Results 61 to 70 of about 4,011 (296)
Xanthines as a scaffold for molecular diversity [PDF]
, 2018 Summary: Xanthines represent a new, versatile scaffold for combinatorial chemistry. A five-step solid-phase synthesis of xanthine derivatives is described which includes alkylations, a nucleophilic displacement reaction at a heterocycle and a ring ...
Eberle, Alex, Heizmann, Gerhard
core
HPLC-MS/MS Quantification of Flavan-3-ols, Xanthines, and Epigallocatechin-3-Gallate Oxidation Products in Tea Samples and New Insights into Their Cytotoxicity [PDF]
, 2022 Infusions of the tea plant Camellia sinensis L. have been intensively studied regarding their constituents and especially their bioactivity. While the compound classes of catechins and xanthines are strongly associated with tea, tea consumption as a ...
Uta Kampermann +5 more
core +1 more source
Advanced Science, EarlyView.An integrated probiotic system is engineered to execute a programmed therapeutic cascade against inflammatory bowel disease. Upon pathological signals, the system sequentially performs ROS scavenging, tungsten release, and selective pathogen suppression, thereby breaking the oxidative stress–dysbiosis cycle to remodel gut microbiota and reinforce ...
Yang Yang +8 more
wiley +1 more source
THE STUDY OF HYPOGLYCEMIC ACTIVITY OF 3-BENZYL-8-METHYLXANTHINE DERIVATIVES
Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2015 Diabetes mellitus is a chronic endocrine disease. It etiology is the impact of both endogenous (genetic) and exogenous factors that cause absolute or relative shortage of insulin or not effective use of it, which in turn leads to disruption of all kinds ...
I. М. Bilay +6 more
doaj +1 more source
Absence of xanthine oxidase or xanthine dehydrogenase in the rabbit myocardium [PDF]
Biochemical and Biophysical Research Communications, 1986 We directly measured the activity of the enzymes xanthine oxidase and xanthine dehydrogenase in rabbit and rat hearts, using a sensitive radiochemical assay. Neither xanthine oxidase activity nor xanthine dehydrogenase activity was detected in the rabbit heart.
Grum, Cyril M. +3 more
openaire +2 more sources
Advanced Science, EarlyView.An STI‐guided metagenomic association framework links soybean salt‐tolerance phenotypes with rhizosphere microbiome composition and network organization in natural saline soils. The approach identifies candidate beneficial taxa, including Thalassospira xiamenensis, and provides an efficient strategy for mining stress‐protective microbes from native ...
Yu Luo +3 more
wiley +1 more source
CAQ Corner: Basic concepts of transplant immunology
, 2022 Liver Transplantation, EarlyView.
Amanda Cheung, Josh Levitsky
wiley +1 more source
Molecules, 2019 8-Arylethynylxanthine derivatives are potent, selective adenosine A2A receptor antagonists, which represent (potential) therapeutics for Parkinson’s disease, Alzheimer’s dementia, and the immunotherapy of cancer.
Daniel Marx +3 more
doaj +1 more source
The Role of Xanthine Oxidase and Xanthine Dehydrogenase in Skin Ischemia [PDF]
Journal of Surgical Research, 1994 The importance of sequential events which lead to skin necrosis has significant implications in trauma, vascular injury, and wound healing. In this series of experiments, we tested the hypothesis that xanthine oxidase (XO) activity was increased along an ischemic gradient of a skin flap and that the XO enzyme activity correlated with an increase in ...
Rees, Riley S. +6 more
openaire +3 more sources
Advanced Science, EarlyView.We have shown that both simulated and actual spaceflight contribute to cartilage degradation in the knees of mice. Using RNA sequencing and bioenergetic profiling, we identified NADPH oxidase 4 (NOX4) as a key factor driving these changes. Additionally, we found that kaempferol, a naturally occurring flavonoid that binds directly to NOX4, reduces ...
Yuesong Yin +23 more
wiley +1 more source