Synthesis of [Fe[(μ-SeCH)NH](CN)(CO)] and Related Iron Selenoates.

The dianion [Fe[(μ-SeCH)NH](CN)(CO)] ([]) is of interest for the preparation of the selenide analog of the active site of the [FeFe]-hydrogenases. The obvious route for its synthesis by cyanation of Fe[(μ-SeCH)NH](CO) () fails for reasons that this paper explains and resolves. We show that CN cleaves Se-C bonds in .

Impact of Halide (Cl vs I) Identity on the Preferred Positioning of Substituents between Al and M (M = Co, Rh, Ir) in PAlP Pincer Complexes.

Protolysis of AlMe or AlEt with 2-diisopropylphosphinopyrrole () resulted in alane/bis(phosphine) pincer ligands containing two flanking phosphines and a central Al-Me (), Al-Et () unit. Reactions of with [(COD)MI] (COD = 1,5-cyclooctadiene; M = Rh or Ir) in the presence of pyridine produced pincer complexes ( and ) with M supported by the PAlP tridentate ligand, and pyridine, methyl, and iodide as monodentate ligands for Al or M. The analogous reaction of with [(COD)MI] and pyridine resulted in the formation of the analogous compounds and with hydride in place of methyl.

Chloride, Alkoxide, or Silicon: The Bridging Ligand Dictates the Spin State in Dicobalt Expanded Pincer Complexes.

We report the synthesis and characterization of a series of high- and low-spin dicobalt complexes of the PNNP expanded pincer ligand. Reacting this dinucleating ligand in its neutral form with two equiv of CoCl(tetrahydrofuran) yields a high-spin dicobalt complex featuring one Co inside and one Co outside of the dinucleating pocket. Performing the same reaction in the presence of two equivalents of KOtBu provides access to a high-spin dicobalt complex wherein both Co centers are bound within the PNNP pocket, and this complex also features a bridging OtBu ligand.

A Comprehensive and Comparative Review of Global Gastric Cancer Treatment Guidelines: 2024 Update.

Differences in demographics, medical expertise, and patient healthcare resources across countries have led to significant variations in guidelines. In light of these differences, in this review, we aimed to explore and compare the most recent updates to gastric cancer treatment from five guidelines that are available in English. These English-version guidelines, which have been recently published and updated for journal publication, include those published in South Korea in 2024, Japan in 2021, China in 2023, the United States in 2024, and Europe in 2024.

Usage patterns of cognitive assessments during Medicare's Annual Wellness Visit: A national survey.

Introduction: Medicare's Annual Wellness Visit (AWV) is a logical opportunity for early detection of cognitive impairment, but recent data for uptake and cognitive assessments during it are lacking.

Methods: We surveyed Medicare beneficiaries of a nationally representative panel about use of AWV and cognitive assessments and analyzed associations between uptake and beneficiaries' characteristics.

Results: Of 1871 participants, 80% had an AWV, among whom 31% underwent formal cognitive testing, 35% were asked about memory problems, including 15% having both.

Left atrial reservoir strain as a predictor of cardiac dysfunction in a murine model of pressure overload.

Aim: Left atrial (LA) strain is emerging as a valuable metric for evaluating cardiac function, particularly under pathological conditions such as pressure overload. This preclinical study investigates the predictive utility of LA strain on cardiac function in a murine model subjected to pressure overload, mimicking pathologies such as hypertension and aortic stenosis.

Methods: High-resolution ultrasound was performed in a cohort of mice (n = 16) to evaluate left atrial and left ventricular function at baseline and 2 and 4 weeks after transverse aortic constriction (TAC).

From subsidies to stressors: Positively skewed ecological gradients alter biological responses to nutrients in streams.

Subsidy-stress gradients offer a useful framework for understanding ecological responses to perturbation and may help inform ecological metrics in highly modified systems. Historic, region-wide shifts from bottomland hardwood forest to row crop agriculture can cause positively skewed impact gradients in alluvial plain ecoregions, resulting in tolerant organisms that typically exhibit a subsidy response (increased abundance in response to environmental stressors) shifting to a stress response (declining abundance at higher concentrations). As a result, observed biological tolerance in modified ecosystems may differ from less modified regions, creating significant challenges for detecting biological responses to restoration efforts.

Resorcinol-based Bolaamphiphilic Quaternary Ammonium Compounds.

Quaternary ammonium compounds (QACs) play crucial disinfectant roles in healthcare, industry, and domestic settings. Most commercially utilized QACs like benzalkonium chloride have a common architectural theme, leading to a rise in bacterial resistance and urgent need for novel structural classes. Some potent QACs such as chlorhexidine (CHX) and octenidine (OCT) feature a bolaamphiphilic architecture, comprised of two cationic centers at the molecular periphery and a non-polar region connecting them; these compounds show promise to elude bacterial resistance mechanisms.

A 37-Year Retrospective Analysis Reveals a High Rate of Cutaneous Angiosarcoma of the Scalp in Okinawa, Japan.

Angiosarcoma (AS) is a rare, aggressive malignancy originating from vascular or lymphatic endothelial cells. Despite its severity, little is known about its epidemiology, and no geographical regions have previously been identified as having an exceptionally high incidence. We retrospectively analyzed medical records spanning 37 years (1987-2023) in Okinawa, Japan, identifying 135 cases of AS that were used to calculate its incidence.

Neuron-derived extracellular vesicles as a liquid biopsy for brain insulin dysregulation in Alzheimer's disease and related disorders.

Extracellular vesicles (EVs) have emerged as novel blood-based biomarkers for various pathologies. The development of methods to enrich cell-specific EVs from biofluids has enabled us to monitor difficult-to-access organs, such as the brain, in real time without disrupting their function, thus serving as liquid biopsy. Burgeoning evidence indicates that the contents of neuron-derived EVs (NDEs) in blood reveal dynamic alterations that occur during neurodegenerative pathogenesis, including Alzheimer's disease (AD), reflecting a disease-specific molecular signature.

Therapeutic Errors Associated With Antithrombotic Medications Reported to United States Poison Centers.

The objective of this study was to investigate the characteristics and trends of therapeutic errors in non-healthcare facility settings associated with antithrombotic medications reported to United States Poison Centers by analyzing data from the National Poison Data System from 2000 to 2021. There were 57 288 reported therapeutic error-related exposures involving antithrombotic medications as the primary substance. The rate of therapeutic errors increased by 590.

Understanding Cancer Treatment Decision Making Among Cancer Survivors: Weighing Cancer Recurrence Versus Cardiotoxicity.

Background: Nearly 20% of US cancer survivors develop cardiovascular disease (CVD) from cardiotoxic cancer treatments. Patients and providers may consider alternative treatments to lower cardiotoxicity risk, but these may be less effective at preventing relapse/recurrence, presenting a difficult tradeoff.

Aims: This study explored survivors' cancer treatment decision-making when weighing this tradeoff.

Medicaid and the Children's Health Insurance Program: Understanding These Programs to Promote Advancements.

Medicaid and the Children's Health Insurance Program together represent the largest healthcare coverage programs in the United States, providing benefits for approximately one in four residents and more than half of all children. Both programs are funded by a combination of federal and state dollars with more than 70% of beneficiaries enrolled in managed care plans. The size and scope of these programs underpin the importance of a working knowledge to understand healthcare delivery in the United States.

New Index Demonstrates Association between Social Vulnerability, Environmental Burden, and Kidney Failure Risk among Individuals with Glomerular Disease.

Background: The Centers for Disease Control and Prevention (CDC) Environmental Justice Index Social-Environmental Ranking (EJI-SER) combines a Social Vulnerability Module (SV) with an Environmental Burden Module (EB) to characterize cumulative environmental and social burden at the census tract level. This analysis evaluates the association between EJI-SER and kidney outcomes in glomerular disease (GD) patients.

Methods: Cure Glomerulopathy (CureGN) is an observational cohort study of adults and children with biopsy-proven GD.

Impact of an Oregon health policy aimed at strengthening adolescent linkage to outpatient mental health care from the emergency department.

Background: Oregon introduced a state policy, HB 3090, on October 6, 2017, which increased requirements on emergency departments (EDs) to improve transitions to outpatient mental health care. The objective of this study was to examine the policy's impact among low-income adolescent patients who face severe barriers to follow-up.

Methods: This was a retrospective cohort study of visits by Medicaid enrollees ages 14-18 presenting to any Oregon ED for a mental health concern between January 1, 2016, and December 31, 2019.

Sprayed Aqueous Microdroplets for Spontaneous Synthesis of Functional Microgels.

The development of sustainable synthesis route to produce functional and bioactive polymer colloids has attracted much attention. Most strategies are based on the polymerization of monomers or crosslinking of prepolymers by enzyme- or cell-mediated reactions or specific catalysts in confined emulsions. Herein, a facile solution spray method was developed for spontaneous synthesis of microgels without use of confined emulsion, additional initiators/catalysts and deoxygenation, which addresses the challenges in traditional microgel synthesis.

From preschool to policy: A scoping review of recommended interventions for a systems approach to improve dietary intake in early childhood.

Early childhood is a key opportunity to establish healthy eating behaviors and prevent future non-communicable diseases associated with poor diets. How to effectively intervene in the system of the many determinants influencing children's dietary intake remains unclear. This scoping review aimed to map the determinants of nutrition and eating that have been addressed in early childhood nutrition interventions and identify which of these improve dietary intake.

Breeding bird sensitivity to urban habitat quality is multi-scale and strongly dependent on migratory behavior.

Human-caused conversion of natural habitat areas to developed land cover represents a major driver of habitat loss and fragmentation, leading to reorganization of biological communities. Although protected areas and urban greenspaces can preserve natural systems in fragmented landscapes, their efficacy has been stymied by the complexity and scale-dependency underlying biological communities. While migratory bird communities are easy to-study and particularly responsive to anthropogenic habitat alterations, prior studies have documented substantial variation in habitat sensitivity across species and migratory groups.

Optimized directed evolution of E. coli leucyl-tRNA synthetase adds many noncanonical amino acids into the eukaryotic genetic code including ornithine and Nε-acetyl-methyllysine.

Site-specific incorporation of noncanonical amino acids (ncAAs) into proteins in eukaryotes has predominantly relied on the pyrrolysyl-tRNA synthetase/tRNA pair. However, access to additional easily engineered pairs is crucial for expanding the structural diversity of the ncAA toolbox in eukaryotes. The Escherichia coli-derived leucyl-tRNA synthetase (EcLeuRS)/tRNA pair presents a particularly promising alternative.

Highly Efficient Compositional and Compound Specific Isotopic Analysis of Volatile Primary Amines and Ammonia in the Murchison Meteorite Using SPME On-Fiber Derivatization: Optimization for Bennu Sample Analyses.

Rationale: Extraterrestrial amines and ammonia are critical ingredients for the formation of astrobiologically important compounds such as amino acids and nucleobases. However, conventional methods for analyzing the composition and isotopic ratios of volatile amines suffer from lengthy derivatization and purification procedures, high sample mass consumption, and chromatographic interferences from derivatization reagents and non-target compounds.

Methods: Here we demonstrate a highly efficient method to analyze the composition and compound specific isotopic ratios of C to C amines as well as ammonia based on solid phase micro-extraction (SPME) on-fiber derivatization.

A Clinicopathologic and Molecular Reappraisal of Myxoinflammatory Fibroblastic Sarcoma-A Controversial and Pathologically Challenging Low-Grade Sarcoma.

Purpose: Myxoinflammatory fibroblastic sarcoma (MIFS) is a rare, low-grade sarcoma affecting with predilection the acral soft tissues of middle-aged adults. Clinically, MIFS is associated with a high rate of local recurrence but infrequent distant metastases. The diagnosis remains challenging due to their wide histologic spectrum and overlap with reactive, benign, and low-grade malignant lesions.

Examining the Impact of Race and Sex on the Incidence of Positive Surgical Margins in Oral Cavity Squamous Cell Carcinoma.

Objective: The aim of this study was to compare the incidence of positive surgical margins (PSMs) between different races and sexes in a national cohort.

Materials And Methods: In this study, we analyzed the association between race and sex disparities and the incidence of PSMs based on data from the 2004-2016 National Cancer Database (NCDB). The NCDB includes deidentified data collected from over 1500 hospitals as part of the Commission on Cancer approvals program and represents over 70% of new cancer cases in the United States.

Anatomical mapping of neural lineages expressing the transient receptor potential vanilloid type 1 receptor using a modified and combined PACT and CUBIC protocol for rapid tissue clearance.

Aim: Tissue clearance is a rapidly evolving technology that allows for the three-dimensional imaging of intact biological tissues. Preexisting tissue-clearing techniques, such as Passive Clarity Technique (PACT) and Clear Unobstructed Brain Imaging Cocktails and Computational Analysis (CUBIC), clear tissues adequately but have distinct disadvantages, such as taking extensive time to clear tissues and degradation of endogenous tissue fluorescence. We developed a new tissue-clearing technique combining PACT and CUBIC protocols to map the neural lineages expressing the transient receptor potential vanilloid type 1 (TRPV1) receptor.

Internalizing Psychiatric Symptoms in People With Mosaicism for Trisomy 21.

People with mosaicism for trisomy 21 have been shown to exhibit many of the same phenotypic traits present in people with non-mosaic Down syndrome, but with varying symptom severity. However, the behavioral phenotype of people with mosaic Down syndrome (mDS) has not been well characterized. This study aimed to examine the prevalence of self-report and caregiver-report symptoms of depression and anxiety among a sample of 62 participants with mDS aged 12-46 and assess their association with the percentage of trisomy 21 in blood and/or buccal mucosa cells.