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Gastrointestinal Histology in Knoack Out Mouse Models and Temporal Induction of CFTR Protein Function in Mice
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Discrepancy between parent report and clinician observation of symptoms in children with autism spectrum disorders
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Meaningful Research in a Non-Thesis Master\u27s Program: Description of nutritionDay in a Combined MS/DI Program
Get PDFThe nutritionDay research initiative, sponsored by the European Society for Clinical Nutrition and Metabolism (ESPEN) since 2006, is a global effort to describe nutrition risk and nutrition interventions in hospitals and nursing homes, with the goal that increased awareness of malnutrition will lead to improved patient care.1,2 The nutritionDay coordinating center provides standardized forms that investigators at participating hospitals use to collect data from both the health record and directly from the patient.1 NutritionDay has been a successful initiative, collecting and pooling data from almost 300,000 patients across 72 countries and leading to at least 40 publications.2,3 Participation in nutritionDay also benefits the contributing facilities by providing them local data that can be compared year-over-year and to similar facilities, and by raising awareness of malnutrition.1,2 The nutritionDay forms are designed to make data collection simple and ensure that individuals charged with collecting data at participating sites do not require special nutrition expertise to complete them.1 In the United States, conducting research is part of the expectation of required experiential supervised practice training (ie, completed in a dietetics internship to become a registered dietitian4 as mandated by the Accreditation Council on Education in Nutrition and Dietetics [ACEND]). Independent of ACEND requirements, research is incorporated into many graduate-level nutrition training programs. However, particularly in non-thesis Master’s degree programs, there may be little time in the curriculum or limited faculty bandwidth to support mentoring individual student research projects. Many dietetics internship directors express confusion or lack of confidence in implementing the ACEND research competency.5 Thus, new approaches are needed that provide high-quality research experiences that are manageable within the program context. This paper describes how students can be involved in the collection of nutritionDay data, contributing to the global dataset, to knowledge at a local facility, and to the students’ own education
Role of WAVE3 as an Actin Binding Protein in the Pathology of Triple Negative Breast Cancer
Get PDFBreast cancer, a prevalent global health concern, has sparked extensive research efforts, particularly focusing on triple negative breast cancer (TNBC), a subtype lacking estrogen receptor (ER), progesterone receptor, and epidermal growth factor receptor. TNBC\u27s aggressive nature and resistance to hormone-based therapies heightens the risk of tumor progression and recurrence. Actin-binding proteins, specifically WAVE3 from the Wiskott–Aldrich syndrome protein (WASP) family, have emerged as major drivers in understanding TNBC biology. This review delves into the intricate molecular makeup of TNBC, shedding light on actin\u27s fundamental role in cellular processes. Actin, a structural element in the cytoskeleton, regulates various cellular pathways essential for homeostasis. Its dynamic nature enables functions such as cell migration, motility, intracellular transport, cell division, and signal transduction. Actin-binding proteins, including WAVE3, play pivotal roles in these processes. WAVE3, a member of the WASP family, remains the focus of this review due to its potential involvement in TNBC progression. While actin-binding proteins are studied for their roles in healthy cellular cycles, their significance in TNBC remains underexplored. This review aims to discuss WAVE3\u27s impact on TNBC, exploring its molecular makeup, functions, and significance in tumor progression. The intricate structure of WAVE3, featuring elements like the verprolin–cofilin–acidic domain and regulatory elements, plays a crucial role in regulating actin dynamics. Dysregulation of WAVE3 in TNBC has been linked to enhanced cell migration, invasion, extracellular matrix remodeling, epithelial-mesenchymal transition, tumor proliferation, and therapeutic resistance. Understanding the role of actin-binding proteins in cancer biology has potential clinical implications, making them potential prognostic biomarkers and promising therapeutic targets. The review emphasizes the need for further research into actin-binding proteins\u27 clinical applications, diagnostic value, and therapeutic interventions. In conclusion, this comprehensive review explores the complex interplay between actin and actin-binding proteins, with special emphasis on WAVE3, in the context of TNBC. By unraveling the molecular intricacies, structural characteristics, and functional significance, the review paves the way for future research directions, clinical applications, and potential therapeutic strategies in the challenging landscape of TNBC
Spontaneous Repolarization Alternans Causes VT/VF Rearrest That Is Suppressed by Preserving Gap Junctions
Get PDFBackground: Ventricular tachycardia (VT)/ventricular fibrillation (VF) rearrest after successful resuscitation is common, and survival is poor. A mechanism of VT/VF, as demonstrated in ex vivo studies, is when repolarization alternans becomes spatially discordant (DIS ALT), which can be enhanced by impaired gap junctions (GJs). However, in vivo spontaneous DIS ALT–induced VT/VF has never been demonstrated, and the effects of GJ on DIS ALT and VT/VF rearrest are unknown. Objectives: This study aimed to determine whether spontaneous VT/VF rearrest induced by DIS ALT occurs in vivo, and if it can be suppressed by preserving Cx43-mediated GJ coupling and/or connectivity. Methods: We used an in vivo porcine model of resuscitation from ischemia-induced cardiac arrest combined with ex vivo optical mapping in porcine left ventricular wedge preparations. Results: In vivo, DIS ALT frequently preceded VT/VF and paralleled its incidence at normal (37°C, n = 9) and mild hypothermia (33°C, n = 8) temperatures. Maintaining GJs in vivo with rotigaptide (n = 10) reduced DIS ALT and VT/VF incidence, especially during mild hypothermia, by 90% and 60%, respectively (P \u3c 0.001; P \u3c 0.013). Ex vivo, both rotigaptide (n = 5) and αCT11 (n = 7), a Cx43 mimetic peptide that promotes GJ connectivity, significantly reduced DIS ALT by 60% and 100%, respectively (P \u3c 0.05; P \u3c 0.005), and this reduction was associated with reduced intrinsic heterogeneities of action potential duration rather than changes in conduction velocity restitution. Conclusions: These results provide the strongest in vivo evidence to date suggesting a causal relationship between spontaneous DIS ALT and VT/VF in a clinically realistic scenario. Furthermore, our results suggest that preserving GJs during resuscitation can suppress VT/VF rearrest
The Efficacy of Telemental Health Interventions for Mood Disorders Pre-COVID-19: A Narrative Review
Get PDFThe onset of the COVID-19 pandemic saw a significant surge in the utilization of telemental health (TMH) services. This narrative review aimed to investigate the efficacy of TMH for serious mood disorders prior to the COVID-19 pandemic. A search across databases was conducted for randomized controlled trials focusing on TMH interventions for mood disorders, encompassing major depressive disorder (MDD) and bipolar disorder (BD). Study and patient characteristics, interventions, and outcomes were extracted. From a pool of 2611 papers initially identified, 17 met the inclusion criteria: 14 focused on MDD, while 4 addressed BD. Among these, 6 papers directly compared TMH interventions to in-person of same treatment, revealing improved access to care and higher rates of appointment follow-up with TMH. Additionally, 6 papers comparing TMH to treatment as usual demonstrated improvements in mood outcomes. Conversely, 3 papers comparing different TMH interventions found no discernible differences in outcomes. Notably, 3 studies evaluated TMH as an adjunct to usual care, all reporting enhancements in depression outcomes. Overall, preliminary evidence suggests that prior to COVID-19, TMH interventions for serious mood disorders facilitated improved access to care and follow-up, with comparable clinical outcomes to traditional in-person interventions. The discussion addresses limitations and provides recommendations for future research in this domain
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