Publications by authors named "Lewis N"

Spontaneous neural activity coherently relays information across the brain. Several efforts have been made to understand how spontaneous neural activity evolves at the macro-scale level as measured by resting-state functional magnetic resonance imaging (rsfMRI). Previous studies observe the global patterns and flow of information in rsfMRI using methods such as sliding window or temporal lags.

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Researchers have raised concerns that messages describing racial disparities in social outcomes can reduce or polarize support for public policies to address inequality. We questioned this assumption by testing the impact of carefully crafted messages about child tax credit (CTC) expansion. We conducted two randomized message trials, study 1 using Prolific's nonprobability panel ( = 1,402) and study 2 using SSRS's Opinion Panel, a web-based probability sample of US adults ( = 4,483).

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The Warburg effect, which describes the fermentation of glucose to lactate even in the presence of oxygen, is ubiquitous in proliferative mammalian cells, including cancer cells, but poses challenges for biopharmaceutical production as lactate accumulation inhibits cell growth and protein production. Previous efforts to eliminate lactate production in cells for bioprocessing have failed as lactate dehydrogenase is essential for cell growth. Here, we effectively eliminate lactate production in Chinese hamster ovary and in the human embryonic kidney cell line HEK293 by simultaneous knockout of lactate dehydrogenases and pyruvate dehydrogenase kinases, thereby removing a negative feedback loop that typically inhibits pyruvate conversion to acetyl-CoA.

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Background: Aggressive digital papillary adenocarcinoma (ADPA) is a rare skin adnexal tumor with a predilection for the hand. The presentation, treatment, and outcomes of ADPA remain poorly defined due to the scarcity of reports and low-level evidence of published findings.

Methods: We performed a meta-analysis following Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines with the intent to provide hand surgeons a better understanding of the diagnosis and treatment of the disease.

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Objectives: In this study, buprenorphine was the primary source of maternal opioid exposure at the time of initial prenatal evaluation. Current recommendations advise that level II ultrasounds be performed in patients with substance use disorders. For some patients, distance, transportation, and costs associated with obtaining ultrasounds from a specialist pose significant barriers.

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There have been frequent reports of more than one strain of the nitrogen-fixing symbiont, Frankia, in the same root nodule of plants in the genus Alnus, but quantitative assessments of their relative contributions have not been made to date. Neither has the diversity of other microbes, having potential functional roles in symbiosis, been systematically evaluated. Alnus rubra root nodule microbiota were studied using Illumina short read sequencing and kmer-based read classification.

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The pathobiont Staphylococcus aureus (Sa) induces nonprotective antibody imprints that underlie ineffective staphylococcal vaccination. However, the mechanism by which Sa modifies antibody activity is not clear. Herein, we demonstrate that IL-10 is the decisive factor that abrogates antibody protection in mice.

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Graduate medical education programs must prepare physicians to adapt their care for patients whose health equity and outcomes are being threatened by climate change. This article presents the implementation of a longitudinal climate justice curriculum within a pediatrics residency program. To measure the self-reported changes in attitudes and intentions for change in behavior after implementation of a climate justice curriculum.

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Background/objective: In a subset of participants from the CALERIE Phase 2 study we evaluated the effects of 2y of ~25% Calorie Restriction (CR) diet on IgG N-glycosylation (GlycAge), plasma and complement C3 N-glycome as markers of aging and inflammaging.

Methods: Plasma samples from 26 participants in the CR group who completed the CALERIE2 trial and were deemed adherent to the intervention (~>10 % CR at 12 mo) were obtained from the NIA AgingResearchBiobank. Glycomic investigations using UPLC or LC-MS analyses were conducted on samples from baseline (BL), mid-intervention (12 mo) and post-intervention (24 mo), and changes resulting from the 2y CR intervention were examined.

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Background & Aims: Currently, the main treatment for celiac disease (CD) is the gluten-free diet (GFD). This observational cohort study investigated the impact of CD and 1 year of GFD on gut function and microbiome.

Methods: A total of 36 newly diagnosed patients and 36 healthy volunteers (HVs) were studied at baseline and at 12-month follow-up.

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Article Synopsis
  • - In 2014, the PCV13 vaccine was recommended for adults 65 and older, aiming to reduce invasive pneumococcal disease (IPD), yet cases of serotype 3 lingered despite overall declines in other serotypes.
  • - A study conducted from 2014 to 2020 within Kaiser Permanente Northern California evaluated the effectiveness of PCV13 in preventing IPD in this age group, analyzing over 610,000 participants.
  • - The findings showed that the vaccine was 61.5% effective against PCV13-serotype IPD and 46.3% effective against serotype 3, highlighting the need for ongoing monitoring of vaccine impact on IPD across different serotypes. *
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  • - The HEALing Communities Study (HCS) aimed to reduce opioid overdose deaths in 67 affected communities by implementing health campaigns focused on opioid use disorder (OUD), overdose prevention, and stigma reduction, developed with community input.
  • - Surveys conducted via Facebook/Instagram indicated that participants in HCS communities experienced reduced stigma related to OUD and improved beliefs about the efficacy of naloxone, though recognition of campaign messages was not significantly different from control communities.
  • - The study suggests a connection between recognizing campaign messages and achieving positive outcomes, but it also raises concerns about the effectiveness of traditional evaluation methods for social media health campaigns.
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Background: Pathologic tissue remodeling with scarring and tissue rigidity has been demonstrated in inflammatory, autoimmune, and allergic diseases. Eosinophilic esophagitis (EoE) is an allergic disease that is diagnosed and managed by repeated biopsy procurement, allowing an understanding of tissue fibroblast dysfunction. While EoE-associated tissue remodeling causes clinical dysphagia, food impactions, esophageal rigidity, and strictures, molecular mechanisms driving these complications remain under investigation.

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Background: Patients with cardiogenic shock have a 25% to 50% mortality rate despite the introduction of mechanical circulatory devices and coordinated medical treatment. The use of shock teams has improved outcomes for these patients.

Local Problem: A cardiovascular hospital with a multidisciplinary shock team had inconsistency and delays in recognition and diagnosis of patients with cardiogenic shock.

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Background: Driving under the influence of cannabis (DUIC) poses a significant public health threat. This study explores DUIC through a multifaceted lens, examining correlates of various wait times between cannabis use and driving, subjective perceptions of impairment, and differences between medical and non-medical cannabis users.

Method: Cross-sectional data from 979 cannabis users in Israel were collected through an online survey.

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Background: clinical guidelines recommend initiation of antiviral therapy as soon as possible for patients hospitalized with confirmed or suspected influenza.

Methods: A multicenter US observational sentinel surveillance network prospectively enrolled adults (aged ≥18 years) hospitalized with laboratory-confirmed influenza at 24 hospitals during October 1, 2022-July 21, 2023. A multivariable proportional odds model was used to compare peak pulmonary disease severity (no oxygen support, standard supplemental oxygen, high-flow oxygen/non-invasive ventilation, invasive mechanical ventilation, or death) after the day of hospital admission among patients starting oseltamivir treatment on the day of admission (early) versus those who did not (late or not treated), adjusting for baseline (admission day) severity, age, sex, site, and vaccination status.

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  • The paper discusses the California Black Infant Health Program, which aims to enhance maternal and infant health for Black mothers through group and individual support.
  • It analyzes participation and service delivery data from the program's first three years (2015-2018), showing that a significant number of participants benefitted from various services.
  • Findings suggest participants reported high satisfaction and effectiveness of the program, indicating its foundation in addressing health disparities rooted in systemic racism and its potential for successful implementation.
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Background: The global movement of people in the context of strict immigration laws and policies places significant numbers of people in insecure migration status worldwide. Insecure status leaves people without recourse to legal, governmental or social protection from violence and abuse. This review synthesized qualitative studies that reported how migrants associated physical and physically enforced sexual violence they experienced with their insecure migration status.

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Article Synopsis
  • * It forms a symbiotic relationship with actinobacterium, aiding in nitrogen fixation, which contributes to its desirable qualities.
  • * Research focused on analyzing red alder’s plant phenol metabolites through integrated transcriptome and metabolome studies to comprehend its biochemical pathways and enhance understanding of its medicinal and material benefits.
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  • - Monoclonal antibodies (mAbs) produced in Chinese Hamster Ovary (CHO) cells are crucial in treating diseases, but optimizing their production while maintaining high quality is a major challenge
  • - Improving cell culture media, through methods like media blending and statistical designs, is essential for enhancing cell growth, productivity, and quality of mAbs
  • - This review discusses recent advancements in media optimization using systems biology (SB) and machine learning (ML), and suggests that combining these approaches could lead to significant improvements in mAb production efficiency and scalability
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Chinese hamster ovary (CHO) cells, which are widely used for therapeutic protein production, have been genetically manipulated to enhance productivity. Nearly half of the genes in CHO cells are silenced, which are promising targets for CHO cell engineering. To identify novel gene targets among the silenced genes that can enhance productivity, we established a genome-wide clustered regularly interspaced short palindromic repeats activation (CRISPRa) screening platform for bispecific antibody (bsAb)-producing CHO (CHO-bsAb) cells with 110,979 guide RNAs (gRNAs) targeting 13,812 silenced genes using a virus-free recombinase-mediated cassette exchange-based gRNA integration method.

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Introduction: The degree of conversion of dentin bonding agents contributes to the success of final restorations in adhesive dentistry. It is clinically relevant, as it is directly related to the overall bond strength that maintains these restorations in place and prevents marginal deterioration. However, Matrix metalloproteinases (MMPs) present within the dentin substrate have been known to have a deleterious effect on the bond stability, due to their collagenolytic activity.

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Background: Prior overdose incident is a predictor of future non-fatal and fatal overdoses. Therefore, the period immediately following a non-fatal overdose is critical for engaging with survivors; however, they often do not access or receive services immediately after experiencing an overdose. To efficiently reach this high-risk population and provide survivors with services, novel interventions including post-overdose outreach programs have been developed.

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Background: In test-negative studies of vaccine effectiveness (VE), including patients with co-circulating, vaccine-preventable, respiratory pathogens in the control group for the pathogen of interest can introduce a downward bias on VE estimates.

Methods: A multicenter sentinel surveillance network in the US prospectively enrolled adults hospitalized with acute respiratory illness from September 1, 2022-March 31, 2023. We evaluated bias in estimates of VE against influenza-associated and COVID-19-associated hospitalization based on: inclusion vs exclusion of patients with a co-circulating virus among VE controls; observance of VE against the co-circulating virus (rather than the virus of interest), unadjusted and adjusted for vaccination against the virus of interest; and observance of influenza or COVID-19 against a sham outcome of respiratory syncytial virus (RSV).

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