Results 61 to 70 of about 38,030 (279)

Mechanically strained osteocyte-derived exosomes contained miR-3110-5p and miR-3058-3p and promoted osteoblastic differentiation

BioMedical Engineering OnLine
Background Osteocytes are critical mechanosensory cells in bone, and mechanically stimulated osteocytes produce exosomes that can induce osteogenesis.
Yingwen Zhu, Yanan Li, Zhen Cao, Jindong Xue, Xiaoyan Wang, Tingting Hu, Biao Han, Yong Guo   +7 more
doaj   +1 more source

Bone Cell Exosomes and Emerging Strategies in Bone Engineering

Biomedicines, 2022
Bone tissue remodeling is a highly regulated process balancing bone formation and resorption through complex cellular crosstalk between resident bone and microenvironment cells.
Sanjana Vig, Maria Helena Fernandes
doaj   +1 more source

A Bone Marrow–Mimetic Hydrogel Enables Dual‐Phase Hemostasis and Vascularized Osteogenesis for Cranial Defects

Advanced Science, EarlyView.
A biomimetic, fiber‐reinforced hydrogel (FE‐PDA@Fib/Gel‐TG) that enables dual‐phase cranial defect repair. The system provides: instant hemostasis in the early stage, and sustained co‐delivery of pro‐angiogenic and osteogenic signals for synergistic vascularized bone regeneration.
Lingbin Che, Donghong Li, Huan Zhang, Tingting Xu, Juhan Li, Xuanzhou Chen, Louis D. Zhang, Shuguang Wang, Dianwen Song, Dongyong Sha   +9 more
wiley   +1 more source

Finite Element Models of Osteocytes and Their Load-Induced Activation [PDF]

, 2022
Purpose of Review: Osteocytes are the conductors of bone adaptation and remodelling. Buried inside the calcified matrix, they sense mechanical cues and signal osteoclasts in case of low activity, and osteoblasts when stresses are high.
Smit, Theodoor H.
core   +1 more source

Research progress on the regulation and mechanism of osteocytes on osteoblasts and osteoclasts

Kouqiang hemian waike zazhi
With the continuous explorations and researches of osteocytes, osteocytes are no longer mistaken for a kind of quiescent and passive cells, but active and positive cells, which play important regulatory roles in osteoblasts and osteoclasts.
YANG Zhenming, ZHANG Shuyu, QIANG Jinbiao, SHI Yan, WANG Xiaoling, SHI Ce   +5 more
doaj   +1 more source

A Skull Bone Marrow‐to‐Brain Axis Links Osteoblastic Activity to Myeloid Cell Trafficking, Cerebral Blood Flow, and Cognition in Alzheimer's Progression

Advanced Science, EarlyView.
This study reveals that Alzheimer's disease–linked APP expression in bone‐forming cells drives skull bone marrow remodeling and alters its vascular connections to the brain. These changes disrupt immune cell trafficking, cerebral blood flow, and cognition. Targeting bone marrow macrophages restores brain function, highlighting a previously unrecognized
Lei Xiong, Dong Sun, Hao‐Han Guo, Daehoon Lee, Zhipeng Liu, Lin Mei, Wen‐Cheng Xiong   +6 more
wiley   +1 more source

The Cementocyte—An Osteocyte Relative? [PDF]

Journal of Dental Research, 2016
Cementum is a mineralized tissue covering the tooth root that functions in tooth attachment and posteruptive adjustment of tooth position. During formation of the apically located cellular cementum, some cementoblasts become embedded in the cementoid matrix and become cementocytes. As apparently terminally differentiated cells embedded in a mineralized
N, Zhao, B L, Foster, L F, Bonewald
openaire   +2 more sources

Oxygen Vacancy‐Enriched Platinum Single‐Atom Nanozyme Wrapped in Nanoislands: Unlocking Catalytic Activity and Reprogramming Redox Microenvironment for Osteonecrosis Repair

Advanced Science, EarlyView.
CeO2‐x/Pt single‐atom nano‐island is constructed via low‐temperature reduction, featuring abundant oxygen vacancies and an island–sea structure. It delivers outstanding multi‐enzyme‐mimetic activity and ROS‐scavenging efficiency. Density functional theory reveals optimized electronic structures and reaction pathways.
Yang Zhu, Zehui Lv, Xuejie Cai, Penghui Wei, Dengliang Wang, Zhao Wang, Ruoying Wang, Yingjie Wang, Xingdong Yang, Yixin Bian, Jiawei Xu, Xisheng Weng, Liangfeng Wei   +12 more
wiley   +1 more source

Engineered Exosomal miR‐146a‐5p Reprograms BMSC Fate and Restores Mitochondrial Homeostasis in Glucocorticoid‐Induced Osteonecrosis of Femoral Head

Advanced Science, EarlyView.
Exosomal miR‐146a‐5p is identified as a pivotal regulator in steroid‐induced osteonecrosis. Its reduction activates NF‐κB signaling, compromises mitophagy, and disrupts mitochondrial bioenergetics, resulting in autophagic disequilibrium. Engineered exosomes delivering miR‐146a‐5p reinstate mitochondrial function, augment oxidative phosphorylation and ...
Zehui Lv, Xuejie Cai, Yiming Xu, Xingdong Yang, Ruoying Wang, Han Wang, Yixin Bian, Jiawei Xu, Jiao Lu, Lulu Liu, Yingjie Wang, Jibin Song, Bin Feng, Xisheng Weng   +13 more
wiley   +1 more source

Osteocytes morphology. [PDF]

, 2012
Stevenel’s/Van Gieson staining was performed on the diaphysial region of the same μCT analyzed femurs. Flight Wt2 (A) ground Wt2 (B) flight PTN-Tg2 (C) and ground PTN-Tg2 (D) cortical bone, magnification 60x.
Sara Tavella (162919), Barbara Canciani (177393), Federica Piccardi (177418), Giuliana Tromba (177424), Katia Marozzi (177405), Alessandra Giuliani (177382), Yi Liu (36759), Franco Rustichelli (177427), Alessandra Ruggiu (162911), Roberta Tasso (177421), Francesco Brun (177387), Adrian Manescu (177398), Ranieri Cancedda (43161), Delfina Costa (177412), Michele Cilli (42634)   +14 more
core   +1 more source