Publications by authors named "Gasper J"

Introduction: Five million US Veterans had possible exposure to open burn pits used for waste disposal through service in Iraq (2003-2011) and Afghanistan (2001-2014). Burn pits generate toxic exposures that may be associated with adverse health outcomes. We examined all-cause and cause-specific mortality in relation to deployment to bases with open burn pits.

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Only 1.9% of the individuals in the USA with alcohol use disorder (AUD) receive medication for AUD. Hospitalisation presents an opportunity to identify patients with AUD and offer treatment.

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As the COVID-19 transits to endemicity, the frequency of clinical testing and its utility for determining lineage prevalence has declined. This situation is not unique to Slovakia but reflects a global trend, as attention shifts from COVID-19 to other post-pandemic issues and emerging global health challenges. Nevertheless, the pandemic itself has spurred advancements in monitoring the epidemiological situation.

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COVID-19 vaccine became available in Tanzania during the first wave of the Omicron variant. During that time community seroprevalence of SARS-CoV-2 was already at 50%-80%. To date, it remains largely unknown whether ongoing vaccination with the primary series vaccines has any meaningful immune-boosting effects against newer Omicron subvariants.

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Importance: Many veterans who served in Afghanistan and Iraq during Operations Enduring Freedom (OEF) and Operation Iraqi Freedom (OIF) were deployed to military bases with open burn pits and exposed to their emissions, with limited understanding of the long-term health consequences.

Objective: To determine the association between deployment to military bases where open burn pits were used for waste disposal and the subsequent risk of developing respiratory and cardiovascular diseases.

Design, Setting, And Participants: This retrospective observational cohort study used Veterans Health Administration medical records and declassified deployment records from the Department of Defense to assess Army and Air Force veterans who were deployed between 2001 and 2011 and subsequently received health care from the Veterans Health Administration, with follow-up through December 2020.

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Article Synopsis
  • Associations between changes in prescribed opioid doses over 30 days and the risk of fatal overdoses were explored, revealing that both significant increases and decreases in dosage raise the risk within the following 15 days.
  • A study conducted in California examined over 5 million patients using prescription data, identifying key dose categories and their correlation with overdose occurrences.
  • Findings indicate that patients experiencing major dose shifts (up or down) face heightened risks, especially those with very high current or previous dosing levels, while concurrent benzodiazepine prescriptions further increase overdose vulnerability.
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Objective: Estimate the impact of the Supplemental Nutrition Assistance Program (SNAP) time limit for able-bodied adults without dependents (ABAWD) on SNAP participation, employment, and earnings.

Design: A quasi-experimental study using state administrative SNAP and earnings data to compare outcomes for SNAP participants before and after the time limit went into effect.

Participants: Supplemental Nutrition Assistance Program participants in the study cohorts in Colorado, Missouri, and Pennsylvania (N = 153,599).

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What Is Known And Objective: Individuals with medication adherence challenges or a preference for long-acting medications may benefit from extended-release naltrexone (XR-NTX) for treatment of alcohol use disorder (AUD). Individuals on therapeutic anticoagulation were excluded from XR-NTX studies and its safety in this population has not been reported.

Case Summary: We conducted structured retrospective chart review of six individuals who received XR-NTX for AUD while on therapeutic anticoagulation between November 2019 and Deccember 2020.

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Background: Patients on long-term opioid therapy are particularly vulnerable to disruptions in medication access, especially during traumatic and chaotic events such as wildfires and other natural disasters.

Objectives: To determine whether past highly destructive California wildfires were associated with disrupted access to prescription opioids for patients receiving long-term, and therefore physically dependent on, opioid medications.

Methods: Using California prescription drug monitoring program data, this retrospective study selected patients with long-term prescription opioid use episodes residing in ZIP code tabulation areas impacted by either the Camp Fire or Tubbs Fire.

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Small molecule adjuvants that enhance the activity of established antibiotics represent promising agents in the battle against antibiotic resistance. Adjuvants generally act by inhibiting antibiotic resistance processes, and specifying the process acted on is a critical step in defining an adjuvant's mechanism of action. This step is typically carried out biochemically by identifying molecules that bind adjuvants and then inferring their roles in resistance.

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This project sought to develop evidence-based guidelines for the administration of analgesics for moderate to severe pain by Emergency Medical Services (EMS) clinicians based on a separate, previously published, systematic review of the comparative effectiveness of analgesics in the prehospital setting prepared by the University of Connecticut Evidence-Based Practice Center for the Agency for Healthcare Research and Quality (AHRQ). A technical expert panel (TEP) was assembled consisting of subject matter experts in prehospital and emergency care, and the development of evidence-based guidelines and patient care guidelines. A series of nine "patient/population-intervention-comparison-outcome" (PICO) questions were developed based on the Key Questions identified in the AHRQ systematic review, and an additional PICO question was developed to specifically address analgesia in pediatric patients.

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Background: Tools are needed to aid clinicians in estimating their patients' risk of transitioning to long-term opioid use and to inform prescribing decisions.

Objective: The objective of this study was to develop and validate a model that predicts previously opioid-naive patients' risk of transitioning to long-term use.

Research Design: This was a statewide population-based prognostic study.

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Background: Increasing naloxone access in communities has been a priority to mitigate the increasing rate of opioid-related overdose deaths.

Objectives: The aims of this telephone survey were to estimate the availability of naloxone furnishing (provided without a prescription) by community pharmacists in California and examine the changes that occurred between 2018 and 2020.

Methods: A telephone audit of a random representative sample of 1271 California licensed community pharmacies was conducted from January 22, 2020, to February 24, 2020.

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Background: Limiting the incidence of opioid-naïve patients who transition to long-term opioid use (i.e., continual use for > 90 days) is a key strategy for reducing opioid-related harms.

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Objectives: Opioid use disorder remains undertreated in the United States. One of the primary mechanisms for expanding access to treatment has been the use of buprenorphine. In this study, we compare prescribing trends of buprenorphine paid through Medicaid versus other payer sources.

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Background: Multiple sclerosis adult day programs (MSADPs) are nonmedical service programs that provide care and support to people with multiple sclerosis (MS) experiencing levels of impairment that interfere with employment and activities of daily living. The purpose of this study was to identify how program participants think MSADPs benefit them.

Methods: We conducted in-depth interviews with 95 people with MS who were MSADP participants.

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Background: Multiple sclerosis adult day programs (MSADPs) offer life-enhancing services for individuals and informal caregivers affected by multiple sclerosis (MS), including medical care, rehabilitation therapies, nutrition therapy, cognitive training, tailored education, exercise programs, and social interaction. The purpose of this study was to examine the effects of MSADPs on health-related quality of life (HRQOL) and health care utilization of persons with MS and HRQOL and well-being of informal caregivers.

Methods: Using a quasi-experimental design, outcomes between baseline and 1-year follow-up in persons with MS and informal caregivers who used MSADP services and a comparison group of similar persons with MS and caregivers who did not use MSADP services were compared.

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Inhaled aztreonam is increasingly used for chronic suppression in patients with cystic fibrosis (CF), but the potential for that organism to evolve aztreonam resistance remains incompletely explored. Here, we performed genomic analysis of clonally related pre- and posttreatment CF clinical isolate pairs to identify genes that are under positive selection during aztreonam therapy We identified 16 frequently mutated genes associated with aztreonam resistance, the most prevalent being and , and 13 of which increased aztreonam resistance when introduced as single gene transposon mutants. Several previously implicated aztreonam resistance genes were found to be under positive selection in clinical isolates even in the absence of inhaled aztreonam exposure, indicating that other selective pressures in the cystic fibrosis airway can promote aztreonam resistance.

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To characterize the consequences of eliminating essential functions needed for peptidoglycan synthesis, we generated deletion mutations of Acinetobacter baylyi by natural transformation and visualized the resulting microcolonies of dead cells. We found that loss of genes required for peptidoglycan precursor synthesis or polymerization led to the formation of polymorphic giant cells with diameters that could exceed ten times normal. Treatment with antibiotics targeting early or late steps of peptidoglycan synthesis also produced giant cells.

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The opioid crisis is a growing concern for Americans, and it has become the leading cause of injury-related death in the United States. An adjunct to respiratory support that can reduce this high mortality rate is the administration of naloxone by Emergency Medical Services (EMS) practitioners for patients with suspected opioid overdose. However, clear evidence-based guidelines to direct EMS use of naloxone for opioid overdose have not been developed.

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This study assesses the availability of pharmacist-furnished naloxone 2 years after implementation of legislation in California allowing provision of the drug without a physician’s prescription.

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Slow-growing bacteria are insensitive to killing by antibiotics, a trait known as antibiotic tolerance. In this study, we characterized the genetic basis of an unusually robust β-lactam (meropenem) tolerance seen in species. We identified tolerance genes under three different slow-growth conditions by extensive transposon mutant sequencing (Tn-seq), followed by single mutant validation.

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For over 100 years, sharks have been encountered, as either directed catch or incidental catch, in commercial fisheries throughout the Northeast Pacific Ocean. A long-standing directed fishery for North Pacific Spiny Dogfish (Squalus suckleyi) has occurred and dominated shark landings and discards. Other fisheries, mainly for shark livers, have historically targeted species including Bluntnose Sixgill Shark (Hexanchus griseus) and Tope Shark (Galeorhinus galeus).

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and other carbapenem-resistant members of the family are a major cause of hospital-acquired infections, yet the basis of their success as nosocomial pathogens is poorly understood. To help provide a foundation for genetic analysis of , we created an arrayed, sequence-defined transposon mutant library of an isolate from the 2011 outbreak of infections at the U.S.

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Introduction: Patients receiving medication assisted therapy (MAT) for opioid use disorder have high cigarette smoking rates. Cigarette smoking interventions have had limited success. We evaluated an intervention to increase cigarette abstinence rates in patients receiving buprenorphine-assisted therapy.

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