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a nucleoside of DNA.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

thy·mi·dine (dThd),

1-(2-Deoxyribosyl)thymine; one of the four major nucleosides in DNA (the others being deoxyadenosine, deoxycytidine, and deoxyguanosine).
Farlex Partner Medical Dictionary © Farlex 2012


A nucleoside, C10H14N2O5, composed of thymine and deoxyribose.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


(dThd) (thī'mi-dēn)
1-(2-deoxyribosyl)thymine; one of the four major nucleosides in DNA (the others being deoxyadenosine, deoxycytidine, and deoxyguanosine).
Synonym(s): deoxythymidine.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
There were significant differences between the groups in terms of thymidine kinase levels, with highest levels in the EGb761 and FK506 groups, followed by the EGb761 + FK506 group (p<0.05) (Table 3).
Studies about thymidine phosphorylase and thymidylate synthase concluded that the expression of these markers could be associated with response to just chemotherapy in rectal cancers, with no considerations about survival differences.
Ohno et al., "A novel 11C-labeled thymidine analog, [[sup.11]C]AZT, for tumor imaging by positron emission tomography," EJNMMI Research, vol.
Thus, depending on the structure and concentration, the cited 1,4-DHP derivatives variously affected thymidine incorporation, cell proliferation, and growth, connected with OS and other metabolic influences.
Thymidine kinase-1 (TK1) is internationally recognized as a marker of abnormal cell proliferation, which enables the dynamic monitoring of the proliferation of cancer cells and can indicate tumor recurrence and metastasis.[sup][16] TK1 is usually detected using a chemiluminescence dot blot assay.[sup][16]
Complete report on Thymidine market spread across 132 pages providing 08 company profiles and 148 tables and figures is available at .
HSV-1 codes for its own thymidine kinase allowing it to replicate in both dividing and non-dividing cells, however dlsptk is tk-null.
More recently, a double deletion (thymidine kinase/gE) BoHV-5 recombinant was constructed and evaluated positively as a candidate vaccine strain (14,15,28-30).
Response of retinoblastoma with vitreous tumor seeding to adenovirus-mediated delivery of thymidine kinase followed by ganciclovir.
It is activated by thymidine phosphrylase enzyme into fluorodeoxyuridylate (5-fluoro-2'deoxyuridine-5'monophosphate, or 5-FdUMP) which inhibits thymidylate synthase, thus preventing deoxyribonucleic acid (DNA) synthesis.2 The concentration of thymidine phosphorylase is 3-10 folds higher in tumour cells compared to its concentration in the healthy tissues, and this can enable selective drug activation of 5-FU at the tumour site with limitation of systemic toxicity.3
"During the development of specialized tissues from stem cells, enzymes belonging to die Tet family also oxidize the thymidine base, as we have now shown widi the aid of highly sensitive analytical methods based on mass spectrometry.
Positive for L-alaninamide, a-ketovaleric acid, dextrin and acetic acid; whereas negative for pyruvic acid, alanine, pyruvatic acid methyl ester, thymidine, glutamic acid, AY-hydroxybutyric acid, adenosine, thymidine-5'-Monophosphate, succinic acid mono-methyl ester and D-lactic acid methyl ester (Biolog GP2 MicroPlate system; BIOLOG, USA).

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