PMID- 16883624 OWN - NLM STAT- MEDLINE DCOM- 20080117 LR - 20151119 IS - 0263-6484 (Print) IS - 0263-6484 (Linking) VI - 25 IP - 6 DP - 2007 Nov-Dec TI - Protective effect of L-carnitine on testicular ischaemia-reperfusion injury in rats. PG - 611-8 AB - Testicular torsion is a urological emergency referred to as 'acute scrotum', because inappropriate treatment can lead to male subfertility and infertility. A possible cause of testicular damage is the ischaemia-reperfusion (I/R) injury attributed to oxygen free radicals. L-carnitine, a vitamin-like antioxidant, plays a pivotal role in the maturation of spermatozoa within the reproductive tract. The aim of the present paper was to determine the protective effect of L-carnitine on testicular I/R-induced injury. Thirty-two male rats were divided into 4 groups (n = 8). Testicular torsion was created by rotating the right testis 720 degrees in a clockwise direction. Group 1: sham-operated control; group 2: ischaemia; group 3: I/R; group 4: ischaemia-L-carnitine treatment-reperfusion group. L-carnitine (500 mg kg(-1), intraperitoneally) was administered before 30 min of detorsion in Group 4. After torsion (5 h) and detorsion (5 h), bilateral orchidectomy was performed. The malondialdehyde (MDA) level was evaluated in testes. Histopathologically, Johnsen's spermatogenesis criteria and mean seminiferous tubule diameter (MSTD) measurements were used. Testicular MDA levels were higher in the torsion group compared to the sham-control group (p < 0.05). Detorsion (reperfusion) caused a further increase in MDA levels (p < 0.05). Pretreatment with L-carnitine prevented a further increase in MDA levels (p < 0.05). Histologically, torsion caused some separation among germinal cells in the seminiferous tubules, which became much more prominent in the I/R group but was attenuated with L-carnitine pretreatment. In conclusion, L-carnitine pretreatment may have a protective effect in experimental testicular torsion-detorsion model in rats by its well-known antioxidant potential. CI - Copyright (c) 2006 John Wiley & Sons, Ltd. FAU - Dokmeci, Dikmen AU - Dokmeci D AD - Department of Pharmacology, Faculty of Medicine, Trakya University, Edirne, Turkey. ddokmeci@trakya.edu.tr FAU - Inan, Mustafa AU - Inan M FAU - Basaran, Umit Nusret AU - Basaran UN FAU - Yalcin, Omer AU - Yalcin O FAU - Aydogdu, Nurettin AU - Aydogdu N FAU - Turan, Fatma Nesrin AU - Turan FN FAU - Uz, Yesim Hulya AU - Uz YH LA - eng PT - Journal Article PL - England TA - Cell Biochem Funct JT - Cell biochemistry and function JID - 8305874 RN - 12001-76-2 (Vitamin B Complex) RN - 4Y8F71G49Q (Malondialdehyde) RN - S7UI8SM58A (Carnitine) SB - IM MH - Animals MH - Carnitine/administration & dosage/*pharmacology MH - Injections, Intraperitoneal MH - Male MH - Malondialdehyde/metabolism MH - Orchiectomy MH - Rats MH - Rats, Wistar MH - Reperfusion Injury/complications/*physiopathology MH - Seminiferous Tubules/blood supply/drug effects/metabolism MH - Spermatic Cord Torsion/complications/prevention & control MH - Testis/blood supply/*drug effects/metabolism MH - Vitamin B Complex/administration & dosage/pharmacology EDAT- 2006/08/03 09:00 MHDA- 2008/01/18 09:00 CRDT- 2006/08/03 09:00 PHST- 2006/08/03 09:00 [pubmed] PHST- 2008/01/18 09:00 [medline] PHST- 2006/08/03 09:00 [entrez] AID - 10.1002/cbf.1355 [doi] PST - ppublish SO - Cell Biochem Funct. 2007 Nov-Dec;25(6):611-8. doi: 10.1002/cbf.1355.