Preventive Effects of COX-2 Inhibitor, Celecoxib on Renal Tubular Injury Induced by Shock Wave Lithotriptor

Overview

Journal Urol Res

Specialty Urology

Date 2009 Dec 2

PMID 19949782

Citations 2

Authors

Hyoung Keun Park

Hae Won Lee

Kwang Soo Lee

Jong Sun Choi

Byong Chang Jeong

Hyeon Hoe Kim

Affiliations

Soon will be listed here.

Abstract

Our study was designed to investigate the protective effect of the COX-2 inhibitor, celecoxib, on renal tubules against shock wave lithotripsy (SWL). Sprague-Dawley rats were randomly divided into three groups: sham, control, and COX-2 groups. The control group was administrated normal saline. The COX-2 group was administered celecoxib (10 mg/kg). After administration for 1 week, the control and COX-2 groups received 1,000 shock waves. Before and after SWL, 24-h urine was collected. CCr was measured to assess renal function. To determine the renal tubular injury, N-acetyl glucosaminidase (NAG) and beta-2 microglobulin levels in urine were quantified. The COX-2 gene expression was compared between the three groups. Prior to SWL, all groups had similar levels of NAG and beta-2 microglobulin. After SWL, all groups showed similar CCr. Compared with the sham group, control and COX-2 groups produced increase of NAG and beta-2 microglobulin excretion. However, NAG and beta-2 microglobulin excretions were significantly lower in the COX-2 group than control group. The COX-2 gene expression did not increase in the sham group. However, the COX-2 gene expression was significantly increased in the control group, which was prevented by celecoxib in COX-2 group. Biochemical findings supported a renal protective effect of celecoxib on SWL. This study suggests that celecoxib would be useful prior and after SWL because of renal protective effects.

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