keyword
MENU ▼
Read by QxMD icon Read
search

Target volume

keyword
https://www.readbyqxmd.com/read/28735139/cumulative-intracranial-tumor-volume-and-number-of-brain-metastasis-as-predictors-of-developing-new-lesions-after-stereotactic-radiosurgery-for-brain-metastasis
#1
Mayur Sharma, Xuefei Jia, Manmeet Ahluwalia, Gene H Barnett, Michael A Vogelbaum, Samuel T Chao, John H Suh, Erin S Murphy, Jennifer S Yu, Lilyana Angelov, Alireza M Mohammadi
INTRODUCTION: The aim of our study was to identify risk factors associated with early distant radiographic progression in patients undergoing stereotactic radiosurgery (SRS) for brain metastases (BM). METHODS: Following IRB approval, data of 1427 patients (4283 BM lesions) who were treated using SRS at Cleveland Clinic from 2000-2012 were collected. Local tumor progression (LTP), distant tumor progression (DTP) and radiographic radiation necrosis (RN) were the primary end points...
July 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28734986/exogenous-hedgehog-antagonist-delays-but-does-not-prevent-fracture-healing-in-young-mice
#2
Xiaochen Liu, Jennifer A McKenzie, Clayton W Maschhoff, Michael J Gardner, Matthew J Silva
Fracture healing recapitulates many aspects of developmental osteogenesis. The hedgehog (Hh) signaling pathway, essential to skeletal development, is upregulated during fracture healing, although its importance is unclear. Our goal was to assess the functional importance of Hh signaling in endochondral fracture healing. We created closed, transverse diaphyseal femur fractures in mice, stabilized with an intramedullary pin, and administered a systemic Hh inhibitor or vehicle. Because Hh pathway activation is mediated by the receptor Smoothened (Smo), we used the Smo antagonist GDC-0449 (GDC, 50mg/kg, twice daily) to target the pathway...
July 19, 2017: Bone
https://www.readbyqxmd.com/read/28734789/weathered-mc252-crude-oil-induced-anemia-and-abnormal-erythroid-morphology-in-double-crested-cormorants-phalacrocorax-auritus-with-light-microscopic-and-ultrastructural-description-of-heinz-bodies
#3
Kendal E Harr, Fred L Cunningham, Chris A Pritsos, Karen L Pritsos, Thivanka Muthumalage, Brian S Dorr, Katherine E Horak, Katie C Hanson-Dorr, Karen M Dean, Dave Cacela, Andrew K McFadden, Jane E Link, Katherine A Healy, Pete Tuttle, Steven J Bursian
Injury assessment of birds following the Deepwater Horizon (DWH) oil spill in 2010 was part of the Natural Resource Damage Assessment. One reported effect was hemolytic anemia with the presence of Heinz bodies (HB) in birds, however, the role of route and magnitude of exposure to oil is unknown. The purpose of the present study was to determine if double-crested cormorants (Phalacocorax auritis; DCCO) exposed orally and dermally to artificially weathered crude oil would develop hemolytic anemia including HB and reticulocytosis...
July 19, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28734642/extreme-hypofractionation-for-high-risk-prostate-cancer-dosimetric-correlations-with-rectal-bleeding
#4
Glenn Bauman, Jeff Chen, George Rodrigues, Melanie Davidson, Andrew Warner, Andrew Loblaw
PURPOSE: We explored the association of dosimetric parameters with late rectal bleeding among high-risk prostate cancer patients treated with hypofractionated simultaneous in-field boost (H-SIB) to prostate with nodal treatment. METHODS AND MATERIALS: Rectal toxicity results and dose-volume histogram (DVH) information from patients treated on FASTR and SATURN were combined. Patients in both trials received long-term androgen deprivation and H-SIB with prescription dose 40 Gy to the prostate and proximal seminal vesicles and 25 Gy to the lymph nodes delivered over 5 weekly fractions using image guidance with cone beam computed tomography...
June 9, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28734269/crime-scene-reconstruction-sex-prediction-from-blood-stained-foot-sole-impressions
#5
Nabanita Basu, Samir Kumar Bandyopadhyay
It is often difficult to predict the sex of an individual based on bloody incomplete footprints. However, such prints/impressions are particularly common in a crime scene. Again variability in the texture, color of the target surface has an impact on the bloodstained impression formed. The study of bare foot, footprint, footwear (i.e. shoe, canvas etc.) within the legal context is referred to as forensic podiatry. Based on the fact that it is possible to predict the sex of an individual from footprint impressions, an automated model has been proposed in this paper for analyzing the sex of an individual from his/her broken/incomplete footprint impressions based on morphological features alone...
June 26, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28734051/a-user-s-guide-for-%C3%AE-synuclein-biomarker-studies-in-biological-fluids-perianalytical-considerations
#6
REVIEW
Brit Mollenhauer, Richard Batrla, Omar El-Agnaf, Douglas R Galasko, Hilal A Lashuel, Kalpana M Merchant, Lesley M Shaw, Dennis J Selkoe, Robert Umek, Hugo Vanderstichele, Henrik Zetterberg, Jing Zhang, Chelsea Caspell-Garcia, Chris Coffey, Samantha J Hutten, Mark Frasier, Peggy Taylor
Parkinson's disease biomarkers are needed to increase diagnostic accuracy, to objectively monitor disease progression and to assess therapeutic efficacy as well as target engagement when evaluating novel drug and therapeutic strategies. This article summarizes perianalytical considerations for biomarker studies (based on immunoassays) in Parkinson's disease, with emphasis on quantifying total α-synuclein protein in biological fluids. Current knowledge and pitfalls are discussed, and selected perianalytical variables are presented systematically, including different temperature of sample collection and types of collection tubes, gradient sampling, the addition of detergent, aliquot volume, the freezing time, and the different thawing methods...
July 22, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28734041/mir-103-functions-as-a-tumor-suppressor-by-directly-targeting-programmed-cell-death-10-in-nsclc
#7
Dong Yang, Jian-Jun Wang, Jin-Song Li, Qian-Yu Xu
NSCLC accounts for about 85% of all lung cancer cases. Absence of miR-103 has recently identified to be associated withmetastatic capacity of primary lung tumors. However, the exact role of miR-103 in NSCLC and the molecular mechanism is unclear. In the present study, we showed that miR-103 expression was reduced in NSCLC tissues and cells. miR-103 expression was negatively correlated with tumor size and stage. The overall survival was longer in patients with higher miR-103 level than in those with lower miR-103 expression...
July 21, 2017: Oncology Research
https://www.readbyqxmd.com/read/28733723/an-individualized-radiation-dose-escalation-trial-in-non-small-cell-lung-cancer-based-on-fdg-pet-imaging
#8
Marie Wanet, Antoine Delor, François-Xavier Hanin, Benoît Ghaye, Aline Van Maanen, Vincent Remouchamps, Christian Clermont, Samuel Goossens, John Aldo Lee, Guillaume Janssens, Anne Bol, Xavier Geets
AIM: The aim of the study was to assess the feasibility of an individualized 18F fluorodeoxyglucose positron emission tomography (FDG-PET)-guided dose escalation boost in non-small cell lung cancer (NSCLC) patients and to assess its impact on local tumor control and toxicity. PATIENTS AND METHODS: A total of 13 patients with stage II-III NSCLC were enrolled to receive a dose of 62.5 Gy in 25 fractions to the CT-based planning target volume (PTV; primary turmor and affected lymph nodes)...
July 21, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28733686/comparison-of-the-proportion-and-healthcare-utilisation-of-adult-patients-with-uncontrolled-severe-asthma-versus-non-severe-asthma-seen-in-a-southeast-asian-hospital-based-respiratory-specialist-clinic
#9
Tunn Ren Tay, Hang Siang Wong, Rosna Ihsan, Hsiao Peng Toh, Xuening Choo, Augustine Kh Tee
INTRODUCTION: Understanding the burden of uncontrolled severe asthma is essential for disease-targeted healthcare planning. There is a scarcity of data regarding the proportion, healthcare utilisation and costs of patients with uncontrolled severe asthma in Asia. This study aimed to plug the knowledge gap in this area. MATERIALS AND METHODS: Consecutive patients with asthma managed in our respiratory specialist clinic were evaluated prospectively. Healthcare utilisation comprising unscheduled asthma-related primary care visits, emergency department (ED) visits and hospital admissions were obtained from the national health records system...
June 2017: Annals of the Academy of Medicine, Singapore
https://www.readbyqxmd.com/read/28733472/effects-of-rna-interference-mediated-gene-silencing-of-vegf-on-the-ultrafiltration-failure-in-a-rat-model-of-peritoneal-dialysis
#10
Zhi-Kui Wang, Zhao-Xia Wang, Zhen-Ying Liu, Yue-Qin Ren, Zhong-Qi Zhou
We investigated the effects of RNA interference-mediated gene silencing of VEGF on ultrafiltration failure (UFF) in rats with peritoneal dialysis (PD). SD male rats were classified into normal, sham operation, and uremic model groups. Uremic rats were sub-categorized into uremia, PD2, VEGF shRNA-2, vector-2, PD2 + Endostar, PD4, VEGF shRNA-4, Vector-4 and PD4 + Endostar groups. Peritoneal Equilibration Test (PET) was conducted to assess ultrafiltration volume (UFV) and mass transfer of glucose (MTG). mRNA and protein expressions of VEGF were detected using qRT-PCR and Western blotting...
July 21, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28732106/specific-%C3%AE-7-nicotinic-acetylcholine-receptor-agonist-ameliorates-isoproterenol-induced-cardiac-remodeling-in-mice-through-tgf-%C3%AE-1-smad3-pathway
#11
Yong-Hua Yang, Huan-Le Fang, Ming Zhao, Xiang-Lan Wei, Ning Zhang, Shun Wang, Yi Lu, Xiao-Jiang Yu, Lei Sun, Xi He, Dong-Ling Li, Jin-Jun Liu, Wei-Jin Zang
It is well-accepted that inflammation plays an important role in the development of cardiac remodeling and that therapeutic approaches targeting inflammation can inhibit cardiac remodeling. Although a large amount of evidence indicates that activation of α7 nicotinic acetylcholine receptor (α7nAChR) causes an anti-inflammatory effect, the role of α7nAChR in cardiac remodeling and the underlying mechanism have not been established. To investigate the effect of the specific α7nAChR agonist, PNU282987, on cardiac remodeling induced by isoproterenol (ISO 60 mg/kg/d) in mice, the cardiomyocyte cross-sectional area (CSA) and collagen volume fraction were evaluated by hematoxylin and eosin (HE) and Masson staining, respectively...
July 21, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28731846/presence-and-future-of-culturing-bacteria
#12
Jörg Overmann, Birte Abt, Johannes Sikorski
The cultivation of bacteria is highly biased toward a few phylogenetic groups. Many of the currently underexplored bacterial lineages likely have novel biosynthetic pathways and unknown biochemical features. New cultivation concepts have been developed based on an improved understanding of the ecology of previously not-cultured bacteria. Particularly successful were improved media that mimic the natural types and concentrations of substrates and nutrients, high-throughput cultivation techniques, and approaches that exploit biofilm formation and bacterial interactions...
July 21, 2017: Annual Review of Microbiology
https://www.readbyqxmd.com/read/28731368/computerized-planning-of-prostate-cryosurgery-and-shape-considerations
#13
Purva Joshi, Anjali Sehrawat, Yoed Rabin
The current study aims to explore possible relationships between various prostate shapes and the difficulty in creating a computer-based plan for cryosurgery. This research effort is a part of an ongoing study to develop computational means in order to improve cryosurgery training and education. This study uses a computerized planner-a key building block of a recently developed prototype for cryosurgery training. The quality of planning is measured by the overall defect volume, a proprietary concept which refers to undercooled areas internal to the target region and overcooled areas external to it...
January 1, 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/28731267/heuristic-knowledge-based-planning-for-single-isocenter-stereotactic-radiosurgery-to-multiple-brain-metastases
#14
Benjamin P Ziemer, Parag Sanghvi, Jona Hattangadi-Gluth, Kevin L Moore
PURPOSE: Single-isocenter, volumetric modulated arc therapy (VMAT) stereotactic radiosurgery (SRS) for multiple brain metastases (multi-mets) can deliver highly conformal dose distributions and reduce overall patient treatment time compared to other techniques. However, treatment planning for multi-met cases is highly complex due to variability in numbers and sizes of brain metastases, as well as their relative proximity to organs-at-risk (OARs). The purpose of this study was to automate the VMAT planning of multi-met cases through a knowledge-based planning (KBP) approach that adapts single target SRS dose predictions to multiple target predictions...
July 21, 2017: Medical Physics
https://www.readbyqxmd.com/read/28731079/a-polymeric-temozolomide-nanocomposite-against-orthotopic-glioblastoma-xenograft-tumor-specific-homing-directed-by-nestin
#15
Suma Prabhu, Jayant Sastri Goda, Srinivas Mutalik, Bhabani Shankar Mohanty, Pradip Chaudhari, Sharada Rai, Nayanabhirama Udupa, Bola Sadashiva Satish Rao
The development of effective therapeutic strategies for glioblastoma faces challenges such as modulating the blood brain barrier (BBB) for drug influx and selectively targeting tumor cells. Nanocarrier drug delivery strategies are functionalized to enhance vascular permeability. We engineered superparamagnetic iron oxide nanoparticle (SPION) based polymeric nanocomposites (84.37 ± 12.37 nm / 101.56 ± 7.42 nm) embedding temozolomide (TMZ) targeted against glioblastoma by tagging an antibody against nestin, a stem cell marker, and transferrin / polysorbate-80 to permeate the BBB...
July 21, 2017: Nanoscale
https://www.readbyqxmd.com/read/28731074/left-hippocampus-sparing-whole-brain-radiotherapy-wbrt-a-planning-study
#16
Tomas Kazda, Miroslav Vrzal, Tomas Prochazka, Petr Dvoracek, Petr Burkon, Petr Pospisil, Adam Dziacky, Tomas Nikl, Radim Jancalek, Pavel Slampa, Radek Lakomy
AIMS: Unilateral sparing of the dominant (left) hippocampus during whole brain radiotherapy (WBRT) could mitigate cognitive decline, especially verbal memory, similar to the widely investigated bilateral hippocampus avoidance (HA-WBRT). The aim of this planning study is dosimetrical comparison of HA-WBRT with only left hippocampus sparing (LHA-WBRT) plans. METHODS: HA-WBRT plans for 10 patients were prepared in accordance with RTOG 0933 trial and served as baseline for comparisons with several LHA-WBRT plans prepared with an effort: 1) to maintain the same left hippocampus dosimetry ("BEST PTV") and 2) to maintain same dosimetry in planning target volume as in HA-WBRT ("BEST LH")...
July 20, 2017: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/28730238/altered-expression-of-mtor-and-autophagy-in-term-normal-human-placentas
#17
Qiu Xia Zhang, Quan Na, Weiwei Song
Mammalian target of rapamycin (mTOR) and autophagy have been implied in trophoblast cells proliferation and invasion. This study investigated whether mTOR and autophagy were involved in placental development and fetal programming. A total of 90 term normal placentas (37-42 gestational weeks) were collected from women who underwent elective cesarean section, with large for gestational age (LGA), fetal growth restriction (FGR), and appropriate for gestational age (AGA) infants (n=30, respectively). Capillary volume density within peripheral villi significantly decreased in the FGR placentas compared with the AGA group (p<0...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28729965/fluid-overload-as-a-major-target-in-management-of-cardiorenal-syndrome-implications-for-the-practice-of-peritoneal-dialysis
#18
REVIEW
Amir Kazory
Congestion is an integral component of cardiorenal syndrome and portends an adverse impact on the outcomes. Recent studies suggest that congestion has the ability of modulating the interactions between the kidney and the heart in this setting. Peritoneal dialysis (PD) is a home-based therapeutic modality that is not only offered to patients with end-stage renal disease to provide solute clearance and ultrafiltration, but it has also been used in patients with refractory heart failure and fluid overload to help optimize volume status...
July 6, 2017: World Journal of Nephrology
https://www.readbyqxmd.com/read/28729395/relationship-between-exercise-volume-and-muscle-protein-synthesis-in-a-rat-model-of-resistance-exercise
#19
Riki Ogasawara, Yuki Arihara, Junya Takegaki, Koichi Nakazato, Naokata Ishii
Resistance exercise (RE) volume is recognized as an important factor that stimulates muscle protein synthesis (MPS) and is considered, at least in part, to be involved in the mammalian target of rapamycin complex 1 (mTORC1)-associated signaling. However, the effects of relatively high doses of muscle contractions on mTORC1 and MPS remain unclear. In the present study, we used an animal model of RE to investigate the relationship between RE volume and MPS. Male Sprague-Dawley rats were subjected to RE, and muscle samples were obtained 6 h after performing 1, 3, 5, 10, or 20 sets of RE...
July 20, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28728415/-177-lu-labelled-cyclic-minigastrin-analogues-with-therapeutic-activity-in-cck2r-expressing-tumours-preclinical-evaluation-of-a-kit-formulation
#20
Christine Rangger, Maximilian Klingler, Lajos Balogh, Zita Pöstényi, Andras Polyak, Dariusz Pawlak, Renata Mikołajczak, Elisabeth von Guggenberg
Minigastrin (MG) analogues specifically target cholecystokinin-2 receptors (CCK2R) expressed in different tumours and enable targeted radiotherapy of advanced and disseminated disease when radiolabelled with a beta emitter such as (177)Lu. Especially truncated MG analogues missing the penta-Glu sequence are associated with low kidney retention and seem therefore most promising for therapeutic use. Based on [D-Glu1,desGlu2-6]MG (MG11) we have designed the two cyclic MG analogues cyclo1,9[γ-D-Glu1,desGlu2-6,D-Lys9]MG (cyclo-MG1) and cyclo1,9[γ-D-Glu1,desGlu2-6,D-Lys9,Nle11]MG (cyclo-MG2)...
July 20, 2017: Molecular Pharmaceutics
keyword
keyword
21193
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"