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https://www.readbyqxmd.com/read/28102972/evaluating-the-clinical-copd-questionnaire-a-systematic-review
#1
REVIEW
Zijing Zhou, Aiyuan Zhou, Yiyang Zhao, Ping Chen
The Clinical COPD Questionnaire (CCQ) is recommended by the Global Initiative for Chronic Obstructive Lung Disease (GOLD) to evaluate health status in patients with COPD. The objective of this work was to systemically assess the reliability, validity, responsiveness and minimum clinically important difference (MCID) of the CCQ. A structured search was conducted in three databases to identify articles that evaluated the psychometric properties of the CCQ in individuals with COPD. Two investigators screened the title, abstract and full text of the articles to determine study eligibility and performed the data extraction...
February 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28102961/assessing-the-use-of-4dct-ventilation-in-pre-operative-surgical-lung-cancer-evaluation
#2
Yevgeniy Vinogradskiy, Matthew Jackson, Leah Schubert, Bernard Jones, Richard Castillo, Edward Castillo, Thomas Guerrero, John Mitchell, Chad Rusthoven, Moyed Miften, Brian Kavanagh
PURPOSE: A primary treatment option for lung cancer patients is surgical resection. Patients who have poor lung function prior to surgery are at increased risk of developing serious and life-threatening complications after surgical resection. Surgeons use nuclear medicine ventilation-perfusion (VQ) scans along with pulmonary function test (PFT) information to assess a patient's pre-surgical lung function. The nuclear medicine images and pre-surgery PFTs are used to calculate percent predicted postoperative (%PPO) PFT values by estimating the amount of functioning lung tissue that would be lost with surgical resection...
January 2017: Medical Physics
https://www.readbyqxmd.com/read/28102900/metabolic-theory-predicts-animal-self-thinning
#3
Tomas Jonsson
1.The Metabolic Theory of Ecology (MTE) predicts observed patterns in ecology based on metabolic rates of individuals. The theory is influential but also criticized for a lack of firm empirical evidence confirming MTE's quantitative predictions of processes, e.g. outcome of competition, at population or community level. 2.Self-thinning is a well-known population level phenomenon among plants, but a much less studied phenomenon in animal populations and no consensus exists on what a universal thinning slope for animal populations might be, or if it exists...
January 19, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28102344/predicting-drug-combination-index-and-simulating-the-network-regulation-dynamics-by-mathematical-modeling-of-drug-targeted-egfr-erk-signaling-pathway
#4
Lu Huang, Yuyang Jiang, Yuzong Chen
Synergistic drug combinations enable enhanced therapeutics. Their discovery typically involves the measurement and assessment of drug combination index (CI), which can be facilitated by the development and applications of in-silico CI predictive tools. In this work, we developed and tested the ability of a mathematical model of drug-targeted EGFR-ERK pathway in predicting CIs and in analyzing multiple synergistic drug combinations against observations. Our mathematical model was validated against the literature reported signaling, drug response dynamics, and EGFR-MEK drug combination effect...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28101898/prediction-of-excited-state-properties-of-oligoacene-crystals-using-polarizable-continuum-model-tuned-range-separated-hybrid-functional-approach
#5
Zhubin Hu, Bin Zhou, Zhenrong Sun, Haitao Sun
A methodology combining the polarizable continuum model and optimally-tuned range-separated (RS) hybrid functional was proposed for the quantitative characterization of the excited-state properties in oligoacene (from anthracene to hexacene) crystals. We show that it provides lowest vertical singlet and triplet excitation energies, singlet-triplet gap, and exciton binding energies in very good agreement with the available experimental data. We further find that it significantly outperforms its non-tuned RS counterpart and the widely used B3LYP functional, and even many-body perturbation theory within the GW approximation (based on a PBE starting point)...
January 19, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/28101791/strategies-to-reduce-30-day-readmissions-in-patients-with-cirrhosis
#6
REVIEW
Elliot B Tapper, Michael Volk
PURPOSE OF REVIEW: Approximately, one quarter of patients discharged after a hospitalization for decompensated cirrhosis will be readmitted within 30 days. These readmissions have been associated with increased morbidity and mortality, can be financially harmful to the health system, and may be partially preventable. This review summarizes the literature on readmissions, providing clinicians with tools for risk prediction and a taxonomy for preventative interventions. RECENT FINDINGS: Readmission strategies can be categorized according to complexity (simple versus complex) and specificity (focused versus broad)...
January 2017: Current Gastroenterology Reports
https://www.readbyqxmd.com/read/28101536/host-range-restriction-of-insect-specific-flaviviruses-occurs-at-several-levels-of-the-viral-life-cycle
#7
Sandra Junglen, Marvin Korries, Wolfgang Grasse, Janett Wieseler, Anne Kopp, Kyra Hermanns, Moises León-Juárez, Christian Drosten, Beate Mareike Kümmerer
The genus Flavivirus contains emerging arthropod-borne viruses (arboviruses) infecting vertebrates, as well as insect-specific viruses (ISVs) (i.e., viruses whose host range is restricted to insects). ISVs are evolutionary precursors to arboviruses. Knowledge of the nature of the ISV infection block in vertebrates could identify functions necessary for the expansion of the host range toward vertebrates. Mapping of host restrictions by complementation of ISV and arbovirus genome functions could generate knowledge critical to predicting arbovirus emergence...
January 2017: MSphere
https://www.readbyqxmd.com/read/28101345/%C3%AE-cell-function-prior-to-liver-transplantation-contributes-to-post-operative-diabetes
#8
Tatsuki Ichikawa, Naota Taura, Hisamitsu Miyaaki, Satoshi Miuma, Hidetaka Shibata, Takuya Honda, Masaaki Hidaka, Akihiko Soyama, Mitsuhisa Takatsuki, Susumu Eguchi, Kazuhiko Nakao
Liver cirrhosis and diabetes mellitus (DM) are closely associated. The present study aimed to determine whether liver transplantation (LT) may prevent/cure DM in patients with cirrhosis and whether the degree of glucose tolerance prior to transplantation is associated with the onset of DM after transplantation. Seventy-three patients who received a living donor LT at Nagasaki University Hospital (Nagasaki, Japan) between November 2005 and December 2012 were recruited. Among them, patients were considered diabetic if they had been prescribed diabetes medications or had impaired glucose tolerance, as evidenced by an oral glucose tolerance test (OGTT)...
December 2016: Biomedical Reports
https://www.readbyqxmd.com/read/28101273/who-scared-the-cat-a-molecular-crime-scene-investigation-laboratory-exercise
#9
Laura E Ott, Susan D Carson
This introductory laboratory exercise gives first-year life science majors or nonmajors an opportunity to gain knowledge and experience in basic bioinformatics and molecular biology laboratory techniques and analysis in the context of a mock crime scene investigation. In this laboratory, students determine if a human (Lady) or dog (Kona) committed the fictional crime of scaring a cat. Students begin by performing in silico PCR using provided dog- and human-specific PCR primers to determine the sequences to be amplified and predict PCR amplicon sizes...
December 2016: Journal of Microbiology & Biology Education: JMBE
https://www.readbyqxmd.com/read/28101219/n-terminal-truncated-carboxypeptidase-e-expression-is-associated-with-poor-prognosis-of-lung-adenocarcinoma
#10
Jing Sun, Dawei Meng, Li Li, Xin Tian, Yunji Jia, Hongyue Wang, Huihui Yu, Tiemin Sun, Aibing Qu, Hui Shen, Jimin Bao, Guirong Zhang
Lung cancer is a malignant tumor with high morbidity and mortality rates. To date, no suitable molecular diagnostic tool to predict disease recurrence and metastasis has been identified. The current study aimed to evaluate the potential of N-terminal truncated carboxypeptidase E (CPEΔN) to predict the recurrence and metastasis of lung adenocarcinoma. Western blotting revealed the co-expression of CPE and CPEΔN in the surgically collected pathological and pericarcinoma tissues tissues of 62.1% (59/95) lung adenocarcinoma patients...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28101172/adenosine-triphosphate-stress-99m-tc-methoxyisobutylisonitrile-gated-myocardial-perfusion-imaging-efficacy-in-diagnosing-stent-restenosis-following-coronary-stent-implantation
#11
Pengfei Zhang, Song Chen, Yang Li, Qiuhong Du, Lijuan Wang, Yingxian Sun, Yaming Li
Coronary stent restenosis rate following implantation is considerably high. The adenosine stress gated myocardial perfusion imaging (G-MPI) method has been widely used in the diagnosis, risk stratification and prognosis evaluation of coronary heart disease; however, the high cost of adenosine limits its clinical application. The aim of the present study was to investigate the efficacy of adenosine triphosphate (ATP) stress (99m)Tc-methoxyisobutylisonitrile ((99m)Tc-MIBI) G-MPI for diagnosis in-stent restenosis following coronary stent implantation...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28100899/effectiveness-of-computed-tomography-attenuation-values-in-characterization-of-pericardial-effusion
#12
Mehmet Serkan Çetin, Elif Hande Özcan Çetin, Mustafa Özdemir, Serkan Topaloğlu, Dursun Aras, Ahmet Temizhan, Sinan Aydoğdu
OBJECTIVE: The aim of this study was to evaluate the effectiveness of computed tomography (CT) attenuation values in the characterization of pericardial effusion. METHODS: This study consisted of 96 patients with pericardial effusion who underwent pericardiocentesis. For further diagnostic evaluation of pericardial effusion, all the patients were assessed by thorax CT. CT attenuation values were measured from at least 5 different areas of pericardial fluid by specifying the largest region of interest...
January 17, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28100704/frequency-of-abnormal-pulmonary-computed-tomography-findings-in-asylum-seeking-refugees-in-turkey
#13
Levent Soydan, Ali Aslan Demir, Atadan Tunaci
BACKGROUND: Lungs are particularly vulnerable to both acute infections, including TB, and chronic diseases such as chronic obstructive pulmonary disease, as well as to malignancies, all of which require particular attention during war times in which health conditions are far from optimal. METHODS: This retrospective cross-sectional study included 1149 refugees that underwent thoracic computed tomography (CT) for respiratory symptoms between March 2013 and February 2015 in Turkey...
January 18, 2017: International Health
https://www.readbyqxmd.com/read/28100656/perceptual-attraction-in-tool-use-evidence-for-a-reliability-based-weighting-mechanism
#14
Nienke B Debats, Marc O Ernst, Herbert Heuer
Humans are well able to operate tools whereby their hand movement is linked, via a kinematic transformation, to a spatially distant object moving in a separate plane of motion. An everyday example is controlling a cursor on a computer monitor. Despite these separate reference frames, the perceived positions of the hand and the object were found to be biased towards each other. We propose that this perceptual attraction is based on the principles by which the brain integrates redundant sensory information of single objects or events, known as optimal multisensory integration...
January 18, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28100489/tale-induced-bhlh-transcription-factors-that-activate-a-pectate-lyase-contribute-to-water-soaking-in-bacterial-spot-of-tomato
#15
Allison R Schwartz, Robert Morbitzer, Thomas Lahaye, Brian J Staskawicz
AvrHah1 [avirulence (avr) gene homologous to avrBs3 and hax2, no. 1] is a transcription activator-like (TAL) effector (TALE) in Xanthomonas gardneri that induces water-soaked disease lesions on fruits and leaves during bacterial spot of tomato. We observe that water from outside the leaf is drawn into the apoplast in X. gardneri-infected, but not X. gardneriΔavrHah1 (XgΔavrHah1)-infected, plants, conferring a dark, water-soaked appearance. The pull of water can facilitate entry of additional bacterial cells into the apoplast...
January 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28100276/realising-stratified-psychiatry-using-multidimensional-signatures-and-trajectories
#16
Dan W Joyce, Angie A Kehagia, Derek K Tracy, Jessica Proctor, Sukhwinder S Shergill
BACKGROUND: Stratified or personalised medicine targets treatments for groups of individuals with a disorder based on individual heterogeneity and shared factors that influence the likelihood of response. Psychiatry has traditionally defined diagnoses by constellations of co-occurring signs and symptoms that are assigned a categorical label (e.g. schizophrenia). Trial methodology in psychiatry has evaluated interventions targeted at these categorical entities, with diagnoses being equated to disorders...
January 18, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28100231/can-screening-instruments-accurately-determine-poor-outcome-risk-in-adults-with-recent-onset-low-back-pain-a-systematic-review-and-meta-analysis
#17
Emma L Karran, James H McAuley, Adrian C Traeger, Susan L Hillier, Luzia Grabherr, Leslie N Russek, G Lorimer Moseley
BACKGROUND: Delivering efficient and effective healthcare is crucial for a condition as burdensome as low back pain (LBP). Stratified care strategies may be worthwhile, but rely on early and accurate patient screening using a valid and reliable instrument. The purpose of this study was to evaluate the performance of LBP screening instruments for determining risk of poor outcome in adults with LBP of less than 3 months duration. METHODS: Medline, Embase, CINAHL, PsycINFO, PEDro, Web of Science, SciVerse SCOPUS, and Cochrane Central Register of Controlled Trials were searched from June 2014 to March 2016...
January 19, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28100072/trial-vocal-fold-injection-predicts-thyroplasty-outcomes-in-nonparalytic-glottic-incompetence
#18
Lukas D Dumberger, Lewis Overton, Robert A Buckmire, Rupali N Shah
OBJECTIVES: Trial vocal fold injection (TVFI) may be used prior to permanent medialization when voice outcome is uncertain. We aimed to determine whether voice outcomes of TVFI are predictive of, or correlate with outcomes after type I Gore-Tex medialization thyroplasty (GMT) in patients with nonparalytic glottic incompetence (GI). METHODS: Thirty-five patients with nonparalytic GI who underwent TVFI followed by GMT were retrospectively reviewed. Change in voice-related quality of life (VRQOL) after TVFI was compared to change in VRQOL 3 to 9 months after GMT...
January 1, 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28099803/deep-learning-to-predict-the-formation-of-quinone-species-in-drug-metabolism
#19
Tyler B Hughes, S Joshua Swamidass
Many adverse drug reactions are thought to be caused by electrophilically reactive drug metabolites that conjugate to nucleophilic sites within DNA and proteins, causing cancer or toxic immune responses. Quinone species, including quinone-imines, quinone-methides, and imine-methides, are electrophilic Michael acceptors that are of- ten highly reactive, and comprise over 40% of all known reactive metabolites. Quinone metabolites are created by cytochromes P450 and peroxidases. For example, cy- tochromes P450 oxidize acetaminophen to N-acetyl-p-benzoquinone imine, which is electrophilically reactive and covalently binds to nucleophilic sites within proteins...
January 18, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28099523/the-role-of-liquid-based-cytology-and-ancillary-techniques-in-the-peritoneal-washing-analysis-our-institutional-experience
#20
Esther Rossi, Tommaso Bizzarro, Maurizio Martini, Adhemar Longatto-Filho, Fernando Schmitt, Anna Fagotti, Giovanni Scambia, Gian Franco Zannoni
BACKGROUND: The cytological analysis of peritoneal effusions serves as a diagnostic and prognostic aid for either primary or metastatic diseases. Among the different cytological preparations, liquid based cytology (LBC) represents a feasible and reliable method ensuring also the application of ancillary techniques (i.e immunocytochemistry-ICC and molecular testing). METHODS: We recorded 10348 LBC peritoneal effusions between January 2000 and December 2014. They were classified as non-diagnostic (ND), negative for malignancy-NM, atypical-suspicious for malignancy-SM and positive for malignancy-PM...
2017: PloS One
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