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https://www.readbyqxmd.com/read/29160706/synthesis-and-characterization-of-ultralow-fouling-poly-n-acryloyl-glycinamide-brushes
#1
Fengyu Yang, Yonglan Liu, Yanxian Zhang, Baiping Ren, Jianxiong Xu, Jie Zheng
Rational design of biomaterials with antifouling properties still remains a challenge, but is important for many bench-to-bedside applications for biomedical implants, drug delivery carriers, and marine coatings. Herein we synthesized and characterized poly(N-acryloylglycinamide) (polyNAGA) and then grafted poly(NAGA) onto Au substrate to form polymer brushes with well controlled film stability, wettability and thickness using the surface-initiated atom transfer radical polymerization (SI-ATRP). The NAGA monomer integrates two hydrophilic amides on the side chain to enhance surface hydration, which is thought as a critical contributor to antifouling property...
November 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29074905/antimicrobial-resistance-and-antimicrobial-stewardship-programmes-benefiting-the-patient-or-the-population
#2
(no author information available yet)
'...bedside rationing of antimicrobials is 'fair and ethically sound' even if it doesn't promote the short-term best medical interest of the individual patients'.
October 27, 2017: British Dental Journal
https://www.readbyqxmd.com/read/29058876/synthetic-xylosides-probing-the-glycosaminoglycan-biosynthetic-machinery-for-biomedical-applications
#3
Jie Shi Chua, Balagurunathan Kuberan
Glycosaminoglycans (GAGs) are polysaccharides ubiquitously found on cell surfaces and in the extracellular matrix (ECM). They regulate numerous cellular signaling events involved in many developmental and pathophysiological processes. GAGs are composed of complex sequences of repeating disaccharide units, each of which can carry many different modifications. The tremendous structural variations account for their ability to bind many proteins and thus, for their numerous functions. Although the sequence of GAG biosynthetic events and the enzymes involved mostly were deduced a decade ago, the emergence of tissue or cell specific GAGs from a nontemplate driven process remains an enigma...
October 23, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/29044002/irrational-antibiotic-prescribing-practice-among-children-in-critical-care-of-tertiary-hospitals
#4
Mirza Tasawer Baig, Ali Akbar Sial, Ambreen Huma, Maryam Ahmed, Uzma Shahid, Nayel Syed
This study assessed the prescribing pattern of irrational use of antibiotic among children under age of 12 years in public and private sector hospitals in Pakistan. The prospective clinical evaluation of drug utilization pattern of antimicrobials from Patient Bedside File (PBF) of in-patients and Culture Sensitivity Test (CST) reports were evaluated to determine the antibiotic resistance. Two indicators recorded to assess antibiotic prescribing were; dose of prescribed antibiotic (low-dose, rational and high -dose) and Indication (valid or invalid)...
July 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28984698/relative-importance-assigned-to-health-care-rationing-principles-at-the-bedside-evidence-from-a-portuguese-and-bulgarian-survey
#5
Micaela Moreira Pinho, Ana Pinto Borges
Activity was undertaken to develop a Prioritization Scoring Index for Portugal and Bulgaria that weights the importance given to ethical rationing principles that should guide decisions at the bedside. Data from two random samples of 355 Portuguese and 298 Bulgarian members of the public were collected from an online questionnaire. Questions asked about the level of importance given to specific issues related to patient's prioritization criteria. Responses were analyzed quantitatively with the SPSS. In the process of selecting the patient to treat, Portuguese and Bulgarian respondents seem unanimous in giving greater importance to (i) the treatment outcomes, (ii) the severity of illness, (iii) children, and (iv) patients' fragility...
October 2017: Health Care Manager
https://www.readbyqxmd.com/read/28968360/general-approach-to-peripheral-nerve-disorders
#6
James A Russell
PURPOSE OF REVIEW: This article provides a conceptual framework for the evaluation of patients with suspected polyneuropathy to enhance the clinician's ability to localize and confirm peripheral nervous system pathology and, when possible, identify an etiologic diagnosis through use of rational clinical and judicious testing strategies. RECENT FINDINGS: Although these strategies are largely time-honored, recent insights pertaining to the pathophysiology of certain immune-mediated neuropathies and to evolving genetic testing strategies may modify the way that select causes of neuropathy are conceptualized, evaluated, and managed...
October 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/28955226/tamoxifen-from-failed-contraceptive-pill-to-best-selling-breast-cancer-medicine-a-case-study-in-pharmaceutical-innovation
#7
Viviane M Quirke
Today, tamoxifen is one of the world's best-selling hormonal breast cancer drugs. However, it was not always so. Compound ICI 46,474 (as it was first known) was synthesized in 1962 within a project to develop a contraceptive pill in the pharmaceutical laboratories of ICI (now part of AstraZeneca). Although designed to act as an anti-estrogen, the compound stimulated, rather than suppressed ovulation in women. This, and the fact that it could not be patented in the USA, its largest potential market, meant that ICI nearly stopped the project...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28735000/application-of-pharmacometrics-and-quantitative-systems-pharmacology-to-cancer-therapy-the-example-of-luminal-a-breast-cancer
#8
REVIEW
Brett Fleisher, Ashley N Brown, Sihem Ait-Oudhia
Breast cancer (BC) is the most common cancer in women, and the second most frequent cause of cancer-related deaths in women worldwide. It is a heterogeneous disease composed of multiple subtypes with distinct morphologies and clinical implications. Quantitative systems pharmacology (QSP) is an emerging discipline bridging systems biology with pharmacokinetics (PK) and pharmacodynamics (PD) leveraging the systematic understanding of drugs' efficacy and toxicity. Despite numerous challenges in applying computational methodologies for QSP and mechanism-based PK/PD models to biological, physiological, and pharmacological data, bridging these disciplines has the potential to enhance our understanding of complex disease systems such as BC...
July 19, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28610537/overcoming-multiple-myeloma-drug-resistance-in-the-era-of-cancer-omics
#9
Matthew Ho Zhi Guang, Amanda McCann, Giada Bianchi, Li Zhang, Paul Dowling, Despina Bazou, Peter O'Gorman, Kenneth C Anderson
Multiple myeloma (MM) is among the most compelling examples of cancer in which research has markedly improved the length and quality of lives of those afflicted. Research efforts have led to 18 newly approved treatments over the last 12 years, including seven in 2015. However, despite significant improvement in overall survival, MM remains incurable as most patients inevitably, yet unpredictably, develop refractory disease. Recent advances in high-throughput 'omics' techniques afford us an unprecedented opportunity to (1) understand drug resistance at the genomic, transcriptomic, and proteomic level; (2) discover novel diagnostic, prognostic, and therapeutic biomarkers; (3) develop novel therapeutic targets and rational drug combinations; and (4) optimize risk-adapted strategies to circumvent drug resistance, thus bringing us closer to a cure for MM...
June 13, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28416241/circulating-tumor-dna-from-bench-to-bedside
#10
Joline S J Lim, Filip Janku, Timothy A Yap
In the era of personalized medicine, tumor sampling is paramount to enable the assessment of actionable molecular aberrations to help rationalize and guide treatment decisions. Longitudinal tracking of such aberrations may also be helpful to detect emerging drug resistance and to allow for timely modifications to ongoing therapies to improve patient outcomes. Nevertheless, tumor tissue sampling involves an invasive procedure with potential risks to patients and involves logistical challenges. As such, other less invasive and safer methods such as blood sampling for molecular profiling has been gaining traction...
May 2017: Current Problems in Cancer
https://www.readbyqxmd.com/read/28301693/the-clue
#11
Tyler Tate
As I stood outside of Carlos's room, I felt caught on the horns of a dilemma. It seemed impossible to truly "be there" for Carlos without sacrificing my other intern duties. This tension pervaded much of my residency training, as I often found myself spending more time completing chart notes, answering pages, and giving sign out than I did at the bedside with my patients. I knew I had a duty to "do my job"-I could not let my team down. But what about my duty to Carlos, a duty to act on my intuition and try to "get to the bottom" of his illness, if that was even possible? And what about my thirteen other patients? Wasn't I was their doctor as well? I have spent countless hours studying the ethical frameworks for medical rationing...
March 2017: Hastings Center Report
https://www.readbyqxmd.com/read/28298480/antimicrobial-stewardship-programmes-bedside-rationing-by-another-name
#12
Simon Oczkowski
Antimicrobial therapy is a cornerstone of therapy in critically ill patients; however, the wide use of antibiotics has resulted in increased antimicrobial resistance and outbreaks of resistant disease. To counter this, many hospitals have instituted antimicrobial stewardship programmes as a way to reduce the inappropriate use of antibiotics. However, uptake of antimicrobial stewardship programmes has been variable, as many clinicians fear that they may put individual patients at risk of treatment failure. In this paper, I argue that antimicrobial stewardship programmes are indeed a form of bedside rationing, and explore the risks and benefits of such programmes for individual patients in the intensive care unit, and the critically ill population in general...
March 15, 2017: Journal of Medical Ethics
https://www.readbyqxmd.com/read/28225697/who-should-ration
#13
Philip M Rosoff
A principal component of physician decision making is judging what interventions are clinically appropriate. Due to the inexorable and steady increase of health care costs in the US, physicians are constantly being urged to exercise judicious financial stewardship with due regard for the financial implications of what they prescribe. When applied on a case-by-case basis, this otherwise reasonable approach can lead to either inadvertent or overt and arbitrary restriction of interventions for some patients rather than others on the basis of clinically irrelevant characteristics such as ethnicity, gender, age, or skin color...
February 1, 2017: AMA Journal of Ethics
https://www.readbyqxmd.com/read/28127654/-postoperative-wound-infections-diagnosis-classification-and-treatment
#14
D Seidel, J Bunse
BACKGROUND: Surgical site infections are a frequent complication of surgery and a severe burden for the patient as well as for the healthcare system. Sound knowledge of the disease pattern is an essential prerequisite for effective therapy. OBJECTIVE: This article presents an overview of the diagnosis, classification and treatment options for surgical site infections. MATERIAL AND METHODS: Based on the existing experience, the currently available evidence and pathophysiological considerations, an overview of the diagnostic possibilities, the existing classification systems and the treatment options is presented...
May 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/27874172/development-of-crizotinib-a-rationally-designed-tyrosine-kinase-inhibitor-for-non-small-cell-lung-cancer
#15
REVIEW
Candice C Poon, John J Kelly
Non-small cell lung cancer (NSCLC) is the number one cause of global mortality. Despite aggressive treatment, the prognosis is dismal. Patients with advanced NSCLC have a median survival of 4 months from the time of diagnosis. Fortunately, molecularly based approaches to drug discovery have yielded a tyrosine kinase inhibitor, crizotinib, which significantly prolongs median progression-free survival in a subset of patients. Although initial clinical trial results demonstrate crizotinib has a promising role to play in NSCLC treatment, development of resistance leaves much to be elucidated about how to effectively combat this deadly disease...
May 1, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27811591/similarities-and-differences-in-nurse-reported-care-rationing-between-critical-care-surgical-and-medical-specialties
#16
Megan Higgs, Ritin Fernandez, Suzanne Polis, Vicki Manning
OBJECTIVE: The aim of this study was to determine the similarities and differences in elements of nursing care that are commonly rationed in the critical care, medical, and surgical specialties within an acute hospital environment. METHODS: Registered nurses who provide bedside nursing care within the medical, surgical, and critical specialties at a single center were invited to anonymously complete the self-administered MISSCARE questionnaire. The frequency of rationing for each individual care element within the 4 broader care groups (assessment, intervention-individual needs, intervention-basic care, and planning) of the MISSCARE questionnaire was determined...
November 2, 2016: Journal of Patient Safety
https://www.readbyqxmd.com/read/27441603/from-bench-top-to-bedside-a-prospective-in-vitro-antibiotic-combination-testing-iact-service-to-guide-the-selection-of-rationally-optimized-antimicrobial-combinations-against-extensively-drug-resistant-xdr-gram-negative-bacteria-gnb
#17
Yiying Cai, Nathalie Grace Chua, Tze-Peng Lim, Jocelyn Qi-Min Teo, Winnie Lee, Asok Kurup, Tse-Hsien Koh, Thuan-Tong Tan, Andrea L Kwa
INTRODUCTION: Combination therapy is increasingly utilized against extensively-drug resistant (XDR) Gram negative bacteria (GNB). However, choosing a combination can be problematic as effective combinations are often strain-specific. An in vitro antibiotic combination testing (iACT) service, aimed to guide the selection of individualized and rationally optimized combination regimens within 48 hours, was developed. We described the role and feasibility of the iACT service in guiding individualized antibiotic combination selection in patients with XDR-GNB infections...
2016: PloS One
https://www.readbyqxmd.com/read/27393082/kinases-inhibitors-in-lung-cancer-from-benchside-to-bedside
#18
REVIEW
Pankaj Kumar Singh, Harpreet Singh, Om Silakari
Lung cancer still remains one of the major causes of cancer related mortality around the globe. Various different molecular targets have been discovered till date for targeting lung cancer. But not every new molecular target has a successfully designed inhibitor; moreover conventional chemotherapeutics have their own limitations such as toxicity and lack of selectivity. Thus, kinases still remain the most effective molecular target in lung cancer therapy. Also, once-shunned kinase inhibitors have recently acquired renewed interest after the development and approval of irreversible kinase inhibitors (such as afatinib) that form covalent bonds with cysteine (or other nucleophilic residues) in the ATP-binding pocket of the kinases...
August 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27173747/off-the-shelf-cellular-therapeutics-factors-to-consider-during-cryopreservation-and-storage-of-human-cells-for-clinical-use
#19
REVIEW
Erik J Woods, Sreedhar Thirumala, Sandhya S Badhe-Buchanan, Dominic Clarke, Aby J Mathew
The field of cellular therapeutics has immense potential, affording an exciting array of applications in unmet medical needs. One of several key issues is an emphasis on getting these therapies from bench to bedside without compromising safety and efficacy. The successful commercialization of cellular therapeutics will require many to extend the shelf-life of these therapies beyond shipping "fresh" at ambient or chilled temperatures for "just in time" infusion. Cryopreservation is an attractive option and offers potential advantages, such as storing and retaining patient samples in case of a relapse, banking large quantities of allogeneic cells for broader distribution and use and retaining testing samples for leukocyte antigen typing and matching...
June 2016: Cytotherapy
https://www.readbyqxmd.com/read/27169342/non-rinse-skin-cleansers-the-way-forward-in-preventing-incontinence-related-moisture-lesions
#20
RANDOMIZED CONTROLLED TRIAL
F J Harries, P A Begg
OBJECTIVE: The use of non-rinse skin cleansers in the care of patients who are at risk of tissue breakdown is not new within the National Health Service (NHS). Back to the Floor Continence Care Rounds (introduced in 2012 to facilitate bedside continence care education) at University Hospitals Birmingham had identified that in the current climate of austerity and efficiency savings, the use of non-rinse cleanser was being randomly rationed. Our objective was to determine whether the introduction of a smaller tube of non-rinse cleanser with targeted education would improve usage and ultimately improve the skin of incontinent patients...
May 2016: Journal of Wound Care
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