scholarly journals Radiation Pneumonitis in Thoracic Cancer Patients: Multi-Center Voxel-Based Analysis

Cancers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 3553
Author(s):  
Giuseppe Palma ◽  
Serena Monti ◽  
Roberto Pacelli ◽  
Zhongxing Liao ◽  
Joseph O. Deasy ◽  
...  

This study investigates the dose–response patterns associated with radiation pneumonitis (RP) in patients treated for thoracic malignancies with different radiation modalities. To this end, voxel-based analysis (VBA) empowered by a novel strategy for the characterization of spatial properties of dose maps was applied. Data from 382 lung cancer and mediastinal lymphoma patients from three institutions treated with different radiation therapy (RT) techniques were analyzed. Each planning CT and biologically effective dose map (α/β = 3 Gy) was spatially normalized on a common anatomical reference. The VBA of local dose differences between patients with and without RP was performed and the clusters of voxels with dose differences that significantly correlated with RP at a p-level of 0.05 were generated accordingly. The robustness of VBA inference was evaluated by a novel characterization for spatial properties of dose maps based on probabilistic independent component analysis (PICA) and connectograms. This lays robust foundations to the obtained findings that the lower parts of the lungs and the heart play a prominent role in the development of RP. Connectograms showed that the dataset can support a radiobiological differentiation between the main heart and lung substructures.

Diversity ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 580
Author(s):  
Hongyi Liu ◽  
Yufeng Zhang ◽  
Wei Xu ◽  
Yu Fang ◽  
Honghua Ruan

Identification based on conventional morphological characteristics is typically difficult and time-consuming. The development of molecular techniques provides a novel strategy that relies on specific mitochondrial gene fragments to conduct authentication. For this study, five newly sequenced partial mitogenomes of earthworms (Bimastos parvus, Dendrobaena octaedra, Eisenia andrei, Eisenia nordenskioldi, and Octolasion tyrtaeum) with lengths ranging from 14,977 to 15,715 were presented. Each mitogenome possessed a putative control region that resided between tRNA-Arg and tRNA-His. All of the PCGs were under negative selection according to the value of Ka/Ks. The phylogenetic trees supported the classification of Eisenia and Lumbricus; however, the trees based on cox1 did not. Through various comparisons, it was determined that cox1 fragments might be more suitable for molecular identification. These results lay the foundation for further phylogenetic studies on Lumbricidae.


RSC Advances ◽  
2020 ◽  
Vol 10 (18) ◽  
pp. 10431-10446
Author(s):  
Wenjing Sun ◽  
Yiran Jin ◽  
Shuai Guan ◽  
Mengxin Yang ◽  
Miaoting Zhang ◽  
...  

The experimental process flow.


2020 ◽  
Vol 21 (14) ◽  
pp. 5152 ◽  
Author(s):  
Silvia Gervasoni ◽  
Giulio Vistoli ◽  
Carmine Talarico ◽  
Candida Manelfi ◽  
Andrea R. Beccari ◽  
...  

(1) Background: Virtual screening studies on the therapeutically relevant proteins of the severe acute respiratory syndrome Coronavirus 2 (SARS-CoV-2) require a detailed characterization of their druggable binding sites, and, more generally, a convenient pocket mapping represents a key step for structure-based in silico studies; (2) Methods: Along with a careful literature search on SARS-CoV-2 protein targets, the study presents a novel strategy for pocket mapping based on the combination of pocket (as performed by the well-known FPocket tool) and docking searches (as performed by PLANTS or AutoDock/Vina engines); such an approach is implemented by the Pockets 2.0 plug-in for the VEGA ZZ suite of programs; (3) Results: The literature analysis allowed the identification of 16 promising binding cavities within the SARS-CoV-2 proteins and the here proposed approach was able to recognize them showing performances clearly better than those reached by the sole pocket detection; and (4) Conclusions: Even though the presented strategy should require more extended validations, this proved successful in precisely characterizing a set of SARS-CoV-2 druggable binding pockets including both orthosteric and allosteric sites, which are clearly amenable for virtual screening campaigns and drug repurposing studies. All results generated by the study and the Pockets 2.0 plug-in are available for download.


2018 ◽  
Vol 16 (8) ◽  
pp. 4261-4274 ◽  
Author(s):  
K. Oszust ◽  
A. Gryta ◽  
K. Ziemiński ◽  
N. Bilińska-Wielgus ◽  
R. Gałązka ◽  
...  

2016 ◽  
Vol 40 (1) ◽  
pp. 485-491 ◽  
Author(s):  
Wenbo Chen ◽  
Yuhua Wang ◽  
Wei Zeng ◽  
Shaochun Han ◽  
Gen Li ◽  
...  

The design and characterization of a novel color tunable long persistent composite phosphor through radiative energy transfer.


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