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Transcriptomic profiling of a novel gastric implantation model identifies mechanisms and pathways that drive implantation into explanted human peritoneum

2 weeks ago
Epithelial cancers such as stomach and ovarian cancer tend to metastasize to the peritoneum, often leading to intractable disease and poor survival. The mechanisms that enable gastric cancer cells to implant, invade, and survive in the peritoneal niche are poorly understood. We developed a novel human peritoneal explant model using freshly harvested peritoneal tissue samples. GFP-labeled human gastric adenocarcinoma cells (AGS) were co-cultured with the peritoneal samples, and 2% of these cells...
Deanna Ng

Cluster replicability in single-cell and single-nucleus atlases of the mouse brain

2 weeks 1 day ago
Single-cell RNA sequencing has advanced our understanding of cellular heterogeneity. Ensuring the replicability of identified cell clusters across studies is essential for determining their biological robustness. We assess the replicability of cell clusters identified in two large mouse brain atlases, one generated using single-cell RNA sequencing and the other with single nuclei. Both profile over 4 million cells and group them into over 5,000 clusters. Using transcriptome-wide neighbor voting,...
Leon French

Deep brain stimulation of the nucleus accumbens for severe self-injurious behaviour in children: long-term outcomes from a first-in-human pilot trial

2 weeks 1 day ago
Children with severe self-injurious behaviour (SIB) are at risk of permanent injury and lack effective treatment options. Neuromodulation of the nucleus accumbens (NAc), a key node in reward and behavioural regulation circuits, may directly modulate the drivers of SIB. We report long-term outcomes from a first-in-human, single-centre trial of deep brain stimulation (DBS) targeting the NAc in children and adolescents with profound autism and treatment-refractory SIB (NCT03982888). Six...
Karim Mithani

Foundation Model-Guided Synthetic EHR Release: Performance Enhancement with Privacy Preservation

2 weeks 4 days ago
Machine learning on electronic health records (EHR) is constrained by limited data, strict privacy regulations, and distribution shifts across sites and time. Synthetic data offer a potential solution, but existing tabular generators often struggle in the small sample size in EHR regime. We propose MEDPFN, a distribution-aware synthetic EHR generator built on top of the TabPFN tabular foundation model. MEDPFN uses TabPFN as a learned compatibility score over EHR and adds a Mahalanobis...
Rui Zhu

Large Models for Small Tables: Adapting Tabular Foundation Models to EHR Data

2 weeks 4 days ago
Electronic Health Records (EHR) contain abundant structured tabular data, yet developing accurate predictive models on small clinical datasets remains challenging. Foundation models have transformed natural language and imaging tasks by leveraging pretraining on large-scale data, and they are increasingly explored in healthcare as a route toward generalist medical AI. However, this paradigm remains largely unexplored for structured EHR data. In this study, we explore the adaptation of a tabular...
Rui Zhu

The Landscape of Prostate Tumour Methylation

2 weeks 6 days ago
Prostate cancer is characterized by profound clinical and molecular heterogeneity. While its genomic heterogeneity is well-characterized, its epigenomic heterogeneity remains less understood. We therefore created a compendium of 3,001 multi-ancestry prostate methylomes spanning normal tissue through localized disease of all grades to poly-metastatic disease. A subset of 884 samples had multi-omic DNA and/or RNA characterization. We identify four epigenomic subtypes that risk-stratify patients...
Jaron Arbet

Development of a Core Outcome Domain Set for Facial Aging

2 weeks 6 days ago
CONCLUSIONS AND RELEVANCE: The 6 outcome domains identified through a Delphi consensus are recommended for reporting in future facial aging trials to ensure that outcomes that matter most to patients and clinicians are measured and that results are comparable across interventions.
McKenzie A Dirr

Expert Consensus Statement on Acoustic Metrics for Swallowing Dysfunction Screening in Older Adults: A Delphi Study

3 weeks ago
CONCLUSION: The consensus highlights the potential of auditory-perceptual assessment and acoustic metrics to inform screening for swallowing dysfunction in older adults and offers expert insights for clinical investigators who aim to analyze voice, speech, and/or cough sounds as clinically meaningful indicators of laryngeal function to improve early detection and intervention, thereby enhancing patient outcomes.
Adrián Castillo-Allendes

Phytochrome-interacting factors integrate environmental signals to regulate tomato growth and development

3 weeks ago
Plants respond to environmental cues, such as light and temperature, which regulate their growth and development. In the model plant Arabidopsis (Arabidopsis thaliana), PHYTOCHROME-INTERACTING FACTORS (PIFs) are central regulators of both shade-avoidance and thermomorphogenesis. However, their functional roles in crop species are less well known. Here, we generated a tomato (Solanum lycopersicum) mutant lacking all eight known PIF genes (slpifo), to investigate their roles under controlled and...
Srinivas Kunta

Disruption of major Ptchd1 isoforms causes autistic traits in social behavior and communication

3 weeks 1 day ago
PTCHD1 is an X-linked three-exon gene associated with autism spectrum disorder (ASD) and/or intellectual disability (ID). Mice lacking Ptchd1 exon 2 (Ptchd1^(Δexon2)) exhibit hyperactivity and learning impairments, but do not recapitulate ASD-like traits. Through mapping of clinically reported loss-of-function mutations in human patients, we determined that PTCHD1 exon 3 is a high-risk locus. We therefore generated an alternative Ptchd1 knockout mouse model by targeting Ptchd1 exon 3...
Sangyoon Y Ko

SARS-CoV-2 infection in female sex workers from Nairobi, Kenya early in the COVID-19 pandemic: Seroincidence and behavioural associations

3 weeks 1 day ago
While COVID-19 mortality was relatively low in many Sub-Saharan African countries during the first wave of the pandemic, SARS-CoV-2 transmission was extensive. We hypothesized that female sex workers (FSWs) would be at enhanced risk of acquisition of this novel respiratory viral infection, due to intimate contact with multiple sexual partners and solicitation of clients in crowded venues. Here we describe the seroincidence, socio-behavioural associations and clinical outcomes of SARS-CoV-2...
Su D Yang

Tumor-derived cell-free DNA detected in cerebrospinal fluid enables minimally invasive profiling of pediatric brain tumors

3 weeks 1 day ago
BACKGROUNDLiquid biopsy has emerged as a minimally invasive method for tumor diagnosis, monitoring, and therapeutic guidance. For CNS tumors, cerebrospinal fluid (CSF) provides a reliable and accessible source of tumor-derived cell-free DNA (ctDNA).METHODSThis study evaluates the clinical utility of CSF liquid biopsy in a real-world prospective setting. A total of 148 CSF samples from 120 patients underwent molecular analysis using droplet digital PCR (ddPCR) and/or next-generation sequencing to...
Liana Nobre

Machine Learning Based Prediction of Hospital Mortality in Post-Cardiotomy Cardiogenic Shock with Mechanical Support

3 weeks 3 days ago
CONCLUSIONS: Machine learning models demonstrated moderate predictive performance for in-hospital mortality in post-cardiotomy cardiogenic shock patients on extracorporeal life support. The random forest model demonstrated moderate discriminative performance, highlighting the relevance of readily available clinical variables. External validation and calibration analysis are required before clinical implementation. The model is best interpreted as a tool for dynamic risk assessment during ECMO...
Ahmad Mahajna

Extracorporeal photopheresis versus systemic immunosuppression for treatment of immune-related adverse events: clinical outcomes from the prospective two-arm PRIA study

3 weeks 4 days ago
CONCLUSIONS: ECP demonstrated clinical outcomes comparable to IS in sr/sd-irAEs, with significantly lower cumulative corticosteroid exposure and improved QoL. Furthermore, ECP was associated with a favorable safety profile and showed no evidence of compromised antitumor activity. A multicenter trial is planned for further investigation.
Lisa Wein

Technical Success of Fetal Aortic Valvuloplasty in Relation to Center Volumes: A Report From the International Fetal Cardiac Intervention Registry

4 weeks ago
CONCLUSIONS: In this registry cohort, higher-volume centers did not have greater fetal aortic valvuloplasty technical success or fewer complications but did have fewer periprocedural fetal deaths. Fetal gestational age and number of cardiac punctures influenced outcomes, suggesting that unmeasured fetal selection criteria, such as different referral patterns, and technical expertise, indicative of overall center/team experience, may influence fetal survival.
Manon Gijtenbeek