Results 31 to 40 of about 82,841 (227)

Clustered DNA damage induced by heavy ion particles

open access: yesBiological Sciences in Space, 2004
Clustered DNA damage (locally multiply damaged site) is thought to be a critical lesion caused by ionizing radiation, and high LET radiation such as heavy ion particles is believed to produce high yields of such damage. Since heavy ion particles are major components of ionizing radiation in a space environment, it is important to clarify the chemical ...
Hiroaki, Terato, Hiroshi, Ide
openaire   +3 more sources

Coupling Radiation Transport and Track-Structure Simulations: Strategy Based on Analytical Formulas Representing DNA Damage Yields

open access: yesFrontiers in Physics, 2021
Existing radiation codes for biomedical applications face the challenge of dealing with largely different spatial scales, from nanometer scales governing individual energy deposits to macroscopic scales of dose distributions in organs and tissues in ...
Pavel Kundrát   +4 more
doaj   +1 more source

Site-specific targeting of a light activated dCas9-KillerRed fusion protein generates transient, localized regions of oxidative DNA damage.

open access: yesPLoS ONE, 2020
DNA repair requires reorganization of the local chromatin structure to facilitate access to and repair of the DNA. Studying DNA double-strand break (DSB) repair in specific chromatin domains has been aided by the use of sequence-specific endonucleases to
Nealia C M House   +3 more
doaj   +1 more source

Molecular Mechanisms of Specific Cellular DNA Damage Response and Repair Induced by the Mixed Radiation Field During Boron Neutron Capture Therapy

open access: yesFrontiers in Oncology, 2021
The impact of a mixed neutron-gamma beam on the activation of DNA damage response (DDR) proteins and non-coding RNAs (ncRNAs) is poorly understood.
Kamila Maliszewska-Olejniczak   +5 more
doaj   +1 more source

Visualization of complex DNA damage along accelerated ions tracks

open access: yesEPJ Web of Conferences, 2018
The most deleterious DNA lesions induced by ionizing radiation are clustered DNA double-strand breaks (DSB). Clustered or complex DNA damage is a combination of a few simple lesions (single-strand breaks, base damage etc.) within one or two DNA helix ...
Kulikova Elena   +5 more
doaj   +1 more source

Which DNA Damage is Likely to Be Relevant in Hormetic Responses?

open access: yesDose-Response, 2008
Working under the assumption that hormesis is triggered by specific types of DNA damage, this report focuses on the types of damage which form the signature of ionizing radiation.
William A. Bernhard   +2 more
doaj   +1 more source

Formation of Clustered DNA Damage after High-LET Irradiation: A Review [PDF]

open access: yesJournal of Radiation Research, 2008
Radiation can cause as well as cure cancer. The risk of developing radiation-induced cancer has traditionally been estimated from cancer incidence among survivors of the atomic bombs in Hiroshima and Nagasaki.(1)) These data provide the best estimate of human cancer risk over the dose range for low linear energy transfer (LET) radiations, such as X- or
Megumi, Hada, Alexandros G, Georgakilas
openaire   +2 more sources

Methods for Enhancing Clustered Regularly Interspaced Short Palindromic Repeats/Cas9-Mediated Homology-Directed Repair Efficiency

open access: yesFrontiers in Genetics, 2019
The evolution of organisms has provided a variety of mechanisms to maintain the integrity of its genome, but as damage occurs, DNA damage repair pathways are necessary to resolve errors.
Xi-Dian Tang   +5 more
doaj   +1 more source

Glutathione depletion and carbon ion radiation potentiate clustered DNA lesions, cell death and prevent chromosomal changes in cancer cells progeny. [PDF]

open access: yesPLoS ONE, 2012
Poor local control and tumor escape are of major concern in head-and-neck cancers treated by conventional radiotherapy or hadrontherapy. Reduced glutathione (GSH) is suspected of playing an important role in mechanisms leading to radioresistance, and its
Maïté Hanot   +8 more
doaj   +1 more source

Dissociation Dynamics of XPC-RAD23B from Damaged DNA Is a Determining Factor of NER Efficiency. [PDF]

open access: yesPLoS ONE, 2016
XPC-RAD23B (XPC) plays a critical role in human nucleotide excision repair (hNER) as this complex recognizes DNA adducts to initiate NER. To determine the mutagenic potential of structurally different bulky DNA damages, various studies have been ...
Benjamin Hilton   +6 more
doaj   +1 more source

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