Publications by authors named "John Lowe"

Background: Hypertension is a major risk factor for cardiovascular (CV) health in Native Americans (NAs), contributing to disparities in mortality, hospitalizations, and complications that include stroke and kidney diseases. However, despite the benefits of lifestyle modifications for CV health, systemic and cultural barriers hinder their adoption. To promote self-care behaviors, interventions must be culturally tailored and sustainable.

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The emerging threat of H5N1 avian influenza in humans has renewed the need for effective public health communication strategies, especially in light of reduced public trust in governmental institutions. During recent health crises, personal healthcare providers, particularly physicians, have emerged as the most trusted sources of information, surpassing institutions like the CDC and local health departments. This study explores the role of physicians as key messengers for health information related to H5N1 risk, vaccine guidance, and interventions among the U.

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Immuno-polymerase chain reaction (iPCR) is an analytical technology that combines the specificity of antibody reagents with the sensitivity of polymerase chain reaction (PCR) signal amplification. Here we describe the optimization and qualification of an ultra-sensitive iPCR method designed to detect and quantify active (reduced form) interleukin-33 (IL-33) in human samples. The modified assay incorporates several improvements over a previous version utilized in research studies.

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Objectives: Air medical services evacuation of patients with viral hemorrhagic fevers (VHFs) is a complex process. The United States National Emerging Special Pathogens Training and Education Center held an in-person tabletop exercise (TTX) in June 2023 to review and evaluate global processes and plans for long-range VHF air transportation capabilities. The TTX sought to test the coordination, prioritization, capacities, and plans for using VHF transportation capabilities when multiple countries simultaneously request support in air medical services evacuation of their sick or exposed citizens to a high-level isolation unit in their country for care.

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Since 2021, the United States has experienced a significant increase in H5N1 ("avian flu") infections, spreading from wild fowl to domestic poultry, dairy cattle, and some humans, primarily agricultural workers. This study examines urban-rural differences in willingness to receive an H5N1 vaccine and change dietary behavior based on potential CDC recommendations. A survey (Aug 5-15, 2024) sampled 5,000 urban and 5,000 rural participants via online panels and live operator calls.

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Efforts to prepare Ru-ZnPhos complexes (ZnPhos = bis(2-diphenylphosphinophenyl)zinc) through reactions of the bis-cyclometallated phosphine RuZn complex [Ru(PPh)(CHPPh)(ZnMe)] (1) with the N-Et and N-Pr substituted N-heterocyclic carbenes IEtMe (1,3-diethyl-4,5-dimethylimidazol-2-ylidene) and IPrMe (1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene) gave instead the cycloruthenated/cyclozincated bimetallic species [Ru(IEtMe')(CHPPh)(PPh(CH)Zn{IEtMe})H] (5; IEtMe' = cyclometallated IEtMe) and [Ru(PPh)(CHPPh)(PPh(CH)Zn{IPrMe})H] (7) respectively, both of which feature new Zn-NHC bonds. An alternative approach involving substitution of free ZnPhos into ruthenium monodentate phosphine precursors proved marginally more successful. Heating [Ru(PPh)(CO)H] with excess ZnPhos gave a tetrametallic species 13 comprised of a Ru centre coordinated to ZnPhos and two ZnCHPPh ligands formed Zn-C cleavage of two ZnPhos ligands.

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Anti-drug antibody (ADA) assays are an important element in the suite of bioanalytical methods required for assessment of the safety and efficacy of recombinant-protein therapeutics. As such, and following extensive optimization, there is an expectation that clinical ADA assays be fully validated for multiple performance parameters, including sensitivity, specificity, reagent stability, and robustness. Among critical reagents used in ADA assays, ADA positive controls (PCs) play a crucial role in multiple stages of assay development and validation, including selection of assay format, establishing assay cut-points, estimating assay relative sensitivity, assessing assay precision, as well as ensuring acceptable assay performance during sample testing.

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Reaction of [Ru(IPr)(CO)H][BAr] (; IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene; BAr = B{3,5(CF)CH}) with an excess of ZnH in THF gives the structurally characterized neutral Ru(ZnH) complex [Ru(IPr)(CO)(ZnH)H] () and Ru(ZnH) salt [Ru(IPr)(CO)(ZnH)H][BAr] (). Crystallographic and computational analyses show the presence of both bridging Ru-H-Zn hydrides and terminal Ru-hydrides in the two products. Calculations also identify a low-energy H/ZnH exchange pathway that rationalizes the experimentally observed (EXSY) fluxionality of the hydrides in .

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During the COVID-19 pandemic, meatpacking workers were disproportionately affected by disease. Large outbreaks at meatpacking facilities resulted in loss of life and threatened the well-being of workers across the globe. Much work was done throughout the pandemic to understand and prevent these outbreaks.

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This case study describes findings from an exercise conducted in April 2023 to assess the readiness of the National Quarantine Unit (NQU) and identify opportunities for improvement. The exercise is part of a multiyear effort to assess the readiness of quarantine and transport capabilities at the NQU through annual workshops, discussion-based exercises, and functional and full-scale exercises. The April 2023 exercise tested interagency coordination and decisionmaking, transport of individuals for monitoring, quarantine unit operations, and escalation of care for symptomatic individuals out of quarantine to high-level isolation units in the United States.

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Reactions of a m-terphenylhydridostannylene with β-diketiminato magnesium and calcium hydrides provide bis-μ-hydrido species, the heterobimetallic constitutions of which are maintained after the addition of THF donor solvent. In both cases, reactions with hex-1-ene result in the formation of tetravalent organostannyl alkaline earth derivatives. Whereas the magnesium reagent undergoes facile twofold addition, the calcium-centered process is arrested after a single alkene reduction event.

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The reaction of [Ir(IPr)H][BAr] (; IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene; BAr = B{CH(3,5-CF)}) with ZnMe proceeds with CH elimination to give [Ir(IPr)(IPr')(ZnMe)H][BAr] (, where (IPr') is a cyclometalated IPr ligand). reacts with H to form tetrahydride [Ir(IPr)(ZnMe)H][BAr], , that loses H under forcing conditions to form [Ir(IPr)(ZnMe)H][BAr], . Crystallization of also results in the formation of its noncyclometalated isomer, [Ir(IPr)(ZnMe)][BAr], , in the solid state.

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In recent history, outbreaks of high-consequence infectious diseases (HCIDs) have raised health security concerns among the global community. As HCIDs continue to emerge, public health systems around the world experience the burden of implementing adequate preparedness and response measures to ensure the safety and security of their populations. HCID outbreak response efforts have highlighted the need for specialized training in safety and infection prevention and control for frontline workers who may encounter ill patients.

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High-level isolation units (HLIUs) have been established by countries to provide safe and optimal medical care for patients with high-consequence infectious diseases. We aimed to identify global high-level isolation capabilities and determine gaps and priorities of global HLIUs, using a multiple method approach that included a systematic review of published and gray literature and a review of Joint External Evaluations and Global Health Security Index reports from 112 countries. A follow-up electronic survey was distributed to identified HLIUs.

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The outcomes of this study revealed the importance of recruiting local Native American tribal community members as participants in an Adult Facilitator Trainee Program for a cultural based intervention, Intertribal Talking Circle (ITC), that addresses prevention of substance use among Native American youth. Survey results indicate that Native-Reliance (cultural identity) and self-efficacy increased among the trainees from base-line to 3-months post the training session. Themes emerged from qualitative interviews conducted with the participants that described their readiness to implement and sustain the Talking Circle intervention program within their tribal communities after the research project was completed.

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Objective: Westernized alcohol and commercial tobacco use prevention approaches for Native Americans have not been effective, or sustainable. The overall objective of this study examined the effect of the culturally based Urban Talking Circle (UTC) intervention versus standard education (SE) program for the prevention of alcohol and commercial tobacco use among urban Native American youth.

Design: The study employed a 2-condition quasi-experimental design and utilized convenience and snowball sampling methods for recruiting 100 urban Native American youth participants in two urban Native American community program locations in Florida.

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There is a need for intervention studies to address mental health issues with Indigenous youth. The purpose of this work is to: 1) consider calming approaches introduced by Native-American adolescents who described in writing how they manage day-to-day stress; and 2) identify culturally relevant constructs (elements and principles) for development of mental health promotion interventions for use with Indigenous youth. Central ideas shared by Native-American adolescents were merged with existing literature to identify essential elements and guiding principles for intervention development.

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Prior research suggests that culturally aligned, accessible and lower-barrier interventions are well-placed to align with the needs of American Indian and Alaska Native (AI/AN) people with alcohol use disorder (AUD). Taking into account community members' suggestions and the need for physical distancing during the COVID-19 pandemic, our team developed a protocol for virtual Harm Reduction Talking Circles (HaRTC) to incorporate these points. The aims of this 8-week, single-arm pilot were to initially document feasibility, acceptability, and outcomes associated with attendance at virtual HaRTC, which integrates the accessibility of virtual connection, a lower-barrier harm-reduction approach, and a culturally aligned intervention.

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A series of iso-carbamate complexes have been synthesized by the reaction of [Sn(OPr)] or [Sn(OBu)] with either aryl or alkyl isocyanates, ONC-R (R = 2,4,6-trimethylphenyl (Mes), 2,6-diisopropylphenyl (Dipp), isopropyl (Pr), cyclohexyl (Cy) and -butyl (Bu)). In the case of aryl isocyanates, mono-insertion occurs to form structurally characterized complexes [Sn{κ--R-NC(OPr)O}(μ-OPr)] (: R = Mes, : R = Dipp) and [Sn{κ--R-NC(OBu)O}(μ-OBu)] (: R = Mes, : R = Dipp). The complicated solution-state chemistry of these species has been explored using H DOSY experiments.

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Article Synopsis
  • A study was conducted to determine if the macrolide antibiotic azithromycin can improve survival rates without chronic lung disease in preterm infants born before 30 weeks of gestation.
  • The AZTEC trial involved 799 preterm infants across 28 UK neonatal units and randomly assigned them to receive either azithromycin or a placebo.
  • The primary outcome measured was the survival of infants without developing significant lung disease by 36 weeks postmenstrual age.
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