🧬 biology

Highly Pathogenic Avian Influenza Clade 2.3.4.4b in Antarctic Pinnipeds: first evidences of virus circulation in Weddell seals

This study provides the first evidence of highly pathogenic avian influenza H5N1 clade 2.3.4.4b circulation in Antarctic Weddell seals, detected through non-invasive fecal sampling and linked to the South American viral lineage, highlighting the need for continued One Health monitoring of Antarctic marine mammals.

Alanis Silva Melgarejo, Miguel Leonetti Corrêa, Bruna Simone Paredes-Galarza, Raissa Gasparetto, Francine Cezar Bandeira (…)2026-09-11
🧬 biology

Respiratory virus mRNA as competitive viral RNA increases host factors expression and facilitates viral infection and replication

This study reveals that respiratory virus RNAs act as competitive sponges for specific host microRNAs, thereby upregulating host factors that enhance viral replication and receptor transport through a power-law regulatory mechanism.

Songdong Meng, Zihao Wang, Liyuan Qian, Zhaoqi Zhou, Shanxin Peng, Rui Li, Zhentao Liang, Jiuru Wang, Fang Cheng, Changf (…)2026-09-11
🧬 biology

Epigenetic Signals in Perinatal Depression: A Systematic Review of Maternal-Fetal Stress, Hormonal, and Neurodevelopmental Pathways

This systematic review of 11 human studies indicates that perinatal depression involves convergent epigenetic alterations across stress, endocrine, circadian, and neurodevelopmental pathways—particularly DNA methylation in genes like NR3C1, TTC9B, and CRY1—though current evidence is limited by small sample sizes and a lack of histone modification data, highlighting the need for longitudinal multi-omics research to validate biomarkers and clarify causal mechanisms.

Pedro Guedes2026-09-11
🧬 biology

Fractal invariance of relative neurodegenerative tissue vulnerability: An onto-phylogenetic field validated on the TDP-43 spectrum

This study introduces an onto-phylogenetic coordinate system (OPC) that models neurodegenerative tissue vulnerability as a scale-invariant, geometric property of spatiotemporal architecture, demonstrating that diverse TDP-43 proteinopathies (ALS, FTLD-TDP, and LATE-NC) follow deterministic, fractally invariant pathways of least resistance dictated by thermodynamic gradients rather than specific protein characteristics.

Felix Geser2026-09-11
🧬 biology

Migration Model of Lung Cancer Cell Dynamics and Immune System Interplay

This paper presents a partial differential equation-based mathematical model integrating lung cancer cell migration, growth, and tumor-immune interactions to analyze disease dynamics and treatment responses, while also exploring fluid dynamics in obstructed airways and identifying a "Go-or-Grow" mechanism as a key descriptor for specific cell lines.

Willie Kudakwashe Chidaushe, Thomas Musora, Steady Mushayabasa2026-09-11