We have developed a peer-teaching program for student assistants involved in medical education. The offer comprises (1) an inventory of potentially relevant courses offered by other institutions at our university and (2) our own peer-teaching curriculum on pedagogy and teaching methodology. We describe a pilot scheme to implement the curriculum.
View Article and Find Full Text PDFAllogeneic mesenchymal stromal cells (MSCs) are a safe treatment option for many disorders of the immune system. However, clinical trials using MSCs have shown inconsistent therapeutic efficacy, mostly owing to MSCs providing insufficient immunosuppression in target tissues. Here we show that antigen-specific immunosuppression can be enhanced by genetically modifying MSCs with chimaeric antigen receptors (CARs), as we show for E-cadherin-targeted CAR-MSCs for the treatment of graft-versus-host disease in mice.
View Article and Find Full Text PDFObjective: The present study investigated the efficacy of the didactic approaches of video modeling (VM, best-practice examples), video reflection (VR, problem-based approach), and the combination of both (VMR) in fostering medical communication competence in a video-based digital learning environment.
Methods: N = 126 third-year medical students who participated in the pre-post study were assigned to either the intervention groups (VM, VR, and VMR) or the wait-list control group. The efficacy of the three approaches was assessed by means of a situational judgment test (SJT) of medical communication competence.
Olduvai Gorge in northern Tanzania is part of a globally important archeological and paleoanthropological World Heritage Site location critical to our understanding of modern human evolution. The Ndutu Beds in the upper part of the geological sequence at Olduvai Gorge represent the oldest unit to yield modern Homo sapiens skeletal material and Middle Stone Age technology. However, the timing of the deposition of the Ndutu Beds is poorly constrained at present, which limits our understanding of the paleoenvironments critical for contextualizing H.
View Article and Find Full Text PDFBackground: Sexual grooming in cases of child sexual abuse (CSA) has captured the attention of researchers over the past decades. While early research focused on offenders who groomed children in person, our knowledge of online groomers has begun to increase. However, there has not been a concomitant increase in understanding of groomers who use both in-person and online grooming strategies (i.
View Article and Find Full Text PDFBackground: Informal workplace learning (WPL) has no concrete learning objective and takes place without a responsible supervisor, which makes it difficult to assess its learning outcomes. Formal learning situations, as they are known from universities or schools, do not exist in this context and make a conventional assessment of learning goals and achievements impossible. Informal learning in the workplace is of central importance, and the assessment of informal learning outcomes in medical education is an under-researched area.
View Article and Find Full Text PDFThe receptor tyrosine kinase AXL is a member of the TYRO3, AXL, and proto-oncogene tyrosine-protein kinase MER family and plays pleiotropic roles in cancer progression. AXL is expressed in immunosuppressive cells, which contributes to decreased efficacy of immunotherapy. Therefore, we hypothesized that AXL inhibition could serve as a strategy to overcome resistance to chimeric antigen receptor T (CAR T)-cell therapy.
View Article and Find Full Text PDFEarly anticipation of COVID-19 infection chains within hospitals is of high importance for initiating suitable measures at the right time. Infection control specialists can be supported by application systems able of consolidating and analyzing heterogeneous, up-to-now non-standardized and distributed data needed for tracking COVID-19 infections and infected patients' hospital contacts. We developed a system, Co-Surv-SmICS, assisting in infection chain detection, in an open and standards-based way to ensure reusability of the system across institutions.
View Article and Find Full Text PDFInhibitory myeloid cells and their cytokines play critical roles in limiting chimeric antigen receptor T (CART) cell therapy by contributing to the development of toxicities and resistance following infusion. We have previously shown that neutralization of granulocyte-macrophage colony-stimulating factor (GM-CSF) prevents these toxicities and enhances CART cell functions by inhibiting myeloid cell activation. In this report, we study the direct impact of GM-CSF disruption during the production of CD19-directed CART cells on their effector functions, independent of GM-CSF modulation of myeloid cells.
View Article and Find Full Text PDFPivotal clinical trials of B-cell maturation antigen-targeted chimeric antigen receptor T (CART)-cell therapy in patients with relapsed/refractory multiple myeloma (MM) resulted in remarkable initial responses, which led to a recent US Food and Drug Administration approval. Despite the success of this therapy, durable remissions continue to be low, and the predominant mechanism of resistance is loss of CART cells and inhibition by the tumor microenvironment (TME). MM is characterized by an immunosuppressive TME with an abundance of cancer-associated fibroblasts (CAFs).
View Article and Find Full Text PDFObjective: We developed and evaluated the Video-Based Assessment of Medical Communication Competence (VA-MeCo), a construct-driven situational judgement test measuring medical students' communication competence in patient encounters.
Methods: In the construction phase, we conducted two expert studies (n = 6, n = 13) to ensure curricular and content validity and sufficient expert agreement on the answer key. In the evaluation phase, we conducted a cognitive pre-test (n = 12) and a pilot study (n = 117) with medical students to evaluate test usability and acceptance, item statistics and test reliability depending on the applied scoring method (raw consensus vs.
Objectives: To develop and validate a short instrument to assess undergraduate medical students' communication and interpersonal skills in videographed history taking situations with simulated patients.
Methods: Sixty-seven undergraduate medical students participating in an assessment including videographed physician-patient encounters for history taking with five simulated patients were included in this study. The last video of each participant's consultation hour was rated by two independent assessors with the eight-item ComCare index for assessment of communication and interpersonal skills newly designed for the external rater perspective (ComCareR).
Although chimeric antigen receptor T (CART)-cell therapy has been successful in treating certain hematologic malignancies, wider adoption of CART-cell therapy is limited because of minimal activity in solid tumors and development of life-threatening toxicities, including cytokine release syndrome (CRS). There is a lack of a robust, clinically relevant imaging platform to monitor expansion and trafficking to tumor sites. To address this, we utilized the sodium iodide symporter (NIS) as a platform to image and track CART cells.
View Article and Find Full Text PDFChimeric antigen receptor (CAR) T cell therapy has yielded unprecedented outcomes in some patients with hematological malignancies; however, inhibition by the tumor microenvironment has prevented the broader success of CART cell therapy. We used chronic lymphocytic leukemia (CLL) as a model to investigate the interactions between the tumor microenvironment and CART cells. CLL is characterized by an immunosuppressive microenvironment, an abundance of systemic extracellular vesicles (EVs), and a relatively lower durable response rate to CART cell therapy.
View Article and Find Full Text PDFPreviously, Olduvai Bed I excavations revealed Oldowan assemblages <1.85 Ma, mainly in the eastern gorge. New western gorge excavations locate a much older ∼2.
View Article and Find Full Text PDFThe teaching of communicative competence plays an increasingly important role in medical education. In addition to traditional teaching formats, such as role-plays with simulated patients, technology-based approaches become more important in medical education. Teaching materials are increasingly augmented by videos of simulated doctor-patient conversations.
View Article and Find Full Text PDFCompetence-based assessment formats in medical education usually focus on individual facets of competence (FOCs). The concept of 'Entrustable Professional Activities' (EPAs) encompasses supervisors' decisions on which level of supervision a trainee requires to perform a professional activity including several FOCs. How the different FOCs as perceived by clinician raters contribute to entrustment decisions is yet unclear.
View Article and Find Full Text PDFBackground: Assessing competence of advanced undergraduate medical students based on performance in the clinical context is the ultimate, yet challenging goal for medical educators to provide constructive alignment between undergraduate medical training and professional work of physicians. Therefore, we designed and validated a performance-based 360-degree assessment for competences of advanced undergraduate medical students.
Methods: This study was conducted in three steps: 1) Ten facets of competence considered to be most important for beginning residents were determined by a ranking study with 102 internists and 100 surgeons.
The final year of undergraduate medical education (practical year) should foster the transition from undergraduate medical education to graduate medical education. Medical students in the practical year should be able to assume professional tasks, and supervisors should assign these tasks to them. In this pilot study, a curriculum based on the concept of entrustable professional activities (EPAs) was implemented and evaluated in the disciplines of internal medicine, surgery and general practice at four university hospitals.
View Article and Find Full Text PDFThe recently described oak gall wasp Zapatella davisae Buffington & Melika (Hymenoptera: Cynipidae) has caused extensive damage and mortality to black oak trees, Quercus velutina L. (Fagales: Fagaceae), in coastal parts of New England, United States. Like many newly described and/or newly introduced species, it is unclear how long populations of Z.
View Article and Find Full Text PDFChimeric antigen receptor T (CAR-T) cell therapy is a new pillar in cancer therapeutics; however, its application is limited by the associated toxicities. These include cytokine release syndrome (CRS) and neurotoxicity. Although the IL-6R antagonist tocilizumab is approved for treatment of CRS, there is no approved treatment of neurotoxicity associated with CD19-targeted CAR-T (CART19) cell therapy.
View Article and Find Full Text PDFBackground: Frameworks like the CanMEDS model depicting professional roles and specific professional activities provide guidelines for postgraduate education. When medical graduates start their residency, they should possess certain competencies related to communication, management and professionalism while other competencies will be refined during postgraduate training. Our study aimed to evaluate the relevance of different competencies for a first year resident required for entrustment decision from the perspective of physicians from medical faculties with different undergraduate medical curricula.
View Article and Find Full Text PDFIntroduction: The aim of this study was to assess variation in prostate contouring 12 months following a structured interactive educational intervention (EI) and to test the hypothesis that EIs positively impact on prostate contouring accuracy and consistency long term.
Methods: A common set of computed tomography (CT) and magnetic resonance imaging (MRI) data sets were used to assess prostate contouring consistency before, immediately after and 12 months following an EI. No further EIs were provided after the initial EI.
Background: Thermotherapy has been established between conservative and surgical options as a minimally invasive method for the treatment of axillary hyperhidrosis.
Objective: The objective of this study was to present radiofrequency thermotherapy (RFTT) as a safe and effective new treatment method.
Materials And Methods: Thirty adult patients with pronounced axillary hyperhidrosis were treated with RFTT with noninsulated microneedles 3 times at intervals of 6 weeks.