"Purines" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.
MeSH information
A series of heterocyclic compounds that are variously substituted in nature and are known also as purine bases. They include ADENINE and GUANINE, constituents of nucleic acids, as well as many alkaloids such as CAFFEINE and THEOPHYLLINE. Uric acid is the metabolic end product of purine metabolism.

This graph shows the total number of publications written about "Purines" by people in this website by year, and whether "Purines" was a major or minor topic of these publications.
Bar chart showing 3694 publications over 31 distinct years, with a maximum of 268 publications in 2013
To see the data from this visualization as text, click here.