Results 71 to 80 of about 379,825 (357)

Interpretation of the WHO 2022 classification of head and neck tumours (5th Edition): The epithelial tumours of oral cavity and mobile tongue

open access: yesKouqiang hemian waike zazhi
The 5th edition of the Classification of Head and Neck Tumours by the World Health Organization (WHO) was published in March 2022. In the section on oral cavity and mobile tongue tumours, the classification of epithelial tumours in the 5th edition has ...
LI Jinwei   +5 more
doaj   +1 more source

DEL‐1 is an Endogenous Senolytic Protein that Inhibits Senescence‐Associated Bone Loss

open access: yesAdvanced Science, EarlyView.
Senescent bone marrow stromal cells accumulate in the aging bone microenvironment, promoting bone degeneration. DEL‐1, an endogenous secreted protein, acts as a natural senolytic that selectively eliminates these cells. By engaging a β3 integrin/CD73/adenosine/p38 MAPK/BCL‐2 pathway, DEL‐1 counters aging‐related bone loss, revealing promising ...
Jong‐Hyung Lim   +11 more
wiley   +1 more source

Research progress on the effect and mechanism of immune cells on osteogenic differentiation of bone marrow mesenchymal stem cells

open access: yesKouqiang hemian waike zazhi
The role of bone marrow mesenchymal stem cells (BMSCs) in bone defect repair and bone regeneration has been extensively studied. Much evidence suggests that effective endogenous bone regeneration requires coordination of the immune system.
SHI Yan   +5 more
doaj   +1 more source

General tooth boundary conditions for equation free modelling [PDF]

open access: yes, 2006
We are developing a framework for multiscale computation which enables models at a ``microscopic'' level of description, for example Lattice Boltzmann, Monte Carlo or Molecular Dynamics simulators, to perform modelling tasks at ``macroscopic'' length ...
Kevrekidis, I. G., Roberts, A. J.
core   +2 more sources

Early Tooth Development

open access: yesMedEdPORTAL, 2012
Abstract Introduction The challenge of teaching the subject of tooth development lies in the explanation of a complicated three-dimensional process occurring within a small, confined space over a period of time. Further, there are few illustrations available to dental educators and most of them are two-dimensional.
openaire   +2 more sources

Geometrically Encoded Positioning of Introns, Intergenic Segments, and Exons in the Human Genome

open access: yesAdvanced Science, EarlyView.
This study introduces a new hypothesis: exons, introns, and intergenic segments are non‐random projections of the functional layers of 3D structure of chromatin packing domains. Evidence is presented that this “geometric code” may encode volumetric structure, reconciling epigenetic patterns, correlates with oncogenic mutations, acting as a potential ...
Luay M. Almassalha   +11 more
wiley   +1 more source

Moving an incisor across the midline: A treatment alternative in an adolescent patient [PDF]

open access: yes, 2011
A 13-year-old sought treatment for a severely compromised maxillary left central incisor and an impacted fully developed left canine. Extraction of both teeth became necessary.
Bosio, Jose A   +2 more
core   +1 more source

The dental management of patients at risk of medication-related osteonecrosis of the jaw: New paradigm of primary prevention [PDF]

open access: yes, 2018
Medication-related osteonecrosis of the jaw (MRONJ) is a serious adverse reaction of antiresorptive and antiangiogenic agents; it is a potentially painful and debilitating condition that can considerably affect the quality of life of patients ...
Bedogni, Alberto   +7 more
core   +2 more sources

Human Atlas of Tooth Decay Progression: Identification of Cellular Mechanisms Driving the Switch from Dental Pulp Repair Toward Irreversible Pulpitis

open access: yesAdvanced Science, EarlyView.
Tooth decay progression transforms the dental pulp response from repair to fibrosis. At early stages, stromal cells reprogram to repair the extra cellular matrix (ECM), blood vessels, and nerves, remodel and grow, keeping repair possible. In advanced decay, hypoxia, and vessel regression, in complement with an immune switch, fuel nerve degeneration and
Hoang Thai Ha   +12 more
wiley   +1 more source

Artificial Bacteriophages for Treating Oral Infectious Disease via Localized Bacterial Capture and Enhanced Catalytic Sterilization

open access: yesAdvanced Science
With the rapid emergence of antibiotic‐resistant pathogens, nanomaterial‐assisted catalytic sterilization has been well developed to combat pathogenic bacteria by elevating the level of reactive oxygen species including hydroxyl radical (·OH).
Xiaocan Liu   +7 more
doaj   +1 more source

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