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https://www.readbyqxmd.com/read/28938749/the-testicular-transcriptome-associated-with-spermatogonia-differentiation-initiated-by-gonadotrophin-stimulation-in-the-juvenile-rhesus-monkey-macaca-mulatta
#1
Suresh Ramaswamy, William H Walker, Paula Aliberti, Rahil Sethi, Gary R Marshall, Alyxzandria Smith, Seyedmehdi Nourashrafeddin, Alicia Belgorosky, Uma R Chandran, Mark P Hedger, Tony M Plant
STUDY QUESTION: What is the genetic landscape within the testis of the juvenile rhesus monkey (Macaca mulatta) that underlies the decision of undifferentiated spermatogonia to commit to a pathway of differentiation when puberty is induced prematurely by exogenous LH and FSH stimulation? SUMMARY ANSWER: Forty-eight hours of gonadotrophin stimulation of the juvenile monkey testis resulted in the appearance of differentiating B spermatogonia and the emergence of 1362 up-regulated and 225 down-regulated testicular mRNAs encoding a complex network of proteins ranging from enzymes regulating Leydig cell steroidogenesis to membrane receptors, and from juxtacrine and paracrine factors to transcriptional factors governing spermatogonial stem cell fate...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28938744/an-improved-ivm-method-for-cumulus-oocyte-complexes-from-small-follicles-in-polycystic-ovary-syndrome-patients-enhances-oocyte-competence-and-embryo-yield
#2
F Sánchez, F Lolicato, S Romero, M De Vos, H Van Ranst, G Verheyen, E Anckaert, J E J Smitz
STUDY QUESTION: Are meiotic and developmental competence of human oocytes from small (2-8 mm) antral follicles improved by applying an optimized IVM method involving a prematuration step in presence of C-Type Natriuretic Peptide (CNP) followed by a maturation step in presence of FSH and Amphiregulin (AREG)? SUMMARY ANSWER: A strategy involving prematuration culture (PMC) in the presence of CNP followed by IVM using FSH + AREG increases oocyte maturation potential leading to a higher availability of Day 3 embryos and good-quality blastocysts for single embryo transfer...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28938715/the-harm-done-to-reproducibility-by-the-culture-of-null-hypothesis-significance-testing
#3
Timothy L Lash
In the last few years, stakeholders in the scientific community have raised alarms about a perceived lack of reproducibility of scientific results. In reaction, guidelines for journals have been promulgated and grant applicants have been asked to address the rigor and reproducibility of their proposed projects. Neither solution addresses a primary culprit, which is the culture of null hypothesis significance testing that dominates statistical analysis and inference. In an innovative research enterprise, selection of results for further evaluation based on null hypothesis significance testing is doomed to yield a low proportion of reproducible results and a high proportion of effects that are initially overestimated...
September 15, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28933674/critical-healthcare-management-studies-green-shoots
#4
Martin Kitchener, Aoife M McDermott, Simon Cooper
Purpose While critical approaches have enriched research in proximate fields, their impact has been less marked in studies of healthcare management. In response, the 2016 Organizational Behaviour in Health Care Conference hosted its first-ever session dedicated to the emergent field of critical healthcare management studies (CHMSs). The purpose of this paper is to present five papers selected from that conference. Design/methodology/approach In this introductory paper, the authors frame the contributions as "green shoots" in a field of CHMS which contains four main furrows of activity: questioning the taken-for-granted; moving beyond instrumentalism; reflexivity and meanings in research; and challenging structures of domination (Kitchener and Thomas, 2016)...
August 21, 2017: Journal of Health Organization and Management
https://www.readbyqxmd.com/read/28933003/research-costs-investigated-a-study-into-the-budgets-of-dutch-publicly-funded-drug-related-research
#5
Thea van Asselt, Bram Ramaekers, Isaac Corro Ramos, Manuela Joore, Maiwenn Al, Ivonne Lesman-Leegte, Maarten Postma, Pepijn Vemer, Talitha Feenstra
BACKGROUND: The costs of performing research are an important input in value of information (VOI) analyses but are difficult to assess. OBJECTIVE: The aim of this study was to investigate the costs of research, serving two purposes: (1) estimating research costs for use in VOI analyses; and (2) developing a costing tool to support reviewers of grant proposals in assessing whether the proposed budget is realistic. METHODS: For granted study proposals from the Netherlands Organization for Health Research and Development (ZonMw), type of study, potential cost drivers, proposed budget, and general characteristics were extracted...
September 20, 2017: PharmacoEconomics
https://www.readbyqxmd.com/read/28932396/research-associates-program-expanding-clinical-research-productivity-with-undergraduate-students
#6
Wirachin Hoonpongsimanont, Preet K Sahota, Nathan N Ng, Maryam J Farooqui, Bharath Chakravarthy, Bhakti Patel, Shahram Lotfipour
OBJECTIVES: Clinical research is often time-consuming and difficult to conduct in busy academic institutions. Previous studies have proposed methods to integrate undergraduate students as a means to increase research productivity. The authors aimed to describe the possibility to enhance emergency department research productivity at an academic emergency department in the United States, using undergraduate students in an Emergency Medicine Research Associates Program. METHODS: The authors described the Emergency Medicine Research Associates Program curriculum and its implementation...
2017: SAGE Open Medicine
https://www.readbyqxmd.com/read/28931244/the-importance-of-frailty-in-the-assessment-of-influenza-vaccine-effectiveness-against-influenza-related-hospitalization-in-elderly-people
#7
Melissa K Andrew, Vivek Shinde, Lingyun Ye, Todd Hatchette, François Haguinet, Gael Dos Santos, Janet E McElhaney, Ardith Ambrose, Guy Boivin, William Bowie, Ayman Chit, May ElSherif, Karen Green, Scott Halperin, Barbara Ibarguchi, Jennie Johnstone, Kevin Katz, Joanne Langley, Jason Leblanc, Mark Loeb, Donna MacKinnon-Cameron, Anne McCarthy, Allison McGeer, Jeff Powis, David Richardson, Makeda Semret, Grant Stiver, Sylvie Trottier, Louis Valiquette, Duncan Webster, Shelly A McNeil
Background: Influenza is an important cause of morbidity and mortality among older adults. Even so, effectiveness of influenza vaccine for older adults has been reported to be lower than for younger adults, and the impact of frailty on vaccine effectiveness (VE) and outcomes is uncertain. We aimed to study VE against influenza hospitalization in older adults, focusing on the impact of frailty. Methods: We report VE of trivalent influenza vaccine (TIV) in people ≥65 years of age hospitalized during the 2011-2012 influenza season using a multicenter, prospective, test-negative case-control design...
August 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28930638/use-of-telehealth-for-health-care-of-indigenous-peoples-with-chronic-conditions-a-systematic-review
#8
Sarah Fraser, Tamara Mackean, Julian Grant, Kate Hunter, Kurt Towers, Rebecca Ivers
INTRODUCTION: Telehealth may be a cost effective modality in healthcare delivery, but how well used or how appropriate it is for the care of Indigenous peoples is unclear. This review examines the evidence for telehealth in facilitating chronic conditions management with Indigenous peoples. METHODS: Databases were systematically searched for qualitative or quantitative primary research studies that investigated telehealth use for chronic conditions management with Indigenous peoples worldwide...
July 2017: Rural and Remote Health
https://www.readbyqxmd.com/read/28928689/exploring-the-possibility-of-peak-individualism-humanity-s-existential-crisis-and-an-emerging-age-of-purpose
#9
Gabriel B Grant
There is an emerging cultural narrative in the United States that we are entering an age of purpose-that millennials, more than any other generation, are searching for purpose and purposeful work (Sheahan, 2005) and that we are entering an era or economy of purpose (Hurst, 2014). For profit, non-profit, and educational institutions are perceiving and adapting to serve millennials' demand for purpose in life, specifically within the workplace (Klein et al., 2015). Yet, longitudinal studies of purpose do not exist, and millennials are also referred to as GenMe...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28928190/interdisciplinary-model-of-care-radicals-for-early-detection-and-management-of-chronic-obstructive-pulmonary-disease-copd-in-australian-primary-care-study-protocol-for-a-cluster-randomised-controlled-trial
#10
Jenifer Liang, Michael J Abramson, Nicholas Zwar, Grant Russell, Anne E Holland, Billie Bonevski, Ajay Mahal, Benjamin van Hecke, Kirsten Phillips, Paula Eustace, Eldho Paul, Kate Petrie, Sally Wilson, Johnson George
INTRODUCTION: Up to half of all smokers develop clinically significant chronic obstructive pulmonary disease (COPD). Gaps exist in the implementation and uptake of evidence-based guidelines for managing COPD in primary care. We describe the methodology of a cluster randomised controlled trial (cRCT) evaluating the efficacy and cost-effectiveness of an interdisciplinary model of care aimed at reducing the burden of smoking and COPD in Australian primary care settings. METHODS AND ANALYSIS: A cRCT is being undertaken to evaluate an interdisciplinary model of care (RADICALS - Review of Airway Dysfunction and Interdisciplinary Community-based care of Adult Long-term Smokers)...
September 18, 2017: BMJ Open
https://www.readbyqxmd.com/read/28928183/assessing-the-extent-of-drug-interactions-among-patients-with-multimorbidity-in-primary-and-secondary-care-in-the-west-midlands-uk-a-study-protocol-for-the-mixed-methods-multimorbidity-study-mimms
#11
Ruth Backman, Philip Weber, Alice M Turner, Mark Lee, Ian Litchfield
INTRODUCTION: The numbers of patients with three or more chronic conditions (multimorbidity) are increasing, and will rise to 2.9 million by 2018 in the UK alone. Currently in the UK, conditions are mainly managed using over 250 sets of single-condition guidance, which has the potential to generate conflicting recommendations for lifestyle and concurrent medication for individual patients with more than one condition. To address some of these issues, we are developing a new computer-based tool to help manage these patients more effectively...
September 18, 2017: BMJ Open
https://www.readbyqxmd.com/read/28927348/creating-a-medical-education-enterprise-leveling-the-playing-fields-of-medical-education-vs-medical-science-research-within-core-missions
#12
Satid Thammasitboon, B Lee Ligon, Geeta Singhal, Gordon E Schutze, Teri L Turner
BACKGROUND: Unlike publications of medical science research that are more readily rewarded, clinician-educators' scholarly achievements are more nebulous and under-recognized. OBJECTIVE: Create an education enterprise that empowers clinician-educators to engage in a broad range of scholarly activities and produce educational scholarship using strategic approaches to level the playing fields within an organization. DESIGN: The authors analyzed the advantages and disadvantages experienced by medical science researchers vs...
2017: Medical Education Online
https://www.readbyqxmd.com/read/28927238/factor-v-leiden-is-associated-with-increased-sperm-count
#13
T E van Mens, U N Joensen, Z Bochdanovits, A Takizawa, J Peter, N Jørgensen, P B Szecsi, J C M Meijers, H Weiler, E Rajpert-De Meyts, S Repping, S Middeldorp
STUDY QUESTION: Is the thrombophilia mutation factor V Leiden (FVL) associated with an increased total sperm count? SUMMARY ANSWER: Carriers of FVL have a higher total sperm count than non-FVL-carriers, which could not be explained by genetic linkage or by observations in a FVL-mouse model. WHAT IS KNOWN ALREADY: FVL has a high prevalence in Caucasians despite detrimental health effects. Carriers have been shown to have higher fecundity, which might partly explain this evolutionary paradox...
September 12, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28924872/-alzheimer-s-disease-from-auguste-deter-to-the-present-progress-disappointments-and-open-questions
#14
REVIEW
Johannes Pantel
AIM: The present article aims to provide a short overview of the discovery history, conceptual development, as well as on current neurobiological and pharmacological research questions in the field of Alzheimer's disease (AD). In view of the long hoped for but so far unachieved therapeutic breakthrough, this also includes a critical reflection of current research paradigms. MATERIAL AND METHODS: Starting from the first case report described by Alois Alzheimer in 1906, the historical impact of his seminal discovery is reconstructed...
September 18, 2017: Zeitschrift Für Gerontologie und Geriatrie
https://www.readbyqxmd.com/read/28923494/transformative-research-is-not-easily-predicted
#15
REVIEW
Sarah A Gravem, Silke M Bachhuber, Heather K Fulton-Bennett, Zachary H Randell, Alissa J Rickborn, Jenna M Sullivan, Bruce A Menge
Transformative research (TR) statements in scientific grant proposals have become mainstream. However, TR is defined as radically changing our understanding of a concept, causing a paradigm shift, or opening new frontiers. We argue that it is rarely possible to predict the transformative nature of research. Interviews and surveys of 78 transformative ecologists suggest that most TR began with incremental goals, while transformative potential was recognized later. Most respondents thought TR is unpredictable and should not be prioritized over 'incremental' research that typically leads to breakthroughs...
September 15, 2017: Trends in Ecology & Evolution
https://www.readbyqxmd.com/read/28920797/description-of-gastric-ulcers-and-of-their-suspected-associated-risk-factors-in-deceased-wild-equids-at-the-r%C3%A3-serve-africaine-de-sigean-france-2010-2016
#16
Benjamin Lamglait, Marielle Vandenbunder-Beltrame, Elodie Trunet, Karin Lemberger
Gastric ulcers are common in domestic horses and foals, affecting at least 90% of unmedicated racehorses in active training. Despite these high prevalences in domestic horses, literature about this condition in wild equids is almost nonexistent. The presence of gastric ulcers was evaluated at necropsy in six species of wild equids that died at the Réserve Africane de Sigean, a safari park in the south of France from 2010 to 2016. Among the 55 individuals that died during that period, a description of the gastric mucosa was available in 82% (45/55) of cases...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28920518/the-indirect-costs-of-underfunding-foreign-partners-in-global-health-research-a-case-study
#17
Johanna T Crane, Irene Andia Biraro, Tamer M Fouad, Yap Boum, David R Bangsberg
This study of a global health research partnership assesses how U.S. fiscal administrative policies impact capacity building at foreign partner institutions. We conducted a case study of a research collaboration between Mbarara University of Science and Technology (MUST) in Mbarara, Uganda, and originally the University of California San Francisco (UCSF), but now Massachusetts General Hospital (MGH). Our case study is based on three of the authors' experiences directing and working with this partnership from its inception in 2003 through 2015...
September 16, 2017: Global Public Health
https://www.readbyqxmd.com/read/28918268/a-structural-mri-study-of-excoriation-skin-picking-disorder-and-its-relationship-to-clinical-severity
#18
Michael D Harries, Samuel R Chamberlain, Sarah A Redden, Brian L Odlaug, Austin W Blum, Jon E Grant
Excoriation (skin-picking) disorder (SPD) shares symptomology with other obsessive-compulsive and related disorders. Few studies, however, have examined the neurological profile of patients with SPD. This study examined differences in cortical thickness and basal ganglia structural volumes between 20 individuals with SPD and 16 healthy controls using magnetic resonance imaging (MRI). There were no significant differences in demographic variables (age, gender, education and race) between groups. All subjects completed a structural MRI scan and completed a battery of clinical assessments focusing on SPD symptom severity, depression and anxiety symptoms, and quality of life...
September 8, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28916761/chronic-interfacing-with-the-autonomic-nervous-system-using-carbon-nanotube-cnt-yarn-electrodes
#19
Grant A McCallum, Xiaohong Sui, Chen Qiu, Joseph Marmerstein, Yang Zheng, Thomas E Eggers, Chuangang Hu, Liming Dai, Dominique M Durand
The ability to reliably and safely communicate chronically with small diameter (100-300 µm) autonomic nerves could have a significant impact in fundamental biomedical research and clinical applications. However, this ability has remained elusive with existing neural interface technologies. Here we show a new chronic nerve interface using highly flexible materials with axon-like dimensions. The interface was implemented with carbon nanotube (CNT) yarn electrodes to chronically record neural activity from two separate autonomic nerves: the glossopharyngeal and vagus nerves...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28913882/reducing-disparities-in-cancer-screening-and-prevention-through-community-based-participatory-research-partnerships-with-local-libraries-a-comprehensive-dynamic-trial
#20
Bruce D Rapkin, Elisa Weiss, David Lounsbury, Tamara Michel, Alexis Gordon, Jennifer Erb-Downward, Eilleen Sabino-Laughlin, Alison Carpenter, Carolyn E Schwartz, Linda Bulone, Margaret Kemeny
Reduction of cancer-related disparities requires strategies that link medically underserved communities to preventive care. In this community-based participatory research project, a public library system brought together stakeholders to plan and undertake programs to address cancer screening and risk behavior. This study was implemented over 48 months in 20 large urban neighborhoods, selected to reach diverse communities disconnected from care. In each neighborhood, Cancer Action Councils were organized to conduct a comprehensive dynamic trial, an iterative process of program planning, implementation and evaluation...
September 15, 2017: American Journal of Community Psychology
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