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https://www.readbyqxmd.com/read/28527736/the-effects-of-non-invasive-radiofrequency-electric-field-hyperthermia-on-biotransport-and-biodistribution-of-fluorescent-60-fullerene-derivative-in-a-murine-orthotopic-model-of-breast-adenocarcinoma
#1
Norman A Lapin, Martyna Krzykawska-Serda, Sean Dilliard, Yuri Mackeyev, Maciej Serda, Lon J Wilson, Steven A Curley, Stuart J Corr
The aim of this study is to understand the combined and differential biokinetic effects of radiofrequency (RF) electric-field hyperthermia as an adjunctive therapy to [60]fullerene nanoparticle-based drug delivery systems in targeting the micro-vasculature and micro-environments of breast cancer tumors. Intravital microscopy (IVM) is an ideal tool to provide the spatial and temporal resolution needed for quantification in this investigation. The water-soluble and fluorescent [60]fullerene derivative (C60-serPF) was designed to be an amphiphilic nanostructure, which is able to cross several biological membranes and accumulate in tumor tissues by passing through abnormally leaky tumor blood vessels...
May 17, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28525622/dietary-therapy-with-the-crohn-s-disease-exclusion-diet-is-a-successful-strategy-for-induction-of-remission-in-children-and-adults-failing-biological-therapy
#2
Rotem Sigall Boneh, Chen Sarbagili-Shabat, Heinit Yanai, Irit Chermesh, Sivan Ben Avraham, Mona Boaz, Arie Levine
Background: Loss of response (LoR) to biologics in Crohn's disease (CD) is a significant clinical problem. Dietary therapy as a treatment strategy in this setting has not been previously reported. We report the use of dietary strategies using enteral nutrition coupled with the Crohn's Disease Exclusion Diet (CDED) for LoR to infliximab or adalimumab as a single center experience. Methods: Patients with LoR to a biologic despite dose escalation or combination therapy were treated with partial enteral nutrition (PEN) by a polymeric formula and the CDED for 12 weeks...
May 19, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28521262/rhodium-catalyzed-c-h-bond-activation-for-the-synthesis-of-quinonoid-compounds-significant-anti-trypanosoma-cruzi-activities-and-electrochemical-studies-of-functionalized-quinones
#3
Guilherme A M Jardim, Thaissa L Silva, Marilia O F Goulart, Carlos A de Simone, Juliana M C Barbosa, Kelly Salomão, Solange L de Castro, John F Bower, Eufrânio N da Silva Júnior
Thirty four halogen and selenium-containing quinones, synthesized by rhodium-catalyzed C-H bond activation and palladium-catalyzed cross-coupling reactions, were evaluated against bloodstream trypomastigotes of T. cruzi. We have identified fifteen compounds with IC50/24 h values of less than 2 μM. Electrochemical studies on A-ring functionalized naphthoquinones were also performed aiming to correlate redox properties with trypanocidal activity. For instance, (E)-5-styryl-1,4-naphthoquinone 59 and 5,8-diiodo-1,4-naphthoquinone 3, which are around fifty fold more active than the standard drug benznidazole, are potential derivatives for further investigation...
May 4, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28520674/relationship-stability-after-traumatic-brain-injury-among-veterans-and-service-members-a-va-tbi-model-systems-study
#4
Lillian Flores Stevens, Yanna Lapis, Xinyu Tang, Angelle M Sander, Laura E Dreer, Flora M Hammond, Jeffrey S Kreutzer, Therese M OʼNeil-Pirozzi, Risa Nakase-Richardson
OBJECTIVE: To explore stability of relationships and predictors of change in relationship status 2 years following TBI/polytrauma. SETTING: Five Department of Veterans Affairs Polytrauma Rehabilitation Centers (VA PRCs). PARTICIPANTS: A total of 357 active duty service members and Veterans enrolled in the Veterans Affairs Polytrauma Rehabilitation Centers Traumatic Brain Injury Model Systems database with complete marital status information at 2 years postinjury...
May 17, 2017: Journal of Head Trauma Rehabilitation
https://www.readbyqxmd.com/read/28515059/antibiotic-stability-over-six-weeks-in-aqueous-solution-at-body-temperature-with-and-without-heat-treatment-that-mimics-the-curing-of-bone-cement
#5
E Samara, T F Moriarty, L A Decosterd, R G Richards, E Gautier, P Wahl
OBJECTIVES: Thermal stability is a key property in determining the suitability of an antibiotic agent for local application in the treatment of orthopaedic infections. Despite the fact that long-term therapy is a stated goal of novel local delivery carriers, data describing thermal stability over a long period are scarce, and studies that avoid interference from specific carrier materials are absent from the orthopaedic literature. METHODS: In this study, a total of 38 frequently used antibiotic agents were maintained at 37°C in saline solution, and degradation and antibacterial activity assessed over six weeks...
May 2017: Bone & Joint Research
https://www.readbyqxmd.com/read/28514312/treatment-inferred-from-mutations-identified-using-massive-parallel-sequencing-leads-to-clinical-benefit-in-some-heavily-pretreated-cancer-patients
#6
Aviad Zick, Tamar Peretz, Michal Lotem, Ayala Hubert, Daniela Katz, Mark Temper, Yakir Rottenberg, Beatrice Uziely, Hovav Nechushtan, Amichai Meirovitz, Amir Sonnenblick, Eli Sapir, David Edelman, Yael Goldberg, Alexander Lossos, Shai Rosenberg, Iris Fried, Ruth Finklstein, Eli Pikarsky, Hanoch Goldshmidt
Molecular portraits of numerous tumors have flooded oncologists with vast amounts of data. In parallel, effective inhibitors of central pathways have shown great clinical benefit. Together, this promises potential clinical benefits to otherwise end-stage cancer patients. Here, we report a clinical service offering mutation detection of archived samples using the ion Ampliseq cancer panel coupled with clinical consultation.A multidisciplinary think tank consisting of oncologists, molecular-biologists, genetic counselors, and pathologists discussed 67 heavily pretreated, advanced cancer patient cases, taking into account mutations identified using ion Ampliseq cancer panel, medical history, and relevant literature...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28512009/combining-d-cycloserine-with-appetitive-extinction-learning-modulates-amygdala-activity-during-recall
#7
Claudia Ebrahimi, Stefan P Koch, Eva Friedel, Ilsoray Crespo, Thomas Fydrich, Andreas Ströhle, Andreas Heinz, Florian Schlagenhauf
Appetitive Pavlovian conditioning plays a crucial role in the pathogenesis of drug addiction and conditioned reward cues can trigger craving and relapse even after long phases of abstinence. Promising preclinical work showed that the NMDA-receptor partial agonist D-cycloserine (DCS) facilitates Pavlovian extinction learning of fear and drug cues. Furthermore, DCS-augmented exposure therapy seems to be beneficial in various anxiety disorders, while the supposed working mechanism of DCS during human appetitive or aversive extinction learning is still not confirmed...
May 13, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28511989/biased-agonism-antagonism-at-the-angii-at1-receptor-implications-for-adrenal-aldosterone-production-and-cardiovascular-therapy
#8
REVIEW
Jennifer Maning, Shmuel Negussie, Michelle A Clark, Anastasios Lymperopoulos
Many of the effects of angiotensin II (AngII), including adrenocortical aldosterone release, are mediated by the AngII type 1 receptor (AT1R), a receptor with essential roles in cardiovascular homeostasis. AT1R belongs to the G protein-coupled receptor (GPCR) superfamily, mainly coupling to the Gq/11 type of G proteins. However, it also signals through βarrestins, oftentimes in parallel to eliciting G protein-dependent signaling. This has spurred infinite possibilities for cardiovascular pharmacology, since various beneficial effects are purportedly exerted by AT1R via βarrestins, unlike AT1R-induced G protein-mediated pathways that usually result in damaging cardiovascular effects, including hypertension and aldosterone elevation...
May 13, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28509691/development-of-glucose-responsive-smart-insulin-systems
#9
Nischay K Rege, Nelson F B Phillips, Michael A Weiss
PURPOSE OF REVIEW: The complexity of modern insulin-based therapy for type I and type II diabetes mellitus and the risks associated with excursions in blood-glucose concentration (hyperglycemia and hypoglycemia) have motivated the development of 'smart insulin' technologies (glucose-responsive insulin, GRI). Such analogs or delivery systems are entities that provide insulin activity proportional to the glycemic state of the patient without external monitoring by the patient or healthcare provider...
May 15, 2017: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/28507525/modernizing-relationship-therapy-through-social-thermoregulation-theory-evidence-hypotheses-and-explorations
#10
Hans IJzerman, Emma C E Heine, Saskia K Nagel, Tila M Pronk
In the present article the authors propose to modernize relationship therapy by integrating novel sensor and actuator technologies that can help optimize people's thermoregulation, especially as they pertain to social contexts. Specifically, they propose to integrate Social Thermoregulation Theory (IJzerman et al., 2015a; IJzerman and Hogerzeil, 2017) into Emotionally Focused Therapy by first doing exploratory research during couples' therapy, followed by Randomized Clinical Trials (RCTs). The authors thus suggest crafting a Social Thermoregulation Therapy (STT) as enhancement to existing relationship therapies...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28506582/dual-functional-small-molecule-fluorescent-probes-for-image-guided-estrogen-receptor-specific-targeting-coupled-potent-antiproliferative-potency-for-breast-cancer-therapy
#11
Lu Yang, Zhiye Hu, Junjie Luo, Chu Tang, Silong Zhang, Wentao Ning, Chune Dong, Jian Huang, Xianjun Liu, Hai-Bing Zhou
A strategy by integrating biological imaging into early stages of the drug discovery process can improve our understanding of drug activity during preclinical and clinical study. In this article, we designed and synthesized coumarin-based nonsteroidal type fluorescence ligands for drug-target binding imaging. Among these synthesized compounds, 3e, 3f and 3h showed potent ER binding affinity and 3e (IC50=0.012μM) exhibited excellent ERα antagonistic activity, its antiproliferative potency in breast cancer MCF-7 cells is equipotent to the approved drug tamoxifen...
May 4, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28503981/platelet-reactivity-influences-clot-structure-as-assessed-by-fractal-analysis-of-viscoelastic-properties
#12
Rebecca B Knowles, Matthew J Lawrence, Plinio M Ferreira, Melissa A Hayman, Lindsay A D'Silva, Sophie N Stanford, Ahmed Sabra, Arthur T Tucker, Karl M Hawkins, Phylip R Williams, Timothy D Warner, Phillip A Evans
Despite the interwoven nature of platelet activation and the coagulation system in thrombosis, few studies relate both analysis of protein and cellular parts of coagulation in the same population. In the present study, we use matched ex vivo samples to determine the influences of standard antiplatelet therapies on platelet function and use advanced rheological analyses to assess clot formation. Healthy volunteers were recruited following fully informed consent then treated for 7 days with single antiplatelet therapy of aspirin (75 mg) or prasugrel (10 mg) or with dual antiplatelet therapy (DAPT) using aspirin (75 mg) plus prasugrel (10 mg) or aspirin (75 mg) plus ticagrelor (90 mg)...
May 15, 2017: Platelets
https://www.readbyqxmd.com/read/28502717/preferential-accumulation-of-gold-nanorods-into-human-skin-hair-follicles-effect-of-nanoparticle-surface-chemistry
#13
Nouf N Mahmoud, Alaaldin M Alkilany, Dörthe Dietrich, Uwe Karst, Amal G Al-Bakri, Enam A Khalil
HYPOTHESIS: Gold nanoparticles (GNP) are considered an ideal model to help understanding the nano-skin interface. The surface functionality of gold nanorods (GNR) is expected to influence the uptake of nanoparticles into specific targets of skin such as hair follicles or dermis. Hence, it should be possible to modify the surface chemistry of GNP to achieve more targeted and safe skin therapy. EXPERIMENTS: GNR functionalized with various surface ligands (neutral, anionic, cationic, and hydrophobic) were evaluated for their accumulation into hair follicles of human skin sheets using ex-vivo setup...
May 6, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28502212/-trends-in-antidiabetic-treatment-prescribed-for-patients-with-type-2-diabetes-in-hungary-between-2001-and-2014-results-from-the-database-analysis-of-the-national-health-insurance-fund
#14
György Jermendy, Zoltán Kiss, György Rokszin, Zsolt Abonyi-Tóth, István Wittmann, Péter Kempler
In the last couple of years, significant developments in antidiabetic treatment have influenced the pharmacological treatment of type 2 diabetes mellitus (T2DM). The aim of this study was to analyze the changes in prescribing patterns of glucose-lowering drugs for T2DM patients in Hungary between 2001 and 2014. The number of patients with newly diagnosed T2DM decreased from 75,700 (2001) to 33,700 (2014), while prevalent T2DM cases continuously increased and plateaued in 2014 with a number of registered patients of 727,000...
May 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28500219/mechanisms-of-enhanced-phrenic-long-term-facilitation-in-sod1-g93a-rats
#15
Nicole L Nichols, Irawan Satriotomo, Latoya L Allen, Ashley M Grebe, Gordon S Mitchell
Amyotrophic lateral sclerosis (ALS) is a degenerative motor neuron disease, causing muscle paralysis and death from respiratory failure. Effective means to preserve/restore ventilation are necessary to increase the quality and duration of life in ALS patients. At disease end-stage in a rat ALS model (SOD1(G93A)), acute intermittent hypoxia (AIH) restores phrenic nerve activity to normal levels via enhanced phrenic long-term facilitation (pLTF). Mechanisms enhancing pLTF in end-stage SOD1(G93A) rats are not known...
May 12, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28500176/mitral-aortic-flow-reversal-in-cardiac-resynchronization-therapy-coupling-with-ejection-and-impact-of-variations-in-atrioventricular-delay
#16
Daniel Rodríguez Muñoz, José Luis Moya Mur, Javier Moreno, Covadonga Fernández-Golfín, Eduardo Franco, Bostjan Berlot, Juan Manuel Monteagudo, Roberto Matía Francés, Antonio Hernández Madrid, José Luis Zamorano
BACKGROUND: Flow entering the left ventricle is reversed toward the outflow tract through rotating reversal flow around the mitral valve. This was thought to facilitate early ejection, but had not been proved to date. We hypothesized that perfect coupling between reversal and ejection flow would occur at optimal atrioventricular delay (AVD), contributing to its hemodynamic superiority, and evaluated its applicability for AVD optimization. METHODS AND RESULTS: Forty consecutive patients with cardiac resynchronization therapy underwent intracardiac flow analysis and AVD optimization...
May 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28500039/selected-probiotic-lactobacilli-have-the-capacity-to-hydrolyze-gluten-peptides-during-simulated-gastro-intestinal-digestion
#17
Ruggiero Francavilla, Maria De Angelis, Carlo Giuseppe Rizzello, Noemi Cavallo, Fabio Dal Bello, Marco Gobbetti
The aim of this study was to demonstrate the capacity of probiotic lactobacilli to hydrolyze immunogenic gluten peptides. Eighteen commercial strains of probiotic lactobacilli with highly variable peptidase activity (i.e., aminopeptidase N, iminopeptidase, prolyl endopeptidyl peptidase, tripeptidase, prolidase, prolinase and dipeptidase), including towards Pro-rich peptides, were tested in this study. Ten probiotic strains were selected based on their specific enzyme activity. When pooled, these ten strains provide the peptidase portfolio that is required to completely degrade the immunogenic gluten peptides involved in celiac disease (CD)...
May 12, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28496447/inosine-released-from-dying-or-dead-cells-stimulates-cell-proliferation-via-adenosine-receptors
#18
Jin Chen, Ricardo A Chaurio, Christian Maueröder, Anja Derer, Manfred Rauh, Andriy Kost, Yi Liu, Xianming Mo, Axel Hueber, Rostyslav Bilyy, Martin Herrmann, Yi Zhao, Luis E Muñoz
INTRODUCTION: Many antitumor therapies induce apoptotic cell death in order to cause tumor regression. Paradoxically, apoptotic cells are also known to promote wound healing, cell proliferation, and tumor cell repopulation in multicellular organisms. We aimed to characterize the nature of the regenerative signals concentrated in the micromilieu of dead and dying cells. METHODS: Cultures of viable melanoma B16F10 cells, mouse fibroblasts, and primary human fibroblast-like synoviocytes (FLS) in the presence of dead and dying cells, their supernatants (SNs), or purified agonists and antagonists were used to evaluate the stimulation of proliferation...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28494415/studies-on-curative-efficacy-of-monoterpene-eugenol-on-anti-leukemic-drug-arsenic-trioxide-induced-cardiotoxicity
#19
Prakash Binu, Nellikunnath Priya, Surendran Abhilash, Radhakrishnan Chandraprabha Vineetha, Raveendran Harikumaran Nair
BACKGROUND: Arsenic trioxide (As2O3) is emerging as a frontline agent for the treatment of acute promyelocytic leukemia (APL) but the therapeutic application is limited by its toxicity. QT prolongation, torsades de pointes and sudden cardiac death have been implicated in the As2O3 therapy. So eugenol is a monoterpene compound is well known for its antioxidant properties and protective effect on the cardiovascular system. OBJECTIVE: In this study, the cardioprotective effect of eugenol on cardiac electrical conductivity, tissue electrolytes, myocardial markers, antioxidant system, lipid peroxidation and nitric oxide production was investigated in male Wistar rats treated with arsenic trioxide...
May 7, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28493473/dysregulation-of-mitochondrial-bioenergetics-and-quality-control-by-hiv-1-tat-in-cardiomyocytes
#20
Farzaneh G Tahrir, Santhanam Shanmughapriya, Taha Mohseni Ahooyi, Tijana Knezevic, Manish K Gupta, Christopher D Kontos, Joseph M McClung, Muniswamy Madesh, Jennifer Gordon, Arthur M Feldman, Joseph Y Cheung, Kamel Khalili
Cardiovascular disease remains a leading cause of morbidity and mortality in HIV positive patients, even in those whose viral loads are well controlled with antiretroviral therapy. However, the underlying molecular events responsible for the development of cardiac disease in the setting of HIV remain unknown. The HIV encoded Tat protein plays a critical role in the activation of HIV gene expression and profoundly impacts homeostasis in both HIV infected cells and uninfected cells that have taken up released Tat via a bystander effect...
May 11, 2017: Journal of Cellular Physiology
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