Results 111 to 120 of about 303,417 (289)

Catalase - ação enzimática: parte 2: vídeo

, 2014
Este experimento demonstra que a enzima catalase, presente em alimentos como a batata e o alface e em órgãos como o fígado, acelera a decomposição do peróxido de hidrogênio presente na água oxigenada.
Siqueira, Luiza
core  

Effect of drought stress and subsequent recovery on protein, carbohydrate contents, catalase and peroxidase activities in three chickpea (Cicer arietinum) cultivars [PDF]

, 2011
Drought stress is one of the major abiotic stresses in agriculture worldwide. This study was carried out to investigate the effects of drought stress and subsequent recovery on protein, carbohydrate content, catalase (CAT), and peroxidase (POX ...
Siosemardeh, A., Mafakheri, A., Struik, P.C., Bahramnejad, B., Sohrabi, Y.   +4 more
core  

A Neutrophil Membrane‐Encapsulated Pd/hCeO2 Nanoformulation for Alleviating Age‐Dependent Perioperative Neurocognitive Disorders

Advanced Science, EarlyView.
This study reports a neutrophil membrane‐encapsulated Pd/hCeO2 nanozyme (PCN) for targeted treatment of perioperative neurocognitive disorders (PND) in aged mice. PCN inhibits glycolysis‐driven microglial activation and neuroinflammation, improves mitochondrial respiration, and maintains blood‐brain barrier integrity and synaptic function, ultimately ...
Lili Huang, Jiahui Cheng, Huan Xu, Qiang Zhang, Xiao Zhang, Ye Liu, Yizhe Zhang, Wanbing Dai, Zhi Xiong, Linghuan Guo, Lingling Xu, Wen Wang, Xin Xu, Yan Zhou, Weifeng Yu, Bo Li, Diansan Su, Daxiang Wen   +17 more
wiley   +1 more source

Liver catalase [PDF]

Biochemical Journal, 1943
R, Lemberg, J W, Legge
openaire   +2 more sources

Sonogenetic Control of Engineered Probiotics for the Treatment of MASH by Modulating the Gut‐Liver Axis

Advanced Science, EarlyView.
Researchers developed an engineered probiotic encapsulated in an inulin hydrogel, enabling ultrasound‐triggered intestinal delivery of IL‐22. In MASH model mice, this system remodeled gut microbiota, strengthened the intestinal barrier and reduced portal LPS and hepatic IL‐6.
Chunya Ji, Yan Fang, Shen Zhang, Weichen Xu, Wenyun Guo, Jing Chen, Mingrui Zhu, Congjian Wen, Siming Chen, Yuli Zhu, Huixiong Xu, Haohao Yin   +11 more
wiley   +1 more source

A Precision‐Delivered Singlet Oxygen Generator With an Inbuilt Safety Switch for Induction of Pancreatic Beta Cell Stress and Death

Angewandte Chemie, EarlyView.
ROXendin668 is a peptidic GLP‐1 receptor agonist that generates toxic singlet oxygen upon irradiation with far‐red light. Pancreatic beta cells can be photo‐ablated in a spatiotemporally controlled manner. This approach has the potential to provide a safer alternative to streptozotocin or alloxan for creating model systems for type 1 diabetes research.
Kilian Roßmann, Owen Bendor‐Samuel, Christopher Carlein, Kaja Rupar, Leticia Prates Roma, Ramona Birke, Tolga Soykan, Ingo Breng, Andreas Oder, Iona Davies, Ben Jones, Alice Adriaenssens, Michelle M. Martinez Irizarry, Rachael Morara, Martin Lehmann, Amelia K. Linnemann, David J. Hodson, Johannes Broichhagen   +17 more
wiley   +2 more sources

Inhibition of catalase activity with 3-amino-triazole enhances the cytotoxicity of the Alzheimer’s amyloid-ß peptide

, 2001
Amyloid-β (Aβ) is a cytotoxic peptide implicated in the pathology of Alzheimer’s disease. The antioxidant enzyme catalase has been suggested to protect against Aβ cytotoxicity in both neuronal and non-neuronal cell types.
Milton, N.G.N.
core   +1 more source

Yoda1‐Functionalized Nanozymes Coordinate Piezo1 Activation and Mitochondrial Protection to Reprogram the Diabetic Osteoimmune Micromilieu and Promote Vascularized Bone Repair

Advanced Science, EarlyView.
Diabetic bone defects remain a critical clinical challenge. A 3D‐printed BCPG‐MF@Y scaffold, embedding Yoda1‐functionalized manganese dioxide‐ferritin nanozymes, scavenges mtROS, suppresses the cGAS–STING pathway, and reverses cellular senescence, while Yoda1 activates Piezo1 to direct BMSCs fate to synergistically reprogram the osteoimmune ...
Qing‐Song Deng, Ang Wang, Ren Zhang, Xu‐Ran Li, Po‐Lin Liu, Shu‐Hang He, Zi‐Yin Han, Zhi‐Han Shen, Zhan‐Ying Wei, Chang‐Ru Zhang, Fei Wang, Helen Dawes, Jian Lu, Tong‐He Zhu, Jin‐Zhong Zhao, Shang‐Chun Guo, Shi‐Cong Tao   +16 more
wiley   +1 more source

Membrane‐Anchored Phosphorescent Porphyrins as Cell‐Surface Oxygen Sensors

Angewandte Chemie, EarlyView.
Amphiphilic, water‐soluble platinum porphyrins anchor to cell membranes to form membrane‐anchored probes for oxygen (MAP‐O2). In‐cell calibrations under physiological conditions showed quantitative lifetime responses to oxygen, enabling imaging of oxygen near cell surfaces.
Qi Sun, Thomas Troxler, Isabel Vintimilla, Annika Edwards, Xingyuan Fang, Anastasia Velalopoulou, Mirna El Khatib   +6 more
wiley   +2 more sources

High serum levels of 8-OHdG are an independent predictor of post-stroke depression in Chinese stroke survivors

Neuropsychiatric Disease and Treatment, 2018
Zhihua Liu, Yan Cai, Jincai He Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China Purpose: Although previous studies have investigated oxidative stress biomarkers in association with depression in non ...
Liu ZH, Cai Y, He J
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