Are high-quality firms also high-quality investments?

The relationship between corporate reputation and investment results is the subject of ongoing debate. Some argue that high-quality firms ultimately provide superior stock price performance; others counter that stock prices already reflect these firms' prospects for growth and profitability. This study advances the debate by providing fresh evidence that investing in high-quality firms yields above-average returns and that these superior returns continue for up to five years.Investments ; Stock - Prices ; Corporate profits

The Structure and Function of Alkamides in Mammalian Systems

Alkamides, or alkylamides, are fatty acid amides produced by plants from the genera Echinacea, Acmella, Spilanthes, and Heliopsis among others. Alkamides contain varying head groups, an amide moiety, and a fatty acid tail with varying numbers of carbons and double and triple bonds. Extracts from these plants have been used worldwide by native peoples for the treatment of numerous medical disorders, including bacterial and viral infections, inflammation, liver and kidney disorders, and pain. In vitro, these molecules display a variety of different activities depending on the cell type tested. Studies with neurons, macrophages and mast cells have revealed interactions between alkamides and a number of different cells surface receptors and intracellular signaling molecules. Generally, the alkamides have been found to exert suppressive effects, inhibiting cellular activation. In this report we introduce the structure of alkamides and review their effects in a number of different cellular systems. We also describe structure:function studies that have been performed with alkamides. While these studies have not as yet revealed general rules for alkamide activity, interesting insights have been revealed. The stage is set for the development of synthetic, designer alkamides with targeted in vivo activities

Production of prostaglandin E2 in response to infection with modified vaccinia Ankara virus

AbstractProstaglandin E2 (PGE2) is an arachidonic acid (AA)-derived signaling molecule that can influence host immune responses to infection or vaccination. In this study, we investigated PGE2 production in vitro by cells infected with the poxvirus vaccine strain, modified vaccinia Ankara virus (MVA). Human THP-1 cells, murine bone marrow-derived dendritic cells, and murine C3HA fibroblasts all accumulated PGE2 to high levels in culture supernatants upon infection with MVA. We also demonstrated that MVA induced the release of AA from infected cells, and this was, most unusually, independent of host cytosolic phospholipase A2 activity. The accumulation of AA and PGE2 was dependent on viral gene expression, but independent of canonical NF-κB signaling via p65/RelA. The production of PGE2 required host cyclooxygenase-2 (COX-2) activity, and COX-2 protein accumulated during MVA infection. The results of this study provide insight into a novel aspect of MVA biology that may affect the efficacy of MVA-based vaccines

Implementing community-based participatory research among African Americans with serious and persistent mental illness: A qualitative study

Community-based participatory research (CBPR) is an approach that involves community members in research, not as research participants, but as partners. However, few studies have examined CBPR projects conducted among African Americans with serious and persistent mental illness (SPMI). This article focuses specifically on the Inspiring Change (IC) model, which includes a leadership trio comprised of an academic researcher, health service provider and an African American with lived experience of SPMI. Our purpose is to investigate how the IC model shapes not only how research is conducted but how research is understood and experienced by the community. We achieve this purpose by (1) describing an innovative CBPR model and pilot projects that involved African Americans with SPMI in all stages of the research project; and (2) presenting findings from qualitative interviews conducted with CBPR team members about strengths, challenges and leadership particular to this model of CBPR, an area rarely explored in CBPR literature. With the guidance of an advisory board and the manualised IC curriculum, two CBPR teams initiated and conducted nine-month long research projects focusing on health disparities for African Americans with SPMI. Members of the two CBPR teams (n = 13), which included individuals with lived experience, service providers and researchers, completed qualitative interviews. Benefits of CBPR projects included opportunities to learn, a sense of purpose in helping others and increased trust of research participants. Challenges pertained to disorganisation of leadership, lack of transparency with compensation, time pressures and interpersonal conflicts. These challenges highlight the importance of preparing and supporting those from both academic and lived experience backgrounds in skills necessary to thrive in leadership roles for CBPR projects. &nbsp

Immunologic and pathologic characterization of a novel swine biomedical research model for eosinophilic esophagitis

Eosinophilic esophagitis (EoE) is a chronic allergy-mediated condition with an increasing incidence in both children and adults. Despite EoE's strong impact on human health and welfare, there is a large unmet need for treatments with only one recently FDA-approved medication for EoE. The goal of this study was to establish swine as a relevant large animal model for translational biomedical research in EoE with the potential to facilitate development of therapeutics. We recently showed that after intraperitoneal sensitization and oral challenge with the food allergen hen egg white protein (HEWP), swine develop esophageal eosinophilia—a hallmark of human EoE. Herein, we used a similar sensitization and challenge treatment and evaluated immunological and pathological markers associated with human EoE. Our data demonstrate that the incorporated sensitization and challenge treatment induces (i) a systemic T-helper 2 and IgE response, (ii) a local expression of eotaxin-1 and other allergy-related immune markers, (iii) esophageal eosinophilia (>15 eosinophils/0.24 mm2), and (iv) esophageal endoscopic findings including linear furrows and white exudates. Thereby, we demonstrate that our sensitization and oral challenge protocol not only induces the underlying immune markers but also the micro- and macro-pathological hallmarks of human EoE. This swine model for EoE represents a novel relevant large animal model that can drive translational biomedical research to develop urgently needed treatment strategies for EoE

SCFSlimb ubiquitin ligase suppresses condensin II-mediated nuclear reorganization by degrading Cap-H2

Condensin complexes play vital roles in chromosome condensation during mitosis and meiosis. Condensin II uniquely localizes to chromatin throughout the cell cycle and, in addition to its mitotic duties, modulates chromosome organization and gene expression during interphase. Mitotic condensin activity is regulated by phosphorylation, but mechanisms that regulate condensin II during interphase are unclear. Here, we report that condensin II is inactivated when its subunit Cap-H2 is targeted for degradation by the SCF ubiquitin ligase complex and that disruption of this process dramatically changed interphase chromatin organization. Inhibition of SCF function reorganized interphase chromosomes into dense, compact domains and disrupted homologue pairing in both cultured Drosophila cells and in vivo, but these effects were rescued by condensin II inactivation. Furthermore, Cap-H2 stabilization distorted nuclear envelopes and dispersed Cid/CENP-A on interphase chromosomes. Therefore, SCF mediated down-regulation of condensin II is required to maintain proper organization and morphology of the interphase nucleus