Publications by authors named "Marshall B"

Article Synopsis
  • Sarcoid-like reaction (SLR) is an immune response affecting lymph nodes and organs, which doesn't fulfill the criteria for systemic sarcoidosis, and can be associated with certain diseases like Chronic lymphocytic leukaemia (CLL) and Amyotrophic lateral sclerosis (ALS).
  • A 60-year-old male patient with treated CLL developed ALS symptoms following exposure to Venetoclax and Rituximab, presenting with rashes and weakness that progressed over a year.
  • Diagnosis complications included atypical signs and symptoms, leading to misdiagnosis of neurosarcoidosis and challenges in treatment, despite initial interventions with prednisolone and infliximab.
View Article and Find Full Text PDF

Background: HIV continues to disproportionately impact men who have sex with men (MSM) in the United States (US). Pre-exposure prophylaxis (PrEP) is effective, but disparities persist. Limited studies have conducted systematic evaluations of social determinants of health (SDOH) and their effects on PrEP persistence among MSM.

View Article and Find Full Text PDF

The genomes of human gut bacteria in the genus Bacteroides include numerous operons for biosynthesis of diverse capsular polysaccharides (CPSs). The first two genes of each CPS operon encode a locus-specific paralog of transcription elongation factor NusG (called UpxY), which enhances transcript elongation, and a UpxZ protein that inhibits noncognate UpxYs. This process, together with promoter inversions, ensures that a single CPS operon is transcribed in most cells.

View Article and Find Full Text PDF

Introduction: Long non-coding RNAs (lncRNAs) are a subset of RNA molecules that have been shown to be involved in gene regulation. A lot of different pathways are involved during gametogenesis and any disturbance to these pathways may have a derogatory impact on producing a haploid gamete and thus a euploid embryo. Steroidogenesis pathway plays a crucial role in gametogenesis.

View Article and Find Full Text PDF

Background: Increasingly, there are calls for educational equity to explicitly include LGBTQ+ students, including the creation of lesbian, gay, bisexual, transgender, or queer/questioning (LGBTQ+) clubs, or Genders and Sexualities Alliances (GSAs), which are associated with positive outcomes for LGBTQ+ students and promote a safer school climate for all students. However, less is known about strategies to initiate and sustain GSAs. Chicago Public Schools (CPS) serves as a case study of how to embrace LGBTQ+ equity through an evaluation of its current practices to support GSAs.

View Article and Find Full Text PDF
Article Synopsis
  • Emergency department visits present a key opportunity for delivering prevention services to individuals at high risk of opioid overdose, particularly by assessing their "recovery capital."
  • This study analyzed data from 543 patients enrolled in a randomized controlled trial in Rhode Island, focusing on the relationship between recovery capital (measured by the BARC-10) and subsequent treatment engagement and overdose risk.
  • The results indicated that the majority of patients had low recovery capital (BARC-10 score <47), and there was no significant association found between recovery capital and either 30-day treatment engagement or the risk of non-fatal or fatal overdoses within 18 months.
View Article and Find Full Text PDF

Hundreds of millions of single cells have been analyzed using high-throughput transcriptomic methods. The cumulative knowledge within these datasets provides an exciting opportunity for unlocking insights into health and disease at the level of single cells. Meta-analyses that span diverse datasets building on recent advances in large language models and other machine-learning approaches pose exciting new directions to model and extract insight from single-cell data.

View Article and Find Full Text PDF

Background: Buprenorphine and methadone are US Food and Drug Administration-approved medications for opioid use disorder (MOUD). Although utilization of MOUD was increasing pre-COVID-19, it is not well understood how this trend shifted during and "after" the COVID-19 pandemic in Rhode Island. This analysis will consider the differential utilization of MOUD over time and by key demographic factors.

View Article and Find Full Text PDF

The effect of humidity on the cooperative adsorption of CO2 from the air on amine-appended metal-organic frameworks is studied both experimentally and theoretically. Breakthrough experiments show that, at low relative humidities, there is an anomalous induction effect, where the kinetics at short times are slower than kinetics at long times. The induction effect gradually vanishes as relative humidity is increased, corresponding to an increase in CO2 adsorption rate.

View Article and Find Full Text PDF

This series of FactFinders presents a brief summary of the evidence and outlines recommendations to minimize risks associated with cervical epidural injections. Evidence in support of the following facts is presented. - 1) CILESIs should be performed at C6-C7 or below, with C7-T1 as the preferred access point due to the more generous dorsal epidural space at this level compared to the more cephalad interlaminar segments.

View Article and Find Full Text PDF

Background: Certified peer recovery specialists (CPRS) and licensed clinical social workers (LCSWs) can facilitate substance use disorder (SUD) treatment engagement for emergency department (ED) patients at risk for overdose. Predictors of treatment engagement after such behavioral services are unknown.

Methods: This secondary analysis included Rhode Island ED patients at high risk for opioid overdose participating in a randomized controlled trial comparing the effectiveness of CPRS and LCSWs services (2018-2021).

View Article and Find Full Text PDF
Article Synopsis
  • The research aimed to determine how common different visual imagery abilities—aphantasia, hypophantasia, typical imagery, and hyperphantasia—are in a large multinational group of people.
  • In the first study, 3,049 participants completed a questionnaire, revealing that 1.2% had aphantasia, 3% had hypophantasia, 89.9% had typical imagery ability, and 5.9% had hyperphantasia.
  • A second study combined these results with additional data from previous studies, confirming similar prevalence rates in a larger sample of 9,063 participants, thus providing a comprehensive understanding of visual imagery abilities.
View Article and Find Full Text PDF

Background And Aims: During the COVID-19 pandemic, there was a surge in opioid overdose deaths (OODs) in Massachusetts, USA, particularly among Black and Hispanic/Latinx populations. Despite the increasing racial and ethnic disparities in OODs, there was no compensatory increase in naloxone distributed to these groups. We aimed to evaluate two community-based naloxone expansion strategies, with the objective of identifying approaches that could mitigate mortality and racial and ethnic disparities in OODs.

View Article and Find Full Text PDF

Biologics and vaccines have been successfully developed over the last few decades to treat many diseases. Each of these drugs must be highly purified for clinical use. Monoclonal antibodies (mAbs), the dominant therapeutic modality on the market, can be easily purified using the standard Protein A affinity platform.

View Article and Find Full Text PDF

Recent advances in artificial intelligence (AI) created powerful tools for research, particularly for extracting meaningful insights from extremely large data sets. These developments increase research benefits of big data and risks posed to individual privacy, forcing a re-examination of ethics in research which is of particular importance to the Military Health System. To advance discussion of research ethics in this context, the Forum on Health and National Security: Ethical Use of Big Data for Healthy Communities and a Strong Nation was held in December 2018.

View Article and Find Full Text PDF
Article Synopsis
  • Fatal and nonfatal opioid overdoses have surged, prompting laypersons to administer naloxone and provide support, yet little is known about their experiences with PTSD following these events.
  • A study involving structured interviews and PTSD assessments was conducted with 101 laypersons who responded to opioid overdoses, revealing that over 27% met diagnostic criteria for current PTSD.
  • The findings highlighted a significant link between PTSD and symptoms of depression and anxiety, emphasizing the need for tailored trauma-informed interventions for those involved in overdose responses.
View Article and Find Full Text PDF
Article Synopsis
  • The WHO classified certain strains of bacteria as a Group I carcinogen for gastric cancer in 1994, but only about 3% of infected individuals actually develop the disease, with specific toxins playing a key role in this process.
  • There are two types of infections: carcinogenic (Type I, with various toxin combinations) and non-carcinogenic (Type II, without toxins).
  • A new method using surface-enhanced Raman spectroscopy and deep learning has been developed to quickly and accurately distinguish between these infection types, which could improve screening and prevention efforts for gastric cancer.
View Article and Find Full Text PDF
Article Synopsis
  • Pervasive health inequities necessitate innovative medical education approaches to prepare future physicians for addressing disparities in health outcomes, highlighting the lack of current curricula focusing on health equity skills.* -
  • Vanderbilt University established the Graduate Certificate in Health Equity (CHE) to fill this gap, offering a comprehensive program that spans from the second to the fourth year of medical school, including foundational courses, electives, and real-world immersion experiences with community partners.* -
  • Since its launch, 73 students have enrolled in the CHE, with 38 graduates so far, and the program aims to continually improve its curriculum and evaluate its impact on graduates' ability to address health equity in their careers, potentially serving as a model for other
View Article and Find Full Text PDF

Background: Over 107,000 people died in the United States (U.S.) from drug overdose in 2022, with over one million overdose deaths since 1999.

View Article and Find Full Text PDF
Article Synopsis
  • Illicitly manufactured fentanyl is a major cause of overdose deaths in the US, and fentanyl test strips (FTS) can help people who use drugs (PWUD) avoid fatal exposure to fentanyl.
  • A study in Rhode Island evaluated factors influencing FTS use among PWUD to identify groups that may not be using these tools effectively.
  • Results showed that while over 73% of participants had heard of FTS, only half reported ever using them, indicating a need for targeted outreach to enhance FTS utilization among certain sub-groups.
View Article and Find Full Text PDF

Introduction: Depressive symptoms are linked with pain, anxiety, and substance use. Research estimating whether a reduction in depressive symptoms is linked to subsequent reductions in pain and anxiety symptoms and substance use is limited.

Methods: Using data from the Veterans Aging Cohort Study, a multisite observational study of U.

View Article and Find Full Text PDF