PMID- 22974612 OWN - NLM STAT- MEDLINE DCOM- 20130211 LR - 20191210 IS - 1531-5037 (Electronic) IS - 0022-3468 (Linking) VI - 47 IP - 9 DP - 2012 Sep TI - Comparison of the protective effect of dipyridamole and acetylsalicylic acid on long-term histologic damage in a rat model of testicular ischemia-reperfusion injury. PG - 1716-23 LID - S0022-3468(12)00153-4 [pii] LID - 10.1016/j.jpedsurg.2012.01.078 [doi] AB - PURPOSE: Ischemia reperfusion injury arising from testicular torsion results in a loss of spermatogenesis and a significant increase in germ cell apoptosis. We investigated the effects of dipyridamole and acetylsalicylic acid (ASA), 2 well-known platelet inhibitors, on testicular ischemia reperfusion injury. METHODS: Thirty adult male Sprague-Dawley rats were randomly divided into 5 groups (n = 6 for each group): control, sham-operated, torsion/detorsion (T/D), T/D + dipyridamole, and T/D + ASA. Testicular ischemia was achieved by rotating the left testis 720 degrees clockwise for 2 hours. Thirty minutes before torsion, 10 mg/kg dipyridamole was injected transperitoneally in the T/D + dipyridamole group, and 100 mg/kg ASA was injected transperitoneally in the T/D + ASA group. Sixty days after the initial surgical procedure, ipsilateral orchiectomies were performed for histopathologic examination to determine Johnsen's mean testicular biopsy score (MTBS), mean seminiferous tubular diameter (MSTD), and apoptotic index (AI) in all groups. RESULTS: Unilateral testicular torsion-detorsion led to a significant decrease in Johnsen's MTBS and MSTD values in the ipsilateral testis and a significant increase in AI values of the T/D group. There were no significant differences between the T/D + dipyridamole and control groups in terms of MSTD and MTBS values. Although an amount of improvement exits in T/D + ASA group, there were significant differences between the T/D + ASA and control group MSTD and MTBS values. There was no significant difference between the T/D + dipyridamole and control groups in terms of AI values (P > .05), but the differences between the T/D + ASA and control groups were significant despite a slight decline in AI values of the T/D + ASA group. CONCLUSIONS: Our findings show that the use of dipyridamole before testicular reperfusion has a potentially protective effect against long-term injury in testicular ischemia reperfusion injury. CI - Copyright (c) 2012 Elsevier Inc. All rights reserved. FAU - Karaguzel, Ersagun AU - Karaguzel E AD - Department of Urology, Karadeniz Technical University, School of Medicine, 61080 Trabzon, Turkey. ersagunkaraguzel@gmail.com FAU - Kutlu, Omer AU - Kutlu O FAU - Yulug, Esin AU - Yulug E FAU - Mungan, Sevdegul AU - Mungan S FAU - Kazaz, Ilke Onur AU - Kazaz IO FAU - Tok, Dogan Sabri AU - Tok DS FAU - Ozgur, Guner Kemal AU - Ozgur GK LA - eng PT - Comparative Study PT - Evaluation Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Pediatr Surg JT - Journal of pediatric surgery JID - 0052631 RN - 0 (Platelet Aggregation Inhibitors) RN - 64ALC7F90C (Dipyridamole) RN - R16CO5Y76E (Aspirin) SB - IM MH - Animals MH - Apoptosis/drug effects MH - Aspirin/pharmacology/*therapeutic use MH - Dipyridamole/pharmacology/*therapeutic use MH - Disease Models, Animal MH - Drug Administration Schedule MH - In Situ Nick-End Labeling MH - Injections, Intraperitoneal MH - Male MH - Platelet Aggregation Inhibitors/pharmacology/*therapeutic use MH - Random Allocation MH - Rats MH - Rats, Sprague-Dawley MH - Reperfusion Injury/etiology/pathology/*prevention & control MH - Spermatic Cord Torsion/*complications/pathology MH - Spermatozoa/drug effects/pathology MH - Testis/drug effects/pathology MH - Treatment Outcome EDAT- 2012/09/15 06:00 MHDA- 2013/02/12 06:00 CRDT- 2012/09/15 06:00 PHST- 2011/12/01 00:00 [received] PHST- 2012/01/05 00:00 [revised] PHST- 2012/01/31 00:00 [accepted] PHST- 2012/09/15 06:00 [entrez] PHST- 2012/09/15 06:00 [pubmed] PHST- 2013/02/12 06:00 [medline] AID - S0022-3468(12)00153-4 [pii] AID - 10.1016/j.jpedsurg.2012.01.078 [doi] PST - ppublish SO - J Pediatr Surg. 2012 Sep;47(9):1716-23. doi: 10.1016/j.jpedsurg.2012.01.078.