Hossein Seyedzadeh, Jonathan Craig, Ali Khosronejad
{"title":"On the efficacy of facial masks to suppress the spreading of pathogen-carrying saliva particles during human respiratory events: Insights gained via high-fidelity numerical modeling.","authors":"Hossein Seyedzadeh, Jonathan Craig, Ali Khosronejad","doi":"10.18103/mra.v12i5.5441","DOIUrl":"10.18103/mra.v12i5.5441","url":null,"abstract":"<p><p>Respiratory fluid dynamics is integral to comprehending the transmission of infectious diseases and the effectiveness of interventions such as face masks and social distancing. In this research, we present our recent studies that investigate respiratory particle transport via high-fidelity large eddy simulation coupled with the Lagrangian particle tracking method. Based on our numerical simulation results for human respiratory events with and without face masks, we demonstrate that facial masks could significantly suppress particle spreading. The studied respiratory events include coughing and normal breathing through mouth and nose. Using the Lagrangian particle tracking simulation results, we elucidated the transport pathways of saliva particles during inhalation and exhalation of breathing cycles, contributing to our understanding of respiratory physiology and potential disease transmission routes. Our findings underscore the importance of respiratory fluid dynamics research in informing public health strategies to reduce the spread of respiratory infections. Combining advanced mathematical modeling techniques with experimental data will help future research on airborne disease transmission dynamics and the effectiveness of preventive measures such as face masks.</p>","PeriodicalId":94137,"journal":{"name":"Medical research archives","volume":"12 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11192503/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141444049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Elizabeth Haro, Emma A Butcher, Martha L Alves, Christelle El Khoury, Alexandra Vinson, Diane M Harper
{"title":"Barriers to Cervical Cancer Screening and Satisfaction with Self-Sampling among Black Women in Michigan: a Mixed Methods Study.","authors":"Elizabeth Haro, Emma A Butcher, Martha L Alves, Christelle El Khoury, Alexandra Vinson, Diane M Harper","doi":"10.18103/mra.v12i4.5209","DOIUrl":"10.18103/mra.v12i4.5209","url":null,"abstract":"<p><strong>Background: </strong>In recent years, cervical cancer screening among Black women in the United States has declined, followed by increased incidence and mortality. We aim to evaluate the individual, sociocultural, and structural barriers to cervical cancer screening in relationship to the exam technique barriers.</p><p><strong>Methods: </strong>Participants received cervical cancer self-screening kits in the mail. They returned their samples and a quantitative survey developed from the Health Information National Trends Survey (HINTS) modules designed to address the known individual, sociocultural, and structural barriers to screening. We established the fourteen attributes of cervical cancer screening techniques from prior work. Participants then shared their experiences in a semi-structured qualitative interview informed by the Theoretical Domains Framework (TDF) to explore the answers to the survey questions. We coded themes from the interviews. Women were grouped as younger (30-45 years) and older (46-65 years).</p><p><strong>Results: </strong>Of the 41 women completing the study, 21 were in the younger age group (mean 37.3, SD 4.7), and 20 were in the older age group (56.5 (5.5)). All participants self-identified as African American/Black and were due for cervical cancer screening. Women indicated that individual, sociocultural, and structural barriers influenced their cervical cancer screening, but the most significant barrier was the speculum-based technique itself. Three positive attributes and eight negative attributes significantly differed by screening technique, favoring the self-screening technique.</p><p><strong>Conclusions: </strong>The self-screening technique for screening for cervical cancer is feasible and acceptable to this group of Black women.</p>","PeriodicalId":94137,"journal":{"name":"Medical research archives","volume":"12 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11138408/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141181747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dan Li, Yueqi Li, Ziyi Zheng, Xin Zhou, Danielle Castro, Sten H Vermund, Marie A Brault
{"title":"A Proposal of Utilizing Six Types of Involvement Model to Guide Kindergarten to 12th Grade School Parental Communication and Support During a Pandemic.","authors":"Dan Li, Yueqi Li, Ziyi Zheng, Xin Zhou, Danielle Castro, Sten H Vermund, Marie A Brault","doi":"10.18103/mra.v12i4.5178","DOIUrl":"10.18103/mra.v12i4.5178","url":null,"abstract":"<p><strong>Background: </strong>Effective communication between schools and parents Is crucial for fostering understanding, trust, and collaboration to enhance educational outcomes and student well-being, especially during crises such as the COVID-19 pandemic. Moreover, the current level of communication between schools and families is frequently insufficient, exacerbating the difficulties in parental engagement, comprehension, and certain policy implementation. This deficiency becomes even more pronounced during crises due to the added stressors. This study aims to highlight the challenges of parental engagement and communication during the pandemic and propose a viable solution for school districts and schools to enhance trust, understanding, and collaboration in schools to prepare for future crises.</p><p><strong>Method: </strong>The study employs a mixed-methods approach, Including a scoping review of literature and policies on school communication during the pandemic, a survey study conducted among the Connecticut Independent Schools, and the Integration of results from both sources. The scoping review provides key themes and frameworks, while the survey collects quantitative and qualitative data to identify challenges and concerns. The proposed solution utilizes Epstein's Six Types of Involvement Framework for school districts and schools to guide effective communication and collaboration between schools and parents.</p><p><strong>Results: </strong>The scoping review and survey findings reveal several key Issues, Including hesitant parental perception of disease control strategies, the burden on parents in supporting online learning, the lack of resources and guidance for online learning, and the absence of central communication guidelines. The proposed solution, Epstein's Six Types of Involvement Framework, addresses these challenges by emphasizing parenting, communication, volunteering, learning at home, decision-making, and community collaboration.</p><p><strong>Conclusion: </strong>The study highlights the importance of effective communication between schools and parents during crises and proposes Epstein's Six Types of Involvement Framework as a comprehensive solution. By implementing this framework, schools can foster understanding, trust, and collaboration, leading to better educational outcomes for students. The findings have implications for school administrators, policymakers, and educators seeking to improve communication during crises and can facilitate more effective communication and parental engagement beyond health crises. Further research Is needed to evaluate the effectiveness and impact of implementing the framework in real-world crises. Moreover, healthcare professionals like pediatricians, psychologists, and school nurses are crucial in disease control in schools. The study proposes using Epstein's framework to Involve them directly, enhancing collaboration and trust, and empowering them to lead efforts in safeguarding ","PeriodicalId":94137,"journal":{"name":"Medical research archives","volume":"12 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11309007/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141908745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dan Li, Jing Zhang, Xiaofen Zhang, Yifan Chang, Sten H Vermund
{"title":"Maternal and Newborn Outcomes of SARS-CoV-2/COVID-19 and Pregnancy: Parallels and Contrasts with Human Immunodeficiency Virus/Acquired Immunodeficiency Syndrome.","authors":"Dan Li, Jing Zhang, Xiaofen Zhang, Yifan Chang, Sten H Vermund","doi":"10.18103/mra.v12i4.5205","DOIUrl":"10.18103/mra.v12i4.5205","url":null,"abstract":"<p><strong>Purpose of review: </strong>Our review aims to compare and contrast Human Immunodeficiency Virus/Acquired Immunodeficiency Syndrome and SARS-CoV-2/COVID-19's impact on maternal and neonatal outcomes. We have made significant progress in Human Immunodeficiency Virus/Acquired Immunodeficiency Syndrome prevention and treatment over the last few decades. Drawing on empirical evidence with past public health crises can offer valuable insights into dealing with current and future pandemics. Therefore, it is imperative to conduct a comparative analysis of the resemblances and disparities existing between Human Immunodeficiency Virus/Acquired Immunodeficiency Syndrome and SARS-CoV-2/COVID-19.This research endeavor represents a pioneering and all-encompassing examination, aiming to discern and comprehend the parallels and contrasts in the respective impacts of SARS-CoV-2 and Human Immunodeficiency Virus on pregnancy.</p><p><strong>Recent findings: </strong>Based on the current evidence, there is no indication that pregnancy increases women's susceptibility to acquiring Human Immunodeficiency Virus or SARS-CoV-2. Nevertheless, the state of being pregnant was correlated with the worsening of diseases and their progression. Both Human Immunodeficiency Virus and SARS-CoV-2 pose increased risks of maternal mortality and several obstetric complications, including premature birth and pre-eclampsia. While the vertical transmission of Human Immunodeficiency Virus is well-established, a comprehensive understanding of the vertical transmission of SARS-CoV-2 remains elusive, emphasizing the need for further investigations. Initial data suggest low SARS-CoV-2 vertical transmission rates in the setting of proper preventative interventions and universal screening. A cesarean delivery could reduce the risk of mother-to-child transmission in Human Immunodeficiency Virus-infected women with high viral loads or poor adherence to antiretroviral therapy (ART). However, it did not offer additional protection for Human Immunodeficiency Virus-infected women who adhered to Adherence to Antiretroviral Therapy or those with COVID-19. Human Immunodeficiency Virus and SARS-CoV-2 were linked to neonatal complications such as stillbirth, low birth weight, and neonatal intensive care unit (ICU) admissions. The universal testing of both pregnant patients and neonates is an effective strategy to prevent the spread and complications of both Human Immunodeficiency Virus and SARS-CoV-2. Human Immunodeficiency Virus control largely relies on preventing vertical transmission and medications during pregnancy and postpartum, whereas safety behaviors and vaccines have proven effective in preventing SARS-CoV-2 vertical transmissions.</p><p><strong>Summary: </strong>This review aims to compare and contrast the impact of Human Immunodeficiency Virus and SARS-CoV-2 on pregnancy outcomes, vertical transmissions, delivery modalities, neonatal outcomes, and clinical management. SARS-CoV-2 and","PeriodicalId":94137,"journal":{"name":"Medical research archives","volume":"12 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11309002/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141908746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Luca Brunelli, Kee Chan, James Tabery, Warren Binford, Amy Brower
{"title":"A Children's Rights Framework for Genomic Medicine: Newborn Screening as a Use Case.","authors":"Luca Brunelli, Kee Chan, James Tabery, Warren Binford, Amy Brower","doi":"10.18103/mra.v12i3.5167","DOIUrl":"10.18103/mra.v12i3.5167","url":null,"abstract":"<p><p>The year 2023 marked the 60<sup>th</sup> anniversary of screening newborns in the United States for diseases that benefit from early identification and intervention. All around the world, the goal of NBS is to facilitate timely diagnosis and management to improve individual health outcomes in all newborns regardless of their place of birth, economic circumstances, ability to pay for treatment, and access to healthcare. Advances in technology to screen and treat disease have led to a rapid increase in the number of screened conditions, and innovations in genomics are expected to exponentially expand this number further. A system where all newborns are screened, coupled with rapid technological innovation, provides a unique opportunity to improve pediatric health outcomes and advance children's rights, including the unique rights of sick and disabled children. This is especially timely as we approach the 100<sup>th</sup> anniversary of the 1924 Geneva Declaration of the Rights of the Child, which includes children's right to healthcare, and the 1989 United Nations Convention on the Rights of the Child that expanded upon this aspect and affirmed each child's right to the highest attainable standard of health. In this manuscript, we provide background on the evolving recognition of the rights of children and the foundational rights to healthcare and non-discrimination, provide two examples that highlight issues to access and equity in newborn screening that may limit a child's right to healthcare and best possible outcomes, detail ways the current approach to newborn screening advances the rights of the child, and finally, propose that the incorporation of genomics into newborn screening presents a useful case study to recognize and uphold the rights of every child.</p>","PeriodicalId":94137,"journal":{"name":"Medical research archives","volume":"12 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11364257/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142116531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xia Jing, James J Cimino, Vimla L Patel, Yuchun Zhou, Jay H Shubrook, Chang Liu, Sonsoles De Lacalle
{"title":"Data-Driven Hypothesis Generation in Clinical Research: What We Learned from a Human Subject Study?","authors":"Xia Jing, James J Cimino, Vimla L Patel, Yuchun Zhou, Jay H Shubrook, Chang Liu, Sonsoles De Lacalle","doi":"10.18103/mra.v12i2.5132","DOIUrl":"https://doi.org/10.18103/mra.v12i2.5132","url":null,"abstract":"<p><p>Hypothesis generation is an early and critical step in any hypothesis-driven clinical research project. Because it is not yet a well-understood cognitive process, the need to improve the process goes unrecognized. Without an impactful hypothesis, the significance of any research project can be questionable, regardless of the rigor or diligence applied in other steps of the study, e.g., study design, data collection, and result analysis. In this perspective article, the authors provide a literature review on the following topics first: scientific thinking, reasoning, medical reasoning, literature-based discovery, and a field study to explore scientific thinking and discovery. Over the years, scientific thinking has shown excellent progress in cognitive science and its applied areas: education, medicine, and biomedical research. However, a review of the literature reveals the lack of original studies on hypothesis generation in clinical research. The authors then summarize their first human participant study exploring data-driven hypothesis generation by clinical researchers in a simulated setting. The results indicate that a secondary data analytical tool, VIADS-a visual interactive analytic tool for filtering, summarizing, and visualizing large health data sets coded with hierarchical terminologies, can shorten the time participants need, on average, to generate a hypothesis and also requires fewer cognitive events to generate each hypothesis. As a counterpoint, this exploration also indicates that the quality ratings of the hypotheses thus generated carry significantly lower ratings for feasibility when applying VIADS. Despite its small scale, the study confirmed the feasibility of conducting a human participant study directly to explore the hypothesis generation process in clinical research. This study provides supporting evidence to conduct a larger-scale study with a specifically designed tool to facilitate the hypothesis-generation process among inexperienced clinical researchers. A larger study could provide generalizable evidence, which in turn can potentially improve clinical research productivity and overall clinical research enterprise.</p>","PeriodicalId":94137,"journal":{"name":"Medical research archives","volume":"12 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11361316/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142116530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mallika Shekhar, Omer Iqbal, Adarsh Dharan, Hanin El-Khateeb, Kavya Jatavallabhula, Ping Bu, Charles Bouchard
{"title":"The Role of NLRP3 Inflammasome in the Pathogenesis of Stevens-Johnson Syndrome/Toxic Epidermal Necrolysis.","authors":"Mallika Shekhar, Omer Iqbal, Adarsh Dharan, Hanin El-Khateeb, Kavya Jatavallabhula, Ping Bu, Charles Bouchard","doi":"10.18103/mra.v12i1.4939","DOIUrl":"10.18103/mra.v12i1.4939","url":null,"abstract":"<p><p>Stevens Johnson Syndrome/Toxic Epidermal Necrolysis (SJS/TEN) are mainly drug-induced severe cutaneous adverse reactions with increased mortality. It also involves the eyes causing ocular surface disease leading to visual impairment and blindness. The role of NLRP3 Inflammasome in causing ocular surface disease and keratinocyte apoptosis is not fully explored. This study is focused on determining the role of NLRP3 Inflammasome in the pathogenesis of Stevens Johnson Syndrome/Toxic Epidermal Necrolysis. The NLRP3 Inflammasome plays a crucial role in the pathogenesis of Stevens Johnson Syndrome/Toxic Epidermal Necrolysis and may correlate with the degree of severity of skin detachment and ocular surface disease. This study looked at the expression of the NLRP3 Inflammasome in the skin of patients with biopsy confirm Stevens Johnson Syndrome/Toxic Epidermal Necrolysis compared to the lichen planus and normal controls by immunohistochemistry as well as observing the mitochondrial function of platelets challenged with plasma from patients with Stevens Johnson Syndrome/Toxic Epidermal Necrolysis and Normal Human Plasma using Agilent Seahorse XF Analyzer. Under a current, Loyola IRB approved protocol, 12 collected and archived unstained slides of skin and blood plasma samples from patients with biopsy confirmed Stevens Johnson Syndrome/Toxic Epidermal Necrolysis was used for this study. Immunohistochemical analysis was performed using anti-NLRP3 antibodies followed by imaging on a Delta Vision microscope. The precise roles of cytokines and chemokine receptors in severity of skin detachment has not been completely studied. The identification of the roles of NLRP3 in Stevens Johnson Syndrome/Toxic Epidermal Necrolysis would bridge the gaps in the basic understanding regarding the pathogenesis of this disease spectrum. NLRP3 Inflammasome is a potential therapeutic target and its inhibition by phytochemicals may be appropriate effective treatment strategies in the management of this condition.</p>","PeriodicalId":94137,"journal":{"name":"Medical research archives","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11257145/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141725421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SarahRose Hall, Stephanie Samani, Amelia Churillo, Lisa Freeburg, Oren Cohen, Kavya Devarakonda, Samira Khan, Kurt G Barringhaus, Neomi Shah, Francis G Spinale
{"title":"Obstructive sleep apnea alters microRNA levels: Effects of continuous positive airway pressure.","authors":"SarahRose Hall, Stephanie Samani, Amelia Churillo, Lisa Freeburg, Oren Cohen, Kavya Devarakonda, Samira Khan, Kurt G Barringhaus, Neomi Shah, Francis G Spinale","doi":"10.18103/mra.v12i1.4975","DOIUrl":"10.18103/mra.v12i1.4975","url":null,"abstract":"<p><strong>Background: </strong>Obstructive sleep apnea (OSA) has been linked to cytokine-mediated chronic inflammatory states. Continuous positive airway pressure (CPAP) is an established therapy for OSA, but its effects on inflammation remain unclear. A recent study from our group identified soluble cytokine receptors altered in OSA patients and modified by CPAP adherence. However, the upstream regulatory pathways responsible for these shifts in proinflammatory cascades with OSA and CPAP therapy remained unknown. Accordingly, this study mapped OSA and CPAP-modulated soluble cytokine receptors to specific microRNAs and then tested the hypothesis that OSA and CPAP adherence shift cytokine-related microRNA expression profiles.</p><p><strong>Study design: </strong>Plasma samples were collected from patients with OSA (n=50) at baseline and approximately 90 days after CPAP initiation and compared to referent control subjects (n=10). Patients with OSA were further divided into cohorts defined by adherence vs nonadherence to CPAP therapy. The microRNAs that mapped to soluble cytokine receptors of interest were subjected to quantitative polymerase chain reaction.</p><p><strong>Results: </strong>At baseline, increased hsa-miR-15a-5p, hsa-miR-15b-5p, hsa-miR-16-5p, hsa-miR-195-5p, hsa-miR-424-5p, hsa-miR-223-3p, and hsa-miR-223-5p were observed in patients with OSA compared to controls (p<0.05). In CPAP adherent patients (n=22), hsa-miR233-3p and hsa-miR233-5p decreased at follow-up (p<0.05) whereas there was no change in miR levels from baseline in non-adherent CPAP patients (n=28). The miRs hsa-miR233-3p and hsa-miR233-5p mapped to both proinflammatory and innate immunity activation; the inflammasome.</p><p><strong>Conclusion: </strong>A specific set of microRNAs, including hsa-miR233-3p and hsa-miR233-5p, may serve as a marker of inflammatory responses in patients with OSA, and be used to assess attenuation of inflammasome activation by CPAP.</p>","PeriodicalId":94137,"journal":{"name":"Medical research archives","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11105662/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141071968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jingjing Ye, Haitao Pan, Gregory Reaman, Satrajit Roychoudhury, Chengxing Lu, Lindsay A Renfro, Yuan Ji, Rong Liu, Ying Yuan, Weidong Zhang
{"title":"Considerations on Design and Analysis of External Control in Pediatric Oncology.","authors":"Jingjing Ye, Haitao Pan, Gregory Reaman, Satrajit Roychoudhury, Chengxing Lu, Lindsay A Renfro, Yuan Ji, Rong Liu, Ying Yuan, Weidong Zhang","doi":"10.18103/mra.v12i1.5088","DOIUrl":"10.18103/mra.v12i1.5088","url":null,"abstract":"<p><p>Pediatric cancer consists of a diverse group of rare diseases. Due to limited patient populations, standard randomized and controlled trials are often infeasible. As a result, single-arm trials are common in pediatric oncology and the use of external controls is often desirable or necessary to help generate actionable evidence and contextualize trial results. In this paper, we illustrate unique features in pediatric oncology clinical trials and describe their impact on the use of external controls. Various types of relevant external control data sources are described in terms of their utility and drawbacks. Statistical methodologies and design implications with external control are discussed. Two recent case studies using external controls to support pediatric oncology drug development are described in detail.</p>","PeriodicalId":94137,"journal":{"name":"Medical research archives","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11257159/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141725420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lorraine C Taylor, Seronda A Robinson, Irene A Doherty, Akeylah C Giles, Brooke E Bauer, William Pilkington
{"title":"Food Insecurity in the Rural South in the Wake of the COVID-19 Pandemic.","authors":"Lorraine C Taylor, Seronda A Robinson, Irene A Doherty, Akeylah C Giles, Brooke E Bauer, William Pilkington","doi":"10.18103/mra.v11i12.4593","DOIUrl":"10.18103/mra.v11i12.4593","url":null,"abstract":"<p><p>Food insecurity in rural communities in the Southern US continues to grow, especially in the wake of the COVID-19 pandemic. Understanding the characteristics of food-insecure individuals and families in this region is critical for developing creative strategies for eliminating this health disparity issue. A food insecurity survey was given to attendees at food-security events held in several counties in one Southern US state. A descriptive analysis of food insecurity in this region is presented, and recommendations for addressing food insecurity among underserved and disadvantaged populations are suggested.</p>","PeriodicalId":94137,"journal":{"name":"Medical research archives","volume":"11 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10956714/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140186782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}