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https://www.readbyqxmd.com/read/28429452/real-world-experience-of-the-feasibility-and-tolerability-of-the-2-1-dosing-schedule-with-sunitinib-in-the-treatment-of-patients-with-advanced-renal-cell-carcinoma-in-australia
#1
Megan Crumbaker, Alexander Guminski, Howard Gurney, Dhanusha Sabanathan, Shirley Wong, Nick Pavlakis
AIM: Sunitinib is a first-line treatment option for metastatic renal cell carcinoma (mRCC) funded by the Australian Pharmaceutical Benefits Scheme. Toxicities are common with the standard schedule leading to alternative dosing schedules to be suggested. We reviewed Australian treatment practices to evaluate the safety and outcomes of patients on a 2 weeks on, 1 week off treatment schedule (2/1). METHODS: We performed a retrospective review of 63 patients with mRCC treated with first-line sunitinib on a 2/1 schedule at four Australian centers...
April 21, 2017: Asia-Pacific Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28426558/combat-surgical-workload-in-oif-oef-the-definitive-analysis
#2
Caryn A Turner, Zsolt T Stockinger, Jennifer M Gurney
BACKGROUND: Relatively few publications exist on surgical workload in the deployed military setting. This study analyses U.S. Military combat surgical workload in Iraq and Afghanistan to gain a more thorough understanding of surgical training gaps and personnel requirements. METHODS: A retrospective analysis of the Department of Defense Trauma Registry (DoDTR) was performed for all Role 2 (R2) and Role 3 (R3) Military Treatment Facilities (MTFs), from January 2001 to May 2016...
April 20, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28419466/the-2016-revised-world-health-organization-definition-of-myelodysplastic-syndrome-with-isolated-del-5q-prognostic-implications-of-single-versus-double-cytogenetic-abnormalities
#3
Mark Gurney, Mrinal M Patnaik, Curtis A Hanson, Mark R Litzow, Aref Al-Kali, Rhett P Ketterling, Ayalew Tefferi, Naseema Gangat
The definition of the myelodysplastic syndrome (MDS) subtype 'MDS with isolated del(5q)' was expanded to include cases with one additional non-chromosome 7 based cytogenetic abnormality in the 2016 revised World Health Organization classification. This study applied the revised definition to a large primary MDS cohort, and evaluated the prognostic impact of the additional cytogenetic abnormality. Seventy-two of 1067 patients (7%) met the 'MDS with isolated del(5q)' criteria, 11 (1%) of whom had an additional cytogenetic abnormality...
April 17, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28410865/treatment-beyond-progression-in-patients-with-advanced-renal-cell-carcinoma-treated-with-nivolumab-in-checkmate-025
#4
Bernard Escudier, Robert J Motzer, Padmanee Sharma, John Wagstaff, Elizabeth R Plimack, Hans J Hammers, Frede Donskov, Howard Gurney, Jeffrey A Sosman, Pawel G Zalewski, Ulrika Harmenberg, David F McDermott, Toni K Choueiri, Martin Richardet, Yoshihiko Tomita, Alain Ravaud, Justin Doan, Huanyu Zhao, Helene Hardy, Saby George
BACKGROUND: Response patterns to nivolumab differ from those seen with other approved targeted therapies. OBJECTIVE: To investigate the efficacy of nivolumab in previously treated patients with advanced renal cell carcinoma who were treated beyond (Response Evaluation Criteria In Solid Tumors) RECIST progression. DESIGN, SETTING, AND PARTICIPANTS: This was a subgroup analysis of patients treated with nivolumab in the phase 3 CheckMate 025 study...
April 12, 2017: European Urology
https://www.readbyqxmd.com/read/28375667/addition-of-mri-for-ct-based-pancreatic-tumor-delineation-a-feasibility-study
#5
Oliver J Gurney-Champion, Eva Versteijne, Astrid van der Horst, Eelco Lens, Heidi Rütten, Hanne D Heerkens, Gabriel M R M Paardekooper, Maaike Berbee, Coen R N Rasch, Jaap Stoker, Marc R W Engelbrecht, Marcel van Herk, Aart J Nederveen, Remy Klaassen, Hanneke W M van Laarhoven, Geertjan van Tienhoven, Arjan Bel
PURPOSE: To assess the effect of additional magnetic resonance imaging (MRI) alongside the planning computed tomography (CT) scan on target volume delineation in pancreatic cancer patients. MATERIAL AND METHODS: Eight observers (radiation oncologists) from six institutions delineated the gross tumor volume (GTV) on 3DCT, and internal GTV (iGTV) on 4DCT of four pancreatic cancer patients, while MRI was available in a second window (CT + MRI). Variations in volume, generalized conformity index (CIgen), and overall observer variation, expressed as standard deviation (SD) of the distances between delineated surfaces, were analyzed...
April 4, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28336036/physical-function-and-physical-activity-in-obese-adults-after-total-knee-arthroplasty
#6
REVIEW
Webb A Smith, Audrey Zucker-Levin, William M Mihalko, Michael Williams, Mark Loftin, James G Gurney
Obese patients are more likely to have osteoarthritis and total knee arthroplasty (TKA). This investigation sought to evaluate physical function, activity level, and quality of life (QOL). Obese participants near 1-year postsurgical follow-up appointment were recruited. Evaluation included QOL and activity questionnaire, medical histories, anthropometrics, strength, and aerobic capacity. Sixty participants completed assessments. Obese TKA patients have physical performance limitations and low physical activity levels 1 year after surgery and completion of postoperative rehabilitation...
April 2017: Orthopedic Clinics of North America
https://www.readbyqxmd.com/read/28335780/considerable-interobserver-variation-in-delineation-of-pancreatic-cancer-on-3dct-and-4dct-a-multi-institutional-study
#7
Eva Versteijne, Oliver J Gurney-Champion, Astrid van der Horst, Eelco Lens, M Willemijn Kolff, Jeroen Buijsen, Gati Ebrahimi, Karen J Neelis, Coen R N Rasch, Jaap Stoker, Marcel van Herk, Arjan Bel, Geertjan van Tienhoven
BACKGROUND: The delineation of pancreatic tumors on CT is challenging. In this study, we quantified the interobserver variation for pancreatic tumor delineation on 3DCT as well as on 4DCT. METHODS: Eight observers (radiation oncologists) from six institutions delineated pancreatic tumors of four patients with (borderline) resectable pancreatic cancer. The study consisted of two stages. In the 3DCT-stage, the gross tumor volume (GTV) was delineated on a contrast-enhanced scan...
March 23, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28334424/frequency-and-function-in-the-basal-ganglia-the-origins-of-beta-and-gamma-band-activity
#8
Alexander Blenkinsop, Sean Anderson, Kevin Gurney
Neural oscillations in the basal ganglia are well studied yet remain poorly understood. Behavioural correlates of spectral activity are well described, yet a quantitative hypothesis linking time domain dynamics and spectral properties to basal ganglia function has been lacking. We show, for the first time, that a unified description is possible by interpreting previously ignored structure in data describing GPi responses to cortical stimulation. These data were used to expose a pair of distinctive neuronal responses to the stimulation...
March 23, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28333256/analgesia-use-during-pregnancy-and-risk-of-cryptorchidism-a-systematic-review-and-meta-analysis
#9
Jason Gurney, Lorenzo Richiardi, Katherine A McGlynn, Virginia Signal, Diana Sarfati
STUDY QUESTION: Are boys who are born to mothers who use analgesics during pregnancy at increased risk of cryptorchidism compared to those born to mothers who do not take analgesia? SUMMARY ANSWER: In this systematic review and meta-analysis of 10 published studies, we observed only weak evidence of an association between analgesia use during pregnancy and risk of cryptorchidism in the son. WHAT IS KNOWN ALREADY: Concentrations of analgesia relevant to human exposure have been implicated as causing endocrine disturbances in the developing foetal testis...
May 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28326412/total-knee-arthroplasty-in-multiple-sclerosis
#10
Kaitlyn E Hughes, Darren Nickel, Tanner Gurney-Dunlop, Katherine B Knox
We present a case report of total knee arthroplasty complicated by spasticity and contractures in a patient with multiple sclerosis (MS). Four previous case reports in the literature describe adverse outcomes after total knee arthroplasty in persons with MS secondary to severe spasticity. Preoperative, intraoperative, and postoperative considerations for persons with MS, which may help to improve functional outcomes, are discussed. Prospective research is needed among persons with MS to help determine the timing and selection of persons for arthroplasty and to minimize complications related to spasticity...
September 2016: Arthroplasty Today
https://www.readbyqxmd.com/read/28294108/on-the-correct-interpretation-of-the-low-voltage-regime-in-intrinsic-single-carrier-devices
#11
Jason A Röhr, Thomas Kirchartz, Jenny Nelson
We discuss the approach of determining the charge-carrier density of a single-carrier device by combining Ohm's law and the Mott-Gurney law. We show that this approach is seldom valid, due to the fact that whenever Ohm's law is applicable the Mott-Gurney law is usually not, and vice versa. We do this using a numerical drift-diffusion solver to calculate the current density-voltage curves and the charge-carrier density, with increasing doping concentration. As this doping concentration is increased to very large values, using Ohm's law becomes a sensible way of measuring the product of mobility and doping density in the sample...
May 24, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28278515/phase-2-study-of-circulating-microrna-biomarkers-in-castration-resistant-prostate-cancer
#12
Hui-Ming Lin, Kate L Mahon, Calan Spielman, Howard Gurney, Girish Mallesara, Martin R Stockler, Patricia Bastick, Karen Briscoe, Gavin Marx, Alexander Swarbrick, Lisa G Horvath
BACKGROUND: Biomarkers of therapeutic response and prognosis are needed to assist in the sequencing of treatments for metastatic castration-resistant prostate cancer (CRPC). Previously in a Phase 1 discovery study, we identified 14 circulating microRNAs that were associated with response to docetaxel chemotherapy or overall survival. We performed a Phase 2 validation study to verify these findings. METHODS: Using real-time PCR, the levels of the 14 microRNAs were measured in plasma collected before and after the first cycle of docetaxel from a Phase 2 cohort of 89 patients...
April 11, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28262413/checkmate-025-randomized-phase-3-study-outcomes-by-key-baseline-factors-and-prior-therapy-for-nivolumab-versus-everolimus-in-advanced-renal-cell-carcinoma
#13
Bernard Escudier, Padmanee Sharma, David F McDermott, Saby George, Hans J Hammers, Sandhya Srinivas, Scott S Tykodi, Jeffrey A Sosman, Giuseppe Procopio, Elizabeth R Plimack, Daniel Castellano, Howard Gurney, Frede Donskov, Katriina Peltola, John Wagstaff, Thomas C Gauler, Takeshi Ueda, Huanyu Zhao, Ian M Waxman, Robert J Motzer
BACKGROUND: The randomized, phase 3 CheckMate 025 study of nivolumab (n=410) versus everolimus (n=411) in previously treated adults (75% male; 88% white) with advanced renal cell carcinoma (aRCC) demonstrated significantly improved overall survival (OS) and objective response rate (ORR). OBJECTIVE: To investigate which baseline factors were associated with OS and ORR benefit with nivolumab versus everolimus. DESIGN, SETTING, AND PARTICIPANTS: Subgroup OS analyses were performed using Kaplan-Meier methodology...
March 2, 2017: European Urology
https://www.readbyqxmd.com/read/28212060/pembrolizumab-as-second-line-therapy-for-advanced-urothelial-carcinoma
#14
Joaquim Bellmunt, Ronald de Wit, David J Vaughn, Yves Fradet, Jae-Lyun Lee, Lawrence Fong, Nicholas J Vogelzang, Miguel A Climent, Daniel P Petrylak, Toni K Choueiri, Andrea Necchi, Winald Gerritsen, Howard Gurney, David I Quinn, Stéphane Culine, Cora N Sternberg, Yabing Mai, Christian H Poehlein, Rodolfo F Perini, Dean F Bajorin
Background Patients with advanced urothelial carcinoma that progresses after platinum-based chemotherapy have a poor prognosis and limited treatment options. Methods In this open-label, international, phase 3 trial, we randomly assigned 542 patients with advanced urothelial cancer that recurred or progressed after platinum-based chemotherapy to receive pembrolizumab (a highly selective, humanized monoclonal IgG4κ isotype antibody against programmed death 1 [PD-1]) at a dose of 200 mg every 3 weeks or the investigator's choice of chemotherapy with paclitaxel, docetaxel, or vinflunine...
March 16, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28099022/molecular-weight-dependence-of-interdiffusion-and-adhesion-of-polymers-at-short-contact-times
#15
Robert Gurney, Anastase Henry, Regis Schach, Anke Lindner, Costantino Creton
The autohesion and subsequent debonding of thin layers of three linear and monodisperse random copolymers of styrene-butadiene (SBR) with molecular weights varying between 30 and 75 times the average molecular weight between entanglements Me were investigated using a carefully controlled tack adhesion testing device in conjunction with a fast camera setup over a range of contact times tc (10 ms to 10 s) much shorter in comparison to the terminal relaxation times of the polymers. The evolution of the stress-strain curves and debonding mechanisms with increasing contact time was examined, and the work required to debond the layers was found to be strongly dependent on molecular weight at long contact times, but not at short contact times...
February 6, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28092408/network-structure-and-local-adaptation-in-co-evolving-bacteria-phage-interactions
#16
James Gurney, Lafi Aldakak, Alex Betts, Claire Gougat-Barbera, Timothée Poisot, Oliver Kaltz, Michael E Hochberg
Numerous theoretical and experimental studies have investigated antagonistic co-evolution between parasites and their hosts. Although experimental tests of theory from a range of biological systems are largely concordant regarding the influence of several driving processes, we know little as to how mechanisms acting at the smallest scales (individual molecular and phenotypic changes) may result in the emergence of structures at larger scales, such as co-evolutionary dynamics and local adaptation. We capitalized on methods commonly employed in community ecology to quantify how the structure of community interaction matrices, so-called bipartite networks, reflected observed co-evolutionary dynamics, and how phages from these communities may or may not have adapted locally to their bacterial hosts...
January 16, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28090568/pathophysiology-of-intestinal-na-h-exchange
#17
Michael A Gurney, Daniel Laubitz, Fayez K Ghishan, Pawel R Kiela
Several members of the SLC9A family of Na(+)/H(+) exchangers are expressed in the gut, with varying expression patterns and cellular localization. Not only do they participate in the regulation of basic epithelial cell functions, including control of transepithelial Na(+) absorption, intracellular pH (pH i ), cell volume, and nutrient absorption, but also in cellular proliferation, migration, and apoptosis. Additionally, they modulate the extracellular milieu in order to facilitate other nutrient absorption and to regulate the intestinal microbial microenvironment...
January 2017: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28062066/28-year-old-woman-with-malaise-cough-myalgia-and-dark-urine
#18
Mark Gurney, Thomas G Cotter, Christopher M Wittich
No abstract text is available yet for this article.
January 2017: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/28054669/comparison-of-the-pharmacological-profiles-of-selective-pde4b-and-pde4d-inhibitors-in-the-central-nervous-system
#19
Chong Zhang, Ying Xu, Han-Ting Zhang, Mark E Gurney, James M O'Donnell
Inhibition of cyclic AMP (cAMP)-specific phosphodiesterase 4 (PDE4) has been proposed as a potential treatment for a series of neuropsychological conditions such as depression, anxiety and memory loss. However, the specific involvement of each of the PDE4 subtypes (PDE4A, 4B and 4C) in different categories of behavior has yet to be elucidated. In the present study, we compared the possible pharmacological effects of PDE4B and PDE4D selective inhibitors, A-33 and D159687, in mediating neurological function in mice...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28049833/antibiotic-stress-selects-against-cooperation-in-the-pathogenic-bacterium-pseudomonas-aeruginosa
#20
Marie Vasse, Robert J Noble, Andrei R Akhmetzhanov, Clara Torres-Barceló, James Gurney, Simon Benateau, Claire Gougat-Barbera, Oliver Kaltz, Michael E Hochberg
Cheats are a pervasive threat to public goods production in natural and human communities, as they benefit from the commons without contributing to it. Although ecological antagonisms such as predation, parasitism, competition, and abiotic environmental stress play key roles in shaping population biology, it is unknown how such stresses generally affect the ability of cheats to undermine cooperation. We used theory and experiments to address this question in the pathogenic bacterium, Pseudomonas aeruginosa Although public goods producers were selected against in all populations, our competition experiments showed that antibiotics significantly increased the advantage of nonproducers...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
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