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https://www.readbyqxmd.com/read/28799926/daily-runoff-prediction-using-the-linear-and-non-linear-models
#1
Alireza Sharifi, Yagob Dinpashoh, Rasoul Mirabbasi
Runoff prediction, as a nonlinear and complex process, is essential for designing canals, water management and planning, flood control and predicting soil erosion. There are a number of techniques for runoff prediction based on the hydro-meteorological and geomorphological variables. In recent years, several soft computing techniques have been developed to predict runoff. There are some challenging issues in runoff modeling including the selection of appropriate inputs and determination of the optimum length of training and testing data sets...
August 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28749373/dosimetric-evaluation-of-a-commercial-proton-spot-scanning-monte-carlo-dose-algorithm-comparisons-against-measurements-and-simulations
#2
Jatinder Saini, Dominic Maes, Alexander Egan, Stephen R Bowen, Sara St James, Martin Janson, Tony Wong, Charles Bloch
RaySearch Americas Inc. (NY) has introduced a commercial Monte Carlo dose algorithm (RS-MC) for routine clinical use in proton spot scanning. In this report, we provide a validation of this algorithm against phantom measurements and simulations in GATE/GEANT4 software package. We also compared the performance of RayStation analytical algorithm (RS-PBA) against the RS-MC algorithm. Methods: A beam model (G-MC) for spot scanning gantry at our proton center was implemented in the GATE software package. The model was validated against measurements in a water phantom and was used for benchmarking the RS-MC...
July 27, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28718770/benchmarking-gate-geant4-for-sup-16-sup-o-ion-beam-therapy
#3
Andreas Franz Resch, Hermann Fuchs, Dietmar Georg
Oxygen (<sup>16</sup>O) ions are a potential alternative to carbon ions in ion beam therapy. Their enhanced linear energy transfer indicates a higher relative biological effectiveness and a reduced oxygen enhancement ratio. Due to the limited availability of <sup>16</sup>O ion beams, Monte Carlo (MC) transport codes are important research tools to investigate their potential. The purpose of this study was to validate GATE/Geant4 for <sup>16</sup>O ion beam therapy on experimental data from literature...
July 18, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28684134/exercise-training-reduces-alcohol-consumption-but-does-not-affect-hpa-axis-activity-in-heavy-drinkers
#4
Kalliopi Georgakouli, Eirini Manthou, Panagiotis Georgoulias, Anastasia Ziaka, Ioannis G Fatouros, Georgios Mastorakos, Yiannis Koutedakis, Yannis Theodorakis, Athanasios Z Jamurtas
BACKGROUND: It has been suggested that physical exercise could have potential beneficial effects in substance abusers, which are based on both physiological and psychological theories. Although a few studies have examined the effect of exercise on alcohol intake and fitness in individuals with alcohol use disorders (AUDs), there is a gap in the literature concerning the physiological and biochemical mechanisms that could be affected by physical exercise in this population. PURPOSE: The purpose of the present study was to examine physiological and biochemical responses to exercise after an 8-week supervised exercise training (ET) intervention in heavy drinkers...
July 3, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28660888/use-of-a-gamma-2-herpesvirus-as-a-vector-to-deliver-antibodies-to-rhesus-monkeys
#5
G F Bischof, Y C Shin, S P Fuchs, J M Martinez-Navio, W A Lauer, E G Rakasz, R C Desrosiers
The gamma-2 herpesvirus of rhesus monkeys, rhesus monkey rhadinovirus (RRV), persists principally in B cells of its host. We constructed recombinant strains of RRV expressing the rhesus monkey-derived anti-SIV monoclonal antibodies 4L6 and 5L7 and compared the RRV-mediated in vivo delivery of these antibodies in rhesus monkeys with previous studies that utilized intramuscular delivery with an adeno-associated virus (AAV) vector. Recombinant RRV-4L6 and RRV-5L7 were both shown to stably produce the antibodies in persistently infected B-cell lines in culture...
June 29, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28641570/1h-post-load-blood-glucose-in-the-identification-of-proatherogenic-cardiometabolic-profile-in-obesity
#6
Djordje S Popovic, Dragana Tomic-Naglic, Milena Mitrovic, Zeljko Zivanovic, Bojan Vukovic, Edita Stokic
BACKGROUND AND AIM: Current data show that 1h oral glucose tolerance test (OGTT) blood glucose (1h-BG) might identify persons at increased risk of developing type 2 diabetes and cardiovascular diseases more precisely than fasting blood glucose (FBG) and 2h OGTT blood glucose (2h-BG). The aim of study was to determine whether is justified to use 1h-BG, instead of traditional blood glucose measurements, in cardiometabolic profiling of obese individuals. METHOD: Cross-sectional study enrolled 60 obese individuals without previous history of diabetes and other cardiometabolic disorders...
June 13, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/28638431/erzhi-pill%C3%A2-repairs-experimental-liver-injury-via-tsc-mtor-signaling-pathway-inhibiting-excessive-apoptosis
#7
Bu-Gao Zhou, Hai-Mei Zhao, Xiu-Yun Lu, Xin Wang, Yong Zou, Rong Xu, Hai-Yang Yue, Yi Liu, Zheng-Yun Zuo, Duan-Yong Liu
The present study aimed to investigate the mechanism of hepatoprotective effect of Erzhi Pill (EZP) on the liver injury via observing TSC/mTOR signaling pathway activation. The experimental liver injury was induced by 2-acetylaminofluorene (2-AAF) treatment combined with partial hepatectomy (PH). EZP treated 2-AAF/PH-induced liver injury by the therapeutic and prophylactic administration. After the administration of EZP, the activities of aspartic transaminase (AST), alanine aminotransferase (ALT), alkaline phosphatase (AKP), and gamma-glutamyl transpeptidase (γ-GT) were decreased, followed by the decreased levels of hepatocyte apoptosis and caspase-3 expression...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28605332/protective-effect-of-curcumin-against-carbofuran-induced-toxicity-in-wistar-rats
#8
Binitha P Purushothaman, Ramadasan Kuttan
Pesticide carbofuran (Furadan) is known to be an inhibitor of nerve impulses by its inhibition of acetylcholinesterase. Oral administration of carbofuran also produced tissue damage as evidenced by the increased the activities of creatine kinase (CK), lactate dehydrogenase (LDH), and gamma glutamyl transferase (γ-GT) in tissues and serum. Against carbofuran, curcumin restored the activities of acetylcholinesterase, LDH, CK and γ- GT in animals. Curcumin also restored the reduced mitochondrial enzymes in rat liver caused by carbofuran...
2017: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/28581438/environmental-monitoring-through-use-of-silica-based-tld
#9
Siti Rozaila Zahariman, M Khandaker, Siti Fairus Abdul Sani, Siti Sabtu, Yusoff Amin, Mohd Jamil Maah, David Bradley
The sensitivity of a novel silica-based fibre-form thermoluminescence dosimeter is tested off-site of a rare-earths processing plant, investigating the potential for obtaining baseline measurements of naturally occurring radioactive materials. The dosimeter, a Ge-doped collapsed Photonic Crystal Fibre (PCFc) co-doped with B, has been calibrated against commercially available TLD (TLD-200 and TLD-100) using a bremsstrahlung (tube-based) x-ray source. Eight sampling sites within 1 to 20 km of the perimeter of the rare-earths facility have been identified, TLDs (silica- as well as TLD-200 and TLD-100) in each case being buried within soil at fixed depth, allowing measurements to be obtained, in this case for protracted periods of exposure of between two to eight months...
June 5, 2017: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/28567043/simultaneous-subcutaneous-and-intranasal-administration-of-a-caf01-adjuvanted-chlamydia-vaccine-elicits-elevated-iga-and-protective-th1-th17-responses-in-the-genital-tract
#10
Jeanette Erbo Wern, Maria Rathmann Sorensen, Anja Weinreich Olsen, Peter Andersen, Frank Follmann
The selection of any specific immunization route is critical when defining future vaccine strategies against a genital infection like Chlamydia trachomatis (C.t.). An optimal Chlamydia vaccine needs to elicit mucosal immunity comprising both neutralizing IgA/IgG antibodies and strong Th1/Th17 responses. A strategic tool to modulate this immune profile and mucosal localization of vaccine responses is to combine parenteral and mucosal immunizations routes. In this study, we investigate whether this strategy can be adapted into a two-visit strategy by simultaneous subcutaneous (SC) and nasal immunization...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28357030/factors-associated-with-long-term-survival-after-liver-transplantation-a-retrospective-cohort-study
#11
Sven Pischke, Marie C Lege, Moritz von Wulffen, Antonio Galante, Benjamin Otto, Malte H Wehmeyer, Uta Herden, Lutz Fischer, Björn Nashan, Ansgar W Lohse, Martina Sterneck
AIM: To identify predictive factors associated with long-term patient and graft survival (> 15 years) in liver transplant recipients. METHODS: Medical charts of all de novo adult liver transplant recipients (n = 140) who were transplanted in Hamburg between 1997 and 1999 were retrospectively reviewed. In total, 155 transplantations were identified in this time period (15 re-transplantations). Twenty-six orthotopic liver transplant (OLT) recipients were early lost to follow-up due to moving to other places within 1 year after transplantation...
March 18, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28356060/genetic-variation-in-the-microsomal-triglyceride-transfer-protein-493g-t-is-associated-with-hepatic-steatosis-in-patients-infected-with-hepatitis-c-virus
#12
Mariana Cavalheiro Magri, Thamiris Vaz Gago Prata, Caroline Manchiero, Bianca Peixoto Dantas, Celso Carmo Mazza, Fátima Mitiko Tengan
BACKGROUND: In chronic hepatitis C, the fibrosis progression rates are extremely variable and can be influenced by factors associated with the host, virus and environment. Among the associated metabolic factors, hepatic steatosis is characterized by an accumulation of triglycerides in hepatocytes. In the host, genetic determinants of hepatic steatosis are observed, such as single-nucleotide polymorphisms (SNPs) in the microsomal triglyceride transfer protein (MTTP) gene. The MTTP -493G/T SNP appears to play an important role in the regulation of gene expression and influences the plasma concentration of circulating low-density lipoprotein (LDL)...
March 29, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28351463/tuberculin-skin-test-and-interferon-gamma-release-assay-use-among-privately-insured-persons-in-the-united-states
#13
K Owusu-Edusei, E L Stockbridge, C A Winston, M Kolasa, R Miramontes
OBJECTIVE: To describe tuberculin skin test (TST) and interferon-gamma release assay (IGRA) (i.e., QuantiFERON®-TB [QFT] and T-SPOT®.TB [T-SPOT]) use among privately insured persons in the United States over a 15-year period. METHODS: We used current procedural terminology (CPT) codes for the TST and IGRAs to extract out-patient claims (2000-2014) and determined usage (claims/100 000). The χ2 test for trend in proportions was used to describe usage trends for select periods...
June 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28267900/augmentation-of-hepatitis-c-virus-specific-immunity-and-sustained-virologic-response
#14
S Shrivastava, E Wilson, B Poonia, L Tang, A Osinusi, A Kohli, S Kottilil
Treatment for chronic hepatitis C virus (HCV) infection has rapidly evolved into interferon-free directly acting antiviral regimens (DAA) that result in high sustained virologic response. DAAs primarily work by suppressing HCV replication and rely less on the immune system than interferon-based therapies. However, it is unclear whether the immune system recovers with suppression of HCV replication and contributes to HCV clearance with DAA therapy. We previously demonstrated HCV clearance is associated with increased HCV-specific immunity in CHCV-GT-1-infected patients during treatment with sofosbuvir (SOF)+ribavirin (RBV)...
March 7, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28253724/predictive-value-of-serum-gamma-glutamyltransferase-levels-in-patients-with-hepatocellular-carcinoma
#15
L Sun, R Wang, F Y Gao, Y X Li, M F Geng, J L Chen, X Q Ye, X S Li, X Yang, G Wan, Z Y Yang, X B Wang
Here we assessed the predictive value of gamma-glutamyltransferase (γ-GT) for the prognosis of patients with HCC and compared the γ-GT with other prognostic factors. We retrospectively analyzed outcomes for 858 patients first diagnosed with HCC. Cox univariate and multivariate analyses receiver operating characteristic (ROC) curve were used for the study of significance of prognostic factor. A Kaplan-Meier survival analysis was performed to assess the value of γ-GT as an HCC prognostic factor in different classifications of Barcelona Clinic Liver Cancer (BCLC) or Tumor Node Metastasis (TNM) and different levels of serum alpha fetoprotein (AFP)...
March 3, 2017: Neoplasma
https://www.readbyqxmd.com/read/28211759/gamma-tocopherol-supplementation-ameliorated-hyper-inflammatory-response-during-the-early-cutaneous-wound-healing-in-alloxan-induced-diabetic-mice
#16
Jihyun Shin, Soo Jin Yang, Yunsook Lim
Delayed wound healing is one of the major diabetic complications. During wound healing process, the early inflammatory stage is important for better prognosis. One of antioxidant nutrient, gamma-tocopherol (GT) is considered to regulate inflammatory conditions. This study investigated the effect of GT supplementation on mechanism associated with inflammation, oxidative stress, and apoptosis during early cutaneous wound healing in diabetic mice. Diabetes was induced by alloxan injection in ICR mice. All mice were divided into three groups: non-diabetic control mice (CON), diabetic control mice (DMC), and diabetic mice supplemented with GT (GT)...
March 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28189063/the-nf-%C3%AE%C2%BAb-inhibitor-celastrol-attenuates-acute-hepatic-dysfunction-induced-by-cecal-ligation-and-puncture-in-rats
#17
Ghada S El-Tanbouly, Mohammed S El-Awady, Nermeen A Megahed, Hatem A Salem, Hassan A El-Kashef
Acute hepatic dysfunction associating sepsis is mediated mainly by toll-like receptor-4 (TLR-4)/nuclear factor kappa-B (NF-κB) inflammatory pathway. This study explores potential hepatoprotective effect of the NF-κB inhibitor celastrol in cecal ligation and puncture (CLP) model in rats. Protective effect of celastrol (1mg/kg, i.p., 1h before CLP) was illustrated after 24h by preventing CLP-induced hepatic histopathological changes and elevation in serum hepatic biomarkers [alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin (TB) and gamma aminotransferase (γ-GT)] without affecting mortality...
March 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28141910/the-mechanism-of-valproic-acid-induced-fanconi-syndrome-involves-mitochondrial-dysfunction-and-oxidative-stress-in-rat-kidney
#18
Reza Heidari, Faezeh Jafari, Forouzan Khodaei, Babak Shirazi Yeganeh, Hossein Niknahad
AIM: Drug-induced kidney proximal tubular injury and renal failure (Fanconi syndrome; FS) is a clinical complication. Valproic acid (VPA) is among the FS-inducing drugs. The current investigation was designed to evaluate the role of mitochondrial dysfunction and oxidative stress in VPA-induced renal injury. METHODS: Animals received VPA (250 and 500 mg/kg, i.p., 15 consecutive days). Serum biomarkers of kidney injury and markers of oxidative stress were assessed...
January 31, 2017: Nephrology
https://www.readbyqxmd.com/read/28123505/the-effect-of-resveratrol-on-hypertension-a-clinical-trial
#19
Marios Theodotou, Konstantinos Fokianos, Alexia Mouzouridou, Cornelia Konstantinou, Andrea Aristotelous, Dafni Prodromou, Asimina Chrysikou
The aim of this clinical trial was to investigate the effects of Evelor, a micronized formulation of resveratrol (RESV; 3,5,4'-trihydroxy-trans-stilbene), in patients with primary hypertension. RESV is a stilbenoid and phytoalexin produced by several plants in response to injury or attack by pathogens, such as bacteria and fungi. Patients included in the clinical trial were split into the following two groups, based on the severity of their disease: Group A (n=46), stage I hypertension [systolic blood pressure (SBP), 140-159 mmHg; diastolic blood pressure (DBP), 90-99 mmHg] and Group B (n=51), stage II hypertension (SBP, 160-179 mmHg; DBP, 100-109 mmHg)...
January 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28088581/a-stepwise-algorithm-using-an-at-a-glance-first-line-test-for-the-non-invasive-diagnosis-of-advanced-liver-fibrosis-and-cirrhosis
#20
Jérôme Boursier, Victor de Ledinghen, Vincent Leroy, Rodolphe Anty, Sven Francque, Dominique Salmon, Adrien Lannes, Sandrine Bertrais, Frederic Oberti, Isabelle Fouchard-Hubert, Paul Calès
BACKGROUND & AIMS: Chronic liver diseases (CLD) are common, and are therefore mainly managed by non-hepatologists. These physicians lack access to the best non-invasive tests of liver fibrosis, and consequently cannot accurately determine the disease severity. Referral to a hepatologist is then needed. We aimed to implement an algorithm, comprising a new first-line test usable by all physicians, for the detection of advanced liver fibrosis in all CLD patients. METHODS: Diagnostic study: 3754 CLD patients with liver biopsy were 2:1 randomized into derivation and validation sets...
June 2017: Journal of Hepatology
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