Results 71 to 80 of about 5,305 (247)

Experimental Combat-Stress Model in Rats: Histological Examination of Effects of Amelogenesis-A Possible Measure of Diminished Vagal Tone Episodes [PDF]

open access: yes, 2004
Developmental defects of enamel-stress histomarker rings (accentuated striae) may be a potential measure of diminished vagal tone in research on extreme stress such as exposure to combat.
Blanchard, Dr. D. Caroline   +4 more
core  

Ameloblastic carcinoma

open access: yesJournal of Indian Academy of Oral Medicine and Radiology, 2009
Ameloblastoma of jaws are common and locally destructive tumors originating from odontogenic apparatus. They constitute approximately 1% of all jaw tumors with 80% occurring in the mandible. Ameloblastoma exhibiting a frank malignancy is a rare entity and occurs in less than 1% of all ameloblastomas. Among the two jaws, ameloblastic carcinoma involving
Praveen B Kumar   +4 more
openaire   +2 more sources

Ameloblasts in Health and Disease

open access: yesDentistry and Medical Research, 2021
Abstract Ameloblasts are highly sensitive enamel-forming cells. They are derived from ectoderm and undergo a series of transformative changes in their life cycle. The functional efficiency of ameloblasts depends on various factors such as intracellular and extracellular environment, epithelial–mesenchymal interactions, and ...
Avinash Tamgadge   +2 more
openaire   +3 more sources

Optical Metasurfaces for the Next‐Generation Biosensing and Bioimaging

open access: yesLaser &Photonics Reviews, EarlyView.
Recent advances in this understanding of light‐matter interactions, combined with innovations in the design and fabrication of large‐scale nanostructured metasurfaces, have enabled transformative approaches to biosensing and bioimaging. This review explores innovations in refractometric sensing, surface‐enhanced spectroscopy, and super‐resolution ...
Anthony J. El‐Helou   +6 more
wiley   +1 more source

Rho GTPases in ameloblast differentiation

open access: yesJapanese Dental Science Review, 2016
During tooth development, ameloblasts differentiate from inner enamel epithelial cells to enamel-forming cells by modulating the signal pathways mediating epithelial–mesenchymal interaction and a cell-autonomous gene network.
Keishi Otsu, Hidemitsu Harada
doaj   +1 more source

Ameloblastic fibrosarcoma – A rarity?

open access: yesJPRAS Open, 2019
Ameloblastic fibrosarcoma (AFS) is a rare malignant odontogenic tumour classified by the WHO (1992) as an odontogenic sarcoma and defined as “a neoplasm with a similar structure to ameloblastic fibroma (AF) but in which the ectomesenchymal component shows the features of a sarcoma.” The first report of AFS was published by Heath in 1887.
M.S. Munisekhar   +5 more
openaire   +3 more sources

Paleo‐evo‐devo implications of a revised conceptualization of enameloids and enamels

open access: yesBiological Reviews, EarlyView.
ABSTRACT Understanding the origin and evolution of the mineralized skeleton is crucial for unravelling vertebrate history. However, several limitations hamper our progress. The first obstacle is the lack of uniformity and clarity in the literature for the definition of the tissues of concern, especially of enameloid(s) and enamel(s), resulting in ...
Guillaume Houée   +3 more
wiley   +1 more source

Optineurin Cooperates With NRF2 to Regulate Tooth Root Morphogenesis by Controlling Mitochondrial Dynamics and Apoptosis

open access: yesCell Proliferation, EarlyView.
OPTN interacts with NRF2 to facilitate the AKT/DRP1‐mediated regulation of mitochondrial fission in the cytoplasm of SCAPs, promoting tooth root mineralisation. Additionally, OPTN maintains NRF2's nuclear translocation, enhancing the transcriptional regulation of downstream BCL2, ultimately leading to the inhibition apoptosis in SCAPs and regulate ...
Haojie Liu   +9 more
wiley   +1 more source

Molecular mechanism for transcriptional regulation of the parathyroid hormone gene by Epiprofin

open access: yesThe FEBS Journal, EarlyView.
The secretion of parathyroid hormone (PTH) from the chief cells in the parathyroid glands is regulated by the concentration of extracellular calcium. Epiprofin (Epfn) expression is induced by NFATc2 in response to elevated serum calcium, and Epfn negatively regulates PTH production.
Takashi Nakamura   +8 more
wiley   +1 more source

Ameloblastic fibroma

open access: yesJournal of Indian Academy of Oral Medicine and Radiology, 2016
Ameloblastic fibroma, is a mixed odontogenic tumor, which commonly affects young children under the age of 20 years, with the mandibular premolar-molar region being the most common site of manifestation. This is a case report of a 25-year-old female with a swelling in the right posterior mandibular region since 4 months, which was subsequently ...
C H Lalitha   +3 more
openaire   +2 more sources

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