Impact of psychological wellbeing and academic readiness on early medical student attrition: educators' perspective.

Objectives: Medical school attrition is a complex problem, and improvement can only be achieved through the integrated involvement of all stakeholders. Mental health disorders are perceived to be prevalent among medical students in UAE. This study aimed to explore educators' perspectives on the high rate of early medical school attrition in UAE.

Designed Cell-Penetrating Peptide Constructs for Inhibition of Pathogenic Protein Self-Assembly.

Peptides possess a number of pharmacologically desirable properties, including greater chemical diversity than other biomolecule classes and the ability to selectively bind to specific targets with high potency, as well as biocompatibility, biodegradability, and ease and low cost of production. Consequently, there has been considerable interest in developing peptide-based therapeutics, including amyloid inhibitors. However, a major hindrance to the successful therapeutic application of peptides is their poor delivery to target tissues, cells or subcellular organelles.

Going beyond competencies: Building blocks for a patient- and population-centered medical curriculum.

Introduction: Changing health care requires changing medical education. In this position paper it is suggested that subsequent innovations in medical education each had their specific strengths and shortcomings. What they have, however, in common is that they place the medical student and their competencies at their center.

Tutor assessment of medical students in problem-based learning sessions.

Background: Problem-based learning (PBL) is a method of learning that has been adopted in different curricula of different disciplines for more than 30 years; the assessment of the students in PBL sessions in medical schools is fundamental to ensure students' attainment of the expected outcomes of conducting PBL sessions and in providing the students with the feedback that help them to develop and encourage their learning. This study investigated the inter-rater reliability of the tutor assessment in assessing medical students' performance in their PBL tutorial sessions.

Materials And Methods: This study was conducted in the College of Medicine (COM), in the academic year 2021-2022.

Tumor suppressor Par-4 activates autophagy-dependent ferroptosis.

Ferroptosis is a unique iron-dependent form of non-apoptotic cell death characterized by devastating lipid peroxidation. Whilst growing evidence suggests that ferroptosis is a type of autophagy-dependent cell death, the underlying molecular mechanisms regulating ferroptosis are largely unknown. In this study, through an unbiased RNA-sequencing screening, we demonstrate the activation of a multi-faceted tumor-suppressor protein Par-4/PAWR during ferroptosis.

The influence of context on diagnostic reasoning: A narrative synthesis of experimental findings.

Aims And Objectives: Contextual information which is implicitly available to physicians during clinical encounters has been shown to influence diagnostic reasoning. To better understand the psychological mechanisms underlying the influence of context on diagnostic accuracy, we conducted a review of experimental research on this topic.

Method: We searched Web of Science, PubMed, and Scopus for relevant articles and looked for additional records by reading the references and approaching experts.

Relationship between admission selection tools and student attrition in the early years of medical school.

Objectives: Placement in medical schools is highly sought after worldwide with fierce competition among applicants. However, some of the best students withdraw after being accepted to medical school. The aim of this study was to investigate early student attrition within the first 2 years of medical school and determine its relationship to admission selection tools.

Overconfidence, Time-on-Task, and Medical Errors: Is There a Relationship?

Background: Literature suggest that physicians' high level of confidence has a negative impact on medical decisions, and this may lead to medical errors. Experimental research is lacking; however, this study investigated the effects of high confidence on diagnostic accuracy.

Methods: Forty internal medicine residents from different hospitals in Saudi Arabia were divided randomly into two groups: A high-confidence group as an experimental and a low-confidence group acting as a control.

Practical Guide to Undergraduate Medical Curriculum Alignment and Mapping.

Objective: Curriculum development and reviews are of paramount importance for academic programs curriculum management. Medical curricula need proper construction and frequent updates to suits learning outcomes considering their integrative nature and rapid scientific advancement. Curriculum alignment and mapping are fundamental for proper integration and planning of medical curriculum.

pH-Responsive Upconversion Mesoporous Silica Nanospheres for Combined Multimodal Diagnostic Imaging and Targeted Photodynamic and Photothermal Cancer Therapy.

Photodynamic therapy (PDT) and photothermal therapy (PTT) have gained considerable attention as potential alternatives to conventional cancer treatments. However, these approaches remain limited by low solubility, poor stability, and inefficient targeting of many common photosensitizers (PSs) and photothermal agents (PTAs). To overcome the aforementioned limitations, we engineered biocompatible and biodegradable tumor-targeted upconversion nanospheres with imaging capabilities.

Integrating the social determinants of health into curriculum: AMEE Guide No. 162.

The World Health Organization (WHO) defines the Social Determinants of Health (SDOH) as the non-medical factors influencing health outcomes. SDOH is associated with conditions in which people are born, grow, work, and live. Medical schools and licensing bodies are increasingly recognizing the need for doctors and healthcare professionals to be aware of their patient's social context and how it impacts their states of health and disease.

pH-responsive upconversion mesoporous silica nanospheres for combined multimodal diagnostic imaging and targeted photodynamic and photothermal cancer therapy.

Photodynamic therapy (PDT) and photothermal therapy (PTT) have garnered considerable interest as non-invasive cancer treatment modalities. However, these approaches remain limited by low solubility, poor stability and inefficient targeting of many common photosensitizers (PSs) and photothermal agents (PTAs). To overcome these limitations, we have designed biocompatible and biodegradable tumor-targeted upconversion nanospheres with imaging capabilities.

Erratum: The amyloid-inhibiting NCAM-PrP peptide targets Aβ peptide aggregation in membrane-mimetic environments.

[This corrects the article DOI: 10.1016/j.isci.

Assessing relational coordination and its impact on perceived mental health of students, teachers and staff in a clinical skills program during the COVID-19 pandemic.

Background: The global spread of the COVID-19 virus caused unprecedented interruptions in medical education. This paper evaluates Relational Coordination (RC): communicating and relating for task integration; between the distinct stakeholders responsible for scheduling,delivering and receiving clinical teaching in the wake of the pandemic.

Methodology: Using a cross-sectional design, the level of Relational Coordination was assessed between twelve groups within a Clinical Skills Program at a Medical School in the United Arab Emirates.

Cucurbit[7]uril Inhibits Islet Amyloid Polypeptide Aggregation by Targeting N Terminus Hot Segments and Attenuates Cytotoxicity.

Invited for the cover of this issue is the group of Prof. Hamilton at New York University. The image depicts how cucurbit[7]uril inhibits islet amyloid polypeptide self-assembly that rescues rat insulinoma cells (a pancreatic β-cell model) from assembly-associated cytotoxicity.

Cucurbit[7]uril Inhibits Islet Amyloid Polypeptide Aggregation by Targeting N Terminus Hot Segments and Attenuates Cytotoxicity.

Two "hot segments" within an islet amyloid polypeptide are responsible for its self-assembly, which in turn is linked to the decline of β-cells in type 2 diabetes (T2D). A readily available water-soluble, macrocyclic host, cucurbit[7]uril (CB[7]), effectively inhibits islet amyloid polypeptide (IAPP) aggregation through ion-dipole and hydrophobic interactions with different residues of the monomeric peptide in its random-coil conformation. A HSQC NMR study shows that CB[7] likely modulates IAPP self-assembly by interacting with and masking major residues present in the "hot segments" at the N terminus.

RIN4 homologs from important crop species differentially regulate the Arabidopsis NB-LRR immune receptor, RPS2.

RIN4 homologs from important crop species differ in their ability to prevent ectopic activity of the nucleotide binding-leucine rich repeat resistance protein, RPS2. Pathogens deploy virulence effectors to perturb host processes. Plants utilize intracellular resistance (R) proteins to recognize pathogen effectors either by direct interaction or indirectly via effector-mediated perturbations of host components.

Sub-stoichiometric inhibition of IAPP aggregation: a peptidomimetic approach to anti-amyloid agents.

Membrane-catalysed misfolding of islet amyloid polypeptide is associated with the death of β-cells in type II diabetes (T2D). Most active compounds so far reported require high doses for inhibition of membrane bound IAPP fibrillation. Here, we describe a naphthalimide-appended oligopyridylamide-based α-helical mimetic, , for targeting membrane bound IAPP.

The amyloid-inhibiting NCAM-PrP peptide targets Aβ peptide aggregation in membrane-mimetic environments.

Substantial research efforts have gone into elucidating the role of protein misfolding and self-assembly in the onset and progression of Alzheimer's disease (AD). Aggregation of the Amyloid-β (Aβ) peptide into insoluble fibrils is closely associated with AD. Here, we use biophysical techniques to study a peptide-based approach to target Aβ amyloid aggregation.

Protein mimetic amyloid inhibitor potently abrogates cancer-associated mutant p53 aggregation and restores tumor suppressor function.

Missense mutations in p53 are severely deleterious and occur in over 50% of all human cancers. The majority of these mutations are located in the inherently unstable DNA-binding domain (DBD), many of which destabilize the domain further and expose its aggregation-prone hydrophobic core, prompting self-assembly of mutant p53 into inactive cytosolic amyloid-like aggregates. Screening an oligopyridylamide library, previously shown to inhibit amyloid formation associated with Alzheimer's disease and type II diabetes, identified a tripyridylamide, ADH-6, that abrogates self-assembly of the aggregation-nucleating subdomain of mutant p53 DBD.