Results 61 to 70 of about 4,628 (262)

Tetrahydrobiopterin analogues with NO-dependent pulmonary vasodilator properties [PDF]

, 2011
Reduced NO levels due to the deficiency of tetrahydrobiopterin (BH4) contribute to impaired vasodilation in pulmonary hypertension Due to the chemically unstable nature of BH4 it was hypothesised that oxidatively stable analogues of BR, would be able to ...
Gibson, Colin, Kunuthur, S. P., Milliken, P. H., Suckling, C. J., Wadsworth, R. M.   +4 more
core   +1 more source

Tetrahydrobiopterin (Bh4) deficiencies: diagnosis and treatment

Acta Pediátrica de México, 2014
Tetrahydrobiopterin (BH4) is an enzyme cofactor of phenylalanine hydroxylase, tyrosine hydroxylase and tryptophan hydroxylase. Three different enzymes affect BH4 synthesis: guanosine triphosphate cyclohydrolase I (GTP CH 1), 6-piruvoil tetrahydropterin ...
Mercedes Martínez-Pardo
doaj   +1 more source

Ultraviolet-induced fluorescent imaging for millipede taxonomy [PDF]

Research Ideas and Outcomes, 2017
Fluorescent imaging has been traditionally applied to cell biology, and more recently to entomology to capture microscopic images of insect anatomy. However, the technique has not been applied to the study of millipedes, most of which autofluoresce as a ...
Paul Marek
doaj   +2 more sources

Recent Progress in CO2 Conversion: An Overview of Catalytic Strategies for Sustainable Fuel and Chemical Synthesis

SmartMat, Volume 6, Issue 6, December 2025.
This review systematically outlines recent advances in the catalytic strategies for converting CO₂ into valuable products, including photocatalysis, electrocatalysis, CO2 hydrogenation, photothermal catalysis, non‐thermal plasma, and biocatalytic processes.
An Zhang, Yanming Cai, Liang Guo, Chao Wang, Qingbo Wa, Yanping Xu, Jian Zhou, Hongshuang Fan, Ziyun Li, Xinyue Long, Jiabei Tang, Zijian Li, Li Zhai, Zhenyu Shi, Wei Zhai, Yuhui Tian, Shuai Bi, Hao Wei, Mingliang Hu, Yang Xu, Yiran Zhang, Yu Zhang, Ruiying Ding, Junjun Li, Shuangqun Chen, Jianfeng Huang, Zhanxi Fan, Xingchen Jiao, Guigao Liu, Haiqing Wang, Haifeng Tian, Jingyu Pang, Kuncheng Zhang, Weisong Liu, Huijuan Cui, Lingling Zhang, Xiaofu Sun, Jianling Zhang, Dan Ren, Sheng Zhang, Lu Qiao, Zhe Weng, Hongmei Li, Min Liu, Miao Zhong, Lei Wang, Jun Gu, Hao Bin Wu, Bolong Huang, Weijia Zhou, Chuan Xia, Min‐Rui Gao, Changbin Zhang, Rong Cao, Wei Chen, Yuan‐Biao Huang, Yongye Liang, Ya‐Qian Lan, Guoxiong Wang, Baoyu Xia, Yujie Xiong, Xinbin Ma, Tongbu Lu, Jinhua Ye, Yi Xie, Buxing Han, Jiawei Liu, Zhicheng Zhang, Hua Zhang   +68 more
wiley   +1 more source

Molecular characterization of the genes encoding the tungsten-containing aldehyde ferredoxin oxidoreductase from Pyrococcus furiosus and formaldehyde ferredoxin oxidoreductase from Thermococcus litoralis [PDF]

, 1995
The hyperthermophilic archaea Pyrococcus furiosus and Thermococcus litoralis contain the tungstoenzymes aldehyde ferredoxin oxidoreductase, a homodimer, and formaldehyde ferredoxin oxidoreductase, a homotetramer.
Adams, Michael W. W., Chan, Michael K., Kelley-Crouse, Terry L., Kletzin, Arnulf, Mukund, Swarnalatha, Rees, Douglas C.   +5 more
core   +2 more sources

In Vivo Biosynthesis and Direct Incorporation of Noncanonical Amino Acids into Proteins

ChemBioChem, Volume 26, Issue 22, November 17, 2025.
This review evaluates engineered (semi)autonomous cell systems for the biosynthesis and incorporation of noncanonical amino acids (ncAAs) into proteins. While semi‐autonomous cells convert supplied precursors into ncAAs autonomous cells integrate biosynthetic pathways that produce these building blocks intracellularly.
Jan Hendrik Illies, Tim Moritz Weber, Ivana Drienovská   +2 more
wiley   +1 more source

Investigation of Spectra and Ionization Constants of 8-Alkyl Pterins by Fluorimetry

Pteridines, 1993
Spectrofluorimetric studies of the properties of 8-alkyl-pterins arc reported, together with preliminary results on the use of fluorimetry in studying the binding of these new mechanism-based substrates to dihydrofolate reductase (DHFR).
Jeong Soon-Seog, Wormell Paul, Gready Jill E.   +2 more
doaj   +1 more source

Pterins as Sensors of Response to the Application of Fe3+-Dextran in Piglets

Sensors, 2010
The aim of the presented study was to assess the effect of a single administration of Fe3+-dextran on immune cell counts and pterin biomolecule production as novel sensors of the piglets' immune system activation, and to determine concentrations of ...
Klara Breinekova, Martin Svoboda, Miriam Smutna   +2 more
doaj   +1 more source

Fluorescence-based characterisation of selected edible insect species: Excitation emission matrix (EEM) and parallel factor (PARAFAC) analysis

Current Research in Food Science, 2021
Fluorescence spectroscopy coupled with chemometric tools is a powerful analytical method, largely used for rapid food quality and safety evaluations. However, its potential has not yet been explored in the novel food sector.
G. Rossi, J. Durek, S. Ojha, O.K. Schlüter   +3 more
doaj   +1 more source

Applications of QSPR and Machine Learning in Molecular Photonics

Advanced Optical Materials, Volume 13, Issue 33, November 25, 2025.
Quantitative structureproperty relationships (QSPR) and machine learning (ML) are transforming photochemistry by enabling pre‐synthetic screening of photoactive molecules. This review outlines advances in data‐driven discovery of optical materials and functional dyes, identifies effective descriptors and models for photophysical processes, and provides
Andrey A. Buglak, Platon P. Chebotaev, Mikhail A. Filatov   +2 more
wiley   +1 more source