🧬 biology

Polysaccharide from Phormidium persicinum (Reinke) Gom. promotes neuronal differentiation and mitigates hypoxia-induced neuronal disruptions in vitro

This study demonstrates that a crude polysaccharide extracted from the marine microalga *Phormidium persicinum* promotes neuronal differentiation and mitigates hypoxia-induced metabolic disruptions in SH-SY5Y cells, highlighting its potential as a therapeutic agent for neurodegenerative disorders.

Sanjivani Satpute, Thangajyothi Nadar, Kishan Kannaujiya, Akshay Bagwe, Manjushri Deodhar, Bharatbhushan Sharma2026-10-23
🧬 biology

Back to roots: a phylogeographic assessment of the refugial mosaic of Western Eurasian Fagus L. (Fagaceae) in the Caucasus

This study utilizes fine-scale plastid sequencing of 252 beech populations to reveal that the Caucasus serves as a complex refugial mosaic preserving ancient, pre-Pliocene maternal lineages with distinct demographic histories between the Black and Caspian Sea drainage systems, underscoring the critical role of chloroplast DNA in conserving these unique evolutionary trajectories.

Jana Ekhvaia, Tamar Jolokhava, Arsen Bakhia, Aleksandre Gavashelishvili, Marco Cosimo Simeone, Guido W Grimm, Thomas Den (…)2026-10-23
🧬 biology

Development and Laboratory Evaluation of a Standardized Procedure for Environmental Sampling and Molecular Detection of Human Papillomavirus

This study evaluates six key factors affecting environmental HPV detection in a laboratory setting, concluding that dry polyester swabs combined with dedicated viral transport media offer the most practical approach for molecular recovery, while surface material and ambient temperature are the primary determinants of detectability.

Xiuzhi Duan, Meng Yang, Yiyi Xie, Xuchu Wang, Liqing Xu, Zhihua Tao2026-10-23
🧬 biology

Deriving and Transferring the SPEARpesticide Bioindicator to a New Region: an Ecotoxicity-Based, Indigenous-Fauna Sensitivity Index Field-Validated in the Seomjin River, South Korea

This study successfully adapted and field-validated a pesticide-specific bioindicator for South Korea's Seomjin River by integrating toxicity data from 20 indigenous species, demonstrating that controlling for organic pollution gradients reveals a robust correlation between the index and pesticide exposure that standard diversity metrics cannot detect.

Jong-Hyeon Lee, Jang-Yeon Park, Su-Hyun Kim, Seung-Been Heo2026-10-23
🧬 biology

Intratumor Heterogeneity Through the Lens of Gene Regulatory Networks

By analyzing scRNA-seq data across multiple cancer types and treatment cohorts, this study infers clone-specific gene regulatory networks to demonstrate that tumor clones exhibit distinct regulatory architectures linked to fitness, where treatment-induced remodeling drives structural divergence yet functional convergence, ultimately revealing conserved and variable regulons associated with patient survival.

Narein Rao, Nicolae Sapoval, Luay Nakhleh, Hamim Zafar2026-10-23
🧬 biology

Inflammatory stimuli promote lipid accumulation in myelin-phagocytosing macrophages: effects of LXR, PPARγ and RXR agonists

This study demonstrates that inflammatory stimuli impair myelin clearance by promoting lipid accumulation in macrophages, a process that can be mitigated by agonists of the nuclear receptors LXR, PPARγ, and RXR, suggesting these receptors as potential therapeutic targets for CNS injuries involving lipid debris.

Lorenzo Romero-Ramírez, Natalia Díaz-Rubio, Alejandro Arriero-Cabañero, Jörg Mey2026-10-23