Results 281 to 290 of about 374,310 (333)

Cellular Adaptation to Mechanical Stress Emerges via Cell Shrinkage Triggered by Nonlinear Calcium Elevation

open access: yesAdvanced Science, EarlyView.
Here, a decision‐making mechanism underlying mechanical adaptation is demonstrated. This study demonstrates that cellular adaptation to mechanical stress can be induced by applying low‐amplitude stretch to cells. When the stretch reaches a critical amplitude threshold, it triggers Ca2⁺‐dependent positive feedback, which induces cholesterol efflux and ...
Zhengyan Wang   +21 more
wiley   +1 more source

The actin cytoskeleton plays multiple roles in structural colour formation in butterfly wing scales. [PDF]

open access: yesNat Commun
Lloyd VJ   +11 more
europepmc   +1 more source

An Off‐the‐Shelf Artificial Blood Clot Hydrogel Neutralizing Multiple Proinflammatory Mediators for Pro‐Regenerative Periodontitis Treatment

open access: yesAdvanced Science, EarlyView.
CCS‐RSF@PRP hydrogel is engineered to structurally and functionally mimic the blood clot by integrating PPR, CCS, and RSF nanofibers through in situ activation of PRP. In a rat periodontitis model, CCS‐RSF@PRP hydrogel effectively promotes periodontal tissue repair, attributing to neutralizing the multiple proinflammatory mediators, thus rebuilding a ...
Yini Huangfu   +14 more
wiley   +1 more source

Brachyury‐Activated Fucoidan Hydrogel Microspheres Rejuvenate Degenerative Intervertebral Discs Microenvironment

open access: yesAdvanced Science, EarlyView.
This study describes the creation of injectable Brachyury (Bry) mRNA‐loaded Fucoidan‐functionalized GelMA hydrogel microspheres (BLNP@GF). These microspheres efficiently suppress inflammation, enhance extracellular matrix (ECM) synthesis in degenerated nucleus pulposus cells, and mitigate intervertebral disc degeneration (IVDD) in rat models.
Yuhao Gong   +12 more
wiley   +1 more source

Nasal Delivery of Engineered Exosomes via a Thermo‐Sensitive Hydrogel Depot Reprograms Glial Cells for Spinal Cord Repair

open access: yesAdvanced Science, EarlyView.
Engineered macrophage‐derived exosomes overexpressing GNA12 and GNA13 reprogram glial cells to promote neuroprotection and neural regeneration following SCI. A chitosan‐based thermosensitive hydrogel enables sustained intranasal exosome delivery, bypassing systemic barriers and enhancing therapeutic efficacy.
Yangyang Wang   +13 more
wiley   +1 more source

Dual‐Modular Hydrogel Microparticles with Precision‐Modulation of Inflammatory Microenvironment Dictate Full‐Thickness Cartilage Regeneration for Osteoarthritis Repair

open access: yesAdvanced Science, EarlyView.
Cartilage injury is a prominent pathological hallmark of osteoarthritis. In this study, we developed a two‐modular hydrogel microparticle system wherein HMP‐A effectively targets the damaged area, while HMP‐B forms an efficient connection with HMP‐A on the cartilage surface.
Xinye Chen   +5 more
wiley   +1 more source

Additive Manufactured Magnetoelectric Wireless Retainer as the Periodontal Remodeler for Post‐Orthodontic Tissue Reconstruction and Relapse‐Inhibition

open access: yesAdvanced Science, EarlyView.
Orthodontic relapse persists as a 120‐year challenge, as traditional retainers fail to remodel tissue, causing lifelong dependence. This study demonstrates a flexible magnetoelectric retainer (FMOR) enabling wireless periodontal remodeling. FMOR cues shift periodontal ligament cell (PDLC) paracrine signaling, promoting M2 macrophages, osteogenic ...
Haoqi Lei   +9 more
wiley   +1 more source

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