Digital Commons Network^™

Physical Activity And Molecular Subtypes Of Colorectal Cancer: A Pooled Observational Analysis And Mendelian Randomization Study, Christos V Chalitsios, Yin Cao, Et Al.

2020-Current year OA Pubs

BACKGROUND: Physical activity is associated with lower colorectal cancer (CRC) risk, but its association with molecular subtypes defined by genetic and epigenetic alterations of the disease is unclear. Such information may enhance the understanding of the mechanisms related to the benefits of physical activity.

METHODS: Pooled observational (cases: n = 5386; controls: n = 6798; studies n = 5) and genome-wide association data (cases: n = 8178; controls: n = 10 472; studies n = 5) were used. We used multivariable logistic regression models and Mendelian randomization to assess the association between physical activity and the risk of CRC subtypes …

Hiv Pre-Exposure Prophylaxis Does Not Increase Gonorrhea And Chlamydia Incidence In Young Black And Hispanic Men Who Have Sex With Men: An Observational Cohort Study, Octavio C Mesner, Rishabh Jain, Aditi Ramakrishnan, Derrick D Matthews, Jeremy T Goldbach

2020-Current year OA Pubs

BACKGROUND: HIV pre-exposure prophylaxis (PrEP) use has been linked with increases in sexually transmitted infection (STI) incidence. Despite efforts to expand PrEP uptake among young Black and Hispanic men who have sex with men (YBHMSM), little research has been done to understand the impact of PrEP on STI incidence within these communities. We examine the effect of PrEP use on gonorrhea and chlamydia (NG/CT) incidence, condom use, and external STI testing (ie, outside of study visits).

METHODS: In a longitudinal cohort of HIV-negative YBHMSM (ages 16-24 years), we modeled the effect of PrEP use on study-external STI testing and number …

Diagnostic Efficacy And Clinical Impact Of Image-Guided Core Needle Biopsy Of Suspected Adult Nonvertebral Osteomyelitis, Winston L Winkler, Ige A George, Sumanth Gandra, Jonathan C Baker, Anderanik Tomasian, Benjamin Northrup, Theodore L Vander Velde, Travis J Hillen, Chongliang Luo, Resten Imaoka, Gino M Dettorre, Jack W Jennings

2020-Current year OA Pubs

OBJECTIVES: The diagnostic yield and clinical impact of image-guided core needle biopsy (ICNB) of suspected nonvertebral osteomyelitis in adults is heterogenous in published studies because of small sample size, indicating the need for large cohort studies.

METHODS: A retrospective analysis of ICNBs was performed from 2010 to 2021 for patients with suspected nonvertebral osteomyelitis. For each biopsy, a series of factors were analyzed, as well as if histopathology was diagnostic of osteomyelitis and if microbiological cultures were positive. Additionally, it was recorded in what way biopsy influenced clinical management regarding antimicrobial treatment. Multivariate statistical analysis was performed to evaluate the …

Vaccine Effectiveness Against Influenza A(H1n1), A(H3n2), And B-Associated Hospitalizations, United States, 1 September 2023 To 31 May 2024, Nathaniel M Lewis, Jennie H Kwon, Et Al.

2020-Current year OA Pubs

BACKGROUND: The 2023-2024 influenza season included sustained elevated activity from December 2023 to February 2024 and continued activity through May 2024. Influenza A(H1N1), A(H3N2), and B viruses circulated during the season.

METHODS: During 1 September 2023 to 31 May 2024, a multistate sentinel surveillance network of 24 medical centers in 20 US states enrolled adults aged ≥18 years hospitalized with acute respiratory illness. Consistent with a test-negative design, cases tested positive for influenza viruses by molecular or antigen test, and controls tested negative for influenza viruses and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Vaccine effectiveness (VE) against influenza-associated hospitalization …

Optimal Antibiotic Use In The Intensive Care Unit, Scott T Micek, M Cristina Vazquez Guillamet, Daniel Reynolds, Sarah Matuszak, Lauren Kolodziej, Marin H Kollef

2020-Current year OA Pubs

BACKGROUND: Antibiotic resistance has emerged as one of the most important factors influencing the outcomes of patients with life-threatening infections in the ICU. The increasing prevalence of antibiotic-resistant infections globally highlights the importance of this issue for all intensivists.

MAIN BODY: Antibiotic utilization in the ICU should be optimized to ensure that timely appropriate treatment is administered in a way that minimizes the subsequent emergence of antibiotic resistance. Antibiotic strategies have been developed to assist clinicians in achieving this important balance. Familiarity with local ICU pathogens and their antibiotic susceptibilities is at the forefront of optimizing ICU antibiotic practices. Moreover, …

Establishing Priority Pediatric Antimicrobial Stewardship Interventions In The Us: Findings From A Delphi Consensus Study, Harry Obeng, Emmanuel Tetteh, Sara Malone, Matthew Sattler, Monica Abdelnour, Virginia R Mckay, Et Al.

2020-Current year OA Pubs

BACKGROUND/OBJECTIVES: Antimicrobial resistance (AMR) is a major global health threat, with children at higher risk due to developmental differences in drug metabolism, limited treatment options and inappropriate antibiotic use. Pediatric antimicrobial stewardship programs (ASPs) face implementation challenges, often relying on adult-based guidelines and limited pediatric-specific evidence. This study aimed to identify and prioritize the most critical areas for pediatric ASP intervention development through a structured, multi-round Delphi consensus process with experts in antimicrobial stewardship and infectious diseases.

METHOD: A four-round modified Delphi process was conducted to identify and prioritize key pediatric ASP interventions. Experts in antimicrobial stewardship and infectious diseases …

Motivations, Facilitators, And Barriers Of Donation-Based Interventions In Hiv And Sexually Transmitted Infection Research: A Systematic Review, Dorian Ho, Ye Liu, Jamie Conklin, Thomas Fitzpatrick, Jiayu Wang, Suzanne Day, Takhona G Hlatshwako, Rohit Ramaswamy, Ruby Congjiang Wang, Eneyi E Kpokiri, Weiming Tang, Elvin Geng, Joseph D Tucker

2020-Current year OA Pubs

IMPORTANCE: Donation-based prosocial interventions involve someone receiving a free health service and then distributing or donating to support health services for others; examples within the HIV and sexually transmitted infection (STI) literature include secondary distribution of HIV self-tests, secondary syringe exchange, and pay it forward for STI testing. These interventions answer research and policy recommendations to incorporate prosocial behaviors into HIV/STI services.

OBJECTIVE: To describe motivations, facilitators, and barriers of donation-based interventions in HIV and STI research using data from qualitative studies.

EVIDENCE REVIEW: In this systematic review, 5 databases (PubMed, CINAHL, Embase, PsycInfo, and Scopus) and references were searched …

Mapping The Geographic Distribution Of Dimorphic Mycoses Using A Us Commercial Insurance Database, Reid Goodman, Adriana M Rauseo, Samuel L Windham, Julio C Zuniga-Moya, William G Powderly, Andrej Spec, Patrick B Mazi

2020-Current year OA Pubs

BACKGROUND: The dimorphic mycoses (DMs) histoplasmosis, blastomycosis, and coccidioidomycosis are classically thought to be geographically restricted to specific regions of the United States. The current scientific consensus is that these geographic boundaries are expanding, but the extent of this expansion remains uncertain.

METHODS: This study is a retrospective analysis of >21 million (annually) commercially insured individuals within the United States during 2007-2016. Diagnosis of histoplasmosis, coccidioidomycosis, and blastomycosis were identified using

RESULTS: There were 37 513 histoplasmosis, 14 987 coccidioidomycosis, and 2207 blastomycosis diagnoses during 2007-2016 within 387 Metropolitan Statistical Areas. DMs were consistently diagnosed outside their historical hyperendemic regions. …

Leveraging De-Implementation Science To Promote Infection Prevention And Stewardship: A Roadmap And Practical Examples (Part Ii Of Ii), Westyn Branch-Elliman, Jennie H Kwon, Et Al.

2020-Current year OA Pubs

De-implementation of established practices is a common challenge in infection prevention and antimicrobial stewardship and a necessary part of the life cycle of healthcare quality improvement programs. Promoting de-implementation of ineffective antimicrobial use and increasingly of low-value diagnostic testing are cornerstones of stewardship practice. Principles of de-implementation science and the interplay of implementation and de-implementation are discussed in part I of this Society for Healthcare Epidemiology of America White Paper Series.In this second part of the series, we discuss a process for applying principles of de-implementation science in infection prevention and stewardship and then review some real-world examples and case …

Exposure To Household Air Pollution From Biomass Cooking And Severe Pneumonia In Infants, John P Mccracken, Lindsay J Underhill, Et Al.

2020-Current year OA Pubs

IMPORTANCE: Household air pollution from biomass cooking is considered an important risk factor for child pneumonia.

OBJECTIVE: To evaluate the longitudinal association between exposure to particulate matter with a diameter of less than or equal to 2.5 µm (PM2.5) or carbon monoxide (CO) and severe pneumonia in infants.

DESIGN, SETTING, AND PARTICIPANTS: This cohort study included infants (aged ≤12 months) whose mothers participated in a 4-country randomized clinical trial. Conducted from May 2018 to September 2021, the trial tested whether an 18-month liquefied petroleum gas stove and fuel distribution intervention reduced the incidence of severe pneumonia in offspring during infancy …

Health And Climate At Cop29: Advancing Integration And Bridging Research Gaps, Rupa R Patel, Yevheniia Varyvoda, Hiba Baroud, Philip J Landrigan, Aminata Kilungo

2020-Current year OA Pubs

Climate and health science is a rapidly growing, interdisciplinary field and holds importance during intergovernmental climate adaptation and mitigation policy negotiations. The 29th session of the Conference of the Parties (COP) to the United Nations Framework Convention on Climate Change (UNFCCC) convened stakeholders for negotiations and scientific discourse. This viewpoint presents insights gained by the authors' participation at COP29 focused on health and climate. The authors analyze the evolving integration of health into the UNFCCC process, dissect the contributions and the role of the Research and Independent Non‑Governmental Organizations (RINGOs), a constituency to achieve this endeavor, and identify the key …

Gata2 Mutation Is Associated With Immune Dysfunction And Increased Mycobacterium Haemophilum Susceptibility In Immunocompromised Individuals, Ananya Gupta, Shail B. Mehta, Abhimanyu, Bruce A. Rosa, John Martin, Mushtaq Ahmed, Shyamala Thirunavukkarasu, Farheen Fatma, Gaya K. Amarasinghe, Makedonka Mitreva, Thomas C. Bailey, David B. Clifford, Shabaana A. Khader

2020-Current year OA Pubs

Infections with nontuberculous mycobacterium (NTM) are on the rise. Here, we investigated an uncommon NTM infection, by M. haemophilum (Mh, n = 4), from a shared geographic location in the United States. All patients had underlying immunosuppressive conditions or treatments. We identified that all these individuals had a nonsynonymous mutation in GATA2 gene, which was absent in healthy controls (HCs, n = 4) from the same geographic area (Missouri, USA). Whole blood from these individuals had attenuated cytokine responses to Mh stimulation for IL-1β, IL-6, IL-8, MIP-1α and MIP-1β, but not to phytohemagglutinin (PHA) or another NTM, M. abscessus. Impaired …

1,2,4-Triazole-Based First-In-Class Non-Nucleoside Inhibitors Of The Bacterial Enzyme Mray, Tomayo Berida, Tzu-Yu Huang, Stefanie C Weck, Marcel Lutz, Samuel R Mckee, Nathalie Kagerah, Destinee L Manning, Mohamed E Jahan, Sushil Mishra, Jennifer Herrmann, Rolf Müller, Robert J Doerksen, Christina L Stallings, Christian Ducho, Sudeshna Roy

2020-Current year OA Pubs

MraY is an essential bacterial enzyme for peptidoglycan synthesis in cell walls and serves as a promising but unrealized target for developing effective antibacterial drugs. Nature has provided a remarkable array of nucleoside inhibitors of MraY, and researchers have skillfully refined these structures to develop inhibitors that effectively mimic natural products. Yet, both natural products and their synthetic variants often face challenges regarding inadequate

Rural Providers' Attitudes Toward Integrating Harm Reduction Strategies And Prep Prescribing Into Rural Primary Care Settings In The Us. Southeast And Midwest, Phillip L Marotta, Miryam Biaid, Virginia Mckay, Hilary Reno, Lindsey Filiatreau, Kaileigh Backes, Patricia Cavazos-Rehg, Et Al.

2020-Current year OA Pubs

BACKGROUND: People with opioid use disorders (OUD) living in the South and Midwest are under-prescribed pre-exposure prophylaxis (PrEP) despite an increasing number of providers writing PrEP prescriptions in other regions of the United States. Greater research is needed into attitudes toward integrating harm reduction strategies into primary care and PrEP prescribing among prescribers working in rural primary care settings. The objective of this paper was to examine relationships between providers' attitudes toward buprenorphine and methadone, comprehensive harm reduction (e.g., fentanyl test strips) and self-reported PrEP prescribing in the past year.

METHODS: Relationships were examined between attitudes toward buprenorphine and harm …

Intestinal Microbiome Changes In Response To Amino Acid And Micronutrient Supplementation: Secondary Analysis Of The Amaze Trial, Monica N Mweetwa, Kazi Ahsan, John Louis-Auguste, Ellen Besa, Joram M Posma, Nathan Mcnulty, Micheal J Barrat, Jeff Gordon, Paul Kelly

2020-Current year OA Pubs

Microbial dysbiosis has been linked to environmental enteropathy (EE) and alterations in nutrient absorption; however, compositional modifications following exposure to supplementary nutrients are poorly understood. Here, we report the effect of amino acid and micronutrient supplementation on the gut microbiome of adults with EE. In the AMAZE trial, adults with EE were randomized to amino acids (AA) and/or micronutrients (MM) for 16 weeks in a 2 × 2 factorial design against placebo. Endoscopy was performed before and after intervention, during which duodenal aspirates were collected as well as fecal samples. 16S rRNA amplicon sequencing was performed on both these samples, …

Handling Hemolytic Blood Samples From High-Risk Clinical Areas: A Call To Action, Alan H B Wu, Jerrold H Levy, W Franklin Peacock, Ramzy Rimawi, Manuel Sanchez Luna, Christopher Farnsworth, Hugo Stiegler, Robert H Christenson

2020-Current year OA Pubs

BACKGROUND: Spectrophotometric testing to detect sample hemolysis is available from central laboratory chemistry analyzers. While the cause and preventative measures are known, hemolysis continues to be a common preanalytical error, especially for specimens collected from the emergency department (ED) and intensive care units (ICUs) where point-of-care analyzers are commonly used for whole blood electrolyte testing. Recently, these analyzers have employed technology to detect hemolysis directly on whole blood samples.

METHODS: Experienced laboratorians and physicians from the clinical laboratory, ED, adult and neonatal ICUs provide a summary of the medical importance of in vitro hemolysis. Causes for in vivo hemolysis are …

Risk Of Cardiovascular Events During Delivery Hospitalization Among Pregnant Patients With Mental Health Conditions, Kavya Parekh, R J Waken, Khavya Avula, Katelin B Nickel, Kathryn J Lindley, Cynthia Rogers, Karen E Joynt Maddox

2020-Current year OA Pubs

BACKGROUND: Cardiovascular disease remains the leading cause of maternal mortality. Mental health disorders are risk factors for cardiovascular disease in nonpregnant populations, but their association with delivery outcomes is unknown.

METHODS: This cross-sectional study used delivery hospitalizations from the 2021 National Inpatient Sample. We used generalized estimating equations to fit quasi-Poisson regression models for cardiovascular severe maternal morbidity and mortality (SMM) events as defined by the Centers for Disease Control and Prevention, and non-SMM cardiovascular conditions or complications as defined by the Alliance for Innovation on Maternal Health. Incidence rate ratios were calculated for depression, anxiety, psychosis, bipolar, obsessive-compulsive disorder, …

Rezafungin Versus Caspofungin For The Treatment Of Candidemia And Invasive Candidiasis: Results From The Double-Blind, Randomized, Phase 3 Restore Trial Including The China Extension Study, George R Thompson, Haihui Huang, Sizhou Feng, Yunsong Yu, Alex Soriano, Oliver A Cornely, Bart Jan Kullberg, Peter G Pappas, Marin Kollef, Jose A Vazquez, Patrick M Honore, Laura Cox, Matteo Bassetti

2020-Current year OA Pubs

BACKGROUND: Rezafungin is approved for use in adults with candidemia and/or invasive candidiasis (IC) based on data from the ReSTORE trial (NCT03667690), which demonstrated noninferior efficacy to caspofungin. For regulatory purposes, an additional cohort of patients from China was recruited to ReSTORE. Here, we compared rezafungin and caspofungin in patients with candidemia and/or IC through analysis of the ReSTORE global data plus the China extension study.

METHODS: Adults with candidemia/IC were randomized (1:1) to receive weekly rezafungin (400/200 mg) or daily caspofungin (70/50 mg) for ≤28 days. Noninferiority was concluded for primary efficacy endpoints if the upper bound of the …

Comparative Outcomes Following Candida Bloodstream Infection In Patients With Left Ventricular Assist Devices, Armaghan-E-Rehman Mansoor, Gayathri Krishnan, Julio C Zuniga-Moya, Benjamin Papadopoulus, Andrej Spec, Ige George

2020-Current year OA Pubs

BACKGROUND: Candida bloodstream infections (BSI) carry a high risk of adverse outcomes. Left ventricular assist devices (LVADs) are increasingly used to manage end-stage heart failure; however, they carry a risk of infection. This study evaluates the impact of LVAD presence on outcomes in patients with

METHODS: A total of 1233 patients with

RESULTS: Patients with

CONCLUSIONS: In patients with

Characterization Of A Mouse Model Of Osteoarticular Infection Using Clinical Isolates Of Staphylococcus Aureus, Philip M Roper, Jessica Beetner, Jennifer L Davis, Christine Shao, Jason Zhang, Linda Cox, Nitin Kumar Pokhrel, James E Cassat, Javier Rangel-Moreno, Gowrishankar Muthukrishnan, Deborah J Veis

2020-Current year OA Pubs

Osteoarticular infection, most commonly due to

Identifying Care Gaps Along The Hiv Treatment Failure Cascade: A Multistate Analysis Of Viral Load Monitoring, Re-Suppression, And Regimen Switches In Zambia, Kombatende Sikombe, Noelle Le Tourneau, Brian Rice, Jake M. Pry, Sandra Simbeza, Laura K. Beres, Anjali Sharma, Njekwa Mukamba, Alison Wringe, James R. Hargreaves, Jacob Mutale, Carolyn Bolton Moore, Izukanji Sikazwe, Elvin Geng, Aaloke Mody

2020-Current year OA Pubs

BACKGROUND: Timely response to treatment failure is critical for improved outcomes and viral re-suppression among people living with HIV, but care gaps along the treatment failure cascade can occur due to delays by both clients (e.g., retention and adherence) and health systems (e.g., fidelity to viral load [VL] monitoring guidelines). We used multistate analysis to identify drivers of implementation gaps in the treatment failure cascade, including time to HIV VL monitoring, re-suppression, and regimen switches, in Zambia.

METHODS AND FINDINGS: We used national electronic HIV health records to identify adults on antiretroviral therapy (ART) for more than 6 months who …

Vaccination With Acinetobacter Baumannii Adhesin Abp2d Provides Protection Against Catheter-Associated Urinary Tract Infection, Morgan R Timm, Kevin O Tamadonfar, Taylor M Nye, Jesús Bazán Villicaña, Jerome S Pinkner, Karen W Dodson, Ali H Ellebedy, Scott J Hultgren

2020-Current year OA Pubs

Catheter-associated urinary tract infections (CAUTIs) contribute greatly to the burden of healthcare-associated infections. Acinetobacter baumannii is a Gram-negative bacterium with high levels of antibiotic resistance that is of increasing concern as a CAUTI pathogen. A. baumannii expresses fibrinogen-binding adhesins (Abp1D and Abp2D) that mediate biofilm formation on catheters, which become coated with fibrinogen upon insertion. Here we develop a protein subunit vaccine against the Abp1D and Abp2D receptor binding domains (RBD) and show that vaccination significantly reduces bacterial titers in a female mouse model of CAUTI. We further demonstrate that immunity to Abp2D

Hsp70 Is A Chaperone For Il-33 Activity In Chronic Airway Disease, Omar A. Osorio, Heather E. Raphael, Colin E. Kluender, Ghandi F. Hassan, Lucy S. Cohen, Deborah F. Steinberg, Ella Katz-Kiriakos, Morgan D. Payne, Ethan M. Luo, Jamie L. Hicks, Derek E. Byers, Jennifer Alexander-Brett

2020-Current year OA Pubs

IL-33 is a key driver of type 2 inflammation and implicated in pathology of chronic obstructive pulmonary disease (COPD) and asthma. However, the mechanism for IL-33 secretion and regulation in the context of chronic airway disease is poorly understood. We previously reported an airway disease-associated isoform IL-33Δ34 that escapes nuclear sequestration and is tonically secreted from epithelial cells. Here, we describe how this IL-33Δ34 isoform interacts with HSP70 within cells and is targeted to secretory organelles through coordinated binding to phosphatidylserine (PS) and delivered to compartments for unconventional protein secretion (CUPS). Once secreted, extracellular HSP70 (eHSP70) in complex with IL-33Δ34 …

Implementation Outcomes Of A Patient Decision-Aid In A Diverse Population With Systemic Lupus Erythematosus In 15 Us Rheumatology Clinics, Jasvinder A Singh, Seth Eisen, Alfred Kim, Et Al.

2020-Current year OA Pubs

OBJECTIVE: The objective of this study was to examine the clinical outcomes during the implementation of a self-administered patient decision-aid (PtDA) for lupus.

METHODS: We provided an effective computerized lupus PtDA in 15 rheumatology outpatient clinics 2019-2024 (including the COVID pandemic). We undertook Organizational Readiness to Implement Change Surveys (ORICs) and Team Learning and Psychological Safety Surveys (TLPSSs) at baseline. The primary study outcome objective measure, percent penetration/reach, was defined as the number of patients who viewed the lupus PtDA at the end of the study, divided by the total number of eligible patients (times 100). We used validated clinical …

Benefit Of Early Oseltamivir Therapy For Adults Hospitalized With Influenza A: An Observational Study, Nathaniel M Lewis, Jennie H Kwon, Et Al.

2020-Current year OA Pubs

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 1 October 2022-21 July 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), …

Dissemination And Implementation Of A Telehealth-Enabled Program For Providing Infectious Disease Expertise In Rural Settings, Robin L P Jump, Jason P Burnham, Et Al.

2020-Current year OA Pubs

BACKGROUND: Telehealth can facilitate improving antibiotic use and related antimicrobial stewardship activities in facilities underserved by infectious diseases (IDs) expertise. We describe implementation of the Department of Veterans Affairs (VA) videoconference antimicrobial stewardship team (VAST) to connect multidisciplinary teams from rural VA medical centers (VAMCs) with geographically distant ID experts.

METHODS: We implemented VASTs at 10 rural VAMCs from September 2021 to February 2024. VASTs consisted of regular meetings between rural VAMCs and an off-site ID expert who met by videoconference to discuss clinical cases, emphasizing recommendations for antibiotic prescribing. The VA Corporate Data Warehouse was used to collect information …

Let's Doff: A Gown Conservation Strategy For Multidrug-Resistant Organism Colonization During The Covid-19 Pandemic And Beyond, Kelsey L Rowe, Josephine Fox, Carole Leone, Lydia J Grimes, Kenneth Whalen, David K Warren, Jonas Marschall

2020-Current year OA Pubs

A COVID-19 pandemic gown conservation strategy for methicillin-resistant

Macrophage-T Cell Interactions Promote Slamf1 Expression For Enhanced Tb Defense, G V R Krishna Prasad, Steven J Grigsby, Gideon A Erkenswick, Cynthia Portal-Celhay, Ekansh Mittal, Guozhe Yang, Samuel M Fallon, Fengyixin Chen, Thais Klevorn, Neharika Jain, Yuanyuan Li, Makedonka Mitreva, Amanda J Martinot, Joel D Ernst, Jennifer A Philips

2020-Current year OA Pubs

CD4+ T cells are crucial for protective immunity to intracellular pathogens. In addition to secreting cytokines, CD4+ T cells promote control of Mycobacterium tuberculosis infection through cognate interactions with macrophages, but the mechanism has been unclear. Here, we show that SLAMF1/CD150 is highly and uniquely induced in macrophages by antigen-specific interactions with CD4+ T cells. In macrophages, SLAMF1 enhances the generation of reactive oxygen species and restricts Mtb replication. Mtb-infection of mice promotes SLAMF1 expression specifically on infected macrophages, not uninfected bystanders. SLAMF1 expression depends on adaptive immunity and also autophagy. Moreover, Slamf1

Unlocking Efficiency In Real-World Collaborative Studies: A Multi-Site International Study With One-Shot Lossless Glmm Algorithm, Jiayi Tong, Chongliang Luo, Et Al.

2020-Current year OA Pubs

The widespread adoption of real-world data has given rise to numerous healthcare-distributed research networks, but multi-site analyses still face administrative burdens and data privacy challenges. In response, we developed a Collaborative One-shot Lossless Algorithm for Generalized Linear Mixed Models (COLA-GLMM), the first-ever algorithm that achieves both lossless and one-shot properties. COLA-GLMM ensures accuracy against the gold standard of pooled data while requiring only summary statistics and completes within a single communication round, eliminating the usual back-and-forth overhead. We further introduced an enhanced version that employs homomorphic encryption to reduce the risks of summary statistics misuse at the coordinating center. The …

Establishment Of A Reverse Genetics System For Studying Human Immune Functions In Mice, Priya Pal, Shuai Gao, Hongbo Gao, Xiwen Qin, Marina Cella, Qiankun Wang, Liang Shan

2020-Current year OA Pubs

Reverse genetics approaches in mice are widely used to understand gene functions and their aberrations in diseases. However, limitations exist in translating findings from animal models to human physiology. Humanized mice provide a powerful bridge to understanding human physiology and mechanisms of disease pathogenesis while maintaining the feasibility of working with small animals. Methods for generating humanized mouse models that allow scientists to probe contributions of particular genes have been rudimentary. Here, we established an efficient method for generating genetically modified human cord blood-derived CD34