Results 61 to 70 of about 1,145,483 (297)

Radio-opaque agents in bone cement increase bone resorption.

open access: yes, 1997
A heavy infiltrate of foreign-body macrophages is commonly seen in the fibrous membrane which surrounds an aseptically loose cemented implant. This is in response to particles of polymethylmethacrylate (PMMA) bone cement and other biomaterials.
Y. Fujikawa   +3 more
core   +1 more source

TH17–Associated Polyamine Metabolism‐Guided Nanozyme Promotes Alveolar Bone Repair in Periodontitis

open access: yesAdvanced Science, EarlyView.
A pronounced TH17‐skewed immune response is identified in experimental periodontitis, and enrichment of the polyamine pathway is observed during TH17 differentiation, suggesting its potential as an immunometabolic target. Inspired by these findings, DFMO@Ui‐Mn is developed as a therapeutic platform combining cascade ROS scavenging with immunometabolic ...
Cheng Zhu   +12 more
wiley   +1 more source

Local mechanical stimuli regulate bone formation and resorption in mice at the tissue level. [PDF]

open access: yesPLoS ONE, 2013
Bone is able to react to changing mechanical demands by adapting its internal microstructure through bone forming and resorbing cells. This process is called bone modeling and remodeling.
Friederike A Schulte   +6 more
doaj   +1 more source

Preparation, physical-chemical characterisation and cytocompatibility of calcium carbonate cements [PDF]

open access: yes, 2006
The feasibility of calcium carbonate cements involving the recrystallisation of metastable calcium carbonate varieties has been demonstrated. Calcium carbonate cement compositions presented in this paper can be prepared straightforwardly by simply mixing
Bareille, Reine   +3 more
core   +1 more source

Streptococcal Mannose Phosphotransferase System Component IID Is a Novel RANK‐Binding Osteoclastogenic Factor

open access: yesAdvanced Science, EarlyView.
Streptococcal mannose phosphotransferase system component IID (Man‐PTSIID) is identified as a novel RANK‐binding osteoclastogenic factor. By directly binding to RANK and activating NF‐κB independently of TLR2, Man‐PTSIID drives osteoclastogenesis and inflammatory bone destruction, uncovering an unexpected microbial mechanism underlying streptococcal ...
Chaeyeon Park   +13 more
wiley   +1 more source

Inhibition of Acid Phosphatase Enzyme Activity in the Presence of Noncrystalline Calcium Phosphate and Nanocrystalline Calcium Apatite: a Preliminary Study [PDF]

open access: yes, 2009
*Background* Our bones are remodelled repeatedly during life. A new and “healthy” bone tissue replaces the old one. Accordingly, the bone degrading cells, the osteoclasts, prefer old and fatigued bone.
Yassen Pekounov
core  

Osteoclasts secrete osteopontin into resorption lacunae during bone resorption [PDF]

open access: yes, 2019
Osteopontin (OPN) is a non-collagenous extracellular sialylated glycoprotein located in bone. It is believed to be one of the key components in osteoclast attachment to bone during resorption.
Luukkonen, Jani   +7 more
core   +1 more source

Matrix Stiffness Orchestrates Mesenchymal Stem Cell Lineage Commitment Toward Osteogenesis and Adipogenesis Through the PIEZO1/SP1/STC2 Axis

open access: yesAdvanced Science, EarlyView.
Matrix stiffness directs mesenchymal stem cell lineage commitment through PIEZO1‐dependent activation of the SP1/STC2 pathway. Stiff matrices favor osteogenesis and suppress adipogenesis, whereas the loss of PIEZO1 function impairs early bone formation. STC2 retains lineage‐regulatory activity even when PIEZO1 is inactive.
Shuo Zhang   +12 more
wiley   +1 more source

Investigations on bone metabolism in intact and ovariohysterectomised miniature pigs [PDF]

open access: yes, 2007
Biochemical markers of bone metabolism have become a common form of analysis for bone metabolism. A number of factors, however, cause fluctuations in these parameters such as day-to-day changes, seasonal changes and age.
Babel, Brenda
core   +1 more source

Clinical and radiographic findings without the use of bone substitute materials in extraction sockets and delayed implant placement- A case series

open access: yesJournal of Oral Biology and Craniofacial Research, 2020
Aim: To observe clinically and radiographically (CBCT), the extent of bone resorption in extraction socket without the use of bone graft substitutes and delayed implant placement. Material and methods: 50 compliant patients were selected for study.
Lanka Mahesh   +4 more
doaj   +1 more source

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