Outcomes of Aggression and Victimization in Social Welfare Services.

This study examined two significant phenomena that occur in the workplace, aggression and victimization, and their outcomes. The study's participants were 470 social workers employed by social welfare services in Israel. The examined outcomes were stress symptoms, emotional exhumation, and decline in quality of service climate. The associations between aggression, victimization, and their outcomes were examined via linear regression during Stata 14. The study found that the similar outcomes of aggression and victimization are stress symptoms and emotional exhaustion, while service climate (decline in quality) was associated only with victimization. While most studies have examined mainly victimization outcomes, the current study examined both aggression and victimization outcomes. This article sheds light on the similarities and the difference of outcomes between aggression and victimization and explicates the phenomena of workplace aggression from two important and complementary aspects of aggression and victimization. It is important to refer to either aggression or victimization while considering workplace aggression. Authors recommend for further studies to continue to investigate both aggression and victimization while researching workplace aggression outcomes.

Gut microbiota induces weight gain and inflammation in the gut and adipose tissue independent of manipulations in diet, genetics, and immune development.

Obesity and the metabolic syndrome are complex disorders resulting from multiple factors including genetics, diet, activity, inflammation, and gut microbes. Animal studies have identified roles for each of these, however the contribution(s) specifically attributed to the gut microbiota remain unclear, as studies have used combinations of genetically altered mice, high fat diet, and/or colonization of germ-free mice, which have an underdeveloped immune system. We investigated the role(s) of the gut microbiota driving obesity and inflammation independent of manipulations in diet and genetics in mice with fully developed immune systems. We demonstrate that the human obese gut microbiota alone was sufficient to drive weight gain, systemic, adipose tissue, and intestinal inflammation, but did not promote intestinal barrier leak. The obese microbiota induced gene expression promoting caloric uptake/harvest but was less effective at inducing genes associated with mucosal immune responses. Thus, the obese gut microbiota is sufficient to induce weight gain and inflammation.

Microfluidic device facilitates in vitro modeling of human neonatal necrotizing enterocolitis-on-a-chip.

Necrotizing enterocolitis (NEC) is a deadly gastrointestinal disease of premature infants that is associated with an exaggerated inflammatory response, dysbiosis of the gut microbiome, decreased epithelial cell proliferation, and gut barrier disruption. We describe an in vitro model of the human neonatal small intestinal epithelium (Neonatal-Intestine-on-a-Chip) that mimics key features of intestinal physiology. This model utilizes intestinal enteroids grown from surgically harvested intestinal tissue from premature infants and cocultured with human intestinal microvascular endothelial cells within a microfluidic device. We used our Neonatal-Intestine-on-a-Chip to recapitulate NEC pathophysiology by adding infant-derived microbiota. This model, named NEC-on-a-Chip, simulates the predominant features of NEC, including significant upregulation of proinflammatory cytokines, decreased intestinal epithelial cell markers, reduced epithelial proliferation, and disrupted epithelial barrier integrity. NEC-on-a-Chip provides an improved preclinical model of NEC that facilitates comprehensive analysis of the pathophysiology of NEC using precious clinical samples. This model is an advance toward a personalized medicine approach to test new therapeutics for this devastating disease.

A New Tool for Determining and Monitoring Public Healthcare Systems.

The challenge of maintaining a standard of treatment has become a core issue due to the COVID-19 outbreak, and many countries are currently addressing this issue. Since public health policymaking is a multidimensional issue, including different aspects, measures, features, and scales, and so forth, multidimensional definitions of reasonable medical treatments may improve planning and performance standards for public health systems. This study emphasizes the need to settle all of the dimensions in policymaking to aim to elicit reasonable medical treatment definitions and adequacy assessments from diverse healthcare stakeholders and offer a universally applicable reasonable medical treatment formula. Interviews of thirty-two stakeholders were qualitatively analyzed and mapped onto an innovative quadrilateral model. The findings showed that most interviewees viewed the system positively. However, they identified various lacunas-clinical/service, social/ethical, legal, and economically reasonable medical treatment aspects. A generic formula for the medical sub-services' activity accounted for these, given any specific time period and technological development. The stakeholders' positive assessment reflects an acquiescence for resource allocation and policy enforcement, rather than optimal healthcare. Nationally, this should be addressed. The quadrilateral mapping of the stakeholders enhances the translatability and generalizability of the systemic data. A comprehensive reasonable medical treatment formula will help the policymakers to optimize services, and it will render healthcare planning/implementation transparent, effective, and responsible.

Working together, thinking differently? HRM practices and trust in the health care context.

PURPOSE: Providing health care services requires collaboration between several occupations. This study aimed to reveal how three occupational groups (nurses, physicians, and administrators) perceive human resources management practices (HRMP) and whether these practices are differently associated with trust in the clinic manager. DESIGN/METHODOLOGY/APPROACH: The study included 290 employees from 29 primary care clinics, all affiliated with a health care organisation that operates in the public sector. Self-reporting questionnaires measured participants' perceptions of six HRMP across occupations and their association with trust in the clinic manager. Variation between occupational groups was analysed through one-way analysis of variance (for groups' perceptions of HRMP and trust in manager) and t-tests (for the association between perceived HRMP and trust in manager). FINDINGS: The results indicate some differences in perceived HRMP and trust across groups. Also, some differences were found across occupations regarding the relationship between HRMP and trust in the clinic manager: Nurses' perceptions significantly differed from those of physicians and administrators, yet there was no significant difference between the two latter groups. PRACTICAL IMPLICATIONS: Health care organisations should expand their human resources architecture and customise their HRMP for each occupational group based on that group's perceptions of the workplace. This can nurture trust in managers and create a climate for trust as a mechanism that encourages employees from distinct occupational groups to work together for the benefit of their clinic, organisation, and patients. ORIGINALITY/VALUE: This study contributes to the discussion about the contextualisation of HRMP, providing insights regarding perceptions of HRMP as an enabler of an organisation's strategy.

Understanding health outcomes following workplace aggression: A social exchange perspective.

This study explored health outcomes following workplace aggression among social workers in Israel. Grounded in the social exchange theory, a relationship-based perspective was used to explain the mechanism through which exposure to workplace aggression results in employee outcomes. Reports of employees and managers were analysed with respect to the impact of varied forms of aggressive behaviours perpetrated by clients and co-workers on posttraumatic stress and somatic symptoms. The intervening effects on symptoms of two forms of perceived organisational support, organisational procedural support and interpersonal co-worker support operationalised as team trust were examined. Overall, 548 employees and 89 managers in 31 social services departments completed self-report questionnaires. Results revealed positive associations between exposure to both co-worker and client aggression, and posttraumatic stress and somatic symptoms. Importantly, while perceived organisational support is often equated with social support, this study found that two elements, organisational procedural support and team trust, had differing impacts on somatic and posttraumatic stress symptoms following WPA. Specifically, team trust was negatively associated with symptoms, while organisational procedural support showed no effect. This study has important implications for timely prevention measures to deal with workplace aggressions and valuable directions for future studies.

Mental Health Perspectives Among Black Americans Receiving Services From a Church-Affiliated Mental Health Clinic.

Black Americans face substantial barriers to mental health services that are due, in part, to historical and contemporary issues of anti-Black racism. Identifying novel models of care that increase access and engagement in mental health services is important. One such model was developed by a predominantly Black church in Harlem, New York City, which built a free mental health clinic to serve the surrounding community. However, treatment barriers and facilitators of this care model have not been reported. Therefore, the authors conducted a qualitative study to identify Black Americans' (N=15) perspectives of their experiences seeking and receiving care from this church-affiliated mental health clinic and the role of the church in promoting mental health service utilization. Treatment facilitators included health care that was free of charge, services affiliated with a trusted institution, and access to culturally competent care that integrated their faith perspectives. Participants perceived the churches as having the potential to provide psychoeducation, destigmatization, and connection to mental health services. The perspectives shared suggest that this novel model of care may address several barriers to mental health care faced by some Black American populations.

Interleukin-22 signaling attenuates necrotizing enterocolitis by promoting epithelial cell regeneration.

Necrotizing enterocolitis (NEC) is a deadly intestinal inflammatory disorder that primarily affects premature infants and lacks adequate therapeutics. Interleukin (IL)-22 plays a critical role in gut barrier maintenance, promoting epithelial regeneration, and controlling intestinal inflammation in adult animal models. However, the importance of IL-22 signaling in neonates during NEC remains unknown. We investigated the role of IL-22 in the neonatal intestine under homeostatic and inflammatory conditions by using a mouse model of NEC. Our data reveal that Il22 expression in neonatal murine intestine is negligible until weaning, and both human and murine neonates lack IL-22 production during NEC. Mice deficient in IL-22 or lacking the IL-22 receptor in the intestine display a similar susceptibility to NEC, consistent with the lack of endogenous IL-22 during development. Strikingly, treatment with recombinant IL-22 during NEC substantially reduces inflammation and enhances epithelial regeneration. These findings may provide a new therapeutic strategy to attenuate NEC.

Engaging African American Clergy and Community Members to Increase Access to Evidence-Based Practices for Depression.

African American clergy provide informal counseling for community members with depression. Through a qualitative case study with two African American clergy and 25 community members in New York City, the authors explored perspectives on training clergy in interpersonal counseling (IPC). Data were analyzed by using thematic analysis. Results were grouped into three themes: mistrust of institutions, depression stigma, and feasibility of training clergy in IPC. Clergy members wanted IPC training but did not want to counsel more people. Thus, training clergy may be insufficient to reduce racial disparities in access to evidence-based depression services.

Indole-3-Carbinol-Dependent Aryl Hydrocarbon Receptor Signaling Attenuates the Inflammatory Response in Experimental Necrotizing Enterocolitis.

Necrotizing enterocolitis (NEC) causes significant morbidity and mortality in premature infants; therefore, the identification of therapeutic and preventative strategies against NEC remains a high priority. The ligand-dependent transcription factor aryl hydrocarbon receptor (AhR) is well known to contribute to the regulation of intestinal microbial communities and amelioration of intestinal inflammation. However, the role of AhR signaling in NEC is unclear. Experimental NEC was induced in 4-d-old wild-type mice or mice lacking AhR expression in the intestinal epithelial cells or AhR expression in CD11c+ cells (AhRΔCD11c) by subjecting animals to twice daily hypoxic stress and gavage feeding with formula supplemented with LPS and enteric bacteria. During NEC, compared with wild-type mice treated with vehicle, littermates treated with an AhR proligand, indole-3-carbinol, had reduced expression of Il1b and Marco, a scavenger receptor that mediates dendritic cell activation and the recognition and clearance of bacterial pathogens by macrophages. Furthermore, indole-3-carbinol treatment led to the downregulation of genes involved in cytokine and chemokine, as revealed by pathway enrichment analysis. AhR expression in the intestinal epithelial cells and their cre-negative mouse littermates were similarly susceptible to experimental NEC, whereas AhRΔCD11c mice with NEC exhibited heightened inflammatory responses compared with their cre-negative mouse littermates. In seeking to determine the mechanisms involved in this increased inflammatory response, we identified the Tim-4- monocyte-dependent subset of macrophages as increased in AhRΔCD11c mice compared with their cre-negative littermates. Taken together, these findings demonstrate the potential for AhR ligands as a novel immunotherapeutic approach to the management of this devastating disease.

Ethics Review Boards for Research With Human Participants: Past, Present, and Future.

The debate around ethics review boards (IRBs) has assumed an increasingly central place in academic practice and discourse. In this article, we summarize a unique workshop (study-group) that convened at the University of Haifa, attended by 27 academics from around the globe, representing nine countries in four continents. The participants presented data and points of view, which served as the basis for an open, interdisciplinary discussion. The group developed a set of recommendations, including working toward a transition from a review system to an advisory and validation system; focusing on respectful research approach to participants, rather than "ethical" research; building a procedure that focuses on feedback, rather than the process itself; recognizing that a unified examination need not necessarily be standardized; and constructing a feedback procedure in which researchers can respond to the review of their research.

Goblet cell associated antigen passages support the induction and maintenance of oral tolerance.

Tolerance to innocuous antigens from the diet and the commensal microbiota is a fundamental process essential to health. Why tolerance is efficiently induced to substances arising from the hostile environment of the gut lumen is incompletely understood but may be related to how these antigens are encountered by the immune system. We observed that goblet cell associated antigen passages (GAPs), but not other pathways of luminal antigen capture, correlated with the acquisition of luminal substances by lamina propria (LP) antigen presenting cells (APCs) and with the sites of tolerance induction to luminal antigens. Strikingly this role extended beyond antigen delivery. The GAP function of goblet cells facilitated maintenance of pre-existing LP T regulatory cells (Tregs), imprinting LP-dendritic cells with tolerogenic properties, and facilitating LP macrophages to produce the immunomodulatory cytokine IL-10. Moreover, tolerance to dietary antigen was impaired in the absence of GAPs. Thus, by delivering luminal antigens, maintaining pre-existing LP Tregs, and imprinting tolerogenic properties on LP-APCs GAPs support tolerance to substances encountered in the hostile environment of the gut lumen.

Triple versus double antithrombotic therapy in patients with atrial fibrillation and stent implantation: a meta­analysis of randomized trials.

BACKGROUND: Appropriate double (DT) and triple (TT) antithrombotic therapy in patients with atrial fibrillation and stent implantation is unclear. AIM: The aim of the study was to perform a meta­analysis of studies comparing DT and TT in patients with atrial fibrillation and stent implantation. METHODS: Of the 450 reports, 5 randomized trials were included in the meta­analysis: WOEST, ISAR­REACT, PIONEER AF­PCI, RE­DUAL PCI, and AUGUSTUS, with a total of 9931 patients. RESULTS: Treatment efficacy, as assessed by the incidence of major adverse cardiac events, did not differ significantly between both therapeutic strategies: 8.98% for DT vs 8.71% for TT (odds ratio [OR], 1.02; 95% CI, 0.86-1.21). The incidence of hemorrhagic complications was significantly lower in patients treated with DT than TT (13.1% and 21.0%, respectively; OR, 0.57; 95% CI, 0.47-0.70). In over 90% of patients, DT included clopidogrel along with an oral anticoagulant (non-vitamin K antagonist oral anticoagulant or vitamin K antagonist). CONCLUSIONS: The results of our meta­analysis are clearly in line with the current trend of the fastest possible reduction in the use of TT in favor of DT. Almost half lower risk of hemorrhagic complications during DT compared with TT, with similar efficacy of the 2 strategies, provides an argument for the wider use of DT in patients with AF and stent implantation.

Diffusion tensor imaging measures of white matter compared to myelin basic protein immunofluorescence in tissue cleared intact brains.

We provide datasets from combined ex vivo diffusion tensor imaging (DTI) and Clear Lipid-exchanged, Anatomically Rigid, Imaging/immunostaining compatible, Tissue hYdrogel (CLARITY) performed on intact mouse brains. DTI-derived measures of fractional anisotropy (FA), radial diffusivity (RD), and axial diffusivity (AD) were compared to antibody-based labeling of myelin basic protein (MBP), as measured by fluorescence microscopy. We used a customized CLARITY hydrogel solution to facilitate whole brain tissue clearing and subsequent immunolabeling. We describe how CLARITY was made compatible with magnetic resonance imaging with the intention of facilitating future multimodal imaging studies that may combine noninvasive imaging with 3D immunohistochemistry. These data and methods are related to the accompanying research article entitled, 'The role of myelination in measures of white matter integrity: Combination of diffusion tensor imaging and two-photon microscopy of CLARITY intact brains' (E.H. Chang, M. Argyelan, M. Aggarwal, T-S. Chandon, K.H. Karlsgodt, S. Mori, A.K. Malhotra, 2016) [1].

The role of myelination in measures of white matter integrity: Combination of diffusion tensor imaging and two-photon microscopy of CLARITY intact brains.

Diffusion tensor imaging (DTI) is used extensively in neuroscience to noninvasively estimate white matter (WM) microarchitecture. However, the diffusion signal is inherently ambiguous because it infers WM structure from the orientation of water diffusion and cannot identify the biological sources of diffusion changes. To compare inferred WM estimates to directly labeled axonal elements, we performed a novel within-subjects combination of high-resolution ex vivo DTI with two-photon laser microscopy of intact mouse brains rendered optically transparent by Clear Lipid-exchanged, Anatomically Rigid, Imaging/immunostaining compatible, Tissue hYdrogel (CLARITY). We found that myelin basic protein (MBP) immunofluorescence significantly correlated with fractional anisotropy (FA), especially in WM regions with coherent fiber orientations and low fiber dispersion. Our results provide evidence that FA is particularly sensitive to myelination in WM regions with these characteristics. Furthermore, we found that radial diffusivity (RD) was only sensitive to myelination in a subset of WM tracts, suggesting that the association of RD with myelin should be used cautiously. This combined DTI-CLARITY approach illustrates, for the first time, a framework for using brain-wide immunolabeling of WM targets to elucidate the relationship between the diffusion signal and its biological underpinnings. This study also demonstrates the feasibility of a within-subject combination of noninvasive neuroimaging and tissue clearing techniques that has broader implications for neuroscience research.

Postnatal neurodevelopmental expression and glutamate-dependent regulation of the ZNF804A rodent homologue.

The zinc finger protein ZNF804A rs1344706 variant is a replicated genome-wide significant risk variant for schizophrenia and bipolar disorder. While its association with altered brain structure and cognition in patients and healthy risk allele carriers is well documented, the characteristics and function of the gene in the brain remains poorly understood. Here, we used in situ hybridization to determine mRNA expression levels of the ZNF804A rodent homologue, Zfp804a, across multiple postnatal neurodevelopmental time points in the rat brain. We found changes in Zfp804a expression in the rat hippocampus, frontal cortex, and thalamus across postnatal neurodevelopment. Zfp804a mRNA peaked at postnatal day (P) 21 in hippocampal CA1 and DG regions and was highest in the lower cortical layers of frontal cortex at P1, possibly highlighting a role in developmental migration. Using immunofluorescence, we found that Zfp804a mRNA and ZFP804A co-localized with neurons and not astrocytes. In primary cultured cortical neurons, we found that Zfp804a expression was significantly increased when neurons were exposed to glutamate [20µM], but this increase was blocked by the N-methyl-d-aspartate receptor (NMDAR) antagonist MK-801. Expression of Comt, Pde4b, and Drd2, genes previously shown to be regulated by ZNF804A overexpression, was also significantly changed in an NMDA-dependent manner. Our results describe, for the first time, the unique postnatal neurodevelopmental expression of Zfp804a in the rodent brain and demonstrate that glutamate potentially plays an important role in the regulation of this psychiatric susceptibility gene. These are critical steps toward understanding the biological function of ZNF804A in the mammalian brain.

Timed barium esophagram in achalasia types.

Relationships of timed barium esophagram (TBE) findings to achalasia types defined by high-resolution manometry (HRM) have not been elucidated. Therefore, we correlated preoperative TBE and HRM measurements in achalasia types and related these to patient symptoms and prior treatments. From 2006 to 2013, 248 achalasia patients underwent TBE and HRM before Heller myotomy. TBE height and width were recorded at 1 and 5 minutes; HRM measured lower esophageal sphincter mean basal pressure, integrated relaxation pressure (IRP), and mean esophageal body contraction amplitude. Achalasia was classified into types I (25%), II (65%), and III (9.7%). TBE height at 5 minutes was higher for I (median 8 cm; interquartile range 6-12) and II (8 cm; 8-11) than for III (1 cm; 0-7). TBE width at 5 minutes was widest (3 cm; 2-4), narrower in II (2 cm; 2-3), and narrowest in I (1 cm; 0-2), P < 0.001. Volume remaining at 1 and 5 minutes was lower in III (1 m(2) ; 0-16) than I (42 m(2) ; 17-106) and II (39 m(2) ; 15-60), highlighting poorer emptying of I and II. Increasing TBE width correlated with deteriorating morphology and function from III to II to I. Symptoms poorly correlated with TBE and HRM. Prior treatment was associated with less regurgitation, faster emptying, and lower IRP. Although TBE and HRM are correlated in many respects, the wide range of their measurements observed in this study reveals a spectrum of morphology and dysfunction in achalasia that is best characterized by the combination of these studies.

Client aggression toward social workers and social services in Israel--a qualitative analysis.

The aggressive behavior of clients toward employees in service organizations is an alarming phenomenon, which harms employees and damages the organization itself. Employees all over the public sector, especially in social service departments, are continuously exposed to aggressive behavior by clients. The focus of the current study is on understanding the short- and long-term implications of aggressive client behavior on social workers and the organization in which they operate. A qualitative approach was used to understand the perspective of the workers exposed to aggressive client behavior as well as its organizational implications. In-depth interviews were conducted with the 40 participants between February and May, 2009. The participants included district managers, agency managers, supervisors, social workers, and administrators, in 17 agencies all over the country. The study findings identified negative impacts of client aggression on several levels and on several focal areas. On the emotional, cognitive, and behavioral levels, both short-term and long-term consequences can be seen, which affect not only the attacked individual but also resonate throughout the organization. Individual events may diffuse to affect other levels of the service process by role-learning, imitation of behavior, and by noticing that the organization provides incentives for client aggression, while providing disincentives for assertiveness and self-protective actions on the part of workers.

Dexamethasone significantly attenuates sub-arachnoid hemorrhage-induced elevation in cerebrospinal fluid citrulline and leukocytes.

AIM: Cerebral vasospasm is a leading cause of death and disability following aneurysmal subarachnoid hemorrhage (SAH). Nitric oxide (NO) is a potent mediator of vasodilation, and citrulline is a known contributor to NO production. The leukocytosis inflammatory response can increase vasoconstrictive compounds that may also contribute to vasospasm. Dexamethasone is a glucocorticosteroid commonly administered after SAH, which may alter the production of leukocytes and citrulline. The goal of this project was to study the effects of dexamethasone on leukocytosis, citrulline, and angiographic vasospasm. METHODS: Experimental SAH was induced in 18 New Zealand white rabbits. Intravenous dexamethasone was administered to one group (N.=9) at 2 mg/kg/day. A placebo group (N.=9) was given a saline infusion with otherwise identical procedures. CSF citrulline, leukocytes, protein, and glucose, as well as plasma citrulline were measured at baseline and 3 days post-SAH in a blinded fashion. Basilar artery angiography was performed at baseline and repeated 3 days post-SAH. RESULTS: The change in CSF citrulline from day 0 to day 3 was significantly lower in the dexamethasone group compared to controls (P=0.002). The change in CSF white blood cells was also significantly lower (P=0.005). There was no significant change in plasma citrulline levels or angiographic vasospasm. CONCLUSION: Dexamethasone significantly decreases CSF citrulline and CSF leukocytosis after experimental SAH. It is possible this could lead to a relative vasoconstriction and vasodilation, respectively. These processes could cancel-out opposing effects of dexamethasone on cerebral vasospasm, partially contributing to the recognized, multifactorial, inconsistent effects of glucocorticoids on vasospasm.

Impedance nadir values correlate with barium bolus amount.

We examined the value of impedance monitoring in measuring bolus volume compared with videoesophagram. Eighty consecutive subjects were studied with simultaneous impedance-manometry-videoesophagram. A catheter with both an impedance electrode pair and a pressure transducer at four sites (5, 10, 15, 20 cm above lower esophageal sphincter) was passed per nares. Six 10-cc boluses of 45% barium mixed with 0.9% NaCl were swallowed at 20- to 30-second intervals. When impedance fell to below 1000 ohms, other than that occurring during administered swallows, the videofluoroscopic image corresponding to the time of impedance nadir was reviewed. If barium was present at the impedance site, barium area was calculated. The video was reviewed for the cause of abnormal barium transit causing barium presence. We found 38/80 subjects had a total of 169 impedance falls to below 1000 ohms. Ninety-seven percent (164/169) of impedance falls had barium present at the impedance site, and there was good correlation (r = 0.83, P < 0.001) between impedance nadir value and barium area. The impedance nadir value : barium area relationship was similar for the three causes of barium presence identified by video: failed bolus clearing; gastroesophageal reflux; and esophageal escape. Impedance nadir values 700-999 ohms usually had a small barium area. In contrast, nadir values <400 ohms had a large barium area covering all or most of the catheter and filling the esophagus at the impedance site. Impedance falls from >1000 ohms to a low nadir value from all forms of abnormal esophageal bolus transit imply a large bolus amount.