Results 21 to 30 of about 1,705,145 (242)

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

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

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

The observed clustering of damaging extra-tropical cyclones in Europe [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2015
Abstract. The clustering of severe European windstorms on annual timescales has substantial impacts on the re/insurance industry. Management of the risk is impaired by large uncertainties in estimates of clustering from historical storm datasets typically covering the past few decades. The uncertainties are unusually large because clustering depends on
openaire   +3 more sources

Inventory of sparse forest populations using adaptive cluster sampling

open access: yesSilva Fennica, 2006
In many studies, adaptive cluster sampling (ACS) proved to be a powerful tool for assessing rare clustered populations that are difficult to estimate by means of conventional sampling methods.
Talvitie, Mervi   +2 more
doaj   +1 more source

Clustered DNA Damage: Electronic Properties and Their Influence on Charge Transfer. 7,8-Dihydro-8-Oxo-2′-Deoxyguaosine Versus 5′,8-Cyclo-2′-Deoxyadenosines: A Theoretical Approach

open access: yesCells, 2020
Approximately 3 × 1017 DNA damage events take place per hour in the human body. Within clustered DNA lesions, they pose a serious problem for repair proteins, especially for iron−sulfur glycosylases (MutyH), which can recognize them by the ...
Boleslaw T. Karwowski
doaj   +1 more source

Chemical aspects of clustered DNA damage induction by ionising radiation.

open access: yes, 2016
Ionising radiation induces a variety of chemical modifications to DNA, ranging from simple, isolated lesions to clustered DNA damage, in which two or more lesions are formed within a few tens of base pairs by a single radiation track. Multiple lesions, e.

core   +1 more source

How Clustered DNA Damage Can Change the Electronic Properties of ds-DNA—Differences between GAG, GAOXOG, and OXOGAOXOG

open access: yesBiomolecules, 2023
Every 24 h, roughly 3 × 1017 incidences of DNA damage are generated in the human body as a result of intra- or extra-cellular factors. The structure of the formed lesions is identical to that formed during radio- or chemotherapy.
Boleslaw Karwowski
doaj   +1 more source

Repair of clustered uracil DNA damages in Escherichia coli [PDF]

open access: yesNucleic Acids Research, 2003
Multiply damaged sites (MDS) are defined as greater than/equal to two lesions within 10-15 bp and are generated in DNA by ionizing radiation. In vitro repair of closely opposed base damages > or =2 bp apart results in a double strand break (DSB). This work extends the in vitro studies by utilizing clusters of uracil DNA damage as model lesions to ...
Dwain I, D'souza, Lynn, Harrison
openaire   +2 more sources

Processing of clustered DNA damage generates additional double-strand breaks in mammalian cells post-irradiation.

open access: yes, 2004
Clustered DNA damage sites, in which two or more lesions are formed within a few helical turns of the DNA after passage of a single radiation track, are signatures of DNA modifications induced by ionizing radiation in mammalian cells.
de Lara, C   +5 more
core   +1 more source

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