Critical evaluation of stability constants for alpha-hydroxycarboxylic acid complexes with protons and metal ions and the accompanying enthalpy changes. Part II. Aliphatic 2-hydroxycarboxylic acids (IUPAC Technical Report)

Abstract Stability constants for different aliphatic 2-hydroxycarboxylic acid complexes in aqueous solutions with protons and metal ions published between 1960 and the end of 1994 have been critically evaluated

The current practice of family-centred care in Italian neonatal intensive care units: A multi-centre descriptive study

© 2018 Elsevier Ltd Objectives: To explore family-centred care practices in Italian neonatal intensive care units and describe areas for improvement. Methods: A cross-sectional, multicentre, survey was conducted using the Italian language version of “Advancing family-centred new-born intensive care: a self-assessment inventory”. The instrument is divided into 10 sections rating the status of family-centred care (1 = not at all, 5 = very well) and ranking the perceived priority for change/improvement (1 = low, 3 = high). A representative group of staff and parent for each unit were invited to complete the survey. Data was collected between January and June 2015. Correlations among unit characteristics and sections within the survey were explored. Settings: All Italian neonatal intensive care units (n = 105) were invited. Results: Forty-six (43.8%) units returned the survey. The “Leadership” section scored highest in status of family-centred care (mean = 3.45; SD 0.78) and scored highest in priority for change (mean = 2.44; SD 0.49). Section “Families as Advisors and Leaders” scored lowest both in status (mean = 1.66; SD 0.67) and in priority for change (mean = 2.09; SD 0.59). The number of discharged infants was positively correlated with many sections in priority for change (r 0.402–0.421; p <.01). Conclusion: This study showed a variability in the organisation of family-centred care practices in Italian neonatal intensive care units and the need to involve parents as partners in the care team. Although family-centred care is considered important by Italian neonatology healthcare professionals, much remains to be done to improve family-centred care practices in neonatal intensive care units in Italy

Neonatal intensive care parent satisfaction: a multicenter study translating and validating the Italian EMPATHIC-N questionnaire

Background: In Neonatal Intensive Care Units (NICUs), parent satisfaction and their experiences are fundamental to assess clinical practice and improve the quality of care delivered to infants and parents. Recently, a specific instrument, the EMpowerment of PArents in THe Intensive Care-Neonatology (EMPATHIC-N), has been developed in the Netherlands. This instrument investigated different domains of care in NICUs from a family-centered care perspective. In Italy, no rigorous instruments are available to evaluate parent satisfaction and experiences in NICU with family-centered care. The aim of this study was to translate and validate the EMPATHIC-N instrument into Italian language measuring parent satisfaction. Methods: A psychometric study was conducted in nine Italian NICUs. The hospitals were allocated across Italy: four in the North, four in Central region, one in the South. Parents whose infants were discharged from the Units were enrolled. Parents whose infants died were excluded. Results: Back-forward translation was conducted. Twelve parents reviewed the instrument to assess the cultural adaptation; none of the items fell below the cut-off of 80% agreement. A total of 186 parents of infants who were discharged from nine NICUs were invited to participate and 162 parents responded and returned the questionnaire (87%). The mean scores of the individual items varied between 4.3 and 5.9. Confirmatory factor analysis was performed and all factor loadings were statistically significant with the exception of item ‘Our cultural background was taken into account’. The items related to overall satisfaction showed a higher trend with mean values of 5.8 and 5.9. The Cronbach’s alpha’s (at domain level 0.73-0.92) and corrected item-total scale correlations revealed high reliability estimates. Conclusions: The Italian EMPATHIC-N showed to be a valid and reliable instrument measuring parent satisfaction in NICUs from a family-centered care perspective. Indeed, it had good psychometric properties, validity, and reliability. Furthermore, this instrument is fundamental for further research and internationally benchmarking

Cellular and Molecular Bases of the Initiation of Fever

All phases of lipopolysaccharide (LPS)-induced fever are mediated by prostaglandin (PG) E(2). It is known that the second febrile phase (which starts at ~1.5 h post-LPS) and subsequent phases are mediated by PGE(2) that originated in endotheliocytes and perivascular cells of the brain. However, the location and phenotypes of the cells that produce PGE(2) triggering the first febrile phase (which starts at ~0.5 h) remain unknown. By studying PGE(2) synthesis at the enzymatic level, we found that it was activated in the lung and liver, but not in the brain, at the onset of the first phase of LPS fever in rats. This activation involved phosphorylation of cytosolic phospholipase A(2) (cPLA(2)) and transcriptional up-regulation of cyclooxygenase (COX)-2. The number of cells displaying COX-2 immunoreactivity surged in the lung and liver (but not in the brain) at the onset of fever, and the majority of these cells were identified as macrophages. When PGE(2) synthesis in the periphery was activated, the concentration of PGE(2) increased both in the venous blood (which collects PGE(2) from tissues) and arterial blood (which delivers PGE(2) to the brain). Most importantly, neutralization of circulating PGE(2) with an anti-PGE(2) antibody both delayed and attenuated LPS fever. It is concluded that fever is initiated by circulating PGE(2) synthesized by macrophages of the LPS-processing organs (lung and liver) via phosphorylation of cPLA(2) and transcriptional up-regulation of COX-2. Whether PGE(2) produced at the level of the blood–brain barrier also contributes to the development of the first phase remains to be clarified

The new empiricism of the fractal fold: Rethinking monadology in digital times

A new configuration of social science is emerging in these digital times, as we tap into new kinds of data that trouble conventions regarding what constitutes the unit of analysis, and question the extent to which these data are owned or even correlated to a definitive organic and individuated subject customarily referred to as "human." These methodological shifts demand a more careful consideration of the historical lineage of empiricism and its relation to the history of science more generally. In this article, I track the historical mutations of monadology, an ontology well suited to empiricism in these digital times. Both Gilles Deleuze and Bruno Latour ascribe to variants of monadology in their proposals for a new empiricism, drawing extensively on the work of Gabriel Tarde (1843-1904), a French sociologist, judge, and author of the audacious post-humanist 1895 text Sociology and Monadology. In this article, I discuss how monadology helps us rethink research methods in these digital times. I argue that a fractal monadology re-assembles the fold with the digital, the continuous with the discrete, and ultimately offers a philosophical foundation for contemporary social science research

DNA microarray profiling of genes differentially regulated by the histone deacetylase inhibitors vorinostat and LBH589 in colon cancer cell lines

<p>Abstract</p> <p>Background</p> <p>Despite the significant progress made in colon cancer chemotherapy, advanced disease remains largely incurable and novel efficacious chemotherapies are urgently needed. Histone deacetylase inhibitors (HDACi) represent a novel class of agents which have demonstrated promising preclinical activity and are undergoing clinical evaluation in colon cancer. The goal of this study was to identify genes in colon cancer cells that are differentially regulated by two clinically advanced hydroxamic acid HDACi, vorinostat and LBH589 to provide rationale for novel drug combination partners and identify a core set of HDACi-regulated genes.</p> <p>Methods</p> <p>HCT116 and HT29 colon cancer cells were treated with LBH589 or vorinostat and growth inhibition, acetylation status and apoptosis were analyzed in response to treatment using MTS, Western blotting and flow cytometric analyses. In addition, gene expression was analyzed using the Illumina Human-6 V2 BeadChip array and Ingenuity^®Pathway Analysis.</p> <p>Results</p> <p>Treatment with either vorinostat or LBH589 rapidly induced histone acetylation, cell cycle arrest and inhibited the growth of both HCT116 and HT29 cells. Bioinformatic analysis of the microarray profiling revealed significant similarity in the genes altered in expression following treatment with the two HDACi tested within each cell line. However, analysis of genes that were altered in expression in the HCT116 and HT29 cells revealed cell-line-specific responses to HDACi treatment. In addition a core cassette of 11 genes modulated by both vorinostat and LBH589 were identified in both colon cancer cell lines analyzed.</p> <p>Conclusion</p> <p>This study identified HDACi-induced alterations in critical genes involved in nucleotide metabolism, angiogenesis, mitosis and cell survival which may represent potential intervention points for novel therapeutic combinations in colon cancer. This information will assist in the identification of novel pathways and targets that are modulated by HDACi, providing much-needed information on HDACi mechanism of action and providing rationale for novel drug combination partners. We identified a core signature of 11 genes which were modulated by both vorinostat and LBH589 in a similar manner in both cell lines. These core genes will assist in the development and validation of a common gene set which may represent a molecular signature of HDAC inhibition in colon cancer.</p