Results 91 to 100 of about 249,924 (296)

A Conserved Isoleucine Gates the Diffusion of CO and O2 to the Active Site of NiFe CO‐Dehydrogenase

Angewandte Chemie, EarlyView.
A combination of protein film electrochemistry and site‐directed mutagenesis shows that isoleucine 563 (numbering of Thermococcus sp. AM4) gates the arrival of both CO and O2 to the active site of the nickel‐iron CO dehydrogenases. Mutations at this position increase the resistance to O2 at the cost of a slower reaction with CO.
Laura Opdam, Marta Meneghello, Chloé Guendon, Jade Chargelègue, Andrea Fasano, Aurore Jacq‐Bailly, Christophe Léger, Vincent Fourmond   +7 more
wiley   +2 more sources

Mitochondria‐Targeted Nanotherapeutics: A Promising Strategy in Modulating Mitochondrial Function, Transfer, and Transplantation

Advanced Science, EarlyView.
This review summarizes the pathogenic role of mitochondria in diseases and highlights mitochondrial transfer and transplantation as emerging therapeutic strategies. It systematically discusses how nanomaterials are engineered to facilitate these processes, and critically examines the current challenges and future perspectives for their clinical ...
Yuanyuan Su, Zhiyan Gong, Jiao Mu, Lili Huang, Pengfei Yang, Chenli Zhang, Lingshan Zhao, Liling Yang, Jun Deng, Xiaohui Liao   +9 more
wiley   +1 more source

Vascular Functions of NADPH Oxidases [PDF]

Hypertension, 2010
NADPH oxidases belong to a group of enzymes that generate reactive oxygen species (ROS) by electron transfer from NADPH to molecular oxygen. The product of this reaction is the superoxide anion (O2−), which undergoes secondary reactions. O2− inactivates NO to yield peroxynitrite and spontaneously or under catalysis of superoxide dismutases reacts to ...
openaire   +2 more sources

Chlorination‐Driven BODIPY Fluorescent Probes for the Selective Monitoring of Myeloperoxidase Activity in Cells and Inflamed Mouse Models

Angewandte Chemie, EarlyView.
A meso‐carboxamide‐substituted BODIPY fluorescent probe reports myeloperoxidase (MPO) activity via electrophilic chlorination by MPO‐derived HOCl, generating a highly emissive chlorinated product with a ca. 40 nm bathochromic shift. Applications in quantitative MPO assays, cellular imaging of MPO‐derived HOCl, redox‐dependent discrimination of cancer ...
Siyoung Cho, Yongyang Luo, Jeehyeon Bae, Youngmi Kim   +3 more
wiley   +2 more sources

Cholesterol: A modulator of the phagocyte NADPH oxidase activity - A cell-free study

Redox Biology, 2014
The NADPH oxidase Nox2, a multi-subunit enzyme complex comprising membrane and cytosolic proteins, catalyzes a very intense production of superoxide ions O2•−, which are transformed into other reactive oxygen species (ROS).
Rawand Masoud, Tania Bizouarn, Chantal Houée-Levin   +2 more
doaj   +1 more source

Molecular Bases and Genetic Design of Rice Disease Resistance for Optimized Yield and Sustainable Agriculture

Advanced Science, EarlyView.
This study integrates rice immune perception, signal transduction, and resistance output into a multi‐omics framework. By combining high‐throughput sequencing, phenomics, and AI‐assisted design with marker‐assisted selection, gene editing, and rapid domestication, we aim to accelerate the precise breeding of disease‐resistant rice varieties by ...
Xinyue Hou, Yuanjiang Cui, Chaoqing Ding, Qian Qian, Deyong Ren   +4 more
wiley   +1 more source

Beyond Conventional: A Review of Phytochemical‐Hydrogel Systems Enhanced by AI and 3D Printing for Chronic Wound Management

Advanced Science, EarlyView.
This review systematically bridges chronic wound pathology with natural phytochemical hydrogel therapeutics. A pathology‐to‐phytochemical mechanistic mapping framework is established, linking specific wound hallmarks to targeted phytochemical interventions.
Yitao Zhou, Xing Liu, Cuiyi Wang, Xiaoxuan Zhao, Pengrun Zhang, Jingjing Gu, Qiuhua Sun, Malcolm Xing, Yeqin Yang   +8 more
wiley   +1 more source

Residual NADPH Oxidase Activity and Isolated Lung Involvement in X-Linked Chronic Granulomatous Disease

Case Reports in Pediatrics, 2012
Chronic granulomatous disease (CGD) is characterized by inherited immune defects resulting from mutations in the NADPH oxidase complex genes. The X-linked type of CGD is caused by defects in the CYBB gene that encodes gp91-phox, a fundamental component ...
Maria J. Gutierrez, George D. McSherry, Faoud T. Ishmael, Alexandra A. Horwitz, Gustavo Nino   +4 more
doaj   +1 more source

ROS/pH‐Responsive Phenylboronic Acid–Chitosan Nanoparticles Improve Silymarin‐Mediated Hepatoprotection After Hepatectomy With Gut‐Liver Axis‐Associated Responses

Advanced Science, EarlyView.
Bioactive phenylboronic acid–chitosan nanoparticles enable responsive silymarin delivery for post‐hepatectomy liver protection. The nanoplatform integrates antioxidant and antibacterial functions, improves hepatic recovery, and is associated with coordinated shifts in gut microbiota, metabolites, cytokines, and hepatic proteomic pathways, suggesting a ...
Jinjin Tong, Chaochao Luo, Zezheng Liu, Xinyan Zhang, Daixu Jia, Yang Sun, Zhaonan Zhang, Haoran Shi, Jianfang Wang, Hua Zhang   +9 more
wiley   +1 more source

α-Lipoic Acid Inhibits Helicobacter pylori-Induced Oncogene Expression and Hyperproliferation by Suppressing the Activation of NADPH Oxidase in Gastric Epithelial Cells

Mediators of Inflammation, 2014
Hyperproliferation and oncogene expression are observed in the mucosa of Helicobacter pylori- (H. pylori-) infected patients with gastritis or adenocarcinoma. Expression of oncogenes such as β-catenin and c-myc is related to oxidative stress.
Eunyoung Byun, Joo Weon Lim, Jung Mogg Kim, Hyeyoung Kim   +3 more
doaj   +1 more source