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Data on urinary pteridines as a discriminator of atherosclerotic risk in patients with diabetes [PDF]

open access: yesData in Brief, 2022
Presented here are the supplemental data of the research article “Urinary pteridines as a discriminator of atherosclerotic risk in patients with diabetes” [1]. These data provide the first information on variables that affect urinary levels of pteridines
Mikio Marumo   +2 more
doaj   +2 more sources

Pteridines, XCV

open access: yesPteridines, 1989
A series of new amino acid-tetrahydropterin-conjugates has been synthesized starting from N 2-isobutyryl-6,7- dimethyl-5,6,7,8-tetrahydropterin (7). The amino acids have been attached in form of their esters (10 - 16) via a succinyl spacer to the N-5 ...
Lockart Ronan John, Pfleiderer Wolfgang
doaj   +3 more sources

Pteridines CV

open access: yesPteridines, 1995
Treatment of L-biopterin (I) with N,N-dimethyformamide dimethyl- (or diethyl)acetal and then with acetic anhydride in pyridine gave 1',2'-di-O-acetyl-N'-(N,N-dimethylaminomethylene)-L-biopterin (4), which was converted by the Mitsunobu reaction into 3 ...
Hanaya Tadashi   +5 more
doaj   +3 more sources

Pteridines CX

open access: yesPteridines, 1999
A series of new 6-substituted 2,4-diaminopteridines (3-23) and pterins (26-43) have been synthesized by nucleophilic displacement reactions at the side chain of 6-bromomethyl-2,4-diaminopteridine (2) and 6- bromomethylpterin (25) using various types of 0-
Traub Hermann, Pfleiderer Wolfgang
doaj   +2 more sources

Pteridines CIX

open access: yesPteridines, 1998
A simple direct method for the synthesis of lumazine-6,7-diamines (9, 25-27) from uracil-5,6-diamines (10-13) and methyl cyanoformimidate (24) was found.
Abou-Hadeed Khaled, Pfleiderer Wolfgang
doaj   +3 more sources

Biosynthesis of Pteridines in Insects: A Review [PDF]

open access: yesInsects
Pteridines are important cofactors for many biological functions of all living organisms, and they were first discovered as pigments of insects, mainly in butterfly wings and the eye and body colors of insects. Most of the information on their structures
Juan Ferré
doaj   +2 more sources

Pteridine levels and head weights are correlated with age and colony task in the honey bee, Apis mellifera [PDF]

open access: goldPeerJ, 2016
Background. The age of an insect strongly influences many aspects of behavior and reproduction. The interaction of age and behavior is epitomized in the temporal polyethism of honey bees in which young adult bees perform nurse and maintenance duties ...
Frank D. Rinkevich   +4 more
doaj   +3 more sources

Ninth Winter Workshop on Pteridines [PDF]

open access: hybridPteridines, 1989
Blair J. A., Pfleiderer W., Wachter H.
doaj   +2 more sources

Urinary pteridines as a discriminator of atherosclerotic risk in patients with diabetes

open access: yesAtherosclerosis Plus, 2021
Background and aims: We have recently proposed urinary pteridine level as a useful biomarker of oxidative stress in a general population. However, the significance of urinary pteridines in patients with diabetes is unknown.
Mikio Marumo   +2 more
doaj   +1 more source

Analysis of the Influence of Changing and Fixed Temperatures on the Growth and Pteridine Content in the Head of Adults Sarcophaga crassipalpis (Diptera: Sarcophagidae)

open access: yesAnimals, 2023
Flesh flies (Diptera: Sarcophagidae) are regarded as significant in medical and veterinary entomology, and their development models can be utilized as considerable markers to ascertain the minimum postmortem interval (PMImin).
Fernand Jocelin Ngando   +9 more
doaj   +1 more source

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