Results 121 to 130 of about 248,416 (349)

Densitometry

open access: yes
AbstractThis chapter describes various densitometry techniques that involve measurement of photon absorption at a single energy and at multiple energies and measurement of differential photon attenuation across absorption edges. Covered in the chapter include single-line, multiple-energy, absorption-edge, and hybrid K-edge densitometry.
R. Venkataraman   +3 more
openaire   +1 more source

Bone Densitometry in Children and Adolescents

open access: yesPediatrics, 2016
Concerns about bone health and potential fragility in children and adolescents have led to a high interest in bone densitometry. Pediatric patients with genetic and acquired chronic diseases, immobility, and inadequate nutrition may fail to achieve ...
L. Bachrach, C. Gordon
semanticscholar   +1 more source

GHRHR Deficiency Enhances Retinal Ganglion Cell Survival and Visual Functions in Experimental Glaucoma by Inhibiting Ferroptosis

open access: yesAdvanced Science, EarlyView.
Glaucoma, a major cause of blindness, involves retinal ganglion cell (RGC) degeneration. This study shows growth hormone‐releasing hormone receptor (GHRHR) deficiency preserves RGC survival and restores vision, unlike activation which only aids survival.
Yan Tong   +24 more
wiley   +1 more source

Determination of Bone Biotypes in the Region of Maxillary Teeth in Adult Men Using Cone Beam Computed Tomography

open access: yesИнновационная медицина Кубани
Background: Bone density has prognostic significance in planning the surgical phase with implant-supported fixed prostheses and affects the surgical success and choice of implant design and shape.Objective: To determine bone biotypes in a region of ...
S. E. Baybakov   +6 more
doaj   +1 more source

Formaldehyde Densitometry of Galactic Star-Forming Regions Using the H2CO 3(12)-3(13) and 4(13)-4(14) Transitions

open access: yes, 2011
We present Green Bank Telescope (GBT) observations of the 3(12)-3(13) (29 GHz) and 4(13)-4(14) (48 GHz) transitions of the H2CO molecule toward a sample of 23 well-studied star-forming regions.
Alwyn Wootten   +59 more
core   +1 more source

MG53 Coordinates Macrophage Polarization and Neuroimmune Coupling to Promote Corneal Nerve Regeneration via the MPEG1–MVP–STAT6 Axis

open access: yesAdvanced Science, EarlyView.
Corneal nerve regeneration is critical to corneal wound healing processes. The current study reveals a novel role of MG53 in promoting corneal nerve regeneration after alkali induced injury. Mechanistically, MG53 enters macrophages via its receptor, MPEG1, promotes MVP K63 ubiquitination, and triggers STAT6 induced repair‐related genes expression ...
Peng Chen   +14 more
wiley   +1 more source

mGluR5 in ECCCK to BLA Circuit Modulates Depressive‐Like Phenotypes through CCK Signaling

open access: yesAdvanced Science, EarlyView.
Dysregulation of mGluR5 and CCK signaling contributes to major depressive disorder, yet circuit‐level mechanisms remain unclear. Here, the ECCCK→BLA pathway is identified as a critical regulator of affective behavior. mGluR5 modulates synaptic function and CCK signaling within this circuit, controlling stress susceptibility and depressive‐like states ...
Muhammad Asim   +4 more
wiley   +1 more source

Topometric Indices And Corneal Densitometry Change After Corneal Refractive Surgery Combined With Simultaneous Collagen Crosslinking

open access: yesClinical Ophthalmology, 2019
Yonrawee Piyacomn, Ngamjit Kasetsuwan, Vilavun Puangsricharern, Usanee Reinprayoon, Vannarut Satitpitakul, Patchima Chantaren Department of Ophthalmology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok ...
Piyacomn Y   +5 more
doaj  

Osteoporosis of the spine as a multidisciplinary problem and life condition of patients

open access: yesМедицинский совет, 2015
Healthcare practitioners specializing in different areas deal with osteoporosis due to the growing incidence and prevalence of the disease as well as a variety of clinical manifestations.
V. G. Pomnikov   +3 more
doaj   +1 more source

Disruption of the SNRPF–DDX24–E2F4 Feedback Loop Uncouples Splicing and Transcriptional Regulation to Suppress Ovarian Cancer Progression

open access: yesAdvanced Science, EarlyView.
This study identifies SNRPF as a critical oncogenic driver in ovarian cancer. By regulating a self‐sustaining SNRPF–DDX24–E2F4 feedback loop through intron retention and nonsense‐mediated decay, SNRPF couples RNA splicing with transcriptional regulation to promote tumor progression.
Yingwei Li   +4 more
wiley   +1 more source

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