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https://www.readbyqxmd.com/read/29050354/phase-i-study-of-nivolumab-combined-with-ifn-%C3%AE-for-patients-with-advanced-melanoma
#1
Taku Fujimura, Takanori Hidaka, Yumi Kambayashi, Sadanori Furudate, Aya Kakizaki, Hisayuki Tono, Akira Tsukada, Takahiro Haga, Akira Hashimoto, Ryo Morimoto, Takuhiro Yamaguchi, Tadao Takano, Setsuya Aiba
The efficacy of nivolumab is greater than that of other anti-melanoma drugs, so nivolumab-based combined therapies that enhance anti-tumor immune responses in patients with metastatic melanoma are of great interest to dermato-oncologists. As we have previously reported, IFN-β enhances the anti-tumor immune response of anti-PD-1 antibodies against B16F10 melanoma in vivo. To explore the potential of this property of IFN-β as part of a combination therapy for the treatment of metastatic melanoma patients, we performed a phase 1 trial, using a traditional rule-based 3 + 3 design, on patients with advanced melanoma...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050285/high-dose-atorvastatin-reduces-the-risk-of-cardiovascular-events-in-patients-with-percutaneous-coronary-intervention
#2
Changqing Lu, Helei Jia, Zhentao Wang
We systematically searched in PubMed, Web of Science, Embase and China National Knowledge Infrastructure from the inception to March 31, 2017, identified relevant trials about efficacy of high-does Atorvastatin for patients with percutaneous coronary intervention. Twelve studies with the number of 2801 patients were included in the meta-analysis. Compared with control group, high-does Atorvastatin significantly reduced the risk of myocardial infarction in patients with percutaneous coronary intervention (Relative risk =0...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29049047/analysis-of-radionuclide-deposition-ratios-from-the-fukushima-daiichi-incident
#3
C M Marianno, M R Smith, K M Cook
This paper will examine deposition patterns of four radionuclides following the Fukushima-Daiichi accident. For nearly 13 d following the event, fission products were released into the environment through planned venting procedures and hydrogen explosions. To assist the government of Japan (GOJ) in the assessment of the releases, the National Nuclear Security Administration's Consequence Management Response Team (CMRT) deployed and took nearly 3 mo of measurements using airborne radiation sensors, fixed monitors, high purity germanium (HPGe) detectors, and health physics survey equipment...
October 18, 2017: Health Physics
https://www.readbyqxmd.com/read/29048188/effects-of-environmental-enrichment-on-d-amphetamine-self-administration-following-nicotine-exposure
#4
Dustin J Stairs, Sarah E Ewin, Megan M Kangiser, Markus N Pfaff
Adolescent nicotine exposure has been shown to lead to further psychostimulant use in adulthood. Previous preclinical research in rats has shown that environmental enrichment may protect against drug abuse vulnerability. The current study was designed to examine whether environmental enrichment can block the ability of adolescent nicotine exposure to increase d-amphetamine self-administration in adulthood. Male Sprague-Dawley rats were raised in either enriched conditions (ECs) or isolated conditions (ICs) and then injected with saline or nicotine (0...
October 2017: Experimental and Clinical Psychopharmacology
https://www.readbyqxmd.com/read/29047029/phase-i-study-of-the-combination-of-crizotinib-as-a-met-inhibitor-and-dasatinib-as-a-c-src-inhibitor-in-patients-with-advanced-cancer
#5
Shumei Kato, Denis L Jardim, Faye M Johnson, Vivek Subbiah, Sarina Piha-Paul, Apostolia M Tsimberidou, Gerald S Falchook, Daniel Karp, Ralph Zinner, Jennifer Wheler, Filip Janku, Siqing Fu, JoAnn Lim, Stacie Bean, Ly Nguyen, Susan Urban, Elsa Browne, Funda Meric-Bernstam, David S Hong
Background Both MET and c-SRC are important mediators of cancer progression and there is cross talk between the two molecules. Preclinical studies have demonstrated combination of MET and c-SRC inhibitors is effective in multiple cancer types. Methods We analyzed the safety and efficacy of administering a c-SRC inhibitor (dasatinib) in combination with a MET inhibitor (crizotinib) in a two-arm concurrent phase I study. Arm A consisted of crizotinib fixed at 250 mg twice per day with escalation of dasatinib...
October 19, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/29045287/yosprala%C3%A2-a-fixed-dose-combination-of-aspirin-and-omeprazole
#6
Keith T Veltri
Cardiovascular disease is the leading cause of morbidity and mortality in the United States. Patients who survive a primary cerebrovascular or cardiovascular event are at increased risk of a subsequent occurrence. Antiplatelet therapy plays an essential role for secondary prevention in individuals with stroke, transient ischemic attack, acute or chronic artery disease or peripheral arterial disease. Maintaining high risk patients on low dose aspirin therapy is a fundamental component of management. However, poor adherence, secondary to the drug's gastrointestinal side effects, has been associated with negative cardiovascular outcomes...
October 17, 2017: Cardiology in Review
https://www.readbyqxmd.com/read/29045072/cell-signaling-model-connects-vorinostat-pharmacokinetics-and-tumor-growth-response-in-multiple-myeloma-xenografts
#7
Charvi Nanavati, Donna Ruszaj, Donald E Mager
Multiple myeloma is a fatal hematological malignancy with high rates of drug resistance and relapse. Vorinostat, a histone deacetylase inhibitor, has shown promise in enhancing efficacy when combined with current myeloma therapies. In this study, temporal changes of critical proteins and cell proliferation were measured in myeloma cells exposed to vorinostat. A model linking biomarker dynamics to cell proliferation was developed that captured vorinostat effects on signal transduction and cell viability. The model structure and parameters were fixed to describe tumor dynamics in vivo, and tumor-specific growth and death rate parameters were estimated...
October 17, 2017: CPT: Pharmacometrics & Systems Pharmacology
https://www.readbyqxmd.com/read/29044968/a-prospective-randomised-placebo-controlled-study-of-the-impact-of-dutasteride-tamsulosin-combination-therapy-on-sexual-function-domains-in-sexually-active-men-with-lower-urinary-tract-symptoms-luts-secondary-to-benign-prostatic-hyperplasia-bph
#8
Claus G Roehrborn, Michael J Manyak, Juan Manuel Palacios-Moreno, Timothy H Wilson, Erik Pm Roos, Javier Cambronero Santos, Dimitrios Karanastasis, Janet Plastino, Francois Giuliano, Raymond C Rosen
OBJECTIVE: To prospectively assess the impact of the fixed-dose combination of the 5-alpha reductase inhibitor (5ARI), dutasteride 0.5 mg and the alpha-1 blocker, tamsulosin 0.4 mg (DUT-TAM FDC) therapy on sexual function domain scores in sexually active males with lower urinary tract symptoms (LUTS) secondary to benign prostatic hyperplasia (BPH), using the Men's Sexual Health Questionnaire (MSHQ). PATIENTS AND METHODS: This European and Australian double-blind, placebo-controlled, parallel-group study was conducted at 51 centres...
October 16, 2017: BJU International
https://www.readbyqxmd.com/read/29044937/selective-inhibition-of-m5-muscarinic-acetylcholine-receptors-attenuates-cocaine-self-administration-in-rats
#9
Barak W Gunter, Robert W Gould, Michael Bubser, Kevin M McGowan, Craig W Lindsley, Carrie K Jones
Cocaine use disorder (CUD) remains a debilitating health problem in the United States for which there are no Food and Drug Administration-approved treatment options. Accumulating anatomical and electrophysiological evidence indicates that the muscarinic acetylcholine receptor (mAChR) subtype 5 (M5 ) plays a critical role in the regulation of the mesolimbic dopaminergic reward circuitry, a major site of action for cocaine and other psychostimulants. In addition, M5 knockout mice exhibit reduced cocaine self-administration behaviors with no differences in sugar pellet-maintained responding relative to wild-type mice...
October 18, 2017: Addiction Biology
https://www.readbyqxmd.com/read/29043411/population-pharmacokinetics-of-trastuzumab-emtansine-in-previously-treated-patients-with-her2-positive-advanced-gastric-cancer-agc
#10
Shang-Chiung Chen, Matts Kagedal, Yuying Gao, Bei Wang, Marie-Laurence Harle-Yge, Sandhya Girish, Jin Jin, Chunze Li
PURPOSE: Ado-trastuzumab emtansine (T-DM1) is an antibody-drug conjugate comprising trastuzumab conjugated via a stable thioether linker to DM1, a highly potent cytotoxic agent. A population pharmacokinetics (PK) analysis was performed to characterize T-DM1 PK and evaluate the impact of patient characteristics on T-DM1 PK in previously treated patients with HER2-positive advanced gastric cancer (AGC). METHODS: Following T-DM1 weekly or every three weeks dosing, T-DM1 concentration measurements (n = 780) were collected from 136 patients in the GATSBY (NCT01641939) study and analyzed using nonlinear mixed effects modeling...
October 17, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/29042733/effect-of-melaleuca-alternifolia-mixed-with-tissue-conditioners-in-varying-doses-on-colonization-and-inhibition-of-candida-albicans-an-in-vitro-study
#11
Siva Kumar Vankadara, Rajendra Basavaraj Hallikerimath, Viraj Patil, Kishore Bhat, Mallikarjun Hanumantappa Doddamani
AIMS AND OBJECTIVES: The study was conducted to evaluate the Colonization & Inhibition of Candida albicans in selected commercially available denture lining materials material by mixing them with varying concentrations and doses of tea tree oil. MATERIALS AND METHODS: Five test discs of 10mm diameter and 1.5mm thickness were prepared using commercially available soft denture lining materials (Viscogel and GC-soft). Tea tree oil of varying concentrations (10%, 20%, 30%, and 40%) and doses (0...
July 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29041894/-clinical-features-of-arterial-hypertension-in-the-elderly-and-senile-age-and-the-rationale-for-using-the-combination-of-amlodipine-indapamide-retard
#12
D Z Kobalava, K E Shavarova
The proportion of elderly in the population is growing. The two-thirds of those over the age of 65 has arterial hypertension (AH). There is a significant increase in the incidence of isolated systolic hypertension with age. The relationship between increased pulse pressure, arterial stiffness and aging processes has been repeatedly confirmed in population epidemiological studies. Some evidence has been found that the treatment of AH in the elderly is accompanied by a reduction in the risk of cardiovascular diseases...
August 2017: Kardiologiia
https://www.readbyqxmd.com/read/29040827/effects-of-lorcaserin-belviq-%C3%A2-on-nicotine-and-food-maintained-responding-in-non-human-primates
#13
David S Jacobs, Claire E Barkin, Michelle R Kohut, Jack Bergman, Stephen J Kohut
BACKGROUND: Accumulating evidence suggests that the FDA-approved serotonin 5-HT2C receptor agonist, lorcaserin (Belviq(®)), may be a promising candidate for the management of substance use disorders, including nicotine addiction. The present study was conducted to determine the efficacy and selectivity of acute or continuous lorcaserin treatment for decreasing the reinforcing effects of nicotine in a primate species. METHODS: Adult rhesus monkeys (n=4) with a history of nicotine self-administration (>2years) responded for injections of nicotine (0...
October 10, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29038856/comparison-of-diagnostic-performance-between-1-millisievert-ct-enterography-and-half-standard-dose-ct-enterography-for-evaluating-active-inflammation-in-patients-with-crohn-s-disease
#14
Jung Hee Son, Seung Ho Kim, Een Young Cho, Kyeong Hwa Ryu
PURPOSE: To compare the diagnostic performance of CT enterography (CTE) images obtained at 1 millisievert (mSv) and reconstructed with filtered back projection (FBP) and adaptive statistical iterative reconstruction (ASIR) with those of half-dose CTE images for the evaluation of active inflammation in patients with Crohn's disease. METHODS: Forty-six consecutive patients (mean age 29 years; range 15-59 years) with Crohn's disease underwent CTE which comprised a standard-dose scan at the enteric phase (45 s), a half-dose scan with ASIR at the portal venous phase (70 s), and 1 mSv scans with FBP and ASIR at the delayed phase (90 s) under a fixed 120 kVp and variable mAs...
October 16, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29038273/pharmacokinetic-modelling-of-voriconazole-to-develop-an-alternative-dosing-regimen-in-children
#15
Silke Gastine, Thomas Lehrnbecher, Carsten Müller, Fedja Farowski, Peter Bader, Judith Ullmann-Moskovits, Oliver A Cornely, Andreas H Groll, Georg Hempel
Background. The pharmacokinetic variability of voriconazole in immunocompromised children is high and adequate exposure, particularly in the first days of therapy, is uncertain.Methods A population pharmacokinetic model was developed to explore VCZ exposure in plasma after alternative dosing regimens. Concentration data were obtained from a pediatric phase II study. Non-linear mixed effects modelling was used to develop the model. Monte Carlo simulations were performed to test an array of three times daily (TID) intravenous dosing regimens in children 2 to 12 years of age...
October 16, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29037057/-one-year-adherence-of-ramipril-versus-ramipril-amlodipine-fixed-dose-combination-therapy-in-hypertension
#16
Gábor Simonyi, Tamás Ferenci
INTRODUCTION: In the treatment of hypertension avoiding adverse cardiovascular complications to achieve target blood pressure is essential. The appropriate drug selection, and if necessary to change to combination therapy, patients adherence is important which may help fixed dose combination. AIM: The aim of the authors was to investigate the one year adherence of the ramipril and ramipril/amlodipine fixed dose combination in hypertensive patients. METHOD: Prescriptions database of the National Health Insurance Fund in Hungary on pharmacy-claims was analysed between October 1, 2012 and September 30, 2013...
October 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/29035215/task-driven-optimization-of-fluence-field-and-regularization-for-model-based-iterative-reconstruction-in-computed-tomography
#17
Grace J Gang, Jeffrey H Siewerdsen, J Webster Stayman
This work presents a joint optimization of dynamic fluence field modulation (FFM) and regularization in quadratic penalized-likelihood (PL) reconstruction that maximizes a taskbased imaging performance metric. We adopted a task-driven imaging framework for prospective designs of the imaging parameters. A maxi-min objective function was adopted to maximize the minimum detectability index (d0) throughout the image. The optimization algorithm alternates between FFM (represented by lowdimensional basis functions) and local regularization (including the regularization strength and directional penalty weights)...
October 16, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/29031611/dose-to-mass-for-evaluation-and-optimization-of-lung-cancer-radiation-therapy
#18
William Tyler Watkins, Joseph A Moore, Geoffrey D Hugo, Jeffrey V Siebers
PURPOSE: To evaluate potential organ at risk dose-sparing by using dose-mass-histogram (DMH) objective functions compared with dose-volume-histogram (DVH) objective functions. METHODS: Treatment plans were retrospectively optimized for 10 locally advanced non-small cell lung cancer patients based on DVH and DMH objectives. DMH-objectives were the same as DVH objectives, but with mass replacing volume. Plans were normalized to dose to 95% of the PTV volume (PTV-D95v) or mass (PTV-D95m)...
October 11, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29027240/low-dose-ct-reconstruction-using-spatially-encoded-nonlocal-penalty
#19
Kyungsang Kim, Georges El Fakhri, Quanzheng Li
PURPOSE: Computed tomography (CT) is one of the most used imaging modalities for imaging both symptomatic and asymptomatic patients. However, because of the high demand for lower radiation dose during CT scans, the reconstructed image can suffer from noise and artifacts due to the trade-off between the image quality and the radiation dose. The purpose of this paper is to improve the image quality of quarter dose images and to select the best hyperparameters using the regular dose image as ground truth...
October 2017: Medical Physics
https://www.readbyqxmd.com/read/29027153/conflicting-data-on-the-incidence-of-leukopenia-and-neutropenia-after-heated-intraperitoneal-chemotherapy-with-mitomycin-c
#20
Yael Feferman, Shanel Bhagwandin, Joseph Kim, Samantha N Aycart, Daniela Feingold, Daniel M Labow, Umut Sarpel
BACKGROUND: During heated intraperitoneal chemotherapy (HIPEC), neutropenia rates of 20 to 40% have been reported when mitomycin C (MMC) is dosed by weight or body surface area (BSA). This study investigated the authors' HIPEC experience using a fixed 40-mg dose of MMC, per consensus guidelines, and analyzed predictors for severe leukopenia and neutropenia. METHODS: Patients who underwent MMC-HIPEC from 2007 to 2016 at a single tertiary care center were retrospectively reviewed...
October 12, 2017: Annals of Surgical Oncology
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