Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to purine: uric acid, low purine diet


a heterocyclic compound that is the nucleus of the purine bases such as adenine and guanine (which occur in DNA and RNA), and xanthine and hypoxanthine.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

pur·ine (Pur),

(pyūr'ēn, -rin),
The parent substance of adenine, guanine, and other naturally occurring purine "bases."
Farlex Partner Medical Dictionary © Farlex 2012


1. A double-ringed, crystalline organic base, C5H4N4, that is the parent compound of a large group of biologically important compounds.
2. Any of a group of substituted derivatives of purine, including the nitrogen bases adenine and guanine, which are components of nucleic acids. Uric acid, caffeine, theobromine, and theophylline are also purines.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


The parent substance of adenine, guanine, and other naturally occurring so-called purine bases; not known to exist as such in mammals.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


one of two types of base found in NUCLEIC ACIDS, having a double ring structure; see ADENINE and GUANINE. Purines always pair with PYRIMIDINES in the two strands of DNA, ensuring a parallel-sided molecule.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005


A white crystalline substance that is one of the building blocks of DNA. Uric acid is produced when purine is broken down in the body.
Mentioned in: Gout, Uric Acid Tests
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Park said the biggest innovation of the "Purine Metabolite Assay Kit" is that it is simple, fast, safe and inexpensive.
Enjoy foods low in purine, such as cauliflower, peas, beans, sweet potatoes and low-fat dairy.
Effluents were monitored at different UV wave lengths and optimum sensitivity was detected at 235 nm for purine metabolites, creatinine, and the internal standard.
In regard to ruminal nucleic acid bases, the variation coefficient of uracil bases was highest but that of purine was lowest.
In this study, the biosynthetic pathways of purine and pyrimidine nucleosides in H.
Meats and other animal proteins -- such as eggs and fish -- contain purines, which break down into uric acid in the urine.
Our results are in agreement with many other studies [17] which suggested that the overall purine enzymatic pattern confers selective advantages to disease cells by making them more efficient for retention and production of precursors for synthesis of purine and pyrimidine nucleotides and subsequently, for RNA and DNA biosynthesis, it was suggested that oxidative stress might be increased in abnormal conditions and may affect the course of the disease.
Kaneko et al., 20l 4) reported that the dried soybean have higher levels of purine and uric acid (172.5 mg and 201.7mg /100g), while broad bean have 35.5mg,41.5mg/100g and green peas have 18.9mg and 21.9mg/100g respectively.
However, if you were to be selective about it, wine and hard liquor have fewer purines than beer.
Purine Pharma is currently introducing a line of all-natural cough syrups.
Uric acid is the final breakdown product of purine degradation in human beings having no physiological role.