Unraveling the Atomistic Mechanism of Electrostatic Lateral Association of Peptide β-Sheet Structures and Its Role in Nanofiber Growth and Hydrogelation.

Guiding molecular assembly of peptides into rationally engineered nanostructures remains a major hurdle against the development of functional peptide-based nanomaterials. Various non-covalent interactions come into play to drive the formation and stabilization of these assemblies, of which electrostatic interactions are key. Here, the atomistic mechanisms by which electrostatic interactions contribute toward controlling self-assembly and lateral association of ultrashort β-sheet forming peptides are deciphered.

On Medical Tourism Overseas: Ethical Analysis of the Duties of NHS Doctors in Managing the Negative Health Consequences of Accessing Medical Treatments Abroad.

Introduction: An increasing number of UK residents are travelling overseas to access medical treatments, the negative health consequences of which are largely managed by NHS doctors.

Methods: This paper performs an ethical analysis, using the ethical framework of principlism, of the duties of NHS doctors in managing these negative health consequences of medical tourism overseas.

Findings: While the doctor's duty to respect patient autonomy contains a negative duty to not interfere with their choice to access medical treatment overseas, it also contains a positive duty to ensure this choice is informed.

On Lateness: The Ethics of Running Behind Schedule in General Practice.

Introduction: GPs, at least in the United Kingdom, often run behind schedule in their clinics. This lateness is an inherently ethical problem due to the negative consequences it generates.

Methods: The paper outlines these negative consequences, attempts to classify the major reasons for such lateness, explores the ethical status of each of these reasons, and offers suggestions for how the negative consequences might be managed.

On interpreters: the ethics of interpreter use in general practice.

In the absence of language congruency between patient and general practitioner (GP), the use of an interpreter is essential for a safe and effective clinical consultation. A substantial proportion of individuals living in the UK lack sufficient command of the English language to allow direct communication with their GP. Interpreters in UK general practice can be classified into three major categories: Casual, professional in-person and professional telephone interpreters.

A national evaluation of Project Cautioning And Relationship Abuse ('CARA') awareness raising workshops for first time offenders of domestic violence and abuse: protocol for a concurrent mixed-methods evaluation design.

Introduction: Interventions related to the perpetration of Domestic Violence and Abuse (DVA) have gained traction over the past several years, in response to dissatisfaction by victims, an inadequate response from the criminal justice system, increased demand on police time and a lack of rehabilitative responses to the perpetration of domestic abuse. The CARA model is a conditional diversionary caution, offered by police for first time offenders of 'standard' or 'medium risk' domestic abuse, that engages perpetrators in awareness raising workshops and signposts them onto further services. Although quasi-experimental studies have indicated that CARA showed promise at reducing reoffending, the CARA model has yet to be evaluated nationally and there is no qualitative evidence related to understanding or learning about the lived experience of perpetrators and victims as they engage with the intervention.

Suspected poor-quality medicines in Kenya: a retrospective descriptive study of medicine quality-related complaints reports in Kenya's pharmacovigilance database.

Poor-quality, substandard and falsified, medicines pose a significant public health threat, particularly in low-middle-income countries. A retrospective study was performed on Kenya's Pharmacovigilance Electronic Reporting System (2014-2021) to characterize medicine quality-related complaints and identify associations using disproportionality analysis. A total of 2767 individual case safety reports were identified, categorized into medicines with quality defects (52.

Physicochemical properties, biological chemistry and mechanisms of action of caries-arresting diammine-silver(I) fluoride and silver(I)-fluoride solutions for clinical use: a critical review.

This paper serves as a Part II follow-up of our research investigations performed on the molecular structures of silver(I)-fluoride (SF) and diammine-silver(I) fluoride (SDF) complexes in solution-based commercial products for clinical application, their precise chemical compositions, and their nature in aqueous solution, the latter including rapid fluoride-exchange processes at the silver(I) ion centre monitored by F NMR analysis (Part I). Part I of this series also explores the mechanisms of action (MoA) of these complexes, and is therefore largely focused on their chemical reactions with constituents of human saliva, which has access to their sites of application. Such reactions were found to slowly promote the generation of potentially physiologically-active Ag/AgCl nanoparticles from primarily-generated discoloured silver(I) chloride (AgCl) precipitates, a process involving salivary electron-donors such as thiocyanate and L-cysteine.

Further research into alternative carrier solvents for the detection of latent fingermarks.

A number of solvents, (Solstice PF, Opteon SF33 and Amolea AS-300), are compared to the recommended carrier solvent of HFE7100 for the ninhydrin and 1,2-indandione formulations. As the supply of HFE7100 will cease by the end of 2025, suitable alternatives are required in the short-term to ensure the detection of latent fingermarks on porous surfaces is still effective. Although these solvents, with the exception of Amolea AS-300, are classified as per- and polyfluoroalkyl substances (PFAS); they are not classed as hazardous.

Is it ethically permissible for GPs to promote non-directed altruistic kidney donation to healthy adults?

Doctors hold coexisting ethical duties to avoid causing deliberate harm to their patients (non-maleficence), to act in patients' best interests (beneficence), to respect patients' right to self-determination (autonomy) and to ensure that costs and benefits are fairly distributed among patients (justice). In the context of non-directed altruistic kidney donations (NDAKD), doctors' duties of autonomy and justice are in tension with those of non-maleficence and beneficence. This article examines these competing duties across three scenarios in which general practitioners (GPs) could promote NDAKD to healthy adults.

Performance of GPT-4 in Membership of the Royal College of Paediatrics and Child Health-style examination questions.

The large language model (LLM) ChatGPT has been shown to have considerable utility across medicine and healthcare. This paper aims to explore the capabilities of GPT-4 (Generative Pre-trained Transformer 4) in answering Membership of the Royal College of Paediatrics and Child Health (MRCPCH) written paper-style questions. GPT-4 was subjected to four publicly available sample papers designed for those preparing to sit MRCPCH theory components.

Digital health technologies: Compounding the existing ethical challenges of the 'right' not to know.

Introduction: Doctors hold a prima facie duty to respect the autonomy of their patients. This manifests as the patient's 'right' not to know when patients wish to remain unaware of medical information regarding their health, and poses ethical challenges for good medical practice. This paper explores how the emergence of digital health technologies might impact upon the patient's 'right' not to know.

Comparing body composition between the sweet-liking phenotypes: experimental data, systematic review and individual participant data meta-analysis.

Background: Legislation aimed at reducing sugar intake assumes that sweet-liking drives overconsumption. However, evidence that a greater liking for sweet taste is associated with unhealthier body size is mixed and complicated by relatively small samples, an overreliance on body mass index (BMI) and lack of classification using sweet-liking phenotypes.

Methods: We first examined body size data in two larger samples with sweet-liking phenotyping: extreme sweet-likers, moderate sweet-likers and sweet-dislikers.