Results 21 to 30 of about 2,236 (202)
Two Cases of 6-Pyruvoyl Tetrahydropterin Synthase Deficiency: Case Report and Literature Review
Children, 2023 6-pyruvoyl tetrahydropterin synthase deficiency (PTPSD) is a rare neurometabolic disease that can be diagnosed in newborn screening (NBS) and is part of the family of tetrahydrobiopterin deficiency disorders (BH4Ds). It is essential to diagnose and treat
Lucia Maria Sur +4 more
doaj +1 more source
Pterins as diagnostic markers of mechanical and impact-induced trauma: A systematic review [PDF]
, 2022 We performed a systematic review of the literature to evaluate pterins as biomarkers of mechanical and impact-induced trauma. MEDLINE and Scopus were searched in March 2019.
Baxter-Parker G +2 more
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The urinary biopterin in autism spectrum disorder
Pteridines, 2021 The aim of the study was to determine whether biopterin is present in significantly lower quantities in urine samples of patients with autism spectrum disorder (ASD) compared to healthy individuals.
Waligóra Aleksandra +4 more
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Selective Preparation of 6- and 7-(Polyhydroxypropyl)pterins from Pentos-2-uloses [PDF]
, 2014 The Gabriel-Isay condensation of three types of pentos-2-uloses with 2,5,6-triaminopyrimidin-4(3H)-one (3) was examined under both acidic and basic conditions. The condensation of 5-deoxy- and 5-O-protected pentofuranos-2-uloses with 3 at pH 8 afforded 6-
Ito, Kasumi, Hanaya, Tadashi
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Molecules, 2023 In humans, tetrahydrobiopterin (H4Bip) is the cofactor of several essential hydroxylation reactions which dysfunction cause very serious diseases at any age.
Ayoub Boulghobra +7 more
doaj +1 more source
Electron Transfer Initiated Reactions Photoinduced by Pterins [PDF]
, 2021 Interest in the photochemistry and photophysics of pterins has increased since the participation of this family of compounds in different photobiological processes has been suggested or demonstrated in recent decades.
Lorente, Carolina +4 more
core
Journal of Biological Chemistry, 1972 Abstract Qualitative and quantitative analyses for pterins (derivatives of 2-amino-4-hydroxypteridine) in human urine were carried out by an improved procedure which involved the use of two new weak ion exchangers, ECTEOLA-Sephadex and phospho-Sephadex.
T, Fukushima, T, Shiota
openaire +2 more sources
Comparative routes to 7-carboxymethyl-pterin: A useful medicinal chemistry building block
Pteridines, 2022 Pterins, such as folate and biopterin, and their derivatives hold significant importance given their biological relevance, as well as the numerous pterin-based inhibitors developed for targeting various biological targets. For this reason, pterins can be
Bennett Zachary +2 more
doaj +1 more source
Modulation of Free Radical Formation by Pterin Derivatives
Pteridines, 2004 All classes of pterins, fully reduced tetrahydropterins, aromatic pterins and dihydropterins have been investigated upon their effects on radical mediated reactions.
Karl Oettl +2 more
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Journal of Biological Chemistry, 1959 Publisher Summary This chapter describes the bacterial pterin deaminase. In the standard assay, the mixture contains 0.05 ml of pterin carboxylic acid, 0.8 ml of phosphate buffer, and 0.02 to 0.15 ml of enzyme in a final volume of 1.0 ml. Incubation is carried out at 23° in a 1-ml Beckman quartz cuvette with a light path of 1.00 cm. Reaction is begun
B, LEVENBERG, O, HAYAISHI
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