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https://www.readbyqxmd.com/read/29135571/validation-of-cancer-cases-using-primary-care-cancer-registry-and-hospitalization-data-in-the-uk
#1
Andrea V Margulis, Joan Fortuny, James A Kaye, Brian Calingaert, Maria Reynolds, Estel Plana, Lisa J McQuay, Willem Jan Atsma, Billy Franks, Stefan de Vogel, Susana Perez-Gutthann, Alejandro Arana
BACKGROUND: In the United Kingdom, hospital or cancer registry data can be linked to electronic medical records for a subset of general practices and years. METHODS: We used Clinical Practice Research Datalink data (2004-2012) from patients treated for overactive bladder. We electronically identified provisional cases of 10 common cancers in General Practitioner Online Database data and validated them by medical profile review. In practices with linkage to Hospital Episodes Statistics and National Cancer Data Repository (2004-2010), we validated provisional cancer cases against these data sources...
November 9, 2017: Epidemiology
https://www.readbyqxmd.com/read/29133936/the-rho-gtpase-signalling-pathway-in-urothelial-carcinoma
#2
REVIEW
Solomon L Woldu, Ryan C Hutchinson, Laura-Maria Krabbe, Oner Sanli, Vitaly Margulis
Urothelial carcinoma remains a clinical challenge: non-muscle-invasive disease has a high rate of recurrence and risk of progression, and outcomes for patients with advanced disease are poor, owing to a lack of effective systemic therapies. The Rho GTPase family of enzymes was first identified >30 years ago and contains >20 members, which are divided into eight subfamilies: Cdc42, Rac, Rho, RhoUV, RhoBTB, RhoDF, RhoH, and Rnd. Rho GTPases are molecular on-off switches, which are increasingly being understood to have a critical role in a number of cellular processes, including cell migration, cell polarity, cell adhesion, cell cycle progression, and regulation of the cytoskeleton...
November 14, 2017: Nature Reviews. Urology
https://www.readbyqxmd.com/read/29105239/different-shades-of-default-mode-disturbance-in-schizophrenia-subnodal-covariance-estimation-in-structure-and-function
#3
Jérémy Lefort-Besnard, Danielle S Bassett, Jonathan Smallwood, Daniel S Margulies, Birgit Derntl, Oliver Gruber, Andre Aleman, Renaud Jardri, Gaël Varoquaux, Bertrand Thirion, Simon B Eickhoff, Danilo Bzdok
Schizophrenia is a devastating mental disease with an apparent disruption in the highly associative default mode network (DMN). Interplay between this canonical network and others probably contributes to goal-directed behavior so its disturbance is a candidate neural fingerprint underlying schizophrenia psychopathology. Previous research has reported both hyperconnectivity and hypoconnectivity within the DMN, and both increased and decreased DMN coupling with the multimodal saliency network (SN) and dorsal attention network (DAN)...
November 3, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/29079210/differences-at-presentation-and-treatment-of-testicular-cancer-in-hispanic-men-institutional-and-national-hospital-based-analysis
#4
Solomon L Woldu, Ahmet M Aydin, Ashwin V Rao, Ryan C Hutchinson, Nirmish Singla, Timothy N Clinton, Laura-Maria Krabbe, Niccolo M Passoni, Ganesh V Raj, David S Miller, James F Amatruda, Arthur I Sagalowsky, Yair Lotan, Yull Arriaga, Vitaly Margulis, Aditya Bagrodia
OBJECTIVE: To describe epidemiological patterns, stage at presentation, histology, and treatment differences associated with Hispanic men diagnosed with testicular germ cell tumor (TGCT). Hispanics are the fastest growing demographic in the United States and reports suggest that the incidence of TGCT is rising most rapidly in this demographic, yet little is known about TGCTs in Hispanic patients. MATERIAL AND METHODS: We compared patient factors, tumor characteristics, treatment patterns, and outcomes of non-Hispanic white (NHW) vs...
October 24, 2017: Urology
https://www.readbyqxmd.com/read/29058737/on-demand-electrically-controlled-drug-release-from-resorbable-nanocomposite-films
#5
Devleena Samanta, Rohan Mehrotra, Katy Margulis, Richard N Zare
Electroresponsive materials are promising carriers for developing drug delivery systems (DDSs) with excellent spatial, temporal, and dosage control over drug release. Current electroresponsive systems use high voltages (2-25 V), are not bioresorbable, or use materials with unknown long-term biocompatibility. We report here a nanocomposite film that is resorbable, electroresponsive at low voltages (<-2 V), and composed of entirely FDA-approved materials. Our DDS is based on poly(methyl methacrylate-co-methacrylic acid), commercially marketed as Eudragit S100 (EGT), which has pH-dependent aqueous solubility...
November 2, 2017: Nanoscale
https://www.readbyqxmd.com/read/29055387/the-colon-revisited-or-the-key-to-wellness-health-and-disease
#6
C A Gonzalez-Correa, E Mulett-Vásquez, D A Miranda, C H Gonzalez-Correa, P A Gómez-Buitrago
The hypothesis being advanced in this paper is that there is a new medical paradigm emerging from the biomedical research carried out in this century, mainly due to the explosion of the so called "omics" and associated techniques. The main idea is that there is a common pathway from wellbeing and health to chronic disease ("chronopathy") and even to death, which comprises following steps: 1) unhealthy diet, sedentary life style and permanent exposition to xenobiotics and all kinds of noxious stimuli;→2) intestinal dysbiosis;→3) alteration of the intestinal mucus layer (especially that of the colon);→4) disruption of the endothelial tight junctions;→5) metabolic endotoxemia+bacterial translocation;→6) inflammation;→7) exacerbation of the enteric nervous system (ENS) and consequent maladaptation and malfunctioning of the colon;→8) epigenetic manifestations;→9) "chronopathy" and premature death...
October 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29023576/overexpression-of-tissue-nonspecific-alkaline-phosphatase-tnap-in-endothelial-cells-accelerates-coronary-artery-disease-in-a-mouse-model-of-familial-hypercholesterolemia
#7
Filippo Romanelli, AnthonyMarco Corbo, Maryam Salehi, Manisha C Yadav, Soha Salman, David Petrosian, Omid J Rashidbaigi, Jesse Chait, Jes Kuruvilla, Maria Plummer, Ilian Radichev, Kenneth B Margulies, A Martin Gerdes, Anthony B Pinkerton, José Luis Millán, Alexei Y Savinov, Olga V Savinova
OBJECTIVE: Overexpression of tissue-nonspecific alkaline phosphatase (TNAP) in endothelium leads to arterial calcification in mice. The purpose of this study was to examine the effect of elevated endothelial TNAP on coronary atherosclerosis. In addition, we aimed to examine endogenous TNAP activity in human myocardium. APPROACH AND RESULTS: A vascular pattern of TNAP activity was observed in human non-failing, ischemic, and idiopathic dilated hearts (5 per group); no differences were noted between groups in this study...
2017: PloS One
https://www.readbyqxmd.com/read/28940605/adjuvant-chemotherapy-after-radical-nephroureterectomy-does-not-improve-survival-in-patients-with-upper-tract-urothelial-carcinoma-a-joint-study-by-the-european-association-of-urology-young-academic-urologists-and-the%C3%A2-upper-tract-urothelial-carcinoma-collaboration
#8
Andrea Necchi, Salvatore Lo Vullo, Luigi Mariani, Marco Moschini, Kees Hendricksen, Michael Rink, Roman Sosnowski, Jakub Dobruch, Jay D Raman, Christopher G Wood, Vitaly Margulis, Morgan Roupret, Alberto Briganti, Francesco Montorsi, Evanguelos Xylinas, Shahrokh F Shariat
OBJECTIVE: To analyse the outcomes of adjuvant chemotherapy vs observation in a multicentre cohort of patients with upper tract urothelial carcinoma (UTUC) in order to clarify whether such patients benefit from adjuvant chemotherapy after radical nephroureterectomy (RNU). PATIENTS AND METHODS: Data from 15 centres were collected for a total of 1544 patients, treated between 2000 and 2015. Criteria for patient selection included pT2-4N0/x stage, or lymph node-positive disease, and prior RNU...
September 20, 2017: BJU International
https://www.readbyqxmd.com/read/28935185/impact-of-hospital-case-volume-on-testicular-cancer-outcomes-and-practice-patterns
#9
Solomon L Woldu, Justin T Matulay, Timothy N Clinton, Nirmish Singla, Laura-Maria Krabbe, Ryan C Hutchinson, Arthur Sagalowsky, Yair Lotan, Vitaly Margulis, Aditya Bagrodia
BACKGROUND: Given the rarity of testicular germ cell tumors (TGCTs) and the complex aspects of management, we evaluate the effect of hospital TGCT case volume on overall survival outcomes and practice patterns. MATERIALS AND METHODS: The National Cancer Database was queried for patients diagnosed with seminoma or nonseminomatous germ cell tumor (NSGCT). Hospitals were classified by case volume as high (99th percentile, ≥26.1 cases annually), high-intermediate (95-99th percentile, 14...
September 18, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28882819/cardiomyocyte-specific-telomere-shortening-is-a-distinct-signature-of-heart-failure-in-humans
#10
Maryam Sharifi-Sanjani, Nicholas M Oyster, Elisia D Tichy, Kenneth C Bedi, Ofer Harel, Kenneth B Margulies, Foteini Mourkioti
BACKGROUND: Telomere defects are thought to play a role in cardiomyopathies, but the specific cell type affected by the disease in human hearts is not yet identified. The aim of this study was to systematically evaluate the cell type specificity of telomere shortening in patients with heart failure in relation to their cardiac disease, age, and sex. METHODS AND RESULTS: We studied cardiac tissues from patients with heart failure by utilizing telomere quantitative fluorescence in situ hybridization, a highly sensitive method with single-cell resolution...
September 7, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28768909/addressing-metabolic-heterogeneity-in-clear-cell-renal-cell-carcinoma-with-quantitative-dixon-mri
#11
Yue Zhang, Durga Udayakumar, Ling Cai, Zeping Hu, Payal Kapur, Eun-Young Kho, Andrea Pavía-Jiménez, Michael Fulkerson, Alberto Diaz de Leon, Qing Yuan, Ivan E Dimitrov, Takeshi Yokoo, Jin Ye, Matthew A Mitsche, Hyeonwoo Kim, Jeffrey G McDonald, Yin Xi, Ananth J Madhuranthakam, Durgesh K Dwivedi, Robert E Lenkinski, Jeffrey A Cadeddu, Vitaly Margulis, James Brugarolas, Ralph J DeBerardinis, Ivan Pedrosa
BACKGROUND: Dysregulated lipid and glucose metabolism in clear cell renal cell carcinoma (ccRCC) has been implicated in disease progression, and whole tumor tissue-based assessment of these changes is challenged by the tumor heterogeneity. We studied a noninvasive quantitative MRI method that predicts metabolic alterations in the whole tumor. METHODS: We applied Dixon-based MRI for in vivo quantification of lipid accumulation (fat fraction [FF]) in targeted regions of interest of 45 primary ccRCCs and correlated these MRI measures to mass spectrometry-based lipidomics and metabolomics of anatomically colocalized tissue samples isolated from the same tumor after surgery...
August 3, 2017: JCI Insight
https://www.readbyqxmd.com/read/28756575/evaluating-the-safety-of-medication-exposures-during-pregnancy-a-case-study-of-study-designs-and-data-sources-in-multiple-sclerosis
#12
Whitney S Krueger, Mary S Anthony, Catherine W Saltus, Andrea V Margulis, Elena Rivero-Ferrer, Brigitta Monz, Ceri Hirst, David Wormser, Elizabeth Andrews
BACKGROUND: Regulatory agencies often request prospective, product-specific post-authorization pregnancy exposure registries to monitor safety during pregnancy, even though studies using existing health databases could also be employed. OBJECTIVES: Using multiple sclerosis (MS) as a case study, we evaluated various study designs and data sources previously used to study medication exposure in pregnancy. METHODS: We examined (1) strengths and limitations of study designs used for pregnancy safety studies in women exposed to MS-specific medications during pregnancy and (2) existing data sources used to conduct such studies in other disease areas...
July 29, 2017: Drugs—Real World Outcomes
https://www.readbyqxmd.com/read/28717236/high-performance-micro-flow-cytometer-based-on-optical-fibres
#13
S Etcheverry, A Faridi, H Ramachandraiah, T Kumar, W Margulis, F Laurell, A Russom
Flow cytometry is currently the gold standard for analysis of cells in the medical laboratory and biomedical research. Fuelled by the need of point-of-care diagnosis, a significant effort has been made to miniaturize and reduce cost of flow cytometers. However, despite recent advances, current microsystems remain less versatile and much slower than their large-scale counterparts. In this work, an all-silica fibre microflow cytometer is presented that measures fluorescence and scattering from particles and cells...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28709887/frequency-and-prognostic-value-of-pten-loss-in-patients-with-upper-tract-urothelial-carcinoma-treated-with-radical-nephroureterectomy
#14
Malte Rieken, Shahrokh F Shariat, Jose A Karam, Beat Foerster, Francesca Khani, Kilian Gust, Mohammad Abufaraj, Christopher G Wood, Alon Z Weizer, Jay D Raman, Charles C Guo, Nathalie Rioux-Leclercq, Andrea Haitel, Karim Bensalah, Yair Lotan, Alexander Bachmann, Angelo M De Marzo, Brian D Robinson, Vitaly Margulis
PURPOSE: To our knowledge the frequency and prognostic significance of PTEN protein expression in upper tract urothelial carcinoma have not yet been investigated in large studies. We analyzed PTEN protein status and its association with disease recurrence and survival outcomes in a large, multi-institutional upper tract urothelial carcinoma cohort. MATERIALS AND METHODS: We retrospectively analyzed the records of 611 patients with upper tract urothelial carcinoma treated with radical nephroureterectomy between 1991 and 2008 at a total of 7 institutions...
December 2017: Journal of Urology
https://www.readbyqxmd.com/read/28694147/predictive-and-prognostic-value-of-preoperative-thrombocytosis-in-upper-tract-urothelial-carcinoma
#15
Beat Foerster, Marco Moschini, Mohammad Abufaraj, Francesco Soria, Kilian M Gust, Morgan Rouprêt, Pierre I Karakiewicz, Alberto Briganti, Michael Rink, Luis Kluth, Romain Mathieu, Vitaly Margulis, Yair Lotan, Atiqullah Aziz, Hubert John, Shahrokh F Shariat
PURPOSE: The purpose of this study was to evaluate the predictive and prognostic role of preoperative thrombocytosis (TC) in upper tract urothelial carcinoma (UTUC) after radical nephroureterectomy (RNU) in a large multi-institutional cohort of patients. METHODS: Records of 2492 patients undergoing RNU for non-metastatic UTUC between 1990 and 2008 were retrospectively analyzed. Preoperative TC was defined as a platelet count > 400 × 10(9)/L, irrespective of gender type...
June 19, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28668287/prognostic-value-of-pd-1-and-pd-l1-expression-in-patients-with-high-grade-upper-tract-urothelial-carcinoma
#16
Laura-Maria Krabbe, Barbara Heitplatz, Sina Preuss, Ryan C Hutchinson, Solomon L Woldu, Nirmish Singla, Martin Boegemann, Christopher G Wood, Jose A Karam, Alon Z Weizer, Jay D Raman, Mesut Remzi, Nathalie Rioux-Leclercq, Andrea Haitel, Leonid M Rapoport, Peter V Glybochko, Marco Roscigno, Christian Bolenz, Karim Bensalah, Arthur I Sagalowsky, Shahrokh F Shariat, Yair Lotan, Evanguelos Xylinas, Vitaly Margulis
PURPOSE: We investigated the prognostic value of PD-1 and PD-L1 expression in patients with high grade upper tract urothelial carcinoma. MATERIALS AND METHODS: Tissue microarrays of 423 patients treated with extirpative surgery for high grade upper tract urothelial carcinoma from the International Upper Tract Urothelial Carcinoma collaboration were stained for PD-1 and PD-L1 using antibodies, including Cell Marque™ NAT105 diluted 1:250 and prediluted E1L3N® via immunohistochemistry...
December 2017: Journal of Urology
https://www.readbyqxmd.com/read/28559794/possible-function-of-molecular-chaperones-in-diseases-caused-by-propagating-amyloid-aggregates
#17
REVIEW
Vladimir F Lazarev, Elena R Mikhaylova, Irina V Guzhova, Boris A Margulis
The vast majority of neurodegenerative pathologies stem from the formation of toxic oligomers and aggregates composed of wrongly folded proteins. These protein complexes can be released from pathogenic cells and enthralled by other cells, causing the formation of new aggregates in a prion-like manner. By this mechanism, migrating complexes can transmit a disorder to distant regions of the brain and promote gradually transmitting degenerative processes. Molecular chaperones can counteract the toxicity of misfolded proteins...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28450110/a-hydrocortisone-derivative-binds-to-gapdh-and-reduces-the-toxicity-of-extracellular-polyglutamine-containing-aggregates
#18
Vladimir F Lazarev, Elena R Mikhaylova, Elizaveta A Dutysheva, Roman V Suezov, Irina V Guzhova, Boris A Margulis
Huntington's disease (HD) has been recently shown to have a horizontally transmitted, prion-like pathology. Thus, the migration of polyglutamine-containing aggregates to acceptor cells is important for the progression of HD. These aggregates contain glyceraldehyde-3-phosphate dehydrogenase (GAPDH), which increases their intracellular transport and their toxicity. Here, we show that RX624, a derivative of hydrocortisone that binds to GAPDH, prevents the formation of aggregates of GAPDH-polyglutamine excreted into the culture medium by PC-12 rat cells expressing mutant huntingtin...
April 24, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28442383/axial-abdominal-imaging-after-partial-nephrectomy-for-t1-renal-cell-carcinoma-surveillance
#19
Igor Sorokin, Noah E Canvasser, Vitaly Margulis, Yair Lotan, Ganesh Raj, Arthur Sagalowsky, Jeffrey C Gahan, Jeffrey A Cadeddu
PURPOSE: The overall recurrence rate of T1 renal cell carcinoma is low. We evaluated abdominal imaging after partial nephrectomy based on current guidelines for T1 renal cell carcinoma surveillance. MATERIALS AND METHODS: We retrospectively reviewed the records of patients with T1 renal cell carcinoma who underwent partial nephrectomy between 2006 and 2012 followed by abdominal imaging at our institution. Primary and secondary outcomes were the incidence and timing, respectively, of imaging diagnosed abdominal recurrences...
November 2017: Journal of Urology
https://www.readbyqxmd.com/read/28370075/cancer-incidence-after-initiation-of-antimuscarinic-medications-for-overactive-bladder-in-the-united-kingdom-evidence-for-protopathic-bias
#20
James A Kaye, Andrea V Margulis, Joan Fortuny, Lisa J McQuay, Estel Plana, Jennifer L Bartsch, Christine L Bui, Susana Perez-Gutthann, Alejandro Arana
STUDY OBJECTIVE: To estimate the incidence of 10 common cancers among patients treated with antimuscarinic medications for overactive bladder (AMOABs). DESIGN: Retrospective cohort study. DATA SOURCE: United Kingdom's Clinical Practice Research Datalink. PATIENTS: A total of 119,912 adults with no previous cancer diagnosis who were new users of AMOABs-darifenacin, fesoterodine, oxybutynin, solifenacin, tolterodine, or trospium-between January 2004 and December 2012...
June 2017: Pharmacotherapy
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