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https://www.readbyqxmd.com/read/28434190/mixed-severity-fire-history-at-a-forest-grassland-ecotone-in-west-central-british-columbia-canada
#1
Jill E Harvey, Dan J Smith, Thomas T Veblen
This study examines spatially variable stand structure and fire-climate relationships at a low elevation forest-grassland ecotone in west central British Columbia, Canada. Fire history reconstructions were based on samples from 92 fire-scarred trees and stand demography from 27 plots collected over an area of about 7 km(2) . We documented historical chronologies of widespread fires and localized grassland fires between AD 1600 and 1900. Relationships between fire events, reconstructed values of the Palmer Drought Severity Index and annual precipitation were examined using superposed epoch and bivariate event analyses...
April 23, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28434029/health-of-midlife-and-older-adults-in-china-the-role-of-regional-economic-development-inequality-and-institutional-setting
#2
Xuejie Ding, Francesco C Billari, Stuart Gietel-Basten
OBJECTIVES: To document the association between economic development, income inequality, and health-related public infrastructure, and health outcomes among Chinese adults in midlife and older age. METHODS: We use a series of multi-level regression models with individual-level baseline data from the China Health and Retirement Longitudinal Survey (CHARLS). Provincial-level data are obtained both from official statistics and from CHARLS itself. Multi-level models are estimated with different subjective and objective health outcomes...
April 22, 2017: International Journal of Public Health
https://www.readbyqxmd.com/read/28433982/acute-on-chronic-gastrointestinal-bleeding-a-unique-clinical-entity
#3
Don C Rockey, Adam C Hafemeister, Joan S Reisch
Gastrointestinal bleeding is defined in temporal-spatial terms-as acute or chronic, and/or by its location in the gastrointestinal tract. Here, we define a distinct type of bleeding, which we have coined 'acute on chronic' gastrointestinal bleeding. We prospectively identified all patients who underwent endoscopic evaluation for any form of gastrointestinal bleeding at a University Hospital. Acute on chronic bleeding was defined as the presence of new symptoms or signs of acute bleeding in the setting of chronic bleeding, documented as iron deficiency anemia...
April 21, 2017: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/28433826/data-summarization-method-for-chronic-disease-tracking
#4
Dejan Aleksić, Petar Rajković, Dušan Vučković, Dragan Janković, Aleksandar Milenković
OBJECTIVES: Bearing in mind the rising prevalence of chronic medical conditions, the chronic disease management is one of the key features required by medical information systems used in primary healthcare. Our research group paid a particular attention to this specific area by offering a set of custom data collection forms and reports in order to improve medical professionals' daily routine. The main idea was to provide an overview of history for chronic diseases, which, as it seems, had not been properly supported in previous administrative workflows...
April 19, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28433804/crocin-attenuates-hemorrhagic-shock-induced-oxidative-stress-and-organ-injuries-in-rats
#5
Long Yang, Xiujuan Dong
We aimed to evaluate the effect of natural antioxidant crocin in alleviating hemorrhagic shock (HS)-induced organ damages. HS rats were treated with crocin during resuscitation. Mortality at 12h and 24h post resuscitation was documented. HS and resuscitation induced organ injuries, as characterized by elevated wet/dry ratio, quantitative assessment ratio, blood urea nitrogen, creatinine, aspartate aminotransferase and alanine aminotransferase, whereas rats received crocin treatment demonstrated improvements in all the above characteristics...
April 13, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28433761/a-glycoproteomic-approach-reveals-that-the-s-layer-glycoprotein-of-lactobacillus-kefiri-cidca-83111-is-o-and-n-glycosylated
#6
Gustavo J Cavallero, Mariano Malamud, Adriana C Casabuono, M de Los Ángeles Serradell, Alicia S Couto
In Gram-positive bacteria, such as lactic acid bacteria, general glycosylation systems have not been documented so far. The aim of this work was to characterize in detail the glycosylation of the S-layer protein of Lactobacillus kefiri CIDCA 83111. A reductive β-elimination treatment followed by anion exchange high performance liquid chromatography analysis was useful to characterize the O-glycosidic structures. MALDI-TOF mass spectrometry analysis confirmed the presence of oligosaccharides bearing from 5 to 8 glucose units carrying galacturonic acid...
April 19, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28433726/managing-responsible-antimicrobial-use-perspectives-across-the-healthcare-system
#7
REVIEW
Oliver J Dyar, Gianpiero Tebano, Céline Pulcini
BACKGROUND: Healthcare systems consist of building blocks. Shaping how these building blocks function and interact can promote responsible antimicrobial use, and this represents an important opportunity for managers at different points within healthcare systems to act upon. AIMS: To review real-world examples of how healthcare systems can promote responsible antimicrobial use, focusing on the role of governance and managers. SOURCES: We searched and reviewed existing literature and official documents, which mostly focused on antibiotics...
April 19, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28433699/egfr-mediated-apoptosis-via-stat3
#8
Nicole M Jackson, Brian P Ceresa
The Epidermal Growth Factor Receptor (EGFR) is a cell surface receptor with primary implications in cell growth in both normal and malignant tissue. Paradoxically, cell lines that hyperexpress the EGFR have been documented to undergo receptor-mediated apoptosis. The underlying mechanism by which EGF-induced apoptosis occurs however remains inexplicit. In an attempt to identify this mechanism, we assessed downstream effectors of EGFR in MDA-MB-468 cells during conditions of EGF-induced apoptosis. The effector assessment revealed STAT3 as a potential mediator of EGF-induced apoptosis...
April 19, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28433627/docosahexaenoic-acid-promotes-differentiation-of-photoreceptor-cells-in-three-dimensional-neural-retinas
#9
Eisuke Arai, Vipul M Parmar, Bhubanananda Sahu, Lindsay Perusek, Tanu Parmar, Akiko Maeda
Retinal tissues generated from human pluripotent stem cells can be an excellent tool for investigating pathogenesis of retinal diseases and developing new pharmacologic therapies. Moreover, patient derived retinal tissues could allow for retinal transplantation therapy for degenerative retinal diseases. However, obtaining retinal tissues with matured photoreceptor outer segments, which are essential for photoreceptor functions, is currently challenging. Here we investigated the effects of docosahexaenoic acid (DHA) for maturation of photoreceptor outer segments at the late stage and visual chromophore analog, 9-cis-retinal for the early stage of differentiation to three-dimensional (3D)-retinal tissues from human embryonic stem cells (hESCs), respectively...
April 19, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28433605/stability-of-patient-specific-features-of-altered-dna-replication-timing-in-xenografts-of-primary-human-acute-lymphoblastic-leukemia
#10
Takayo Sasaki, Juan Carlos Rivera-Mulia, Daniel Vera, Jared Zimmerman, Sunny Das, Michelle Padget, Naoto Nakamichi, Bill H Chang, Jeff Tyner, Brian J Druker, Andrew P Weng, Curt I Civin, Connie J Eaves, David M Gilbert
Genome-wide DNA replication timing (RT) profiles reflect the global 3D chromosome architecture of cells. They also provide a comprehensive and unique megabase-scale picture of the cellular epigenetic state. Thus normal differentiation involves reproducible changes in RT and transformation generally perturbs these, although the potential effects of altered RT on the properties of transformed cells remain largely unknown. A major challenge to interrogating these issues in human acute lymphoid leukemia (ALL) is the low proliferative activity of most of the cells, which may be further reduced in cryopreserved samples and difficult to overcome in vitro...
April 19, 2017: Experimental Hematology
https://www.readbyqxmd.com/read/28433591/-artificial-intelligence-applied-to-radiation-oncology
#11
J-E Bibault, A Burgun, P Giraud
Performing randomised comparative clinical trials in radiation oncology remains a challenge when new treatment modalities become available. One of the most recent examples is the lack of phase III trials demonstrating the superiority of intensity-modulated radiation therapy in most of its current indications. A new paradigm is developing that consists in the mining of large databases to answer clinical or translational issues. Beyond national databases (such as SEER or NCDB), that often lack the necessary level of details on the population studied or the treatments performed, electronic health records can be used to create detailed phenotypic profiles of any patients...
April 19, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28433505/chemotherapy-induces-alternative-transcription-and-splicing-facts-and-hopes-for-cancer-treatment
#12
Charles A Lambert, Nancy Garbacki, Alain C Colige
Alternative promoter usage, alternative splicing and alternative cleavage/polyadenylation (referred here as to alternative transcription and splicing) are main instruments to diversify the transcriptome from a limited set of genes. There is a good deal of evidence that chemotherapeutic drugs affect these processes, but the therapeutic incidence of these effects is poorly documented. The scope of this study is to review the impact of chemotherapy on alternative transcription and splicing and to discuss potential implications in cancer therapy...
April 19, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28433497/clostridium-difficile-toxin-glucosyltransferase-domains-in-complex-with-a-non-hydrolyzable-udp-glucose-analogue
#13
Joseph W Alvin, D Borden Lacy
Clostridium difficile is the leading cause of hospital-acquired diarrhea and pseudomembranous colitis worldwide. The organism produces two homologous toxins, TcdA and TcdB, which enter and disrupt host cell function by glucosylating and thereby inactivating key signalling molecules within the host. As a toxin-mediated disease, there has been a significant interest in identifying small molecule inhibitors of the toxins' glucosyltransferase activities. This study was initiated as part of an effort to identify the mode of inhibition for a small molecule inhibitor of glucosyltransferase activity called apigenin...
April 19, 2017: Journal of Structural Biology
https://www.readbyqxmd.com/read/28433469/delayed-effect-of-early-life-corticosterone-treatment-on-adult-anti-predator-behavior-in-a-common-passerine
#14
Jacquelyn K Grace, Laure Martin-Gousset, Frédéric Angelier
Acute, short-term effects of early-life stress and associated glucocorticoid upregulation on behavior are widely documented across vertebrates. However, the persistence and severity of these effects are largely unknown, especially through the adult stage and in wild species. Here, we investigate long-term effects of experimental post-natal increases in a circulating glucocorticoid on antipredator behavior in wild house sparrows (Passer domesticus) tested in captivity. We manipulate circulating corticosterone concentration in wild, free-living nestlings, transfer fledglings to captivity, and test juveniles and adults for two measures of antipredator behavior: evasiveness during a direct human encounter, and propensity to escape from a risky environment...
April 19, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28433464/electronic-synoptic-reporting-assessing-the-completeness-of-synoptic-and-narrative-reports-for-roux-en-y-gastric-bypass
#15
Ashley Vergis, Shannon E Stogryn, Michael J Mullan, Krista Hardy
BACKGROUND: Operative reporting is the foundation of surgical communication. The quality indicators (QIs) contained in these reports can be used to document the performance of processes that affect patient care and may afford quality assurance with improvement in healthcare. OBJECTIVES: We assessed the degree to which the electronic synoptic report (SR) documents the operative QIs compared with narrative reports (NR) for Roux-en-Y gastric bypass (RYGB). The time to report availability on patient chart was also identified as a secondary measure...
March 7, 2017: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/28433454/a-randomized-comparison-of-three-chest-compression-techniques-and-associated-hemodynamic-effect-during-infant-cpr-a-randomized-manikin-study
#16
Jacek Smereka, Lukasz Szarpak, Antonio Rodríguez-Núñez, Jerzy R Ladny, Steve Leung, Kurt Ruetzler
INTRODUCTION: Pediatric cardiac arrest is an uncommon but critical life-threatening event requiring effective cardiopulmonary resuscitation. High-quality cardio-pulmonary resuscitation (CPR) is essential, but is poorly performed, even by highly skilled healthcare providers. The recently described two-thumb chest compression technique (nTTT) consists of the two thumbs directed at the angle of 90° to the chest while having the fingers fist-clenched. This technique might facilitate adequate chest-compression depth, chest-compression rate and rate of full chest-pressure relief...
April 14, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28433453/attending-documentation-contribution-to-billing-at-an-academic-emergency-department-with-an-electronic-health-record
#17
Brian J Yun, Stephen C Dorner, Brian M Baccari, John Brennan, Karen Smith, Ali S Raja, Benjamin A White
INTRODUCTION: In emergency medicine (EM), patient care documentation serves many functions, including supporting reimbursement. In addition, many electronic health record systems facilitate automatically populating certain data fields. As a result, in the academic model, the attending's note may now more often recapitulate many of the same elements found in the resident's or physician assistant's (PA) note. We sought to determine the value of additional attending documentation, and how often the attending documentation prevented a downcoding event...
April 14, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28433444/risk-of-ocular-hypertension-in-adults-with-noninfectious-uveitis
#18
Ebenezer Daniel, Maxwell Pistilli, Srishti Kothari, Naira Khachatryan, R Oktay Kaçmaz, Sapna S Gangaputra, H Nida Sen, Eric B Suhler, Jennifer E Thorne, C Stephen Foster, Douglas A Jabs, Robert B Nussenblatt, James T Rosenbaum, Grace A Levy-Clarke, Nirali P Bhatt, John H Kempen
PURPOSE: To describe the risk and risk factors for ocular hypertension (OHT) in adults with noninfectious uveitis. DESIGN: Retrospective, multicenter, cohort study. PARTICIPANTS: Patients aged ≥18 years with noninfectious uveitis seen between 1979 and 2007 at 5 tertiary uveitis clinics. METHODS: Demographic, ocular, and treatment data were extracted from medical records of uveitis cases. MAIN OUTCOME MEASURES: Prevalent and incident OHT with intraocular pressures (IOPs) of ≥21 mmHg, ≥30 mmHg, and increase of ≥10 mmHg from documented IOP recordings (or use of treatment for OHT)...
April 19, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28433401/relaxed-open-mouth-reciprocity-favours-playful-contacts-in-south-american-sea-lions-otaria-flavescens
#19
Clara Llamazares-Martín, Chiara Scopa, Federico Guillén-Salazar, Elisabetta Palagi
Fine-tuning communication is well documented in mammalian social play which relies on a large variety of specific and non-specific signals. Facial expressions are one of the most frequent patterns in play communication. The reciprocity of facial signals expressed by the players provides information on their reciprocal attentional state and on the correct perception/decoding of the signal itself. Here, for the first time, we explored the Relaxed Open Mouth (ROM), a widespread playful facial expression among mammals, in the South American sea lion (Otaria flavescens)...
April 19, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28433250/public-private-implementation-of-integrated-emergency-response-services-case-study-of-gvk-emergency-management-and-research-institute-in-karnataka-india
#20
Veena M Sriram, Gopalkrishna Gururaj, Adnan A Hyder
BACKGROUND: Emergency medical services are important to the functioning of health systems, but these services tend to be neglected in low- and middle-income countries, such as India. In recent years, several models of pre-hospital emergency medical services have emerged in India. Research on these models holds important lessons for existing and future emergency medical service programs in low- and middle-income countries. Our objective was to provide a comprehensive description of the organizational structure and service delivery model of a public-private partnership in the southern Indian state of Karnataka, GVK Emergency Management and Research Institute, with a particular focus on its operations in Bengaluru...
April 19, 2017: Surgery
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