Results 71 to 80 of about 7,228 (241)

A Programmable Braided Silk‐Glass Fiber Ligament Promoting Rapid Motoric Recovery

open access: yesAdvanced Science, EarlyView.
A scalable three‐dimensional braiding strategy integrates silk and glass fibers into customizable artificial ligaments with programmable “J‐shaped” nonlinear mechanics. The silk‐rich architecture supports osseoligamentous integration, while glass fibers provide mechanical reinforcement and biomimetic mineralization cues, enabling strain‐adaptive load ...
Changbo Lu   +16 more
wiley   +1 more source

Rational Surface Engineering Reduces Advanced Glycation End‐Product Adsorption and Improves Implant Integration

open access: yesAdvanced Science, EarlyView.
Targeted surface chemical modification prevents the accumulation of advanced glycation end products (AGEs) on implant surfaces, attenuates inflammation and fibrosis, effectively restores angiogenic activity, and improves osseointegration under diabetic conditions.
Thien Ngoc Le   +13 more
wiley   +1 more source

DUSP26 Regulated by YY1 Lactylation Couples Osteogenesis and Angiogenesis by Dephosphorylating PMPCB at Y141 and Activating Mitophagy in BMSCs

open access: yesAdvanced Science, EarlyView.
p300‐associated YY1 lactylation promotes DUSP26 expression in BMSCs. By regulating PMPCB phosphorylation and PINK1 processing, DUSP26 supports mitophagy, osteogenic differentiation, and pro‐angiogenic factor secretion. BMSC‐derived exosomes carrying a RUNX2 promoter‐driven DUSP26 plasmid favor osteogenic‐lineage transgene expression, partially ...
Yunpeng Lv   +15 more
wiley   +1 more source

Experiência clínica inicial na desmineralização química da valva aórtica: potencial aplicação como procedimento minimamente invasivo Chemical demineralization of the aortic valve: a potential application and preliminary clinical experience

open access: yesBrazilian Journal of Cardiovascular Surgery, 2006
OBJETIVO: Utilização de nova tecnologia na desmineralização química da valva aórtica, em cirurgia cardíaca com circulação extracorpórea, avaliação de suas alterações hemodinâmicas e reportar eventos relacionados à técnica.
Ricardo Carvalho Lima   +9 more
doaj   +1 more source

Integrated Single‐Cell and Spatial Transcriptomics Reveal Convergence on a Senescence‐Associated B Cell–MIF Signaling Axis in Joint Aging and Osteoarthritis Progression

open access: yesAdvanced Science, EarlyView.
Single‐cell and spatial transcriptomics implicate senescent B cells and macrophage migration inhibitory factor (MIF) signaling in aging and osteoarthritic joints. An injectable hydrogel combining quercetin with siRNA targeting MIF attenuates cartilage degeneration in a mouse model of osteoarthritis.
Weida Li   +11 more
wiley   +1 more source

The atrial neoannulus technique for mitral valve replacement in patients with severe mitral annular calcificationCentral MessagePerspective

open access: yesJTCVS Techniques
Objectives: Mitral valve replacement (MVR) in patients with severe mitral annular calcification (MAC) remains technically challenging because of the risk of annular disruption and associated complications.
Zubair A. Hashmi, MD   +5 more
doaj   +1 more source

Prótesis sin sutura: ¿es posible reducir la tasa de bloqueos postoperatorios modificando la técnica de implante?

open access: yesCirugía Cardiovascular, 2018
Resumen: Introducción: El recambio valvular aórtico con prótesis sin sutura Perceval S se asocia a un aumento en la tasa de bloqueo auriculoventricular postoperatorio que precisa implante de marcapasos definitivo, comparado con las bioprótesis ...
Miguel González-Barbeito   +11 more
doaj   +1 more source

PHGDH‐Mediated Serine Metabolism in Nucleus Pulposus Cells Is a Potential Therapeutic Target for Intervertebral Disc Degeneration

open access: yesAdvanced Science, EarlyView.
When nucleus pulposus cells senesce, PHGDH decreases, reducing serine synthesis and glutathione, impairing antioxidant capacity. The intermediate α‐KG also drops, lowering JMJD3 demethylase activity, increasing H3K27me3 at the Rap1b promoter, and reducing Rap1b expression, whose down‐regulation in turn activates mTORC1 and suppresses autophagy ...
Hao‐Wei Xu   +5 more
wiley   +1 more source

Histopathological Study of Periapical Inflammation Following Preparation of the Root Canal with Conventional and Profile Rotary Instrumentation in Teeth of Cats

open access: yesFrontiers in Dentistry, 2005
Statement of Problem: Various factors are involved in causing inflammation following root canal treatment. Controlling these factors may relieve the related pain. One of these factors is extrusion of debris beyond the apex.
M. Bidar   +3 more
doaj  

Differences in predominant collagen fiber orientation between dorsal and plantar trabecular bone tracts of adult mule deer calcanei suggest strain‐mode‐specific adaptation

open access: yesThe Anatomical Record, EarlyView.
Polarized microscopic images of the outer bone cortex (a and b) and deeper trabecular bone (c and d) of the deer calcaneus in thin cross‐sections. The brighter gray levels reflect more oblique‐to‐transverse collagen fibers in the compression/dorsal bone (a, c) and the darker gray levels reflect more longitudinal collagen in the tension/plantar bone (b,
John G. Skedros   +3 more
wiley   +1 more source

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