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https://www.readbyqxmd.com/read/29141396/proposal-of-a-pretreatment-nomogram-for-predicting-local-recurrence-after-intensity-modulated-radiation-therapy-in-t4-nasopharyngeal-carcinoma-a-retrospective-review-of-415-chinese-patients
#1
Lu-Lu Zhang, Yi-Yang Li, Jiang Hu, Guan-Qun Zhou, Lei Chen, Wen-Fei Li, Ai-Hua Lin, Jun Ma, Zhen-Yu Qi, Ying Sun
Purpose: Local relapse-free survival (LRFS) differs widely among patients with T4 category nasopharyngeal carcinoma (NPC). We aimed to build a nomogram incorporating clinicopathological information to predict LRFS in T4 NPC after definitive intensity-modulated radiation therapy (IMRT). Methods and Materials: Retrospective study of 415 Chinese patients with non-metastatic T4 NPC treated with definitive IMRT with or without chemotherapy at our cancer center between October 2009 and September 2013...
November 15, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/29141363/-characteristics-of-high-resolution-diffusion-weighted-imaging-apparent-diffusion-coefficient-histogram-and-its-correlations-with-cancer-stages-in-patients-with-nasopharyngeal-carcinoma
#2
G J Wang, Y Wang, Y Ye, F Chen, Y T Lu, S L Li
Objective: To investigate the features of apparent diffusion coefficient (ADC) histogram parameters based on entire tumor volume data in high resolution diffusion weighted imaging of nasopharyngeal carcinoma (NPC) and to evaluate its correlations with cancer stages. Methods: This retrospective study included 154 cases of NPC patients[102 males and 52 females, mean age (48±11) years]who had received readout segmentation of long variable echo trains of MRI scan before radiation therapy. The area of tumor was delineated on each section of axial ADC maps to generate ADC histogram by using Image J...
November 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29141275/roles-of-the-declive-folium-and-tuber-cerebellar-vermian-lobules-in-sportspeople
#3
In Sung Park, Nam Joon Lee, Im Joo Rhyu
The cerebellum plays vital roles in balance control and motor learning, including in saccadic adaptation and coordination. It consists of the vermis and two hemispheres and is anatomically separated into ten lobules that are designated as I-X. Although neuroimaging and clinical studies suggest that functions are compartmentalized within the cerebellum, the function of each cerebellar lobule is not fully understood. Electrophysiological and lesion studies in animals as well as neuroimaging and lesion studies in humans have revealed that vermian lobules VI and VII (declive, folium, and tuber) are critical for controlling postural balance, saccadic eye movements, and coordination...
September 28, 2017: Journal of Clinical Neurology
https://www.readbyqxmd.com/read/29141272/peripheral-airway-dysfunction-and-relationship-with-symptoms-in-smokers-with-preserved-spirometry
#4
Kanika Jetmalani, Cindy Thamrin, Claude S Farah, Amy Bertolin, David G Chapman, Norbert Berend, Cheryl M Salome, Gregory G King
BACKGROUND AND OBJECTIVE: Smokers develop respiratory symptoms and peripheral airway dysfunction even when spirometry is preserved. Multiple breath nitrogen washout (MBNW) and impulse oscillometry system (IOS) are potentially useful measures of peripheral airway function but they have not been compared in such subjects. We hypothesized that MBNW and IOS are jointly abnormal in smokers with normal spirometry and that these abnormalities relate to respiratory symptoms. METHODS: Eighty smokers with normal spirometry completed a symptom questionnaire, had ventilation heterogeneity in diffusion (Sacin) and convection-dependent (Scond) airways and trapped gas volume at functional residual capacity as a percentage of vital capacity (%VtrFRC/VC) measured by MBNW...
November 15, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/29141134/cellular-analysis-using-microfluidics
#5
Jay Sibbitts, Kathleen A Sellens, Shu Jia, Scott A Klasner, Christopher T Culbertson
Cells are the fundamental building blocks of life. Changes within a cell can propagate throughout much larger, more complex systems. Understanding how these changes arise internally within a cell and how cellular signals are transmitted through larger systems of cells, whether those systems be an organ, organism or a larger environmental assemblage, are critical, for example, to understanding how diseases arise and spread and how cells communicate and coordinate their actions. Microfluidic devices provide unique platforms from which to study many of these intra- and intercellular processes...
November 15, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29141102/statistically-optimized-ceftriaxone-sodium-biotransformation-through-achromobacter-xylosoxidans-strain-cef6-an-unusual-insight-for-bioremediation
#6
Ahmed Anan, Khaled M Ghanem, Amira M Embaby, Ahmed Hussein, Moustafa Y El-Naggar
The present study underlines a unique promising approach toward efficient biotransformation of ceftriaxone sodium (Ceftx), a highly frequent prescribed cephalosporin antibiotic, by a newly bacterium namely Achromobacter xylosoxidans strain Cef6 isolated from Ceftx contaminated raw materials in pharmaceutical industries. A three step sequential statistical-mathematical approach (Plackett-Burman design [PBD], Central Composite Design [CCD], and ridge-canonical analyses) was anticipated to optimize the biotransformation process...
November 15, 2017: Journal of Basic Microbiology
https://www.readbyqxmd.com/read/29141045/csf-in-the-ventricles-of-the-brain-behaves-as-a-relay-medium-for-arteriovenous-pulse-wave-phase-coupling
#7
William E Butler, Pankaj K Agarwalla, Patrick Codd
The ventricles of the brain remain perhaps the largest anatomic structure in the human body without established primary purpose, even though their existence has been known at least since described by Aristotle. We hypothesize that the ventricles help match a stroke volume of arterial blood that arrives into the rigid cranium with an equivalent volume of ejected venous blood by spatially configuring cerebrospinal fluid (CSF) to act as a low viscosity relay medium for arteriovenous pulse wave (PW) phase coupling...
2017: PloS One
https://www.readbyqxmd.com/read/29141041/effects-of-a-mixed-berry-beverage-on-cognitive-functions-and-cardiometabolic-risk-markers-a-randomized-cross-over-study-in-healthy-older-adults
#8
Anne Nilsson, Ilkka Salo, Merichel Plaza, Inger Björck
BACKGROUND: Berries and associated bioactive compounds, e.g. polyphenols and dietary fibre (DF), may have beneficial implications with respect to the metabolic syndrome, including also cognitive functions. The aim of this study was to evaluate effects on cognitive functions and cardiometabolic risk markers of 5 wk intervention with a mixture of berries, in healthy humans. METHODS: Forty healthy subjects between 50-70 years old were provided a berry beverage based on a mixture of berries (150g blueberries, 50g blackcurrant, 50g elderberry, 50g lingonberries, 50g strawberry, and 100g tomatoes) or a control beverage, daily during 5 weeks in a randomized crossover design...
2017: PloS One
https://www.readbyqxmd.com/read/29141022/trabecular-bone-in-the-calcaneus-of-runners
#9
Andrew Best, Brigitte Holt, Karen Troy, Joseph Hamill
Trabecular bone of the human calcaneus is subjected to extreme repetitive forces during endurance running and should adapt in response to this strain. To assess possible bone functional adaptation in the posterior region of the calcaneus, we recruited forefoot-striking runners (n = 6), rearfoot-striking runners (n = 6), and non-runners (n = 6), all males aged 20-41 for this institutionally approved study. Foot strike pattern was confirmed for each runner using a motion capture system. We obtained high resolution peripheral computed tomography scans of the posterior calcaneus for both runners and non-runners...
2017: PloS One
https://www.readbyqxmd.com/read/29141018/evaluation-of-the-proliferation-marker-ki-67-in-a-large-prostatectomy-cohort
#10
Elin Richardsen, Sigve Andersen, Samer Al-Saad, Mehrdad Rakaee, Yngve Nordby, Mona Irene Pedersen, Nora Ness, Thea Grindstad, Ingeborg Movik, Tom Dønnem, Roy Bremnes, Lill-Tove Busund
The tumor proliferation index marker Ki-67 is strongly associated with tumor cell proliferation, growth and progression, and is widely used in routine clinicopathological investigation. Prostate cancer is a complex multifaceted and biologically heterogeneous disease, and overtreatment of localized, low volume indolent tumors, is evident. Here, we aimed to assess Ki-67 expression and related outcomes of 535 patients treated with radical prostatectomy. The percentage of tumor epithelial cells expressing Ki-67 was determined by immunohistochemical assay, both digital image analysis and visual scoring by light microscope were used for quantification...
2017: PloS One
https://www.readbyqxmd.com/read/29140981/wavelet-brain-angiography-suggests-arteriovenous-pulse-wave-phase-locking
#11
William E Butler
When a stroke volume of arterial blood arrives to the brain, the total blood volume in the bony cranium must remain constant as the proportions of arterial and venous blood vary, and by the end of the cardiac cycle an equivalent volume of venous blood must have been ejected. I hypothesize the brain to support this process by an extraluminally mediated exchange of information between its arterial and venous circulations. To test this I introduce wavelet angiography methods to resolve single moving vascular pulse waves (PWs) in the brain while simultaneously measuring brain pulse motion...
2017: PloS One
https://www.readbyqxmd.com/read/29140979/ginsenoside-rg3-inhibits-angiogenesis-in-a-rat-model-of-endometriosis-through-the-vegfr-2-mediated-pi3k-akt-mtor-signaling-pathway
#12
Yang Cao, Qing Ye, Mengfei Zhuang, Shuwu Xie, Ruihua Zhong, Jingang Cui, Jieyun Zhou, Yan Zhu, Tingting Zhang, Lin Cao
OBJECTIVE: This study aimed to investigate the link between the inhibitory effect of ginsenoside Rg3 on the ectopic endometrium growth and the VEGFR-2-mediated PI3K/Akt/mTOR signaling pathway, a mechanism known to inhibit angiogenesis and induce ectopic endometrial cell apoptosis. MATERIALS AND METHODS: A model of endometriosis was established by allotransplantation in rats. The rats were randomly divided into 5 groups: the ginsenoside Rg3 low-dose group (group A,5mg/kgBW/d of ginsenoside Rg3), the ginsenoside Rg3 high-dose group (group B, 10mg/kgBW/d of ginsenoside Rg3), the gestrinone group (group C, 0...
2017: PloS One
https://www.readbyqxmd.com/read/29140978/adherence-to-inhaled-therapies-of-copd-patients-from-seven-latin-american-countries-the-lassyc-study
#13
Maria Montes de Oca, Ana Menezes, Fernando C Wehrmeister, Maria Victorina Lopez Varela, Alejandro Casas, Luis Ugalde, Alejandra Ramirez-Venegas, Laura Mendoza, Ana López, Filip Surmont, Marc Miravitlles
BACKGROUND: This study assessed the adherence profiles to inhaled therapies and the agreement between two patient self-report adherence methods in stable COPD lpatients from seven Latin American countries. METHODS: This observational, cross-sectional, multinational, multicenter study involved 795 COPD patients (post-bronchodilator forced expiratory volume in 1 second/forced vital capacity [FEV1/FVC] <0.70). Adherence to inhaled therapy was assessed using the specific Test of Adherence to Inhalers (10-item TAI) and the generic 8-item Morisky Medication Adherence Scale (MMAS-8) questionnaires...
2017: PloS One
https://www.readbyqxmd.com/read/29140948/hypertonic-saline-resuscitation-following-emergent-laparotomy-and-temporary-abdominal-closure
#14
Tyler J Loftus, Philip A Efron, Trina M Bala, Martin D Rosenthal, Chasen A Croft, R Stephen Smith, Frederick A Moore, Alicia M Mohr, Scott C Brakenridge
BACKGROUND: Our objective was to establish the safety of 3% hypertonic saline (HTS) resuscitation for trauma and acute care surgery patients undergoing emergent laparotomy and temporary abdominal closure (TAC) with the hypothesis that HTS administration would be associated with hyperosmolar hypercholoremic acidosis, lower resuscitation volumes, and higher fascial closure rates, without adversely affecting renal function. METHODS: We performed a retrospective cohort analysis of 189 trauma and acute care surgery patients who underwent emergent laparotomy and TAC, comparing patients with normal baseline renal function who received 3% HTS at 30 mL/h (n=36) to patients with standard resuscitation (n=153) by baseline characteristics, resuscitation parameters, and outcomes including primary fascial closure and KDIGO stages of acute kidney injury...
November 14, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29140904/reconstruction-of-microtias-with-constricted-ear-features-a-22-year-experience
#15
Chul Park, Jung Youl Park
BACKGROUND: The surgical correction of 'microtias with constricted ear features' has remained a challenge due to the variable shape and large volume of the remnant cartilage and skin involved. In order to clarify how this remnant cartilage and skin should be treated, we have reviewed and analyzed cases operated at our Center. METHODS: A total of 167 cases of Microtia with Constricted Ear Features, operated from 1992 to 2014, were included in the study. They were reviewed through medical records and photographs, analysis of surgical methods, and postoperative outcomes...
November 11, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29140896/cold-water-ingestion-improves-exercise-tolerance-of-heat-sensitive-people-with-ms
#16
Georgia K Chaseling, Davide Filingeri, Michael Barnett, Phu Hoang, Scott L Davis, Ollie Jay
PURPOSE: Heat intolerance commonly affects the exercise capacity of people with multiple sclerosis (MS) during bouts of hot weather. Cold-water ingestion is a simple cooling strategy but its efficacy for prolonging exercise capacity with MS remains undetermined. We sought to identify whether cold-water ingestion blunts exercise-induced rises in body temperature and improves exercise tolerance in heat-sensitive individuals with MS. METHODS: On two separate occasions, 20 participants (10 relapsing-remitting MS (EDSS: 1-5); 10 age-matched healthy controls (CON)) cycled at ~40% VO2max at 30°C, 30%RH until volitional exhaustion (or a maximum of 60 min)...
November 15, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29140865/influence-of-syringe-volume-on-foam-stability-in-sclerotherapy-for-varicose-vein-treatment
#17
Taoping Bai, Wentao Jiang, Yubo Fan
BACKGROUND: Despite the popularity of sclerotherapy for treating varicose veins, it still exhibits various problems, such as pulmonary embolism, deep-vein thrombosis, phlebitis, and visual disorders. OBJECTIVE: To investigate syringe volume influence on foam stability, obtain the foam decay rule, and provide a reference for clinics. MATERIALS AND METHODS: Five types of syringes are used to prepare foam at room temperature with various liquid-gas ratios...
November 14, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/29140808/randomized-trial-evaluating-the-effect-of-aged-garlic-extract-with-supplements-versus-placebo-on-adipose-tissue-surrogates-for-coronary-atherosclerosis-progression
#18
Irfan Zeb, Naser Ahmadi, Ferdinand Flores, Matthew J Budoff
AIMS: Increased epicardial adipose tissue (EAT), pericardial adipose tissue (PAT), periaortic adipose tissue (PaAT), and subcutaneous adipose tissue (SAT) are mediators of metabolic risk, and are associated with the severity of coronary artery calcium (CAC). Aged garlic extract (AGE) has been shown to reduce the progression of coronary atherosclerosis. This study evaluates the effect of AGE with supplements (AGE+S) on EAT, PAT, SAT, and PaAT. METHODS: Sixty asymptomatic participants participated in a randomized trial evaluating the effect of AGE+S versus placebo on coronary atherosclerosis progression, and underwent CAC at baseline and after 12 months of treatment...
November 14, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/29140757/new-insights-into-lymphoma-pathogenesis
#19
Kojo S J Elenitoba-Johnson, Megan S Lim
Lymphomas represent clonal proliferations of lymphocytes that are broadly classified based upon their maturity (peripheral or mature versus precursor) and lineage (B cell, T cell, and natural killer cell). Insights into the pathogenetic mechanisms involved in lymphoma impact the classification of lymphoma and have significant implications for the diagnosis and clinical management of patients. Serial scientific and technologic advances over the last 30 years in immunology, cytogenetics, molecular biology, gene expression profiling, mass spectrometry-based proteomics, and, more recently, next-generation sequencing have contributed to greatly enhance our understanding of the pathogenetic mechanisms in lymphoma...
November 15, 2017: Annual Review of Pathology
https://www.readbyqxmd.com/read/29140756/cellular-and-molecular-mechanisms-of-autoimmune-hepatitis
#20
G J Webb, G M Hirschfield, E L Krawitt, M E Gershwin
Autoimmune hepatitis is an uncommon idiopathic syndrome of immunemediated destruction of hepatocytes, typically associated with autoantibodies. The disease etiology is incompletely understood but includes a clear association with human leukocyte antigen (HLA) variants and other non- HLA gene variants, female sex, and the environment. Pathologically, there is a CD4+ T cell-rich lymphocytic inflammatory infiltrate with variable hepatocyte necrosis and subsequent hepatic fibrosis. Attempts to understand pathogenesis are informed by several monogenetic syndromes that may include autoimmune liver injury, by several drug and environmental agents that have been identified as triggers in a minority of cases, by human studies that point toward a central role for CD4+ effector and regulatory T cells, and by animal models of the disease...
November 15, 2017: Annual Review of Pathology
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