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Staphylococcal scalded skin syndrome: a pediatric dermatology emergency

1 day 3 hours ago
Staphylococcal scalded skin syndrome (SSSS) is a rare, toxin-mediated skin disorder of childhood, caused by the exfoliative toxins ETA and ETB released by Staphylococcus aureus. We report on a 4-year-old boy who presented with a 5-day history of painful, progressive blistering of the face, trunk and anogenital region. Clinical examination revealed widespread erythema with coarse lamellar desquamation, flaccid blisters and a positive Nikolsky sign; the mucous membranes were spared, an important...
Mohammed Mitwalli

Aneuploidy selects for the acquisition of driver genes in breast cancer

2 days 3 hours ago
Chromosome instability is highly prevalent in cancer and drives large-scale chromosomal imbalances, known as aneuploidies^(1-4). How aneuploidy contributes to tumorigenesis remains difficult to study due to the vast numbers of genes affected. Here we established a CRISPR knockout- and activation-linked assay (CRISPR-KOALA), enabling high-throughput bidirectional genetic screens in immunocompetent mouse models of cancer. We developed a compendium of the ten most frequent human...
Khalid N Al-Zahrani

Dysregulation of Human ClpP Using Small Molecules with Piperazine-Based Scaffold for Diffuse Intrinsic Pontine Glioma Therapy Validated by Patient-Derived Tumor Organoids

2 days 3 hours ago
Diffuse intrinsic pontine glioma (DIPG) is a dismal pediatric brainstem tumor with a median survival of approximately 12 months and no curative treatments. ONC201, the most clinically characterized small-molecule, selectively activates human caseinolytic protease P (hClpP). Guided by X-ray structure of the hClpP:ONC201 complex, piperazine-based derivatives were designed and identified compound 26 (DA29) as a lead. Structural studies confirmed its binding to the enzyme hydrophobic allosteric...
Morena Miciaccia

Integrating diversity, equity, and inclusion in generative AI applications for healthcare education: a scoping review

4 days 3 hours ago
CONCLUSION: By identifying these gaps, this review offers a foundation for developing frameworks that support systematic DEI integration across the GenAI lifecycle, from innovation development and implementation through to evaluation, and informs future research directions by calling for multi-perspective collaboration and institutional accountability in how GenAI is monitored and evaluated. This scoping review represents an important first step upon which future efforts can build to advance the...
Hwayeon Danielle Shin

A joint model for a longitudinal outcome and a progressive multistate model under a mixed observation scheme

1 week ago
Joint models for longitudinal and event-time data can be used to understand the co-development of multiple correlated non-fatal outcomes, such as those encountered when studying diabetic microvascular complications. However, such models were not developed for event-times characterized by a multistate process where the entry time into certain states is interval-censored, which is an important feature of interval cohort study designs. Our aim was to develop a joint model for this setting....
Leif Erik Lovblom

Balanced mediated pathway detection in genomic data

1 week 1 day ago
Researchers are increasingly interested in identifying different parts of the genome which work together to influence a phenotypic trait. A major objective in bioinformatics involves finding groups of variables determined from omics technologies such as DNA methylation sites, transcriptome profiling, etc. Given one set of variables, one could determine how variables within work together to influence an outcome. These groups of variables are called functional modules and previous work has...
Joseph Boccardo

Favorable tolerability of asciminib <em>versus</em> ATP-competitive tyrosine kinase inhibitors in the ASC4FIRST study of newly diagnosed patients with chronic-phase chronic myeloid leukemia

1 week 1 day ago
Many patients with chronic myeloid leukemia (CML) treated with adenosine triphosphate (ATP)-competitive tyrosine kinase inhibitors (TKIs) experience persistent adverse events (AEs) that negatively impact daily living and the ability to remain on treatment. Asciminib, an allosteric inhibitor of BCR::ABL1, was designed to enhance efficacy and reduce off-target effects vs ATPcompetitive TKIs. The phase 3 randomized ASC4FIRST trial established the overall favorable safety profile of asciminib in...
Ghayas C Issa

Drought and salinity stress remodel Asian rice (Oryza sativa) leaf development through cell-type-specific regulatory programs

1 week 1 day ago
Osmotic stressors impair tissue expansion and slow crop development, which can ultimately reduce yield. The mechanisms through which dividing and differentiating cells perceive, integrate, and respond to stress are not well understood. To explore this knowledge gap, we assessed Asian rice (Oryza sativa) seedling responses to drought and salinity stress by performing single-nucleus transcriptome analyses on developing leaves and by assaying ion distribution using ICP-MS and CoroNa Green staining....
Sean M Robertson

FATP2-mediated lipid metabolism enhances chimeric antigen receptor T-cell therapy resistance in B-cell acute lymphoblastic leukemia

1 week 2 days ago
Relapsed/refractory B-cell acute lymphoblastic leukemia (B-ALL) remains a leading cause of cancer-related death in children and young adults. While CD19-directed chimeric antigen receptor T cell (CAR-T) therapy offers promise, high rates of long-term failure underscore the need to understand resistance mechanisms. Our studies found p53 inactivation promotes CAR-T resistance in human pre-B-ALL cell lines. Through genome-wide CRISPR/Cas9 screening of CAR-sensitive TP53-wildtype and CAR-resistant...
Clarissa Garcia

Improving GPP and SIF Simulation With a Mechanistic Photosynthesis Model Integrated Into the BEPS Framework

1 week 2 days ago
Accurate representation of plant photosynthesis in terrestrial biosphere models (TBMs) is critical for reliable carbon-cycle simulations. Most TBMs employ the Farquhar-von Caemmerer-Berry (FvCB) model, which uses an empirical representation of electron transport that limits the simulation of gross primary productivity (GPP) and solar-induced chlorophyll fluorescence (SIF) under variable conditions. Here, we present BEPS-CB6F, an improved model that incorporates the mechanistic cytochrome b(6)f...
Yue Liu

Towards the construction of a virtual yeast

1 week 2 days ago
To advance the computational simulation of cellular life, we propose a virtual yeast, an artificial intelligence (AI)-driven agent that models eukaryotic cellular behaviours by integrating multimodal biological data, mechanistic reasoning and active experimentation using Saccharomyces cerevisiae as a genetically tractable and data-rich model system. Cellular complexity is decomposed into eight function-centred modules, spanning genetic, metabolic and structural systems, each realized as a...
Liujia Qian

Auto-segmentation of organs-of-interest clinical acceptability &amp; reproducibility framework in head and neck cancer

1 week 3 days ago
CONCLUSIONS: The framework facilitates benchmarking and expert assessment of AI-driven auto-segmentation tools, addressing the need for transparency and reproducibility in this domain. Through its emphasis on clinical acceptability, our framework fosters the integration of AI models into clinical environments, specifically within radiation therapy.
Joseph Marsilla

A tailored in vivo CRISPR screen identifies BAP1 as a potent tumor suppressor of sarcoma

1 week 3 days ago
Undifferentiated pleomorphic sarcoma (UPS) is one of the most common adult soft tissue sarcomas (STS), yet therapeutic progress remains limited due to the absence of recurrent oncogenic driver mutations. To identify tumor suppressors contributing to UPS pathogenesis, we performed a customized in vivo CRISPR/Cas9 screen in mice. This approach identified BRCA1-associated protein 1 (BAP1) as a potent tumor suppressor in STS. Integrative analyses using RNA sequencing, multiplex immunohistochemistry,...
Jianguo Huang

Advancing Family Medicine Through Dyadic Electronic Medical Record Linkage in Dementia Care

1 week 3 days ago
Family physicians are well-positioned to support both persons living with dementia (PLWD) and their caregivers. However, current electronic medical record (EMR) systems do not capture the relational and interdependent nature of dementia care. Dyadic data, linking the records of persons living with dementia (PLWD) and their caregivers, could support more integrated, proactive, and personalized care. While there is growing interest in leveraging EMRs for this purpose, few systems enable routine...
Annie Robitaille

Structure and mechanism of inhibition of lysine demethylase 2A (KDM2A) by compound 183c

1 week 6 days ago
Lysine demethylase 2A (KDM2A) is a key epigenetic regulator and promising target for inhibition since its loss is selectively lethal in cancers reliant on Alternative Lengthening of Telomeres (ALT). Here we investigated the mechanism of compound 183c, a potent KDM2A inhibitor described in the patent literature. Biophysical studies showed that 183c requires the co-factor 2-oxoglutarate (2OG) for binding. A 2.2 Å crystal structure of the KDM2A-183c-2OG ternary complex explained the selectivity of...
Pavel Mader