1,931 research outputs found
Pour Me Some Polyphenols
Polyphenols have a positive impact on the overall health of the oral cavity. They can be found in different drinks that are plant-based such as tea, coffee or products containing cocoa. They can be found in plant-based foods like fruits and vegetables. Polyphenols are able to reduce the cariogenic process is what makes them have such an importance in oral health. They play a role in systemic health. The studies provided evidence that polyphenols are able to reduce caries in individuals who are frequently consuming them.https://dune.une.edu/dh_studpost/1015/thumbnail.jp
Temperature modulates the response of the thermophilous sea urchin Arbacia lixula early life stages to CO2-driven acidification
The increasing abundances of the thermophilous black sea urchin Arbacia lixula in the Mediterranean Sea
are attributed to the Western Mediterranean warming. However, few data are available on the potential
impact of this warming on A. lixula in combination with other global stressors such as ocean acidification.
The aim of this study is to investigate the interactive effects of increased temperature and of decreased
pH on fertilization and early development of A. lixula. This was tested using a fully crossed design with
four temperatures (20, 24, 26 and 27 C) and two pH levels (pHNBS 8.2 and 7.9). Temperature and pH had
no significant effect on fertilization and larval survival (2d) for temperature <27 C. At 27 C, the
fertilization success was very low (<1%) and all larvae died within 2d. Both temperature and pH had
effects on the developmental dynamics. Temperature appeared to modulate the impact of decreasing pH
on the % of larvae reaching the pluteus stage leading to a positive effect (faster growth compared to pH
8.2) of low pH at 20 C, a neutral effect at 24 C and a negative effect (slower growth) at 26 C. These
results highlight the importance of considering a range of temperatures covering today and the future
environmental variability in any experiment aiming at studying the impact of ocean acidificatio
Patient satisfaction with E-Oral Health care in rural and remote settings: a systematic review protocol
BACKGROUND: Individuals living in rural and remote settings face oral health
problems and access-to-care barriers due to the shortage of oral health care
providers in these areas, geographic remoteness, lack of appropriate
infrastructure and lower socio-economic status. E-Oral Health technology could
mitigate these barriers by providing the delivery of some aspects of health care
and exchange of information across geographic distances. This review will
systematically evaluate the literature on patient satisfaction with received
E-Oral Health care in rural and remote communities. METHODS: This systematic
review will include interventional and observational studies in which E-Oral
Health technology is used as an intervention in rural and remote communities of
any country worldwide. Conventional oral health care will be used as a comparator
when provided. Patient satisfaction with received E-Oral Health care will be
considered as a primary outcome for this review. Cochrane Central Register of
Controlled Trials, MEDLINE, EMBASE and Global Health will be searched using a
comprehensive search strategy. Two review authors will independently screen
results to identify potentially eligible studies and independently extract the
data from the included studies. A third author will resolve any discrepancies
between reviewers. Two independent researchers will assess the risk of bias and
the Grading of Recommendations Assessment, Development, and Evaluation.
DISCUSSION: The potential implications and benefits of E-Oral Health care can
inform policymakers and health care professionals to take advantage of this
technology to address health care challenges in these areas
Accident Damage Analysis Module (ADAM) – Technical Guidance, Software tool for Consequence Analysis calculations
This report provides a technical description of the modelling and assumptions of the Accident Damage Analysis Module (ADAM) software application, which has been recently developed by the Joint Research Centre (JRC) of the European Commission (EC) to assess physical effects of an industrial accident resulting from an unintended release of a dangerous substanceJRC.E.2-Technology Innovation in Securit
Position effects of 22q13 rearrangements on candidate genes in Phelan-McDermid syndrome
Phelan-McDermid syndrome (PMS) is a multi-system disorder characterized by significant variability in clinical presentation. The genetic etiology is also variable with differing sizes of deletions in the chromosome 22q13 region and types of genetic abnormalities (e.g., terminal or interstitial deletions, translocations, ring chromosomes, or SHANK3 variants). Position effects have been shown to affect gene expression and function and play a role in the clinical presentation of various genetic conditions. This study employed a topologically associating domain (TAD) analysis approach to investigate position effects of chromosomal rearrangements on selected candidate genes mapped to 22q13 in 81 individuals with PMS. Data collected were correlated with clinical information from these individuals and with expression and metabolic profiles of lymphoblastoid cells from selected cases. The data confirmed TAD predictions for genes encompassed in the deletions and the clinical and molecular data indicated clear differences among individuals with different 22q13 deletion sizes. The results of the study indicate a positive correlation between deletion size and phenotype severity in PMS and provide evidence of the contribution of other genes to the clinical variability in this developmental disorder by reduced gene expression and altered metabolomics
Bronchiectasis Rheumatoid Overlap Syndrome Is an Independent Risk Factor for Mortality in Patients With Bronchiectasis:A Multicenter Cohort Study
BACKGROUND: This study assessed if bronchiectasis (BR) and rheumatoid arthritis (RA), when manifesting as an overlap syndrome (BROS), were associated with worse outcomes than other BR etiologies applying the Bronchiectasis Severity Index (BSI).
METHODS: Data were collected from the BSI databases of 1,716 adult patients with BR across six centers: Edinburgh, United Kingdom (608 patients); Dundee, United Kingdom (n = 286); Leuven, Belgium (n = 253); Monza, Italy (n = 201); Galway, Ireland (n = 242); and Newcastle, United Kingdom (n = 126). Patients were categorized as having BROS (those with RA and BR without interstitial lung disease), idiopathic BR, bronchiectasis-COPD overlap syndrome (BCOS), and "other" BR etiologies. Mortality rates, hospitalization, and exacerbation frequency were recorded.
RESULTS: A total of 147 patients with BROS (8.5% of the cohort) were identified. There was a statistically significant relationship between BROS and mortality, although this relationship was not associated with higher rates of BR exacerbations or BR-related hospitalizations. The mortality rate over a mean of 48 months was 9.3% for idiopathic BR, 8.6% in patients with other causes of BR, 18% for RA, and 28.5% for BCOS. Mortality was statistically higher in patients with BROS and BCOS compared with those with all other etiologies. The BSI scores were statistically but not clinically significantly higher in those with BROS compared with those with idiopathic BR (BSI mean, 7.7 vs 7.1, respectively; P < .05). Patients with BCOS had significantly higher BSI scores (mean, 10.4), Pseudomonas aeruginosa colonization rates (24%), and previous hospitalization rates (58%).
CONCLUSIONS: Both the BROS and BCOS groups have an excess of mortality. The mechanisms for this finding may be complex, but these data emphasize that these subgroups require additional study to understand this excess mortality
Impact of a Professional Identity Formation Program on Student Perceptions
In response to the call for reform in professional identity formation (PIF) (O’Brien & Irby, 2013), the University of Utah pioneered a program called RealMD which utilizes coaching and group self-discovery activities to encourage purpose and community in preparation for students’ future medical careers (Cruess, Cruess, Boudreau, Snell, & Steinert, 2014). The program focuses on 15 attitudes/skills central to identity development (Tsai, Moniz, Davis, & Chang, 2017). In this study, we explored the impact of the program on student self-perceptions.
We administered a retrospective, pre-post survey at the end of year to students (n=253), in which 111 (44%) rated perceived importance of each attitude/skill at the start and end of the year. The survey also allowed open-ended comments. Analyzing the mean gain in ratings across the 2 time periods, 14 of the 15 items increased (range =.01 to .37), with a significant (p<0.05) increase on 4 items (applying identity development to career, having a self-reflection process, creating a networking plan, and identifying an issue in healthcare to change). Comments corroborated the notable impact of being a student in the program on said attitudes/skills
The contributions of flower strips to wild bee conservation in agricultural landscapes can be predicted using pollinator habitat suitability models
1. Sowing flower strips along field edges is a widely adopted method for conserving pollinating insects in agricultural landscapes. To maximize the effect of flower strips given limited resources, we need spatially explicit tools that can prioritize their placement, and for identifying plant species to include in seed mixtures. 2. We sampled bees and plant species as well as their interactions in a semicontrolled field experiment with roadside/field edge pairs with/without a sown flower strip at 31 sites in Norway and used a regional spatial model of solitary bee species richness to test if the effect of flower strips on bee species richness was predictable from the modelled solitary bee species richness. 3. We found that sites with flower strips were more bee species rich compared to sites without flower strips and that this effect was greatest in areas that the regional solitary bee species richness model had identified to be particularly important for bees. Spatial models revealed that even within small landscapes there were pronounced differences between field edges in the predicted effect of sowing flower strips. 4. Of the plant species that attracted the most bee species, the majority mainly attracted bumblebees and only few species also attracted solitary bees. Considering both the taxonomic diversity of bees and the species richness of bees attracted by plants we suggest that seed mixes containing Hieracium spp. such as Hieracium umbellatum, Pilosella officinarum, Taraxacum spp., Trifolium repens, Lotus corniculatus, Stellaria graminea and Achillea millefolium would provide resources for diverse bee communities in our region 5. Spatial prediction models of bee diversity can be used to identify locations where flower strips are likely to have the largest effect and can thereby provide managers with an important tool for prioritizing how funding for agri-environmental schemes such as flower strips should be allocated. Such flower strips should contain plant species that are attractive to both solitary and bumblebees, and do not need to be particularly plant species rich as long as the selected plants complement each other. agri-environmental schemes, bees, flower strips, networks, pollinators, restoration, spatialpublishedVersio
Innovative Analyses Support a Role for DNA Damage and an Aberrant Cell Cycle in Myelodysplastic Syndrome Pathogenesis
We used flow cytometry to analyze the cell cycle, DNA damage, and apoptosis in hematopoietic subsets in MDS marrow. Subsets were assigned using CD45, side scatter, CD34, and CD71. Cell cycle fractions were analyzed using DRAQ 5 (DNA content) and MPM-2 (mitoses). DNA damage was assessed using p-H2A.X, and apoptosis using Annexin V. Compared to controls, MDS patients demonstrated no increased mitoses in erythroid, myeloid, or CD34+ cells. Myeloid progenitors demonstrated increased G2 cells, which with no increased mitoses suggested delayed passage through G2. Myeloid progenitors demonstrated increased p-H2A.X, consistent with DNA damage causing this delay. Annexin V reactivity was equivalent in MDS and controls. Results for each parameter varied among hematopoietic compartments, demonstrating the need to analyze compartments separately. Our results suggest that peripheral cytopenias in MDS are due to delayed cell cycle passage of marrow progenitors and that this delayed passage and leukemic progression derive from excessive DNA damage
Neutral processes related to regional bee commonness and dispersal distances are important predictors of plant–pollinator networks along gradients of climate and landscape conditions
Understanding how niche-based and neutral processes contribute to the spatial varia-tion in plant–pollinator interactions is central to designing effective pollination con-servation schemes. Such schemes are needed to reverse declines of wild bees and other pollinating insects, and to promote pollination services to wild and cultivated plants. We used data on wild bee interactions with plants belonging to the four tribes Loteae, Trifolieae, Anthemideae and either spring- or summer-flowering Cichorieae, sampled systematically along a 682 km latitudinal gradient to build models that allowed us to 1) predict occurrences of pairwise bee–flower interactions across 115 sampling locations, and 2) estimate the contribution of variables hypothesized to be related to niche-based assembly structuring processes (viz. annual mean temperature, landscape diversity, bee sociality, bee phenology and flower preferences of bees) and neutral processes (viz. regional commonness and dispersal distance to conspecifics). While neutral processes were important predictors of plant–pollinator distributions, niche-based processes were reflected in the contrasting distributions of solitary bee and bumble bees along the temperature gradient, and in the influence of bee flower preferences on the distri-bution of bee species across plant types. In particular, bee flower preferences separated bees into three main groups, albeit with some overlap: visitors to spring-flowering Cichorieae; visitors to Anthemideae and summer-flowering Cichorieae; and visitors to Trifolieae and Loteae. Our findings suggest that both neutral and niche-based pro-cesses are significant contributors to the spatial distribution of plant–pollinator inter-actions so that conservation actions in our region should be directed towards areas: Page 2 of 11near high concentrations of known occurrences of regionally rare bees; in mild climatic conditions; and that are surrounded by heterogenous landscapes. Given the observed niche-based differences, the proportion of functionally distinct plants in flower-mixes could be chosen to target bee species, or guilds, of conservation concern. Keywords: ecological networks, machine learning, plant–pollinator interactions, spatial, wild beesNeutral processes related to regional bee commonness and dispersal distances are important predictors of plant–pollinator networks along gradients of climate and landscape conditionspublishedVersionpublishedVersio
- …