🧬 biology

Cortical Oscillatory Dynamics Track Sympathetic Arousal and Index Individual Differences in Anxiety

By combining magnetoencephalography with electrodermal activity during a sustained-threat task, this study reveals that specific cortical oscillatory patterns precede sympathetic arousal and that the strength of this neural–autonomic coupling, rather than cortical power or arousal levels alone, serves as a key marker for individual differences in anxiety.

Kristina Pultsina, Ivan Zubarev, Pinja Ronkainen, Tiina Parviainen2026-07-22
🧬 biology

Toxic Effects of Benzo[b]fluoranthene on Developmental Competence of Ovine Oocytes During In Vitro Culture

Exposure to Benzo[b]fluoranthene (B[b]F) impairs ovine oocyte developmental competence by inducing oxidative stress, triggering apoptosis via dysregulated BAX, Caspase3, and BCL2 expression, and suppressing GDF9 and BMP15, ultimately leading to reduced nuclear and cytoplasmic maturation and compromised embryonic development.

Atieh Hajarizadeh, Marziyeh Mehrabadi, Iman Rad, Nastaran Ansari Noghlebari, Niloofar Mohammad Ebrahim, Elaheh Esmaeili2026-07-22
🧬 biology

Prokaryotic (6-4) photolyases depend on a one-way bridge for blue-light triggered electron transfer

This study reveals that prokaryotic 6-4 photolyases utilize a unique tyrosine-mediated electron tunneling bridge and a transient E402-dependent protonation pathway to drive blue-light-triggered FAD photoreduction, while their [4Fe-4S] cluster acts as a short-lived secondary electron injector that rapidly recombines due to the lack of an acceptor.

Lars-Oliver Essen, Christian Joshua Rosner, Florian Trunk, Elisa Seiler, Andrea Bologna, Valeri Fuchs, Hans-Joachim Emme (…)2026-07-22
🧬 biology

Ketamine persists within neuronal compartments long after systemic clearance

By developing genetically encoded fluorescent sensors (iKetSnFRs), researchers discovered that ketamine persists within specific intracellular neuronal compartments long after systemic clearance, providing a mechanistic basis for its rapid and sustained antidepressant effects.

Joseph Cichon, Kallol Bera, Zachary Blumenfeld, Elaine Lin, Meah Ahmed, Eve Fine, Md. Nadim Hossain, Andrey Andreev, Alt (…)2026-07-22
🧬 biology

Spiro[indoline-tetrazolo[1,5-c]quinazoline] derivatives as candidate HDAC8 inhibitors: a molecular docking and ADMET analysis using the HDAC8–inhibitor complex (PDB 2V5X)

This study identifies novel spiro[indoline-tetrazolo[1,5-c]quinazoline] derivatives as promising non-hydroxamate HDAC8 inhibitors through molecular docking and ADMET analysis, demonstrating superior binding scores and favorable cytotoxicity profiles driven by specific pharmacophoric interactions that may offer improved selectivity and reduced toxicity compared to conventional inhibitors.

Lyudmyla Antypenko, Oleksii Antypenko, Yuliia Kozak, Volodymyr Salionov, Mykola Maletskyi, Hanna Lysianska, Serhii Koval (…)2026-07-22
🧬 biology

Pulmonary Capillary Confinement Shapes Bacteria-engaging Neutrophil Fate Transition

Quantitative lung intravital imaging reveals that mechanical confinement during pulmonary capillary transit triggers GsMTx4-sensitive calcium signaling and nuclear remodeling in neutrophils, leading to the formation of motile anuclear cytoplasts that preferentially engage *Pseudomonas aeruginosa*, thereby establishing the capillary bed as a mechanical checkpoint for early host–microbe interactions.

Yoshikazu Tsukasaki, Kaori Masuhara2026-07-22
🧬 biology

Learning Canonical Representations for Unified 3D Molecular Modeling

The paper introduces TheMol, a 3D molecular representation framework that learns a canonical frame to decouple global pose from representation learning, enabling a single unified model to effectively handle diverse tasks like property prediction, coordinate generation, and structure-based optimization while improving rotational stability and latent-space structure.

Sanghyun Park, Seungyeon Choi, Hwanhee Kim, yoonju kim, seungyong lee, inpyo hong2026-07-22
🧬 biology

Attenuation of typical sex differences in the time-resolved functional connectivity of the fusiform gyrus in autism

This study utilizes micro co-activation patterns analysis on resting-state fMRI data to reveal that autism is characterized by an attenuation and reversal of typical sex differences in the dynamic functional connectivity and spatial extent of fusiform gyrus subregions coupled with the default mode network, highlighting sex as a critical dimension of neurobiological heterogeneity in social cognition.

Dorothea Floris, Luigi Saccaro, Farnaz Delavari, Dawid Strzelczyk, Bruno Hebling Vieira, Camille Elleaume, Charlotte Pre (…)2026-07-22
🧬 biology

A genomic history of African cattle

By analyzing whole-genome sequences from nearly 5,000 African cattle, including ancient samples, this study reveals that the continent's cattle represent a complex mosaic of distinct taurine and indicine lineages whose geographic distributions and evolutionary trajectories have been uniquely shaped by contrasting human subsistence strategies, specifically the sedentary farming of taurine breeds versus the mobile pastoralism driving indicine dispersal.

Laurent Frantz, Said Ng'ang'a, James Ward, Gillian McHugo, Mica Jones, Olaf Thalmann, Mbunkah Achukwi, Adeniyi Adeola, T (…)2026-07-22