Results 1 to 10 of about 9,956 (243)
Biosynthesis of Pteridines in Insects: A Review [PDF]
InsectsPteridines 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 +3 more sources
Data on urinary pteridines as a discriminator of atherosclerotic risk in patients with diabetes [PDF]
Data 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
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
doaj +2 more sources
Urinary pteridines as a discriminator of atherosclerotic risk in patients with diabetes [PDF]
Atherosclerosis 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 +2 more sources
Colour Confusion: Reviewing Ambiguities in the Identification and Classification of Chromatophore Deficiencies Among Amphibians. [PDF]
Ecol EvolThe colour of amphibian skin and eyes is the result of light interacting with multiple chromatophores (xanthophores, iridophores and melanophores), leading to challenges when trying to identify which of these cells are involved in colour abnormalities.
Gould J.
europepmc +2 more sources
Pteridines, 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, 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, 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
Pigments, Chromatophore Structure, and Gene Expression Underlying Colour Polytypy of a Panamanian Poison Frog. [PDF]
Mol EcolABSTRACT Colour polytypism represents an example of phenotypic diversification shaped by genetic divergence and ecological pressures. Poison frogs of the genus Oophaga (Dendrobatidae) are highly polytypic in coloration, making them an ideal system for investigating the genetic and physiological basis of colour variation.
Mantzana-Oikonomaki V +7 more
europepmc +2 more sources
Highly Efficient Generation of Germline Mutations Using CRISPR/Cas9 in the Speckled Wood Butterfly <i>Pararge aegeria</i>. [PDF]
Ecol EvolWe demonstrate the efficient use of CRISPR/Cas9 to generate germline loss‐of‐function (LOF) mutations in the speckled wood butterfly (Pararge aegeria), an ecological model species. Targeting the yellow‐y gene, we achieved nearly 80% mosaic LOF phenotypes in adults and high germline mutation rates in offspring.
Shoshan AB +3 more
europepmc +2 more sources