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In vitro propagation of the pathogenic bacterium Coxiella burnetii, the causative agent of Q fever, leads to attenuated virulence and lipopolysaccharide (LPS) truncation. Here, Long et al. show that a strain considered to be avirulent (NMII) can be recovered from infected animals, and these isolates display increased virulence and an elongated LPS due to reversion of a 3-bp mutation in a gene.

The APOE-ε4 allele is the strongest genetic risk factor for late-onset Alzheimer’s disease, but it is not deterministic. Here, the authors show that common genetic variation changes how APOE-ε4 influences cognition.

Targeting neurons that regulate energy balance may offer new approaches for obesity treatment. Here, authors show that chemogenetic and pharmacological manipulation of GABAergic neurons in the DRN/vlPAG increases adaptive thermogenesis and reduces weight gain in mice fed a highfat diet.

Humanity’s Last Exam, a multi-modal benchmark at the frontier of human knowledge, is designed to be an expert-level closed-ended academic benchmark with broad subject coverage.

A comprehensive atlas platform integrating transcriptional and epigenetic data enables more precise engineering of T cell states, accelerating the rational design of more effective cellular immunotherapies.

A high-resolution transcriptomic and epigenomic cell-type atlas of the developing mouse visual cortex from embryonic to postnatal development is presented, providing a real-time dynamic molecular map associated with individual cell types and specific developmental events.

 A transcriptomic cell-type atlas of the whole adult mouse brain with ~5,300 clusters built from single-cell and spatial transcriptomic datasets with more than eight million cells reveals remarkable cell type diversity across the brain and unique cell type characteristics of different brain regions. 

Heparan sulfate proteoglycans facilitate the assembly of clusters of glycoRNAs and cell surface RNA-binding proteins, which negatively modulate VEGF-A signalling and angiogenesis.

The anterior cingulate cortex encodes affective pain behaviours modulated by opioids; targeting opioid-sensitive neurons through a new chemogenetic gene therapy replicates the analgesic effects of morphine, providing precise chronic pain relief without affecting sensory detection.

Long-distance migration and dispersion is a common characteristic of nearly all classes of telencephalic GABAergic neurons, which diversify extensively after birth in the cortex and striatum, but show limited postnatal changes in the septum, preoptic area and pallidum.

A large genome-wide association study of more than 5 million individuals reveals that 12,111 single-nucleotide polymorphisms account for nearly all the heritability of height attributable to common genetic variants.

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).

In this study, the authors uncover how diverse inhibitory interneurons in the amygdala flexibly contribute to fear and safety learning, revealing a key role for inhibition in emotional memory and adaptive circuit plasticity.

An exploratory analysis of the phase 3 ECOSPOR III trial shows that a higher dosage of the oral microbiome therapeutic VOWST led to enhanced pharmacokinetics, increased species engraftment and altered microbiome and metabolite profiles, providing mechanistic insights into how it may prevent Clostridioides difficile infection recurrence.

Green subsidies (carrots) are now becoming a more politically acceptable climate policy option compared with corrective regulations (sticks). However, researcher show that carrots without quick and appropriate sticks will not be sufficient to reach the deep decarbonization goal in the long run.

This multi-omic longitudinal analysis of the healthy human peripheral immune system constructs the Human Immune Health Atlas and assembles data on immune cell composition and state changes with age, including responses to cytomegalovirus infection and influenza vaccination.

A comprehensive single-cell RNA sequencing study delineates cell-type-specific transcriptomic changes in the brain associated with normal ageing that will inform the investigation into functional changes and the interaction of ageing and disease.

Using dual-color mesoscopic imaging in the neocortex of awake mice, the authors show that cholinergic release and neuronal activity exhibit distinct spatiotemporal patterns that are differentially linked to spontaneous fluctuations in behavioral state.

This Pediatric Cell Atlas study analyzes temporal cortex single-nucleus RNA sequencing datasets from eight diverse donors from 4 to 50 years of age, describing gene expression dynamics over the course of brain maturation.

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 authors present a multicenter database to investigate the neural correlates of dreaming, including physiological, behavioral and experiential data. This database could boost the research on the mechanisms of dreaming in humans and the signatures of consciousness.

The affected cellular populations during Alzheimer’s disease progression remain understudied. Here the authors use a cohort of 84 donors, quantitative neuropathology and multimodal datasets from the BRAIN Initiative. Their pseudoprogression analysis revealed two disease phases.

When learning new tasks, both humans and artificial neural networks face a trade-off between reusing prior knowledge to learn faster and avoiding the disruption of earlier learning. This study shows that people and artificial neural networks have similar patterns of transfer and interference and vary in how they balance this trade-off.

Walmsley and colleagues report that systemic hypoxia induces persistent loss of histone H3K4me3 marks and epigenetic reprogramming in neutrophil progenitors, resulting in long-term impairment of subsequent neutrophil effector functions.

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.

A genome-wide association meta-analysis study of blood lipid levels in roughly 1.6 million individuals demonstrates the gain of power attained when diverse ancestries are included to improve fine-mapping and polygenic score generation, with gains in locus discovery related to sample size.

Simultaneous widefield calcium imaging and fMRI provide insight into neural activity at multiple scales and can be used to decipher the cellular origin of BOLD activity.

Epilepsy is a brain network disorder with associated genetic risk factors. Here, the authors show that spatial patterns of transcriptomic vulnerability co-vary with structural brain network alterations in focal and generalized epilepsy.

Whole-genome sequencing, transcriptome-wide association and fine-mapping analyses in over 7,000 individuals with critical COVID-19 are used to identify 16 independent variants that are associated with severe illness in COVID-19.

The contribution of genetic factors to the tumour immune microenvironment (TIME) remains to be investigated. Here, the authors suggest the role of TIME eQTLs for target genes involved in reversing immune suppressive features.

A genome-wide association study meta-analysis combined with multiomics data of osteoarthritis identifies 700 effector genes as well as biological processes with a convergent involvement of multiple effector genes; 10% of these genes express the target of approved drugs.

The in vivo firing patterns of ventral midbrain dopamine neurons are controlled by afferent and intrinsic activity. The authors identified biophysical membrane potential signatures associated with distinct in vivo firing patterns in whole-cell recordings of spontaneously active midbrain dopamine neurons.

Mutual paracrine regulation of the cytokines GREM1 and SPP1 mediate mesenchymal and epithelial cell fate in pancreatic cancer.

Brain structure scaffolds intrinsic function, supporting cognition and behavioral flexibility. Here, the authors show how macroscale organization of cortical microstructure and resting-state function uncouple in transmodal cortex of humans and macaques.

Aguado et al. show that SARS-CoV-2 induces senescence in human brain organoids and in the brains of COVID-19-infected mice and humans. They demonstrate the therapeutic potential of senolytic therapy in protection against COVID-19-induced brain aging.

Comparison between structures of human, mouse and rat P2X7 receptors define ortholog-specific pharmacology and facilitated structure-based drug design of UB-MBX-46, an antagonist that selectively inhibits the human P2X7 receptor with sub-nanomolar potency.

DNA analysis of 6 individuals from eastern and south-central Africa spanning the past approximately 18,000 years, and of 28 previously published ancient individuals, provides genetic evidence supporting hypotheses of increasing regionalization at the end of the Pleistocene.

Epigenomic profiling and massively parallel reporter assays identify 892 functional differentially-active single-nucleotide variants (daSNVs) linked to ten neuropsychiatric diseases. CRISPRi and gene editing approaches show magnesium transport dysfunction as a common genetic pathomechanism.

Combined patch clamp recording, biocytin staining and single-cell RNA-sequencing of human neurocortical neurons shows an expansion of glutamatergic neuron types relative to mouse that characterizes the greater complexity of the human neocortex.

Timothy Frayling, Joel Hirschhorn, Peter Visscher and colleagues report a meta-analysis of genome-wide association studies for adult height in 253,288 individuals. They identify 697 variants in 423 loci significantly associated with adult height and find that these variants cluster in pathways involved in growth and together explain one-fifth of the heritability for this trait.

Lipophilic siRNA conjugates exert therapeutic activity in the mouse CNS.

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.

Mutations reducing the function of MYT1L, a neuron-specific transcription factor, are associated with a syndromic neurodevelopmental disorder, yet it remains unclear which cell types are most impacted by MYT1L loss. Here authors use single-nuclei RNA sequencing to profile the forebrains of MYT1L-deficient mice at three developmental stages and reveal MYT1L deficiency disrupts cortical neuron proportions and gene expression, primarily affecting excitatory neuron maturation programs.