Results 11 to 20 of about 3,922 (190)
Age-dependance of pteridines in the malaria vector, Anopheles stephensi
Pteridines, 2017 Determining the accurate age of malaria vectors is crucial to measure the risk of malaria transmission. A group of fluorescent chemicals derived from a pyrimidine-pyrazine ring structure known as pteridines from the head, thorax and whole body of adult ...
Edalat Hamideh +2 more
doaj +2 more sources
Pteridines, 1989 Urinary excretion levels of five pteridines in healthy cats and dogs and in 14 groups of animals with tumours or virus infections were determined by HPLC after partial purification by ion exchange chromatography.
Goldberg M. +2 more
doaj +2 more sources
Pteridines, 2004 2,4-Disubstituted pteridine derivatives (1-3) react with acyl radicals very selectively in position 7 by a nucleophilic Substitution mechanism (4-10).
Döring Thomas +2 more
doaj +2 more sources
A Twenty Year Association with Pteridines - Chemistry, Biochemistry and Molecular Biology
Pteridines, 1998 The author has summarised the science in his published works which contained chemistry. biochemistry and molecular biology related to pteridines as a dedication to Professor Wolfgang Pfleiderer on the occasion of his seventieth birthday.
Armarego Wilfred L. F.
doaj +2 more sources
Prospects for the use of sulfur-containing pteridines in toxic liver damage [PDF]
Regulatory Mechanisms in BiosystemsThe presented material describes the results of the purposeful search for the novel hepatoprotective agents among synthetic sulfur-containing pteridines. The studied compounds were obtained using previously described synthetic procedures.
N. Lohvinenko +7 more
doaj +2 more sources
Folate, neopterin and kynurenine pathway in patients with statin therapy
Pteridines, 2016 Statins, widely used antihyperlipidemic drugs, also have immunomodulatory properties independent from their lipid lowering effect. Even with slight modulations in the immune system, pteridine levels can display changes.
Palabiyik Saziye Sezin +9 more
doaj +2 more sources
Pteridines, 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 +2 more sources
An Overview of Pterin Analysis in Biological Samples: From Occurrence and Properties to Sample Pretreatment Combined With Hyphenated Separation Techniques. [PDF]
J Sep SciABSTRACT Pterins are a structurally diverse group of biologically active compounds within the pteridine family, with key roles in pigmentation, redox metabolism, light sensing, and cellular signaling across a wide range of organisms. Their quantification in biological samples is analytically demanding due to their high polarity, chemical instability ...
Brejcha J, Bosakova Z.
europepmc +2 more sources
The biosynthesis of riboflavin and related pteridines [PDF]
, 1961 The evidence in the literature relating to the biosynthesis of riboflavin and of other simpler pteridines is reviewed. Possible intermediates in the transformation of purines into pteridines are discussed and the chemistry of some of these compounds has ...
Neilson, Thomas
core +7 more sources
Chemical studies of 8-substituted pteridines [PDF]
, 1964 An account is given of the methods which are at present available for the aynthesis of 8-substituted pteridines and the closely allied 9-substituted isoalloxazine derivatives.
Rowan, Thomas
core +7 more sources