Results 21 to 30 of about 4,941,059 (260)

Transcriptome analysis of low-dose ionizing radiation-impacted genes in CD4+ T-cells undergoing activation and regulation of their expression of select cytokines

open access: yesJournal of Immunotoxicology, 2018
Immune cells are known as the most sensitive tissue for ionizing radiation. Numerous reports relating with the effect of low-dose ionizing radiation (LDIR) on immune activities showed that LDIR can induce immune-potentiation via modulating the activity ...
Seong-Jun Cho   +4 more
doaj   +1 more source

Reduction in radiation exposure in cardiovascular computed tomography imaging: results from the PROspective multicenter registry on radiaTion dose Estimates of cardiac CT angIOgraphy iN daily practice in 2017 (PROTECTION VI)

open access: yesEuropean Heart Journal, 2018
Aims Advances of cardiac computed tomography angiography (CTA) have been developed for dose reduction, but their efficacy in clinical practice is largely unknown.
T. Stocker   +120 more
semanticscholar   +1 more source

Tissue distribution, excretion and effects on genotoxicity of tritium following oral administration to rats

open access: yesNuclear Engineering and Technology, 2019
Tritium is an important nuclide that must be monitored for radiation safety management. In this study, HTO was orally administered to rats at the level of 37 kBq (1 μCi) or 370 kBq (10 μCi) to examine tissue distribution and excretion levels.
Jei Ha Lee   +7 more
doaj   +1 more source

Practical Strategies to Reduce Pediatric CT Radiation Dose

open access: yesJournal of the American College of Radiology, 2014
Thomas R Nelson
exaly   +2 more sources

Low dose ionizing radiation effects on the immune system

open access: yesEnvironment International, 2020
Ionizing radiation interacts with the immune system in many ways with a multiplicity that mirrors the complexity of the immune system itself: namely the need to maintain a delicate balance between different compartments, cells and soluble factors that ...
K. Lumniczky   +8 more
semanticscholar   +1 more source

Radiation Carcinogenesis at Low Doses [PDF]

open access: yesScience, 1972
An analysis of experimental findings indicates that the induction of a mammary neoplasm in the Sprague-Dawley rat is dependent on the action of radiation on more than one cell. Although a linear relation between incidence and x-ray dose might be consistent with available data, such a relation would be fortuitous and linear extrapolation to lower doses ...
Rossi, H. H., Kellerer, Albrecht M.
openaire   +3 more sources

Radiation Dose Associated with Common Computed Tomography Examinations and the Associated Lifetime Attributable Risk of Cancer

open access: yesArchives of Internal Medicine, 2009
Background Use of computed tomography (CT) for diagnostic evaluation has increased dramatically over the past two decades. Even though CT is associated with substantially higher radiation exposure than conventional x-rays, typical clinical doses are not ...
R. Smith-Bindman   +7 more
semanticscholar   +1 more source

Identification and characterization of patients being exposed to computed-tomography associated radiation-doses above 100 mSv in a real-life setting.

open access: yesEuropean Journal of Radiology Open, 2023
Rationale and objectives: Patients receiving high cumulative effective doses (CED) from recurrent computed tomography (CT) in a real-life setting are not well identified.
Gerlig Widmann   +11 more
doaj   +1 more source

Cerebral cortex regions selectively vulnerable to radiation dose-dependent atrophy

open access: yesInternational Journal of Radiation Oncology, Biology, Physics, 2017
Purpose/Objectives Neurologic deficits after brain radiotherapy (RT) typically involve decline in higher-order cognitive functions such as attention and memory rather than sensory defects or paralysis.
T. Seibert   +15 more
semanticscholar   +1 more source

Analysis of simultaneous time series of indoor, outdoor and soil air radon concentrations, meteorological and seismic data

open access: yesNukleonika, 2016
It is well known that the temporal dynamic of indoor and outdoor radon concentrations show complex patterns, which are partly not easy to interpret. Clearly, for physical reasons, they must be related to possibly variable conditions of radon generation ...
Janik Mirosław, Bossew Peter
doaj   +1 more source

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