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https://www.readbyqxmd.com/read/28433753/computational-image-analysis-for-prognosis-determination-in-dme
#1
Bianca S Gerendas, Hrvoje Bogunovic, Amir Sadeghipour, Thomas Schlegl, Georg Langs, Sebastian M Waldstein, Ursula Schmidt-Erfurth
In this pilot study, we evaluated the potential of computational image analysis of optical coherence tomography (OCT) data to determine the prognosis of patients with diabetic macular edema (DME). Spectral-domain OCT scans with fully automated retinal layer segmentation and segmentation of intraretinal cystoid fluid (IRC) and subretinal fluid of 629 patients receiving anti-vascular endothelial growth factor therapy for DME in a randomized prospective clinical trial were analyzed. The results were used to define 312 potentially predictive features at three timepoints (baseline, weeks 12 and 24) for best-corrected visual acuity (BCVA) at baseline and after one year used in a random forest prediction path...
April 19, 2017: Vision Research
https://www.readbyqxmd.com/read/28427418/immunity-as-a-predictor-of-anti-malarial-treatment-failure-a-systematic-review
#2
Katherine O'Flaherty, Julia Maguire, Julie A Simpson, Freya J I Fowkes
BACKGROUND: Naturally acquired immunity can reduce parasitaemia and potentially influence anti-malarial treatment outcomes; however, evidence for this in the current literature provides conflicted results. The available evidence was synthesized to determine and quantify the association between host immunity and anti-malarial treatment failure. METHODS: Four databases were searched to identify studies investigating malaria antibody levels in patients receiving anti-malarial treatment for symptomatic malaria with treatment failure recorded according to the World Health Organization classification...
April 20, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28393141/using-cluster-analysis-of-cytokines-to-identify-patterns-of-inflammation-in-hospitalized-patients-with-community-acquired-pneumonia-a-pilot-study
#3
Timothy L Wiemken, Robert R Kelley, Rafael Fernandez-Botran, William A Mattingly, Forest W Arnold, Stephen P Furmanek, Marcos I Restrepo, James D Chalmers, Paula Peyrani, Rodrigo Cavallazzi, Jose Bordon, Stefano Aliberti, Julio A Ramirez
INTRODUCTION: Patients with severe community-acquired pneumonia (CAP) are believed to have an exaggerated inflammatory response to bacterial infection. Therapies aiming to modulate the inflammatory response have been largely unsuccessful, perhaps reflecting that CAP is a heterogeneous disorder that cannot be modulated by a single anti-inflammatory approach. We hypothesize that the host inflammatory response to pneumonia may be characterized by distinct cytokine patterns, which can be harnessed for personalized therapies...
2017: Univ Louisville J Respir Infect
https://www.readbyqxmd.com/read/28376187/a-novel-diagnostic-tool-for-selecting-patients-with-mesenchymal-type-colon-cancer-reveals-intratumor-subtype-heterogeneity
#4
Inge Ubink, Sjoerd G Elias, Cathy B Moelans, Miangela M Laclé, Wilhelmina M U van Grevenstein, Paul J van Diest, Inne H M Borel Rinkes, Onno Kranenburg
Background: Consensus molecular subtype 4 (CMS4) is a recently identified aggressive colon cancer subtype for which platelet-derived growth factor receptors (PDGFRs) and KIT are potential therapeutic targets. We aimed to develop a clinically applicable CMS4 reverse transcription polymerase chain reaction (RT-qPCR) test to select patients for PDGFR/KIT-targeted therapy. Methods: We used logistic regression to develop a CMS4 prediction rule based on microarray expression values of PDGFRA , PDGFRB , PDGFC , and KIT (566 training and 1259 test samples, using the 273-gene random forest classifier as CMS4 reference standard)...
August 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28362327/the-salutary-influence-of-forest-bathing-on-elderly-patients-with-chronic-heart-failure
#5
Genxiang Mao, Yongbao Cao, Bozhong Wang, Sanying Wang, Zhuomei Chen, Jirong Wang, Wenmin Xing, Xiaoxu Ren, Xiaoling Lv, Jianhua Dong, Shasha Chen, Xiuyuan Chen, Guofu Wang, Jing Yan
The aim of the current study was to test the hypothesis that forest bathing would be beneficial for elderly patients with chronic heart failure (CHF) as an adjunctive therapy. Two groups of participants with CHF were simultaneously sent to the forest or an urban control area for a four-day trip, respectively. Subjects exposed to the forest site showed a significant reduction of brain natriuretic peptide (BNP) in comparison to that of the city group and their own baseline levels. The values for the cardiovascular disease related pathological factors, including endothelin-1 (ET-1), and constituents of the renin-angiotensin system (RAS), including renin, angiotensinogen (AGT), angiotensin II (ANGII), and ANGII receptor type 1 or 2 (AT1 or AT2) in subjects exposed to the forest environment were lower than those in the urban control group...
March 31, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28359714/influencing-factors-of-sac-shrinkage-after-endovascular-aneurysm-repair
#6
REVIEW
Florent Lalys, Anne Daoudal, Juliette Gindre, Cemil Göksu, Antoine Lucas, Adrien Kaladji
OBJECTIVE: Sac shrinkage is considered a reliable surrogate marker of success after endovascular aneurysm repair (EVAR). Whereas sac shrinkage is the best expected outcome, predictive factors of sac shrinkage remain unclear. The aim of this study was to identify the role of preoperative and postoperative influencing factors of sac reduction after EVAR. METHODS: Online searches across MEDLINE, Embase, and Cochrane Library medical databases were simultaneously performed...
March 27, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28351781/geis-guidelines-for-gastrointestinal-sarcomas-gist
#7
REVIEW
Andrés Poveda, Xavier García Del Muro, Jose Antonio López-Guerrero, Ricardo Cubedo, Virginia Martínez, Ignacio Romero, César Serrano, Claudia Valverde, Javier Martín-Broto
Gastrointestinal stromal sarcomas (GISTs) are the most common mesenchymal tumours originating in the digestive tract. They have a characteristic morphology, are generally positive for CD117 (c-kit) and are primarily caused by activating mutations in the KIT or PDGFRA genes(1). On rare occasions, they occur in extravisceral locations such as the omentum, mesentery, pelvis and retroperitoneum. GISTs have become a model of multidisciplinary work in oncology: the participation of several specialties (oncologists, pathologists, surgeons, molecular biologists, radiologists…) has forested advances in the understanding of this tumour and the consolidation of a targeted therapy, imatinib, as the first effective molecular treatment in solid tumours...
March 2, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28349237/histopathologic-features-predict-survival-in-diffuse-pleural-malignant-mesothelioma-on-pleural-biopsies
#8
Cyril Habougit, Béatrice Trombert-Paviot, Georgia Karpathiou, François Casteillo, Sophie Bayle-Bleuez, Pierre Fournel, Jean-Michel Vergnon, Olivier Tiffet, Michel Péoc'h, Fabien Forest
Malignant pleural mesothelioma is a rare tumor with a poor prognosis. The only universally recognized pathological prognostic factor is histopathological subtype with a shorter survival in non-epithelioid subtypes. Recently, a grading of epithelioid mesothelioma on surgical resection has been proposed. The aim of our work is to assess the prognostic role of several histopathological factors on a retrospective cohort of 116 patients diagnosed as a pleural mesothelioma for more than 95% of patients on pleural biopsy...
March 27, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28348045/stratification-of-pancreatic-ductal-adenocarcinoma-combinatorial-genetic-stromal-and-immunological-markers
#9
Erik Knudsen, Paris Vail, Uthra Balaji, Hoai Ngo, Ihab W Botros, Vladimir Makarov, Nadeem Riaz, Vinod P Balachandran, Steven D Leach, Debrah M Thompson, Timothy A Chan, Agnieszka K Witkiewicz
PURPOSE: Pancreatic ductal adenocarcinoma (PDAC) is associated with an immunosuppressive milieu that supports immune system evasion and disease progression. Here, we interrogated genetic, stromal, and immunological features of PDAC to delineate impact on prognosis and to more effectively employ immunotherapy. EXPERIMENTAL DESIGN: A cohort of 109 PDAC cases annotated for overall survival was utilized as a primary discovery cohort. Gene expression analysis defined immunological subtypes of PDAC that were confirmed in the Cancer Genome Atlas data set...
March 27, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28339429/comparing-the-efficacy-of-surgery-and-medical-therapy-for-pain-management-in-endometriosis-a-systematic-review-and-meta-analysis
#10
Shahla Chaichian, Ali Kabir, Adolfazl Mehdizadehkashi, Khaled Rahmani, Mehrdad Moghimi, Bahram Moazzami
BACKGROUND: Pain is considered as one of the main symptoms of endometriosis. The treatment for endometriosis remains controversial. OBJECTIVES: The aim of this study is to compare the effect of medical or surgical treatments for pain-relief in patients with endometriosis. STUDY DESIGN: Systematic review and meta-analysis. SETTING: Published papers about evaluating pain treatment in endometriosis in PubMed, Scopus, and Google Scholar...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28336346/antiviral-activity-of-the-adenosine-analogue-bcx4430-against-west-nile-virus-and-tick-borne-flaviviruses
#11
Luděk Eyer, Darina Zouharová, Jana Širmarová, Martina Fojtíková, Michal Štefánik, Jan Haviernik, Radim Nencka, Erik de Clercq, Daniel Růžek
There are currently no approved antiviral therapies against medically important human flaviviruses. The imino-C-nucleoside BCX4430 shows broad-spectrum antiviral activity against a wide range of RNA viruses. Here, we demonstrate that BCX4430 inhibits tick-borne species of the genus Flavivirus; however, the antiviral effect varies against individual species. Micro-molar BCX4430 levels inhibited tick-borne encephalitis virus (TBEV); while, approximately 3-8-fold higher concentrations were needed to inhibit louping ill virus and Kyasanur Forest disease virus...
March 21, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28335541/effects-of-forest-therapy-on-depressive-symptoms-among-adults-a-systematic-review
#12
REVIEW
Insook Lee, Heeseung Choi, Kyung-Sook Bang, Sungjae Kim, MinKyung Song, Buhyun Lee
This study systematically reviewed forest therapy programs designed to decrease the level of depression among adults and assessed the methodological rigor and scientific evidence quality of existing research studies to guide future studies. This systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The authors independently screened full-text articles from various databases using the following criteria: (1) intervention studies assessing the effects of forest therapy on depressive symptoms in adults aged 18 years and older; (2) studies including at least one control group or condition; (3) peer-reviewed studies; and (4) been published either in English or Korean before July 2016...
March 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28324966/random-forests-to-predict-tumor-recurrence-following-cervical-cancer-therapy-using-pre-and-per-treatment-18-f-fdg-pet-parameters
#13
Geoffrey Roman-Jimenez, Oscar Acosta, Julie Leseur, Anne Devillers, Henri Der Sarkissian, Lina Guzman, Eloi'se Grossiord, Juan-David Ospina, Renaud De Crevoisier
The ability to predict tumor recurrence after chemoradiotherapy of locally advanced cervical cancer is a crucial clinical issue to intensify the treatment of the most high-risk patients. The objective of this study was to investigate tumor metabolism characteristics extracted from pre- and per-treatment (18)F-FDG PET images to predict 3-year overall recurrence (OR). A total of 53 locally advanced cervical cancer patients underwent pre- and per-treatment (18)F-FDG PET (respectively PET1 and PET2). Tumor metabolism was characterized through several delineations using different thresholds, based on a percentage of the maximum uptake, and applied by region-growing...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28318951/a-comprehensive-analysis-of-programmed-cell-death-ligand-1-expression-with-the-clone-sp142-antibody-in-non-small-cell-lung-cancer%C3%A2-patients
#14
Kazuki Takada, Gouji Toyokawa, Tatsuro Okamoto, Mototsugu Shimokawa, Yuka Kozuma, Taichi Matsubara, Naoki Haratake, Takaki Akamine, Shinkichi Takamori, Masakazu Katsura, Fumihiro Shoji, Yoshinao Oda, Yoshihiko Maehara
BACKGROUND: Programmed cell death-1 (PD-1) and programmed cell death ligand-1 (PD-L1) have been identified as novel targets for immunotherapy, with anti-PD-1 therapy currently the standard treatment for non-small-cell lung cancer (NSCLC) patients after the failure of first-line chemotherapy treatment. The recent phase II POPLAR and phase III OAK studies showed that atezolizumab, a representative PD-L1 inhibitor, exhibited a survival benefit compared with standard therapy in patients with NSCLC...
March 2, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28315379/magnetic-nanoparticles-for-efficient-cell-transduction-with-semliki-forest-virus
#15
Baiba Kurena, Aleksandra Vežāne, Dace Skrastiņa, Olga Trofimova, Anna Zajakina
Semliki Forest virus (SFV) is a potential cancer gene therapy vector capable of providing high and transient expression of heterologous proteins in mammalian cells. However, SFV has shown suboptimal transduction levels in several cancer cell types as well as wide biodistribution of SFV has been observed after in vivo applications. Magnetic nanoparticles (MNPs) have been shown to increase cell transduction with several viral vectors in vitro under an external magnetic field and enhance magnetically guided viral vector delivery...
March 15, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28282392/predictive-value-of-initial-fdg-pet-features-for-treatment-response-and-survival-in-esophageal-cancer-patients-treated-with-chemo-radiation-therapy-using-a-random-forest-classifier
#16
Paul Desbordes, Su Ruan, Romain Modzelewski, Pascal Pineau, Sébastien Vauclin, Pierrick Gouel, Pierre Michel, Frédéric Di Fiore, Pierre Vera, Isabelle Gardin
PURPOSE: In oncology, texture features extracted from positron emission tomography with 18-fluorodeoxyglucose images (FDG-PET) are of increasing interest for predictive and prognostic studies, leading to several tens of features per tumor. To select the best features, the use of a random forest (RF) classifier was investigated. METHODS: Sixty-five patients with an esophageal cancer treated with a combined chemo-radiation therapy were retrospectively included. All patients underwent a pretreatment whole-body FDG-PET...
2017: PloS One
https://www.readbyqxmd.com/read/28277892/development-of-optimized-inhalable-gemcitabine-loaded-gelatin-nanocarriers-for-lung-cancer
#17
Susanne R Youngren-Ortiz, David B Hill, Peter R Hoffmann, Kenneth R Morris, Edward G Barrett, M Gregory Forest, Mahavir B Chougule
BACKGROUND: Aerosol delivery of chemotherapeutic nanocarriers represents a promising alternative for lung cancer therapy. This study optimized gemcitabine (Gem)-loaded gelatin nanocarriers (GNCs) cross-linked with genipin (Gem-GNCs) to evaluate their potential for nebulized lung cancer treatment. METHODS: Gem-GNCs were prepared by two-step desolvation and optimized through Taguchi design and characterized for physicochemical properties. Particle size and morphology were confirmed by scanning and transmission electron microscopy...
March 9, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28274258/the-performance-scales-disability-measure-for-multiple-sclerosis-use-and-sensitivity-to-clinically-important-differences
#18
Carolyn E Schwartz, Victoria E Powell
BACKGROUND: In 1993, the Performance Scales© was created to assess multi-dimensional disability in multiple sclerosis (MS). This tool has been used in a variety of settings and study designs internationally. The present work provides an overview of the history and psychometric characteristics of the Performance Scales©, reviews its use over the past two decades, and summarizes its responsiveness to subgroup differences. METHODS: A Google Scholar and Ovid search yielded 230 articles citing the Performance Scales©, of which 82 studies used the tool in empirical research...
March 9, 2017: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/28266080/efficacy-comparison-of-six-chemotherapeutic-combinations-for-osteosarcoma-and-ewing-s-sarcoma-treatment-a-network-meta-analysis
#19
Tao Zhang, Song Zhang, Feifei Yang, Lili Wang, Sigang Zhu, Bing Qiu, Shunhua Li, Zhongliang Deng
This study aimed to address the insufficiency of traditional meta-analysis and provide improved guidelines for the clinical practice of osteosarcoma treatment. The heterogeneity of the fixed-effect model was calculated, and when necessary, a random-effect model was adopted. Furthermore, the direct and indirect evidence was pooled together and exhibited in the forest plot and slash table. The surface under the cumulative ranking curve (SUCRA) value was also measured to rank each intervention. Finally heat plot was introduced to demonstrate the contribution of each intervention and the inconsistency between direct and indirect comparisons...
March 7, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28256961/gemcitabine-mono-therapy-versus-gemcitabine-plus-targeted-therapy-in-advanced-pancreatic-cancer-a-meta-analysis-of-randomized-phase-iii-trials
#20
REVIEW
Alessandro Ottaiano, Monica Capozzi, Chiara De Divitiis, Alfonso De Stefano, Gerardo Botti, Antonio Avallone, Salvatore Tafuto
BACKGROUND: Prognosis of advanced pancreatic cancer is dismal and the novel targeted therapies, albeit successfully used to treat many advanced tumors, have shown modest results. We performed a meta-analysis in order to quantify the effect size on survival of adding targeted therapy to single agent gemcitabine. METHODS: Randomized phase III trials comparing gemcitabine mono-therapy versus gemcitabine plus a targeted agent in first-line treatment of advanced pancreatic cancer designed on survival as primary outcome were selected...
March 2017: Acta Oncologica
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