在缺血和再灌注过程中,除了局部物理和代谢变化外,还会引发不同的自由基释放途径。这些过程可能会通过增加红细胞的刚性并损害其变形能力来损伤红细胞。在缺血-再灌注模型中,测量红细胞变形能力很重要。在大鼠和犬的后肢缺血-再灌注模型中,通过夹闭股血管1或3小时,均观察到了特征性改变。术后第1至3天,红细胞变形能力明显受损。急性肢体缺血-再灌注实验模型似乎适合进一步的体内流变学研究。