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A 165 Myr record of N and Corg isotopes show that the N-cycle responds to feedbacks associated with productivity and the location of upwelling centers changing due to continental meander.

Chronic care manages long-term, progressive conditions, while acute care handles short-term ones. Here, authors show chronic conditions account for most of the global health burden, with 68% of DALYs and 93% of YLDs attributed to chronic care needs.

The number of individuals in a given space influences animal interactions and network dynamics. Here the authors identify general rules underlying density dependence in animal networks and reveal some fundamental differences between spatial and social dynamics.

This study explores the relationship between telomere length and clonal hematopoiesis. Splicing factor and PPM1D gene mutations are more frequent in people with genetically predicted shorter telomere lengths, suggesting that these mutations protect against the consequences of telomere attrition.

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.

Geospatial estimates of the prevalence of anemia in women of reproductive age across 82 low-income and middle-income countries reveals considerable heterogeneity and inequality at national and subnational levels, with few countries on track to meet the WHO Global Nutrition Targets by 2030.

Adenosine is an immunosuppressive metabolite known to limit anti-tumor immune responses. Here the authors report the characterization of an adenosine A2A receptor (A2AR) eGFP reporter mouse, providing immunological insights into the biology of A2AR expression in the context of anti-tumor immunity.

Mucosal-associated invariant T (MAIT) cells facilitate anti-microbial responses, but their functions in cancer protection is unclear. Here the authors show that activated MAIT cells induce an IFN-γ transcriptome in natural killer (NK) cells and enhance NK-dependent anti-cancer immunity in mice, thereby hinting a new avenue for cancer therapy.

The initial production of oxygen in early Earth’s oceans altered the redox chemistry and cycling of nitrogen. A record of nitrogen isotopes from preserved organic matter indicates nitrogen cycling in the presence of free oxygen 2.67 billion years ago, about 200 million years before the first geochemical evidence for atmospheric free oxygen.

Whether multimorbidity accelerates brain Aβ deposition in humans remains largely unknown. Here, the authors demonstrate that higher self-reported multimorbidity burden predicts increased brain Aβ accumulation rates in the ADNI cohort.

Children with SARS-CoV-2 infection are more likely to have mild symptoms and may be asymptomatic, but underlying reasons remain unclear. Here, the authors show cellular, cytokine and antibody response to SARS-CoV-2 infection in three children who repeatedly tested negative for the virus by PCR, despite high exposure in the household.

The immune response to SARS-CoV-2 infection is variable but has been linked to prognosis and the development of severe immunopathology. Here the authors assess a range of immune parameters in both peripheral blood and respiratory samples, providing a comparative assessment of the immune response between these compartments and their potential impact on immune-pathogenesis.

Analysis of 1.32 billion records of medication data from England, Scotland and Wales reveals that the COVID-19 pandemic led to substantial declines in dispensing of antihypertensive and lipid-lowering medications, leading to increased risks for future cardiovascular disease.

Bhattacharjee and Schaeffer et al. map exclusive breastfeeding (EBF) in 94 low- and middle-income countries (LMICs), finding increased EBF practice and reduced subnational variation across the majority of LMICs from 2000 to 2018. However, only six LMICs will meet WHO’s target of ≥70% EBF by 2030 nationally, and only three will achieve this in all districts.

Although progress in the coverage of routine measles vaccination in children in low- and middle-income countries was made during 2000–2019, many countries remain far from the goal of 80% coverage in all districts by 2019.

Machine learning can be used to identify subtypes of psychiatric disease. Here the authors identified two neurostructural subgroups in schizophrenia, each showing reproducibility and generalizability across different collection locations and illness stages, using the SuStain algorithm.

Topological antiferromagnetic states are generated and spatially reconfigured in free-standing crystalline membranes of haematite through strain design.

MAIT cells are abundant in the lungs and confer protection against bacterial pathogens. Whilst activation of these cells has been described during viral infections, here van Wilgenburg and colleagues show that in a murine model MAIT cells contribute to the protective host immune response to influenza virus infection.

Here the authors use single cell profiling of T cells across the human lifespan to show that a suboptimal TCR shift in T cells as we enter older age results in a molecular signature that resembles that of T cells from newborns and children.

Montserrat Garcia-Closas and colleagues report a genome-wide association study for bladder cancer. They identify three new susceptibility loci on chromosomes 22q13.1, 19q12 and 2q37.1.

This study finds that sST2 is a disease-causing factor for Alzheimer’s disease. Higher sST2 levels impair microglial Aβ clearance in APOE4⁺ female individuals. A genetic variant, rs1921622, is associated with a reduction in sST2 level and protects against AD in APOE4⁺ female individuals.

Alzheimer’s disease is heterogeneous in its neuroimaging and clinical phenotypes. Here the authors present a semi-supervised deep learning method, Smile-GAN, to show four neurodegenerative patterns and two progression pathways providing prognostic and clinical information.

In this study the authors identify a possible link between the gene FAM222A and brain atrophy. The protein it encodes is found to accumulate in plaques seen in Alzheimer’s disease, and functional analysis suggests it interacts with amyloid-beta.

Bedoui and colleagues describe a sequential process of integration of innate and CD40-delivered signals in APCs, which optimizes their capacity to drive antiviral CD8⁺ T cell responses.

A new phylogenomic tree for butterflies is constructed using 391 genes from 2,300 species, representing 92% of genera. It suggests that butterflies originated around 100 million years ago in what is now the Americas and originally fed on Fabaceae.

Here, Ratmann et al. show how viral deep sequencing data can be used to reconstruct HIV-1 transmission networks and to infer the direction of transmission in these networks.

Lassé et al. show that genes involved in kidney organoid proteomic response to TNFα segregate a subset of individuals with poor outcomes in proteinuric kidney disease, demonstrating the relevance of kidney organoid modeling to human kidney disease.

Mathematical modelling of 15 years of data from South Africa reveals the spread and vaccine-driven changes in fitness and antimicrobial resistance of Streptococcus pneumoniae.

In Alzheimer’s disease (AD) tau and neurodegeneration have complex regional relationships. Here, the authors show neuronal hypometabolism discordant with tau burden defines functional resilience or susceptibility to Alzheimer’s pathology via limbic/cortical axes. Susceptible groups have faster cognitive decline and evidence of non-Alzheimer’s pathologies.

Sun et al. report human lifespan changes in the brain’s functional connectome in 33,250 individuals, which highlights critical growth milestones and distinct maturation patterns and offers a normative reference for development, aging and diseases.

The interplay between amyloid and tau pathology in Alzheimer’s disease is still not well understood. Here, the authors show that amyloid-related increased in soluble p-tau is related to subsequent accumulation of tau aggregates and cognitive decline in early stage of the disease.

Unlike prokaryotes, which do not leave a fossil trail, the patterns of change over evolutionary time of eukaryotic phytoplankton can be derived from microfossils. Here, Paul Falkowski and Matthew Oliver use the fossil record, resource competition theory and the physical principles of ocean dynamics to propose how climate might have affected phytoplankton populations in the past, and make predictions for the future.

Systematic characterization of longitudinal tau variability in human Alzheimer’s disease using an unbiased subtyping algorithm reveals four trajectories of tau deposition with distinct clinical features.

Variation in antibody levels elicited by the COVID-19 vaccine ChAdOx1 nCov-19 is linked to specific major histocompatibility complex class II alleles, providing insight into the breadth of immune response among vaccinated individuals.

Progressive diseases tend to be heterogeneous in their underlying aetiology mechanism, disease manifestation, and disease time course. Here, Young and colleagues devise a computational method to account for both phenotypic heterogeneity and temporal heterogeneity, and demonstrate it using two neurodegenerative disease cohorts.

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.

Brain-iron elevation is implicated in Alzheimer’s disease (AD), but the impact of the metal on disease outcomes has not been analysed in a longitudinal study. Here, the authors examine the association between the levels of ferritin, an iron storage protein, in the cerebrospinal fluid (CSF) of AD patients and show that CSF ferritin levels predict AD outcomes.