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https://www.readbyqxmd.com/read/28340470/calcifying-giant-cell-cardiomyopathy-a-possible-new-entity-images-in-cardiovascular-pathology
#1
Ke-Yong Wang, Sohsuke Yamada, Shohei Shimajiri, Ryuji Nakano, Naoki Yamashita, Tetsuya So, Akihide Tanimoto
We demonstrated an extremely unusual case of an 83-year-old male's sudden death secondary to characteristic myocardial necrosis and fibrosis with calcification and multinucleated giant cells infiltration, possibly due to sepsis and Stage IV pulmonary pleomorphic carcinoma-induced cachexia after postmortem study. We propose that this calcifying giant cell cardiomyopathy (CGC) would be a new entity especially from the pathological viewpoints and should be considered in the classification of noninfectious myocarditis...
March 12, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28340378/current-fda-approved-treatments-for-non-small-cell-lung-cancer-and-potential-biomarkers-for-its-detection
#2
REVIEW
Karla A Ruiz-Ceja, Yolanda I Chirino
BACKGROUND: Lung cancer is the leading worldwide cancer with almost 1.5 million deaths every year. Some drugs for lung cancer treatment have been available on the market for decades, but novel drugs have emerged promising better outcomes, especially for Non-Small Cell Lung Cancer (NSCLC), which represents 75% of lung cancer cases. However, how much do drugs have evolved for NSCLC treatment? Are they sharing the same mechanism of action? AIM: In this review we analyzed how the approved drugs by Federal Drug Agency for NSCLC have advanced in the last four decades identifying shared mechanism of action of medicines against NSCLC treatment and some of the potential biomarkers for early detection...
March 21, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28340359/diabetic-foot-ulcer-development-risk-classifications-validation-a-multicentre-prospective-cohort-study
#3
M Monteiro-Soares, R Ribas, C Pereira da Silva, T Bral, A Mota, S Pinheiro Torres, A Morgado, R Couceiro, R Ribeiro, V Dias, M Moreira, P Mourão, M J Oliveira, M Madureira, V Paixão-Dias, M Dinis-Ribeiro
AIMS: To prospectively validate the existing classifications to stratify subjects with diabetes mellitus (DM) by their risk of diabetic foot ulcer (DFU), in high and low risk settings. METHODS: A prospective multicentre cohort study was conducted, including 446 subjects with DM without active DFU followed in the hospital or primary care setting. Demographic, clinical characterization variables, and those included in the classifications were collected at baseline...
March 9, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28340357/ruthenium-complexes-with-phenylterpyridine-derivatives-target-cell-membrane-and-trigger-death-receptors-mediated-apoptosis-in-cancer-cells
#4
Zhiqin Deng, Pan Gao, Lianling Yu, Bin Ma, Yuanyuan You, Leung Chan, Chaoming Mei, Tianfeng Chen
Elucidation of the communication between metal complexes and cell membrane may provide useful information for rational design of metal-based anticancer drugs. Herein we synthesized a novel class of ruthenium (Ru) complexes containing phtpy derivatives (phtpy = phenylterpyridine), analyzed their structure-activity relationship and revealed their action mechanisms. The result showed that, the increase in the planarity of hydrophobic Ru complexes significantly enhanced their lipophilicity and cellular uptake...
March 18, 2017: Biomaterials
https://www.readbyqxmd.com/read/28340252/urinary-tract-infection-recent-insight-into-the-evolutionary-arms-race-between-uropathogenic-escherichia-coli-and-our-immune-system
#5
Sebastian Schwab, Katarzyna Jobin, Christian Kurts
Urinary tract infections (UTIs) are among the most common bacterial infections worldwide. Humans evolved various immune-dependent and independent defense mechanisms, while pathogens evolved multiple virulence factors to fight back. This article summarizes recent findings regarding the arms race between hosts and pathogens in UTIs. It was recently reported that macrophage subsets regulate neutrophil-mediated defense in primary UTIs but seem to subvert adaptive immunity upon re-infection. Moreover, some bacterial strains can survive inside macrophages, leading to recurrent infections...
March 15, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28340233/increase-in-drug-overdose-deaths-involving-fentanyl-rhode-island-january-2012-march-2014
#6
Melissa C Mercado, Steven A Sumner, M Bridget Spelke, Michele K Bohm, David E Sugerman, Christina Stanley
Objective.:  This study identified sociodemographic, substance use, and multiple opioid prescriber and dispenser risk factors among drug overdose decedents in Rhode Island, in response to an increase in overdose deaths (ODs) involving fentanyl. Methods.:  This cross-sectional investigation comprised all ODs reviewed by Rhode Island's Office of the State Medical Examiners (OSME) during January 2012 to March 2014. Data for 536 decedents were abstracted from OSME's charts, death certificates, toxicology reports, and Prescription Monitoring Program (PMP) databases...
March 6, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28340227/transplant-as-a-competing-risk-in-the-analysis-of-dialysis-patients
#7
Nan van Geloven, Saskia le Cessie, Friedo W Dekker, Hein Putter
Time-to-event analyses are frequently used in nephrology research, for instance, when recording time to death or time to peritonitis in dialysis patients. Many papers have pointed out the important issue of competing events (or competing risks) in such analyses. For example, when studying one particular cause of death it can be noted that patients also die from other causes. Such competing events preclude the event of interest from occurring and thereby complicate the statistical analysis. The Kaplan-Meier approach to calculating the cumulative probability of the event of interest yields invalid results in the presence of competing risks, thus the alternative cumulative incidence competing risk (CICR) approach has become the standard...
March 3, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28340221/nationwide-multicentre-kidney-biopsy-study-of-japanese-patients-with-type-2-diabetes
#8
Kengo Furuichi, Yukio Yuzawa, Miho Shimizu, Akinori Hara, Tadashi Toyama, Hiroshi Kitamura, Yoshiki Suzuki, Hiroshi Sato, Noriko Uesugi, Yoshifumi Ubara, Satoshi Hisano, Yoshihiko Ueda, Shinichi Nishi, Hitoshi Yokoyama, Tomoya Nishino, Kentaro Kohagura, Daisuke Ogawa, Koki Mise, Yugo Shibagaki, Kenjiro Kimura, Masakazu Haneda, Hirofumi Makino, Seiichi Matsuo, Takashi Wada
Background.: The clinical and pathologic manifestations of nephropathy due to type 2 diabetes are diverse, but large-scale pathologic studies with long-term observations are limited. Methods.: Kidney biopsies and clinical data of 600 patients with type 2 diabetes were collected retrospectively from 13 centres across Japan. Thirteen pathologic findings (nine glomerular lesions, two interstitial lesions and two vascular lesions) were clearly defined and scored. Results...
March 2, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28340216/meta-analysis-of-statins-in-chronic-kidney-disease-who-benefits
#9
C M Messow, C Isles
Background: Attempts to reduce the burden of vascular disease in advanced chronic kidney disease (CKD) by control of lipids have not been as successful as predicted. Aim: : To determine the extent to which the effectiveness of statins varies by kidney class. Design: Meta-analysis. Methods: We selected randomized trials of statin vs. placebo that gave outcomes for CKD3 (eGFR 30-59 ml/min), CKD4 (eGFR 15-29 ml/min), CKD5 (eGFR < 15 ml/min)/5D(dialysis) and transplant patients separately...
March 14, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28340206/monitoring-the-quality-of-cardiac-surgery-based-on-three-or-more-surgical-outcomes-using-a-new-variable-life-adjusted-display
#10
Fah Fatt Gan, Xu Tang, Yexin Zhu, Puay Weng Lim
Quality problem or issue: The traditional variable life-adjusted display (VLAD) is a graphical display of the difference between expected and actual cumulative deaths. The VLAD assumes binary outcomes: death within 30 days of an operation or survival beyond 30 days. Full recovery and bedridden for life, for example, are considered the same outcome. This binary classification results in a great loss of information. Initial assessment: Although there are many grades of survival, the binary outcomes are commonly used to classify surgical outcomes...
March 17, 2017: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/28340197/the-evolution-and-benefit-of-device-therapy-in-patients-listed-for-heart-transplant
#11
Bert Vandenberk, Mark Hinderks, Gabor Voros, Christophe Garweg, Johan Vanhaecke, Rik Willems
Aims: The latest 2015 ESC Guidelines on the prevention of sudden cardiac death make a Class IIa recommendation for ICD implantation in patients listed for heart transplantation. This recommendation was based on expert consensus in view of the sparsity of data. Methods and results: All patients listed for heart transplantation at the University Hospitals of Leuven from 2002 until 2014 were studied retrospectively. Exclusion criteria were age <16 years, cardiac disease other than ischaemic or dilated cardiomyopathy and re-transplantation...
March 9, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28340182/novel-targets-and-future-strategies-for-acute-cardioprotection-position-paper-of-the-european-society-of-cardiology-working-group-on-cellular-biology-of-the-heart
#12
Derek J Hausenloy, David Garcia-Dorado, Hans Erik Bøtker, Sean M Davidson, James Downey, Felix B Engel, Robert Jennings, Sandrine Lecour, Jonathan Leor, Rosalinda Madonna, Michel Ovize, Cinzia Perrino, Fabrice Prunier, Rainer Schulz, Joost P G Sluijter, Linda W Van Laake, Jakob Vinten-Johansen, Derek M Yellon, Kirsti Ytrehus, Gerd Heusch, Péter Ferdinandy
Ischaemic heart disease and the heart failure that often results, remain the leading causes of death and disability in Europe and worldwide. As such, in order to prevent heart failure and improve clinical outcomes in patients presenting with an acute ST-segment elevation myocardial infarction and patients undergoing coronary artery bypass graft surgery, novel therapies are required to protect the heart against the detrimental effects of acute ischaemia/reperfusion injury. During the last three decades, a wide variety of ischaemic conditioning strategies and pharmacological treatments have been tested in the clinic - however, their translation from experimental to clinical studies for improving patient outcomes has been both challenging and disappointing...
March 17, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28340172/repositioning-disulfiram-as-a-radiosensitizer-against-atypical-teratoid-rhabdoid-tumor
#13
Young Eun Lee, Seung Ah Choi, Pil Ae Kwack, Hak Jae Kim, Il Han Kim, Kyu-Chang Wang, Ji Hoon Phi, Ji Yeoun Lee, Sangjoon Chong, Sung-Hye Park, Kyung Duk Park, Do Won Hwang, Kyeung Min Joo, Seung-Ki Kim
Background.: Atypical teratoid/rhabdoid tumor (AT/RT) is one of the most common malignant brain tumors in infants. Although cancer stem cells of AT/RT express aldehyde dehydrogenase (ALDH), effective chemotherapies against AT/RT have not been established. Here, we examined radiosensitizing effects of disulfiram (DSF), an irreversible inhibitor of ALDH against AT/RT for a novel therapeutic method. Methods.: Patient-derived primary cultured AT/RT cells (SNU.AT/RT-5 and SNU...
March 17, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28340154/irradiation-strongly-reduces-tumorigenesis-of-human-induced-pluripotent-stem-cells
#14
Shoki Inui, Kazumasa Minami, Emiko Ito, Hiromasa Imaizumi, Seiji Mori, Masahiko Koizumi, Satsuki Fukushima, Shigeru Miyagawa, Yoshiki Sawa, Nariaki Matsuura
Induced pluripotent stem (iPS) cells have demonstrated they can undergo self-renewal, attain pluripotency, and differentiate into various types of functional cells. In clinical transplantation of iPS cells, however, a major problem is the prevention of tumorigenesis. We speculated that tumor formation could be inhibited by means of irradiation. Since the main purpose of this study was to explore the prevention of tumor formation in human iPS (hiPS) cells, we tested the effects of irradiation on tumor-associated factors such as radiosensitivity, pluripotency and cell death in hiPS cells...
March 3, 2017: Journal of Radiation Research
https://www.readbyqxmd.com/read/28340142/multigene-signature-for-predicting-prognosis-of-patients-with-1p19q-co-deletion-diffuse-glioma
#15
Xin Hu, Emmanuel Martinez-Ledesma, Siyuan Zheng, Hoon Kim, Floris Barthel, Tao Jiang, Kenneth R Hess, Roel G W Verhaak
Background.: Co-deletion of 1p and 19q marks a diffuse glioma subtype associated with relatively favorable overall survival; however, heterogeneous clinical outcomes are observed within this category. Methods.: We assembled gene expression profiles and sample annotation of 374 glioma patients carrying the 1p/19q co-deletion. We predicted 1p/19q status using gene expression when annotation was missing. A first cohort was randomly split into training (n = 170) and a validation dataset (n = 163)...
March 8, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28340112/long-term-mortality-of-patients-with-an-alcohol-related-wernicke-korsakoff-syndrome
#16
Arantza Sanvisens, Paola Zuluaga, Daniel Fuster, Inmaculada Rivas, Jordi Tor, Miguel Marcos, Antonio J Chamorro, Roberto Muga
Aims: To characterize a series of contemporary patients with alcohol-related Wernicke's encephalopathy (WE) or Korsakoff's syndrome (KS) and to update the current prognosis of disease. Methods: Retrospective and prospective study of patients diagnosed with an alcohol-related WE or KS between 2002 and 2011 in a tertiary hospital. Socio-demographic, alcohol use characteristics, signs and symptoms, co-morbidity and blood parameters were obtained at admission. Patients were followed up until 2013 and causes of death were ascertained through the review of charts...
March 10, 2017: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/28340096/dual-vs-single-chamber-defibrillators-for-primary-prevention-of-sudden-cardiac-death-long-term-follow-up-of-the-d%C3%A3-fibrillateur-automatique-implantable-pr%C3%A3-vention-primaire-registry
#17
Pascal Defaye, Serge Boveda, Didier Klug, Frankie Beganton, Olivier Piot, Kumar Narayanan, Marie-Cécile Périer, Daniel Gras, Laurent Fauchier, Pierre Bordachar, Vincent Algalarrondo, Dominique Babuty, Jean-Claude Deharo, Christophe Leclercq, Eloi Marijon, Nicolas Sadoul
Aims: Implantable cardioverter defibrillators (ICDs) are an effective primary prevention of sudden cardiac death. We examined whether dual-chamber (DC) ICDs confer a greater benefit than single-chamber (SC) ICDs, and compared the long-term outcomes of recipients of each type of device implanted for primary prevention. Methods and results: Between 2002 and 2012, the DAI-PP registry consecutively enrolled 1258 SC- and 1280 DC-ICD recipients at 12 French medical centres...
March 8, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28340083/evaluating-the-patterns-of-aging-related-tau-astrogliopathy-unravels-novel-insights-into-brain-aging-and-neurodegenerative-diseases
#18
Gabor G Kovacs, John L Robinson, Sharon X Xie, Edward B Lee, Murray Grossman, David A Wolk, David J Irwin, Dan Weintraub, Christopher F Kim, Theresa Schuck, Ahmed Yousef, Stephanie T Wagner, Eunran Suh, Vivianna M Van Deerlin, Virginia M-Y Lee, John Q Trojanowski
The term "aging-related tau astrogliopathy" (ARTAG) describes pathological accumulation of abnormally phosphorylated tau protein in astrocytes. We evaluated the correlates of ARTAG types (i.e., subpial, subependymal, white and gray matter, and perivascular) in different neuroanatomical regions. Clinical, neuropathological, and genetic (eg, APOE ε4 allele, MAPT H1/H2 haplotype) data from 628 postmortem brains from subjects were investigated; most of the patients had been longitudinally followed at the University of Pennsylvania...
March 14, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28340081/retroocular-and-subdural-hemorrhage-or-hemosiderin-deposits-in-pediatric-autopsies
#19
Marc R Del Bigio, Susan M Phillips
The presence of hemosiderin in the optic nerve sheath and/or retina is sometimes used to estimate the timing of injury in infants or children with suspected non-accidental head trauma. To determine the prevalence of hemosiderin in deaths not associated with trauma, we performed a prospective study of retroocular orbital tissue, cranial convexity, and cervical spinal cord dura mater in infants and children <2.5 years age. In 53 cases of non-traumatic death, approximately 70% had blood or hemosiderin within the orbital fat, ocular muscles, and parasagittal cranial and/or cervical spinal subdural compartment...
March 14, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28340054/outcomes-of-atrial-arrhythmia-radiofrequency-catheter-ablation-in-patients-with-ebstein-s-anomaly
#20
Abdallah Hassan, Nicholas Y Tan, Htin Aung, Heidi M Connolly, David O Hodge, Emily R Vargas, Bryan C Cannon, Douglas L Packer, Samuel J Asirvatham, Christopher J McLeod
Aims: Atrial arrhythmias are common in patients with Ebstein's anomaly (EA) despite cardiac surgical repair and concomitant Maze procedures. We aimed to evaluate the outcome of radiofrequency catheter ablation in this group of patients. Methods and results: All patients with EA and atrial arrhythmias who underwent catheter ablation for atrial arrhythmias between 1/1999 and 1/2016 were included. Atrial arrhythmia recurrence was identified as the primary outcome; secondary outcomes included repeat ablation, need for antiarrhythmic medications after ablation, and death...
February 27, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
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