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https://www.readbyqxmd.com/read/28813101/forage-potential-of-native-ecotypes-of-paspalum-notatum-and-p-guenoarum
#1
Marcelo G Steiner, Miguel Dall'agnol, Carlos Nabinger, Simone M Scheffer-Basso, Roberto L Weiler, Carine Simioni, Maria Teresa Schifino-Wittmann, Éder A M DA Motta
The Paspalum genus includes several species that are important for livestock in Rio Grande do Sul, such as P. notatum and P. guenoarum, typical of native pastures of the Pampa biome. The aim of this study was to investigate forage production and chemical composition of four ecotypes of these species in relation to the cv. 'Pensacola' (P. notatum). Ecotypes of P. guenoarum (Azulão and Baio) and P. notatum (André da Rocha and Bagual) and the cv. 'Pensacola' were evaluated for two years, during which four cuts/year were made...
August 14, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28813052/mixed-ligand-iridium-iii-complexes-as-photodynamic-anticancer-agents
#2
Yue Zheng, Liang He, Dong-Yang Zhang, Cai-Ping Tan, Liang-Nian Ji, Zong-Wan Mao
Many phosphorescent iridium complexes are potent candidates as photodynamic therapeutic agents. In this work, a series of mixed-ligand phosphorescent iridium complexes (Ir1: [Ir(L1)(bpy)Cl](PF6)2; Ir2: [Ir(L1)(ppy)Cl](PF6); Ir3: [Ir(L2)(bpy)Cl](PF6)2; Ir4: [Ir(L2)(ppy)Cl](PF6). L1 = 2,6-bis(2-benzimidazolyl)pyridine; bpy = 2,2'-bipyridine; L2 = 2,6-bis(1-methyl-benzimidazol-2-yl)pyridine; ppy = 2-phenylpyridine) have been synthesized and characterized. These complexes display high luminescence quantum yields and long phosphorescence lifetimes...
August 16, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28813027/sulfonamide-linked-ciprofloxacin-sulfadiazine-and-amantadine-derivatives-as-a-novel-class-of-inhibitors-of-jack-bean-urease-synthesis-kinetic-mechanism-and-molecular-docking
#3
Pervaiz Ali Channar, Aamer Saeed, Fernando Albericio, Fayaz Ali Larik, Qamar Abbas, Mubashir Hassan, Hussain Raza, Sung-Yum Seo
Sulfonamide derivatives serve as an important building blocks in the drug design discovery and development (4D) process. Ciprofloxacin-, sulfadiazine- and amantadine-based sulfonamides were synthesized as potent inhibitors of jack bean urease and free radical scavengers. Molecular diversity was explored and electronic factors were also examined. All 24 synthesized compounds exhibited excellent potential against urease enzyme. Compound 3e (IC50 = 0.081 ± 0.003 µM), 6a (IC50 = 0.0022 ± 0.0002 µM), 9e (IC50 = 0...
August 16, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28813014/antibacterial-properties-of-nonwoven-wound-dressings-coated-with-manuka-honey-or-methylglyoxal
#4
Sophie E L Bulman, Giuseppe Tronci, Parikshit Goswami, Chris Carr, Stephen J Russell
Manuka honey (MH) is used as an antibacterial agent in bioactive wound dressings via direct impregnation onto a suitable substrate. MH provides unique antibacterial activity when compared with conventional honeys, owing partly to one of its constituents, methylglyoxal (MGO). Aiming to investigate an antibiotic-free antimicrobial strategy, we studied the antibacterial activity of both MH and MGO (at equivalent MGO concentrations) when applied as a physical coating to a nonwoven fabric wound dressing. When physically coated on to a cellulosic hydroentangled nonwoven fabric, it was found that concentrations of 0...
August 16, 2017: Materials
https://www.readbyqxmd.com/read/28812915/kardiovize-brno-2030-a-prospective-cardiovascular-health-study-in-central-europe-methods-baseline-findings-and-future-directions
#5
Narine K Movsisyan, Manlio Vinciguerra, Francisco Lopez-Jimenez, Šárka Kunzová, Martin Homolka, Jana Jaresova, Renata Cífková, Ondřej Sochor
Background Atherosclerotic cardiovascular disease is highly prevalent in Eastern and Central Europe, where the incidence is the highest in the world. The Kardiovize Brno 2030 study was designed as a prospective cohort study to investigate the complex relationships of cardiovascular disease and outcomes with a range of biological, psychosocial, environmental, behavioral, and economic factors in an urban population of the Czech Republic. Methods We randomly selected a 1% sample of the city of Brno residents aged 25-64 years stratified by sex and age...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28812892/designer-extracts-as-tools-to-balance-estrogenic-and-chemopreventive-activities-of-botanicals-for-women-s-health
#6
Birgit M Dietz, Shao-Nong Chen, René F Ramos Alvarenga, Huali Dong, Dejan Nikolić, Martin Biendl, Richard B van Breemen, Judy L Bolton, Guido F Pauli
Botanical dietary supplements contain multiple bioactive compounds that target numerous biological pathways. The lack of uniform standardization requirements is one reason that inconsistent clinical effects are reported frequently. The multifaceted biological interactions of active principles can be disentangled by a coupled pharmacological/phytochemical approach using specialized ("knock-out") extracts. This is demonstrated for hops, a botanical for menopausal symptom management. Employing targeted, adsorbent-free countercurrent separation, Humulus lupulus extracts were designed for pre- and postmenopausal women by containing various amounts of the phytoestrogen 8-prenylnaringenin (8-PN) and the chemopreventive constituent xanthohumol (XH)...
August 16, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28812882/aberrantly-large-single-channel-conductance-of-polyhistidine-arm-containing-protein-nanopores
#7
Avinash Kumar Thakur, Motahareh Ghahari Larimi, Kristin Gooden, Liviu Movileanu
There have been only a few studies reporting on the impact of polyhistidine affinity tags on the structure, function, and dynamics of proteins. Because of their relatively short size, they are often assumed to have little or no effect on the conformation and activity of a protein. Here, using membrane protein design and single-molecule electrophysiology, we determined that the presence of a hexahistidine arm at the N-terminus of a truncated FhuA-based protein nanopore, leaving the C-terminus untagged, produces an unusual increase in the unitary conductance up to ~8 nS in 1 M KCl...
August 16, 2017: Biochemistry
https://www.readbyqxmd.com/read/28812843/collaboration-between-researchers-and-knowledge-users-in-health-technology-assessment-a-qualitative-exploratory-study
#8
Mylène Tantchou Dipankui
BACKGROUND: Collaboration between researchers and knowledge users is increasingly promoted because it could enhance more evidence-based decision-making and practice. These complex relationships differ in form, in the particular goals they are trying to achieve, and in whom they bring together. Although much is understood about why partnerships form, relatively little is known about how collaboration works: how the collaborative process is shaped through the partners' interactions, especially in the field of health technology assessment (HTA)? This study aims at addressing this gap in the literature in the specific context of HTA...
December 16, 2016: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812833/evaluating-the-implementation-and-feasibility-of-a-web-based-tool-to-support-timely-identification-and-care-for-the-frail-population-in-primary-healthcare-settings
#9
Beverley Lawson, Tara Sampalli, Stephanie Wood, Grace Warner, Paige Moorhouse, Rick Gibson, Laurie Mallery, Fred Burge, Lisa G Bedford
BACKGROUND: Understanding and addressing the needs of frail persons is an emerging health priority for Nova Scotia and internationally. Primary healthcare (PHC) providers regularly encounter frail persons in their daily clinical work. However, routine identification and measurement of frailty is not standard practice and, in general, there is a lack of awareness about how to identify and respond to frailty. A web-based tool called the Frailty Portal was developed to aid in identifying, screening, and providing care for frail patients in PHC settings...
March 7, 2017: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812825/evaluating-global-health-partnerships-a-case-study-of-a-gavi-hpv-vaccine-application-process-in-uganda
#10
Carol Kamya, Jessica Shearer, Gilbert Asiimwe, Emily Carnahan, Nicole Salisbury, Peter Waiswa, Jennifer Brinkerhoff, Dai Hozumi
BACKGROUND: Global health partnerships have grown rapidly in number and scope, yet there has been less emphasis on their evaluation. Gavi, the Vaccine Alliance, is one such public-private partnership; in Gavi-eligible countries partnerships are dynamic networks of immunization actors who work together to support all stages and aspects of Gavi support. This paper describes a conceptual framework - the partnership framework - and analytic approach for evaluating the perceptions of partnerships' added value as well as the results from an application to one case in Uganda...
October 26, 2016: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812823/an-assessment-of-national-maternal-and-child-health-policy-makers-knowledge-and-capacity-for-evidence-informed-policy-making-in-nigeria
#11
Chigozie Jesse Uneke, Issiaka Sombie, Namoudou Keita, Virgil Lokossou, Ermel Johnson, Pierre Ongolo-Zogo
BACKGROUND: There is increasing interest globally in the use of more rigorous processes to ensure that maternal, newborn, and child health (MNCH) care recommendations are informed by the best available research evidence use. The purpose of this study was to engage Nigerian MNCH policy-makers and other stakeholders to consider issues around research to policy and practice interface and to assess their existing knowledge and capacity on the use of research evidence for policy-making and practice...
October 8, 2016: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812812/a-cost-analysis-of-the-jan-aushadhi-scheme-in-india
#12
Kanchan Mukherjee
Medicines constitute a substantial proportion of out-of-pocket (OOP) expenses in Indian households. In order to address this issue, the Government of India launched the Jan Aushadhi (Medicine for the Masses) Scheme (JAS) to provide cheap generic medicines to the patients (http://janaushadhi.gov.in/about_jan_aushadhi.html). These medicines are provided through the Jan Aushadhi stores established across the country. The objective of this study was to do a quick assessment for policy-makers regarding the objective of the JAS...
January 17, 2017: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812748/cyclometalated-iridium-iii-n-heterocyclic-carbene-complexes-as-potential-mitochondrial-anticancer-and-photodynamic-agents
#13
Yi Li, Bing Liu, Xin-Ran Lu, Meng-Feng Li, Liang-Nian Ji, Zong-Wan Mao
Metal N-heterocyclic carbene (NHC) complexes represent a promising class of anticancer therapeutic agents. In this work, four cyclometalated iridium(iii) complexes (Ir1-Ir4) containing N-heterocyclic carbene ligands have been explored as mitochondrial anticancer and photodynamic agents. These complexes are more cytotoxic than cisplatin against the cancer cells screened, can quickly penetrate into A549 cells and are mainly localized in the mitochondria. Mechanism studies show that these complexes exert their anticancer efficacy by increasing the intracellular ROS level, reducing the mitochondrial membrane potential (MMP) and inducing apoptosis...
August 16, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28812710/developmental-constraints-shape-the-evolution-of-the-nematode-mid-developmental-transition
#14
Harel Zalts, Itai Yanai
Evolutionary theory assumes that genetic variation is uniform and gradual in nature, yet morphological and gene expression studies have revealed that different life-stages exhibit distinct levels of cross-species conservation. In particular, a stage in mid-embryogenesis is highly conserved across species of the same phylum, suggesting that this stage is subject to developmental constraints, either by increased purifying selection or by a strong mutational bias. An alternative explanation, however, holds that the same 'hourglass' pattern of variation may result from increased positive selection at the earlier and later stages of development...
March 27, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812540/quantifying-transmission
#15
Mark Woolhouse
Transmissibility is the defining characteristic of infectious diseases. Quantifying transmission matters for understanding infectious disease epidemiology and designing evidence-based disease control programs. Tracing individual transmission events can be achieved by epidemiological investigation coupled with pathogen typing or genome sequencing. Individual infectiousness can be estimated by measuring pathogen loads, but few studies have directly estimated the ability of infected hosts to transmit to uninfected hosts...
July 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28812535/associating-mutations-causing-cystinuria-with-disease-severity-with-the-aim-of-providing-precision-medicine
#16
Henry J Martell, Kathie A Wong, Juan F Martin, Ziyan Kassam, Kay Thomas, Mark N Wass
BACKGROUND: Cystinuria is an inherited disease that results in the formation of cystine stones in the kidney, which can have serious health complications. Two genes (SLC7A9 and SLC3A1) that form an amino acid transporter are known to be responsible for the disease. Variants that cause the disease disrupt amino acid transport across the cell membrane, leading to the build-up of relatively insoluble cystine, resulting in formation of stones. Assessing the effects of each mutation is critical in order to provide tailored treatment options for patients...
August 11, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28812529/approaches-to-evaluate-lung-inflammation-in-translational-research
#17
David K Meyerholz, Jessica C Sieren, Amanda P Beck, Heather A Flaherty
Inflammation is a common feature in several types of lung disease and is a frequent end point to validate lung disease models, evaluate genetic or environmental impact on disease severity, or test the efficacy of new therapies. Questions relevant to a study should be defined during experimental design and techniques selected to specifically address these scientific queries. In this review, the authors focus primarily on the breadth of techniques to evaluate lung inflammation that have both clinical and preclinical applications...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28812527/cytokine-concentrations-measured-by-multiplex-assays-in-canine-peripheral-blood-samples
#18
Kristen R Richter, Amirah N Nasr, Angela M Mexas
Cytokines are known to play important roles in a wide range of pathologic conditions spanning all organ systems in every species studied. As our knowledge of the physiology of individual cytokines expands and our ability to measure multiple cytokines in smaller biological samples increases, we gain more insight into the significance and function of each cytokine and the importance of cytokine networks. Previous studies that reported measurements of cytokine concentrations from serum or plasma in dogs with infectious, autoimmune, metabolic, endocrine, and neoplastic diseases yield an appreciation for the complexity of cytokine control and potential applications for cytokine measurements in the diagnosis, prognosis, and therapy of a variety of disease conditions...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28812469/placental-pathologic-associations-with-morbidly-adherent-placenta-potential-insights-into-pathogenesis
#19
Linda M Ernst, Rebecca L Linn, Lucy Minturn, Emily S Miller
Background The pathology that underlies morbidly adherent placenta (MAP) is poorly understood. The objective of this study was to describe the placental pathology, especially implantation site pathology, associated with MAP. Methods This was a single institution, retrospective case-control study design examining placentas of patients who delivered between January 2008 and September 2013. MAP cases were defined by the need for clinical intervention at delivery beyond spontaneous placental delivery or simple manual extraction of the placenta...
September 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28812457/from-half-dead-to-being-free-resistance-to-hiv-stigma-self-disclosure-and-support-for-pmtct-hiv-care-among-couples-living-with-hiv-in-kenya
#20
Sydney A Spangler, Lisa L Abuogi, Eliud Akama, Elizabeth A Bukusi, Anna Helova, Pamela Musoke, Wafula Z Nalwa, Thomas A Odeny, Maricianah Onono, Iris Wanga, Janet M Turan
In sub-Saharan Africa, self-disclosure of HIV-positive status may be a pivotal action for improving access to prevention of mother-to-child transmission services. However, understanding of HIV stigma and disclosure, and their effects on demand for care remains incomplete - particularly in the current context of new antiretroviral therapy guidelines. The purpose of this study was to explore these issues among self-disclosed couples living in southwest Kenya. We conducted 38 in-depth interviews with HIV-positive pregnant or postpartum women and their male partners...
August 16, 2017: Culture, Health & Sexuality
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