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The Effects of a Plant-Based Diet and Stress Reduction Techniques on PSA Doubling Time in Prostate Cancer Recurrence
No full textBackground: Prostate cancer is the most common cancer affecting men. It is also very common for men to suffer from recurrence after primary therapy is completed. The current most commonly used therapies for prostate cancer recurrence, hormonal therapy and radiation, have significant side effects. It is known that diet influences cancer prevention, progression, and recurrence. A plant-based diet, especially when combined with stress reduction techniques, may be a useful therapeutic option with fewer side effects for men with recurrent prostate cancer. This review examines the effects of a plant-based diet and stress reduction on PSA doubling time in prostate cancer recurrence.
Methods: An exhaustive search of available medical literature was performed using MEDLINE-PubMed, Web of Science, and SagePub Journals. Keywords used included: prostate specific antigen, PSA, recurrent, doubling time, prostate-healthy diet, plant based diet, vegetable proteins, prostate cancer, and prostatic neoplasm. Studies were assessed forquality using GRADE criteria.
Results: Thirteen articles were identified with the search strategy. Four of these articles were found to be relevant, including 1 RCT and 3 observational studies. All 4 studies reported an increase in PSA doubling time; 3 of the 4 study results were found to be statistically significant. The quality of the studies ranged from low to very low and further research is necessary to follow larger groups of patients for a longer interval before these results can be extrapolated to the larger populations.
Conclusion: A plant-based diet in combination with stress reduction techniques is not a reliable method of therapy for all patients with recurrent prostate cancer. However, there is no potential for harm, and current research shows potential benefits, with some men responding better than others.
Keywords: Prostate specific antigen, recurrent, doubling time, prostate-healthy diet, plant based diet, vegetable proteins, prostate cancer, prostatic neoplas
Sharing Oregon’s Cultural Heritage: Harvesting Oregon Digital’s Collections Into the Digital Public Library of America
No full textOregon Digital, the library digital collections platform of Oregon State University and the University of Oregon, joined the Mountain West Digital Library (MWDL) and the Digital Public Library of America (DPLA) in 2016 to increase the visibility of our collections. This article discusses the process of becoming participants in the hub-network structure of the two organizations, remediating metadata in compliance with best practices, and modifications to the digital collections platforms, both locally and at MWDL, to successfully harvest over 100,000 items into DPLA
Trait Correlates of Graduate Student Success: Teaching an Old System New Tricks
No full textGraduate school applicants face many barriers to entry when attempting to gain entry to their program of choice, ranging high GPAs, acceptable GRE scores, great recommendations, and the financial ability to pay the fees associated with transcripts or applications. Despite all of these gate-keeping methods, between 10% and 66% of those students admitted to graduate programs end up leaving the program at the Master’s Level (Okahana, 2013). While there are multiple reasons for students to drop out, some researchers believe that the problem starts with these gate-keeping methods lacking reliability, going so far as to suggest that the GRE in particular only accounted for 10% of the variation in psychological programs (Bowman & Mangelsdorf, 1989; Sternberg & Williams, 1997).
In this study I drew from the research by Teodorescu, Furnham, and MacRea (2017) which examines variables related to retention and success of employees in the workplace, by measuring predictive personality traits. However, given the differences between graduate students and private-sector employees I included research from Grehan, Flanagan, and Malgady (2011) suggesting that psychology students’ success is better predicted when adding a measure of emotional intelligence. The goal being to take these measurements and observe any correlations with objective measures of success (undergraduate and graduate GPA) and a subjective measure of success consisting of four, Likert-scale questions examining participants’ beliefs regarding academic success.
Results suggested that conscientiousness was a strong predictor of success, however it was not the strongest predictor as hypothesized, suggesting a fundamental difference in the graduate student population when compared to the original study by Teodorescu et al. (2017). Additionally, while emotional intelligence did not correlate with the measures of success as seen in the study by Grehan et al. (2011), it did positively correlate with conscientiousness scores
Cortisol as Mediator of Mindfulness Training for Aggression and Burnout Among Law Enforcement Officers
No full textLaw enforcement officers (LEOs) face significant occupational stress as a regular aspect of their job and as a result are at increased risk for negative health outcomes, such as aggression and burnout. Salivary cortisol has been identified as a link between environmental stressors and aggression and burnout, and is often abnormally elevated among LEOs. Despite a clear need, studies of interventions for aggression, burnout, and cortisol among LEOs are lacking. Mindfulness training (MT) interventions have shown efficacy in reducing abnormally elevated salivary cortisol, aggression, and burnout in non-LEO populations. Mindfulness-Based Resilience Training (MBRT) is a preventive intervention developed for LEOs to reduce negative outcomes, and has demonstrated preliminary efficacy in reducing aggression and burnout in this population. The purpose of this study was to assess the role of reduced cortisol awakening response (CAR) in mediating the relationship between MBRT and improved aggression and burnout in a sample of LEOs. Results failed to provide evidence of CAR as a mediator in the proposed model, and baseline correlations revealed no significant relationship between CAR and either burnout or aggression. Limitations and directions for future research are discussed