Inborn errors of purine–pyrimidine metabolism are a class of inborn error of metabolism disorders specifically affecting purine metabolism and pyrimidine metabolism.
An example is Lesch–Nyhan syndrome.
Urine tests may be of use in identifying some of these disorders.
Famous quotes containing the words inborn, errors and/or metabolism:
“Temperament is the natural, inborn style of behavior of each individual. It’s the how of behavior, not the why.... The question is not, “Why does he behave a certain way if he doesn’t get a cookie?” but rather, “When he doesn’t get a cookie, how does he express his displeasure...?” The environment—and your behavior as a parent—can influence temperament and interplay with it, but it is not the cause of temperamental characteristics.”
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“Here among the mountains the pinions of thought should be strong, and one should see the errors of men from a calmer height of love and wisdom.”
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—Robert Pirosh, U.S. screenwriter, George Seaton, George Oppenheimer, and Sam Wood. Dr. Hugo Z. Hackenbush (Groucho Marx)