🧬 biology

Correlation Analysis of 21-Gene Recurrence Score with Gene Pathway Expression and Clinicopathological Features in Hormone Receptor-Positive Early-Stage Breast Cancer

This study of a Chinese cohort demonstrates that in hormone receptor-positive, HER2-negative early-stage breast cancer, the 21-gene recurrence score is primarily driven by molecular pathway activities—specifically the invasion and estrogen group scores—which explain significantly more variance than traditional clinicopathological factors, with histological grade being the sole independent clinical predictor.

Heng Liu, Xin Tang, Xiunan Li2026-08-25
🧬 biology

Sex- and age-dependent energetic dysfunction in LRRK2 G2019S Parkinson’s model revealed by structural analysis of RGC dendritic architecture and metabolic profiling of optic nerve

This study reveals that male and female LRRK2 G2019S mice exhibit sex- and age-dependent differences in retinal ganglion cell structural degeneration and optic nerve metabolic profiles, with males showing earlier deficits that eventually converge with females to a shared pathological endpoint, offering potential biomarkers for early Parkinson's disease staging.

Gloria Cimaglia, James R. Tribble, Pete A. Williams, James E. Morgan, Marcela Votruba, Dayne Beccano-Kelly2026-08-25
🧬 biology

Activate Bcat1 to increase branched-chain amino acids metabolism to promote intrahepatic cholangiocarcinoma migration and invasion via PI3K-AKT-mTOR

This study reveals that elevated branched-chain amino acids metabolism promotes intrahepatic cholangiocarcinoma migration and invasion by activating the PI3K-AKT-mTOR pathway via Bcat1, suggesting that dietary restriction of these amino acids could serve as a precision nutrition therapy to inhibit tumor progression.

Zejia Hao, Dilixiati Kadier, Wangheng Qian, Zixuan Wang, Chenchen Zhang, Yu Shen, Weize Yuan, Yutong Zhu, Qian Wu, Lei L (…)2026-08-25
🧬 biology

ECM-remodeling perivascular stromal state associates with osteoclast functional state in breast cancer bone metastasis

This study integrates bulk and single-cell transcriptomic data to identify a specific ECM-remodeling perivascular stromal state that drives osteoclast functional programs and correlates with poor bone metastasis-free survival in breast cancer, highlighting ITGAV as a key mediator for future validation.

Fulai Zhao, Peng Zhao, Junli Chang, Binghan Yan, Suxia Guo, Xingyuan Sun, Chujie Zhou, Xiaobo Wang, Junjie Tong, Xinyu Z (…)2026-08-25
🧬 biology

Molecular Insights into gene expression changes in apoptosis immune response and cellular regulation pathways in renal failure patients

This study demonstrates that chronic kidney disease progression is driven by a complex molecular axis characterized by significantly elevated expression of apoptosis-related genes (CASP8, CASP9), immunosuppressive markers (PDCD1, CTLA4), and fibrosis-inducing TGFB3, alongside severe hematological and biochemical abnormalities.

Mustafa Riyadh Abdullah, Sahar Saadi Karieb, Omar Sinan Sadiq Hussain Al-Zaidi2026-08-25
🧬 biology

Predicting Human Salmonella Antimicrobial Resistance from Poultry Antibiotic Residues: A Simulation-Based Machine Learning Proof-of-Concept with One Health Integration

This study presents a proof-of-concept simulation demonstrating that an interpretable machine learning pipeline can reliably predict human Salmonella antimicrobial resistance from simulated poultry antibiotic residues, thereby validating a computational framework for generating One Health hypotheses while emphasizing the need for future validation on real-world linked data.

Yara Al-Hallak2026-08-25
🧬 biology

Individuals with Fragile X syndrome present with associative learning deficits

This study introduces a novel, non-verbal online "Memory Game" and demonstrates that individuals with Fragile X syndrome exhibit significant associative learning deficits driven by impaired initial acquisition rather than accelerated forgetting, a pattern conserved across human and Drosophila models that supports the task's utility as a remote biomarker for clinical trials.

Jacob Bennett, Shreya Ghosh, Keneizha Rubanarayana, Sebastien Jacquemont, Randi Hagerman, Sarah Lippe, François V Bolduc2026-08-25