Still Scholarworks (A.T. Still University)
Not a member yet
2228 research outputs found
Sort by
Nursing Research in Arab Countries: Current Status, Trends, Challenges, and Opportunities
Introduction: Twenty-two Arab countries comprise the League of Arab States. While united in Arab identity, diversities among these countries exist at many levels. Conducting and publishing research in the Arabic speaking countries is an essential pillar for improving the status of the nursing profession. Purpose: The purpose of this study is to assess the current status, trends, challenges, and opportunities of nursing research in Arab countries. Methodology: An integrative review was conducted using (1) Index Medicus for the Eastern Mediterranean Regional Office Database Journals Directory (IMEMR), (2) the Iraqi Academic Scientific Journals Database (IASJD), (3) Ulrichsweb (UW), (4) The Geneva Foundation for Medical Education and Research/Middle Eastern Journals (GFMER), (5) the Nursing Journal Directory (NJD), (6) the Directory of Open Access Journals (DOAJ), and (7) Google Scholar. Journals and articles that met inclusion criteria were accessed, retrieved, reviewed, and subjected to content analysis by three authors, two of which were fluent in English, French, and Arabic languages. A third author fluent in all three languages confirmed the findings. Results: Nursing research in Arabic-speaking countries has evolved over the past decades but is still lacking compared to global nursing research. Moreover, it was found to be largely situated within academic institutions and linked to tenure and promotion requirements. Conclusion: Nursing journals in Arabic-speaking countries do not adequately represent that overall region and are limited in access
Impact of a keto diet on symptoms of Parkinson\u27s disease, biomarkers, depression, anxiety and quality of life: a longitudinal study
Aim: Evidence suggests low-carbohydrate diets (LCHF) may assist in treating neurodegenerative diseases such as Parkinson\u27s disease (PD); however, gaps exist in the literature. Patients & methods: We conducted a small 24-week pilot study to investigate the effects of an LCHF diet on motor and nonmotor symptoms, health biomarkers, anxiety, and depression in seven people with PD. We also captured patient experiences during the process (quality of life [QoL]). Results: Participants reported improved biomarkers, enhanced cognition, mood, motor and nonmotor symptoms, and reduced pain and anxiety. Participants felt improvements enhanced their QoL. Conclusion: We conclude that an LCHF intervention is safe, feasible, and potentially effective in mitigating the symptoms of this disorder. However, more extensive randomized controlled studies are needed to create generalizable recommendations
Expression of Interleukin-8, Interleukin-12 and Interleukin-13 in Esophageal Squamous Cell Carcinoma: Biomarker Potentiality and Prognostic Significance
Purpose: Interleukin-8 (IL8), Interleukin-12 (IL12) and Interleukin-13 (IL13) are cytokines that play regulatory role in cancer pathogenesis. We analysed their expression profile to evaluate as molecular biomarkers of esophageal squamous cell carcinoma (ESCC) and their association with different parameters and patient survival. Methods: Expression analysis was performed by Real time quantitative polymerase chain reaction and receiver operating characteristic (ROC) curve analysis was done. The expression profiles were associated with different clinicopathological and dietary factors. Survival and hazard analysis were also performed. Results: IL8 expression showed upregulation in tissue (p = 0.000) and blood samples (p = 0.481), IL12 expression showed downregulation in tissue samples (p = 0.064) and upregulation in blood samples (p = 0.689) and IL13 expression showed upregulation in tissue (p = 0.000) and blood samples (p = 0.006). IL13 expression in tissue showed the highest area under the curve (AUC) value (0.773) for ESCC diagnosis, followed by IL8 expression in tissue (0.704) and IL13 expression in blood (0.643). This study also reveals the correlation of studied cytokines in tissue and blood level. Different clinicopathological and dietary factors showed significant association (p \u3c 0.05) with IL8, IL12 and IL13 expression and with survival of ESCC patients. IL8 expression in blood and IL12 expression in tissue and blood showed significant association (p \u3c 0.05) with patient survival. Conclusion: Altered expression of IL8, IL12 and IL13 may be associated with ESCC progression. Overexpression of IL8 and IL13 in tissue samples may be potential biomarkers for ESCC screening. Additionally, both survival and hazard analysis data indicate the effects of different parameters on the prognosis of ESCC patients
Entrepreneurial Self-Efficacy in Occupational Therapy Graduate Students
This capstone aims to measure entrepreneurial self-efficacy in students enrolled in occupational therapy (OT) programs across the nation by sending an online survey. Occupational therapy’s profession has expressed a need for more entrepreneurs within its field. Further research into the factors that contribute to the lack of entrepreneurship in OT was performed and are described. The factor in which this capstone focuses is the first of its kind as there were no studies that have directly targeted OT graduate students as a population to measure entrepreneurial self-efficacy (ESE). By reporting on data representative of national demographics, this capstone seeks to fill an educational gap by illuminating the mindset of OT students as it relates to entrepreneurship with hopes to provide schools with a tailored approach to entrepreneurial education
Effect of Phytochemical Compounds on Trichomonas tenax, an Oral Protozoan
Abstract
Trichomonas tenax is an oral protozoan with an estimated global pooled prevalence of 17% in the human population.1 Observational studies have demonstrated a significant statistical correlation between oral colonization by T. tenax and the progression of periodontal disease.2 Proposed pathogenic mechanisms for this protozoan include the production of tissue-damaging enzymes, induction of apoptosis in human cells, and dysbiosis of the oral microbiome.3 In patients for whom metronidazole (MTZ) is contraindicated, phytochemicals may offer a viable alternative for controlling T. tenax. Various plant extracts have shown promising in vitro activity against other trichomonads, such as T. vaginalis and Tritrichomonas foetus, as reviewed by Friedman et al.4
Preparing your patient to travel the globe BrowZine Journal Cover
Abstract
Many patients who travel internationally seek medical travel advice from their primary care provider, who may feel unprepared to provide this advice. This article describes online travel medicine resources and a structured approach to a basic pretravel assessment, office evaluation, and destination-specific consultation on travel health and safety
Genetic substructure and host-specific natural selection trend across vaccine-candidate ORF-2 capsid protein of hepatitis-E virus
Abstract
Hepatitis E virus is a primary cause of acute hepatitis worldwide. The present study attempts to assess the genetic variability and evolutionary divergence among HEV genotypes. A vaccine promising capsid-protein coding ORF-2 gene sequences of HEV was evaluated using phylogenetics, model-based population genetic methods and principal component analysis. The analyses unveiled nine distinct clusters as subpopulations for six HEV genotypes. HEV-3 genotype samples stratified into four different subgroups, while HEV-4 stratified into three additional subclusters. Rabbit-infectious HEV-3ra samples constitute a distinct cluster. Pairwise analysis identified marked genetic distinction of HEV-4c and HEV-4i subgenotypes compared to other genotypes. Numerous admixed, inter and intragenotype recombinant strains were detected. The MEME method identified several ORF-2 codon sites under positive selection. Some selection signatures lead to amino acid substitutions within ORF-2, resulting in altered physicochemical features. Moreover, a pattern of host-specific adaptive signatures was identified among HEV genotypes. The analyses conclusively depict that recombination and episodic positive selection events have shaped the observed genetic diversity among different HEV genotypes. The significant genetic diversity and stratification of HEV-3 and HEV-4 genotypes into subgroups, as identified in the current study, are noteworthy and may have implications for the efficacy of anti-HEV vaccines
Forces Acting on the Foot of the American Alligator (Alligator mississippiensis) During Pedal Anchoring
This study was undertaken to explore the forces acting on the pes during pedal anchoring and to discern if pedal anchoring required the activation of the intrinsic pedal musculature. Replica feet equipped with strain gauges were moved over mud substrate, mimicking locomotion and pedal anchoring. Quantification of the substrate tracks demonstrated that they were similar to those made by freely moving Alligator, that the locomotor and pedal anchoring tracks were significantly different, and that the composition of the artificial feet significantly altered the tracks. Strain gauges revealed significantly different forces at different locations (e.g., digit vs. heel) on the pes and between locomotor and pedal anchoring motions. Collectively, the results of the present study demonstrate that the forces acting on the pes during pedal anchoring are different from those during locomotion. Furthermore, varying the composition of the feet used in this study demonstrated the importance of flexion at the metatarsal/phalangeal joints. Resistance to this flexion in living crocodylians requires active muscle contraction, meaning that pedal anchoring is an active, not passive, behavior. These results offer the first insights into the mechanics of pedal anchoring and demonstrate how technologies like 3D printing can be applied to established problems like fossil trackways
Lipidomics of homeoviscous adaptation to low temperatures in Staphylococcus aureus utilizing exogenous straight-chain unsaturated fatty acids
It is well established that Staphylococcus aureus can incorporate exogenous straight-chain unsaturated fatty acids (SCUFAs) into membrane phospho- and glyco-lipids from various sources in supplemented culture media and when growing in vivo during infection. Given the enhancement of membrane fluidity when oleic acid (C18:1Δ9) is incorporated into lipids, we were prompted to examine the effect of medium supplementation with C18:1Δ9 on growth at low temperatures. C18:1Δ9 supported the growth of a cold-sensitive, branched-chain fatty acid (BCFA)-deficient mutant at 12°C. Interestingly, we found similar results in the BCFA-sufficient parental strain, supported by the fact that the incorporation of C18:1Δ9 into the membrane increased membrane fluidity in both strains. We show that the incorporation of C18:1Δ9 and its elongation product C20:1Δ11 into membrane lipids was required for growth stimulation and relied on a functional FakAB incorporation system. Lipidomics analysis of the phosphatidylglycerol and diglycosyldiacylglycerol lipid classes revealed major impacts of C18:1Δ9 and temperature on lipid species. Growth at 12°C in the presence of C18:1Δ9 also led to increased production of the carotenoid pigment staphyloxanthin. The enhancement of growth by C18:1Δ9 is an example of homeoviscous adaptation to low temperatures utilizing an exogenous fatty acid. This may be significant in the growth of S. aureus at low temperatures in foods that commonly contain C18:1Δ9 and other SCUFAs in various forms. IMPORTANCE We show that Staphylococcus aureus can use its known ability to incorporate exogenous fatty acids to enhance its growth at low temperatures. Individual species of phosphatidylglycerols and diglycosyldiacylglycerols bearing one or two degrees of unsaturation derived from the incorporation of C18:1Δ9 at 12°C are described for the first time. In addition, enhanced production of the carotenoid staphyloxanthin occurs at low temperatures. The studies describe a biochemical reality underlying membrane biophysics. This is an example of homeoviscous adaptation to low temperatures utilizing exogenous fatty acids over the regulation of the biosynthesis of endogenous fatty acids. The studies have likely relevance to food safety in that unsaturated fatty acids may enhance the growth of S. aureus in the food environment