Results 81 to 90 of about 211,060 (265)

A Hydrogen‐Releasing Nanozyme Engineers a Mitochondrial ROS Amplifier for Self‐Sustaining Catalytic Immunotherapy

Advanced Science, EarlyView.
We developed a RhPd‐H nanozyme that integrates enhanced POD‐mimetic catalytic activity with thermally triggered H2 release. H2 shields and reprograms mitochondria to continuously leak endogenous ·O2−. This dual‐path ROS spatially and temporally disrupts redox homeostasis, inducing persistent oxidative stress for tumor suppression and antitumor immunity,
Mingfan Shi, Jingrui Cao, Tong Wu, Guang Yang, YaWen Yang, Shixin Zhang, Wenwen Su, Hongyu Chu, Yangyang Zhao, Shan Jiang, Qiong Wu, Dongxu Jiao, Fangfang Chen   +12 more
wiley   +1 more source

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

Біологічні 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, O. I. Bishko, S. M. Mandzynets, А. B. Heneha, M. B. Halan, V. P. Otchych, D. I. Sanahursky   +6 more
doaj   +1 more source

Bioadhesive Hydrogel With Polyphenol‐Armored Nanogene Rejuvenates Chondrocyte Senescence for Aged Osteoarthritis Therapy

Advanced Science, EarlyView.
An adhesive hydrogel depot with polyphenol‐armored nanogenes is developed for treating aged osteoarthritis. This system maintains miR‐140 bioactivity, prolongs its intra‐articular retention, and enhances transfection into chondrocytes, leading to the downregulation of senescence‐associated pathways.
Liwei Yan, Runze Yang, Ting Zhou, Tianhao Xu, Yongqi Li, Yuelin Hu, Minghao Ge, Lei Zhang, Xiong Lu, Chaoming Xie, Weili Fu   +10 more
wiley   +1 more source

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

Brain 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, Betül Uyar, Süleyman Dönmezdil, İbrahim Kaplan   +3 more
doaj   +1 more source

Advanced Dental Composite Technology via Bisilanized Dual‐Action Nanofillers for Biofilm Control

Advanced Science, EarlyView.
A multimodal research strategy has led to the development of an innovative resin‐based composite (RBC) with dual antibacterial action. The S_CM‐RBC formula showed strong antibiofilm activity, excellent mechanical strength, and biosafety. It effectively controlled oral bacteria in prevention of caries recurrence, and maintained pulp health in a rat ...
Chenmin Yao, Line Etiennot, Naiera Zayed, Shengjie Liang, Mehraveh Saghi, Jelle Verdonck, Lingyue Liu, Fei Zhang, Wim Teughels, Cui Huang, Kirsten Van Landuyt, Bart Van Meerbeek   +11 more
wiley   +1 more source

Chitosan‐Carbon Dot Composite Materials Form a Leaf Surface Barrier to Mitigate the Enrichment and Invasion of Nanoplastics: From Leaf Interface to Systemic Response

Advanced Science, EarlyView.
Foliar spraying of CS‐CDs can form a film on the leaves of Brassica rapa, effectively reducing the enrichment and absorption of PS in the leaves, while increasing the biomass and nutrient content of the plants. In addition, CS‐CDs can also enrich the interfoliar microbial community and activate the plant's own defense metabolic pathways.
Beibei Zhao, Mei Li, Mengjiao Fan, Chuanhuan Liu, Jie Jiang, Jia Song, Yingzhu Liu   +6 more
wiley   +1 more source

Dual Physiological Barriers Bypassed by a Silk‐Based Supramolecular Protein Delivery Platform for Neuroinflammation Mitigation in Alzheimer's Disease

Advanced Science, EarlyView.
A supramolecular nanocomplex based on phenolic‐modified silk sericin is developed to deliver antioxidant enzymes across the blood–brain barrier and escape lysosomal degradation. This dual‐barrier‐crossing system reduces neuroinflammation and improves cognitive performance in Alzheimer's disease mouse model, offering a promising strategy for protein ...
Doudou Hu, Tiandong Li, Jian He, Yujian Jiang, Yeyuan Wang, Jingchen Sun   +5 more
wiley   +1 more source

Atividade do sistema antioxidante e desenvolvimento de aerênquima em raízes de milho 'Saracura' Antioxidant system activity and aerenchyma formation in 'Saracura' maize roots

Pesquisa Agropecuária Brasileira, 2010
Este trabalho teve como objetivo avaliar a influência de sucessivos ciclos de seleção do milho 'Saracura' na atividade das enzimas do sistema antioxidante, e a relação dessas enzimas com a capacidade dessa variedade em desenvolver aerênquima. Sementes de
Fabricio José Pereira, Paulo César Magalhães, Thiago Corrêa de Souza, Evaristo Mauro de Castro, José Donizeti Alves   +4 more
doaj   +1 more source

Self‐Accelerating Bimetallic Peroxide Nanozymes for Cascade‐Amplified Pyroptosis‐Immunotherapy

Advanced Science, EarlyView.
Acidic tumor microenvironment‐responsive CuZnONPs enable triple‐combination therapy via self‐supplying H2O2, cascade nanozyme activities for ROS burst, and Zn2+‐activated pyroptosis, synergizing catalytic therapy with immunotherapy to convert cold tumors into hot ones.
Xuanyi Lu, Liang Li, Siyu Pan, Yuehan Jian, Yuhan Chen, Wenjie Yang, Guang Song, Xueyang Fang, Ping'an Ma, Lijun Jiang   +9 more
wiley   +1 more source

Spatiotemporal Control of Formation of Dynamic Protein Fiber Assemblies via Photophysical Effects of a Focused Laser Beam

Advanced Science, EarlyView.
Tightly focused laser irradiation can accumulate tubulin proteins at/around the laser focus, which leads to the formation of highly ordered microtubule assemblies. The assemblies can exhibit various dynamic behaviors such as radial motion, bundling, and flagella‐like rotation with motor protein and chemical energy, highlighting as a unique tool for ...
Hiroshi Y. Yoshikawa, Ren Shirata, Takuya Takeshige, Riki Yoshida, Fumika Kiryu, Kei Takano, Shuma Matsumoto, Reiji Kawanami, Natsumi Sawada, Chi‐Shiun Wu, Yang‐Hsin Shih, Hiromasa Niinomi, Takahisa Matsuzaki, Seiichiro Nakabayashi, Tomoaki Matsuura, Teruki Sugiyama, Ryuzo Kawamura   +16 more
wiley   +1 more source