1.Protective Effects of the Nuclear Factor Kappa B Inhibitor Pyrrolidine Dithiocarbamate on Experimental Testicular Torsion and Detorsion Injury.
Sahin KABAY ; Hilmi OZDEN ; Gul GUVEN ; Dilek BURUKOGLU ; Mehmet Cengiz USTUNER ; Fatma TOPAL ; Hasan Veysi GUNES ; Derya USTUNER ; Cansu OZBAYER
The Korean Journal of Physiology and Pharmacology 2014;18(4):321-326
Testicular torsion results with the damage of the testis and it is a surgical emergency. Pyrrolidine dithiocarbamate (PDTC) is a low-molecular-weight antioxidant and potent inhibitor of nuclear factor kappa B (NF-kappaB) activation. In this study, we aimed to investigate the effects of PDTC to testicular torsion-detorsion (T/D) injury. Forty adult male Sprague-Dawley rats were separated into four groups. A sham operation was performed in group I. In group II, torsion is performed 2 hours by 720 degree extravaginally testis. In group III, 4 h reperfusion of the testis was performed after 2 h of testicular torsion. In group IV, after performing the same surgical procedures as in group III, PDTC (100 mg/kg, intravenous's) was administered before 30 min of detorsion. The testes tissue malondialdehyde (MDA), superoxide dismutase (SOD) catalase (CAT) level was evaluated. Histological evaluations were performed after hematoxylin and eosin staining. Testicular tissue MDA levels were the highest in the T/D groups compared with treatment group. Administration of PDTC prevented a further increase in MDA levels. Significant decrease occurred in CAT and SOD levels in treatment group compared with the control group. The rats in the treatment group had normal testicular architecture. The results suggest that PDTC can be a potential protective agent for preventing the biochemical and histological changes related to oxidative stress in testicular injury caused by testis torsion.
Adult
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Animals
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Catalase
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Cats
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Emergencies
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Eosine Yellowish-(YS)
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Hematoxylin
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Humans
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Male
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Malondialdehyde
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NF-kappa B*
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Oxidative Stress
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Rats
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Rats, Sprague-Dawley
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Reperfusion
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Spermatic Cord Torsion*
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Superoxide Dismutase
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Testis
2.Multiple renal arteries challenge in laparoscopic donor nephrectomy: how far can we go?.
Volkan GENC ; Ahmet Serdar KARACA ; Erkinbek OROZAKUNOV ; Atil CAKMAK ; Yusuf SEVIM ; Evren USTUNER ; Derya OZTUNA ; Selcuk Mevlut HAZINEDAROGLU
Journal of the Korean Surgical Society 2011;80(4):272-277
PURPOSE: Living donor kidneys with multiple arteries are routinely procured laparoscopically. We aim to present our experience with laparoscopic donor nephrectomy (LDN) and to compare the graft function and outcome between cases with single versus multiple arteries. METHODS: We compared the demographic data, operation time, warm ischemia time, rejection rate, and graft function between LDN kidneys with single artery and those with multiple arteries. RESULTS: Seventy-three cases with 1 renal artery (group LDN-1), 8 cases with 2 renal arteries (group LDN-2) and 5 cases with 3 or more renal arteries (group LDN-3) were included in the study. The mean operative time was significantly higher in groups LDN-2 (100.3 +/- 9.5 minutes) and LDN-3 (120.6 +/- 10.3 minutes) compared to group LDN-1 (75.7 +/- 10 minutes, P < 0.001). Similar results were detected with respect to the warm ischemia time. There were no statistically significant differences related to graft function and outcome among these groups. CONCLUSION: Multiple renal arteries present a special challenge in both donor nephrectomy and renal transplantation. However, laparoscopic procurement of a kidney with multiple renal arteries, regardless of the number, is reliable and has no significant impact on the graft outcome.
Arteries
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Graft Rejection
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Humans
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Kidney
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Kidney Transplantation
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Living Donors
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Nephrectomy
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Operative Time
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Rejection (Psychology)
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Renal Artery
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Tissue Donors
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Transplants
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Warm Ischemia