Aminoglycoside tolerance in engages translational reprogramming associated with queuosine tRNA modification.

Tgt is the enzyme modifying the guanine (G) in tRNAs with GUN anticodon to queuosine (Q). is required for optimal growth of in the presence of sub-lethal aminoglycoside concentrations. We further explored here the role of the Q34 in the efficiency of codon decoding upon tobramycin exposure.

Dearomative Addition-Hydrogen Autotransfer for Branch-Selective -Heteroaryl C-H Functionalization via Ruthenium-Catalyzed C-C Couplings of Diene Pronucleophiles.

A novel mechanism for -heteroaryl C-H functionalization via dearomative addition-hydrogen autotransfer is described. Upon exposure to the catalyst derived from RuHCl(CO)(PPh) and Xantphos, dienes - suffer hydroruthenation to form allylruthenium nucleophiles that engage in -heteroaryl addition-β-hydride elimination to furnish branched products of C-C coupling - and -. Oxidative cleavage of isoprene adducts , , , and followed by ruthenium-catalyzed dynamic kinetic asymmetric ketone reduction provides enantiomerically enriched -heteroarylethyl alcohols - and, therefrom, -heteroarylethyl amines -.

Microelectronic Structure and Doping Nonuniformity of Phosphorus-Doped CdSeTe Solar Cells.

Optimizing group-V doping and Se alloying are two main focuses for advancing CdTe photovoltaic technology. We report on nanometer-scale characterizations of microelectronic structures of phosphorus (P)-doped CdSeTe devices using a combination of two atomic force microscopy-based techniques, namely, Kelvin probe force microscopy (KPFM) and scanning spreading resistance microscopy (SSRM). KPFM on device cross-section images distribution of the potential drop across the device.

Plural molecular and cellular mechanisms of pore domain encephalopathy.

variants in children with neurodevelopmental impairment are difficult to assess due to their heterogeneity and unclear pathogenic mechanisms. We describe a child with neonatal-onset epilepsy, developmental impairment of intermediate severity, and G256W heterozygosity. Analyzing prior KCNQ2 channel cryoelectron microscopy models revealed G256 as a node of an arch-shaped non-covalent bond network linking S5, the pore turret, and the ion path.

Catalytic Conversion of Carbon Dioxide to Long Chain Esters via Formate Hydroesterification.

CO2-based hydroesterification is an attractive route to produce value added ester compounds, which could replace CO-based hydroesterification processes if sufficient catalytic technologies are developed. One path to CO2-based hydroesterification is through an organoformate intermediate, which is then used in olefin hydroesterification to generate the desirable esters.  This route creates a net CO2-based hydroesterification process using tandem catalytic systems for CO2 hydrogenation to organoformate paired with formate-olefin hydroesterification.

Fluorous-Phase- and Chiral-Axis-Enhanced Fluorescent Sensitivity and Chemoselectivity for Cysteine Recognition.

Highly fluorinated naphthyl aldehyde and binaphthyl aldehyde ()- were designed and synthesized for fluorous-phase-based sensing. Greatly enhanced sensitivity and chemoselectivity in going from to ()- in the fluorescent detection of cysteine has been discovered. This is attributed to the increased structural rigidity of the axially chiral binaphthyl unit in ()- upon reaction with cysteine to form the corresponding thiazolidine product.

Neighborhood-level deprivation mediates racial and ethnic disparities in HCC diagnosis in Texas.

Background: Texas has the highest HCC rates in the United States, and the greatest burden is among Hispanics. Racial and ethnic disparities in HCC incidence have multiple underpinning factors. We conducted a mediation analysis to examine the role of neighborhood disadvantage (Area Deprivation Index) as a potential mediator of the association between neighborhood race and ethnicity distribution and neighborhood HCC case counts in Texas.

Neuropeptide Y in cancer-biological functions and potential clinical implications.

Neuropeptide Y (NPY) is a sympathetic neurotransmitter widely distributed in the peripheral and central nervous system, affecting many physiological functions. Consequently, dysregulation of the NPY system contributes to numerous pathological disorders, including stress, obesity, and cancer. The pleiotropic functions of NPY in humans are mediated by G protein-coupled receptors (Y1R, Y2R, Y5R), which activate several signaling pathways and thereby regulate cell growth, differentiation, apoptosis, proliferation, angiogenesis, and metabolism.

Beyond Physical and Mental Health: The Broader Impacts of Intimate Partner Violence on Psychosocial Well-Being Among Women and Men Veterans.

Research on the consequences of experiencing intimate partner violence (IPV) has predominantly focused on specific physical and mental health outcomes and have emphasized the impacts for women. Fewer studies have comprehensively documented IPV impacts on other aspects of psychosocial well-being and examined effects for both women and men. A sample of 1133 veterans (52.

Discovery of a parallel family of euglenatide analogs in Euglena gracilis.

The euglenatides are a family of hybrid polyketide-nonribosomal peptides produced by the unicellular algae Euglena gracilis. These compounds have antiproliferative activity against fungal pathogens and mammalian cancer cell lines. Analysis of E.

Pre- and post-diagnosis body weight trajectories in patients with localized renal cell cancer.

Purpose: Obesity in mid-life is a well-established risk factor for developing renal cell carcinoma (RCC); however, patients with RCC who are obese at the time of diagnosis have more favorable survival outcomes. To get better insight into the obesity paradox and determine the extent to which weight around diagnosis is stable, we examined pre- and post-diagnosis weight changes in patients with localized RCC.

Methods: We included 334 patients with localized RCC from the prospective cohort ReLife who self-reported body weight at multiple time points ranging from 2 years before to 2 years after diagnosis.

Factors and Strategies Influencing Chemotherapy Safety Among Oncology Nurses: A Qualitative Descriptive Study.

The purpose of this research is to describe the factors affecting hazardous chemotherapy exposure and strategies to foster chemotherapy safety among oncology nurses. Fifteen oncology nurses and 5 oncology nurse managers were recruited from 2 medical centers in the Midwest United States through convenience purposive sampling. A qualitative descriptive approach was employed.

Associating Race, Income, and Discrimination with COVID-19 Vaccine Status, Hesitancy, and Access in the United States: A Cross-sectional Study.

There is an emerging literature exploring the role of discrimination in vaccine hesitancy, particularly among Black individuals. The goal of the present research is to explore how COVID-19 vaccine hesitancy, vaccine status, and vaccine access are associated with race, income, and discrimination. A quota sample of 798 Black/White and low/high income participants from the United States completed an online survey between March 8 and April 19, 2023.

A phase I study of convection-enhanced delivery (CED) of liposomal-irinotecan using real-time magnetic resonance imaging in patients with recurrent high-grade glioma.

Background: Irinotecan demonstrates anti-tumor efficacy in preclinical glioma models but clinical results are modest due to drug delivery limitations. Convection enhanced delivery (CED) improves drug delivery by increasing intratumoral drug concentration. Real-time magnetic resonance imaging of infusate delivery during CED may optimize tumor coverage.

Maternal Social Phobia, but not Generalized Anxiety, Symptoms Interact with Early Childhood Error-Related Negativity to Prospectively Predict Child Anxiety Symptoms.

The error-related negativity (ERN) has been called a putative neural marker of anxiety risk in children, with smaller ERN amplitudes denoting greater risk in early childhood. Children of anxious mothers are at elevated risk for anxiety problems compared to children of non-anxious mothers. Still unknown is whether discrete maternal symptoms interact with child ERN to predict different forms of child anxiety risk, knowledge of which could increase our understanding of the specificity of known conditions and pathways for transgenerational effects.

Glucarpidase for Treatment of High-Dose Methotrexate Toxicity.

High-dose methotrexate (MTX) results in high rates of acute kidney injury (AKI), neutropenia, and hepatotoxicity. Glucarpidase is a recombinant enzyme that cleaves MTX, but clinical data supporting its use are scarce. We examined the association between glucarpidase administration and outcomes in adults with MTX-AKI from 28 cancer centers across the U.

Outpatient dermatology appointment wait times for United States military veterans, 2014-2021.

Trends in outpatient dermatology appointment wait times for United States (US) veterans are poorly characterized. Given concerns surrounding prolonged wait times at Veterans Health Administration (VHA) medical facilities, the federal government introduced the Maintaining Internal Systems and Strengthening Outside Networks (MISSION) Act in 2018, allowing veterans to receive VHA-reimbursed community care if VHA specialty care appointments cannot be scheduled within 28 days. Considering this expanded access to community care, we characterized among US veterans the (1) overall demand for dermatology appointments, (2) trends in average wait times, and (3) facility/geographic variation in wait times.

Incarceration is associated with higher mortality after trauma: An unreported health care disparity.

Background: While the United States has the highest incarceration rate worldwide, at nearly 1% of the adult population (more than 2 million people), insights regarding health disparities in this population remain limited. This retrospective cohort study represents the largest national database analysis of incarcerated trauma patients to date and investigates whether incarceration status is an independent risk factor for poor outcomes after trauma for US adults.

Methods: We analyzed data from the National Trauma Data Bank from 2017 to 2018.

Oral health and rehabilitation in face transplant recipients - a systematic review.

Background: Facial transplantation (FT) provides advanced solutions for severe facial defects by incorporating complex tissues such as bone, skin, oral mucosa and nerves. Oral health plays a critical role in FT, impacting both functional outcomes and transplant prognosis. Despite its importance, literature on oral health in FT recipients remains sparse.

Water Disinfection with Dual-Wavelength (222 + 275 nm) Ultraviolet Radiations: Microbial Inactivation and Reactivation.

Emerging mercury-free ultraviolet (UV) sources, such as krypton chloride excimer (KrCl*) lamps and UV light emitting diodes (UV-LEDs), emit diverse wavelengths with distinct inactivation mechanisms. The combined application has the potential to improve disinfection effectiveness through synergism. In this study, a mini-fluidic photoreaction system equipped with a KrCl* lamp (222 nm) and a strip of UV-LEDs (275 nm) was developed, which could individually/simultaneously deliver accurate UV radiation(s) at 222 nm (0.

Infants' resting-state functional connectivity and event-related potentials: A multimodal approach to investigating the neural basis of infant novelty detection.

Individual differences in how the brain responds to novelty are present from infancy. A common method of studying novelty processing is through event-related potentials (ERPs). While ERPs possess millisecond precision, spatial resolution remains poor, especially in infancy.

Parent-adolescent conversations about mental health and well-being shaped adolescents' anxiety/depression during the COVID-19 pandemic.

The COVID-19 pandemic posed challenges to the mental health and well-being (MHW) of adolescents. The present study aimed to explore how parent-adolescent conversations may have protected (or threatened) adolescent mental health during the first year of the pandemic. We examined how parents and adolescents discussed MHW together and the influence of parents' affective conversational climate on changes in adolescent anxiety/depression over time.

RACK1 MARylation regulates translation and stress granules in ovarian cancer cells.

Mono(ADP-ribosyl)ation (MARylation) is emerging as a critical regulator of ribosome function and translation. Herein, we demonstrate that RACK1, an integral component of the ribosome, is MARylated by the mono(ADP-ribosyl) transferase (MART) PARP14 in ovarian cancer cells. MARylation of RACK1 is required for stress granule formation and promotes the colocalization of RACK1 in stress granules with G3BP1, eIF3η, and 40S ribosomal proteins.

Students' Reports of Challenges, Experiences, and Perceptions of Equity, Diversity, and Inclusion at Veterinary Colleges in Canada and the United States.

Equity, diversity, and inclusion (EDI) in veterinary medicine affects veterinarians, students, clients, and the regional availability of veterinary services. Veterinary students from 5 colleges in Canada and 5 colleges in the United States were surveyed about their challenges, experiences, and perceptions related to EDI, resulting in 456 responses (10.4%).

Sub-5 Ångstrom Porosity Tuning in Calixarene-Derived Porous Liquids via Supramolecular Complexation Construction.

Precise sub-Ångstrom-level porosity engineering, which is appealing in gas separations, has been demonstrated in solid carbon, polymer, and framework materials but rarely achieved in the liquid phase. In this work, a gas molecular sieving effect in the liquid phase at sub-5 Ångstrom scale is created via sophisticated porosity tuning in calixarene-derived porous liquids (PLs). Type II PLs are constructed via supramolecular complexation between the sodium salts of calixarene derivatives and crown ether solvents.