Results 21 to 30 of about 29,680 (229)

Loss of vesicular dopamine release precedes tauopathy in degenerative dopaminergic neurons in a Drosophila model expressing human tau. [PDF]

open access: yes, 2013
While a number of genome-wide association studies have identified microtubule-associated protein tau as a strong risk factor for Parkinson's disease (PD), little is known about the mechanism through which human tau can predispose an individual to this ...
Chang, Hui-Yun   +6 more
core   +2 more sources

Complementing Prostate SBRT VMAT With a Two-Beam Non-Coplanar IMRT Class Solution to Enhance Rectum and Bladder Sparing With Minimum Increase in Treatment Time

open access: yesFrontiers in Oncology, 2021
PurposeEnhance rectum and bladder sparing in prostate SBRT with minimum increase in treatment time by complementing dual-arc coplanar VMAT with a two-beam non-coplanar IMRT class solution (CS).MethodsFor twenty patients, an optimizer for automated multi ...
Abdul Wahab M. Sharfo   +5 more
doaj   +1 more source

Correlation of Matrix Metalloproteinases and Tissue Inhibitors of Matrix Metalloproteinase Expression in Ileal Carcinoids, Lymph Nodes and Liver Metastasis with Prognosis and Survival [PDF]

open access: yes, 2009
Purpose: Ileal carcinoids are gut epithelial tumors originating from serotonin-containing enterochromaffin (EC) cells. Therapeutic options for effectively inhibiting the growth and spread of metastatic carcinoids are still limited.
Baur, Dorothee M.   +8 more
core   +2 more sources

Dosimetric Comparison of Three - Dimensional Conformal Radiation Therapy (3DCRT) and Posterior Partial Arc Volumetric Modulated Arc Therapy (VMAT) Plan for Craniospinal Irradiation [PDF]

open access: yesIranian Journal of Medical Physics, 2023
Introduction: This study compares three dimensional conformal radiotherapy (3DCRT) and Posterior Partial Arc volumetric modulated arc therapy (VMAT) planning techniques for treating craniospinal irradiation.
Neenu Tomy   +3 more
doaj   +1 more source

The Birmingham Boron Neutron Capture Therapy (BNCT) project : developments towards selective internal particle therapy [PDF]

open access: yes, 2011
This paper will review progress on two aspects of the Birmingham BNCT project. Firstly on evaluation of the effects of high and low LET radiations when delivered simultaneously, and secondly on attempts to optimise delivery of the boron carrier compound ...
Boddy, A.   +23 more
core   +1 more source

A bi-objective optimization model for planning the treatment of cancer cells by volumetric modulated arc therapy [PDF]

open access: yesمجله مدل سازی در مهندسی, 2021
Cancer, one of the leading causes of death in the world, has been on the rise in recent years and is expected to continue in the coming years. Therefore, the importance of developing a cancer control program and the need to provide effective methods is ...
Taha Keshavarz
doaj   +1 more source

Feasibility of 3D tracking and adaptation of VMAT based on VMAT-CT

open access: yesRadiotherapy and Oncology, 2020
Local computed tomography (CT) reconstruction is achievable with portal images acquired during volumetric-modulated arc therapy (VMAT) delivery and was named as VMAT-CT. However, the application of VMAT-CT is limited because it has limited field of view and no density information.
Xiaodong, Zhao, Rui, Zhang
openaire   +3 more sources

Effective Organs-at-Risk Dose Sparing in Volumetric Modulated Arc Therapy Using a Half-Beam Technique in Whole Pelvic Irradiation

open access: yesFrontiers in Oncology, 2021
BackgroundAlthough there are some controversies regarding whole pelvic radiation therapy (WPRT) due to its gastrointestinal and hematologic toxicities, it is considered for patients with gynecological, rectal, and prostate cancer.
Hyunsoo Jang   +16 more
doaj   +1 more source

Lipid peroxidation and apoptotic response in rat brain areas induced by long-term administration of nandrolone: the mutual crosstalk between ROS and NF-kB [PDF]

open access: yes, 2016
The aim of this study was to evaluate the played by oxidative stress in the apoptotic response in different brain areas of rats chronically treated with supra-physiological doses of nandrolone decanoate (ND).
Busardo', FRANCESCO PAOLO   +9 more
core   +2 more sources

Comparison of dosimetric characteristics between flattening filter‐free and flattening filter mode volumetric‐modulated arc therapy plans in rectal cancer

open access: yesPrecision Radiation Oncology, 2021
Objective We aimed to compare the dosimetric characteristics of 6‐MV flattening filter mode (FF) and flattening filter‐free mode (FFF) volumetric‐modulated arc therapy (VMAT) plans in preoperative radiotherapy for rectal cancer using an Edge linear ...
Zhen Ding   +5 more
doaj   +1 more source

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