Johns Hopkins University

Circulating lipids are associated with PTSD severity and predict symptomatic PTSD in a cohort of veterans and service members

Abstract Post-traumatic stress disorder (PTSD) is characterized by chronic stress, alterations in mood, and avoidance after a traumatic event has occurred. While recovery can occur, many PTSD patients suffer life-long impairments. In combat veterans, high rates of PTSD contribute...

Prediagnostic circulating 25-hydroxyvitamin D and prostate cancer-specific survival: a collaborative pooled analysis of 13 prospective studies

Abstract Background Previous research suggests higher risk of prostate cancer diagnosis in men with high vitamin D serology, but there are limited data related to prostate cancer survival. In this study, we examine the associations between prediagnostic circulating levels of 25-h...

Metabolomic profiling reveals distinct and shared biology in COPD and IPF

Chronic Obstructive Pulmonary disease (COPD) and Idiopathic Pulmonary Fibrosis (IPF) are chronic pulmonary disorders with distinct pathologies but shared risk factors. Metabolomics may provide insights into mechanisms. To identify metabolites associated with COPD and IPF, and to...

The future of high-dose, high-intensity neurorehabilitation: Consensus-based core recommendations from the fourth Stroke Recovery and Rehabilitation Roundtable

Objective: Convergent evidence indicates that high-dose, high-intensity rehabilitation (HDHI) improves outcomes beyond usual care after stroke, yet implementation remains limited. While questions of optimal dose, timing, and delivery format continue to be refined, the biological...

Why food stays contaminated: a COM-B framework analysis of child feeding practices in Dhaka’s informal settlements

Abstract Background Foodborne diseases are the major public health concerns in low- and middle-income countries, particularly during the complementary feeding period. Children become increasingly exposed to environmental pathogens at this age. Food hygiene during this period is c...

2-arm-PEG-OligocationsTransiently Shield theLiver Sinusoids to Mitigate Off-Target Hepatic Expression of mRNALipid Nanoparticles

ABSTRACT Ionizable lipid nanoparticles (iLNPs) are powerful platforms for mRNA-based vaccines and immunotherapies; however, their intrinsic liver tropism compromises both safety and efficacy. Off-target hepatic protein expression from delivered mRNA raises safety concerns, and he...

A Hybrid Transfer Learning Approach for Ambient PM2.5 Exposure Modeling in LMIC Contexts: A Case Study from Lima, Peru

Abstract Exposure to fine particulate matter (PM2.5) contributes to millions of premature deaths annually worldwide. While epidemiological studies increasingly rely on geospatial technologies, such as satellite remote sensing, low-cost sensors, and chemical transport models, to q...

Examining Practice and Payment Gaps in Otolaryngology: Evidence from US Medicare Data

Abstract Objective To assess longitudinal differences in Medicare reimbursement, billing patterns, and service composition among US otolaryngologists. Study Design Retrospective cohort study. Setting Centers for Medicare & Medicaid Services (CMS) Medicare fee‐for‐service database...

Characterizing the impact of incorporating spatially aggregated human mobility data into infectious disease models

Abstract Models of infectious disease dynamics should align the spatial scale of mobility data to the scale of travel relevant to infer disease introduction events and subsequent local transmission. Despite this, the biases of spatially aggregating mobility data, which are more c...

Modulation of neuronal excitability and plasticity by BHLHE41 conveys lithium non-responsiveness

Abstract Many bipolar disorder (BD) patients are non-responsive to lithium. The mechanisms underlying lithium (non-)responsiveness are largely unknown. By using gene-set enrichment analysis methods, we found that core clock gene-sets are significantly associated with lithium resp...

SPINK1-COL18A1 crosstalk shapes epigenome and drives cancer stemness in pancreatic ductal adenocarcinoma

Pancreatic ductal adenocarcinoma (PDAC) is a devastating cancer with an increasing incidence and extremely dismal prognosis. Discovery and mechanistic understanding of the genetic and epigenetic drivers of PDAC is therefore of critical importance. Here, we uncover serine protease...

Sulforaphane Decreases the Burden of AKT1-Expressing Pre-Neoplastic Cells in a Zebrafish Model of Glioblastoma Initiation

Background: Glioblastoma is a primary aggressive brain tumor, with an average survival rate of ~14.6 months. The low therapeutic benefit of current treatments is in part due to glioblastoma-initiating cells hijacking microglia/macrophages to support tumor growth, prompting the de...

Effectiveness of sexual health interventions in reducing risky sexual behaviors among people living with HIV: a network meta-analysis and systematic review

Abstract Objectives To assess and rank the effectiveness of different sexual health interventions designed to address risky sexual behaviors in PLWH. Methods We systematically searched studies published between Jan. 2010 and Dec. 2024. Randomized controlled trails (RCTs) were inc...

A Review ofAmmonia (NH3) Adsorption inPorous Solids

Abstract Ammonia (NH3) plays a crucial role in the agricultural sector as a fertilizer and is a dense hydrogen carrier that offers a potential renewable and carbon-free energy source. These significant advantages necessitate the development of efficient NH3 synthesis and separati...

Management Patterns and Outcomes of Vestibular Schwannoma in Older Adults: Assessment of the SEER Database

OBJECTIVE: Vestibular schwannoma (VS) is a benign intracranial tumor that is increasingly diagnosed in older adults. The relative contributions of tumor burden and surgical management to overall survival in elderly and very elderly patients remain incompletely characterized at a...

Insulin-Regulated Actin Dynamics is Disrupted in a Human Keratinocyte Model of Hailey Hailey Disease

Abstract Hailey Hailey Disease (HHD) is an autosomal dominant cutaneous disorder caused by mutations in ATP2C1 , the gene encoding the Golgi/secretory pathway Ca 2+ -ATPase SPCA1. Characterized by suprabasal acantholysis and intertriginous blistering of the skin, HHD treatment fo...

Characterizing intra- and intertumor heterogeneity in ovarian high-grade serous carcinoma subtypes using single-cell and spatial transcriptomics

Ovarian high-grade serous carcinoma (HGSC) is an aggressive ovarian cancer with a heterogeneous tumor microenvironment (TME). Advances in single-cell RNA sequencing (scRNA-seq) and spatially-resolved transcriptomics have enabled the study of complex TME. This study explores conne...

A Head-to-Head Comparison of Three Literature Algorithms for Physical Activity Endpoints from a Wrist Accelerometer in Free-Living Conditions

Wrist accelerometers are widely used in clinical trials for continuous assessment of participants’ day-to-day physical activity and function, through derivation of metrics such as time spent in sedentary, non-sedentary, light, and moderate-to-vigorous physical activity (MVPA). Mu...

Functional Activity of TDP-43: A Direct Biomarker for ALS

TDP-43 dysfunction is a defining feature of amyotrophic lateral sclerosis (ALS), yet no biofluid biomarker directly measures its functional activity. We developed a serum-based homogeneous time-resolved FRET (hTR-FRET) assay that quantifies TDP-43 RNA binding activity using synth...

Pharmacokinetic and pharmacodynamic sub-study of trans-arterial vs. intravenous gemcitabine in the TIGeR-PaC phase 3 clinical trial

Abstract Purpose Localized intra-arterial delivery of gemcitabine (IAG) may provide advantages in terms of increased tissue concentration and decreased systemic dosing. We hypothesized IAG may result in decreased systemic gemcitabine concentration and associated side effects due...