In situ light-driven pH modulation for NMR studies.

Unlabelled: Proton exchange is a fundamental chemical event, and NMR provides the most direct readout of protonation events with site-specific resolution. Conventional approaches require manual titration of sample pH to collect a series of NMR spectra at different pH values. This requires extensive sample handling and often results in significant sample loss, leading to reduced signal or the need to prepare additional samples.

Backbone and Sidechain H, N and C Resonance Assignments of a Multidrug Efflux Membrane Protein using Solution and Solid-State NMR.

EmrE is a bacterial membrane-embedded multidrug transporter that functions as an asymmetric homodimer. EmrE is implicated in antibiotic resistance, but is now known to confer either resistance or susceptibility depending on the identity of the small molecule substrate. Here, we report both solution- and solid-state NMR assignments of S64V-EmrE at pH 5.

In Vitro Screening of an In-House Library of Structurally Distinct Chemotypes Towards the Identification of Novel SARS-CoV-2 Inhibitors.

Four years after the COVID-19 pandemic, a very limited number of drugs has been marketed; thus, the search for new medications still represents a compelling need. In our previous work on antiviral, antiparasitic, and antiproliferative agents, we described several compounds (- and -) structurally related to clofazimine, chloroquine, and benzimidazole derivatives. Thus, we deemed it worthwhile to test them against the replication of SARS-CoV-2, together with a few other compounds (, and -), which showed some analogy to miscellaneous anti-coronavirus agents.

Patient, Caregiver, and Provider Perspectives on Improving Provider-Patient Interactions in Hemodialysis: A Qualitative Study.

Background: Improving interactions between people receiving hemodialysis and health care providers of facility-based hemodialysis care is a top priority for patients, caregivers, and health care providers.

Objective: To identify challenges for high-quality clinical interactions in facility-based hemodialysis care as well as potential solutions.

Design: Multicentre qualitative study using focus groups and semi-structured interviews to elicit the perspectives of patients, caregivers, and health care providers.

The CECR2 bromodomain displays distinct binding modes to select for acetylated histone proteins versus non-histone ligands.

The cat eye syndrome chromosome region candidate 2 (CECR2) protein is an epigenetic regulator involved in chromatin remodeling and transcriptional control. The CECR2 bromodomain (CECR2-BRD) plays a pivotal role in directing the activity of CECR2 through its capacity to recognize and bind acetylated lysine residues on histone proteins. This study elucidates the binding specificity and structural mechanisms of CECR2-BRD interactions with both histone and non-histone ligands, employing techniques such as isothermal titration calorimetry (ITC), nuclear magnetic resonance (NMR) spectroscopy, and a high-throughput peptide assay.

Disparities in kidney care in vulnerable populations: A multinational study from the ISN-GKHA.

Vulnerable populations, such as the elderly, children, displaced people, and refugees, often encounter challenges in accessing healthcare. In this study, we used data from the third iteration of the International Society of Nephrology Global Kidney Health Atlas (ISN-GKHA) to describe kidney care access and delivery to vulnerable populations across countries and regions. Using data from an international survey of clinicians, policymakers, and patient advocates, we assessed the funding and coverage of vulnerable populations on all aspects of kidney replacement therapies (KRT).

2-W continuous-wave and passively Q-switched Tm,Ho:YLF channeled waveguide laser at 2.05 µm.

We report on the operation of an efficient Tm,Ho:YLF depressed cladding, channeled waveguide laser in both continuous-wave (CW) and passively Q-switched (PQS) regimes, producing laser emission at the wavelength of 2.05 µm. The 70-µm diameter depressed cladding waveguide, fabricated using femtosecond laser inscription, had a low propagation loss value of 0.

Effect of End-Tethered Methoxy-PEO Chain Density on Uremic Toxin Adsorption.

In 2023, around 850 million people globally were affected by chronic kidney disease, which leads to the retention of uremic toxins and excess fluid in the blood. This study examines the adsorption of these toxins to poly(ethylene oxide) (PEO) films, known for their low-fouling properties. The gold surfaces were treated with 5 mM end-thiolated methoxy-terminated PEO (-PEO) and analyzed using dynamic contact angle measurements, X-ray photoelectron spectroscopy, and spectroscopic ellipsometry to confirm the PEO film's presence and determine chain density.

Regional hotspots for chronic kidney disease: A multinational study from the ISN-GKHA.

Chronic kidney disease (CKD) disproportionately affects certain populations as demonstrated by well-established subnational geographic hotspots of CKD in Central America and South Asia. Using data from the third iteration of the International Society of Nephrology Global Kidney Health Atlas (ISN-GKHA), we aimed to systematically identify sub-national geographic or population clusters with high prevalence of CKD. The ISN-GKHA survey was conducted from July to September 2022, and included questions regarding whether a regional CKD hotspot existed in the respondents' country and possible contributors.

Landscape of kidney replacement therapy provision in low- and lower-middle income countries: A multinational study from the ISN-GKHA.

In low- and lower-middle-income countries (LLMICs), delivering equitable kidney care presents substantial challenges, resulting in significant disparities in disease management and treatment outcomes for people with kidney failure. This comprehensive report leveraged data from the International Society of Nephrology-Global Kidney Health Atlas (ISN-GKHA), to provide a detailed update on the landscape of kidney replacement therapy (KRT) in LLMICs. Among the 65 participating LLMICs, reimbursement for KRT (publicly funded by the government and free at the point of delivery) was available in 28%, 15%, and 8% for hemodialysis (HD), peritoneal dialysis (PD), and kidney transplantation (KT), respectively.

The centre for health informatics: a novel approach to accelerating the field of health data science.

Precision Medicine and Precision Public Health are approaches to improve population health. Achieving these goals requires innovation in health informatics. The Centre for Health Informatics (CHI) within the Cumming School of Medicine (CSM) at the University of Calgary (UC), Canada, was created to respond to this need by fostering multidisciplinary collaborations, building capacity by recruiting and training outstanding faculty and students, and harnessing Alberta's rich health data to advance health informatics.

Prospective Analysis of Arteriovenous Fistula Performance in the Context of Competing Risks.

Background: Many patients with newly created arteriovenous fistulas (AVF) may die before the AVF is needed for hemodialysis. However, formal competing risks frameworks are rarely used to report AVF patency, which may lead to biased estimates. We sought to identify the proportion of newly created AVF experiencing primary non-function and to describe long-term patency using a competing risk framework.

Associations Between Hearing Loss and Health-Related Costs: A Retrospective Population-Based Cohort Study.

Purpose: Hearing loss (HL) is a leading cause of disability worldwide, but its health-related costs have been incompletely studied. Our objective was to examine the association between HL and direct health care costs and identify subgroups in which costs associated with HL are especially high.

Method: This was a retrospective population-based cohort study of adults treated in a universal health care system between April 2008 and March 2019.

SEC-SAXS/MC Ensemble Structural Studies of the Microtubule Binding Protein Cdt1 Show Monomeric, Folded-Over Conformations.

Cdt1 is a mixed folded protein critical for DNA replication licensing and it also has a "moonlighting" role at the kinetochore via direct binding to microtubules and the Ndc80 complex. However, it is unknown how the structure and conformations of Cdt1 could allow it to participate in these multiple, unique sets of protein complexes. While robust methods exist to study entirely folded or unfolded proteins, structure-function studies of combined, mixed folded/disordered proteins remain challenging.

Adsorption Dynamics of Uremic Toxins to Cyclodextrin-Coated Magnetic Nano-Adsorbents.

Chronic kidney disease entails a progressive decline in kidney function, hindering the kidneys' ability to excrete fluid, electrolytes, and metabolites. This dysfunction leads to metabolite accumulation in the bloodstream, which can reach toxic concentrations. Hemodialysis is an effective means of treating patients with kidney failure, but it does not clear all toxins effectively.

A global snapshot on health systems capacity for detection, monitoring, and management of acute kidney injury: A multinational study from the ISN-GKHA.

Acute kidney injury (AKI) is a significant cause of morbidity and mortality, especially in low and lower-middle income countries. Data from the third iteration of the International Society of Nephrology Global Kidney Health Atlas (ISN-GKHA) were used to evaluate the organization of structures and services for the provision of AKI care in world countries and ISN regions. An international survey of key stakeholders (clinicians, policymakers, and patient advocates) from countries affiliated with the ISN was conducted from July to September 2022 to assess structures and services for AKI care across countries.

Induction of defence response in peanut elicited by sp. CHEP5: A biological strategy for control of smut disease caused by in the field.

Peanut is susceptible to many diseases; among them, peanut smut disease caused by is the most damaging, causing yield losses of 30%. Fungicide treatment is not effective to control this disease. In this scenario, biological control would be an alternative to diminish the disease.

Progress of nations in the organisation of, and structures for, kidney care delivery between 2019 and 2023: cross sectional survey in 148 countries.

Objective: To assess changes in key measures of kidney care using data reported in 2019 and 2023.

Design: Cross sectional survey in 148 countries.

Setting: Surveys from International Society of Nephrology Global Kidney Health Atlas between 2019 and 2023 that included participants from countries in Africa (n=36), Eastern and Central Europe (n=16), Latin America (n=18), the Middle East (n=11), Newly Independent States and Russia (n=10), North America and the Caribbean (n=8), North and East Asia (n=6), Oceania and South East Asia (n=15), South Asia (n=7), and Western Europe (n=21).

A Metabolomics Approach to Identify Metabolites Associated With Mortality in Patients Receiving Maintenance Hemodialysis.

Introduction: Uremic toxins contributing to increased risk of death remain largely unknown. We used untargeted metabolomics to identify plasma metabolites associated with mortality in patients receiving maintenance hemodialysis.

Methods: We measured metabolites in serum samples from 522 Longitudinal US/Canada Incident Dialysis (LUCID) study participants.

Global data monitoring systems and early identification for kidney diseases.

Background: Data monitoring and surveillance systems are the cornerstone for governance and regulation, planning, and policy development for chronic disease care. Our study aims to evaluate health systems capacity for data monitoring and surveillance for kidney care.

Methods: We leveraged data from the third iteration of the International Society of Nephrology Global Kidney Health Atlas (ISN-GKHA), an international survey of stakeholders (clinicians, policymakers and patient advocates) from 167 countries conducted between July and September 2022.

Global structures, practices, and tools for provision of chronic peritoneal dialysis.

Background: Worldwide, the uptake of peritoneal dialysis (PD) compared with hemodialysis remains limited. This study assessed organizational structures, availability, accessibility, affordability and quality of PD worldwide.

Methods: This cross-sectional study relied on data from kidney registries as well as survey data from stakeholders (clinicians, policymakers and advocates for people living with kidney disease) from countries affiliated with the International Society of Nephrology (ISN) from July to September 2022.

Global access and quality of conservative kidney management.

Background: Conservative kidney management (CKM) describes supportive care for people living with kidney failure who choose not to receive or are unable to access kidney replacement therapy (KRT). This study captured the global availability of CKM services and funding.

Methods: Data came from the International Society of Nephrology Global Kidney Health survey conducted between June and September 2022.

A global assessment of kidney care workforce.

Background: An adequate workforce is needed to guarantee optimal kidney care. We used the International Society of Nephrology Global Kidney Health Atlas (ISN-GKHA) to provide an assessment of the global kidney care workforce.

Methods: We conducted a multinational cross-sectional survey to evaluate the global capacity of kidney care and assessed data on the number of adult and paediatric nephrologists, the number of trainees in nephrology and shortages of various cadres of the workforce for kidney care.