Results 21 to 30 of about 8,420 (250)
The role of urinary pteridines as disease biomarkers
Pteridines, 2017 Pteridines and their derivatives function as intermediates in the metabolism of several vitamins and cofactors, and their relevance to disease has inspired new efforts to study their roles as disease biomarkers.
Burton Casey, Ma Yinfa
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Allergology International, 2019 Background: Pteridines are metabolites of tetrahydrobiopterin, which serves as co-enzyme of nitric oxide synthase. We sought to investigate the usefulness of pteridines as biomarkers for childhood asthma control.
Saki Kasuga +10 more
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Pteridines, 1995 Unconjugated pteridines are present in fungi, algae and plants. However, the functions of pteridines in these organisms are not thoroughly investigated. The biosynthesis follows the same steps as were shown for animals and eubacteria.
Maier Josef +2 more
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Exploring the scope of DBU-promoted amidations of 7-carboxymethyl-pterin [PDF]
, 2020 Pteridines are an important heterocycle often used in the development of pharmaceutically relevant compounds, and in the field of supramolecular chemistry.
Bockman, Anna
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Influence of Neopterin on Ciliary Beat Frequency of Human Nasal Epithelial Cells in vitro
Pteridines, 2008 Acute infectious diseases of the respiratory tract are regularly associated with increased concentrations of neopterin in serum and/or urine. Most likely, the pteridine compound is not only a marker of an activated cellular immune system but may exert ...
Neher Andreas +5 more
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Pteridines and Lipid Metabolism
Pteridines, 1998 The effect of 9 different pteridines on fatty acid incorporation into phospholipids as well as on cholesterol and phospholipid content was compared in vitro using rat liver homogenate, Krebs-Ringer phosphate buffer containing 0.3 % albumin (pH=7.4 ...
Rudzite Vera +5 more
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Pteridine-2,4-diamine derivatives as radical scavengers and inhibitors of lipoxygenase that can possess anti-inflammatory properties [PDF]
, 2015 BACKGROUND: Reactive oxygen species are associated with inflammation implicated in cancer, atherosclerosis and autoimmune diseases. The complex nature of inflammation and of oxidative stress suggests that dual-target agents may be effective in combating ...
Hadjipavlou-Litina, D +4 more
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Pteridines, 1991 The electronic absorption. fluorescence excitation, and fluorescence emission spectra of a series of pteridines (lumazine, xanthopterin, isoxanthopterin, biopterin) and riboflavin (vitamin B2) were measured at room temperature (298 K) in a number of ...
Aaron J.-J. +8 more
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Pteridines, XCVI. Synthesis and Reactions of 6-(1,2,3-Trihydroxypropyl)pteridines
Pteridines, 1990 Various hydropyrano [3.2-g] pteridines (7, 10, 12, 21 , 33) were oxidized to the corresponding 6-(1,2,3- trihydroxypropyl)pteridine derivatives (8,9, 11, 13,32, 34), which are valuable intermediates for the synthesis of new 6-substituted pteridines (15 -
Soyka Rainer, Pfleiderer Wolfgang
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Blocked dihydropteridines as nitric oxide synthase activators [PDF]
, 2010 It has been shown that 6-acetyl-7,7-dimethyl-5,6,7,8-tetrahydropteridin-4(3H)-one can act as a competent cofactor for the production of nitric oxide by neuronal nitric oxide synthase (nNOS).
Daff, Simon +5 more
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