Results 41 to 50 of about 152,789 (312)

Ionizing Radiation in Medical Imaging and Efforts in Dose Optimization [PDF]

open access: yes, 2012
Medical-related radiation is the largest source of controllable radiation exposure to humans and it accounts for more than 95% of radiation exposure from man-made sources.
Carl A. Roobottom   +4 more
core   +2 more sources

Ionizing Radiation and Life [PDF]

open access: yesAstrobiology, 2011
Ionizing radiation is a ubiquitous feature of the Cosmos, from exogenous cosmic rays (CR) to the intrinsic mineral radioactivity of a habitable world, and its influences on the emergence and persistence of life are wide-ranging and profound. Much attention has already been focused on the deleterious effects of ionizing radiation on organisms and the ...
openaire   +3 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Risk Factors for Childhood Leukemia: Radiation and Beyond

open access: yesFrontiers in Public Health, 2021
Childhood leukemia (CL) is undoubtedly caused by a multifactorial process with genetic as well as environmental factors playing a role. But in spite of several efforts in a variety of scientific fields, the causes of the disease and the interplay of ...
Janine-Alison Schmidt   +7 more
doaj   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

Synergic Effect of TC99-m Gamma Radiation and Non-ionizing Radiation of Wi-Fi on Count, Morphology and Motility of Sperms in Rats: An Experimental Study

open access: yesIranian South Medical Journal, 2020
Background: Given the effects of ionizing radiation on biological tissues and their irreversible tissue damage, this project aimed to determine the synergic effect of TC99-m gamma radiation and non-ionizing radiation of Wi-Fi on sperm characteristics in ...
Farshid Gheisari   +2 more
doaj  

Effect of Microwave Wi-Fi Radiation at Frequency of 2.4 GHz on Epileptic Behavior of Rats

open access: yesJournal of Biomedical Physics and Engineering, 2018
Background: Electromagnetic fields (EMF) with different intensities are widely used at home, offices and public places.Today, there is a growing global concern about the effects of human exposure to EMFs.
Mahmoudi A.   +4 more
doaj   +1 more source

Intermediate frequency magnetic field at 250.8 kHz does not induce DNA damage or “Adaptive Response” in vitro

open access: yesGenetics & Applications, 2019
The aim of this study was to examine whether intermediate frequency (IF) magnetic field (MF) induces genotoxic effects or play a role in the induction of adaptive response after combined exposure to IF MF and ionizing radiation in leukocytes and in ...
Zsuzsanna Németh   +5 more
doaj   +3 more sources

Longitudinal circulating tumor DNA profiling in patients with advanced endometrial cancer using an off‐the‐shelf targeted NGS panel

open access: yesMolecular Oncology, EarlyView.
Intratumour heterogeneity complicates precision management of advanced endometrial cancer. Circulating tumor DNA (ctDNA) offers a minimally invasive strategy to capture tumor evolution and therapeutic resistance. Here, we compare tumor‐agnostic NGS with tumor‐informed ddPCR, outlining their relative sensitivity, concordance, and clinical implications ...
Carlos Casas‐Arozamena   +15 more
wiley   +1 more source

Sensitization of Vascular Endothelial Cells to Ionizing Radiation Promotes the Development of Delayed Intestinal Injury in Mice. [PDF]

open access: yes, 2021
Exposure of the gastrointestinal (GI) tract to ionizing radiation can cause acute and delayed injury. However, critical cellular targets that regulate the development of radiation-induced GI injury remain incompletely understood.
Kirsch, David G   +9 more
core   +1 more source

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