🧬 biology

Historical connectivity but contemporary isolation: genetic diversity, gene flow, and conservation units in Myricaria germanica in Central Europe

This study reveals that while *Myricaria germanica* retains historical signatures of connectivity through pollen-mediated gene flow, contemporary seed dispersal is now largely restricted within river catchments, leading to genetic isolation and highlighting the need to prioritize individual catchments as distinct conservation units to preserve the species' evolutionary potential.

Tania Chavarria, Silke werth, Kailin Weitkämper, Christoph Scheidegger2026-07-23
🧬 biology

Functional characterization of the human Dicer1e isoform reveals non-canonical RNA processing and context-dependent remodeling of cellular regulatory networks

This study characterizes the human Dicer1e isoform as a specialized RNase that, despite lacking canonical domains, retains catalytic activity to produce heterogeneous RNA fragments and drives context-dependent remodeling of cellular regulatory networks and proliferation, particularly in hDicer-deficient environments.

Marta Wojnicka, Arkadiusz Kajdasz, Lukasz Marczak, Piotr H. Malecki, Aleksander Strugala, Klaudia Wojcik, Konrad Kuczyns (…)2026-07-23
🧬 biology

An Acetylation-Primed SUMOylation Switch Controls RORβ Stability through a p300-SIRT1 Regulatory Axis

This study reveals that RORβ stability is governed by a p300-SIRT1 regulatory axis where p300-mediated acetylation at K176 primes SUMOylation at K179, thereby targeting RORβ for proteasomal degradation and modulating its transcriptional activity in neurological, retinal, and bone contexts.

Patrick Griffin, Timothy O’Leary, Denis Shutin, Nadeska Montalvan, Nereida Abad-Yang, Vuong Dang, Dean Edwards, Mi Ra Ch (…)2026-07-23
🧬 biology

Shared lipidome and proteome signatures of frontotemporal lobar degeneration and Alzheimer’s disease

This study reveals that frontotemporal lobar degeneration and Alzheimer's disease share convergent disruptions in lipid homeostasis and lysosomal metabolism, characterized by specific alterations in cardiolipins, gangliosides, and cholesterol esters alongside proteomic changes in lipid-processing enzymes, despite some subtype-specific variations.

Yohannes Ambaw, Alissa Nana, Zhuoning Li, Shubham Singh, Mara Monetti, Bruce Miller, Salvatore Spina, Lea Grinberg, Will (…)2026-07-23
🧬 biology

Introducing Lithikos 3 – The Solid Geometry of Latent Acheulean Knapping Expertise: A Novel Referenced Volumetric Morphometric Approach

This paper introduces Lithikos 3, a novel sample-independent volumetric morphometric approach that quantifies latent Acheulean knapping skill through a persistent scalar coefficient derived from an artefact's solid geometry, thereby extending analytical capabilities from assemblage-level tendencies to individual artefact-level distributional structures.

James Hicks2026-07-23