🧬 biology

Shared trans-ancestry architecture of HLA-mediated disease risk in the All of Us Research Program

This study analyzes high-resolution HLA variation across 390,823 diverse participants in the All of Us Research Program to demonstrate that while many HLA-disease associations appear ancestry-specific due to differences in allele frequency and statistical power, the underlying biological effects are largely shared across genetic ancestries.

Alison Motsinger-Reif, Kwangmi Ahn, John House, Adam Burkholder, Tam Tran, Joseph Breeyear, Cristina Justice, Jacqueline (…)2026-07-14
🧬 biology

The Role of Cuticular Hydrocarbons in the Intraspecific Sexual Recognition of Cyclocephala Barrerai (Coleoptera: Melolonthidae)

This study demonstrates that cuticular hydrocarbons extracted from female *Cyclocephala barrerai* function as contact sex pheromones that elicit specific mating behaviors in males, with their chemical composition varying significantly as the insects' gonads mature.

ABRAHAM SANCHEZ-CRUZ, Patricia Villa-Ayala, JULIO C. ROJAS, PAOLA R. GARCÍA-SOSA, Norma Robledo, Alfredo Jiménez-Pérez2026-07-14
🧬 biology

Gut Microbiota as the Gatekeeper: Oral Melatonin Breaks Ferroptosis to Rescue Alzheimer's Disease Brain and Colon in Iron Overload

This study demonstrates that oral melatonin alleviates Alzheimer's disease pathology and gut comorbidities in a mouse model by reshaping the gut microbiota to inhibit ferroptosis via the Keap1/Nrf2/HO-1 axis, thereby confirming a microbiota-dependent mechanism for its neuroprotective effects.

Dan Pu, Ju Wu, Yanjie Dou, Wei Zhang, Longxing Wang, Yaohui Wang, Xiaofei Han2026-07-14
🧬 biology

Novel Thermophilic Thermobaculum Strains From High-altitude Geothermal Springs in Tajikistan

This study reports the isolation and characterization of two novel thermophilic bacterial strains, T41p and KhOGp, from high-altitude geothermal springs in Tajikistan, identifying them as distinct species within the genus *Thermobaculum* with significant biotechnological potential due to their robust growth conditions and diverse hydrolytic enzyme activities.

Munavvara Dzhuraeva, Nils-Kåre Birkeland, Khursheda Bobodzhanova2026-07-14
🧬 biology

Integration of single-cell and transcriptome sequencing data reveals the mechanism of macrophage polarization-related genes in intervertebral disc degeneration

This study integrates single-cell and transcriptome sequencing data to identify four macrophage polarization-related biomarkers (NRP2, ANXA1, TSPO, and FN1) that effectively diagnose intervertebral disc degeneration and elucidate their roles in immune cell interactions and potential therapeutic targeting.

Chi Zhang, BIn Chen, XiaoPing Cui, HaiBiao Sun, Yan Huang2026-07-14
🧬 biology

Soil bacterial and fungal succession during carrion decomposition in central South Africa: implications for microbial postmortem interval estimation

This study demonstrates that distinct bacterial and fungal succession patterns occur in gravesoil beneath decomposing pig carcasses in central South Africa, supporting the potential of microbial metabarcoding as a supplementary method for estimating the postmortem interval in sub-Saharan forensic contexts.

Nosipho C Sithole, Johannes Hendrik Smith, Leticia Wessels, Karin Ehlers2026-07-14
🧬 biology

Multi-omics analysis reveals protein kinase A-associated regulatory remodeling during adaptation of Trichoderma reesei to lignocellulosic substrate

This multi-omics study demonstrates that the protein kinase A subunit PKAc1 in *Trichoderma reesei* drives regulatory and phosphorylation remodeling essential for adapting to sugarcane bagasse, thereby modulating the expression and activity of key biomass-degrading enzymes.

Hermano Zenaide Neto, Wellington Ramos Pedersoli, David Batista Maués, Lucas Matheus Soares Pereira, Iasmin Cartaxo Tave (…)2026-07-14