Results 51 to 60 of about 505,350 (314)

Reduction of radiation exposure to operating physician and assistant using a real-time auditory feedback dosimeter during femoral artery puncturing: a study on swine model

European Radiology Experimental, 2019
Background Real-time dosimeters may create a relatively safer environment not only for the patient but also for the physician and the assistant as well. We propose the use of a real-time radiation measurement dosimeter having auditory feedback to reduce ...
Muhammad Umair Ahmad Khan, Byung-Ju Yi
doaj   +1 more source

Skin Manifestations after Ionizing Radiation Exposure: A Systematic Review

Bioengineering, 2021
Morphological and functional skin alterations secondary to the action of ionizing radiation are well documented. In addition to its application in the medical field, ionizing radiation represents a public health problem for diagnostic and therapeutic ...
Luigi Bennardo, Maria Passante, Norma Cameli, Antonio Cristaudo, Cataldo Patruno, Steven Paul Nisticò, Martina Silvestri   +6 more
doaj   +1 more source

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

Molecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu, Xixi Lin, Emil Mladenov, Veronika Mladenova, Jürgen Thomale, Ali Sak, Yao Wang, Yunxuan Deng, Eleni Gkika, Martin Stuschke, George Iliakis   +10 more
wiley   +1 more source

RADIATION EXPOSURE DURING SPINE SURGERY USING C-ARM FLUOROSCOPY [PDF]

Acta Ortopédica Brasileira, 2019
Objective: To evaluate the radiation dose received by staff in spine surgeries, including those who are not considered occupationally exposed workers.
Alexandre Fogaça Cristante, Fábio Barbieri, Almy Anacleto Rodrigues da Silva, José Claudio Dellamano   +3 more
doaj   +1 more source

Measurement of UVA Exposure to Solar Radiation [PDF]

, 1996
Exposure to solar UVA radiation can lead to damage of DNA and other types of skin disorder. Conventional dosimetry using a single piece of polysulphone or CR-39 cannot provide accurate measurement of biologically effective irradiance for erythema for the
Parisi, A. V., J. C. F. Wong, Wong, J. C. F., A. V. Parisi   +3 more
core   +1 more source

Loss of IGF‐1R impairs DNA‐PKcs recruitment to chromatin leading to defective end‐joining

Molecular Oncology, EarlyView.
IGF‐1R promotes radioresistance by facilitating DNA‐PKcs recruitment to chromatin, enabling non‐homologous end‐joining (NHEJ) repair of double‐strand breaks. Inhibition or loss of IGF‐1R disrupts this recruitment to damage sites, driving compensatory reliance on microhomology‐mediated end‐joining (MMEJ) repair.
Matthew O. Ellis, Jack V. Mills, Wojciech Niedzwiedz, Valentine M. Macaulay   +3 more
wiley   +1 more source

Loss of proton‐sensing TDAG8 increases tumor progression in mouse models of colon cancer

Molecular Oncology, EarlyView.
Loss of the pH‐sensing receptor TDAG8 accelerates colorectal cancer progression in mice. Animals lacking TDAG8 expression had increased tumor growth, DNA damage, and recruitment of tumor‐associated immune cells, including macrophages, neutrophils, and monocytes.
Ermanno Malagola, Yasmine Illi, Anna Bircher, Marijn Wilmink, Rachele F. Malagutti, Solenn Ottié, Cordelia Schuler, Pedro A. Ruiz, Cheryl de Vallière, Klaus Seuwen, Gerhard Rogler, Martin Hausmann   +11 more
wiley   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Reduction of operator radiation exposure using a passive robotic device during fluoroscopy-guided arterial puncture: an experimental study in a swine model

European Radiology Experimental, 2019
Background Vascular interventions imply radiation exposure to the operating physician (OP). To reduce radiation exposure, we propose a novel passive robotic device for fluoroscopy-guided arterial puncturing.
Muhammad Umair Ahmad Khan, Chang-Hwan Yoon, Byung-Ju Yi   +2 more
doaj   +1 more source

The hidden risk of ionizing radiation in the operating room: a survey among 258 orthopaedic surgeons in Brazil

Patient Safety in Surgery, 2020
Background This study aims to assess orthopaedic surgeon knowledge in Brazil about ionizing radiation and its health implications on surgical teams and patients. Methods A 15-question survey on theoretical and practical concepts of ionizing radiation was
Robinson Esteves Pires, Igor Guedes Nogueira Reis, Ângelo Ribeiro Vaz de Faria, Vincenzo Giordano, Pedro José Labronici, William Dias Belangero   +5 more
doaj   +1 more source