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https://www.readbyqxmd.com/read/28105334/chronic-kidney-disease-in-children-and-the-role-of-epigenetics-future-therapeutic-trajectories
#1
Samuel N Uwaezuoke, Henrietta U Okafor, Vivian N Muoneke, Odutola I Odetunde, Chioma L Odimegwu
Global differences in the observed causes of chronic kidney disease (CKD) in children are well documented and are attributed to dissimilarities in clime, race, hereditary, and ancestry. Thus, familial clustering and disparities in CKD prevalence rates across ethnic and racial groups indicate that the progression of renal disease has a strong genetic component. Mammalian studies have demonstrated a feasible nexus between nutrition and non-genetic exposure (around the time of conception and in epigenetic changes) in the expression of major genes identified in renal organogenesis...
December 2016: Biomedical Reports
https://www.readbyqxmd.com/read/28104497/robot-assisted-surgery-in-gynecologic-cancers
#2
REVIEW
V Zanagnolo, A Garbi, M T Achilarre, L Minig
Robotic-assisted surgery is a technological advancement that facilitates the application of minimally invasive techniques for complex operations in gynecological oncology. The objective of this article is to review the literature regarding the role of robotic-assisted surgery to treat women with gynecologic cancers. The majority of publications on robotic surgery are still retrospective or descriptive in nature, however, the data for managing patients with a robotic assisted approach shows comparable, and at times an improved outcomes compared to both laparoscopy (2D) and laparotomy approaches...
January 16, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28103033/design-synthesis-and-biological-evaluation-of-small-high-affinity-siglec-7-ligands-toward-novel-inhibitors-of-cancer-immune-evasion
#3
Horst Prescher, Martin Frank, Stephan Gütgemann, Elena Kuhfeldt, Astrid Schweizer, Lars Nitschke, Carsten Watzl, Reinhard Brossmer
Natural killer cells are able to directly lyse tumor cells, thereby participating in the immune surveillance against cancer. Unfortunately, many cancer cells use immune evasion strategies to avoid their eradication by the immune system. A prominent escape strategy of malignant cells is to camouflage themselves with Siglec-7 ligands, thereby recruiting the inhibitory receptor Siglec-7 expressed on the NK cell surface which subsequently inhibits NK-cell-mediated lysis. Here we describe the synthesis and evaluation of the first, high-affinity low molecular weight Siglec-7 ligands to interfere with cancer cell immune evasion...
January 19, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28102909/the-effects-of-hospital-characteristics-on-delays-in-breast-cancer-diagnosis-in-appalachian-communities-a-population-based-study
#4
Christopher J Louis, Jonathan R Clark, Marianne M Hillemeier, Fabian Camacho, Nengliang Yao, Roger T Anderson
PURPOSE: Despite being generally accepted that delays in diagnosing breast cancer are of prognostic and psychological concern, the influence of hospital characteristics on such delays remains poorly understood, especially in rural and underserved areas. However, hospital characteristics have been tied to greater efficiency and warrant further investigation as they may have implications for breast cancer care in these areas. METHODS: Study data were derived from the Kentucky, North Carolina, Ohio, and Pennsylvania state central cancer registries (2006-2008)...
January 19, 2017: Journal of Rural Health
https://www.readbyqxmd.com/read/28102529/recovery-from-chemotherapy-induced-white-matter-changes-in-young-breast-cancer-survivors
#5
Thibo Billiet, Louise Emsell, Mathieu Vandenbulcke, Ronald Peeters, Daan Christiaens, Alexander Leemans, Wim Van Hecke, Ann Smeets, Frederic Amant, Stefan Sunaert, Sabine Deprez
In a previous longitudinal diffusion tensor imaging (DTI) study, we observed cerebral white matter (WM) alterations (reduced fractional anisotropy (FA)) related to decreased cognitive performance 3-5 months after chemotherapy-treatment (t2) when compared to baseline (t1) (Deprez et al. in Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology, 30(3), 274-281. doi:10.1200/JCO.2011.36.8571, 2012). The current study investigates the evolution and the nature of these previously observed microstructural changes...
January 19, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28101353/clinical-characteristics-and-treatment-of-69-patients-with-extranodal-natural-killer-t-cell-lymphoma
#6
Yuyan Guo, Enxiao Li, Liping Song, Yinying Wu
This study was conducted to retrospectively analyze the clinical characteristics and survival of patients with extranodal natural killer-T cell lymphoma (ENKL) and compare different treatment regimens. The univariate analysis demonstrated that survival was worse for patients with extranasal primary tumors, Eastern Cooperative Oncology Group performance status (ECOG PS) scores of ≥2, International Prognostic Index (IPI) scores of 3-5, Ann Arbor stage III and IV disease, B symptoms, lymph node involvement and absence of radiotherapy...
December 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28094573/advanced-gastric-adenocarcinoma-optimizing-therapy-options
#7
Dilsa Mizrak Kaya, Kazuto Harada, Yusuke Shimodaira, Fatemeh G Amlashi, Quan Lin, Jaffer A Ajani
Gastric adenocarcinoma (GAC) is the fifth most common cancer and third leading cause of cancer related mortality worldwide. When localized, cure is achievable with surgery and adjunctive therapies in some patients, however, once advanced, GAC is not a curable condition. Only two targeted agents (trastuzumab and ramucirumab) have been approved and apatinib was approved only in China. Because of the heterogeneous nature of GAC, it is not possible to assess a standard therapeutic approach. Areas Covered: In this review, we aimed to describe the optimal systemic therapy regimens for advanced GAC...
January 17, 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/28094055/renal-cell-carcinoma-with-isolated-lymph-node-involvement-long-term-natural-history-and-predictors-of-oncologic-outcomes-following-surgical-resection
#8
Boris Gershman, Daniel M Moreira, R Houston Thompson, Stephen A Boorjian, Christine M Lohse, Brian A Costello, John C Cheville, Bradley C Leibovich
BACKGROUND: Renal cell carcinoma (RCC) with isolated lymph node (LN) involvement has historically been associated with poor prognosis. However, a subset of patients may experience long-term survival. OBJECTIVE: To examine the natural history of RCC with isolated LN involvement following surgical resection with long-term follow-up, and to evaluate clinicopathologic features associated with disease progression and survival. DESIGN, SETTING, AND PARTICIPANTS: A total of 138 patients with isolated pN1M0 RCC underwent partial or radical nephrectomy and LN dissection from 1980 to 2010...
January 13, 2017: European Urology
https://www.readbyqxmd.com/read/28093280/metronomics-in-the-neoadjuvant-and-adjuvant-treatment-of-breast-cancer
#9
Elisabetta Munzone, Marco Colleoni
The concept of metronomic chemotherapy (MC) has evolved from a descriptive preclinical phenomenon encompassing inhibition of angiogenesis to a clinically validated treatment concept involving multiple potential mechanisms of action. Clinicians are progressively more incline to consider MC as a component of mainstream medical oncology practice in advanced breast cancer. However, more recently MC has been tested even in the adjuvant/neoadjuvant setting, taking the opportunity to obtain tumor specimens and blood samples, in order to identify tumor-specific or patient-specific biomarkers for personalizing treatments...
January 13, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28087255/unknown-face-of-known-drugs-what-else-can-we-expect-from-angiotensin-converting-enzyme-inhibitors
#10
REVIEW
Anna Wzgarda, Robert Kleszcz, Monika Prokop, Katarzyna Regulska, Milosz Regulski, Jaroslaw Paluszczak, Beata J Stanisz
The renin-angiotensin system (RAS) is one of important systems among homeostatic mechanisms that control the function of cardiovascular, renal and adrenal systems. As RAS has a very complex nature, it has been also found as related to the control of cell migration and apoptosis. Angiotensin-converting enzyme inhibitors (ACEI) are drugs most commonly used in the modulation of RAS activity. ACEI have been extensively described as effective in the treatment of hypertension among adults, but also as drugs delaying progression in diabetic nephropathy and reducing mortality in left ventricular dysfunction and congestive heart failure...
January 10, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28063019/raoultella-spp-clinical-significance-infections-and-susceptibility-to-antibiotics
#11
REVIEW
Alicja Sękowska
The genus Raoultella belongs to the family of Enterobacteriaceae. Raoultella spp. are Gram-negative, aerobic, non-motile rods. This genus can be distinguished from the genus Klebsiella, in that genus use histamine as the only source of carbon in the medium. Also, Raoultella grow at 4 °C and do not produce gas from lactose at 44.5 °C. Raoultella sp. is known to inhabit natural environments (water, soil, plants). The reservoir of Raoultella is the gastrointestinal tract and upper respiratory tract. Raoultella spp...
January 6, 2017: Folia Microbiologica
https://www.readbyqxmd.com/read/28061768/a-matched-pair-study-comparing-whole-brain-irradiation-alone-to-radiosurgery-or-fractionated-stereotactic-radiotherapy-alone-in-patients-irradiated-for-up-to-three-brain-metastases
#12
Dirk Rades, Stefan Janssen, Liesa Dziggel, Oliver Blanck, Amira Bajrovic, Theo Veninga, Steven E Schild
BACKGROUND: This matched-pair study was initiated to validate the results of a retrospective study of 186 patients published in 2007 that compared whole-brain irradiation (WBI) alone and radiosurgery (RS) alone for up to three brain metastases. METHODS: One-hundred-fifty-two patients receiving WBI alone for up to three brain metastases were matched with 152 patients treated with RS of fractionated stereotactic radiotherapy (FSRT) alone 1:1 for each of eight factors (age, gender, Eastern Oncology Cooperative Group (ECOG)-performance score, nature of tumor, brain metastases number, extra-cerebral spread, period from cancer detection to irradiation of brain metastases, and recursive partitioning analysis (RPA)-class...
January 6, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28056244/-trend-of-development-and-prospect-of-gastrointestinal-surgery-in-era-of-minimally-invasive
#13
X Y Qin
The development and popularization of minimally invasive treatment is gradually evolving in the course of human fighting against disease. Minimally invasive surgery has been widely accepted and carried out because of the advantages of smaller trauma, less pain, little impact on the body and physiological metabolism of the body. The evidence-based medicine makes it important to conduct clinical trials to confirm the technical and oncological safety. With the development of minimally invasive technologies, including three-dimensional laparoscopic, natural orifice transluminal endoscopic surgery, robotic surgery system, minimally invasive surgery are providing more opportunities and challenges for gastrointestinal diseases...
January 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28048880/su-f-r-34-quantitative-perfusion-measurement-in-rectal-cancer-using-three-different-pharmacokinetic-models-implications-for-prospective-study-design
#14
K Nie, T Mao, L Shi, N Yue, S Jabbour, S Kim, X Hu, L Qian, X Sun, T Niu
PURPOSE: To compare three different pharmacokinetic models for analysis of dynamic-contrast-enhanced (DCE)-CT data with respect to different acquisition times and location of region of interest. METHODS: Eight rectal cancer patients with pre-treatment DCE-CTs were included. The dynamic sequence started 4-10seconds(s) after the injection of contrast agent. The scan included a 110s acquisition with intervals of 40×1s+15×3s+4×6s. An experienced oncologist outlined the tumor region...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048615/tu-h-202-04-the-vampire-challenge-preliminary-results-from-a-multi-institutional-study-of-ct-ventilation-image-accuracy
#15
J Kipritidis
: CT ventilation imaging is an exciting functional imaging modality that combines four-dimensional computed tomography (4DCT) and deformable image registration (DIR) to provide exquisite ventilation maps of the lung. CT ventilation imaging can be used for: (1) Functional avoidance in thoracic radiation therapy, (2) Imaging longitudinal changes in regional lung function for treatment assessment and adaptation, (3) Image-assisted diagnosis of non-oncologic respiratory diseases. CT ventilation imaging uses CT, a predominantly anatomic imaging modality, and through imaging processing creates functional images...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048557/tu-h-202-00-ct-ventilation-imaging-the-new-clinical-reality-of-functional-avoidance-and-response-assessment-in-lung-cancer-radiation-therapy
#16
Paul Keall
: CT ventilation imaging is an exciting functional imaging modality that combines four-dimensional computed tomography (4DCT) and deformable image registration (DIR) to provide exquisite ventilation maps of the lung. CT ventilation imaging can be used for: (1) Functional avoidance in thoracic radiation therapy, (2) Imaging longitudinal changes in regional lung function for treatment assessment and adaptation, (3) Image-assisted diagnosis of non-oncologic respiratory diseases. CT ventilation imaging uses CT, a predominantly anatomic imaging modality, and through imaging processing creates functional images...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048443/su-g-201-06-directional-low-dose-rate-brachytherapy-determination-of-the-tg-43-dose-rate-constant-analog-for-a-new-pd-103-source
#17
M Aima, W Culberson, C Hammer, J Micka, L DeWerd
PURPOSE: The aim of this work is to determine the TG-43 dose-rate constant analog for a new directional low-dose rate brachytherapy source based on experimental methods and comparison to Monte Carlo simulations. The CivaSheet™ is a new commercially available planar source array comprised of a variable number of discrete directional source elements called "CivaDots". Given the directional nature and non-conventional design of the source, modifications to the AAPM TG-43 protocol for dosimetry are required...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047895/tu-h-202-01-introduction-to-ct-ventilation-imaging-principles-validation-and-clinical-translation
#18
T Yamamoto
: CT ventilation imaging is an exciting functional imaging modality that combines four-dimensional computed tomography (4DCT) and deformable image registration (DIR) to provide exquisite ventilation maps of the lung. CT ventilation imaging can be used for: (1) Functional avoidance in thoracic radiation therapy, (2) Imaging longitudinal changes in regional lung function for treatment assessment and adaptation, (3) Image-assisted diagnosis of non-oncologic respiratory diseases. CT ventilation imaging uses CT, a predominantly anatomic imaging modality, and through imaging processing creates functional images...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047670/su-f-p-20-predicting-waiting-times-in-radiation-oncology-using-machine-learning
#19
A Joseph, D Herrera, T Hijal, L Hendren, A Leung, J Wainberg, M Sawaf, M Gorshkov, R Maglieri, M Keshavarz, J Kildea
PURPOSE: Waiting times remain one of the most vexing patient satisfaction challenges facing healthcare. Waiting time uncertainty can cause patients, who are already sick or in pain, to worry about when they will receive the care they need. These waiting periods are often difficult for staff to predict and only rough estimates are typically provided based on personal experience. This level of uncertainty leaves most patients unable to plan their calendar, making the waiting experience uncomfortable, even painful...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047524/su-f-p-05-initial-experience-with-an-independent-certification-program-for-stereotactic-radiosurgery-and-stereotactic-body-radiation-therapy
#20
T Solberg, J Robar, T Gevaert, M Todorovic, J Howe
PURPOSE: The ASTRO document "Safety is no accident: A FRAMEWORK FOR QUALITY RADIATION ONCOLOGY AND CARE" recommends external reviews of specialized modalities. The purpose of this presentation is to describe the implementation of such a program for Stereotactic Radiosurgery (SRS) and Stereotactic Body radiation Therapy (SBRT). METHODS: The margin of error for SRS and SBRT delivery is significantly smaller than that of conventional radiotherapy and therefore requires special attention and diligence...
June 2016: Medical Physics
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