Results 181 to 190 of about 3,128,275 (354)
Cell Membrane Vesicle Camouflaged Artificial Cells
Advanced Functional Materials, EarlyView.Artificial cells camouflaged with a cell membrane vesicle coating are able to assemble into synthetic aggregates that exhibit rudimentary communication capabilities. Additionally, when these artificial cells are equipped with antioxidant capabilities, they are able to protect the intracellular homeostasis in HepG2 cells present in semi‐synthetic ...
Paula De Dios Andres +11 more
wiley +1 more source
H2O2‐Generating Advanced Nanomaterials for Cancer Treatment
Advanced Functional Materials, EarlyView.H2O2‐generating nanoplatforms can exploit tumor redox imbalance for O2 and toxic reactive oxygen species generation, leading to hypoxia reversal, and apoptosis of cancer cells, respectively. This review highlights the mechanisms of these nanoplatforms, including exogenous H₂O₂ delivery, endogenous amplification, and metal peroxides, which leads to ...
Kiyan Musaie +8 more
wiley +1 more source
Hyperoxia Causes Mitochondrial Fragmentation in Pulmonary Endothelial Cells by Increasing Expression of Pro-Fission Proteins [PDF]
, 2018 Objective—We explored mechanisms that alter mitochondrial structure and function in pulmonary endothelial cells (PEC) function after hyperoxia. Approach and Results—Mitochondrial structures of PECs exposed to hyperoxia or normoxia were visualized and ...
Audi, Said H. +11 more
core +1 more source
Advanced Healthcare Materials, EarlyView.The PVA‐GA hydrogel is formed through hydrogen bonding between PVA hydroxyl groups and GA galloyl units, enabling sustainable GA release and its extended biological activity. The hydrogel scavenges ROS to reduce oxidative stress, preventing mitochondrial damage from excessive ROS, mitigating hADSC senescence, and preserving VEGF secretion, offering a ...
Yiduo Zhou +11 more
wiley +1 more source
High nucleotide skew palindromic DNA sequences function as replication origins due to their unzipping propensity [PDF]
arXivLocations of DNA replication initiation in prokaryotes, called "origins of replication", are well-characterized. However, a mechanistic understanding of the sequence-dependence of the local unzipping of double-stranded DNA, the first step towards replication initiation, is lacking.
arxiv
Mitochondrial DNA Repair [PDF]
, 2011 Each mitochondrion consists of 16,569 base pairs which encodes 37 genes, all of which are essential for normal mitochondrial function (Anderson et al., 1981). Each human cell contains several hundred copies of mitochondrial DNA, encoding 13 genes that are required for oxidative phosphorylation, 22 transfer RNAs and 2 ribosomal RNAs (Anderson et al ...
openaire +3 more sources
Advanced Healthcare Materials, EarlyView.This perspective provides an overview of the growing interest in utilizing various gasotransmitters—small gaseous signaling molecules namely nitric oxide (NO), carbon monoxide (CO), and hydrogen sulfide (H2S)—for several therapeutic applications, with emphasis on the potential use of porous materials as carriers to provide safe and controlled local ...
Rosana V. Pinto +2 more
wiley +1 more source
Harnessing Nanohybridized Niclosamide for Precision Mpox Therapeutics
Advanced Healthcare Materials, EarlyView.This study investigates the potential of nanohybridized niclosamide as a therapeutic agent for Mpox, focusing on enhanced bioavailability, improved antiviral efficacy, and controlled drug release achieved through nanoengineering. The research emphasizes significant advancements in formulation strategies, mechanistic insights, and therapeutic outcomes ...
N. Sanoj Rejinold +2 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.Negative‐ and positive‐staining TEM is essential for rapid nanometer‐resolution characterization of organic specimens ranging from nanoparticles to cells. Uranyl salts are widely used negative‐/positive‐stains but are radioactive and highly toxic to users and the environment.
Vera M. Kissling +4 more
wiley +1 more source
Hyperoxia activates ATM independent from mitochondrial ROS and dysfunction
Redox Biology, 2015 High levels of oxygen (hyperoxia) are often used to treat individuals with respiratory distress, yet prolonged hyperoxia causes mitochondrial dysfunction and excessive reactive oxygen species (ROS) that can damage molecules such as DNA.
Emily A. Resseguie +3 more
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