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https://www.readbyqxmd.com/read/28934551/polymer-conjugation-to-enhance-cellulase-activity-and-preserve-thermal-and-functional-stability
#1
Thaiesha A Wright, Melissa Lucius Dougherty, Benjamin Schmitz, Kevin M Burridge, Katherine Makaroff, Jamie M Stewart, Henry D Fischesser, Jerry T Shepherd, Jason A Berberich, Dominik Konkolewicz, Richard C Page
A thermophilic cellulase, FnCel5a, from Fervidobacterium nodosum was conjugated with various functional polymers including cationic, anionic, and strongly and weakly hydrogen bonding polymers. The activity of FnCel5a toward a high molecular weight carboxymethyl cellulose substrate was enhanced by polymer conjugation. Activity enhancements of 50% or greater observed for acrylamide and mixed N,N-dimethyl acrylamide/2-(N,N-dimethylamino)ethyl methacrylate polymers suggesting that the greatest enhancements were caused by polymers capable of non-covalent interactions with the substrate...
September 21, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28934097/respiratory-dermal-and-eye-irritation-symptoms-associated-with-corexit%C3%A2-ec9527a-ec9500a-following-the-deepwater-horizon-oil-spill-findings-from-the-gulf-study
#2
Craig J McGowan, Richard K Kwok, Lawrence S Engel, Mark R Stenzel, Patricia A Stewart, Dale P Sandler
BACKGROUND: The large quantities of chemical oil dispersants used in the oil spill response and cleanup (OSRC) work following the Deepwater Horizon disaster provide an opportunity to study associations between dispersant exposure (Corexit™ EC9500A or EC9527A) and human health. OBJECTIVES: Our objectives were to examine associations between potential exposure to the dispersants and adverse respiratory, dermal, and eye irritation symptoms. METHODS: Using data from detailed Gulf Long-term Follow-up ( GuLF) Study enrollment interviews, we determined potential exposure to either dispersant from participant-reported tasks during the OSRC work...
September 15, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28933280/prevalence-of-hiv-seropositivity-and-associated-impact-on-mortality-among-injured-patients-from-low-and-middle-income-countries-a-systematic-review-and-meta-analysis
#3
Adam R Aluisio, Soham Rege, Barclay T Stewart, John Kinuthia, Adam C Levine, Michael J Mello, Carey Farquhar
BACKGROUND: Although HIV and injury contribute substantially to disease burdens in low-and middle-income countries (LMIC), their intersection is poorly characterized. OBJECTIVE: This systematic review assessed the prevalence and associated mortality impact of HIV-seropositivity among injured patients in LMIC. METHODS: A systematic search of PubMed, EMBASE, Global Health, CINAHL, POPLINE and Cochrane databases through August 2016 was performed...
September 19, 2017: Current HIV Research
https://www.readbyqxmd.com/read/28932622/high-throughput-nuclear-delivery-and-rapid-expression-of-dna-via-mechanical-and-electrical-cell-membrane-disruption
#4
Xiaoyun Ding, Martin Stewart, Armon Sharei, James C Weaver, Robert S Langer, Klavs F Jensen
Nuclear transfection of DNA into mammalian cells is challenging yet critical for many biological and medical studies. Here, by combining cell squeezing and electric-field-driven transport in a device that integrates microfluidic channels with constrictions and microelectrodes, we demonstrate nuclear delivery of plasmid DNA within 1 hour after treatment, the most rapid DNA expression in a high-throughput setting (up to millions of cells per minute per device). Passing cells at high speed through microfluidic constrictions smaller than the cell diameter mechanically disrupts the cell membrane, allowing a subsequent electric field to further disrupt the nuclear envelope and drive DNA molecules into the cytoplasm and nucleus...
2017: Nature biomedical engineering
https://www.readbyqxmd.com/read/28931016/insight-into-central-asian-flora-from-the-cenozoic-tianshan-montane-origin-and-radiation-of-lagochilus-lamiaceae
#5
Ming-Li Zhang, Xiao-Qing Zeng, Stewart C Sanderson, Vyacheslav V Byalt, Alexander P Sukhorukov
The Tianshan Mountains play a significant role in the Central Asian flora and vegetation. Lagochilus has a distribution concentration in Tianshan Mountains and Central Asia. To investigate generic spatiotemporal evolution, we sampled most Lagochilus species and sequenced six cpDNA locations (rps16, psbA-trnH, matK, trnL-trnF, psbB-psbH, psbK-psbI). We employed BEAST Bayesian inference for dating, and S-DIVA, DEC, and BBM for ancestral area/biome reconstruction. Our results clearly show that the Tianshan Mountains, especially the western Ili-Kirghizia Tianshan, as well as Sunggar and Kaschgar, was the ancestral area...
2017: PloS One
https://www.readbyqxmd.com/read/28930955/comparison-of-compensatory-reserve-and-arterial-lactate-as-markers-of-shock-and-resuscitation
#6
Michael Craig Johnson, Abdul Alarhayem, Victor Convertino, Robert Carter, Kevin Chung, Ronald Stewart, John Myers, Daniel Dent, Lilian Liao, Ramon Cestero, Susannah Nicholson, Mark Muir, Martin Schwaca, David Wampler, Mark DeRosa, Brian J Eastridge
BACKGROUND: During traumatic hemorrhage, the ability to identify shock and intervene before decompensation is paramount to survival. Lactate is extremely sensitive to shock, and its clearance has been demonstrated a useful gauge of shock and resuscitation status. Though lactate can be measured in the field, logistical constraints render it impractical in certain environments. The compensatory reserve represents a new clinical measurement reflecting the remaining capacity to compensate for hypoperfusion...
October 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28930762/competency-based-medical-education-in-the-internal-medicine-clerkship-a-report-from-the-alliance-for-academic-internal-medicine-undergraduate-medical-education-task-force
#7
Sara B Fazio, Cynthia H Ledford, Paul B Aronowitz, Shobhina G Chheda, John H Choe, Stephanie A Call, Scott D Gitlin, Marty Muntz, L James Nixon, Anne G Pereira, John W Ragsdale, Emily A Stewart, Karen E Hauer
As medical educators continue to redefine learning and assessment across the continuum, implementation of competency-based medical education in the undergraduate setting has become a focus of many medical schools. While standards of competency have been defined for the graduating student, there is no uniform approach for defining competency expectations for students during their core clerkship year. The authors describe the process by which an Alliance for Academic Internal Medicine task force developed a paradigm for competency-based assessment of students during their inpatient internal medicine (IM) clerkship...
September 14, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28929882/supporting-hospital-renewal-through-strategic-environmental-sustainability-programs
#8
Peter Pisters, Belinda Bien, Stewart Dankner, Ed Rubinstein, Fatima Sheriff
Although the impact the environment can have on human health is well understood, the healthcare system's impact on the environment is a topic that's only been explored since the mid-1990s. More recent has been a realization of the risks that climate change poses to health and healthcare. Although there are numerous direct benefits for hospitals adapting environmental sustainability programs, this article examines how the systemic approach taken by the University Health Network's (UHN) Energy & Environment program not only improves the hospital's environmental performance and provides significant cost savings but also supports several areas of focus that are part of UHN's current journey of renewal...
March 2017: Healthcare Management Forum
https://www.readbyqxmd.com/read/28926977/mouse-monoclonal-antibodies-generated-from-full-length-human-cereblon-detection-of-cereblon-protein-in-patients-with-multiple-myeloma
#9
Xiubao Chang, Qinqin Xu, Yuexian Hou, Cynthia Li, Ye Xu, A Keith Stewart
Immunomodulatory drugs (IMiDs) are profoundly active compounds in the treatment of patients with multiple myeloma (MM). However, despite the fact that treatment with IMiDs has dramatically improved survival for patients with MM, the majority of MM patients develop IMiDs resistance over time. We have found that expression of functional cereblon is required for IMiDs' action. In addition, it has been reported that cells expressing high levels of cereblon are resistant to proteasome inhibitor, implying that patients with high levels of cereblon should be resistant to proteasome inhibitor...
September 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28926303/subgroups-of-adolescent-girls-with-borderline-personality-disorder-symptoms
#10
Claire Slavin-Stewart, Khrista Boylan, Jeffrey D Burke
The aim of this study was to determine whether borderline personality disorder (BPD) can be differentiated from other disorders in a clinical sample of adolescent girls. Participants (N = 75) were grouped based on the pattern of BPD symptom endorsement using a latent class analysis. Four latent classes were identified. The most impaired class endorsed seven BPD symptoms and an average of three comorbid disorders. An intermediate class endorsed three BPD symptoms and had the highest prevalence of PTSD (41.7%)...
September 19, 2017: Journal of Personality Disorders
https://www.readbyqxmd.com/read/28925727/the-effect-of-person-order-on-egress-time-a-simulation-model-of-evacuation-from-a-neolithic-visitor-attraction
#11
Arthur Stewart, Eyad Elyan, John Isaacs, Leah McEwen, Lyn Wilson
OBJECTIVE: The aim of this study was to model the egress of visitors from a Neolithic visitor attraction. BACKGROUND: Tourism attracts increasing numbers of elderly and mobility-impaired visitors to our built-environment heritage sites. Some such sites have very limited and awkward access, were not designed for mass visitation, and may not be modifiable to facilitate disabled access. As a result, emergency evacuation planning must take cognizance of robust information, and in this study we aimed to establish the effect of visitor position on egress...
September 1, 2017: Human Factors
https://www.readbyqxmd.com/read/28924616/soil-transmitted-helminth-infections-are-not-associated-with-compromised-antibody-responses-to-previously-administered-measles-and-tetanus-vaccines-among-hiv-1-infected-art-na%C3%A3-ve-kenyan-adults
#12
Helen L Storey, Benson Singa, Jackie Naulikha, Helen Horton, Barbra A Richardson, Grace John-Stewart, Judd L Walson
In many regions of sub-Saharan Africa, both HIV and helminth infections are prevalent. HIV-1 (human immunodeficiency virus type 1) and helminth infections can both compromise immune responses in humans. To determine whether the presence of helminth infection or the treatment of helminth infection alters unstimulated vaccine responses among HIV-1 infected individuals, we conducted two nested serologic studies. Blood samples were collected for HIV disease monitoring and vaccine-specific serologic assays, while stool was evaluated by direct microscopy methods...
February 2017: Parasite Epidemiology and Control
https://www.readbyqxmd.com/read/28923833/nephrology-provider-prognostic-perceptions-and-care-delivered-to-older-adults-with-advanced-kidney-disease
#13
Huzaifah Salat, Andrei Javier, Edward D Siew, Rocio Figueroa, Loren Lipworth, Edmond Kabagambe, Aihua Bian, Thomas G Stewart, Maie H El-Sourady, Mohana Karlekar, Cesar Y Cardona, T Alp Ikizler, Khaled Abdel-Kader
BACKGROUND AND OBJECTIVES: Prognostic uncertainty is one barrier that impedes providers in engaging patients with CKD in shared decision making and advance care planning. The surprise question has been shown to identify patients at increased risk of dying. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: In our prospective observational study, 488 patients ≥60 years of age with CKD stage 4 or 5 were enrolled. Binary surprise question (i.e., "Would you be surprised if this patient died in the next 12 months?") responses were recorded, and dialysis planning preferences, presence of advance care planning documentation, and care preceding death were abstracted...
September 18, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28923465/continuous-glucose-monitoring-in-pregnant-women-with-type-1-diabetes-conceptt-a-multicentre-international-randomised-controlled-trial
#14
Denice S Feig, Lois E Donovan, Rosa Corcoy, Kellie E Murphy, Stephanie A Amiel, Katharine F Hunt, Elisabeth Asztalos, Jon F R Barrett, J Johanna Sanchez, Alberto de Leiva, Moshe Hod, Lois Jovanovic, Erin Keely, Ruth McManus, Eileen K Hutton, Claire L Meek, Zoe A Stewart, Tim Wysocki, Robert O'Brien, Katrina Ruedy, Craig Kollman, George Tomlinson, Helen R Murphy
BACKGROUND: Pregnant women with type 1 diabetes are a high-risk population who are recommended to strive for optimal glucose control, but neonatal outcomes attributed to maternal hyperglycaemia remain suboptimal. Our aim was to examine the effectiveness of continuous glucose monitoring (CGM) on maternal glucose control and obstetric and neonatal health outcomes. METHODS: In this multicentre, open-label, randomised controlled trial, we recruited women aged 18-40 years with type 1 diabetes for a minimum of 12 months who were receiving intensive insulin therapy...
September 14, 2017: Lancet
https://www.readbyqxmd.com/read/28922561/reconciling-female-genital-circumcision-with-universal-human-rights
#15
John-Stewart Gordon
One of the most challenging issues in cross-cultural bioethics concerns the long-standing socio-cultural practice of female genital circumcision (FGC), which is prevalent in many African countries and the Middle East as well as in some Asian and Western countries. It is commonly assumed that FGC, in all its versions, constitutes a gross violation of the universal human rights of health, physical integrity, and individual autonomy and hence should be abolished. This article, however, suggests a mediating approach according to which one form of FGC, the removal of the clitoris foreskin, can be made compatible with the high demands of universal human rights...
September 18, 2017: Developing World Bioethics
https://www.readbyqxmd.com/read/28921643/bridging-adult-experience-to-pediatrics-in-oncology-drug-development
#16
Ruby Leong, Hong Zhao, Gregory Reaman, Qi Liu, Yaning Wang, Clinton F Stewart, Gilbert Burckart
Pediatric drug development in the United States has grown under the current regulations made permanent by the Food and Drug Administration Safety and Innovation Act of 2012. Over 1200 pediatric studies have now been submitted to the US FDA, but there is still a high rate of failure to obtain pediatric labeling for the indication pursued. Pediatric oncology represents special problems in that the disease is most often dissimilar to any cancer found in the adult population. Therefore, the development of drug dosing in pediatric oncology patients represents a special challenge...
October 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28920887/the-chronic-and-evolving-neurological-consequences-of-traumatic-brain-injury
#17
REVIEW
Lindsay Wilson, William Stewart, Kristen Dams-O'Connor, Ramon Diaz-Arrastia, Lindsay Horton, David K Menon, Suzanne Polinder
Traumatic brain injury (TBI) can have lifelong and dynamic effects on health and wellbeing. Research on the long-term consequences emphasises that, for many patients, TBI should be conceptualised as a chronic health condition. Evidence suggests that functional outcomes after TBI can show improvement or deterioration up to two decades after injury, and rates of all-cause mortality remain elevated for many years. Furthermore, TBI represents a risk factor for a variety of neurological illnesses, including epilepsy, stroke, and neurodegenerative disease...
October 2017: Lancet Neurology
https://www.readbyqxmd.com/read/28920751/distress-due-to-prognostic-uncertainty-in-palliative-care-frequency-distribution-and-outcomes-among-hospitalized-patients-with-advanced-cancer
#18
Robert Gramling, Susan Stanek, Paul K J Han, Paul Duberstein, Tim E Quill, Jennifer S Temel, Stewart C Alexander, Wendy G Anderson, Susan Ladwig, Sally A Norton
BACKGROUND: Prognostic uncertainty is common in advanced cancer and frequently addressed during palliative care consultation, yet we know little about its impact on quality of life (QOL). OBJECTIVE: We describe the prevalence and distribution of distress due to prognostic uncertainty among hospitalized patients with advanced cancer before palliative care consultation. We evaluate the association between this type of distress and overall QOL before and after palliative care consultation...
September 18, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28917251/advances-in-external-beam-stereotactic-body-radiotherapy-principle-concerns-in-implementing-a-liver-radiation-program
#19
Stewart Gaede, Michael I Lock
Despite significant advances in diagnosis, surgery and medical oncology, patients with primary and secondary liver cancer have some of the worst prognoses in oncology. In addition, the incidence of liver cancer is expected to increase. For this reason, centres are seeking new treatments and establishing specialized multidisciplinary teams. This article will focus on the evidence and practical data to assist in setting up or improving current process pathways, to provide an efficient and safe radiotherapy program for liver...
September 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28916306/end-to-side-versus-side-to-side-anastomosis-in-upper-limb-arteriovenous-fistula-for-dialysis-access-a-systematic-review-and-a-meta-analysis
#20
Khalid Bashar, Mekki Medani, Hiba Bashar, Khalid Ahmed, Thomas Aherne, Tony Moloney, Stewart R Walsh
OBJECTIVES: To systematically assess the difference between both procedures in terms of access maturation, patency and postoperative complications. BACKGROUND: An arteriovenous fistula (AVF) is the best modality for haemodialysis (HD) access. The end-to-side (ETS) technique has been suggested in the literature to produce superior results to the side-to-side approach; however, in the absence of a systematic review, this practice remains debatable. METHODS: Online search for randomised controlled trials (RCTs) and observational studies that compared the end-to-side versus the side-to-side anastomosis techniques in creating an upper limb AVF...
September 12, 2017: Annals of Vascular Surgery
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