Results 171 to 180 of about 3,320,969 (355)

Single‐Cell Transcriptome Atlas Reveals the Underlying Mechanism of Kynurenic Acid in the Regulation of Tumor Immune Microenvironment in Glioblastoma

open access: yesAdvanced Science, EarlyView.
KYNA regulates the tumor immune microenvironment in glioblastoma. KYNA reprograms the balance between T cell exhaustion and activation to suppress glioblastoma progression through inhibiting exhaustion‐associated markers (such as PD‐1, LAG3, and TOX) and enhancing immune activation and cytotoxicity markers including granzymes GZMA and GZMB.
Di Chen   +19 more
wiley   +1 more source

Midkine‐Mediated Microglia Activation after Renal Injury Promotes Cognitive Impairment Following Ischemic Renal Injury

open access: yesAdvanced Science, EarlyView.
The mechanism of secondary cognitive impairment following AKI. When renal ischemic injury progresses to fibrosis, renal fibroblasts and damaged tubular cells secrete MDK, which circulates through the bloodstream, crosses the damaged BBB, and accumulates in the hippocampus tissue (an area crucial for learning and memory).
Li Lu   +10 more
wiley   +1 more source

Ratoon Season Rice Reduces Methane Emissions by Limiting Acetic Acid Transport to the Rhizosphere and Inhibiting Methanogens

open access: yesAdvanced Science, EarlyView.
This study finds that the interaction between ABA‐OsCIPK2‐OsSWEET1A reduces the allocation of methane producing bacteria carbon source (acetic acid) content to the rhizosphere soil of ratoon season rice, thereby reducing methane emissions. Abstract Rice paddies are a major, persistent source of atmospheric methane (CH4), emission rates depend on the ...
Jingnan Zou   +14 more
wiley   +1 more source

Constructing Dual‐Atomic Fe─Fe Sites Nanozyme for Targeted Osteoarthritis Therapy through Mitigating Oxidative Stress and Cartilage Degeneration

open access: yesAdvanced Science, EarlyView.
A novel bimetallic nanozyme (Fe2–NCs) with well‐defined Fe–Fe active sites is synthesized through a host–guest coordination strategy, which exhibits an exceptional therapeutic efficacy in osteoarthritis therapy. Experimental and theoretical analyses uncover the intrinsic catalytic mechanism at the atomic level, offering fundamental insights and design ...
Ting Ying   +6 more
wiley   +1 more source

[Residency training in clinical practice]. [PDF]

open access: yesRadiologie (Heidelb)
Soltani M, Molwitz I, Notohamoprodjo M.
europepmc   +1 more source

Oral Exposure to Food‐Grade Nanoparticles Poses a Risk of Alzheimer's Disease‐Like Symptoms by Triggering Autophagy Defects in Neurons

open access: yesAdvanced Science, EarlyView.
Three food‐grade nanomaterials induce dysregulated RyR‐Ca2+ signaling through epigenetic modifications. This dysregulation impairs the autophagic clearance process, ultimately leading to abnormal Aβ deposition and increase phosphorylated tau levels.
Jiaxin Shang   +7 more
wiley   +1 more source

Nurr1 Orchestrates Claustrum Development and Functionality

open access: yesAdvanced Science, EarlyView.
Nurr1 (Nr4a2) is the master transcription factor to control claustrum morphogenesis and cell fate decision postmitotically by inhibiting intracellular G‐protein signaling. Nurr1 deficiency alters the transcriptomic profiles of subcortical claustral neurons into neocortical insular neurons, resulting in defected claustrum development, impaired axonal ...
Kuo Yan   +12 more
wiley   +1 more source

Stabilized Ion Selectivity Corrects Activation Drift in Kalium Channelrhodopsins

open access: yesAdvanced Science, EarlyView.
As newly emerged optogenetic tools, potassium channelrhodopsins (KCRs) can drift from inhibition to activation during illumination as K⁺ selectivity declines. It is shown that both the absolute K⁺/Na⁺ permeability ratio and its stability over time govern this drift, identify KCR1‐C29D as a reliably inhibitory variant, and outline design principles for ...
Xiao Duan   +14 more
wiley   +1 more source

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