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https://www.readbyqxmd.com/read/28449114/neuro-symbolic-representation-learning-on-biological-knowledge-graphs
#1
Mona Alshahrani, Mohammed Asif Khan, Omar Maddouri, Akira R Kinjo, Núria Queralt-Rosinach, Robert Hoehndorf
Motivation: Biological data and knowledge bases increasingly rely on Semantic Web technologies and the use of knowledge graphs for data integration, retrieval and federated queries. In the past years, feature learning methods that are applicable to graph-structured data are becoming available, but have not yet widely been applied and evaluated on structured biological knowledge. Results: We develop a novel method for feature learning on biological knowledge graphs...
April 25, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28440794/se-sad-serial-femtosecond-crystallography-datasets-from-selenobiotinyl-streptavidin
#2
Chun Hong Yoon, Hasan DeMirci, Raymond G Sierra, E Han Dao, Radman Ahmadi, Fulya Aksit, Andrew L Aquila, Alexander Batyuk, Halilibrahim Ciftci, Serge Guillet, Matt J Hayes, Brandon Hayes, Thomas J Lane, Meng Liang, Ulf Lundström, Jason E Koglin, Paul Mgbam, Yashas Rao, Theodore Rendahl, Evan Rodriguez, Lindsey Zhang, Soichi Wakatsuki, Sébastien Boutet, James M Holton, Mark S Hunter
We provide a detailed description of selenobiotinyl-streptavidin (Se-B SA) co-crystal datasets recorded using the Coherent X-ray Imaging (CXI) instrument at the Linac Coherent Light Source (LCLS) for selenium single-wavelength anomalous diffraction (Se-SAD) structure determination. Se-B SA was chosen as the model system for its high affinity between biotin and streptavidin where the sulfur atom in the biotin molecule (C10H16N2O3S) is substituted with selenium. The dataset was collected at three different transmissions (100, 50, and 10%) using a serial sample chamber setup which allows for two sample chambers, a front chamber and a back chamber, to operate simultaneously...
April 25, 2017: Scientific Data
https://www.readbyqxmd.com/read/28350969/mechanisms-of-spontaneous-pacing-sa-nodal-cells-neonatal-cardiomyocytes-and-human-stem-cell-derived-cardiomyocytes
#3
Martin Morad, Xiaohua Zhang
The sino-atrial node is the primary site from which the mammalian heart is paced, but the mechanisms underlying the pacemaking still remain clouded. It is generally believed that the hyperpolarization-activated current I<sub><i>f</i></sub>, encoded by Hyperpolarization-activated cyclic nucleotide-gated (HCN) genes, contributes significantly to pacing, which in tandem with inward current generated by efflux of Ca<sup>2+</sup> via the Na<sup>+</sup>-Ca<sup>2+</sup> exchanger (NCX), resulting from the released Ca<sup>2+</sup>, mediates the diastolic depolarization...
March 28, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28322470/anti-inflammatory-and-antioxidant-actions-of-copaiba-oil-are-related-to-liver-cell-modifications-in-arthritic-rats
#4
Cristiane V de Castro Ghizoni, Ana P Arssufi Ames, Osmar A Lameira, Ciomar A Bersani Amado, Anacharis B de Sá Nakanishi, Lívia Bracht, Maria R Marçal Natali, Rosane M Peralta, Adelar Bracht, Jurandir F Comar
The present study investigated the action of copaiba oil (Copaifera reticulata) on the systemic inflammation, oxidative status and liver cell metabolism of rats with adjuvant-induced arthritis. The later is an experimental autoimmune pathology that shares many features with the human rheumatoid arthritis. Holtzman rats were distributed into the following groups: control (healthy) rats; control rats treated with copaiba oil at the doses of 0.58 and 1.15 g · Kg(-1) , arthritic rats, and arthritic rats treated with copaiba oil (0...
March 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28240519/triple-negative-breast-cancer-at-the-university-hospital-mohammed-vi-%C3%A2-oujda
#5
o Al jarroudi, n Abda, Sa Brahmi, S Afqir
Introduction: The triple-negative breast cancer (TNBC), defined by the absence of receptors to oestrogen and progesterone and no histochemical expression of human epidermal receptor -2, is associated with a particularly aggressive behavior. The aim of our study was to determine the clinico-pathological, therapeutic and prognostic features associated with this type of breast cancer in Morocco. Methods: A cohort retrospective study, spread over 3 years, was conducted of 116 breast cancer patients, diagnosed between January 2009 and December 2011 at the Regional Center of Oncology...
January 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28237016/the-situation-awareness-weighted-network-sawn-model-and-method-theory-and-application
#6
Alexander Kalloniatis, Irena Ali, Timothy Neville, Phuong La, Iain Macleod, Mathew Zuparic, Elizabeth Kohn
We introduce a novel model and associated data collection method to examine how a distributed organisation of military staff who feed a Common Operating Picture (COP) generates Situation Awareness (SA), a critical component in organisational performance. The proposed empirically derived Situation Awareness Weighted Network (SAWN) model draws on two scientific models of SA, by Endsley involving perception, comprehension and projection, and by Stanton et al. positing that SA exists across a social and semantic network of people and information objects in activities connected across a set of tasks...
May 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28229271/new-pet-ct-criterion-for-nodal-staging-in-non-small-cell-lung-cancer-measurement-of-the-ratio-of-section-area-of-standard-uptake-values-%C3%A2-2-5-lymph-node-section-area
#7
Yoshitaro Saito, Kazuhiro Imai, Koichi Ishiyama, Hajime Saito, Satoru Motoyama, Yusuke Sato, Hayato Konno, Satoshi Fujishima, Manabu Hashimoto, Yoshihiro Minamiya
BACKGROUND: The aim of the present study was to use surgical and histological results to develop a simple noninvasive technique for improving nodal staging using preoperative PET/CT in patients with resectable non-small cell lung cancer (NSCLC). METHODS: Preoperative PET/CT findings (163 patients) and pathological diagnoses after surgical resection were evaluated. Using PET/CT images, lymph node section area (SA), the maximum standardized uptake value (SUVmax), SA of SUV ≥2...
February 23, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28205094/knockdown-of-cardiac-kir3-1-gene-with-sirna-can-improve-bradycardia-in-an-experimental-sinus-bradycardia-rat-model
#8
Yang Li, Xiaodan Fu, Zhi Zhang, Bo Yu
The objective of this study was to explore whether the inhibition of potassium inwardly rectifying channel (Kir3.1) with short interfering RNA (siRNA) can improve bradycardia in an experimental sinus bradycardia rat model. 54 Sprague Dawley (SD) rats were randomly divided into three groups: experimental group, control group, and sham group. Sinus bradycardia model was established in SD rats through chemical ablation of sinoatrial (SA) node with 20% formaldehyde. Variations of Kir3.1 expression at mRNA and protein level were examined with qPCR and Western blotting...
February 15, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28196610/endobronchial-ultrasound-guided-transbronchial-needle-aspiration-for-nodal-staging-in-non-small-cell-lung-carcinoma
#9
D Coutinho, A Oliveira, S Campainha, S Neves, M Guerra, J Miranda, A Furtado, D Tente, A Sanches, J Almeida, J Moura E Sá
INTRODUCTION: Lung cancer staging has recently evolved to include endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) for nodal assessment. AIM: Evaluate the performance and safety of EBUS-TBNA as a key component of a staging algorithm for non-small cell lung carcinoma (NSCLC) and as a single investigation technique for diagnosis and staging of NSCLC. METHODS: Patients undergoing EBUS-TBNA for NSCLC staging at our institution between April 1, 2010 and December 31, 2014 were consecutively included with prospective data collection...
February 9, 2017: Revista Portuguesa de Pneumologia
https://www.readbyqxmd.com/read/28187776/mycobacterium-bovis-in-a-european-bison-bison-bonasus-raises-concerns-about-tuberculosis-in-brazilian-captive-wildlife-populations-a-case-report
#10
Cristina Kraemer Zimpel, Juliana Sperotto Brum, Antônio Francisco de Souza Filho, Alexander Welker Biondo, João Henrique Perotta, Cristina Corsi Dib, Marcelo Bonat, José Soares Ferreira Neto, Paulo Eduardo Brandão, Marcos Bryan Heinemann, Ana Marcia Sa Guimaraes
BACKGROUND: Tuberculosis caused by Mycobacterium bovis is an important worldwide zoonosis and has been reported to cause clinical disease in several animal species, including captive wildlife. This report describes a case of M. bovis infection in a European bison from a Brazilian zoo and compiles a number of literature reports that raise concern regarding tuberculosis among captive wildlife in Brazil. CASE PRESENTATION: A 13 year-old captive-born male bison (Bison bonasus) from a Brazilian zoo began presenting weight loss, diarrhea and respiratory symptoms, which inevitably led to his death...
February 10, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28187493/recurrence-of-hepatocellular-carcinoma-after-liver-transplantation-is-there-a-place-for-resection
#11
Elena Fernandez-Sevilla, Marc-Antoine Allard, Jasmijn Selten, Nicolas Golse, Eric Vibert, Antonio Sa Cunha, Daniel Cherqui, Denis Castaing, René Adam
Recurrence of hepatocellular carcinoma (HCC) after liver transplantation (LT) is widely considered as a terminal condition. Therefore, the role of surgery is uncertain in this case. The purpose of this study was to identify the prognostic factors of survival after post-LT HCC recurrence and to evaluate the impact of surgery in this setting. All patients transplanted for HCC between 1991 and 2013 in a single institution and who further developed a post-LT recurrence were included in this study. Univariate and multivariate analyses were performed to identify factors affecting postrecurrence survival...
April 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28180046/risk-of-delayed-lymph-node-metastasis-in-clinically-n0-esthesioneuroblastoma
#12
Justin G Peacock, William S Harmsen, Michael J Link, Jamie J Van Gompel, Caterina Giannini, Kerry D Olsen, Yolanda I Garces, Michelle A Neben Wittich, Daniel J Ma, Sean S Park, Robert L Foote
Objective To determine both the rate of delayed cervical lymph node metastasis in patients with esthesioneuroblastoma (ENB) and a clinically N0 untreated neck and the effectiveness of salvage treatment. Design Retrospective review. Setting Tertiary academic medical center. Participants All patients from January 1, 1965, to December 31, 2010, who received definitive treatment for ENB. Main Outcome Measures The study involved 52 patients: 27 (52%) patients underwent surgery and adjuvant radiotherapy (SART) to the primary site only and 25 (48%) underwent surgery alone (SA) as treatment of the primary site, without elective neck dissection...
February 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28168848/ora59-and-ein3-interaction-couples-jasmonate-ethylene-synergistic-action-to-antagonistic-salicylic-acid-regulation-of-pdf-expression
#13
Xiang He, Jishan Jiang, Chang-Quan Wang, Katayoon Dehesh
Hormonal crosstalk is central for tailoring plant responses to the nature of challenges encountered. The role of antagonism between the two major defense hormones, salicylic acid (SA) and jasmonic acid (JA), and modulation of this interplay by ethylene (ET) in favor of JA signaling pathway in plant stress responses is well recognized, but the underlying mechanism is not fully understood. Here, we show the opposing function of two transcription factors, ethylene insensitive3 (EIN3) and EIN3-Like1 (EIL1), in SA-mediated suppression and JA-mediated activation of PLANT DEFENSIN1...
April 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28076478/liver-transplantation-for-carcinoma-hepatocellular-in-s%C3%A3-o-paulo-414-cases-by-the-milan-brazil-criteria
#14
COMPARATIVE STUDY
Gustavo Pilotto D Sá, Fernando P P Vicentine, Alcides A Salzedas-Netto, Carla Adriana Loureiro de Matos, Luiz R Romero, Dario F P Tejada, Paulo Celso Bosco Massarollo, Gaspar J Lopes-Filho, Adriano M Gonzalez
Background: The criterion of Milan (CM) has been used as standard for indication of liver transplantation (LTx) for hepatocellular carcinoma (HCC) worldwide for nearly 20 years. Several centers have adopted criteria expanded in order to increase the number of patients eligible to liver transplantation, while maintaining good survival rates. In Brazil, since 2006, the criterion of Milan/Brazil (CMB), which disregards nodules <2 cm, is adopted, including patients with a higher number of small nodules...
November 2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
https://www.readbyqxmd.com/read/28060689/-schwannoma-of-the-upper-extremity-retrospective-analysis-of-17-cases
#15
Ângelo Sá, Leandro Nobre Azevedo, Luísa Cunha
INTRODUCTION: Schwannoma or neurilemmoma is a benign peripheric nerve tumor that usually presents as a slow growing single lesion; it has origin in Schwann cells proliferation. Although it represents a small percentage of the benign tumors of the upper arm, it is the most frequent of neural origin. We present a retrospective study of upper limb schwannomas; our aim is establish the appropriate preoperative approach, to recognise the efficiency of the treatment and the pos-operative follow-up...
September 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28057794/purinergic-signaling-in-the-cardiovascular-system
#16
REVIEW
Geoffrey Burnstock
There is nervous control of the heart by ATP as a cotransmitter in sympathetic, parasympathetic, and sensory-motor nerves, as well as in intracardiac neurons. Centers in the brain control heart activities and vagal cardiovascular reflexes involve purines. Adenine nucleotides and nucleosides act on purinoceptors on cardiomyocytes, AV and SA nodes, cardiac fibroblasts, and coronary blood vessels. Vascular tone is controlled by a dual mechanism. ATP, released from perivascular sympathetic nerves, causes vasoconstriction largely via P2X1 receptors...
January 6, 2017: Circulation Research
https://www.readbyqxmd.com/read/27978881/-reconstruction-with-free-jejuna-flap-for-the-defect-after-removal-of-hypopharyngeal-and-cervical-esophageal-caneer-clinical-analyses-of-103-cases
#17
W Xu, Z H Lyu, J D Zou, J K Ma, N Sa, H Y Cao
Objective: To report our experience in reconstruction with free jejunal flap for circumferential defect following resection of hypopharygeal and cervical esophageal carcinoma. Methods: A retrospective analysis was conducted to evaluate the outcomes of reconstruction with free jejunal flaps for circumferential defects in 103 patients treated from Aug 2008 to Mar 2015. Among them, 84 were hypopharyngeal carcinoma and 19 were cervical esophageal carcinoma; 31 patients had total pharyngolaryngectomy, 70 had total pharyngolaryngectomy and cervical esophagectomy and 2 had laryngeal preservation...
December 7, 2016: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/27941212/coexistence-of-systemic-sclerosis-and-sarcoidosis
#18
Sabina Godziszewska, Małgorzata Widuchowska, Magdalena Kopeć-Mędrek, Eugeniusz Józef Kucharz
Coexistence of systemic sclerosis (SSc) and sarcoidosis (SA) is rarely reported; 21 cases only were reported in the English medical literature before 2011. It is suggested that low incidence of overlap syndrome of SSc with SA is resulted from different immune mechanisms involved in pathogenesis of the diseases. In SSc patients, a role of Th2 lymphocytes is suggested while in patients with SA such role is attributed to Th1 lymphocytes. The paper presents a 47-year-old woman suffering from SSc for over 6 years...
2016: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/27928598/the-role-of-adjuvant-therapy-after-r0-resection-for-patients-with-intrahepatic-and-perihilar-cholangiocarcinomas
#19
Young Saing Kim, Sung Yong Oh, Se-Il Go, Jung-Hun Kang, Inkeun Park, Haa-Na Song, Jun Ho Ji, In Gyu Hwang, Joung-Soon Jang
PURPOSE: There is still debated regarding the optimal treatment strategy for cholangiocarcinoma (CC) after curative resection. The aim of this study was to analyze the role of adjuvant therapy in R0-resected intrahepatic and perihilar CCs. METHODS: We retrospectively reviewed the patients who underwent R0 resection for intrahepatic and perihilar CCs between January 2001 and December 2013 at six tertiary medical centers; adjuvant therapy consisted of chemotherapy (CT), chemoradiotherapy (CRT), or radiotherapy (RT)...
December 7, 2016: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/27909513/assessment-of-sinoatrial-node-function-in-patients-with-persistent-and-long-standing-persistent-forms-of-atrial-fibrillation-after-maze-iii-procedure-combined-with-mitral-valve-operation
#20
Kulikov Aleksei A, Bokeria Leo A
RESEARCH OBJECTIVE: Assessment of sinoatrial node function after Maze III procedure combined with a mitral valve operation. METHODS: 100 patients were included in the research with persistent and long-standing persistent forms of atrial fibrillation (AF) and need of operative treatment concerning valve disease. The following preoperative preparation methods were executed to all patients: Electrocardiogram in 12 standard assignments;Two-dimensional echocardiographic with assessment of systolic and diastolic functions of the left ventricle, size of the left atrium and grade of valve disease;Transesophageal echocardiography for exclusion of blood clots in the left atrium and left atrial appendage;Coronary angiography for exclusion of coronary heart disease;Computer tomography for examination of cardiac chambers and anatomic characteristics of pulmonary veins...
June 2016: Journal of Atrial Fibrillation
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