283 research outputs found
Factors Leading to White Blood Cell Misidentification
A study done to understand what factors lead to the correct identification of white blood cells (WBCs), and what factors are misleading. Research was conducted through an online survey where respondents who are trained to read peripheral blood smears were shown pictures of white blood cells, asked to identify them, and provide their reasoning
Modeling the Effects of Stress on Risk for Psychiatric Disorders
The adverse effects of stress on health have long been known and there is a growing appreciation of the effects of stress on the risk for psychiatric disorders. In this report, we set out to add to our understanding of these issues by using mice to model the effects of stress on the brain and behavior. In the first series of studies, we demonstrate that mild chronic variable stress impairs cognitive function and that aged mice are particularly susceptible. Interestingly, we also find that stress exposure is associated with changes in the expression of several Alzheimer’s disease-related genes including a 1.5 to 2 fold increase in Bace1 in the hippocampus of young adult mice and the hippocampus, prefrontal cortex, and amygdala of aged mice. Finally, we find that exposure to environmental enrichment during stress prevents the changes in cognition, gene expression, and DNA methylation. In a second series of studies, we show that social defeat stress results in anxiety-like behaviors, depression-like behaviors, and increased baseline stress hormone levels. We then show that these effects persist long after the withdrawal of stressors thus confirming previously reported effects of chronic social stress on mood, anxiety, and HPA-axis function while also suggesting that the social defeat paradigm may be useful as a model of chronic, unremitting mental illness. Finally, we demonstrate that exposure to environmental enrichment after stress effectively reverses the changes in depression-like behavior, anxiety-like behavior, and HPA axis hyperactivity. Together, these studies reaffirm the role stress and the HPA axis in the pathogenesis of Alzheimer’s disease and affective disorders. Further, the data presented here suggest that understanding the mechanisms by which environmental enrichment effectively prevented or reversed the observed effects of stress on cognition, mood, anxiety, HPA-axis activity, gene expression, and DNA methylation will be a critically important area of future study that may ultimately provide insights into novel therapeutic targets for the treatment of Alzheimer’s disease, major depression, and other stress-related psychiatric disorders
Vegetable Variety Trials 1955 and 1956
The Oklahoma Agricultural Experiment Station periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311
Summary of Experimental Work Conducted at the Oklahoma Irrigation Station During 1948-1956
The Oklahoma Agricultural Experiment Station periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311
Gender and Racial/Ethnic Disparities: Cumulative Screening of Health Risk Indicators in 20-50 Year Olds in the United States
This study explored potential gender and racial/ethnic disparities in overall health risk related to 24 health risk indicators selected across six domains: socioeconomic, health status and health care, lifestyle, nutritional, clinical, and environmental. Using the 2003-2006 National Health and Nutrition Examination Surveys (NHANES), it evaluated cross-sectional data for 5,024 adults in the United States. Logistic regression models were developed to estimate prevalence odds ratios (PORs) adjusted for smoking, health insurance status, and age. Analyses evaluated disparities associated with 24 indicator variables of health risk, comparing females to males and four racial/ethnic groups to non-Hispanic Whites. Non-Hispanic Blacks and Mexican Americans were at greater risk for at least 50% of the 24 health risk indicators, including measures of socioeconomic status, health risk behaviors, poor/fair self-reported health status, multiple nutritional and clinical indicators, and blood lead levels. This demonstrates that cumulative health risk is unevenly distributed across racial/ethnic groups. A similarly high percentage (46%) of the risk factors was observed in females. Females as compared to males were more likely to have lower income, lower blood calcium, poor/fair self-reported health, more poor mental health days/month, higher medication usage and hospitalizations, and higher serum levels of some clinical indicators and blood cadmium. This analysis of cumulative health risk is responsive to calls for broader-based, more integrated assessment of health disparities that can help inform community assessments and public health policy
Foraging consistency of coral reef fishes across environmental gradients in the central Pacific
Perioperative mental health intervention bundle for older surgical patients: Protocol for an intervention development and feasibility study
INTRODUCTION: The perioperative period is high risk for older adults. Depression and anxiety are common perioperative problems, frequently coexisting with cognitive impairment. Older patients with these conditions are more likely than younger patients to experience postoperative delirium, long hospital stays, poor quality of life and rehospitalisation. These experiences can, in turn, exacerbate anxiety and depressive symptoms. Despite these risks, little is known about how to treat perioperative anxiety and depression among older adults.
METHODS AND ANALYSIS: We designed a feasibility study of a perioperative mental health intervention bundle to improve perioperative mental health, specifically depression and anxiety. The overarching goals of this study are twofold: first, to adapt and refine an intervention bundle comprised of behavioural activation and medication optimisation to meet the needs of older adults within three surgical patient populations (ie, orthopaedic, oncological and cardiac); and second, to test the feasibility of study procedures and intervention bundle implementation. Quantitative data on clinical outcomes such as depression, anxiety, quality of life, delirium, falls, length of stay, hospitalisation and pain will be collected and tabulated for descriptive purposes. A hybrid inductive-deductive thematic approach will be employed to analyse qualitative feedback from key stakeholders.
ETHICS AND DISSEMINATION: The study received approval from the Washington University Institutional Review Board. Results of this study will be presented in peer-reviewed journals, at professional conferences, and to our perioperative mental health advisory board.
TRIAL REGISTRATION NUMBER: NCT05110690
Vulnerable warriors: the atmospheric marketing of military and policing equipment before and after 9/11
In this article, we analyse changes in the circulation of advertisements of policing products at security expos between 1995 and 2013. While the initial aim of the research was to evidence shifts in terrorist frames in the marketing of policing equipment before and after 9/11, our findings instead suggested that what we are seeing is the rise of marketing to police as “vulnerable warriors”, law enforcement officers in need of military weapons both for their offensive capabilities and for the protection they can offer to a police force that is always under threat
Perioperative mental health intervention for depression and anxiety symptoms in older adults study protocol: Design and methods for three linked randomised controlled trials
INTRODUCTION: Preoperative anxiety and depression symptoms among older surgical patients are associated with poor postoperative outcomes, yet evidence-based interventions for anxiety and depression have not been applied within this setting. We present a protocol for randomised controlled trials (RCTs) in three surgical cohorts: cardiac, oncological and orthopaedic, investigating whether a perioperative mental health intervention, with psychological and pharmacological components, reduces perioperative symptoms of depression and anxiety in older surgical patients.
METHODS AND ANALYSIS: Adults ≥60 years undergoing cardiac, orthopaedic or oncological surgery will be enrolled in one of three-linked type 1 hybrid effectiveness/implementation RCTs that will be conducted in tandem with similar methods. In each trial, 100 participants will be randomised to a remotely delivered perioperative behavioural treatment incorporating principles of behavioural activation, compassion and care coordination, and medication optimisation, or enhanced usual care with mental health-related resources for this population. The primary outcome is change in depression and anxiety symptoms assessed with the Patient Health Questionnaire-Anxiety Depression Scale from baseline to 3 months post surgery. Other outcomes include quality of life, delirium, length of stay, falls, rehospitalisation, pain and implementation outcomes, including study and intervention reach, acceptability, feasibility and appropriateness, and patient experience with the intervention.
ETHICS AND DISSEMINATION: The trials have received ethics approval from the Washington University School of Medicine Institutional Review Board. Informed consent is required for participation in the trials. The results will be submitted for publication in peer-reviewed journals, presented at clinical research conferences and disseminated via the Center for Perioperative Mental Health website.
TRIAL REGISTRATION NUMBERS: NCT05575128, NCT05685511, NCT05697835, pre-results
The role of forensic anthropology in disaster victim identification (DVI):recent developments and future prospects
Forensic anthropological knowledge has been used in disaster victim identification (DVI) for over a century, but over the past decades, there have been a number of disaster events which have seen an increasing role for the forensic anthropologist. The experiences gained from some of the latest DVI operations have provided valuable lessons that have had an effect on the role and perceived value of the forensic anthropologist as part of the team managing the DVI process. This paper provides an overview of the ways in which forensic anthropologists may contribute to DVI with emphasis on how recent experiences and developments in forensic anthropology have augmented these contributions. Consequently, this paper reviews the value of forensic anthropological expertise at the disaster scene and in the mortuary, and discusses the way in which forensic anthropologists may use imaging in DVI efforts. Tissue-sampling strategies for DNA analysis, especially in the case of disasters with a large amount of fragmented remains, are also discussed. Additionally, consideration is given to the identification of survivors; the statistical basis of identification; the challenges related to some specific disaster scenarios; and education and training. Although forensic anthropologists can play a valuable role in different phases of a DVI operation, they never practice in isolation. The DVI process requires a multidisciplinary approach and, therefore, has a close collaboration with a range of forensic specialists
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