Results 41 to 50 of about 58,088 (256)

Intrinsically Mitochondria‐Targeting Nanozyme via Coordination‐Assembly of Natural Quercetin for Cascade Antioxidant Therapy of Cerebral Ischemia‐Reperfusion Injury

Advanced Science, EarlyView.
This study uncovers that quercetin naturally targets mitochondria. By coordinating quercetin with Fe3+, we engineer an ultrasmall cascade nanozyme (MCN) with superoxide dismutase‐catalase activities. MCN crosses the damaged blood–brain barrier, scavenges mitochondrial ROS, prevents mitochondrial DNA leakage, and blocks the cGAS‐STING pathway, thereby ...
Wenxuan Zheng, Zhicheng Wang, Xin Zhou, Shuya Wang, Xiaojing Shi, Tingli Xiong, Ruishi Li, Yuting Lin, Zhen Chen, Jiawen Wei, Fei Li, Jinwen Ge, Kelong Ai, Chong Liu, Guiming Deng   +14 more
wiley   +1 more source

Synthesis and physical-chemical properties of 8-bromo-3-methyl-7-α-methylbenzylxanthine derivatives

Фармацевтичний журнал, 2018
The level of modern pharmaceutical science development is determined by the introduction in medical practice of new effective and non-toxic drugs. The problem of new drugs search depends on the presence in the arsenal of pharmacologists significant ...
D. G. Ivanchenko
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., Ragsdale, Richard A., Ketai, Loren H., Shlafer, Marshal   +3 more
openaire   +2 more sources

Vascularized Liver‐on‐a‐Microsphere Reveals Alanine‐Glucose Metabolism‐Driven Regulation of Liver Function and Injury

Advanced Science, EarlyView.
A vascularized liver‐on‐a‐microsphere system is developed to recreate lobule‐like cellular organization and endothelial barrier function within compartmentalized hydrogel particles. The platform enhances hepatic performance and reveals alanine‐glucose cycle activation linked to improved detoxification capacity, offering a high‐throughput microscale ...
Jingyang Li, Zengnan Wu, Yingrui Zhang, Shulang Chen, Yongning Lin, Shiyu Chen, Tong Xu, Xianli Meng, Yi Zhang, Jin‐Ming Lin   +9 more
wiley   +1 more source

CAQ Corner: Basic concepts of transplant immunology

, 2022
Liver Transplantation, EarlyView.
Amanda Cheung, Josh Levitsky
wiley   +1 more source

Synthesis, physical-chemical and biological properties of 7-benzyl-3-methyl-8-thioxanthine derivatives

Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2017
Introduction . Interest to the problem of creating new effective antimicrobial agents among xanthine derivatives does not decrease. Primarily, this is due to the increasing of microbial resistance to conventional antimicrobial agents and the emergence of
D. H. Ivanchenko, M. I. Romanenko, O. M. Kamyshnyi, N. M. Polishchuk, K. V. Aleksandrova   +4 more
doaj   +1 more source

Multi‐Component Functionalized Bifidobacterium Longum Hydrogel for Multi‐Target Integrated Therapy of Colitis‐Associated Anxiety and Depression

Advanced Science, EarlyView.
A pH/MMP dual‐responsive Bifidobacterium longum (BL) hydrogel (INPs@BL@Gel) functionalized with baicalin, tyrosine, and inulin is constructed. It enables gastric protection, inflammation‐targeted release, and prolonged intestinal colonization. By remodeling gut microbiota, elevating beneficial neuroactive metabolites (homovanillic acid, short‐chain ...
Shuo Zhang, Yujie Zhang, Jiansheng He, Shunlian Li, Qingyan Ma, Qiao Li, Yudan Zhang, Yiyang Wang, Shaobo Ma, Songyan Jin, Chune Li, Xueyong Xie, Hang Zhang, Junze Deng, Xueqin Song, Daocheng Wu, Xiancang Ma, Feng Zhu   +17 more
wiley   +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., Smith, Del, Li, Ti Dong, Cashmer, Belinda, Garner, Warren L., Punch, Jeffrey D., Smith, Jr. , David J.   +6 more
openaire   +3 more sources

Nano‐Backpack Engineered Probiotics with Reactive Oxygen Species–Responsive Tungsten Release for Synergistic Therapy of Inflammatory Bowel Disease

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, Liucan Wang, Guoqing Chen, Yuanling Zhang, Jiarui Shi, Wenzhe Fan, Min Yu, Jixi Zhang, Hua Yang   +8 more
wiley   +1 more source

MOCOS‐associated renal syndrome in a Brown Swiss cattle

Journal of Veterinary Internal Medicine, 2023
Background A recessive form of MOCOS‐associated xanthinuria type II is described in Tyrolean grey cattle. A similar case was identified in a 5‐month‐old Brown Swiss calf with hoof overgrowth, rough coat, urine sediment, and pneumonia.
Joana G. P. Jacinto, Leonore Bettina Küchler, Laureen M. Peters, Elke Van der Vekens, Corinne Gurtner, Franz R. Seefried, Mireille Meylan, Cord Drögemüller   +7 more
doaj   +1 more source