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COVID-19 has been proposed to be an endothelial disease, as endothelial damage and oxidative stress contribute to its systemic inflammatory and thrombotic events. Polyphenols, natural antioxidant compounds appear as promising agents to prevent and treat COVID-19. Polyphenols bind and inhibit the F F -ATP synthase rotary catalysis. An early target of polyphenols may be the ectopic F F -ATP synthase expressed on the endothelial plasma membrane. Among the pleiotropic beneficial action of polyphenols in COVID-19, modulation of the ecto-F F -ATP synthase, lowering the oxidative stress produced by the electron transfer chain coupled to it, would not be negligible.
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http://dx.doi.org/10.1002/jcb.30306 | DOI Listing |
Proc Biol Sci
September 2025
Department of Biology, Evolutionary Ecology and Infection Biology, Lund University, SE-223 62, Lund, Sweden.
Incubation temperature affects both growth and energy metabolism in birds after hatching. Changes in cellular mechanisms, including mitochondrial function, are a likely but unexplored explanation for these effects. To test whether temperature-dependent changes to mitochondria may link embryonic development to the post-natal phenotype, we incubated Japanese quail eggs at constant low (36.
View Article and Find Full Text PDFFront Biosci (Landmark Ed)
August 2025
Department of Spine Surgery, Zhongda Hospital Southeast University, 210009 Nanjing, Jiangsu, China.
Background: After spinal cord injury (SCI), pro-inflammatory microglia accumulate and impede axonal regeneration. We explored whether secreted protein acidic and rich in cysteine (Sparc) restrains microglial inflammation and fosters neurite outgrowth.
Methods: Mouse microglial BV2 cells were polarized to a pro-inflammatory phenotype with lipopolysaccharides (LPSs).
Pestic Biochem Physiol
November 2025
Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100
The insect midgut peritrophic membrane (PM) plays important roles in insect-microbe interactions. Bacillus thuringiensis (Bt) and its proteinaceous toxins are widely used for insect control. To understand the role of PM in insects against Bt toxins, this study selected Grapholita molesta Busck (Lepidoptera: Tortricidae), a worldwide pest infesting fruit trees, as the research subject.
View Article and Find Full Text PDFAm J Med Genet A
September 2025
Division of Clinical and Metabolic Genetics, Department of Pediatrics, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada.
Most complex V subunits are nuclear encoded and so far, were not found in association with recognized Mendelian disorders. ATP5PO is a candidate gene for complex V mitochondrial disease. It encodes the oligomycin sensitivity-conferring protein (OSCP), an essential component of the "stalk" region that links the F1 and F0 domains of the ATP synthase complex.
View Article and Find Full Text PDFThe brain is a metabolically demanding organ as it orchestrates and stabilizes neuronal network activity through plasticity. This mechanism imposes enormous and prolonged energetic demands at synapses, yet it is unclear how these needs are met in a sustained manner. Mitochondria serve as a local energy supply for dendritic spines, providing instant and sustained energy during synaptic plasticity.
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