ATAC and SAGA histone acetyltransferase modules facilitate transcription factor binding to nucleosomes independent of their acetylation activity.

Transcription initiation involves the coordination of multiple events, starting with activators binding specific DNA target sequences, which recruit transcription coactivators to open chromatin and enable binding of general transcription factors and RNA polymerase II to promoters. Two key human transcriptional coactivator complexes, ATAC (ADA-two-A-containing) and SAGA (Spt-Ada-Gcn5 acetyltransferase), containing histone acetyltransferase (HAT) activity, target genomic loci to increase promoter accessibility. To better understand the function of ATAC and SAGA HAT complexes, we used in vitro biochemical and biophysical assays to characterize human ATAC and SAGA HAT module interactions with nucleosomes and how a transcription factor (TF) coordinates these interactions.

Current evidence gaps to support systematic cytomegalovirus screening in pregnancy.

The benefits of screening for cytomegalovirus (CMV) infection during pregnancy remain a topic of debate. To date, no randomized trial has compared the impact of screening versus routine management on the prevention of severe sequelae in newborns. Furthermore, it is unclear what actions can be taken in case of a positive screening given that there is limited evidence of effective interventions as no treatments showed significant effect on the frequency of congenital cytomegalovirus infections and, as additional challenge, the window for effective treatment initiation after maternal infection is narrow, estimated to be as short as five weeks.

Modulating the Iron Microenvironment for a Cooperative Interplay Between Fe-N-C Single Atoms and FeC Nanoclusters on the Oxygen Reduction Reaction.

The coexistence of single atoms and nanoparticles is shown to increase the oxygen reduction performance in Fe-N-C electrocatalysts, but the mechanisms underlying this synergistic effect remain elusive. In this study, model Fe-N-C electrocatalysts with controlled ratios of FeN sites and FeC nanoclusters is systematically designed and synthesized. Experiments and density functional theory (DFT) computations reveal that FeC nanoclusters near FeN sites modulate the electron density of the Fe single-atom microenvironment through an electron withdrawing effect.

Measurement of Cumulative Drug Exposure from Clinical Data Warehouse.

Polypharmacy (PP) and hyperpolypharmacy (HPP), are prevalent among cancer patients and are associated with an increased risk of drug-drug interactions (DDI) and potentially inappropriate medications (PIM). This study aimed to characterize PP, HPP, DDI, and PIM in patients with hematological malignancies hospitalized for hematopoietic stem cell transplantation (HSCT) by introducing a novel metric: cumulative drug exposure. Clinical data warehouse (CDW) records were employed to develop algorithms that quantified patients' cumulative exposure to these prescribing determinants during hospitalization.

Isoleucine gate blocks K conduction in C-type inactivation.

Many voltage-gated potassium (Kv) channels display a time-dependent phenomenon called C-type inactivation, whereby prolonged activation by voltage leads to the inhibition of ionic conduction, a process that involves a conformational change at the selectivity filter toward a non-conductive state. Recently, a high-resolution structure of a strongly inactivated triple-mutant channel kv1.2-kv2.

Microwave Kinetic Inductance Detector Made of Molecular Beam Epitaxy (MBE)-Grown MgB2 Film.

We present a MgB-based Microwave Kinetic Inductance Detector (MKID) featuring a quality factor Q ~ 10 and noise equivalent power NEP ~ 10 W/Hz at 2 K. In comparison to YBCO-based MKIDs, the MgB detector shows greater sensitivity to both temperature and magnetic field, a result of its two-gap nature and relatively low critical Hc2 field. Our data indicate that MgB is more advantageous for MKID applications at temperatures lower than 3 K.

Comparison of Dual Monoclonal Antibody Therapies for COVID-19 Evolution: A Multicentric Retrospective Study.

Background: Neutralizing antibodies targeting the SARS-CoV-2 Spike protein reduce COVID-19-related risk of hospitalization, particularly in high-risk individuals. The COCOPREV-R study aimed to evaluate and compare clinical outcomes in high-risk SARS-CoV-2 patients treated with dual monoclonal antibody therapies and to identify associated virological factors.

Methods: The COCOPREV-R study retrospectively collected real-world data from high-risk patients receiving Bamlanivimab/Etesevimab or Casirivimab/Imdevimab dual monoclonal antibody therapies (22 February 2021 to 15 June 2021).

French Version of the User Mobile Application Rating Scale: Adaptation and Validation Study.

Background: Managing noncommunicable diseases effectively requires continuous coordination and monitoring, often facilitated by eHealth technologies like mobile health (mHealth) apps. The end-user version of the Mobile Application Rating Scale is a valuable tool for assessing the quality of mHealth apps from the user perspective. However, the absence of a French version restricts its use in French-speaking countries, where the evaluation and regulation of mHealth apps are still lacking, despite the increasing number of apps and their strong relevance in health care.

DDB2 expression lights the way for precision radiotherapy response in PDAC cells, with or without olaparib.

Pancreatic ductal adenocarcinoma (PDAC) is one of the deadliest cancers. Therapeutic options for PDAC are primarily restricted to surgery in the early stages of the disease or chemotherapy in advanced disease. Only a subset of patients with germline defects in BRCA1/2 genes can potentially benefit from personalized therapy, with the PARP inhibitor olaparib serving as a maintenance treatment for metastatic disease.

Probing the formation of a hetero-dimeric membrane transport complex with dual and mutagenesis.

The reversible association of transmembrane helices is a fundamental mechanism in how living cells convey information and respond to physiological events. The cardiac calcium transport regulator phospholamban (PLN) is an example of a single-span transmembrane protein that populates a variety of reversible and competing oligomeric states. PLN primarily forms monomers and pentamers in the membrane, where the PLN pentamer is a storage form and the PLN monomer forms a hetero-dimeric inhibitory complex with SERCA.

Promoting Health Literacy in the Workplace Among Civil Servants: Cross-Sectional Study.

Background: In 2022, the World Health Organization highlighted the alarming state of oral health (OH) worldwide and urged action to include OH in initiatives on noncommunicable diseases. The population needs improved OH skills and attitudes and an adequate level of OH literacy (OHL) and general health literacy (HL). The implementation of health promotion actions in the workplace, which is a part of most people's lives, appears to be an opportunity.

When and which second-line workup to perform for uveitis: a tertiary care center experience.

Objective: Uveitis are inflammatory disorders of various etiologies. The first-line etiological workup is currently poorly codified, and some patients undergo sequential investigations. However, what leads the clinician to perform subsequent exams and the relevance of such exams remain to be determined.