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https://www.readbyqxmd.com/read/29351198/superoxide-dismutase-mimetic-gc4419-enhances-the-oxidation-of-pharmacological-ascorbate-and-its-anticancer-effects-in-an-h%C3%A2-o%C3%A2-dependent-manner
#1
Collin D Heer, Andrew B Davis, David B Riffe, Brett A Wagner, Kelly C Falls, Bryan G Allen, Garry R Buettner, Robert A Beardsley, Dennis P Riley, Douglas R Spitz
Lung cancer, together with head and neck cancer, accounts for more than one-fourth of cancer deaths worldwide. New, non-toxic therapeutic approaches are needed. High-dose IV vitamin C (aka, pharmacological ascorbate; P-AscH-) represents a promising adjuvant to radiochemotherapy that exerts its anti-cancer effects via metal-catalyzed oxidation to form H₂O₂. Mn(III)-porphyrins possessing superoxide dismutase (SOD) mimetic activity have been shown to increase the rate of oxidation of AscH-, enhancing the anti-tumor effects of AscH- in several cancer types...
January 19, 2018: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29351097/effect-of-epidural-infusion-bolus-delivery-rate-on-the-duration-of-labor-analgesia-a-randomized-clinical-trial
#2
Elizabeth M S Lange, Cynthia A Wong, Paul C Fitzgerald, Wilmer F Davila, Suman Rao, Robert J McCarthy, Paloma Toledo
BACKGROUND: Programmed intermittent boluses of local anesthetic have been shown to be superior to continuous infusions for maintenance of labor analgesia. High-rate epidural boluses increase delivery pressure at the catheter orifice and may improve drug distribution in the epidural space. We hypothesized that high-rate drug delivery would improve labor analgesia and reduce the requirement for provider-administered supplemental boluses for breakthrough pain. METHODS: Nulliparous women with a singleton pregnancy at a cervical dilation of less than or equal to 5 cm at request for neuraxial analgesia were eligible for this superiority-design, double-blind, randomized controlled trial...
January 19, 2018: Anesthesiology
https://www.readbyqxmd.com/read/29350190/development-and-validation-of-a-high-resolution-mapping-platform-to-aid-in-the-public-awareness-of-radiological-hazards
#3
Peter George Martin, Dean Connor, Oliver David Payton, Macarena Leal-Olloqui, Anya C Keatley, Thomas B Scott
The distribution, quantification and exposure-related effects of radiation in the environment, arising from both natural and anthropogenic sources, is of great (and growing) concern for global populations. Recent events at the Fukushima Daiichi Nuclear Plant (FDNPP) have further highlighted the importance of developing radiation mapping technologies that not only contribute to the continued assessment of contamination, but can also serve as an educational tool for members of the public regarding its behaviour and extent...
January 19, 2018: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/29349928/problem-behaviours-and-psychotropic-medication-use-in-intellectual-disability-a-multinational-cross-sectional-survey
#4
B I Perry, H F Kwok, J Mendis, K Purandare, A Wijeratne, S Manjubhashini, M Dasari, F Esan, I Gunaratna, R A Naseem, S Hoare, V Chester, A Roy, J Devapriam, R Alexander, S E Cooray
BACKGROUND: Problem behaviours (PBs) are a common cause for clinician contact in people with disorders of intellectual development and may be a common cause for the prescription of psychotropic medication. We aimed to use a large, multinational sample to define the prevalence of PBs, the associations with psychotropic medication use, and to assess for any potential 'diagnostic overshadowing' by the label of PBs in a population of people with disorders of intellectual development. METHOD: A multinational, multi-setting, cross-sectional service evaluation and baseline audit was completed...
February 2018: Journal of Intellectual Disability Research: JIDR
https://www.readbyqxmd.com/read/29349867/volumetric-modulated-arc-therapy-treatment-planning-of-thoracic-vertebral-metastases-using-stereotactic-body-radiotherapy
#5
Matthew Mallory, Damodar Pokhrel, Rajeev Badkul, Hongyu Jiang, Christopher Lominska, Fen Wang
PURPOSE/OBJECTIVES: To retrospectively evaluate the plan quality, treatment efficiency, and accuracy of volumetric modulated arc therapy (VMAT) plans for thoracic spine metastases using stereotactic body radiotherapy (SBRT). MATERIALS/METHODS: Seven patients with thoracic vertebral metastases treated with noncoplanar hybrid arcs (NCHA) (1 to 2 3D-conformal partial arcs +7 to 9 IMRT beams) were re-optimized with VMAT plans using three coplanar arcs. Tumors were located between T2 and T7 and PTVs ranged between 24...
January 19, 2018: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/29349693/anti-tumor-necrosis-factor-%C3%AE-induced-dermatological-complications-in-a-large-cohort-of-inflammatory-bowel-disease-patients
#6
P Andrade, S Lopes, R Gaspar, A Nunes, S Magina, G Macedo
BACKGROUND/AIMS: The broader use of anti-tumor necrosis factor (TNF) agents in inflammatory bowel disease (IBD) has been associated with a high rate of adverse reactions. Dermatological complications are among the most common adverse events. We assessed the incidence, risk factors, management, and outcome of anti-TNF-induced dermatological complications in a large cohort of IBD patients. METHODS: This was an observational retrospective study at a single tertiary referral center...
January 18, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29349645/the-incidence-and-the-prognostic-impact-of-acute-kidney-injury-in-acute-myocardial-infarction-patients-current-preventive-strategies
#7
Evangelos Kaltsas, George Chalikias, Dimitrios Tziakas
Acute kidney injury (AKI) is one of the most common complications during hospitalization in various clinical settings. The goal of this review was to assess the incidence of AKI in acute myocardial infarction patients (AMI), how this incidence is affected by the diverse definitions, and if there is variability in the reported rates over recent years. Additionally, we sought to appraise the impact of AKI on short- and long-term prognosis of these patients. Finally, we report on the current preventive measures as they are suggested in the current guidelines of various societies, we comment on the evidence that support them, and we review the literature for other proposed therapeutic strategies, which either failed to prove their efficacy or they are not adequately confirmed yet...
January 19, 2018: Cardiovascular Drugs and Therapy
https://www.readbyqxmd.com/read/29349598/phase-ib-study-evaluating-safety-and-clinical-activity-of-the-anti-her3-antibody-lumretuzumab-combined-with-the-anti-her2-antibody-pertuzumab-and-paclitaxel-in-her3-positive-her2-low-metastatic-breast-cancer
#8
Andreas Schneeweiss, Tjoung-Won Park-Simon, Joan Albanell, Ulrik Lassen, Javier Cortés, Veronique Dieras, Marcus May, Christoph Schindler, Frederik Marmé, Juan Miguel Cejalvo, Maria Martinez-Garcia, Iria Gonzalez, Jose Lopez-Martin, Anja Welt, Christelle Levy, Florence Joly, Francesca Michielin, Wolfgang Jacob, Céline Adessi, Annie Moisan, Georgina Meneses-Lorente, Tomas Racek, Ian James, Maurizio Ceppi, Max Hasmann, Martin Weisser, Andrés Cervantes
Purpose To investigate the safety and clinical activity of comprehensive human epidermal growth factor receptor (HER) family receptor inhibition using lumretuzumab (anti-HER3) and pertuzumab (anti-HER2) in combination with paclitaxel in patients with metastatic breast cancer (MBC). Methods This phase Ib study enrolled 35 MBC patients (first line or higher) with HER3-positive and HER2-low (immunohistochemistry 1+ to 2+ and in-situ hybridization negative) tumors. Patients received lumretuzumab (1000 mg in Cohort 1; 500 mg in Cohorts 2 and 3) plus pertuzumab (840 mg loading dose [LD] followed by 420 mg in Cohorts 1 and 2; 420 mg without LD in Cohort 3) every 3 weeks, plus paclitaxel (80 mg/m2 weekly in all cohorts)...
January 19, 2018: Investigational New Drugs
https://www.readbyqxmd.com/read/29348871/radiation-therapy-for-stage-iva-uterine-cervical-cancer-treatment-outcomes-including-prognostic-factors-and-risk-of-vesicovaginal-and-rectovaginal-fistulas
#9
Masaharu Hata, Izumi Koike, Etsuko Miyagi, Reiko Numazaki, Mikiko Asai-Sato, Hisashi Kaizu, Yuki Mukai, Shoko Takano, Eiko Ito, Madoka Sugiura, Tomio Inoue
Purpose: To evaluate the safety and efficacy of radiation therapy for stage IVA uterine cervical cancer and to identify an optimal radiation regimen. Results: Seventeen of the 28 patients developed recurrence after radiation therapy (local recurrence in 10 and distant metastasis in 12). The local control and distant metastasis-free rates at 3 years in all patients were 61% and 49%, respectively. Fourteen patients died after radiation therapy, and all but 2 died of tumor progression...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348437/first-experimental-proof-of-proton-boron-capture-therapy-pbct-to-enhance-protontherapy-effectiveness
#10
G A P Cirrone, L Manti, D Margarone, G Petringa, L Giuffrida, A Minopoli, A Picciotto, G Russo, F Cammarata, P Pisciotta, F M Perozziello, F Romano, V Marchese, G Milluzzo, V Scuderi, G Cuttone, G Korn
Protontherapy is hadrontherapy's fastest-growing modality and a pillar in the battle against cancer. Hadrontherapy's superiority lies in its inverted depth-dose profile, hence tumour-confined irradiation. Protons, however, lack distinct radiobiological advantages over photons or electrons. Higher LET (Linear Energy Transfer) 12C-ions can overcome cancer radioresistance: DNA lesion complexity increases with LET, resulting in efficient cell killing, i.e. higher Relative Biological Effectiveness (RBE). However, economic and radiobiological issues hamper 12C-ion clinical amenability...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29348101/effects-of-gamma-irradiation-on-the-physico-chemical-and-biological-properties-of-levofloxacin
#11
Saleem Raza, Yousaf Iqbal, Ihsan Ullah, Mohammad S Mubarak, Muhammad Usman Hameed, Muslim Raza
The aim of the present study was to examine the effect of gamma radiation on levofloxacin. Powder form of levofloxacin was subjected to different radiation doses (25, 50, 75, 100 and 125kGy) of Cobalt-60 source in a Gammacell-220 at a rate of 8.5 Gray/hr. The effect of radiation has been investigated with the aid of different spectroscopic techniques (UV-Vis, FT-IR), scanning electron microscopy (SEM), X-ray diffraction (XRD), and by antibacterial activities. UV data did not reveal significant changes in the structure of levofloxacin which is supported by scanning electron microscopy...
January 2018: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29348098/safety-of-fenbendazole-in-common-peafowl-pavo-cristatus
#12
Sajid Umar, Seema Abbas, Muhammad Irfan Khan, Qamarun Nisa, Muhammad Younus, Kiran Aqil, Rizwan Qayyum, Muhammad Yaqoob, Asif Ali, Muhammad Asif Yaseen, Muhammad Ali Shah
The present study was undertaken to find out the safety levels of fenbendazole in common peafowl. This bird, raised on aviaries and zoos, can be severely parasitized with Ascaridia galli (enteric worms) and Syngamus trachea (gapeworm) along with other parasitic worms. Fenbendazole is a highly effective benzimidazole-class anthelmintic in animals. The objective of this work was to provide target animal safety data in young peafowl and to demonstrate reproductive safety in adult birds. During the experimental study, diets containing fenbendazole at 0, 100, 200 and 300 ppm were fed for 21 days (three times the normal treatment duration)...
January 2018: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29347998/radiation-exposure-in-transcatheter-patent-ductus-arteriosus-closure-time-to-tune
#13
Olivier Villemain, Sophie Malekzadeh-Milani, Fidelio Sitefane, Meriem Mostefa-Kara, Younes Boudjemline
OBJECTIVES: The aims of this study were to describe radiation level at our institution during transcatheter patent ductus arteriosus occlusion and to evaluate the components contributing to radiation exposure. BACKGROUND: Transcatheter occlusion relying on X-ray imaging has become the treatment of choice for patients with patent ductus arteriosus. Interventionists now work hard to minimise radiation exposure in order to reduce risk of induced cancers. METHODS: We retrospectively reviewed all consecutive children who underwent transcatheter closure of patent ductus arteriosus from January 2012 to January 2016...
January 19, 2018: Cardiology in the Young
https://www.readbyqxmd.com/read/29347984/the-effects-of-state-rules-on-opioid-prescribing-in-indiana
#14
Morhaf Al Achkar, Shaun Grannis, Debra Revere, Palmer MacKie, Meredith Howard, Sumedha Gupta
BACKGROUND: Prescription opioids have been linked to over half of the 28,000 opioid overdose deaths in 2014. High rates of prescription opioid non-medical use have continued despite nearly all states implementing large-scale prescription drug monitoring programs (PDMP), which points to the need to examine the impact of state PDMP's on curbing inappropriate opioid prescribing. In the short-term, PDMPs have been associated with short-term prescribing declines. Yet little is known about how such policies differentially impact patient subgroups or are interpreted by prescribing providers...
January 18, 2018: BMC Health Services Research
https://www.readbyqxmd.com/read/29346193/perceptions-of-infection-risk-with-immunomodulatory-medications
#15
Rebecca Sharim, Preethi Thomas, Leny Mathew, Michael George, Misha Rosenbach
OBJECTIVES: Physicians of many specialties encounter patients treated with immunomodulatory medications and must weigh the risk of infection when making medical decisions. We explored how physician perceptions of the infection risk of immunomodulatory medications differ by specialty and level of experience. METHODS: A survey was distributed to physicians from the internal medicine, family medicine, emergency medicine, rheumatology, dermatology, and infectious disease departments at 1 tertiary care institution...
January 9, 2018: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/29346192/image-quality-overall-evaluability-and-effective-radiation-dose-of-coronary-computed-tomography-angiography-with-prospective-electrocardiographic-triggering-plus-intracycle-motion-correction-algorithm-in-patients-with-a-heart-rate-over-65-beats-per-minute
#16
Gianluca Pontone, Giuseppe Muscogiuri, Andrea Baggiano, Daniele Andreini, Andrea I Guaricci, Marco Guglielmo, Fabio Fazzari, Saima Mushtaq, Edoardo Conte, Andrea Annoni, Alberto Formenti, Elisabetta Mancini, Massimo Verdecchia, Laura Fusini, Lorenzo Bonfanti, Elisa Consiglio, Mark G Rabbat, Antonio L Bartorelli, Mauro Pepi
PURPOSE: Recently, a new intracycle motion correction algorithm (MCA) was introduced to reduce motion artifacts from heart rate (HR) in coronary computed tomography angiography (cCTA). The aim of the study was to evaluate the image quality, overall evaluability, and effective radiation dose (ED) of cCTA with prospective electrocardiographic (ECG) triggering plus MCA as compared with standard protocol with retrospective ECG triggering in patients with HR≥65 bpm. MATERIALS AND METHODS: One hundred consecutive patients (67±10 y) scheduled for cCTA with 65<HR<80 bpm were retrospectively analyzed...
January 16, 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/29345163/low-dose-hp-hmg-in-an-antagonist-protocol-for-ivf-in-ovulatory-and-anovulatory-patients-with-high-amh
#17
Negjyp Sopa, Elisabeth Clare Larsen, Anders Nyboe Andersen
Women with high-AMH levels have an increased risk of ovarian hyperstimulation syndrome (OHSS). Studies have suggested that highly purified menotropin (HP-hMG) Menopur® reduces the risk. We, therefore, studied use of low-dose (112.5 IU/day) HP-hMG in ovulatory and anovulatory patients with high AMH (>32 pmol/L). The primary endpoint was the distribution of patients with appropriate, excessive, and inadequate response (5-14, ≥15, and ≤4 oocytes). Another endpoint was frequency of OHSS. Totally 115 women were included and 78 (67...
January 18, 2018: Gynecological Endocrinology
https://www.readbyqxmd.com/read/29344955/development-of-an-advanced-two-dimensional-microdosimetric-detector-based-on-thick-gas-electron-multipliers
#18
Sahar Darvish-Molla, William V Prestwich, Soo Hyun Byun
PURPOSE: The THick Gas Electron Multiplier (THGEM) based tissue-equivalent proportional counter (TEPC) has been proven to be useful for microdosimetry due to its flexibility in varying the gaseous sensitive volume and achieving high multiplication gain. Aiming at measuring the spatial distribution of radiation dose for mixed neutron-gamma fields, an advanced two-dimensional (2-D) THGEM TEPC was designed and constructed at McMaster University which will enable us to overcome the operational limitation of the classical TEPCs, particularly for high dose rate fields...
January 18, 2018: Medical Physics
https://www.readbyqxmd.com/read/29344636/analysis-of-the-prolonged-infusion-of-dfp-10917-a-deoxycytidine-analog-as-a-therapeutic-strategy-for-the-treatment-of-human-tumor-xenografts-in-vivo
#19
Kenzo Iizuka, Chun Zhang, Kokoro Eshima, Cheng Jin, Kiyoshi Eshima, Masakazu Fukushima
2'-C-cyano-2'-deoxy-1-β-D-arabino-pentofranocyl-cytosine (DFP-10917, CNDAC) is a 2'-deoxycytidine analog with antitumor activity against various tumor cells. However, a clinically available therapeutic regimen for this compound needs to be established and its functional mechanisms in relation to the dosing schedule need to be clarified. In this study, we evaluated the antitumor activity and toxicity of DFP-10917 by varying the dose and administration schedule in human solid tumor and leukemia xenografts in vivo...
January 16, 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29343946/a-new-pen-device-for-injection-of-recombinant-human-growth-hormone-a-convenience-functionality-and-usability-evaluation-study
#20
Maritta Sauer, Carole Abbotts
Purpose: Adherence to recombinant human growth hormone (r-hGH) is critical to growth and other outcomes in patients with growth disorders, but the requirement for daily injections means that ease of use is an important factor. This study assessed the perceived ease of use and functionality of the prototype of a reusable pen injector (pen device) for r-hGH that incorporates several advanced features. Participants and methods: Semi-structured 60-minute qualitative interviews were conducted in 5 countries with 57 health care professionals (HCPs) and 30 patients with GH deficiency/caregivers administering r-hGH to patients, including children...
2018: Patient Preference and Adherence
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