Results 51 to 60 of about 7,228 (241)

The role of sulfidation of Fe-carbonate rocks in increasing gold contents at the Zarshuran deposit (northern Takab), Takab-Angouran metallogenic district

open access: yesJournal of Economic Geology, 2022
Iron and arsenic sulfides are considered as the most important gold hosts in the sediment-hosted disseminated invisible gold deposits. The Zarshuran gold deposit (155 tons Au with average grade of 2.63 g/t) is formed in the Lower Cambrian black shale and
Sharareh Heshmatnia   +2 more
doaj   +1 more source

Bone Marrow Macrophage STING Signaling is a Direct Nexus Linking Marrow Adipose Expansion to NAD+ Depletion and Osteogenic Decline in Skeletal Aging

open access: yesAdvanced Science, EarlyView.
This study reveals that during skeletal aging, bone marrow adipocyte‐derived sDPP4 primes STING signaling in macrophages. In combination with mitochondrial DNA, this signaling activates CD38 and depletes local NAD+/NMN, thereby impairing osteogenesis.
Zhichao Li   +12 more
wiley   +1 more source

Development of patient-tailored preoperative assessment of percutaneous vertebroplasty

open access: yesFrontiers in Surgery
Percutaneous vertebroplasty (PVP), a minimally invasive surgery technique, has become the common treatment for osteoporotic vertebral compression fractures (OVCF).
Yian Lu, Qunhua Jiang
doaj   +1 more source

Three-dimensional hard and soft tissue imaging of the human cochlea by scanning laser optical tomography (SLOT).

open access: yesPLoS ONE, 2017
The present study focuses on the application of scanning laser optical tomography (SLOT) for visualization of anatomical structures inside the human cochlea ex vivo. SLOT is a laser-based highly efficient microscopy technique which allows for tomographic
Nadine Tinne   +8 more
doaj   +1 more source

TNAP and PHOSPHO1 Function Synergistically to Afford Critical Control Over the Mineralization of the Postnatal Murine Skeleton

open access: yesAdvanced Science, EarlyView.
Biomineralization underpins skeletal development, yet its molecular control remains incompletely understood. Using a novel murine knockout model, this study reveals the essential and complementary roles of PHOSPHO1 and TNAP in postnatal skeletal development.
Lucie E. Bourne   +15 more
wiley   +1 more source

Liquid‐Responsive Shape‐Memory Nanofiber‐Reinforced Scaffolds for Cartilage Repair

open access: yesAdvanced Science, EarlyView.
A liquid‐responsive shape‐memory, nanofiber‐reinforced QCG scaffold combines conformal defect filling, an aligned architecture that is structurally permissive for endogenous cell infiltration, and sustained KGN release. This integrated design enhances BMSC viability, migratory activity, and chondrogenic differentiation and promotes hyaline cartilage ...
Jiyang Zeng   +8 more
wiley   +1 more source

Amorphous calcium phosphate nanoparticles-based mouthwash: preparation, characterization, and anti-bacterial effects

open access: yesGreen Chemistry Letters and Reviews, 2019
The objective of this study is to prepare a novel mouthwash that contains Amorphous Calcium Phosphate nanoparticles (ACP-NPs) in a chitosan aqueous solution in order to prevent and treat the existing enamel decalcification around the brackets and ...
Kimiya Pakravanan   +4 more
doaj   +1 more source

Persistent Zn2+ Influx‐Mediated Deacetylation of ANXA2 Regulates the “Zn2+‐Autophagic Flux” and Alleviates Intervertebral Disc Degeneration

open access: yesAdvanced Science, EarlyView.
Zinc transporter SLC39A14 sustains intracellular Zn2+ levels to activate SIRT3‑dependent ANXA2 deacetylation at K302. This modification weakens ANXA2‑mTOR binding and releases autophagic‑flux suppression in nucleus pulposus cells. Dysregulated Zn2+ homeostasis disrupts this axis to drive intervertebral disc degeneration.
Yuxin Jin   +23 more
wiley   +1 more source

Management of Mandibular Anterior Demineralisation Associated with Myofunctional Appliance: A Case Report [PDF]

open access: yesJournal of Clinical and Diagnostic Research
Myofunctional appliances encompass a diverse range of intraoral devices that rely on the intrinsic forces of the orofacial musculature for their functionality.
S Advaitha Narayan   +4 more
doaj   +1 more source

STING/Type I Interferon Pathway Activation Confers Multimodal Therapeutic Benefits in Osteomyelitis

open access: yesAdvanced Science, EarlyView.
STING/type I interferon signaling counteracts osteomyelitis through coordinated control of pain, bone destruction, and abscess formation. It inhibits pathogen‐induced nociceptor activation, restrains osteoclast‐mediated bone resorption, and suppresses IL‐1β‐driven neutrophil recruitment.
Yang Chen   +19 more
wiley   +1 more source

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