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https://www.readbyqxmd.com/read/29779071/steady-state-perg-adaptation-a-conspicuous-component-of-response-variability-with-clinical-significance
#1
P Monsalve, S Ren, G Triolo, L Vazquez, A D Henderson, M Kostic, P Gordon, W J Feuer, V Porciatti
PURPOSE: To investigate within-test variability of the steady-state PERG (SS-PERG). METHODS: SS-PERGs were recorded in response to black-white horizontal gratings (1.6 cycles/deg, 98% contrast, 15.63 reversals/s, LED display, 25 deg square field, 800 cd/sqm mean luminance) using skin electrodes. PERG and noise (± reference) signals were averaged over 1024 epochs (~ 2.2 min) and Fourier analyzed to retrieve SS-PERG amplitude and phase. SS-PERGs were split into 16 partial averages (samples) of 64 epochs each, and corresponding amplitudes and phases combined in polar coordinates to assess their dispersion (within-test variability)...
May 19, 2018: Documenta Ophthalmologica. Advances in Ophthalmology
https://www.readbyqxmd.com/read/29778864/plaque-morphology-as-predictor-of-late-plaque-events-in-patients-with-asymptomatic-type-2-diabetes-a-long-term-observational-study
#2
David A Halon, Idit Lavi, Ofra Barnett-Griness, Ronen Rubinshtein, Barak Zafrir, Mali Azencot, Basil S Lewis
OBJECTIVES: We used coronary computed tomography angiography (CTA) to determine plaque characteristics predicting individual late plaque events precipitating acute coronary syndromes (ACS) in a cohort of asymptomatic type 2 diabetic patients. BACKGROUND: In patients with coronary artery disease, CTA plaque characteristics may predict mid-term patient events. METHODS: Asymptomatic patients with diabetes 55 to 74 years of age with no history of coronary artery disease (N = 630) underwent baseline 64-slice CTA and detailed plaque level analysis...
May 11, 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29778032/primary-lymphoma-of-appendix-presenting-as-acute-appendicitis-a-case-report
#3
Giuseppe Caristo, Guido Griseri, Rosario Fornaro, Antonio Langone, Angelo Franceschi, Veronica Errigo, Cecilia Ferrari, Marco Casaccia, Marco Frascio, Angelo Schirru
INTRODUCTION: Primary lymphomas of appendix are extremely rare tumors. The incidence is 0.015% of all gastrointestinal lymphomas. PRESENTATION OF CASE: We present a case of a 75 year-old male patient who presented with acute abdominal pain in the lower right quadrant and fever. DISCUSSION: The patient received laparotomic appendectomy. The definitive histopathological examination revealed the presence of diffuse large cell B-lymphoma of the appendix...
May 7, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29777931/the-order-of-multiple-excited-state-proton-transfer-in-ternary-complex-of-norharmane-and-acetic-acids
#4
Yan-Zhen Ma, Yun-Fan Yang, Wei Shi, Yu-Zhi Song, Yong-Qing Li
Dolores Reyman et al. found the norharmane (9H-pyrido [3,4-b] indole) (NHM) and two acetic acid molecules can form the ternary complex (NHM-2A) in component solvent of dichloromethane and acetic acid via the hydrogen bond chain (J. Lumin. 2014, 148, 64). But the specific reaction details during this process were rarely reported. In this study, we will give an insight into the reasons which promote the occurrence of this reaction as well as its reaction order. The hydrogen bond enhancing behavior in first excited state (S1 ) is verified through the analysis of geometric configurations, infrared spectra, frontier molecular orbitals and potential energy curves...
May 9, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29777439/fecal-and-mucosa-associated-intestinal-microbiota-in-patients-with-diarrhea-predominant-irritable-bowel-syndrome
#5
Nitsan Maharshak, Yehuda Ringel, David Katibian, Ashley Lundqvist, R Balfour Sartor, Ian M Carroll, Tamar Ringel-Kulka
BACKGROUND: Irritable bowel syndrome (IBS) has been associated with changes in the intestinal microbiota. Only a few studies have explored differences in the mucosa-associated microbiota between IBS patients and healthy controls (HC). AIMS: To characterize and compare the microbiota in mucosal and fecal samples from carefully selected patients with IBS-D and HC. METHODS: The cohort was composed of 23 diarrhea-predominant IBS (IBS-D) patients and 24 HC...
May 17, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29777203/ginkgo-biloba-extracts-prevent-aortic-rupture-in-angiotensin-ii-infused-hypercholesterolemic-mice
#6
Xiao-Fang Huang, Song-Zhao Zhang, Ya-Yu You, Na Zhang, Hong Lu, Alan Daugherty, Xiao-Jie Xie
Abdominal aortic aneurysms (AAAs) are a chronic vascular disease characterized by pathological luminal dilation. Aortic rupture is the fatal consequence of AAAs. Ginkgo biloba extracts (GBEs), a natural herb extract widely used as food supplements, drugs, and cosmetics, has been reported to suppress development of calcium chloride-induced AAAs in mice. Calcium chloride-induced AAAs do not rupture, while angiotensin II (AngII)-induced AAAs in mice have high rate of aortic rupture, implicating potentially different mechanisms from calcium chloride-induced AAAs...
May 18, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29775160/site-specific-expression-of-amine-oxidases-in-breast-cancer-metastases
#7
Yoon Jin Cha, Woo Hee Jung, Ja Seung Koo
We aimed to evaluate the expression of amine oxidase-related proteins in metastatic breast cancer tissue and determine its clinical implication. A tissue microarray was constructed from a total of 126 metastatic breast tumors (31 bone metastases (24.6%), 36 brain metastases (28.6%), 11 liver metastases (8.7%), and 48 lung metastases (38.1%)). Immunohistochemical staining for amine oxidase-related proteins (lysyl oxidase, diamine oxidase, and monoamine oxidase A and B) was performed. In metastatic breast cancer tissue, lysyl oxidase ( p = 0...
May 2018: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29774610/high-performance-fluorescent-organic-light-emitting-diodes-utilizing-an-asymmetric-anthracene-derivative-as-an-electron-transporting-material
#8
Dongdong Zhang, Xiaozeng Song, Haoyuan Li, Minghan Cai, Zhengyang Bin, Tianyu Huang, Lian Duan
Fluorescent organic light-emitting diodes with thermally activated delayed fluorescent sensitizers (TSF-OLEDs) have aroused wide attention, the power efficiencies of which, however, are limited by the mutual exclusion of high electron-transport mobility and large triplet energy of electron-transporting materials (ETMs). Here, an asymmetric anthracene derivative with electronic properties manipulated by different side groups is developed as an ETM to promote TSF-OLED performances. Multiple intermolecular interactions are observed, leading to a kind of "cable-like packing" in the crystal and favoring the simultaneous realization of high electron-transporting mobility and good exciton-confinement ability, albeit the low triplet energy of the ETM...
May 17, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29774320/scoring-idiopathic-granulomatous-mastitis-an-effective-system-for-predicting-recurrence
#9
Tonguç Utku Yılmaz, Bora Gürel, Sertaç Ata Güler, Mehmet Ali Baran, Büşra Erşan, Seda Duman, Zafer Utkan
Objective: Idiopathic granulomatous mastitis is a breast disease without a definitive etiology. There are no definitive classifications, scoring systems or certitudes. The aim of this study is to define the factors related to the recurrence and design a scoring system. Material and Methods: Patients who were admitted to the general surgery department with symptoms of granulomatous mastitis were evaluated by ultrasonography and underwent antibiotic therapy. Granulomatous mastitis is diagnosed by core biopsy and treated with steroid therapy...
April 2018: European Journal of Breast Health
https://www.readbyqxmd.com/read/29774318/biological-subtypes-of-breast-cancer-and-sentinel-lymph-node-biopsy
#10
Muhammet Kadri Çolakoğlu, Erhan Güven, Gökhan Giray Akgül, Lütfi Doğan, Mehmet Ali Gülçelik
Objective: Breast cancer subtypes are used as prognostic and predictive factors considering the genomic profile of the disease. This study is designed to investigate the Sentinel Lymph Node (SLN) detection rate in breast cancer for different biological characteristics. Material and Methods: Patients on whom we performed the methylene blue method alone were named as Group I, radiocolloid substance method alone as Group II and both methylene blue and radiocolloid method as Group III...
April 2018: European Journal of Breast Health
https://www.readbyqxmd.com/read/29773652/stromal-gli-signaling-regulates-the-activity-and-differentiation-of-prostate-stem-and-progenitor-cells
#11
Qianjin Li, Omar A Alsaidan, Sumit Rai, Meng Wu, Huifeng Shen, Zanna Beharry, Luciana L Almada, Martin E Fernandez-Zapico, Lianchun Wang, Houjian Cai
Interactions between cells in the stroma and epithelium facilitate prostate stem cell activity and tissue regeneration capacity. Numerous molecular signal transduction pathways, including the induction of sonic hedgehog (Shh) to activate the Gli transcription factors, are known to mediate the crosstalk of these two cellular compartments. However, the details of how these signaling pathways regulate prostate stem and progenitor cell activity remain elusive. Here we demonstrate that while cell autonomous epithelial Shh-Gli signaling is essential to determine the expression levels of basal cell markers and the renewal potential of epithelial stem and progenitor cells, stromal Gli signaling regulates prostate stem and progenitor cell activity by increasing the number and size of prostate spheroids in vitro...
May 17, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29773414/hypofractionated-whole-breast-irradiation-with-or-without-boost-in-elderly-patients-clinical-evaluation-of-an-italian-experience
#12
Maria Carmen De Santis, Francesca Bonfantini, Francesca Di Salvo, Alba Fiorentino, Michela Dispinzieri, Mariangela Caputo, Serena Di Cosimo, Gabriella Mariani, Massimiliano Gennaro, Vito Cosentino, Milena Sant, Emanuele Pignoli, Riccardo Valdagni, Laura Lozza
PURPOSE: To examine local control, disease-free survival (DFS), and toxicity in elderly (≥ 65 years) breast cancer patients treated with hypofractionated radiotherapy (hypo-RT) with or without a boost to the tumor bed. PATIENTS AND METHODS: The study was conducted on 752 patients treated from April 2009 to February 2017. Patients received 42.4 Gy in 16 daily fractions (2.65 Gy per fraction). A boost was only administered in cases of grade 3 primary tumor and close or positive margins...
April 22, 2018: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29773228/changes-in-mucins-and-matrix-metalloproteases-in-the-endometrium-of-early-pregnant-alpacas-vicugna-pacos
#13
Daniela E Barraza, Renato Zampini, Silvana A Apichela, Joel I Pacheco, Martin E Argañaraz
South American Camelids (SAC) have unique reproductive features, one of which is that 98% of the pregnancies develop in the left uterine horn. Furthermore, early pregnancy is an uncharacterized process in these species, especially in regard to the ultrastructural, biochemical and genetic changes that the uterine epithelial surface undergoes to allow embryo implantation. The present study describes the uterine horn luminal surface and the characteristics of the mucinous glycocalyx in non-pregnant and early pregnant (15 days) female alpacas...
May 14, 2018: Acta Histochemica
https://www.readbyqxmd.com/read/29772837/conventional-pathology-versus-gene-signatures-for-assessing-luminal-a-and-b-type-breast-cancers-results-of-a-prospective-cohort-study
#14
Julia E C van Steenhoven, Anne Kuijer, Paul J van Diest, Joost M van Gorp, Marieke Straver, Sjoerd G Elias, Jelle Wesseling, Emiel Rutgers, Johanna N H Timmer-Bonte, Peter Nieboer, Tineke J Smilde, Alex Imholz, Charlotte F J M Blanken, Sabine Siesling, Thijs van Dalen
In this study, in estrogen receptor positive (ER+) early stage breast cancer patients who were considered candidates for 70-gene signature (70-GS, "MammaPrint") use, we compared molecular subtyping (MS) based on the previously validated 80-gene signature (80-GS, "BluePrint") versus surrogate pathological subtyping (PS). Between 1 January 2013 and 31 December 2015, 595 clinical intermediate risk ER+ early stage breast cancer patients were enrolled. Hormone receptor (HR) and HER2 receptor status were determined by conventional pathology using immunohistochemistry (IHC) and fluorescent in situ hybridization (FISH)...
May 17, 2018: Genes
https://www.readbyqxmd.com/read/29771902/the-impact-of-different-tumour-subtypes-on-management-and-survival-of-new-zealand-women-with-stage-i-iii-breast-cancer
#15
Ross Lawrenson, Chunhuan Lao, Ian Campbell, Vernon Harvey, Sanjeewa Seneviratne, Mark Elwood, Diana Sarfati, Marion Kuper-Hommel
AIMS: This study aims to describe the prevalence and characteristics of the different ER/PR/HER2 subtypes in New Zealand women with breast cancer, and to explore their treatment and outcomes. METHODS: This study included women diagnosed with Stage I-III breast cancer between January 2006 and May 2013, recorded in the combined Waikato and Auckland Breast Cancer Registers, and with complete data on their ER, PR and HER2 status. Five ER/PR/HER2 phenotypes were classified...
May 18, 2018: New Zealand Medical Journal
https://www.readbyqxmd.com/read/29770795/cytokines-as-biomarkers-of-inflammatory-response-after-open-versus-endovascular-repair-of-abdominal-aortic-aneurysms-a-systematic-review
#16
REVIEW
Diamantis I Tsilimigras, Fragiska Sigala, Georgios Karaolanis, Ioannis Ntanasis-Stathopoulos, Eleftherios Spartalis, Michael Spartalis, Nikolaos Patelis, Alexandros Papalampros, Chandler Long, Demetrios Moris
The repair of an abdominal aortic aneurysm (AAA) is a high-risk surgical procedure related to hormonal and metabolic stress-related response with an ensuing activation of the inflammatory cascade. In contrast to open repair (OR), endovascular aortic aneurysm repair (EVAR) seems to decrease the postoperative stress by offering less extensive incisions, dissection, and tissue manipulation. However, these beneficial effects may be offset by the release of cytokines and arachidonic acid metabolites during intra-luminal manipulation of the thrombus using catheters in endovascular repair, resulting in systemic inflammatory response (SIR), which is clinically called post-implantation syndrome...
May 17, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29770686/color-tunable-and-high-efficiency-dye-encapsulated-metal-organic-framework-mof-composites-used-for-smart-white-leds
#17
Wenwei Chen, Yixi Zhuang, Le Wang, Ying Lv, Jianbin Liu, Tian-Liang Zhou, Rong-Jun Xie
Luminescent MOFs (typically dye-encapsulated MOFs) are considered as one kind of interesting down-conversion materials for white LEDs, but their quantum efficiency is not sufficiency and thus needs to be significantly enhanced for practical applications. In this study, we successfully synthesized a series of Rh@bio-MOF-1 (Rh = rhodamine) with an internal quantum efficiency as high as ~79% via a solvothermal reaction followed by cation exchanges. The high efficiency of the Rh@bio-MOF-1 composites was attributable to the high intrinsic luminescent efficiency of the selected Rh dyes, the confinement effect in the bio-MOF-1 host as well as the uniform particle morphology...
May 17, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29769564/the-opto-locomotor-reflex-as-a-tool-to-measure-sensitivity-to-moving-random-dot-patterns-in-mice
#18
L A M H Kirkels, W Zhang, M N Havenith, P Tiesinga, J Glennon, R J A van Wezel, J Duijnhouwer
We designed a method to quantify mice visual function by measuring reflexive opto-locomotor responses. Mice were placed on a Styrofoam ball at the center of a large dome on the inside of which we projected moving random dot patterns. Because we fixed the heads of the mice in space and the ball was floating on pressurized air, locomotion of the mice was translated to rotation of the ball, which we registered. Sudden onsets of rightward or leftward moving patterns caused the mice to reflexively change their running direction...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29769502/variation-of-luminal-diameter-of-the-right-principal-bronchus-in-different-age-and-sex-group-of-bangladeshi-cadaver
#19
N Nawshin, S Mannan, M F Kamal, E Z Epsi, Z Ahmed
The respiratory system is involved in the intake and exchange of oxygen and carbon dioxide between an organism and the environment which is essential for human survival. The bronchial tree includes the trachea, right and left principal bronchi and their branching upto alveoli. A common medical problem with the respiratory tract is acute respiratory tract infection (ARI) which is the leading killer of children under five. The aim of the present study was to find out the variation of the luminal diameter of right principal bronchus in Bangladeshi people...
April 2018: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/29768499/a-fixable-probe-for-visualizing-flagella-and-plasma-membranes-of-the-african-trypanosome
#20
Justin Wiedeman, Kojo Mensa-Wilmot
The protozoan Trypanosoma brucei sp. cause diseases in humans and animals. Studies of T. brucei cell biology have revealed unique features, such as major endocytic events being limited to a single region, and mitochondrial genome segregation mediated via basal bodies. Further understanding of trypanosome cell biology can be facilitated with super-resolution fluorescence microscopy. Lack of a plasma membrane probe for fixed trypanosomes remains a persistent problem in need of a working solution. Herein, we report protocols developed using mCLING in super-resolution structured illumination fluorescence microscopy (SR-SIM)...
2018: PloS One
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