🧬 biology

Bisexual population of the parthenogenetic tick Amblyomma rotundatum: bioecological data from the field and laboratory

This study reports the first identification of a bisexual population of the previously considered parthenogenetic tick *Amblyomma rotundatum* in the Amazon biome of Brazil, demonstrating the presence of males and females in comparable proportions both in the field and under laboratory conditions.

Ruth M. Moraes e Silva, Eduardo B. Almeida Júnior, Leonardo T. DallAgnol, Rafael M. S. Nogueira, Julia M. S. Santos, Ana (…)2026-06-25
🧬 biology

Genetic Gabrd Deficiency Drives Compensatory Myelination of Inhibitory Axons to Elevate Seizure Thresholds

This study reveals that global Gabrd deficiency triggers a developmentally restricted, compensatory mechanism involving Pleiotrophin-mediated myelination of parvalbumin-positive inhibitory axons, which fortifies seizure resistance and suggests myelination enhancement as a novel therapeutic strategy for refractory epilepsy.

Lishuo Liu, Xi Zhang, Qiang Meng, Haohao Cui, Xiaobo Ye, Yong Liu, Huanfa Li, Yutao Ren, Wei Wu, Hua Zhang, Hao Wu2026-06-25
🧬 biology

Small-Molecule Mimicry Intercepts PEX5 Recognition by Trypanosomal PEX14 as Revealed by Molecular Dynamics

This study utilizes molecular dynamics simulations to elucidate the structural determinants of the essential PEX5–PEX14 interaction in trypanosomes and identifies SuFEx-derived naphthoquinones as promising small-molecule inhibitors that effectively mimic the native recognition motif to disrupt glycosomal protein import.

Amanda R. Guimarães, Esther R. S. Paz, Allison Serrano-Trejos, Chonny Herrera-Acevedo, Iván Rivilla, Oscar R. Ballestero (…)2026-06-25
🧬 biology

Transcriptional heterogeneity predicts and enables clonal selection in ageing haematopoiesis

This study demonstrates that transcriptional heterogeneity, rather than mean gene expression, predicts clonal selection in ageing haematopoiesis by revealing that increased variability in stem cell gene expression programs drives the expansion of specific clones and is conserved across species as a marker for myeloid malignancy risk.

Sheng Li, Marco De Dominici, Kailiang Chen, Xunxuan Chen, Yang Liu, Qiuyang Zhang, James Chavez, Xiaowen Chen, Travis Ro (…)2026-06-25
🧬 biology

Lobe-resolved transcriptomic profiling of post-pneumonectomy lung growth reveals Fgfr2b-dependent epithelial maintenance and control of fibrotic remodeling

This study demonstrates that compensatory lung growth following pneumonectomy is a regionally specific process driven by Fgfr2b signaling, which is essential for maintaining epithelial integrity and preventing fibrotic remodeling, with an embryonic Fgfr2b-responsive signature that is diminished in human lung diseases.

Afshin Noori, Weiwei Yang, Negah Ahmadvand, Arun Lingampally, Marek bartkuhn, dongzho li, Julia Backert, esmeralda vasqu (…)2026-06-25
🧬 biology

The Gini coefficient as a surrogate for the regulability or homeostasis of metabolite concentrations: focus on ergothioneine

This paper proposes that the Gini coefficient serves as a useful non-parametric metric to assess the regulability and origin of metabolites, demonstrating that tightly regulated endogenous compounds exhibit low coefficients while exogenous substances show higher values, with ergothioneine displaying intermediate variability indicative of its dietary origin.

Douglas Bruce Kell, Warwick B. Dunn, Catherine L. Winder, Keerthana Anand, Benjamin Greenfield, Louise C. Kenny, Abi Mer (…)2026-06-25