Results 221 to 230 of about 335,081 (290)

Unraveling Tissue‐Specific Fatty Acid Biosynthesis and Inter‐Tissue Crosstalk in Mice through Stable‐Isotope Tracing Metabolomics

open access: yesAdvanced Science, EarlyView.
Biosynthesis rates of 13 FFAs are quantitatively calculated in 15 tissues from glucose and an analytical framework to quantitatively calculate inter‐tissue communications of fatty acids between the liver and other tissues is developed. Moreover, the approach is extended to aging condition and a system‐wide decline of fatty acid synthesis in peripheral ...
Beizi Xing   +4 more
wiley   +1 more source

HIGD1A Alleviates Oxidative Stress Related Ovarian Hypofunction by Enhancing Granulosa Cell Functions via NF‐κB/SOD2 Signaling Pathway

open access: yesAdvanced Science, EarlyView.
HIGD1A maintains redox homeostasis in granulosa cells by modulating SOD2‐mediated dismutation of superoxide into H2O2, which is cleared by CAT and GPX enzymes. However, reduced HIGD1A activates the NF‐κB pathway and upregulates SOD2, leading to intracellular H2O2 accumulation due to impaired clearance.
Huiying Li   +11 more
wiley   +1 more source

Sleep Deprivation Activates a Conserved Lactate‐H3K18la‐RORα Axis Driving Neutrophilic Inflammation Across Species

open access: yesAdvanced Science, EarlyView.
Sleep deprivation triggers systemic immune activation characterized by neutrophil accumulation and cytokine release. This study reveals a conserved metabolic‒epigenetic mechanism whereby lactate‐induced H3K18 lactylation upregulates RORα expression, promoting neutrophilic inflammation.
Ren Zhou   +15 more
wiley   +1 more source

Pancreatic Cancer‐Derived Extracellular Vesicles Enriched with miR‐223‐5p Promote Skeletal Muscle Wasting Associated with Cachexia

open access: yesAdvanced Science, EarlyView.
EVs and EV‐microRNAs (miRNAs) mediate PDAC‐skeletal muscle communication. miR‐223‐5p reduces METTL14 transcription by targeting MAFA, which subsequently decreases m6A methylation in skeletal muscles, ultimately leading to muscle wasting. This study highlights the absorption of miRNA in PDAC‐derived EVs by skeletal muscles and reveals a previously ...
Kangjing Xu   +7 more
wiley   +1 more source

Aberrant Mitochondrial Metabolism in Alzheimer's Disease Links Energy Stress with Ferroptosis

open access: yesAdvanced Science, EarlyView.
Alves et al. reveal how energy loss and oxidative stress, two major features of Alzheimer's disease, are connected. Mitochondria controls the flux of the antioxidant glutathione (GSH), via facilitating both its production and consumption. Energy restriction limits GSH synthesis, conferring vulnerability to cell death by ferroptosis, implicated as a ...
Francesca Alves   +17 more
wiley   +1 more source

EFTUD2 Regulates Cortical Morphogenesis via Modulation of Caspase‐3 and Aifm1 Splicing Pathways

open access: yesAdvanced Science, EarlyView.
EFTUD2, a spliceosomal GTPase linked to MFDM, regulates cortical development through apoptotic control. Conditional Eftud2 knockout in murine neural stem cells induces microcephaly and cortical disorganization, while pathogenic variants drive neuronal loss.
Liping Chen   +12 more
wiley   +1 more source

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