Results 161 to 170 of about 141,811 (315)

Trifunctional Sialylation‐Based SF‐ZIF@NA Hydrogel for Selective Osteoclast Inhibition and Enhanced Bone‐Vessel Regeneration in Osteoporotic Bone Defects

open access: yesAdvanced Science, EarlyView.
This study introduces the SF‐ZIF@NA hydrogel system for osteoporotic bone defect treatment. The hydrogel inhibits osteoclast fusion by removing sialic acid and preserves the anabolic function of precursor osteoclasts (pOCs). It also releases Zn2⁺ in acidic conditions, promoting osteogenesis and angiogenesis.
Zhengrong Chen   +13 more
wiley   +1 more source

Eosinophils‐Induced Lumican Secretion by Synovial Fibroblasts Alleviates Cartilage Degradation via the TGF‐β Pathway Mediated by Anxa1 Binding

open access: yesAdvanced Science, EarlyView.
Eosinophils play a crucial role in the progression of temporomandibular joint osteoarthritis (TMJOA). This study demonstrates that eosinophils, induced by OVA/IL‐5, promote Lumican secretion in the synovium, which binds to Annexin A1 in chondrocytes, inhibiting transforming growth factor β2 and Smad2/3 phosphorylation.
Wenqian Chen   +12 more
wiley   +1 more source

Identification of NIBAN2‐Regulated RUNX2 Alternative Splicing Presents Novel Strategies for Antagonizing Osteoporosis

open access: yesAdvanced Science, EarlyView.
NIBAN2 interacts with the HNRNPU‐cored spliceosome complex and alters its components to regulate the alternative splicing of RUNX2, which ultimately cause an increase in functional RUNX2 (nuclear localization sequence complete) but a decrease in dysfunctional Runx2 (exon 6‐exclusive) isoforms to reinforce osteoblast differentiation.
Sheng Zhang   +9 more
wiley   +1 more source

BEHAVIORAL MODEL OF A BASIC TRABECULAR-BONE MULTI-CELLULAR UNIT USING CELLULAR AUTOMATON

open access: yesVisión Electrónica, 2014
Bone remodeling is the biological process through which old bone tissue is transformed into new bone through the action of a basic unit of bone remodeling (BMU).
Aldemar Fonseca Velásquez
doaj  

Inhibition of Ferroptosis Delays Aging and Extends Healthspan Across Multiple Species

open access: yesAdvanced Science, EarlyView.
This study identifies ferroptosis as a key driver of cellular senescence, with its inhibition delaying aging and extending healthspan across species. During senescence, ferroptosis worsens, increasing oxidative stress and lipid peroxidation, which accelerate aging.
Hai‐Jun Fu   +15 more
wiley   +1 more source

Estudio clínico e histológico de aloinjerto de hueso liofilizado en alvéolos posextracción. Presentación de caso clínico Clinical and histological study of bone lyophilisate allograft in post-extraction sokets. Presentation of clinical case

open access: yesRevista de la Asociación Odontológica Argentina, 2015
Resumen Objetivos: Evaluar las respuestas clínicas e histológicas y determinar la calidad del hueso obtenido por medio del aloinjerto utilizado en un alvéolo posextracción en el que se realizó una técnica de preservación del volumen alveolar, a fin
Melania Palmieri de Irazuzta   +2 more
doaj  

Manipulation of Oxygen Tension in Damaged Regions via Hypoxia‐Induced IPN Hydrogel Microspheres for Intervertebral Disc Regeneration

open access: yesAdvanced Science, EarlyView.
A novel interpenetrating network hydrogel microsphere (NSC‐Exos@HIMS) is developed to manipulate oxygen tension in damaged regions and recruit endogenous stem cells. In vitro and in vivo results show that NSC‐Exos@HIMS maintains the hypoxia microenvironment for up to 5 days, which triggers nucleus pulposus cell‐like differentiation and enhanced ECM ...
Xingdie Zhou   +9 more
wiley   +1 more source

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