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Systematic analysis from the Global Burden of Disease study reported that, despite global improvements from 1990 to 2021, dietary iron deficiency-associated disease burden remains high in women, children and residents in low socio-demographic index countries.

Here it is shown that the handedness of mirror-image flowers in Cyanella alba is not genetically determined but linked to the spiral arrangement of leaves and asymmetric auxin activity. This reveals a non-genetic mechanism for floral asymmetry.

By integrating single-cell RNA and physically interacting cell sequencing analysis, here Cohen and colleagues report that neutrophils are enriched in physical crosstalk with breast tumor cells, promoting cancer aggressiveness.

Data on beetle, bird, plant and mammal occupancy of woodland sites in UK agricultural landscapes demonstrate how contemporary spatial spillovers and legacies of past land use interact to affect species richness and community composition.

Under field conditions, acquisitive tree species generally grow slowly, whereas conservative species show generally higher realized growth, owing to their ability to tolerate unfavourable environmental conditions.

A method, RARE-seq, for sensitive detection of cell-free RNAs in blood is demonstrated to have diverse clinical applications including diagnosing and characterizing human cancers, and tracking response to RNA therapeutics.

The DREPAGLOBE lentiviral-based gene therapy for sickle cell disease is safe. However, its efficacy depends on the number of infused hematopoietic stem cells (HSCs) and intrinsic, engraftment impairing inflammatory alterations in HSCs.

In a prespecified 3-year analysis of the KEN SHE trial, single-dose HPV vaccination was shown to be well tolerated and provided durable protection against cervical HPV infection in Kenyan women aged 15–20 years.

Circulating factors play an important role in tissue aging. Here, the authors show that serum EV subpopulations and cargoes remodel with age and that EVs from young mouse serum rejuvenate aged skeletal muscle.

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.

An analysis of 24,202 critical cases of COVID-19 identifies potentially druggable targets in inflammatory signalling (JAK1), monocyte–macrophage activation and endothelial permeability (PDE4A), immunometabolism (SLC2A5 and AK5), and host factors required for viral entry and replication (TMPRSS2 and RAB2A).

A lipid nanoparticle is used to deliver mRNA to hematopoietic stem cells in macaques.

FRB 20221022A, detected by the Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst project, shows a pronounced change in polarization during the burst, providing important clues into the nature of the source.

Double Asteroid Redirection Test (DART) mission impact on asteroid Dimophos resulted in an elliptical ejecta plume. Here, the authors show that this elliptical ejecta is due to the curvature of the asteroid and makes kinetic momentum transfer less efficient.

Analyses of strain-resolved metagenomics with isolate sequencing data of skin samples from residents at nursing homes suggest that skin is a reservoir for Candida auris and other multidrug-resistant bacterial species.

Tan and colleagues conducted a single-cell multiomic analysis of T cell acute lymphoblastic leukemia and identified a treatment-resistant subpopulation of bone marrow progenitor-like blasts associated with poor outcomes.

Hervé, Scelfo et al. show that chromosome mis-segregation induces mTORC2- and ATR-mediated p53 activation through a mechanosensitive checkpoint at the nuclear envelope triggered by altered heterochromatin content and increased nuclear membrane tension.

Deep X-ray limits are placed on the source of the closest fast radio burst, FRB 20200120E, ruling out an ultraluminous X-ray source or a young extragalactic pulsar embedded in a Crab-like nebula as its origin.

With age, haematopoietic stem cells (HSCs) produce more myeloid than lymphoid cells, affecting adaptive immunity. By combining HSC single cell transcriptomics with functional studies, Grover et al. find that platelet production is also increased in old murine HSCs and show that the FOG-1 transcription factor contributes to the age-dependent platelet bias.

A global network of researchers was formed to investigate the role of human genetics in SARS-CoV-2 infection and COVID-19 severity; this paper reports 13 genome-wide significant loci and potentially actionable mechanisms in response to infection.

Nanoparticle-based ‘microgauges’ are developed for in vivo force sensing and deployed in C. elegans to investigate how mechanical force correlates with electrical signalling in neuromuscular organs.

Linterman and colleagues examine germinal center formation in older individuals. They find that aged T_FH cells have dysregulated CXCR4 expression, which causes spatial mislocalization of these cells in germinal centers, impairing their ability to provide help to B cells and to promote antibody production.

A base-editing approach optimized to target the retina shows high editing rates in a mouse model of Stargardt disease, as well as in nonhuman primates and ex vivo human retinal explants, paving the way for potential clinical applications.

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.

In a cohort of 50,556 South Asian individuals, partitioned polygenic scores helped identify genetic susceptibility to insulin deficiency and unfavorable fat distribution as key drivers of young-onset T2D diagnosis and faster progression to diabetes-related complications.

This molecular-level study provides a comprehensive assessment of groundwater quality in three German research sites. Hydroclimatic variability is causing fundamental changes in groundwater ecosystems, with implications for global water resources.

Selective serotonin reuptake inhibitors (SSRIs) are widely used antidepressants, but the mechanisms by which they influence behavior are only partially resolved. Using a combination of different approaches, the authors demonstrate that serotonin 1A receptors expressed in mature dentate gyrus granule cells are critical mediators of the response to SSRIs.

Common bean is an evolutionary model for studying adaptive diversity in legumes. Here, the authors present the common bean pangenome based on five high-quality genomes and whole-genome reads of 339 wild and domesticated genotypes, and reveal adaptive gene loss during expansion and domestication.

The tau protein is theorized to spread transneuronally in Alzheimers disease, though this theory remains unproven in humans. Our simulations of epidemic-like protein spreading across human brain networks support this theory, and suggest the spreading dynamics are modified by β-amyloid

One aspect of ageing on immunity is attributed to accelerated thymic atrophy, but the underlying mechanism is still lacking. Here the authors show, using conditional reporter mouse models, that both atrophy and regeneration of the thymus are regulated by rate-limiting morphological changes in epithelial stroma, independent of cell death or proliferation.

Circadian rhythms in gut microbiota composition are crucial for metabolic function, yet the extent to which they govern microbial dynamics in comparison to seasonal and lifetime processes remains unknown. This study of gut bacterial dynamics in wild meerkats over a 20-year period finds that diurnal oscillations in bacterial load and composition eclipse seasonal and lifetime dynamics.

Human cytomegalovirus (HCMV) hijacks host L1 retrotransposon to supercharge its replication. This novel virus-transposon interaction reveals a strategy for viruses to exploit host machinery, accelerating viral DNA replication and enhancing fitness.

Models predict that giant planets should easily form around solar-type stars, but most radial velocity surveys found a rather low number of them. Here, the authors show that Jupiter-like planets may be more common than previously found, at least in low density environments.