Tuesday, June 9, 2009

Urinary nitrites

Urinary nitrites are higher in patients with enuresis (1) indicating a connection between nitric oxide (NO) regulation and enuresis ("over-active bladder"). "NO plays an important role in the micturition process and disorders [IC, cystitits, enuresis] of the lower urinary tract."(2) Some IC patients show significant improvement with decreasing bladder NO.(3)
Nitric oxide (NO) has been shown to be significantly higher in the prostatic urethra of NIH-IIIa patients, but not in NIH-IIIb patients.(4)

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(1) Al-Waili NS Increased urinary nitrite excretion in primary enuresis: effects of indomethacin treatment on urinary and serum osmolality and electrolytes, urinary volumes and nitrite excretion. BJU Int 90:294-301, 2002.
(2) Ho MH, Bhatia NN, Khorram O. Physiologic role of nitric oxide and nitric oxide synthase in female lower urinary tract. Curr Opin Obstet Gynecol 16(5):423-429, 2004.
(3) Hosseini A, Ehren I, Wiklund NP. Nitric oxide as an objective marker for evaluation of treatment response in patients with classic interstitial cystitis. J Urol 172(6 Pt 1):2261-2265, 2004.
(4) Hosseini A, Herulf M, Ehren I. Measurement of nitric oxide may differentiate between inflammatory and non-inflammatory prostatitis. Scand J Urol Nephrol 40(2):125-130, 2006.

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