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https://www.readbyqxmd.com/read/29792667/control-of-selectivity-in-palladium-ii-catalyzed-oxidative-transformations-of-allenes
#1
Bin Yang, Youai Qiu, Jan-E Bäckvall
Oxidation reactions play a central role in organic synthesis, and it is highly desirable that these reactions are mild and occur under catalytic conditions. In Nature, oxidation reactions occur under mild conditions via cascade processes, and furthermore, they often occur in an enantioselective manner with many of them involving molecular oxygen or hydrogen peroxide as the terminal oxidant. Inspired by the reactions in Nature, we have developed a number of Pd(II)-catalyzed cascade reactions under mild oxidative conditions...
May 24, 2018: Accounts of Chemical Research
https://www.readbyqxmd.com/read/29792548/comparison-of-the-ocular-penetration-and-pharmacokinetics-between-natamycin-and-voriconazole-after-topical-instillation-in-rabbits
#2
Xin Zhao, Yang Tong, Xiaotong Wang, Xian Zhang, Shichao Chen, Hong Lu
PURPOSE: To investigate the ocular penetration of natamycin (NAT) and voriconazole (VRC) after topical instillation in New Zealand white rabbits using simplified liquid chromatography-tandem mass spectrometry (LC-MS/MS) and high-performance liquid chromatography. METHODS: Seventy-eight healthy rabbits were randomly divided into 3 groups. In the first 2 groups, 72 rabbits were used for single-dose testing (36 for NAT, 36 for VRC), in which 50 μL of 5.0% NAT or 1...
May 24, 2018: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29792260/widening-participation-of-m%C3%A4-ori-and-pasifika-students-in-health-careers-evaluation-of-two-health-science-academies
#3
Lesley Middleton, Ausaga Faasalele Tanuvasa, Megan Pledger, Nicola Grace, Kirsten Smiler, Tua Taueetia Loto-Su'a, Jacqueline Cumming
Objective The aim of the present study was to evaluate the short-term outcomes of two health science academies established by a district health board in South Auckland, New Zealand, to create a health workforce pipeline for local Māori and Pasifika students. Methods A mixed-methods approach was used, involving background discussions with key informants to generate an initial logic model of how the academies work, followed by secondary analysis of students' records relating to retention and academic achievement, a survey of senior academy students' interest in particular health careers and face-to-face interviews and focus groups with students, families and teachers...
May 24, 2018: Australian Health Review: a Publication of the Australian Hospital Association
https://www.readbyqxmd.com/read/29791917/hybrid-diffuse-reflectance-spectroscopy-non-erythemal-in-vivo-testing-of-sun-protection-factor
#4
Mathias Rohr, Nikolai Ernst, Andreas Schrader
BACKGROUND/AIMS: In order to define a label sun protection factor (SPF) of topically applied sunscreens, in vivo test methods like ISO 24444, FDA guideline, or the Australian standard are used worldwide. The basis of all these methods is provoking an erythemal skin reaction by UV irradiation to find the level of unprotected and protected minimal erythemal doses (MED). In vitro methods replacing the human skin by any kind of non-human material are still not available. Thus, offering the new hybrid diffuse reflectance spectroscopy (HDRS) technique that is able to stay on an in vivo level for SPF testing but meanwhile neglecting the UV-dose-related erythemal skin reaction is a perfect combination to take care of sun protection and any ethical concerns in SPF testing nowadays...
May 23, 2018: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/29791916/diclofenac-sodium-3-in-hyaluronic-acid-2-5-gel-significantly-diminishes-the-actinic-keratosis-area-and-severity-index
#5
Lutz Schmitz, Girish Gupta, Marc Hanno Segert, Ricarda Kost, Julia Sternberg, Thilo Gambichler, Eggert Stockfleth, Thomas Dirschka
BACKGROUND/AIMS: Actinic keratosis area and severity index (AKASI) is a new assessment tool to quantify the severity of actinic damage on the head. Thus far, it has not been evaluated in monitoring the efficacy of field-directed topical treatments in actinic keratosis (AK) in routine clinical practice. Thus, the aim of this study was to determine treatment outcomes by using AKASI 3 months after the initiation of topical application of diclofenac sodium 3% in hyaluronic acid 2.5% gel (DFS) in patients with AKs on the head...
May 23, 2018: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/29791700/closing-the-gap-novel-abdominal-wound-closure-techniques
#6
James Dana Kondrup, Alaina M Qayyum
Traditionally, surgical procedures within the realm of both general and gynecological surgery employ the use of staples and interrupted sutures that run continuously with knot tying or subcuticular sutures to ensure closure of large wound incisions, subcuticular incisions, and fascial repair. However, these methods may not always be cosmetically favorable and, thus, result in an unpleasant outcome for the patient, adding to their surgery-related stress. It is, therefore, imperative that surgeons and gynecologists are aware of alternative methods of wound closure that are not only cosmetically favorable, but also ensure rapid wound recovery and infection control...
June 1, 2018: Surgical Technology International
https://www.readbyqxmd.com/read/29791424/-primary-biliary-cholangitis-part-2-state-of-the-art-diagnosis-associated-diseases-treatment-and-prognosis
#7
Diego Andrés Rodríguez Lugo, Jorge Julián Coronado Tovar, Giovana Alejandra Solano Villamarin, Wiliam Otero Regino
Primary biliary cholangitis (PBC) is a chronic autoimmune cholangiopathy characterized by a selective destruction of biliary epithelial cells of small and medium caliber hepatic ducts, which mainly affects women. The main symptoms are fatigue and pruritus, however, a large proportion of patients may be asymptomatic. The diagnosis is based on AMA titers >1:40, alkaline phosphatase >1.5 times the upper limit for more than 24 weeks and compatible liver histology. It is associated with multiple autoimmune diseases mainly extrahepatic, thyroid diseases, bone diseases, among others...
January 2018: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/29791286/metastatic-pancreatic-cancer-asco-clinical-practice-guideline-update
#8
Davendra P S Sohal, Erin B Kennedy, Alok Khorana, Mehmet S Copur, Christopher H Crane, Ignacio Garrido-Laguna, Smitha Krishnamurthi, Cassadie Moravek, Eileen M O'Reilly, Philip A Philip, Ramesh K Ramanathan, Joseph T Ruggiero, Manish A Shah, Susan Urba, Hope E Uronis, Michelle W Lau, Daniel Laheru
Purpose In 2016, ASCO published a guideline to assist in clinical decision making in metastatic pancreatic cancer for initial assessment after diagnosis, first- and second-line treatment options, palliative and supportive care, and follow-up. The purpose of this update is to incorporate new evidence related to second-line therapy for patients who have experienced disease progression or intolerable toxicity during first-line therapy. Methods ASCO convened an Expert Panel to conduct a systematic review of the literature on second-line therapy published between June 2015 and January 2018...
May 23, 2018: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29791137/the-chemistry-of-lyophilized-blood-products
#9
Joseph Fernandez-Moure, Nuzhat Maisha, Erin B Lavik, Jeremy Cannon
With the development of new biologics and bioconjugates, storage and preservation have become more critical than ever before. Lyophilization is a method of cell and protein preservation by removing a solvent such as water from a substance followed by freezing. This technique has been used in the past and still holds promise for overcoming logistic challenges in safety net hospitals with limited blood banking resources, austere environments such as combat, and in mass casualty situations where existing resources may be outstripped...
May 23, 2018: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/29790514/theoretical-investigation-of-m-pb-12-2-and-m-sn-12-2-zintl-clusters-m-lr-n-lu-n-la-3-ac-3-and-n-0-1-2-3
#10
Meenakshi Joshi, Aditi Chandrasekar, Tapan K Ghanty
The positions of lawrencium (Lr), lutetium (Lu), actinium (Ac) and lanthanum (La) in the periodic table have been a controversial topic for quite some time. According to studies carried out by different groups with their justifications, these elements may potentially be placed in the d-block, p-block or all four in a 15 element f-block. The present work looks into this issue from a new perspective, which involves encapsulation of these four elements into Zintl ion clusters, Pb122- and Sn122-, followed by the determination of the structural, thermodynamic and electronic properties of these endohedral M@Pb122- and M@Sn122- clusters (M = Lrn+, Lun+ with n = 0, 1, 2, 3) using first principles based density functional theory (DFT)...
May 23, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29790421/facilitators-and-barriers-to-oncologists-conduct-of-goals-of-care-conversations
#11
Dena Schulman-Green, Jenny J Lin, Cardinale B Smith, Shelli Feder, Nina A Bickell
INTRODUCTION: Goals of care (GoC) conversations optimally begin early in the course of cancer care, yet most happen near the end of life. We sought to describe oncologist-reported facilitators of and barriers to GoC conversations with patients who have advanced cancer. METHODS AND MATERIALS: We conducted individual, semistructured qualitative interviews with oncologists from 4 academic, community, municipal, and rural hospitals in New York and Connecticut. Interview topics included approach to GoC conversations, facilitators, barriers, and organizational influences...
January 1, 2018: Journal of Palliative Care
https://www.readbyqxmd.com/read/29790262/the-efficacy-and-tolerability-of-5-aminolevulinic-acid-5-thermosetting-gel-photodynamic-therapy-pdt-in-the-treatment-of-mild-to-moderate-acne-vulgaris-a-two-center-prospective-assessor-blinded-proof-of-concept-study
#12
Stefano Maria Serini, Maria Vittoria Cannizzaro, Annunziata Dattola, Virginia Garofalo, Esther Del Duca, Alessandra Ventura, Massimo Milani, Elena Campione, Luca Bianchi
BACKGROUND: Acne vulgaris is a chronic inflammatory skin disease, commonly treated with topical or systemic drugs, according to the severity of the condition. Retinoids and antibiotic compounds are considered cornerstone approaches in this condition. However, low adherence to the therapy and the issue of bacterial resistance undermine the efficacy in the long term. Photodynamic therapy (PDT) with 20% aminolevulinic acid (ALA) has shown to be effective in the treatment of inflammatory acne...
May 22, 2018: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29790104/beneficial-effects-of-antioxidant-furfuryl-palmitate-in-non-pharmacologic-treatments-prescription-emollient-devices-peds-for-atopic-dermatitis-and-related-skin-disorders
#13
REVIEW
Paolo Daniele Pigatto, Marco Diani
INTRODUCTION: Atopic dermatitis (AD) is a common chronic inflammatory skin disease; it requires long-term treatments focused on symptomatic relief. Current first-line treatments include moisturizers and topical corticosteroids. Recently, topical antioxidants have been added to moisturizer formulations to alleviate mild-to-moderate AD. The aim of this review was to evaluate the efficacy and tolerability of furfuryl palmitate, a new antioxidant molecule, and furfuryl derivatives. METHODS: A PubMed/Google Scholar search was conducted using the term "furfuryl palmitate" (and its derivatives, including AR-GG27® ) combined with "skin," "atopic dermatitis," and "atopic eczema...
May 22, 2018: Dermatology and Therapy
https://www.readbyqxmd.com/read/29789997/non-gaussian-methods-for-causal-structure-learning
#14
REVIEW
Shohei Shimizu
Causal structure learning is one of the most exciting new topics in the fields of machine learning and statistics. In many empirical sciences including prevention science, the causal mechanisms underlying various phenomena need to be studied. Nevertheless, in many cases, classical methods for causal structure learning are not capable of estimating the causal structure of variables. This is because it explicitly or implicitly assumes Gaussianity of data and typically utilizes only the covariance structure. In many applications, however, non-Gaussian data are often obtained, which means that more information may be contained in the data distribution than the covariance matrix is capable of containing...
May 22, 2018: Prevention Science: the Official Journal of the Society for Prevention Research
https://www.readbyqxmd.com/read/29789455/map-changes-and-theme-evolution-in-work-hours-a-co-word-analysis
#15
Bei Liu, Hong Chen, Xinru Huang
(1) Background: Work hours are the basic carrier impacting employees' work⁻life experience and organizational performance, and employees have greater anxiety in relation to work hours as new technology requires an increasingly faster work rhythm. However, scientific research on this topic lags far behind the practice, calling to attention the need for research on work hours from the perspective of historical evolution; (2) Methods: The Bibliometric method is used to analyze the 6364 articles and their contained 77 high-frequency keywords related to work hours from the Web of Science published between 1901 and 2017...
May 22, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29789281/internet-and-social-media-access-among-youth-experiencing-homelessness-mixed-methods-study
#16
Lauren A Houdek VonHoltz, Rosemary Frasso, Jesse M Golinkoff, Alicia J Lozano, Alexandra Hanlon, Nadia Dowshen
BACKGROUND: Youth experiencing homelessness are at a risk for a variety of adverse outcomes. Given the widespread use of the internet and social media, these new technologies may be used to address their needs and for outreach purposes. However, little is known about how this group uses these resources. OBJECTIVE: This study investigated how homeless adolescents use these technologies for general and health-related purposes, whether the scope of their use changes with housing status, and their interest in a website dedicated to youth experiencing homelessness...
May 22, 2018: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/29789241/vaccines-inspiring-innovation-in-health
#17
Sonia Pagliusi, Maureen Dennehy, Hun Kim
This report covers the topics of pandemics, epidemics and partnerships, including regulatory convergence initiatives, new technologies and novel vaccines, discussed by leading public and private sector stakeholders at the 18th Annual General Meeting (AGM) of the Developing Countries Vaccine Manufacturers' Network (DCVMN). Contributions of Gavi and the vaccine industry from emerging countries to the growing global vaccine market, by improving the supply base from manufacturers in developing countries and contributing to 58% of doses, were highlighted...
May 19, 2018: Vaccine
https://www.readbyqxmd.com/read/29788914/nutrition-care-practices-of-primary-care-providers-for-weight-management-in-multidisciplinary-primary-care-settings-in-ontario-canada-a-qualitative-study
#18
Stephanie Aboueid, Ivy Bourgeault, Isabelle Giroux
BACKGROUND: Despite the recommended guidelines on addressing diet for the management and prevention of obesity in primary care, the literature highlights that their implementation has been suboptimal. In this paper, we provide an in-depth understanding of current nutrition-related weight management practices of primary care providers (PCPs) working in relatively new multidisciplinary health care settings in Ontario. METHODS: Three types of multidisciplinary primary care settings were included (2 Family Health Teams, 3 Community Health Centres and 1 Nurse Practitioner-Led Clinic)...
May 22, 2018: BMC Family Practice
https://www.readbyqxmd.com/read/29788882/impact-of-drug-metabolism-pharmacokinetics-and-their-relevance-upon-taxus-based-drug-development
#19
Da-Cheng Hao, Guang-Bo Ge, Ping Wang, Ling Yang
Drug metabolism and pharmacokinetic (DMPK) studies of Taxus natural products, their semi-synthetic derivatives and analogs are indispensable in the optimization of lead compounds and clinical therapy. These studies can lead to development of new drug entities with improved absorption, distribution, metabolism, excretion and toxicity (ADME/T) profiles. To date, there have been no comprehensive reviews of the DMPK features of Taxus derived medicinal compounds.Natural and semi-synthetic taxanes may cause and could be affected by drug-drug interaction (DDI)...
May 22, 2018: Current Drug Metabolism
https://www.readbyqxmd.com/read/29788869/advances-in-the-tyrosinase-inhibitors-from-plant-source
#20
Marco Bonesi, Jianbo Xiao, Rosa Tundis, Francesca Aiello, Vincenzo Sicari, Monica R Loizzo
Tyrosinase is a multifunctional copper-containing oxidase which catalyses the oxidation of tyrosine to produce melanin. The alteration in melanin biosynthesis occurs in many diseases. The pigment has a protecting role against skin photo-carcinogenesis, but anomalous melanin pigmentation is an aesthetic problem in human beings. Moreover, the formation of neuromelanin in human brain could contribute to the neurodegeneration associated with Parkinson's disease. Finally, tyrosinase is also responsible of undesired browning in fruits and vegetables...
May 21, 2018: Current Medicinal Chemistry
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