Our data suggest a high oxidative stress due to the release of nitric oxide synthase and xanthine oxidase within the dilated spermatic vein. The reaction resulted in dramatic formation of nitric oxide, peroxynitrite and S-nitrosothiols, which are biologically active. Formation of peroxynitrite from the reaction of nitric oxide with superoxide could be a causative factor for impaired sperm function in patients with varicocele.
Our data indicate that bladder cancer antigen may be a more potent diagnostic marker for bladder cancer than NMP22 and the BTA stat test based on the higher sensitivity for detecting low stage and low grade tumors, and the higher specificity. The contribution of these tests for detection of bladder cancer should still be considered adjunctive to cystoscopy.
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