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https://www.readbyqxmd.com/read/28736315/the-spectrum-of-triple-negative-breast-disease-high-and-low-grade-lesions
#1
REVIEW
Felipe C Geyer, Fresia Pareja, Britta Weigelt, Emad Rakha, Ian O Ellis, Stuart J Schnitt, Jorge S Reis-Filho
Triple-negative breast cancer is viewed clinically as an aggressive subgroup of breast cancer. In fact, the majority of triple-negative breast cancers are poor-prognosis tumors with a complex genomic landscape. However, triple-negative disease is vastly heterogeneous, encompassing multiple entities with marked genetic, transcriptional, histological, and clinical differences, with neoplasms in this group ranging from low- to high-grade. Among the less common low-grade triple-negative lesions, two large subgroups, both with a rather indolent behavior, can be distinguished: a low-grade triple-negative breast neoplasia family, which includes nonobligate precursors of triple-negative breast cancer, and, despite being low-grade, harbor the complex genomic landscape of usual triple-negative breast cancer, and the salivary gland-like tumors of the breast, lacking all of the cardinal molecular features of conventional triple-negative breast cancer and underpinned by specific fusion-genes or hotspot mutations, which may be of diagnostic and possibly therapeutic utility...
July 20, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28734974/the-effects-of-pneumoperitoneum-and-the-steep-trendelenburg-position-on-heart-rate-variability-and-cerebral-oxygenation-during-robotic-sacrocolpopexy
#2
Emad Matanes, Amir Weissman, Aleksandr Rivlin, Roy Lauterbach, Amnon Amit, Zeev Wiener, Lior Lowenstein
STUDY OBJECTIVE: The aim of the current study was to investigate how steep Trendelenburg positioning with pneumoperitoneum modifies brain oxygenation and autonomic nervous system modulation of heart rate variability during robotic sacrocolpopexy. DESIGN: A 5-minute computerized ECG, cerebral O2 saturation (cSO2), systemic O2 saturation (sSO2), heart rate (HR), diastolic blood pressure (BP), systolic BP and end tidal CO2 tension were recorded immediately after anesthesia induction (baseline phase) and after alterations in positioning and in intra-abdominal pressure...
July 19, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28734778/diagnostic-value-of-18-f-fdg-pet-ct-for-the-follow-up-and-restaging-of-soft-tissue-sarcomas-in-adults
#3
T W Kassem, O Abdelaziz, S Emad-Eldin
PURPOSE: The purpose of this study was to evaluate the clinical utility of 2-[(18)F] fluoro-2-deoxy-D-glucose ((18)FDG) positron emission tomography (PET)/computed tomography (CT) ((18)F-FDG-PET/CT) in the follow-up of adult patients with soft tissue sarcomas. MATERIALS AND METHODS: We prospectively evaluated 37 consecutive patients with known soft tissue sarcoma with (18)F-FDG-PET/CT examination for suspected recurrence of disease. They were 21 men and 16 women with a mean age of 49...
July 19, 2017: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/28721976/screening-irritable-bowel-syndrome-patients-for-symptoms-predictive-of-crohn-s-disease-using-the-red-flag-score
#4
Mahmoud Mosli, Mutaz Bamarhul, Abdulrahman Alharbi, Sohaib Shafei, Ahmad Alharbi, Khalid Bamahfouth, Hani Jawa, Emad Aljahdali, Salim Bazaraa, Yousif Qari
BACKGROUND/AIMS: The diagnosis of inflammatory bowel disease (IBD) is often delayed due to misdiagnosing patients with irritable bowel syndrome (IBS), mostly because of the under-recognition of high-risk features. The red flag score (RFS) has been recently developed to identify patients with higher risk of IBD rather than IBS. The aim of this study is to estimate the prevalence of high-risk features, according to the RFS, among patients diagnosed with IBS who would consequently be candidates for ileocolonoscopic evaluation...
July 2017: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/28720841/novel-immunohistochemistry-based-signatures-to-predict-metastatic-site-of-triple-negative-breast-cancers
#5
Sergey Klimov, Padmashree Cg Rida, Mohammed A Aleskandarany, Andrew R Green, Ian O Ellis, Emiel Am Janssen, Emad A Rakha, Ritu Aneja
BACKGROUND: Although distant metastasis (DM) in breast cancer (BC) is the most lethal form of recurrence and the most common underlying cause of cancer related deaths, the outcome following the development of DM is related to the site of metastasis. Triple negative BC (TNBC) is an aggressive form of BC characterised by early recurrences and high mortality. Athough multiple variables can be used to predict the risk of metastasis, few markers can predict the specific site of metastasis...
July 18, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28715689/structure-and-absolute-configuration-of-some-5-chloro-2-methoxy-n-phenylbenzamide-derivatives
#6
Alaaeldin M F Galal, Elsayed M Shalaby, Ahmed Abouelsayed, Medhat A Ibrahim, Emad Al-Ashkar, Atef G Hanna
The absolute configuration of 5-chloro-2-methoxy-N-phenylbenzamide single crystal [compound (1)] and the effect of introducing -[CH2]n-, n=1,2 group adjacent to the amide group [compounds (2) and (3)], were studied. Furthermore, the replacement of the methoxy group with a hydroxy group [compound (4)] was defined. Proton and carbon-13 NMR spectrometer were used to record the structural information of the prepared compounds. X-ray single crystal diffractometer were used to elucidate the 3D structural configurations...
July 4, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28714259/dopant-free-hole-transporting-materials-for-stable-and-efficient-perovskite-solar-cells
#7
Sanghyun Paek, Peng Qin, Yonghui Lee, Kyung Taek Cho, Peng Gao, Giulia Grancini, Emad Oveisi, Paul Gratia, Kasparas Rakstys, Shaheen A Al-Muhtaseb, Christian Ludwig, Jaejung Ko, Mohammad Khaja Nazeeruddin
Molecularly engineered novel dopant-free hole-transporting materials for perovskite solar cells (PSCs) combined with mixed-perovskite (FAPbI3 )0.85 (MAPbBr3 )0.15 (MA: CH3 NH3(+) , FA: NH=CHNH3(+) ) that exhibit an excellent power conversion efficiency of 18.9% under AM 1.5 conditions are investigated. The mobilities of FA-CN, and TPA-CN are determined to be 1.2 × 10(-4) cm(2) V(-1) s(-1) and 1.1 × 10(-4) cm(2) V(-1) s(-1) , respectively. Exceptional stability up to 500 h is measured with the PSC based on FA-CN...
July 17, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28713840/ultrafast-kinetics-of-linkage-isomerism-in-na2-fe-cn-5no-aqueous-solution-revealed-by-time-resolved-photoelectron-spectroscopy
#8
Azhr A Raheem, Martin Wilke, Mario Borgwardt, Nicholas Engel, Sergey I Bokarev, Gilbert Grell, Saadullah G Aziz, Oliver Kühn, Igor Yu Kiyan, Christoph Merschjann, Emad F Aziz
The kinetics of ultrafast photoinduced structural changes in linkage isomers is investigated using Na2[Fe(CN)5NO] as a model complex. The buildup of the metastable side-on configuration of the NO ligand, as well as the electronic energy levels of ground, excited, and metastable states, has been revealed by means of time-resolved extreme UV (XUV) photoelectron spectroscopy in aqueous solution, aided by theoretical calculations. Evidence of a short-lived intermediate state in the isomerization process and its nature are discussed, finding that the complete isomerization process occurs in less than 240 fs after photoexcitation...
July 2017: Structural Dynamics (Melville, N.Y.)
https://www.readbyqxmd.com/read/28713694/gasless-trans-axillary-robotic-thyroidectomy-the-technique-and-evidence
#9
REVIEW
Hassan A Alzahrani, Khuzema Mohsin, Daniah Bu Ali, Fadi Murad, Emad Kandil
Robot assisted thyroid surgery has the advantage of a superior field vision and technical advancements of robotic technology that have permitted novel remote access thyroid surgical approaches. Gasless trans-axillary robot-assisted thyroidectomy has been proved to be among the most current feasible approaches. This approach offers an excellent cosmetic outcome, with comparable outcomes to conventional surgical approaches. This review aims to provide details of this specific remote access technique for thyroid resection with most recent evidences in the literature...
June 2017: Gland Surgery
https://www.readbyqxmd.com/read/28713289/mitochondrial-vdac1-a-key-gatekeeper-as-potential-therapeutic-target
#10
REVIEW
Amadou K S Camara, YiFan Zhou, Po-Chao Wen, Emad Tajkhorshid, Wai-Meng Kwok
Mitochondria are the key source of ATP that fuels cellular functions, and they are also central in cellular signaling, cell division and apoptosis. Dysfunction of mitochondria has been implicated in a wide range of diseases, including neurodegenerative and cardiac diseases, and various types of cancer. One of the key proteins that regulate mitochondrial function is the voltage-dependent anion channel 1 (VDAC1), the most abundant protein on the outer membrane of mitochondria. VDAC1 is the gatekeeper for the passages of metabolites, nucleotides, and ions; it plays a crucial role in regulating apoptosis due to its interaction with apoptotic and anti-apoptotic proteins, namely members of the Bcl-2 family of proteins and hexokinase...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28705484/is-it-all-about-the-money-not-all-surgical-subspecialization-leads-to-higher-lifetime-revenue-when-compared-to-general-surgery
#11
Maria Baimas-George, Brian Fleischer, Douglas Slakey, Emad Kandil, James R Korndorffer, Christopher DuCoin
OBJECTIVE: It is believed that spending additional years gaining expertise in surgical subspecialization leads to higher lifetime revenue. Literature shows that more surgeons are pursuing fellowship training and dedicated research years; however, there are no data looking at the aggregate economic impact when training time is accounted for. It is hypothesized that there will be a discrepancy in lifetime income when delay to practice is considered. DESIGN: Data were collected from the Medical Group Management Association's 2015 report of average annual salaries...
July 10, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28702740/large-bariatric-specific-stents-and-over-the-scope-clips-in-the-management-of-post-bariatric-surgery-leaks
#12
Hany Shehab, Emad Abdallah, Khaled Gawdat, Inas Elattar
BACKGROUND: Endoscopic stents are successful in the management of surgical leaks; however, stent migration remains a significant problem. In this study, we present our approach depending on a large bariatrics-specific stent (Mega stent) and over-the-scope clips in the management of post-bariatric surgery leaks. METHODS: A retrospective analysis of all patients with post-bariatric surgery leaks treated at our institution using an approach reliant on Mega stents and over-the-scope clips was conducted...
July 12, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28696722/sensitivity-of-electron-transfer-mediated-decay-to-ion-pairing
#13
Marvin Nicolas Pohl, Clemens Richter, Evgeny Lugovoy, Robert Seidel, Petr Slavicek, Emad Flear Aziz, Bernd Abel, Bernd Winter, Uwe Hergenhahn
Ion pairing in electrolyte solutions remains a topic of discussion despite a long history of research. Very recently, nearest-neighbor mediated electronic deexcitation processes of core hole vacancies (Electron Transfer Mediated Decay, ETMD) were proposed to carry a spectral fingerprint of local solvation structure and in particular of contact ion pairs. Here, for the first time, we apply electron-electron coincidence detection to a liquid microjet, and record ETMD spectra of Li 1s vacancies in aqueous solutions of lithium chloride (LiCl) in direct comparison to lithium acetate (LiOAc)...
July 11, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28690902/group-a-streptococcal-pericarditis-in-a-four-month-old-infant-case-report
#14
Badria R Al-Waili, Sunny K Zacharias, Emad Aslem
Purulent pericarditis is uncommon among paediatric patients and cases caused by group A Streptococcus (GAS) are even rarer. We report a four-month-old female infant who was referred to the Royal Hospital, Muscat, Oman, in 2015 with pericardial effusion and cardiac tamponade. She had initially presented to a secondary hospital with a two-week history of fever, a runny nose and shortness of breath. Blood and pericardial fluid cultures confirmed GAS isolates. The infant was treated with a two-week course of antibiotics and made a complete recovery with no echocardiographical evidence of pericardial effusion at a two-month follow-up...
May 2017: Sultan Qaboos University Medical Journal
https://www.readbyqxmd.com/read/28689278/maternal-serum-homocysteine-and-uterine-artery-doppler-as-predictors-of-preeclampsia-and-poor-placentation
#15
Ahmed M Maged, Hany Saad, Hadeer Meshaal, Emad Salah, Suzy Abdelaziz, Eman Omran, Wesam S Deeb, Maha Katta
PURPOSE: The aim of this study was to evaluate the role of maternal serum total Homocysteine (tHcy) and uterine artery (Ut-A) Doppler as predictors of preeclampsia (PE), intrauterine growth restriction (IUGR), and other complications related to poor placentation. PATIENTS AND METHODS: A prospective cohort study was conducted on 500 women with spontaneous pregnancies. tHcy was measured at 15-19 weeks, and then, Ut-A Doppler was performed at 18-22 weeks of pregnancy...
July 8, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28687701/a-rare-case-of-epstein-barr-virus-mucocutaneous-ulcer-of-the-colon
#16
Mohammed Osman, Mohammed Al Salihi, Emad Abu Sitta, Samer Al Hadidi
Epstein-Barr virus mucocutaneous ulcer (EBVMCU) is a rare form of EBV lymphoproliferative disorder. The disease was recently described in 2010 for the first time in a case series and it was recently identified by the WHO classification of haematological malignancies as a separate category among the EBV lymphoproliferative disorders. We present a case of EBVMCU of the colon presenting as an ulcerating inflammatory mass in a female in her mid-60s who presented initially with abdominal pain and diarrhoea. The patient had extensive workup for her disease and due to progression of her symptoms, she was taken for an exploratory laparotomy...
July 6, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28684072/surgery-first-approach-in-orthognathic-surgery-psychological-and-biological-aspects-a-prospective-cohort-study
#17
Sebastian Zingler, Emad Hakim, Dominic Finke, Monika Brunner, Daniel Saure, Jürgen Hoffmann, Christopher J Lux, Ralf Erber, Robin Seeberger
INTRODUCTION: The aim of this pilot study was to investigate psychological and biological changes after application of a surgery-first orthognathic treatment approach. METHODS: A prospective cohort study of 9 patients (6 women and 3 men; mean age 26.7 years) suffering from skeletal Class II and III deformities was conducted. Skeletal changes from pre-to post-treatment were analyzed based on data acquired by use of cone-beam computed tomography (CBCT). Psychological changes were analyzed using the orthognathic quality of life (OQLQ) questionnaire, Sense of Coherence 29-item scale (SOC-29) and longitudinal day-to-day questionnaire...
June 6, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28683315/laminin-levels-regulate-tissue-migration-and-anterior-posterior-polarity-during-egg-morphogenesis-in-drosophila
#18
María C Díaz de la Loza, Alfonsa Díaz-Torres, Federico Zurita, Alicia E Rosales-Nieves, Emad Moeendarbary, Kristian Franze, María D Martín-Bermudo, Acaimo González-Reyes
Basement membranes (BMs) are specialized extracellular matrices required for tissue organization and organ formation. We study the role of laminin and its integrin receptor in the regulation of tissue migration during Drosophila oogenesis. Egg production in Drosophila involves the collective migration of follicle cells (FCs) over the BM to shape the mature egg. We show that laminin content in the BM increases with time, whereas integrin amounts in FCs do not vary significantly. Manipulation of integrin and laminin levels reveals that a dynamic balance of integrin-laminin amounts determines the onset and speed of FC migration...
July 5, 2017: Cell Reports
https://www.readbyqxmd.com/read/28677326/microbial-community-analysis-of-the-hypersaline-water-of-the-dead-sea-using-high-throughput-amplicon-sequencing
#19
Jacob H Jacob, Emad I Hussein, Muhamad Ali K Shakhatreh, Christopher T Cornelison
Amplicon sequencing using next-generation technology (bTEFAP(®) ) has been utilized in describing the diversity of Dead Sea microbiota. The investigated area is a well-known salt lake in the western part of Jordan found in the lowest geographical location in the world (more than 420 m below sea level) and characterized by extreme salinity (approximately, 34%) in addition to other extreme conditions (low pH, unique ionic composition different from sea water). DNA was extracted from Dead Sea water. A total of 314,310 small subunit RNA (SSU rRNA) sequences were parsed, and 288,452 sequences were then clustered...
July 5, 2017: MicrobiologyOpen
https://www.readbyqxmd.com/read/28676785/atypical-teratoid-rhabdoid-tumor-two-case-reports-and-an-analysis-of-adult-cases-with-implications-for-pathophysiology-and-treatment
#20
Christopher Dardis, Jared Yeo, Kelly Milton, Lynn S Ashby, Kris A Smith, Shwetal Mehta, Emad Youssef, Jenny Eschbacher, Kathy Tucker, Laughlin Dawes, Neil Lambie, Elizabeth Algar, Elizabeth Hovey
We present the first quantitative analysis of atypical teratoid rhabdoid tumors (ATRT) in adults, including two patients from our own institutions. These are of interest as one occurred during pregnancy and one is a long-term survivor. Our review of pathological findings of 50 reported cases of adult ATRT leads us to propose a solely ectodermal origin for the tumor and that epithelial-mesenchymal transition (EMT) is a defining feature. Thus, the term ATRT may be misleading. Our review of clinical findings shows that ATRT tends to originate in mid-line structures adjacent to the CSF, leading to a high rate of leptomeningeal dissemination...
2017: Frontiers in Neurology
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