Results 101 to 110 of about 270,169 (306)

Comparação entre sistemas de degradação de peróxidos em fatias de hipocampo de ratos, glioma de ratos (C6) e neuroblastoma de camundongos (N2a) [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Neurociências, Florianópolis, 2010Estudo comparativo das atividades das enzimas antioxidantes catalase, glutationa peroxidase e ...
Mitozo, Péricles Arruda
core  

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

open access: yesAdvanced 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   +14 more
wiley   +1 more source

The Relationship of HSP-70 with Calcineurin, Sod and Catalase Post-Acute Myocardial Infarction in Wistar Rats Model [PDF]

open access: yes
Background: HSP-70 production increased following myocardial ischemia. HSP-70 helps to reduce infarct area through unclear mechanism. It appears that HSP-70 activates calcineurin and induce antioxidant enzymes such as superoxide dismutase (SOD) and ...
Maria Yolanda Probohoesodo, Maria   +4 more
core   +1 more source

Dinucleotide-binding site of bovine liver catalase mimics a catalase mRNA-binding protein domain [PDF]

open access: yes, 1996
Rat lung contains protein that interacts with catalase mRNA to form specific, redox-sensitive RNA-protein complexes. The studies in this report were aimed at determining whether catalase protein binds its own RNA.
A. Wright, D. Massaro, L. B. Clerch
core   +1 more source

Activity of key enzymes of antioxidant system in rat blood plasma under the effect of histamine and sodium hypochlorite

open access: yesБіологічні студії, 2017
The effects of histamine in 1 mg/kg and 8 mg/kg doses that correspond to the doses causing pathological effects at experimental conditions and of sodium hypochlorite in 5 mg/l dose – the lowest concentration of sodium hypochlorite that affects a body by ...
N. P. Harasym   +6 more
doaj   +1 more source

Engineered Au@CeO2 Hybrid Nanoparticles With Microenvironment Dependent Self‐Adjustability for Integration of Tumor‐Specific Photothermal‐Chemodynamic Therapy and Inflammation Prevention

open access: yesAdvanced Science, EarlyView.
An intelligent Au@CeO2 Hybrid Nanoparticles (ACEF) with microenvironment‐dependent self‐adjustability was engineered to not only perform efficient and tumor‐specific photothermal‐chemodynamic therapy for precise tumor elimination, but also serve as a ROS scavenger in healthy tissues around the tumor to avoid the unexpected oxidative damage and ...
Wenyun Mu   +8 more
wiley   +1 more source

Evaluation of Inflammatory and Oxidative Markers and Their Diagnostic Value in Schizophrenia

open access: yesBrain Sciences
Objective: Schizophrenia is a chronic psychiatric disorder associated with increased oxidative stress. We aimed to investigate serum myeloperoxidase (MPO), catalase (CAT), and malondialdehyde (MDA) levels and their diagnostic value in schizophrenia ...
Mehmet Güneş   +3 more
doaj   +1 more source

A Pathology‐Instructed Theranostic Platform with Mechanoadaptive and ROS‐Powered Nanobreathing Functions for Precision Myocardial Repair

open access: yesAdvanced Science, EarlyView.
We developed a pH responsive theranostic serum albumin hydrogel named BST, functionalized with MRI and CT probes and loaded with mitochondria targeted CAT‐SOD nanogels, that rapidly self repairs and mechanically stabilizes the infarcted myocardium, releases therapeutic nanogels and albumin under hypoxia induced acidosis to clear mitochondrial ROS ...
Zheng Luo   +7 more
wiley   +1 more source

ROS‐Targeted Nanomotor Therapy in OA: Cartilage Protection and Pain Relief

open access: yesAdvanced Science, EarlyView.
ROS‐responsive NM@MET nanomotors utilize elevated ROS in osteoarthritic joints to promote deep penetration into cartilage and synovium and enable sustained metformin release. By scavenging ROS, regulating NRF2/KEAP1 signaling, protecting chondrocytes, suppressing synovial inflammation, and attenuating nociceptive signaling, NM@MET alleviates pain and ...
Meng Zheng   +19 more
wiley   +1 more source

Computation‐Guided Tunnel Engineering Enhances O2 Transport and H2O2 Resistance of Fe(II)/α‐Ketoglutarate‐Dependent Dioxygenases

open access: yesAdvanced Science, EarlyView.
This study presents a computational tunnel engineering strategy in Fe(II)/α‐ketoglutarate‐dependent dioxygenases (αKGDs) to enhance oxygen (O2) transport, an essential molecule for αKGDs, and limit hydrogen peroxide (H2O2) entry, an inhibitor from the αKG supply system.
Huan Liu   +10 more
wiley   +1 more source

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