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https://www.readbyqxmd.com/read/28342866/the-t47d-cell-line-is-an-ideal-experimental-model-to-elucidate-the-progesterone-specific-effects-of-a-luminal-a-subtype-of-breast-cancer
#1
Sungryul Yu, Taemook Kim, Kyung Hyun Yoo, Keunsoo Kang
Cell lines are often used as in vitro tools to mimic certain types of in vivo system; several cell lines, including MCF-7 and T47D, have been widely used in breast cancer studies without investigating the cell lines' characteristics. In this study, we compared the genome-wide binding profiles of ERα, PR, and P300, and the gene expression changes between MCF-7 and T47D cell lines that represent the luminal A subtype of breast cancer. Surprisingly, several thousand genes were differentially expressed under estrogenic condition...
March 22, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28340394/assessment-of-engineered-surfaces-roughness-by-high-resolution-3d-sem-photogrammetry
#2
L C Gontard, J D López-Castro, L González-Rovira, J M Vázquez-Martínez, F M Varela-Feria, M Marcos, J J Calvino
We describe a methodology to obtain three-dimensional models of engineered surfaces using scanning electron microscopy and multi-view photogrammetry (3DSEM). For the reconstruction of the 3D models of the surfaces we used freeware available in the cloud. The method was applied to study the surface roughness of metallic samples patterned with parallel grooves by means of laser. The results are compared with measurements obtained using stylus profilometry (PR) and SEM stereo-photogrammetry (SP). The application of 3DSEM is more time demanding than PR or SP, but it provides a more accurate representation of the surfaces...
March 7, 2017: Ultramicroscopy
https://www.readbyqxmd.com/read/28339751/changes-in-secondhand-smoke-exposure-after-smoke-free-legislation-spain-2006-2011
#3
Esteve Fernández, Marcela Fu, Mónica Pérez-Ríos, Anna Schiaffino, Xisca Sureda, María J López
Introduction: In 2011, the Spanish partial smoke-free legislation was extended to affect all enclosed settings, including hospitality venues and selected outdoor areas. This study evaluated the change in self-reported exposure to secondhand smoke among the adult, non-smoking population. Methods: Two cross-sectional surveys were conducted on nationally representative samples of the adult (≥18 years) non-smoking Spanish population. One was conducted in 2006 (6 months after the first ban) and the other in 2011, 6 months after the new ban was implemented...
February 28, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28339545/left-atrial-anatomy-atrial-fibrillation-burden-and-p-wave-duration-relationships-and-predictors-for-single-procedure-success-after-pulmonary-vein-isolation
#4
Sven Knecht, Maurice Pradella, Tobias Reichlin, Aline Mühl, Matthias Bossard, Bram Stieltjes, David Conen, Jens Bremerich, Stefan Osswald, Michael Kühne, Christian Sticherling
Aims: Atrial fibrillation (AF) is associated with changes in left atrial (LA) volume, but the relationship between LA size, AF burden, and electrical conduction behaviour is still uncertain. The aim of this study was to quantify the association and impact of these parameters on the single-procedure outcome after circumferential antral ablation for pulmonary vein isolation. Methods and results: Left atrial assessment was performed in 129 consecutive patients using pre-procedural imaging in three dimensions (sphericity, indexed volume), two dimensions (diameters), and from echocardiography in one dimension (long axis)...
December 22, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339241/disordered-route-to-the-coulomb-quantum-spin-liquid-random-transverse-fields-on-spin-ice-in-pr_-2-zr_-2-o_-7
#5
J-J Wen, S M Koohpayeh, K A Ross, B A Trump, T M McQueen, K Kimura, S Nakatsuji, Y Qiu, D M Pajerowski, J R D Copley, C L Broholm
Inelastic neutron scattering reveals a broad continuum of excitations in Pr_{2}Zr_{2}O_{7}, the temperature and magnetic field dependence of which indicate a continuous distribution of quenched transverse fields (Δ) acting on the non-Kramers Pr^{3+} crystal field ground state doublets. Spin-ice correlations are apparent within 0.2 meV of the Zeeman energy. A random phase approximation provides an excellent account of the data with a transverse field distribution ρ(Δ)∝(Δ^{2}+Γ^{2})^{-1}, where Γ=0.27(1)  meV...
March 10, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28339144/australian-and-new-zealand-pulmonary-rehabilitation-guidelines
#6
Jennifer A Alison, Zoe J McKeough, Kylie Johnston, Renae J McNamara, Lissa M Spencer, Sue C Jenkins, Catherine J Hill, Vanessa M McDonald, Peter Frith, Paul Cafarella, Michelle Brooke, Helen L Cameron-Tucker, Sarah Candy, Nola Cecins, Andrew S L Chan, Marita T Dale, Leona M Dowman, Catherine Granger, Simon Halloran, Peter Jung, Annemarie L Lee, Regina Leung, Tamara Matulick, Christian Osadnik, Mary Roberts, James Walsh, Sally Wootton, Anne E Holland
BACKGROUND AND OBJECTIVE: The aim of the Pulmonary Rehabilitation Guidelines (Guidelines) is to provide evidence-based recommendations for the practice of pulmonary rehabilitation (PR) specific to Australian and New Zealand healthcare contexts. METHODS: The Guideline methodology adhered to the Appraisal of Guidelines for Research and Evaluation (AGREE) II criteria. Nine key questions were constructed in accordance with the PICO (Population, Intervention, Comparator, Outcome) format and reviewed by a COPD consumer group for appropriateness...
March 24, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28338653/breast-ductal-carcinoma-in-situ-carry-mutational-driver-events-representative-of-invasive-breast-cancer
#7
Jia-Min B Pang, Peter Savas, Andrew P Fellowes, Gisela Mir Arnau, Tanjina Kader, Ravikiran Vedururu, Chelsee Hewitt, Elena A Takano, David J Byrne, David Yh Choong, Ewan Ka Millar, C Soon Lee, Sandra A O'Toole, Sunil R Lakhani, Margaret C Cummings, G Bruce Mann, Ian G Campbell, Alexander Dobrovic, Sherene Loi, Kylie L Gorringe, Stephen B Fox
The spectrum of genomic alterations in ductal carcinoma in situ (DCIS) is relatively unexplored, but is likely to provide useful insights into its biology, its progression to invasive carcinoma and the risk of recurrence. DCIS (n=20) with a range of phenotypes was assessed by massively parallel sequencing for mutations and copy number alterations and variants validated by Sanger sequencing. PIK3CA mutations were identified in 11/20 (55%), TP53 mutations in 6/20 (30%), and GATA3 mutations in 9/20 (45%). Screening an additional 91 cases for GATA3 mutations identified a final frequency of 27% (30/111), with a high proportion of missense variants (8/30)...
March 24, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28337559/dietary-fiber-intake-and-risk-of-breast-cancer-defined-by-estrogen-and-progesterone-receptor-status-the-japan-public-health-center-based-prospective-study
#8
Saki Narita, Manami Inoue, Eiko Saito, Sarah K Abe, Norie Sawada, Junko Ishihara, Motoki Iwasaki, Taiki Yamaji, Taichi Shimazu, Shizuka Sasazuki, Kenji Shibuya, Shoichiro Tsugane
PURPOSE: Epidemiological studies have suggested a protective effect of dietary fiber intake on breast cancer risk while the results have been inconsistent. Our study aimed to investigate the association between dietary fiber intake and breast cancer risk and to explore whether this association is modified by reproductive factors and hormone receptor status of the tumor. METHODS: A total of 44,444 women aged 45 to 74 years from the Japan Public Health Center-based Prospective Study were included in analyses...
March 23, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28335679/puerarin-attenuates-renal-fibrosis-by-reducing-oxidative-stress-induced-epithelial-cell-apoptosis-via-mapk-signal-pathways-in-vivo-and-in-vitro
#9
Xiangjun Zhou, Chen Bai, Xinbo Sun, Xiaoxin Gong, Yong Yang, Congbo Chen, Guang Shan, Qisheng Yao
Puerarin (PR) is an isoflavonoid isolated from the root of the plant Pueraria lobata and has been widely used in traditional Chinese herbal medicine for the treatment of various diseases. Oxidative stress and epithelial cell apoptosis play important roles in the renal fibrotic process. The present study aimed to determine whether or not PR inhibits renal fibrosis by reducing oxidative stress induced-epithelial cell apoptosis. In vivo, unilateral ureteral obstruction (UUO) induced renal fibrosis, and epithelial cell apoptosis...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28335347/the-dispersion-state-of-tangled-multi-walled-carbon-nanotubes-affects-their-cytotoxicity
#10
Chika Kuroda, Hisao Haniu, Kumiko Ajima, Manabu Tanaka, Atsushi Sobajima, Haruka Ishida, Tamotsu Tsukahara, Yoshikazu Matsuda, Kaoru Aoki, Hiroyuki Kato, Naoto Saito
The medical applications of carbon nanotubes (CNTs) have garnered much attention. However, evaluating the safety of CNTs remains difficult, and no consensus has been reached. Moreover, assessing the biosafety of multi-walled CNTs (MWCNTs), which can become tangled during manufacturing, is challenging because they do not readily disperse. We studied how the dispersion state of tangled MWCNTs affects their cytotoxicity, using three sonicators. Flotube 9110 (FT9110), tangled MWCNTs, were dispersed in two dispersants (fetal bovine serum and polysorbate 80) using a new type of sonicator (PR-1) and two conventional sonicators...
November 19, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28335101/prevalence-and-incidence-of-depression-during-interferon-based-antiviral-therapy-in-chronic-hepatitis-c-patients-in-the-republic-of-korea
#11
Joo Yeong Baeg, In Hee Kim, Seung Young Seo, Young Seok Kim, Eun Uk Jung, Junhyeon Cho, Jung Wha Chung, Eun Sun Jang, Jin Wook Kim, Sook-Hyang Jeong
Background/Aims: The association between depression and chronic hepatitis C virus (HCV) infection or pegylated interferon α and ribavirin therapy (PR therapy) has not been extensively studied in Korea. We aimed to clarify the prevalence of depression and its incidence during PR therapy in chronic hepatitis C (CHC) patients. Methods: In this prospective, multicenter study, 114 CHC patients were screened for depression using two self-reported scales, the Beck Depression Inventory-I (BDI-I) and the Hospital Anxiety and Depression scale (HADS)...
March 24, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28334724/incidence-of-multiple-sclerosis-in-puerto-rico-2014-a-population-based-study
#12
Angel Chinea, Carlos F Ríos-Bedoya, Cristina Rubi, Ivonne Vicente, Eduardo R Estades, Yatzka G Hernandez-Silvestrini
BACKGROUND: Multiple sclerosis (MS) affects millions of people worldwide. The estimates for MS incidence are difficult to obtain but are important for understanding MS etiology, developing prevention strategies, and service planning. This study is aimed at estimating the 2014 incidence of MS in Puerto Rico (PR). METHODS: The PR MS Foundation's registry was used as the data source. Neurologists, specialty pharmacies, MRI centers, health insurance companies, and the PR Department of Health identified MS cases missed by the registry...
March 24, 2017: Neuroepidemiology
https://www.readbyqxmd.com/read/28334337/birth-outcomes-among-adolescent-and-young-adult-cancer-survivors
#13
Chelsea Anderson, Stephanie M Engel, Jennifer E Mersereau, Kristin Z Black, William A Wood, Carey K Anders, Hazel B Nichols
Importance: Cancer diagnosis and treatment may adversely affect reproductive outcomes among female cancer survivors. Objective: To compare the birth outcomes of adolescent and young adult cancer survivors (AYA [diagnosed at ages 15-39 years]) with those of women without a cancer diagnosis. Design, Setting, and Participants: The North Carolina Central Cancer Registry (CCR) was used to identify female AYA cancer survivors diagnosed from January 2000 to December 2013; CCR records were linked to statewide birth certificate files from January 2000 to December 2014 to identify postdiagnosis live births to AYA survivors (n = 2598)...
March 23, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28333280/hcg-activates-the-erk1-2-mitogen-activated-protein-kinase-pathway-in-human-endometrial-stromal-cells-transiently-increasing-the-progesterone-receptor-and-regulating-genes-associated-with-endometrial-receptivity
#14
Alejandro Tapia-Pizarro, Sebastián Archiles, Felipe Argandoña, Cecilia Valencia, Keyla Zavaleta, María Cecilia Johnson, Reinaldo González-Ramos, Luigi Devoto
STUDY QUESTION: How does hCG signal in human endometrial stromal cells (ESCs) and what is its role in regulating ESC function? SUMMARY ANSWER: CG signaling in ESCs activates the extracellular signal-regulated protein kinases 1 and 2 (Erk1/2) pathway through exchange protein activated by cAMP (Epac) and transiently increases progesterone receptor (PR) transcript and protein expression and its transcriptional function. WHAT IS KNOWN ALREADY: hCG is one of the earliest embryo-derived secreted signals in the endometrium, which abundantly expresses LH/hCG receptors...
March 14, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28332866/comparing-cone-beam-computed-tomography-with-periapical-radiography-for-assessing-root-canal-obturation-in-vivo-using-microsurgical-findings-as-validation
#15
Dongzhe Song, Lan Zhang, Wei Zhou, Qinghua Zheng, Xingyu Duan, Xuedong Zhou, Dingming Huang
OBJECTIVES: The aim of this study was to verify whether there is a difference in the in vivo performance characteristics of CBCT and periapical radiography (PR) in assessing the apical extension of root canal obturation (RCO) and to evaluate the ability of CBCT in void detection using microsurgical findings as validation. METHODS: This study included 323 tooth roots that required surgical treatment and for which pre-existing periapical radiographs and CBCT images were available...
March 23, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/28332851/empathy-and-facial-expression-recognition-in-children-with-and-without-attention-deficit-hyperactivity-disorder-effects-of-stimulant-medication-on-empathic-skills-in-children-with-attention-deficit-hyperactivity-disorder
#16
Funda Gumustas, Ibrahim Yilmaz, Yasemin Yulaf, Sebla Gokce, Osman Sabuncuoglu
OBJECTIVE: The aim of this study was to compare children and adolescents with attention-deficit/hyperactivity disorder (ADHD) to healthy children and adolescents in terms of state and trait empathy and emotion expression recognition skills. The goal was also to determine whether there are changes in emotion recognition and empathy measures in children with ADHD after methylphenidate (MPH) treatment. METHODS: The research sample consisted of outpatient drug-naive children and adolescents between the age of 8 and 14 years (n = 65) with ADHD according to the Diagnostic and Statistical Manual of Mental Disorders, 4th ed...
March 23, 2017: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/28331925/biological-effects-of-ticagrelor-over-clopidogrel-in-patients-with-stable-coronary-artery-disease-and-chronic-obstructive-pulmonary-disease
#17
Gianluca Campo, Francesco Vieceli Dalla Sega, Rita Pavasini, Giorgio Aquila, Francesco Gallo, Francesca Fortini, Elisabetta Tonet, Paolo Cimaglia, Annamaria Del Franco, Gabriele Pestelli, Alessandro Pecoraro, Marco Contoli, Cristina Balla, Simone Biscaglia, Paola Rizzo, Roberto Ferrari
Patients with SCAD and concomitant COPD are at high risk of cardiovascular adverse events, due to chronic inflammation, responsible of endothelial dysfunction, oxidative stress and heightened platelet reactivity (PR). The objective of this randomised clinical trial was to test if ticagrelor is superior to clopidogrel in improving endothelial function in patients with stable coronary artery disease (SCAD) and concomitant chronic obstructive pulmonary disease (COPD). Forty-six patients with SCAD and COPD undergoing percutaneous coronary intervention (PCI) were randomly assigned to receive clopidogrel (n=23) or ticagrelor (n=23) on top of standard therapy with aspirin...
March 23, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28331834/ultrasound-guided-electrochemotherapy-for-the-treatment-of-a-clear-cell-thymoma-in-a-cat
#18
Enrico Pierluigi Spugnini, Francesco Menicagli, Michela Pettorali, Alfonso Baldi
A twelve-year-old male castrated domestic shorthair cat was presented for rapidly progressing respiratory distress. The cat was depressed, tachypneic and moderately responsive. Ultrasonography showed a mediastinal mass associated with a significant pleural effusion that needed tapping every five to seven days. Ultrasound guided biopsy yielded a diagnosis of clear cell thymoma upon histopathology. After complete staging procedures, the owner elected to treat the cat with electrochemotherapy (ECT) using systemic bleomycin...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/28331797/paradoxical-response-with-increased-tumor-necrosis-factor-%C3%AE-levels-to-anti-tuberculosis-treatment-in-a-patient-with-disseminated-tuberculosis
#19
Sho Watanabe, Yugo Kaneko, Hironori Kawamoto, Tomoki Maehara, Yuri Baba, Ikumi Fujisaki, Nayuta Saito, Kai Ryu, Aya Seki, Tsugumi Horikiri, Akira Kinoshita, Hiroshi Takeda, Keisuke Saito, Kazuyosi Kuwano
It has been reported that tuberculosis (TB) worsens after cessation of tumor necrosis factor-α inhibitors and starting anti-TB treatment. Little is known about the immunological pathogenesis of this paradoxical response (PR). We report the first case of a TB patient in whom PR occurred concurrently with elevation of circulating tumor necrosis factor-α (TNFα) levels. A 75-year-old woman, who had been treated with adalimumab for SAPHO syndrome, developed disseminated TB. Soon after administration of anti-TB treatment (isoniazid, rifampicin, pyrazinamide, and ethambutol), and after discontinuation of adalimumab, a PR occurred...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28331765/background-parenchymal-enhancement-and-fibroglandular-tissue-proportion-on-breast-mri-correlation-with-hormone-receptor-expression-and-molecular-subtypes-of-breast-cancer
#20
Mesut Öztürk, Ahmet Veysel Polat, Yurdanur Süllü, Leman Tomak, Ayfer Kamalı Polat
OBJECTIVE: To assess the relationship between background parenchymal enhancement (BPE) and fibroglandular tissue (FGT) proportion on breast magnetic resonance imaging (MRI) and hormone receptor expression and molecular subtypes in invasive breast cancer. MATERIALS AND METHODS: This retrospective study enrolled 75 breast cancer patients who underwent breast MRI before treatment. T1-weighted images were reviewed to determine the FGT proportion, and contrast-enhanced fat-suppressed T1-weighted images were reviewed to determine BPE...
January 2017: J Breast Health (2013)
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