453 research outputs found

    fac-[N,N′-Bis(3-chloro-2-fluoro­benzyl­idene)ethyl­enediamine]bromido­tri­carbonyl­rhenium(I)

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    In the title compound, [ReBr(C16H12Cl2F2N2)(CO)3], the Re atom is in a slightly distorted octa­hedral coordination environment with the three carbonyl ligands having a fac configuration. The diimine ligand is equatorial and is bonded to the Re centre in an N,N′-bidentate chelating fashion, with a bite angle of 77.7 (2)°. The dihedral angle between the two benzene rings is 88.7 (6)°. In the crystal structure, there are F⋯O [2.856 (9) Å], Cl⋯C [3.150 (8) Å] and O⋯C [2.984 (10) Å] contacts which are shorter than the sum of the van der Waals radii for these atoms. In addition, symmetry-related mol­ecules are linked via inter­molecular C—H⋯O, C—H⋯Br and the F⋯O inter­actions into one-dimensional chains extending along the a axis. The crystal structure is further stabilized by inter­molecular π–π inter­actions [centroid–centroid distance = 3.571 (5) Å]

    Does group prenatal care improve pregnancy outcomes?

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    It may decrease preterm births, especially among higher-risk women--minority women, women of low socioeconomic status, and adolescents (strength of recommendation [SOR]: B, 1 randomized, controlled trial [RCT] and 1 matched cohort study)

    CHARACTERISATION OF STRUCTURAL PLASTICITY OF THE VISUAL CORTEX IN PRMT8 NULL MICE?

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    Ph.DDOCTOR OF PHILOSOPH

    Masters to Doctorate: Impact of the Transition on One Occupational Therapy Program

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    Within the field of occupational therapy, the issue of transitioning from an entry-level master\u27s degree to an entry-level doctorate degree is under debate. As such, it is important to investigate the impact of the transition in order to help make educated decisions about the potential future of the profession.This study analyzed retrospective data collected from six cohorts at one Midwestern university to analyze the impact of the transition to an entry-level doctorate on diversity, admission and matriculation rates, and fieldwork reservations. No statistical difference in diversity between masters and doctorate level cohorts was found but it is of note that it approached significance (χ2 (1) = 3.32, p = 0.07). There was a slight decrease in number of total students that applied to the program (7.75%) and the number of fieldwork reservations (5.23%), however this was accounted for by a 60% increase in occupational therapy programs in the state the study took place. Results of this study provide preliminary data of how one university has succeeded in the transition to an entry-level doctorate and can be used to inform other programs as they consider this transition

    Pregnant women as an effective target for preventive periodontal intervention

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    Gingivitis and periodontitis are periodontal diseases common to all populations. Gingivitis is a non-specific infection by plaque bacteria while periodontitis is a group of diseases resulting from the interplay of different host responses to specific groups of plaque bacteria

    Transcriptional and Chemical Changes in Soybean Leaves in Response to Long-Term Aphid Colonization

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    Soybean aphids (Aphis glycines Matsumura) are specialized insects that feed on soybean (Glycine max) phloem sap. Transcriptome analyses have shown that resistant soybean plants mount a fast response that limits aphid feeding and population growth. Conversely, defense responses in susceptible plants are slower and it is hypothesized that aphids block effective defenses in the compatible interaction. Unlike other pests, aphids can colonize plants for long periods of time; yet the effect on the plant transcriptome after long-term aphid feeding has not been analyzed for any plant–aphid interaction. We analyzed the susceptible and resistant (Rag1) transcriptome response to aphid feeding in soybean plants colonized by aphids (biotype 1) for 21 days. We found a reduced resistant response and a low level of aphid growth on Rag1 plants, while susceptible plants showed a strong response consistent with pattern-triggered immunity. GO-term analyses identified chitin regulation as one of the most overrepresented classes of genes, suggesting that chitin could be one of the hemipteran-associated molecular pattern that triggers this defense response. Transcriptome analyses also indicated the phenylpropanoid pathway, specifically isoflavonoid biosynthesis, was induced in susceptible plants in response to long-term aphid feeding. Metabolite analyses corroborated this finding. Aphid-treated susceptible plants accumulated daidzein, formononetin, and genistein, although glyceollins were present at low levels in these plants. Choice experiments indicated that daidzein may have a deterrent effect on aphid feeding. Mass spectrometry imaging showed these isoflavones accumulate likely in the mesophyll cells or epidermis and are absent from the vasculature, suggesting that isoflavones are part of a non-phloem defense response that can reduce aphid feeding. While it is likely that aphid can initially block defense responses in compatible interactions, it appears that susceptible soybean plants can eventually mount an effective defense in response to long-term soybean aphid colonization

    (3E,5E)-3,5-Dibenzyl­idene-1-[3-(piperidin-1-yl)propano­yl]piperidin-4-one

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    The asymmetric unit of the title compound, C27H30N2O2, comprises two independent mol­ecules. The dihedral angles between the phenyl rings in the two mol­ecules are 55.59 (8) and 55.39 (8)°. The piperidine rings adopt chair conformations. The crystal structure is stabilized by weak inter­molecular C—H⋯O and C—H⋯N hydrogen bonds. The crystal studied was a non-merohedral twin with a domian ratio of 0.75 (2):0.25 (2)

    A Co-culture Model of PBMC and Stem Cell Derived Human Nasal Epithelium Reveals Rapid Activation of NK and Innate T Cells Upon Influenza A Virus Infection of the Nasal Epithelium

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    Background: We established an in vitro co-culture model involving H3N2-infection of human nasal epithelium with peripheral blood mononuclear cells (PBMC) to investigate their cross-talk during early H3N2 infection. Methods: Nasal epithelium was differentiated from human nasal epithelial stem/progenitor cells and cultured wtih fresh human PBMC. PBMC and supernatants were harvested after 24 and 48 h of co-culture with H3N2-infected nasal epithelium. We used flow cytometry and Luminex to characterize PBMC subpopulations, their activation and secretion of cytokine and chemokines. Results: H3N2 infection of the nasal epithelium associated with significant increase in interferons (IFN-alpha, IFN-gamma, IL-29), pro-inflammatory cytokines (TNF-alpha, BDNF, IL-3) and viral-associated chemokines (IP-10, MCP-3, I-TAC, MIG), detectable already after 24 h. This translates into rapid activation of monocytes, NK-cells and innate T-cells (MAIT and gamma delta T cells), evident with CD38+ and/or CD69+ upregulation. Conclusions: This system may contribute to in vitro mechanistic immunological studies bridging systemic models and possibly enable the development of targeted immunomodulatory therapies.Peer reviewe
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