Results 61 to 70 of about 2,871,612 (244)

Recruitment kinetics of DNA repair proteins Mdc1 and Rad52 but not 53BP1 depend on damage complexity. [PDF]

open access: yes, 2012
The recruitment kinetics of double-strand break (DSB) signaling and repair proteins Mdc1, 53BP1 and Rad52 into radiation-induced foci was studied by live-cell fluorescence microscopy after ion microirradiation.
Hilmar Strickfaden (148181)   +35 more
core   +2 more sources

Advancements in primary radiation damage models and SRIM simulations: A review of radiation damage predictions

open access: yesNuclear Engineering and Technology
Evaluating radiation damage in materials and devices is vital for their use in extreme environments, but accurate predictions are challenging due to uncertainties in traditional models like Primary Radiation Damage Models (PRDMs) and modern simulations ...
Zulfiqar Ali   +5 more
doaj   +1 more source

Fixed-target serial oscillation crystallography at room temperature

open access: yesIUCrJ, 2019
A fixed-target approach to high-throughput room-temperature serial synchrotron crystallography with oscillation is described. Patterned silicon chips with microwells provide high crystal-loading density with an extremely high hit rate.
Jennifer L. Wierman   +16 more
doaj   +1 more source

Effect of terahertz irradiation on DNA damage repair in living cells

open access: yesFEBS Open Bio, EarlyView.
We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno   +3 more
wiley   +1 more source

Post-translational modification networks in tumor radiosensitivity: mechanistic insights and therapeutic opportunities

open access: yesJournal of Translational Medicine
Background Radiotherapy is a central modality in cancer management, yet intrinsic and acquired radioresistance and dose-limiting normal tissue toxicities continue to constrain durable tumor control.
Xiaoli Lv   +7 more
doaj   +1 more source

Radiation damage in small-molecule crystallography: fact not fiction

open access: yesIUCrJ, 2019
Traditionally small-molecule crystallographers have not usually observed or recognized significant radiation damage to their samples during diffraction experiments.
Jeppe Christensen   +6 more
doaj   +1 more source

Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley   +1 more source

Native SAD is maturing

open access: yesIUCrJ, 2015
Native SAD phasing uses the anomalous scattering signal of light atoms in the crystalline, native samples of macromolecules collected from single-wavelength X-ray diffraction experiments.
John P. Rose   +2 more
doaj   +1 more source

Type I interferons modulate autophagy to shape gemcitabine response in pancreatic cancer cells

open access: yesFEBS Open Bio, EarlyView.
Type I interferons differentially modulate autophagy and the response of pancreatic cancer cells to gemcitabine. IFNα2b stimulates autophagic flux and protects cells from gemcitabine‐induced cell death, contributing to chemoresistance. In contrast, IFNβ1a inhibits autophagosome formation and enhances gemcitabine‐induced cell death, resulting in ...
Lucy E. Bonilla   +10 more
wiley   +1 more source

Further Characterization of the Mitigation of Radiation Lethality by Protective Wounding

open access: yes, 2017
There continues to be a major effort in the United States to develop mitigators for the treatment of mass casualties that received high-intensity acute ionizing radiation exposures from the detonation of an improvised nuclear device during a radiological
Joy Garrett   +11 more
core   +1 more source

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