Results 31 to 40 of about 6,178 (219)
Pteridine levels and head weights are correlated with age and colony task in the honey bee, Apis mellifera [PDF]
PeerJ, 2016 Background. The age of an insect strongly influences many aspects of behavior and reproduction. The interaction of age and behavior is epitomized in the temporal polyethism of honey bees in which young adult bees perform nurse and maintenance duties ...
Frank D. Rinkevich +4 more
doaj +2 more sources
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
core
International Journal of Dermatology, EarlyView.Conventional dermoscopy provided higher scores than ultraviolet‐induced fluorescence dermoscopy for parallel furrow pattern, parallel ridge pattern (PRP), fibrillar pattern, dots/clods, radial lines, blue–white structureless areas and blotch, and outperformed sub‐ultraviolet reflectance dermoscopy (sUVRD) for PRP and blue–white structureless areas ...
Handan Merve Erol Mart +3 more
wiley +1 more source
Pteridines, 1993 In order to carry out a genetic and biochemical analysis of pteridin pathway eye colour loci, sixteen strains of five eye colour mutants of Drosophila melanogaster (2 dke, 7 sf. 3 se, 3 Hnr and 1 bw) from natural populations were used.
Millán J.M., Nájera C.
doaj +1 more source
Free amino acids in a cave beetle \u3cem\u3eDarlingtonea kentuckensis\u3c/em\u3e Valentine (Coleoptera: Carabidae) [PDF]
, 1974 Free amino acids of Darlingtonea kentuckensis were investigated by two-dimensional, thin-layer chromatography on Silica Gel G. Thirteen amino acids which could be identifìed (alanine, glutamic acid, glycine, histidine, isoleucine and/or leucine, lysine ...
Sperka, R. J.
core +2 more sources
Photochemistry and Photobiology, EarlyView.Alloxazine photosensitizers, molecularly engineered through sugar conjugation and methoxy substitution to enhance solubility, photodynamic potency, and fluorescence, enable image‐guided photodynamic therapy while inhibiting cancer cell growth in the absence of photoactivation.
Rubej R. Khan +7 more
wiley +1 more source
CNS Neuroscience &Therapeutics, Volume 32, Issue 5, May 2026.This study integrated bioinformatics analysis, cellular models, and PD/constipation mouse models to identify SHMT2 as a key shared biomarker linking Parkinson's disease and constipation. SHMT2 upregulation was validated in dopaminergic neurons and the enteric nervous system, highlighting its potential role in gut–brain axis dysfunction.
Jiehua Su +10 more
wiley +1 more source
First Synthesis of a Representative, Natural Pterin Glycoside: 2’-O-(α-D-Glucopyranosyl)biopterin [PDF]
, 2009 Glycosylation of N(2)-(N,N-dimethylaminomethylene)-1’-O-(4-methoxybenzyl)-3-[2-(4-nitrophenyl) ethyl]biopterin (14) with the novel donor 4,6-di-O-acetyl-2,3-di-O-(4-methoxybenzyl)-α-D-glucopyranosyl bromide (19) in the presence of silver triflate and ...
Hanaya, Tadashi +2 more
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Optimized Analytical Procedures for the Untargeted Metabolomic Profiling of Human Urine and Plasma by Combining Hydrophilic Interaction (HILIC) and Reverse-Phase Liquid Chromatography (RPLC)-Mass Spectrometry. [PDF]
, 2015 Profiling of body fluids is crucial for monitoring and discovering metabolic markers of health and disease and for providing insights into human physiology.
Contrepois, Kévin +2 more
core +1 more source
Prospects for the use of sulfur-containing pteridines in toxic liver damage
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 +1 more source