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The majority of incident HIV infections in Eastern and Southern Africa occur in the general population. Here, the authors harmonise data from eight open population-based cohort studies from six countries and describe individual and community-level risk factors for HIV acquisition.

cellSTAAR advances noncoding rare variant association analysis by integrating single-cell genomics data.

The stability of interactions across trophic levels is crucial for ecosystem resilience but remains poorly understood. This study shows that loss of tree diversity destabilizes specialist herbivores, offering new insights into the mechanisms of pest outbreaks.

The lack of galactic grandmothers in visions of the future reflects ageism and sexism in the here and now. By Sylvia Spruck Wrigley

Anthers, the male reproductive organs in plants, are a model to explore the establishment of complex three-dimensional shapes. Live imaging, genetics and modelling reveal an active role for inner layers in driving morphogenesis.

Pathogenic variants in UNC13A underlie a novel neurodevelopmental syndrome, with three subtypes defined by distinct genotypes with varying clinical and functional impacts characterized in cellular and animal models.

Sheehan et al. have characterized the circadian translatomes of astrocytes and microglia in the mouse cortex in the context of amyloid pathology or aging, revealing cell- and disease-specific reprogramming of neurodegeneration-related pathways.

In Caenorhabditis elegans, ablation of germline stem cells leads to extended lifespan and increased fat storage. Here the authors show that disrupting distinct gametogenesis programs and germline progression in C. elegans triggers molecular responses that affect fat metabolism, stress resilience, and lifespan.

The advantage of living in cities compared with rural areas with respect to height and BMI in children and adolescents has generally become smaller globally from 1990 to 2020, except in sub-Saharan Africa.

The most common protein modification in eukaryotes is N-terminal acetylation, but its functional impact has remained enigmatic. Here, the authors find that a key role for N-terminal acetylation is shielding proteins from ubiquitin ligase-mediated degradation, mediating motility and longevity.

SET-26, HCF-1, HDA-1 are factors that help package DNA and regulate gene expression. Here, the authors find that SET-26 recruits HCF-1 to specific locations along the genome, where they antagonize the activity of HDA-1. Together, they maintain balanced gene expression and longevity in C. elegans.

Polygenic risk scores have potential to predict an individual’s risk of disease based on genetic markers. Here, the authors develop a polygenic risk score for hypertension and test it in a multi-ethnic cohort, finding that the score is associated with higher likelihood of hypertension development 4-6 years later.

MultiSTAAR provides a general and flexible statistical framework for functionally informed multi-trait rare variant analysis of biobank-scale sequencing studies by jointly analyzing multiple traits and incorporating annotation information.

Affordability of dietary patterns varies across countries, thereby affecting the levels of animal- and plant-based foods required to satisfy nutritional demands. Using an optimization model, Chungchunlam et al. reveal the components of the least-cost nutritious diet in the United States.

Peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS) is a heterogeneous and aggressive type of T-cell lymphoma. Here, the authors perform single-cell analyses of human and murine PTCL-NOS tumors, and identify a subtype defined by the loss of SMARCB1 that could be targeted with HDAC-inhibitor combination therapies.

Assessing brain aging heterogeneity in a cohort of 49,482 individuals from 11 studies, a generative model identifies five dominant patterns of brain atrophy, with specific associations with biomedical, lifestyle and genetic factors.

Biological sex affects all aspects of animal physiology. Using the model C. elegans, the authors show that metabolomes are highly sex-specific and include a vast space of yet unidentified metabolites that may control development and lifespan.

Reduced glomerular filtration rate (eGFR) is a hallmark of chronic kidney disease. Here, Pattaro et al. conduct a meta-analysis to discover several new loci associated with variation in eGFR and find that genes associated with eGFR loci often encode proteins potentially related to kidney development.

Ancient genome-wide data of 722 individuals and interdisciplinary analysis of large seventh- to eighth-century ce neighbouring cemeteries near Vienna are used to address the impact of the encounter between Eastern Asian Avars and Europeans.

Most of us have grown up hearing stories of gender bias and 'glass ceilings'. We wonder how much these biases and ceilings affect our own lives.

Analysis of whole-genome sequences of 25,465 individuals of European ancestry shows that rare variants contribute substantially to the heritability of height and body mass index.

Gallego-Rudolf et al. report accelerated brain activity with initial amyloid-β deposition in asymptomatic individuals. In those where tau also starts accumulating, brain activity decelerates, correlating with subsequent cognitive decline.

Alzheimer’s disease has been associated with increased structural brain aging. Here the authors describe a model that predicts brain aging from resting state functional connectivity data, and demonstrate this is accelerated in individuals with pre-clinical familial Alzheimer’s disease.

Hygienists Rumana Hussein and Sylvia Van Blerk love the flexibility their career affords them. Their perfect life balance is in direct contrast to some of Rumana's high-flying patients however, for whom a hygiene appointment is a well-earned break, writes Julie Ferry.

Analyses of genome and exome sequencing data identify rare coding and structural variants associated with atrial fibrillation and highlight genetic links between atrial fibrillation and cardiomyopathies.

A cross-ancestry meta-analysis of genome-wide association studies identifies association signals for stroke and its subtypes at 89 (61 new) independent loci, reveals putative causal genes, highlighting F11, KLKB1, PROC, GP1BA, LAMC2 and VCAM1 as potential drug targets, and provides cross-ancestry integrative risk prediction.

The isodendritic core is a group of neuromodulatory nuclei with diffuse projections. Here the authors describe associations between the microstructural integrity of the isodendritic core and whole-brain white matter in humans, and its relationship to Apolipoprotein-E4 carrier status.

Ossenkoppele, Coomans and colleagues analyzed the tau PET data of 12,048 individuals from 42 cohorts worldwide. They found that age, amyloid-β status, presence of an APOE ε4 allele and female sex are key contributors to tau PET positivity, which should aid clinical decision-making and trial designs.

Although the common genetic variants contributing to blood lipid levels have been studied, the contribution of rare variants is less understood. Here, the authors perform a rare coding and noncoding variant association study of blood lipid levels using whole genome sequencing data.

An analysis of 2,954 genomes from 38 cancer subtypes identified 19,166 retrotransposition events in 35% of samples. Aberrant LINE-1 retrotranspositions can lead to the deletion of tumor-suppressor genes as well as the amplification of oncogenes.