Oztürk Hayrettin, Ozturk Hulya, Dokucu Ali Ihsan
Department of Pediatric Surgery, Dicle University, Medical School, Diyarbakir, Turkey.
Int Urol Nephrol. 2007;39(2):565-70. doi: 10.1007/s11255-006-9024-6.
The aim of this study was to investigate the role of adhesion molecules in epididymal injury induced by I-R in the rats.
A total of 20 male Sprague-Dawley rats were separated into two groups. A sham operation was performed in group 1 (control). In group 2 (I-R), following 6 h of unilateral spermatic cord torsion, 1-h detorsion of the testis was performed. Then, epididymides were removed to measure the tissue levels of malondialdehyde (MDA) and to make histological examination.
MDA values increased in the group 2. In the group 2 rats demonstrated significant disorganization of the epithelium and loss of microvilli in the epididymal tissue. No abnormal microscopic findings of the epididymis of the rats in the control group. The tenascin expression in the interstitial area of the epididymis was intense in the group 2. ICAM-1 expression by intense brown staining was seen along the basement membrane in epididymal tissue from I to R group rats. The microvillus sites of the epithelia in I-R group were stained mildly by lectin.
The increased expression of adhesion molecules found in epididymal injury induced during postischemic reperfusion might implicate importance of inflammatory infiltration.
本研究旨在探讨黏附分子在大鼠缺血再灌注诱导的附睾损伤中的作用。
将20只雄性Sprague-Dawley大鼠分为两组。第1组(对照组)进行假手术。第2组(缺血再灌注组),单侧精索扭转6小时后,对睾丸进行1小时的解扭转。然后,取出附睾以测量组织丙二醛(MDA)水平并进行组织学检查。
第2组MDA值升高。第2组大鼠附睾组织上皮明显紊乱,微绒毛缺失。对照组大鼠附睾未见异常显微镜下表现。第2组附睾间质区域的腱生蛋白表达强烈。在缺血再灌注组大鼠的附睾组织中,沿基底膜可见强烈棕色染色的细胞间黏附分子-1(ICAM-1)表达。凝集素对缺血再灌注组上皮的微绒毛部位染色轻度。
缺血再灌注过程中附睾损伤时黏附分子表达增加可能意味着炎症浸润的重要性。