Publications by authors named "Robert Schwartz"

Background And Aims: Endoscopic sleeve gastroplasty (ESG) is a minimally invasive bariatric procedure that the gastric cavity to facilitate weight loss. We aimed to evaluate the long-term effects of ESG as a monotherapy on obesity-related comorbidities over five years.

Methods: This prospective study analyzed data from 404 consecutive patients (45±11.

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This review outlines some of the many approaches taken over a decade or more to repair damaged hearts. We showcase the recent breakthroughs in organ regeneration elicited by reprogramming factors OCT3/4, SOX2, KLF4, and C-MYC (OKSM). Transient OKSM transgene expression rejuvenated senescent organs in mice.

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Background: This paper presents the culmination of a multi-year research project aimed at creating a comprehensive food literacy framework and corresponding measure. Specifically, this paper documents the development and validation of a food literacy measure for young people facing social inequities.

Objectives: This study aimed to: 1) identify items to measure 12 attributes of food literacy 2) test the measure with the identified target groups, considering attribute, face, and content validity, inter-rater reliability and test-retest reliability; and 3) refine the measure.

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  • * Epilepsy occurs in about 4%-7% of NF1 patients, with limited research exploring its connections to NF1 demographics and health outcomes.
  • * A study analyzing 4,635 NF1 patients found that those with epilepsy were primarily White males from lower-income backgrounds and identified several health issues that increase the likelihood of epilepsy in NF1 patients, leading to shorter hospital stays and fewer procedures.
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Experimental confirmation of a theoretical prediction of a non-linear broadening of the spin packets of nitroxide free radicals due to Heisenberg spin exchange at low concentrations, C, is presented. A recent demonstration that spectra with resolved proton hyperfine structure may be analyzed efficiently and accurately was utilized to confirm the theory. As C→0, a plot of the spin-packet line width (SPW) curves downward due to the presence of proton hyperfine couplings that increase the number of distinguishable quantum spin states.

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Background: We assess adverse events (AEs) following medication initiation for adolescents and young adults with opioid use disorder (OUD).

Methods: This is a secondary analysis of a clinical trial of long-acting injectable naltrexone (LAI-naltrexone) among youth with OUD aged 15 to 21 years. Participants were recruited from residential treatment and placed into 1 of 3 treatment groups based on medication receipt at time of discharge (no medication, sublingual buprenorphine-naloxone [buprenorphine], or LAI-naltrexone).

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  • Most melanomas are associated with UV exposure and genetic mutations, but acral lentiginous melanoma (ALM) and metastatic melanoma show different patterns, leading researchers to study the impact of MUC16 and TTN mutations on prognosis.
  • Analysis of data from 2447 melanoma patients revealed that TTN mutations linked with worse prognoses, particularly in cutaneous melanoma (CM), while ALM patients with both mutations fared better than those without them.
  • The study suggests that TTN mutations could serve as a marker for poor prognosis in melanoma, and having both MUC16 and TTN mutations might confer a protective effect, indicating the need for tailored genetic profiling in treatment strategies.
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  • - The study investigates immune-mediated damage in the pancreas during COVID-19, revealing a buildup of harmful proinflammatory macrophages in human autopsy samples.
  • - Researchers employed advanced techniques, including single-cell RNA sequencing and human pluripotent stem cell-derived organoids, to study how these macrophages trigger β cell pyroptosis in response to SARS-CoV-2 and coxsackievirus B4.
  • - The findings identified a specific interaction (TNFSF12-TNFRSF12A) that mediates this damage, positioning the derived vascularized macrophage-islet organoids as crucial tools for further research on immune responses in viral infections.
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There is a paucity of human models to study immune-mediated host damage. Here, we utilized the GeoMx spatial multi-omics platform to analyze immune cell changes in COVID-19 pancreatic autopsy samples, revealing an accumulation of proinflammatory macrophages. Single cell RNA-seq analysis of human islets exposed to SARS-CoV-2 or Coxsackievirus B4 (CVB4) viruses identified activation of proinflammatory macrophages and β cell pyroptosis.

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  • - Acne fulminans (AF) is a severe form of acne mainly affecting adolescent males, marked by sudden onset with severe, ulcerating lesions along with fever and joint pain.
  • - A case study on a 14-year-old patient emphasized the difficulties in diagnosing and treating AF, showcasing the need for prompt consultation with dermatologists.
  • - Successful treatment involved systemic retinoids and corticosteroids, highlighting the importance of collaboration among healthcare specialists for effective management of this rare condition.
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Background: Youth engagement in research, wherein youth are involved in the research beyond mere participation as human subjects, is growing and becoming more popular as an approach to research. However, systematic and deliberate theory-building has been limited. We conducted a systematic review to identify and synthesize theories, models and frameworks that have been applied in the engagement of youth in health research, including mental health.

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Objectives: This paper outlines the experience developing Addiction Medicine Practice-Based Research Network (AMNet), which promotes the adoption of patient-reported outcome measures (PROMs) and measurement-based care in outpatient addiction treatment practices and creates a platform for quality improvement and research.

Methods: From August 2019 to July 2023, the AMNet team selected patient-reported outcome measures for implementation in the American Psychiatric Association's clinical data registry (PsychPRO), recruited addiction medicine providers, and collected PROMs data.

Results: AMNet selected 12 PROMs for implementation in PsychPRO.

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Background: Metabolic dysfunction-associated steatotic liver disease (MASLD), formerly referred to as nonalcoholic fatty liver disease, impacts 30% of the global population. This educational pilot focused on the role primary care providers may play in the delivery of guidelines-based metabolic dysfunction-associated steatohepatitis (MASH) care.

Objective: Accelerate the application of guidelines-based MASH care pathways to clinical workflows.

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Modification of RNA with N-methyladenosine (mA) has gained attention in recent years as a general mechanism of gene regulation. In the liver, mA, along with its associated machinery, has been studied as a potential biomarker of disease and cancer, with impacts on metabolism, cell cycle regulation, and pro-cancer state signaling. However these observational data have yet to be causally examined For example, neither perturbation of the key mA writers and , nor the mA readers and have been thoroughly mechanistically characterized as they have been .

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Plasma cell mucositis (PCM) is an unusual disorder most evident in the accessible mucosa and usually reported in the upper aerodigestive tract, although it is named according to its specific anatomical site of involvement such as plasma cell cheilitis, plasma cell gingivitis, plasma cell vulvitis, and Zoon's balanitis. PCM reflects a dense polyclonal rather than a monoclonal plasma cell proliferation of unclear and unknown etiology. This perplexing disorder tends to be treated by avoiding possible triggers and intralesional and/or systemic steroids.

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Metastasis occurs frequently after resection of pancreatic cancer (PaC). In this study, we hypothesized that multi-parametric analysis of pre-metastatic liver biopsies would classify patients according to their metastatic risk, timing and organ site. Liver biopsies obtained during pancreatectomy from 49 patients with localized PaC and 19 control patients with non-cancerous pancreatic lesions were analyzed, combining metabolomic, tissue and single-cell transcriptomics and multiplex imaging approaches.

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Chronic hepatitis B virus (HBV) infection is an incurable global health threat responsible for causing liver disease and hepatocellular carcinoma. During the genesis of infection, HBV establishes an independent minichromosome consisting of the viral covalently closed circular DNA (cccDNA) genome and host histones. The viral X gene must be expressed immediately upon infection to induce degradation of the host silencing factor, Smc5/6.

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