Publications by authors named "James Stuart"

Background And Objectives: Esmethadone (dextromethadone; d-methadone; S-methadone (+)-methadone; REL-1017) is a low potency N-methyl--aspartate (NMDA) receptor channel blocker that showed a rapid and sustained adjunctive antidepressant effects in patients with major depressive disorder with inadequate response to ongoing serotonergic antidepressant treatment. Previous studies indicated that esmethadone is partially excreted by the kidney (53.9% of the dose) and by the liver (39.

View Article and Find Full Text PDF

Porous liquids (PLs) are a new type of fluid sorbent investigated mainly for the separation of gas mixtures. Here, we explore their application to the separation of miscible liquids, using MEG/water (MEG=monoethylene glycol) and EtOH/water as proof-of-principle. Recovery of used MEG is industrially important but its extraction into conventional solvents from water is difficult.

View Article and Find Full Text PDF
Article Synopsis
  • - Type III porous liquids (PLs), made from solid particles in a liquid phase, show potential for gas separation, but how particle size affects their properties is not well understood.
  • - In an experiment with Al(OH)(fumarate) particles of various sizes in polydimethylsiloxane (PDMS), results indicated that larger particles improve gas uptake rates while also decreasing viscosity and physical stability.
  • - The gas uptake mechanism for these PLs is complex, fitting the Elovich model better than simple kinetics, with a three-step diffusion process revealed, suggesting that larger particles enhance both gas absorption and rapid kinetics more effectively than PDMS alone.
View Article and Find Full Text PDF

Objective: Current guidelines do not recommend the use of antibiotics to treat clinically uninfected ulcers. However, physicians continue to prescribe antibiotics for clinically uninfected ulcers with the rationale 'better to be safe than sorry'. Yet, antibiotic resistance is increasing, side-effects are common and treatment costs are rising.

View Article and Find Full Text PDF

Background And Objective: Esmethadone (dextromethadone; d-methadone; S-methadone (+)-methadone; REL-1017) is the opioid inactive dextro-isomer of racemic methadone. Esmethadone is a low potency N-methyl-D-aspartate (NMDA) receptor channel blocker with higher affinity for GluN2D subtypes. Esmethadone showed robust, rapid, and sustained antidepressant effects in patients with major depressive disorder (MDD) with inadequate response to ongoing serotonergic antidepressant treatment.

View Article and Find Full Text PDF

Compressibility is a fundamental property of all materials. For fluids, that is, gases and liquids, compressibility forms the basis of technologies such as pneumatics and hydraulics and determines basic phenomena such as the propagation of sound and shock waves. In contrast to gases, liquids are almost incompressible.

View Article and Find Full Text PDF

Fluoroquinolone antibiotics are associated with increased risk of tendinopathy and tendon rupture, which can occur well after cessation of treatment. We have previously reported that the fluoroquinolone ciprofloxacin (CPX) reduced proteoglycan synthesis in equine tendon explants. This study aimed to determine the effects of CPX on proteoglycan catabolism and whether any observed effects are reversible.

View Article and Find Full Text PDF

This review aims to provide an update on the role of augmented reality (AR) in surgical training and investigate whether the use of AR improves performance measures compared to traditional approaches in surgical trainees. PUBMED, EMBASE, Google Scholar, Cochrane Library, British Library and Science Direct were searched following PRIMSA guidelines. All English language original studies pertaining to AR in surgical training were eligible for inclusion.

View Article and Find Full Text PDF

This review summarizes the recent Global Meningococcal Initiative (GMI) regional meeting, which explored meningococcal disease in North America. Invasive meningococcal disease (IMD) cases are documented through both passive and active surveillance networks. IMD appears to be decreasing in many areas, such as the Dominican Republic (2016: 18 cases; 2021: 2 cases) and Panama (2008: 1 case/100,000; 2021: <0.

View Article and Find Full Text PDF

Background: Radiotherapy before mastectomy and autologous free-flap breast reconstruction can avoid adverse radiation effects on healthy donor tissues and delays to adjuvant radiotherapy. However, evidence for this treatment sequence is sparse. We aimed to explore the feasibility of preoperative radiotherapy followed by skin-sparing mastectomy and deep inferior epigastric perforator (DIEP) flap reconstruction in patients with breast cancer requiring mastectomy.

View Article and Find Full Text PDF

Porous Liquids (PLs) are a new class of material that possess both fluidity and permanent porosity. As such they can act as enhanced, selective solvents and may ultimately find applications which are not possible for porous solids, such as continuous flow separation processes. Type II PLs consist of empty molecular hosts dissolved in size-excluded solvents and to date have mainly been based on hosts that have limited chemical and thermal stability.

View Article and Find Full Text PDF

Fluoroquinolones are an effective, broad-spectrum antibiotic used to treat an array of bacterial infections. However, they are associated with an increased risk of tendinopathy and tendon rupture even after discontinuation of treatment. This condition is known as fluoroquinolone-associated tendinopathy, the underlying mechanisms of which are poorly understood.

View Article and Find Full Text PDF

The SARS-CoV-2 (COVID-19) pandemic called for the restructuring of National Health Service (NHS) surgical departments across the country. Initial guidance advised that patients undergoing elective surgery isolate for 14 days prior to their operation. As we learnt more about COVID-19 and its incubation period, at the Princess Royal University Hospital this guidance has been decreased to 72 h.

View Article and Find Full Text PDF

Metal Organic Frameworks (MOFs) offer unparalleled physical and sorption properties due to their chemical tunability and unmatched porosity. MOFs are consequently envisaged to play a key role in commercial gas storage and separation applications. However, it is essential to tackle their current market entry barriers, if mainstream adoption is to be realised.

View Article and Find Full Text PDF

Background: The transverse upper gracilis (TUG) flap provides a good alternative to the gold standard DIEP in breast reconstruction. However, flap volume estimates are subjective, making preoperative planning potentially challenging.

Study Aim: To derive a reliable, accurate, and reproducible mathematical algorithm for the preoperative calculation of TUG flap volumes.

View Article and Find Full Text PDF

Bacterial meningitis has serious health, economic, and social consequences with a high risk of death and lifelong disability [...

View Article and Find Full Text PDF

Porous materials contain regions of empty space into which guest molecules can be selectively adsorbed and sometimes chemically transformed. This has made them useful in both industrial and domestic applications, ranging from gas separation, energy storage and ion exchange to heterogeneous catalysis and green chemistry. Porous materials are often ordered (crystalline) solids.

View Article and Find Full Text PDF

The World Health Organization (WHO) has developed a global roadmap to defeat meningitis by 2030. To advocate for and track progress of the roadmap, the burden of meningitis as a syndrome and by pathogen must be accurately defined. Three major global health models estimating meningitis mortality as a syndrome and/or by causative pathogen were identified and compared for the baseline year 2015.

View Article and Find Full Text PDF