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Bolstered bone regeneration by multiscale customized magnesium scaffolds with hierarchical structures and tempered degradation.
Bioact Mater
April 2025
Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China.
Addressing irregular bone defects is a formidable clinical challenge, as traditional scaffolds frequently fail to meet the complex requirements of bone regeneration, resulting in suboptimal healing. This study introduces a novel 3D-printed magnesium scaffold with hierarchical structure (macro-, meso-, and nano-scales) and tempered degradation (microscale), intricately customized at multiple scales to bolster bone regeneration according to patient-specific needs. For the hierarchical structure, at the macroscale, it can feature anatomic geometries for seamless integration with the bone defect; The mesoscale pores are devised with optimized curvature and size, providing an adequate mechanical response as well as promoting cellular proliferation and vascularization, essential for natural bone mimicry; The nanoscale textured surface is enriched with a layered double hydroxide membrane, augmenting bioactivity and osteointegration.
View Article and Find Full Text PDFMechanically regulated microcarriers with stem cell loading for skin photoaging therapy.
Bioact Mater
April 2025
Department of Gastrointestinal Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325035, China.
Long-term exposure to ultraviolet radiation compromises skin structural integrity and results in disruption of normal physiological functions. Stem cells have gained attention in anti-photoaging, while controlling the tissue mechanical microenvironment of cell delivery sites is crucial for regulating cell fate and achieving optimal therapeutic performances. Here, we introduce a mechanically regulated human recombinant collagen (RHC) microcarrier generated through microfluidics, which is capable of modulating stem cell differentiation to treat photoaged skin.
View Article and Find Full Text PDFGenetically-modified activation strategy facilitates the discovery of sesquiterpene-derived metabolites from .
Synth Syst Biotechnol
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Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China.
Genome mining has revealed that spp. possess numerous down-regulated or cryptic biosynthetic gene clusters (BGCs). This finding hinted that our investigation of fungal secondary metabolomes is limited.
View Article and Find Full Text PDFEditorial: Coffee and coffee by-products: innovative approaches fostering nutritional, sensory and chemical quality.
Front Nutr
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Food Engineering Department, Faculty of Agriculture, Selçuk University, Konya, Türkiye.
Exercise-induced extracellular vesicles in reprogramming energy metabolism in cancer.
Front Oncol
January 2025
Laboratory of Chemical Biology, National Institute of Chemical Physics and Biophysics, Tallinn, Estonia.
Cancer is caused by complex interactions between genetic, environmental, and lifestyle factors, making prevention strategies, including exercise, a promising avenue for intervention. Physical activity is associated with reduced cancer incidence and progression and systemic anti-cancer effects, including improved tumor suppression and prolonged survival in preclinical models. Exercise impacts the body's nutrient balance and stimulates the release of several exercise-induced factors into circulation.
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