No differences in lipids were identified between Miniature Schnauzers with and without CaOx stones. Distinct metabolic subsets of stone formers might exist within the breed. Reduced N-delta-acetylornithine in stone formers is also reported in human stone formers and might reflect dietary acid load. Acetylcarnitine and carnitine enrichment in the urine of stone formers also warrants further exploration.
Coffey et al. (Fri,) studied this question.