The role of oral nitrate in the nitrosation of [14C]proline by conventional microflora and germ-free rats.


The urinary excretion of N-nitroso-L-[U-14C]proline by conventional microflora and germ free rats was used to assess the role of the gut bacteria and oral nitrate in the endogenous formation of N-nitroso compounds. The formation of nitrosoproline was qualitatively similar in conventional and germfree rats (equivalent to nitrosation of approximately 0.01-0… (More)


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