Results 81 to 90 of about 4,011 (296)
Scientific Reports, 2021 Kombucha is a beverage made by fermenting sugared tea using a symbiotic culture of bacteria belonging to the genus Acetobacter, Gluconobacter, and the yeasts of the genus Saccharomyces along with glucuronic acid, which has health-promoting properties ...
Aleksandra Ziemlewska +5 more
doaj +1 more source
Advanced Science, EarlyView.PTEN knockdown activates AKT phosphorylation, promoting Nrf2 nuclear translocation and STAT3 activation, which upregulates GPX4 and antioxidant enzymes HO‐1, SOD1, SOD2, and NQO1. These coordinated changes reduce lipid peroxidation and ROS, inhibit ferroptosis, and ultimately ameliorate cognitive impairment in APP/PS1 transgenic mice, highlighting a ...
Da‐Wei Wang +5 more
wiley +1 more source
Synthèse de nouvelles xanthines, dérivées de 2-amino-2-oxazolines, antagonistes potentiels des récepteurs de l'adenosine [PDF]
, 2005 Ce travail de thèse nous a permis de synthétiser un grand nombre de nouveaux dérivés de type 1- ou 3-[2-hydroxy-3-aryloxypropyl]xanthines. Ces composés ont été obtenus à partir d'un synthon original de type amidine, les 2-amino-2-oxazolines.
JARRY, Christian, MASSIP, Stéphane
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Antioxidant effect of naturally occurring xanthines on the oxidative damage of DNA bases [PDF]
, 2017 The repair of the oxidised radicals of adenine and guanosine by several naturally occurring xanthines was studied. Each pair of DNA purine/xanthine was made to react with the sulphate radical and the decrease of the concentration of both compounds was ...
R. M.B. Dias +4 more
core +1 more source
Cafeína: revisão sobre métodos de análise Analytical methods for caffeine
Química Nova, 2007 Gravimetric and Bailey-Andrew methods are tedious and provide inflated results. Spectrofotometry is adequate for caffeine analysis but is lengthy. Gas chromatography also is applied to the caffeine analysis but derivatization is needed.
Carlos A. B. De Maria +1 more
doaj +1 more source
From Sourcing to End‐of‐Life: Sustainability Challenges and Opportunities in Organic Bioelectronics
Advanced Science, EarlyView.Organic bioelectronics bridges biology and electronics using organic mixed ionic/electronic conductors. This Perspective addresses sustainability across the full lifecycle of organic bioelectronic materials and devices, offering a framework to guide material sourcing, synthesis, fabrication, application, and end‐of‐life strategies toward bioelectronic ...
Gwennaël Dufil +3 more
wiley +1 more source
Separation of xanthines in hydro-organic and polar-organic elution modes on a titania stationary phase. [PDF]
, 2014 International audienceHydrophilic interaction LC was investigated in hydro-organic and nonaqueous elution modes on a titania column by using a set of N-methyl xanthines as neutral polar probes.
Lassalle, Yannick +2 more
core +1 more source
Effects of substituent size upon adenosine receptor A1/A2 affinity of some newly synthesised 8-cycloalkyl xanthines. [PDF]
, 1995 The activity of a series of 1,3-dipropyl-xanthines bearing C8-cycloalkyl substituents as antagonists at A1 and A2 adenosine receptors is examined. Pharmacological results showed that the size of the 8-substituent is an important feature for response in ...
Corsano S +5 more
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SYNTHESIS AND PHYSICAL-CHEMICAL PROPERTIES OF WATER-SOLUBLE 3-BENZYLXANTHINE DERIVATIVES
Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2015 Introduction Nowadays, research of novel biological active compounds with low toxicity, are carried out among different classes of organic compounds of natural and synthetic genesis.
K. V. Аleksandrova +3 more
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Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2015 Aim. Currently, researches, devoted to obtain new active compounds, are carried out among various classes of organic compounds, and combination of several active heterocyclic fragments in one molecule is considered the key way in such researches ...
K. V. Аleksandrova +4 more
doaj +1 more source