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Martin Leon

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https://www.readbyqxmd.com/read/28210074/second-look-surgery-plus-hyperthermic-intraperitoneal-chemotherapy-for-patients-with-colorectal-cancer-at-high-risk-of-peritoneal-carcinomatosis-does-it-really-save-lives
#1
EDITORIAL
Delia Cortes-Guiral, Dominique Elias, Pedro Antonio Cascales-Campos, Alfredo Badía Yébenes, Ismael Guijo Castellano, Ana Isabel León Carbonero, José Ignacio Martín Valadés, Jesus Garcia-Foncillas, Damian Garcia-Olmo
The treatment of peritoneal carcinomatosis (PC) of colorectal origin with cytoreductive surgery (CRS) plus hyperthermic intraperitoneal chemotherapy (HIPEC) has a 5-year recurrence-free or cure rate of at least 16%, so it is no longer labeled as a fatal disease, and offers prolonged survival for patients with a low peritoneal carcinomatosis index. Metachronous PC of colorectal origin is so predictable that there is a model which has been used to successfully determine the individual risk of each patient. Patients at risk are clearly identified; those with the highest risk have small peritoneal nodules present in the first surgery (70% probability of developing PC), ovarian metastases (60%), perforated tumor onset or intraoperative tumor rupture (50%)...
January 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28194655/practical-time-considerations-for-optically-stimulated-luminescent-dosimetry-osld-in-total-body-irradiation
#2
Martin Butson, Mamoon Haque, Leon Smith, Ethan Butson, David Odgers, Dane Pope, Tina Gorjiana, May Whitaker, Johnny Morales, Angela Hong, Robin Hill
Total body irradiation (TBI) treatments are used to treat the whole body in preparation for hematopoietic stem cell (or bone marrow) transplantation. Our standard clinical regimen is a 12 Gy in 6 fraction, bi-daily technique using 6 MV X-rays at an extended Source-to-Surface distance (SSD) of 300 cm. Utilizing these characteristics, the beam dose rate is reduced below 7 cGy/min as is standard for TBI treatment. Dose received by the patient is monitored using optically stimulated luminescent dosimetry (OSLD)...
February 13, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/28187226/effects-of-cholecalciferol-vs-calcifediol-on-total-and-free-25-hydroxyvitamin-d-and-parathyroid-hormone
#3
Albert Shieh, Christina Ma, Rene F Chun, Sten Witzel, Brandon Rafison, Hannah Tm Contreras, Jonas Wittwer-Schegg, Leon Swinkels, Tonnie Huijs, Martin Hewison, John S Adams
No abstract text is available yet for this article.
February 10, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28168808/bioelectrical-impedance-vector-reference-values-for-assessing-body-composition-in-a-spanish-child-and-adolescent-population
#4
M P Redondo-Del-Río, M A Camina-Martín, J M Marugán-de-Miguelsanz, B de-Mateo-Silleras
OBJECTIVES: Reference values of the bioelectrical impedance vector for the Spanish child and adolescent population are needed for assessing body composition and hydration status in this population. The aim of this study is to provide reference values of the bioelectrical impedance vector in Spanish children and adolescents aged 4-18 years from Castilla y León. METHODS: This was a cross-sectional descriptive study conducted in 4401 Spanish healthy children and adolescents aged 4-18 years (2265 boys and 2136 girls)...
February 6, 2017: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/28156640/efficacy-of-rolapitant-for-prevention-of-chemotherapy-induced-nausea-and-vomiting-cinv-in-patients-with-gastrointestinal-and-colorectal-cancers
#5
Karin Jordan, Bernardo Leon Rapoport, Ian D Schnadig, Martin Chasen, Sujata Arora, Daniel Powers, Lee Steven Schwartzberg
: 222 Background: Rolapitant (VARUBI) is a selective, long-acting neurokinin-1 receptor antagonist (RA) for the prevention of CINV. Rolapitant effectively prevented CINV in phase 3 trials of patients (pts) receiving highly or moderately emetogenic chemotherapy (HEC, MEC). While MEC and HEC regimens are commonly used to treat pts with gastrointestinal and colorectal cancers (GI/CRC), very few studies have evaluated the effectiveness of a neurokinin-1 RA regimen in these pts. We assessed the incidence of CINV and efficacy of rolapitant in a subset of pts with GI/CRC...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28143509/a-protective-personal-factor-against-disability-and-dependence-in-the-elderly-an-ordinal-regression-analysis-with-nine-geographically-defined-samples-from-spain
#6
Javier Virues-Ortega, Saturio Vega, Manuel Seijo-Martinez, Pedro Saz, Fernanda Rodriguez, Angel Rodriguez-Laso, Susana Perez de Las Heras, Raimundo Mateos, Pablo Martinez-Martin, Ignacio Mahillo-Fernandez, Josep Garre-Olmo, Jordi Gascon, Francisco Jose Garcia-Garcia, Manuel Fernandez-Martinez, Felix Bermejo-Pareja, Alberto Bergareche, Julian Benito-Leon, Jesus de Pedro-Cuesta
BACKGROUND: Sense of Coherence (SOC) is defined as a tendency to perceive life experiences as comprehensible, manageable and meaningful. The construct is split in three major domains: Comprehensibility, Manageability, and Meaningfulness. SOC has been associated with successful coping strategies in the face of illness and traumatic events and is a predictor of self-reported and objective health in a variety of contexts. In the present study we aim to evaluate the association of SOC with disability and dependence in Spanish elders...
January 31, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28141702/antibiotic-therapy-in-critically-ill-patients-expert-opinion-of-the-european-society-of-anaesthesia-intensive-care-scientific-subcommittee-a-narrative-review
#7
Ignacio Martin-Loeches, Marc Leone, Krisztina Madách, Claude Martin, Sharon Einav
Antimicrobial treatment is the cornerstone of infection treatment, and the selection of appropriate antibiotic treatment for critically ill patients is challenging. Clinicians working with critically ill patients usually feel a greater obligation towards their patient than towards maintenance of the delicate ecological balance of prevalent microbiological threats and their resistance patterns. Although antibiotic overtreatment is a frequent phenomenon, patient outcomes need not be compromised when antibiotic treatment is driven by informed decision-making...
January 30, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28134624/dosage-dependent-copy-number-gains-in-e2f1-and-e2f3-drive-hepatocellular-carcinoma
#8
Lindsey N Kent, Sooin Bae, Shih-Yin Tsai, Xing Tang, Arunima Srivastava, Christopher Koivisto, Chelsea K Martin, Elisa Ridolfi, Grace C Miller, Sarah M Zorko, Emilia Plevris, Yannis Hadjiyannis, Miguel Perez, Eric Nolan, Raleigh Kladney, Bart Westendorp, Alain de Bruin, Soledad Fernandez, Thomas J Rosol, Kamal S Pohar, James M Pipas, Gustavo Leone
Disruption of the retinoblastoma (RB) tumor suppressor pathway, either through genetic mutation of upstream regulatory components or mutation of RB1 itself, is believed to be a required event in cancer. However, genetic alterations in the RB-regulated E2F family of transcription factors are infrequent, casting doubt on a direct role for E2Fs in driving cancer. In this work, a mutation analysis of human cancer revealed subtle but impactful copy number gains in E2F1 and E2F3 in hepatocellular carcinoma (HCC)...
January 30, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28079192/differential-cytotoxic-effects-of-graphene-and-graphene-oxide-on-skin-keratinocytes
#9
Marco Pelin, Laura Fusco, Verónica León, Cristina Martín, Alejandro Criado, Silvio Sosa, Ester Vázquez, Aurelia Tubaro, Maurizio Prato
Impressive properties make graphene-based materials (GBMs) promising tools for nanoelectronics and biomedicine. However, safety concerns need to be cleared before mass production of GBMs starts. As skin, together with lungs, displays the highest exposure to GBMs, it is of fundamental importance to understand what happens when GBMs get in contact with skin cells. The present study was carried out on HaCaT keratinocytes, an in vitro model of skin toxicity, on which the effects of four GBMs were evaluated: a few layer graphene, prepared by ball-milling treatment (FLG), and three samples of graphene oxide (GOs, a research-grade GO1, and two commercial GOs, GO2 and GO3)...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28062583/martin-leon-md
#10
Mark Nicholls
No abstract text is available yet for this article.
December 14, 2016: European Heart Journal
https://www.readbyqxmd.com/read/28049490/mobilization-of-hematopoietic-stem-cells-with-the-novel-cxcr4-antagonist-pol6326-balixafortide-in-healthy-volunteers-results-of-a-dose-escalation-trial
#11
Darja Karpova, Susanne Bräuninger, Eliza Wiercinska, Ariane Krämer, Belinda Stock, Jochen Graff, Hans Martin, Achim Wach, Christophe Escot, Garry Douglas, Barbara Romagnoli, Eric Chevalier, Klaus Dembowski, Leon Hooftman, Halvard Bonig
BACKGROUND: Certain disadvantages of the standard hematopoietic stem and progenitor cell (HSPC) mobilizing agent G-CSF fuel the quest for alternatives. We herein report results of a Phase I dose escalation trial comparing mobilization with a peptidic CXCR4 antagonist POL6326 (balixafortide) vs. G-CSF. METHODS: Healthy male volunteer donors with a documented average mobilization response to G-CSF received, following ≥6 weeks wash-out, a 1-2 h infusion of 500-2500 µg/kg of balixafortide...
January 3, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28040180/characterization-of-microbial-population-of-breba-and-main-crops-ficus-carica-during-cold-storage-influence-of-passive-modified-atmospheres-map-and-antimicrobial-extract-application
#12
María Del Carmen Villalobos, Manuel Joaquín Serradilla, Alberto Martín, Alejandro Hernández-León, Santiago Ruíz-Moyano, María de Guía Córdoba
The purpose of this work was to study the changes of bacterial and fungal population of breba fruits such as 'Banane' and 'San Antonio' as well as 'Cuello Dama Negro', 'Cuello Dama Blanco' and 'San Antonio' fig cultivars stored in passive modified atmospheres (MAP) by the use of three different microperforated films (M10 with 16 holes; M30 with five holes and M50 with three holes). Moreover the effects of the application of aqueous soy polyphenolic antimicrobial extract (APE), alone or combined with MAP, were also studied for 'Cuello Dama Negro' and 'Cuello Dama Blanco' fig cultivars...
May 2017: Food Microbiology
https://www.readbyqxmd.com/read/28039322/injuries-to-the-aorta-aortic-annulus-and-left-ventricle-during-transcatheter-aortic-valve-replacement-management-and-outcomes
#13
Nathaniel B Langer, Nadira B Hamid, Tamim M Nazif, Omar K Khalique, Torsten P Vahl, Jonathon White, Juan Terre, Ramin Hastings, Diana Leung, Rebecca T Hahn, Martin Leon, Susheel Kodali, Isaac George
The experience with transcatheter aortic valve replacement is increasing worldwide; however, the incidence of potentially catastrophic cardiac or aortic complications has not decreased. In most cases, significant injuries to the aorta, aortic valve annulus, and left ventricle require open surgical repair. However, the transcatheter aortic valve replacement patient presents a unique challenge as many patients are at high or prohibitive surgical risk and, therefore, an open surgical procedure may not be feasible or appropriate...
January 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28030655/percutaneous-coronary-intervention-with-bioresorbable-scaffolds-in-a-young-child
#14
Tamim M Nazif, Sanjog Kalra, Ziad A Ali, Dimitrios Karmpaliotis, Mariel E Turner, Thomas J Starc, Yang Cao, Charles C Marboe, Michael B Collins, Martin B Leon, Ajay J Kirtane
Importance: Although much less frequent than in adults, coronary artery disease requiring revascularization may develop in children because of homozygous familial hypercholesterolemia or other underlying conditions. Percutaneous coronary intervention (PCI) with a bioresorbable scaffold (BRS) may have advantages over metallic coronary stents in this population. Objective: To present a case of the successful treatment of unstable, multivessel coronary artery disease in a child with PCI with BRS implantation...
December 28, 2016: JAMA Cardiology
https://www.readbyqxmd.com/read/28017714/long-term-valve-performance-of-tavr-and-savr-a-report-from-the-partner-i-trial
#15
Melissa A Daubert, Neil J Weissman, Rebecca T Hahn, Philippe Pibarot, Rupa Parvataneni, Michael J Mack, Lars G Svensson, Deepika Gopal, Samir Kapadia, Robert J Siegel, Susheel K Kodali, Wilson Y Szeto, Raj Makkar, Martin B Leon, Pamela S Douglas
OBJECTIVES: The aim of this study was to evaluate the long-term performance of transcatheter aortic valve replacement (TAVR) and surgical aortic valve replacement (SAVR) through longitudinal echocardiographic analysis. BACKGROUND: The long-term performance of the SAPIEN TAVR is not well-described. Therefore, we examined the hemodynamic and valvular profile of the SAPIEN TAVR over 5 years. METHODS: All patients receiving TAVR or SAVR with first post-implant (FPI) and 5-year echoes were analyzed for aortic valve (AV) peak velocity, AV mean gradient, AV area, peak left ventricular (LV) outflow tract and in-stent velocities, Doppler velocity index, aortic regurgitation (AR), LV mass index, stroke volume index, and cardiac index...
December 8, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28013412/the-inhibition-of-voltage-gated-h-channel-hvcn1-induces-acidification-of-leukemic-jurkat-t-cells-promoting-cell-death-by-apoptosis
#16
Agustín Asuaje, Paola Smaldini, Pedro Martín, Nicolás Enrique, Alejandro Orlowski, Ernesto A Aiello, Carlos Gonzalez León, Guillermo Docena, Verónica Milesi
Cellular energetic deregulation is widely known to produce an overproduction of acidic species in cancer cells. This acid overload must be counterbalanced with a high rate of H(+) extrusion to maintain cell viability. In this sense, many H(+) transporters have been reported to be crucial for cell survival and proposed as antineoplastic target. By the way, voltage-gated proton channels (Hv1) mediate highly selective H(+) outward currents, capable to compensate acid burden in brief periods of time. This structure is canonically described acting as NADPH oxidase counterbalance in reactive oxygen species production...
December 24, 2016: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28012867/chronic-oral-administration-of-mpep-an-antagonist-of-mglu5-receptor-during-gestation-and-lactation-alters-mglu5-and-a2a-receptors-in-maternal-and-neonatal-brain
#17
Antonio López-Zapata, David Agustín León-Navarro, María Crespo, José Luis Albasanz, Mairena Martín
Antidepressant and anxiolytic drugs are widely consumed even by pregnant and lactating women. The metabotropic glutamate receptor 5 (mGlu5) antagonist 2-methyl-6-(phenylethynyl)-pyridine (MPEP) exerts antidepressant- and anxiolytic-like actions. Given that treatment for anxiety and depression use to be prolonged in time, it is conceivable a possible modulation of metabotropic glutamate receptors (mGlu receptors) after prolonged MPEP exposure, which could also modify adenosine A2A receptors (A2AR) since functional cross-talk between them has been reported...
March 6, 2017: Neuroscience
https://www.readbyqxmd.com/read/27994377/risk-factors-for-early-invasive-fungal-disease-in-critically-ill-patients
#18
Gurmeet Singh, Ceva Wicaksono Pitoyo, Dita Aditianingsih, Cleopas Martin Rumende
BACKGROUND: The incidence of invasive fungal disease (IFD) is increasing worldwide in the past two to three decades. Critically ill patients in Intensive Care Units are more vulnerable to fungal infection. Early detection and treatment are important to decrease morbidity and mortality in critically ill patients. OBJECTIVE: Our study aimed to assess factors associated with early IFD in critically ill patients. MATERIALS AND METHODS: This prospective cohort study was conducted in critically ill patients, from March to September 2015...
November 2016: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/27993081/contribution-of-persistent-organic-pollutant-exposure-to-the-adipose-tissue-oxidative-microenvironment-in-an-adult-cohort-a-multipollutant-approach
#19
Francisco Artacho-Cordón, Josefa León, José M Sáenz, Mariana F Fernández, Piedad Martin-Olmedo, Nicolás Olea, Juan P Arrebola
Despite growing in vitro and in vivo evidence of the putative role of persistent organic pollutants (POPs) in the induction of oxidative damage in cell structures, this issue has been poorly addressed from an epidemiologic perspective. The aim of this study was to explore associations between adipose tissue POP concentrations and the in situ oxidative microenvironment. A cross-sectional study was conducted in a subsample (n = 271) of a previously established cohort, quantifying levels of eight POPs and four groups of oxidative stress biomarkers in adipose tissue...
December 20, 2016: Environmental Science & Technology
https://www.readbyqxmd.com/read/27989846/cortical-areas-involved-in-behavioral-expression-of-external-pallidum-dysfunctions-a-pet-imaging-study-in-non-human-primates
#20
Laurent Galineau, Aurélie Kas, Yulia Worbe, Marion Chaigneau, Anne-Sophie Herard, Martine Guillermier, Thierry Delzescaux, Jean Féger, Philippe Hantraye, Léon Tremblay
The external pallidum (GPe) is a component of the indirect pathway centrally placed in the basal ganglia. Studies already demonstrated that the pharmacological disinhibition of the sensorimotor, associative, and limbic GPe produced dyskinesia, hyperactivity, and compulsive behaviors, respectively. The aim of this study was to investigate the cortical regions altered by the disinhibition of each GPe functional territory. Thus, 5 macaques were injected with bicuculline in sensorimotor, associative, and limbic sites of the GPe producing dyskinesia, hyperactivity, and compulsive behaviors, and underwent in vivo positron tomography with (18)F-2-fluoro-2-deoxy-D-glucose to identify cortical dysfunctions related to GPe disinhibition...
October 28, 2016: NeuroImage
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