Results 171 to 180 of about 1,493,603 (403)

Glycolytic Enzyme HK2 Phosphorylates nSMase1 to Promote Astrocytic Exosomes Biogenesis Contributing to Acute Ischemic Stroke Injury

open access: yesAdvanced Science, EarlyView.
This study reveals that the glycolytic enzyme HK2 mediates hypoxia‐induced astrocytic exosome biogenesis by directly phosphorylating nSMase1. These astrocytic exosomes impair brain endothelial tight junctions. Astrocyte‐specific knockdown of HK2 reduces exosome release and alleviates brain injury after MCAO.
Chen Chen   +12 more
wiley   +1 more source

Characterization of Glucose Oxidase from Penicillium notatum

open access: yesFood Technology and Biotechnology, 2009
In the present study glucose oxidase (GOD) has been isolated from a culture filtrate of Penicillium notatum. The enzyme was purified by ammonium sulphate precipitation, diethylaminoethyl (DEAE) cellulose ion-exchange chromatography and Sephadex gel ...
Nabeela Saleem, Haq Nawaz Bhatti
doaj  

Bacteria Optimize Tumble Bias to Strategically Navigate Surface Constraints

open access: yesAdvanced Science, EarlyView.
The study investigates how Escherichia coli optimizes tumble bias (TB) to navigate surface constraints effectively. Using single‐cell tracking and modeling, it reveals that bacterial surface residence time decreases with increasing TB, stabilizing near the wild‐type mean TB (≈0.25), where surface diffusivity peaks.
Antai Tao   +3 more
wiley   +1 more source

H2O2‐Activated Serotonin Precursor Probe for Mapping Neuronal Redox Homeostasis Reveals 5‐HT Interactions with Neighboring Proteins Under Oxidative Stress

open access: yesAdvanced Science, EarlyView.
HOP, an innovative ICT‐based fluorescent probe, visualizes H2O2 in stressed neurons while locally releasing serotonin (5‐HT) for real‐time protein interaction mapping. Its unique tandem sensing and labeling strategy reveals 5‐HT's role under oxidative stress, offering a powerful tool for neurophysiological research and therapeutic discovery.
Yani Liu   +9 more
wiley   +1 more source

Mesencephalic Astrocyte‐Derived Neurotrophic Factor Binds BAX to Preserve Mitochondrial Homeostasis and Energy Metabolism for Relieving Myocardial Hypertrophy

open access: yesAdvanced Science, EarlyView.
MANF in cardiomyocytes interacts with BAX to impede BAX mitochondrial translocation and cytochrome c release, further stabilizing mitochondrial structure and energy supply to relieve myocardial apoptosis and hypertrophy, which indicates MANF as a novel cardioprotective factor to have a promising clinical application for myocardial hypertrophy ...
Dong Wang   +13 more
wiley   +1 more source

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