Results 71 to 80 of about 2,236 (204)
Degeneration of Rat Retina is Paralleled by an Imbalance of the Redox Mechanism of Pteridines
Pteridines, 1996 The RCS rat suffers from a genetic degeneration of retinal cell We have examined the pattern of oxidized and reduced monapterin and biopterin in retinas from RCS retinas and controls.
Cremer-Bartels Gertrud
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Vitamin‐Responsive Disorders: From Molecular Basis to Clinical Presentation and Therapy
Journal of Inherited Metabolic Disease, Volume 49, Issue 4, July 2026.ABSTRACT Vitamin‐dependent cofactors are essential for numerous metabolic reactions, and defects affecting their uptake, conversion, utilisation, or regeneration constitute a heterogeneous group of inherited metabolic disorders (IMDs). Although dietary vitamin intake is sufficient to sustain coenzyme synthesis in healthy individuals, it is insufficient
Cécile Acquaviva +5 more
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Pterin Metabolism In Haemodialysis Patients
Pteridines, 1989 Patients undertaking maintenance haemodialysis may develop a variety of neurological disorders, the most serious of which is aluminium induced encephalopathy.
Altmann Paul +5 more
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The pterin molybdenum cofactors.
Journal of Biological Chemistry, 1992 crassa, demonstrated that the inactive apoprotein of nitrate reductase in extracts of the mutant could be reconstituted by the addition of denatured preparations of purified molybdoenzymes from animal, fungal, or bacterial origin. This crucial finding showed that mol- ybdoenzymes contain a dissociable entity fitting the description of a cofactor and ...
K V, Rajagopalan, J L, Johnson
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Isolation and characterization of new pterins from nonmethanogenic archaebacteria
, 1987 Several new pterins have been discovered in halophilic and thermoacidophilic archaebacteria. Two of these were identified in the extreme halophiles and were thus called halopterins.
Lin, Xinli
core
Cerebrospinal fluid pterins and folates in Aicardi-Goutières syndrome: A new phenotype
, 2003 peer reviewedObjective: To describe three unrelated children with a distinctive variant of Aicardi-Goutières syndrome (AGS) characterized by microcephaly, severe mental and motor retardation, dyskinesia or spasticity, and occasional seizures.
Ramaekers, Vincent +6 more
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Urine pterins and plasma phenylalanine measurements at enrollment in the 4 clinical groups.
, 2015 Units: urine pterins μmol/mmol creatinine; amino acid μM.Median and inter-quartile ranges, p-value Kruskal-Wallis comparison across all 4 groups. BH4 = tetrahydrobiopterin, BH2 = dihydrobiopterin, B0 = biopterin, NH2 = dihydroneopterin, N0 = neopterin.A =
J. Brice Weinberg (271620) +10 more
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Characterization of Underivatized Pterins by Laser Desorption Fourier Transfonn Mass Spectrometry
Pteridines, 1993 Laser desorption FfMS provides a powerful method for examining the structures of underivatized pteridines. (M + Na)+ and (M + K)+ ions are generated by laser desorption and can be used to determine molecular weights. The negative ion spectra provide more
Jacobson K. Bruce, Hettich Robert L.
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Mechanistic Study of ROS-photogeneration by Pterin
Pteridines, 2011 Pterins are widespread in biological systems and possess photosensitizing activities. In the present study, the photosensitization mechanism of acid form of pterin (PTA) and basic form of pterin (PTB) is investigated by means of density functional theory
Ji Hong-Fang, Shen Liang
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A contribution to the chemistry of pterins [PDF]
Proceedings of the Royal Society of London. Series B - Biological Sciences, 1942 Abstract The experiments in this paper have been chiefly concerned with a derivative from pterins, the wing pigments of pierid butterflies. These pigments have become prominent of recent years, partly on account of the prolonged efforts (1925-41) of continental workers to determine their nature.
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