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Impact of age-related changes in buccal epithelial cells on pediatric epigenetic biomarker research.
Nat Commun
January 2025
British Columbia Children's Hospital Research Institute, University of British Columbia, Vancouver, BC, Canada.
Cheek swabs, heterogeneous samples consisting primarily of buccal epithelial cells, are widely used in pediatric DNA methylation studies and biomarker creation. However, the decrease in buccal proportion with age in adults remains unexamined in childhood. We analyzed cheek swabs from 4626 typically developing children 2-months to 20-years-old.
View Article and Find Full Text PDF[Mechanism of Bone-metastatic LUAD Cells Promoting Angiogenesis Through HGF/YAP Signaling Pathway].
Zhongguo Fei Ai Za Zhi
November 2024
College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China.
Background: The early stages of tumor bone metastasis are closely associated with changes in the vascular niche of the bone microenvironment, and abnormal angiogenesis accelerates tumor metastasis and progression. However, the effects of lung adenocarcinoma (LUAD) cells reprogrammed by the bone microenvironment on the vascular niche within the bone microenvironment and the underlying mechanisms remain unclear. This study investigates the effects and mechanisms of LUAD cells reprogrammed by the bone microenvironment on endothelial cells and angiogenesis, providing insights into the influence of tumor cells on the vascular niche within the bone microenvironment.
View Article and Find Full Text PDFMolecular engineering of poly(amino)heptazine expands intra-molecular built-in electric field for efficient activation persulfate.
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College of Chemistry, Soochow University, Suzhou 215123, PR China. Electronic address:
In the manipulation of π-conjugated organic polymer, strategic alterations to the polymerization cascade facilitate the integration of donor (D) and acceptor (A) entities within the polymer's backbone. Such control is instrumental in broadening the photoresponse spectrum, enhancing photoinduced charge separation, and augmenting the efficiency of charge transfer processes. The oxygen-containing amino group (-ONH) was innovatively grafted into the polymerization process of the triazine-heptazine ring skeleton, and the -ONH was used as a capping agent to change the chain bonding in the polymerization process, thus a new intramolecular D-A structure was successfully constructed.
View Article and Find Full Text PDFDirected evolution of antimicrobial peptides using multi-objective zeroth-order optimization.
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School of Computer Science and Technology, Harbin Institute of Technology, HIT Campus, Shenzhen University Town, Nanshan District, Shenzhen 518055, Guangdong, China.
Antimicrobial peptides (AMPs) emerge as a type of promising therapeutic compounds that exhibit broad spectrum antimicrobial activity with high specificity and good tolerability. Natural AMPs usually need further rational design for improving antimicrobial activity and decreasing toxicity to human cells. Although several algorithms have been developed to optimize AMPs with desired properties, they explored the variations of AMPs in a discrete amino acid sequence space, usually suffering from low efficiency, lack diversity, and local optimum.
View Article and Find Full Text PDFDietary blueberry before and/or after exposure to HZE particle radiation attenuates neuroinflammation, oxidative stress, glial cell activation, and memory deficits in rats.
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USDA-ARS, Jean Mayer Human Nutrition Research Center on Aging at Tufts University, Boston, MA, USA. Electronic address:
Background: Acute neuroinflammatory and oxidative-stress (OS)-inducing stressors, such as high energy and charge (HZE) particle irradiation, produce accelerated aging in the brain. Anti-inflammatory and antioxidant foods, such as blueberries (BB), attenuate neuronal and cognitive deficits when administered to rodents before or both before and after HZE particle exposure. However, the effects of post-stressor treatments are unknown and may be important to repair initial damage and prevent progressive neurodegeneration.
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