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Time Dependent Bladder Apoptosis Induced by Acute Bladder Outlet Obstruction and Subsequent Emptying is Associated with Decreased MnSOD Expression and Bcl-2/Bax Ratio

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Specialty General Medicine
Date 2010 Nov 10
PMID 21060756
Citations 7
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Abstract

Ischemia/reperfusion (I/R) injury-induced oxidative stress plays an important role in the functional impairment of the bladder following acute bladder outlet obstruction (BOO) via induction of apoptosis. The purpose of this study was to investigate the time course of the bladder apoptosis, and apoptosis related molecular changes in the early stage of acute BOO. Twelve-week-old male Sprague Dawley rats were divided into control, acute BOO only (I), and acute BOO plus subsequent emptying (I/R) for 30, 60, 120 min, 3 days and 2 weeks. We examined the extent of bladder apoptosis, expression of Mn-superoxide dismutase (Mn-SOD), Bcl-2, Bax, caspase 3 and poly (ADP-ribose) (PAR) in the bladder. Bladder apoptosis was significantly increased in the I/R group at 30, 60, and 120 min following bladder emptying. BOO plus subsequent emptying for 30, 60, 120 min showed significant decrease in MnSOD and Bcl-2 expression, and significant increase in caspase 3, Bax expression, and amounts of PAR. These results indicate that bladder apoptosis, induced by acute BOO and subsequent emptying, is associated with decreased MnSOD expression, increased PARP activity and imbalance in apoptosis pathways.

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References
1.
Mladenka P, Simunek T, Hubl M, Hrdina R . The role of reactive oxygen and nitrogen species in cellular iron metabolism. Free Radic Res. 2006; 40(3):263-72. DOI: 10.1080/10715760500511484. View

2.
Liu R, Gao M, Yang Z, Du G . Pinocembrin protects rat brain against oxidation and apoptosis induced by ischemia-reperfusion both in vivo and in vitro. Brain Res. 2008; 1216:104-15. DOI: 10.1016/j.brainres.2008.03.049. View

3.
Van Remmen H, Qi W, Sabia M, Freeman G, Estlack L, Yang H . Multiple deficiencies in antioxidant enzymes in mice result in a compound increase in sensitivity to oxidative stress. Free Radic Biol Med. 2004; 36(12):1625-34. DOI: 10.1016/j.freeradbiomed.2004.03.016. View

4.
Yu H, Lin B, Lee H, Shun C, Yang C, Lai T . Sympathetic vesicovascular reflex induced by acute urinary retention evokes proinflammatory and proapoptotic injury in rat liver. Am J Physiol Renal Physiol. 2004; 288(5):F1005-14. DOI: 10.1152/ajprenal.00223.2004. View

5.
Juan Y, Chuang S, Kogan B, Mannikarottu A, Huang C, Leggett R . Effect of ischemia/reperfusion on bladder nerve and detrusor cell damage. Int Urol Nephrol. 2008; 41(3):513-21. DOI: 10.1007/s11255-008-9492-y. View