Artículos Científicos: Envíos recientes
Mostrando ítems 21-40 de 227
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Electrical Polarization of Titanium Surfacesfor the Enhancement of Osteoblast Differentiation
(2013-08-29)Electrical stimulation has been used clinically to promote bone regeneration in cases of fractures with delayed union or nonunion, with several in vitro and in vivo reports suggesting its beneficial effects on bone formation. ... -
Global, regional, and national age-sex-specific mortality and life expectancy, 1950–2017: a systematic analysis for the Global Burden of Disease Study 2017
(2018-11-10)Background Assessments of age-specific mortality and life expectancy have been done by the UN Population Division, Department of Economics and Social Affairs (UNPOP), the United States Census Bureau, WHO, and as part of ... -
Mycobacterial Lipids Induce Calcium Mobilization and Degranulation of Mast Cells
(2018-06-13)Cells and culture conditions. Murine MCs from line C1.MC/C57.1 (C57 MC) were kindly provided by Dr. Stephen Galli (Stanford University) and cultured in Dulbecco’s modified Eagle’s medium according to standard methods (9). ... -
Population and fertility by age and sex for 195 countries and territories, 1950–2017: a systematic analysis for the Global Burden of Disease Study 2017
(2018-11-10)Background Population estimates underpin demographic and epidemiological research and are used to track progress on numerous international indicators of health and development. To date, internationally available estimates ... -
Both B-1a and B-1b cells exposed to Mycobacterium tuberculosis lipids differentiate into IgM antibody-secreting cells
(2018-02-08)Tuberculosis is an infectious disease caused by Mycobacterium tuberculosis. The cellular immune response to mycobacteria has been characterized extensively, but the antibody response remains underexplored. The present study ... -
Measuring performance on the Healthcare Access and Quality Index for 195 countries and territories and selected subnational locations: a systematic analysis from the Global Burden of Disease Study 2016
(2018-06-02)Background A key component of achieving universal health coverage is ensuring that all populations have access to quality health care. Examining where gains have occurred or progress has faltered ... -
The global burden of tuberculosis: results from the Global Burden of Disease Study 2015
(2018-03-01)Background The UN’s Sustainable Development Goals (SDGs) are grounded in the global ambition of “leaving no one behind”. Understanding today’s gains and gaps for the health-related SDGs is essential for decision makers as ... -
Compositions and methods for detecting mycobacterium
(2017-12-05)The present disclosure provides methods of detecting mycobacterium in an individual, generally involving detecting antibody to a mycobacterial lipid in a biological sample obtained from the individual. The present disclosure ... -
Measuring progress and projecting attainment on the basis of past trends of the health-related Sustainable Development Goals in 188 countries: an analysis from the Global Burden of Disease Study 2016
(2017-09-16)Background The UN’s Sustainable Development Goals (SDGs) are grounded in the global ambition of “leaving no one behind”. Understanding today’s gains and gaps for the health-related SDGs is essential for decision makers as ... -
Rough titanium alloys regulate osteoblast production of angiogenic factors
(2013-05-14)Multiple biomaterials are clinically available to spine surgeons for performing interbody fusion. Poly-ether-ether-ketone (PEEK) is used frequently for lumbar spine interbody fusion, but alternative materials are also used, ... -
Differential responses of osteoblast lineage cells to nanotopographically-modified, microroughened titaniumealuminumevanadium alloy surfaces
(2012-09-16)Surface structural modifications at the micrometer and nanometer scales have driven improved success rates of dental and orthopaedic implants by mimicking the hierarchical structure of bone. However, how initial ... -
Osteoblasts exhibit a more differentiated phenotype and increased bone morphogenetic protein production on titanium alloy substrates than on poly-ether-ether-ketone
(2012-01-12)Multiple biomaterials are clinically available to spine surgeons for performing interbody fusion. Poly-ether-ether-ketone (PEEK) is used frequently for lumbar spine interbody fusion, but alternative materials are also used, ... -
Effects of structural properties of electrospun TiO2 nanofiber meshes on their osteogenic potential
(2011-10-31)Ideal outcomes in the field of tissue engineering and regenerative medicine involve biomaterials that can enhance cell differentiation and production of local factors for natural tissue regeneration without the use of ... -
The effects of combined micron-/submicron-scale surface roughness and nanoscale features on cell proliferation and differentiation
(2011-02-08)Titanium (Ti) osseointegration is critical for the success of dental and orthopedic implants. Previous studies have shown that surface roughness at the micro- and submicro-scales promotes osseointegration by enhancing ... -
Regulating in vivo calcification of alginate microbeads
(2010-04-02)Alginate calcification has been previously reported clinically and during animal implantation; however no study has investigated the mechanism, extensively characterized the mineral, or evaluated multiple methods to regulate ... -
Global, regional, and national disability-adjusted life-years (DALYs) for 333 diseases and injuries and healthy life expectancy (HALE) for 195 countries and territories, 1990–2016: a systematic analysis for the Global Burden of Disease Study 2016
(2017-09-16)Background Measurement of changes in health across locations is useful to compare and contrast changing epidemiological patterns against health system performance and identify specific needs for resource allocation in ... -
Healthcare Access and Quality Index based on mortality from causes amenable to personal health care in 195 countries and territories, 1990–2015: a novel analysis from the Global Burden of Disease Study 2015
(2017-07-15)Background National levels of personal health-care access and quality can be approximated by measuring mortality rates from causes that should not be fatal in the presence of effective medical care (ie, amenable mortality). ... -
Ascertaining fetal Zika virus infection based on IgM antibody test in endemic settings
(2017-06-01)First, the authors' rationale to include a Zika virus (ZIKV)‐specific IgM antibody test as part of the positive case definition, despite the test's cross‐reactivity with other Flavivirus infections and immunizations, is ... -
Evaluation of phytotoxic, cytotoxic and antiparasitic in vitro activities of Borreria verticillata, a weed of Panamanian coffee crops.
(2012-01-01)In recent years, there have been significant changes in weed populations in different agricultural production systems. Coffee production is economically important in the Republic of Panama, and the specie Borreria verticillata ... -
Water quality effects of intermittent water supply in Arraiján, Panama
(2017-05-01)Intermittent drinking water supply is common in low- and middle-income countries throughout the world and can cause waterquality to degrade in the distribution system.In this study,we characterized waterquality in one study ...