Research in Medicine

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Sadr M, Danial zadeh A, Aryaei Nezhad M R. Studies on Interrelation of Vitamin A Deficiency and Bladder Stones Formation. Research in Medicine 1973; 2 (1 and 2) :30-36
URL: http://pejouhesh.sbmu.ac.ir/article-1-2634-en.html

Serum Vitamin A, total protein, serum electrophoresis, were determined in pediatric patients with urolithiasis (mostly bladder stones) and compared to that of normal healthy volunteers. The level of Vitamin A in healthy volunteers was found to be significantly (P<0.001) higher than that of patients with urolithiasis. The amount of total serum protein, how­ever, was not significantly different in two groups, whereas, the serum albumin fraction was significantly lower in patients. 
The chemical analysis of the stones re­vealed that they are mostly composed of urate or a mixture of urate and oxalate while similar reports confirm the fact that most of the blad­der stones are composed of oxalates. 
Whether the difference is due to dietary habits is uncertain.