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Estimates from the Global Burden of Disease study reveal declines in chronic respiratory disease mortality between 1990 and 2023—especially during the COVID-19 pandemic—but the burdens on people affected remain substantial.

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.

Across 13 longitudinal studies (3,737 adults), the authors show that brain atrophy parallels memory loss, with a stronger coupling in later life. APOE ε4 increases decline, yet genetic risk does not modify the brain–memory relationship.

Developing zebrafish retina and brain tissues undergo a nuclear jamming transition that induces crystalline-like cellular ordering, with the emergent tissue stiffness controlled by nuclear mechanics.

Magnetic anti-skyrmions—chiral spin textures that could find applications in spintronics—have been recently observed in inverse tetragonal Heusler Mn_1.4Pt_0.9Pd_0.1Sn. Here, the authors observe anti-skyrmions in thin films of Mn_1.4Pt_0.9Pd_0.1Sn over a wide range of temperature and magnetic fields.

Thermal lepton pairs are ideal probes for the temperature of quark-gluon plasma. Here, the STAR Collaboration uses thermal electron-positron pair production to measure quark-gluon plasma average temperature at different stages of the evolution.

High-throughput screening and hit optimization have led to the development of a small molecule, CIM-834, that targets the SARS-CoV-2 membrane protein and blocks assembly of the virus.

Here the authors dissect the contribution of IL-21 signaling to immune checkpoint-responding CD8⁺ T cells from mouse models and patients being treated for advanced melanoma.

Here the authors determine the cryo-EM structure of native fibrillin microfibrils and observe how inherited genetic mutations in the microfibrils contribute to disease by disrupting a regulatory TGFβ-binding site.

Persistent diabetic complications despite controlled blood glucose levels, known as hyperglycemic memory, remain a poorly understood phenomenon in diabetic kidney disease. Here the authors identify senescence-associated gene p21 as a regulator of hyperglycemic memory, the suppression of which improves hyperglycemic memory and renal function.

The crystal structure of rubella virus E1 glycoprotein in its post-fusion form reveals a class II fusion protein with distinct features so far unseen in any other crystallized fusion protein; the location of an antibody-neutralization epitope also suggests that rubella-specific antibodies may function through prevention of E1 glycoprotein trimer formation during cell entry.

The targets of a microRNA (miRNA) are usually identified by computational analysis of sequences complementary to the miRNA. Working with inflorescence tissue of Arabidopsis, German et al. devise an experimental approach in which the products of miRNA-mediated cleavage are sequenced and used to identify miRNA–target RNA pairs.

CD8⁺ T cells reprogram their metabolism in response to the gut environment. Upon sensing of PGE₂, gut CD8⁺ T cells reduce their mitochondrial content, an event that ultimately shapes the pool of CD8⁺ T cells in the intestinal tissue.

There is an urgent need for anti-virals targeting SARS-CoV-2. One of the most promising viral targets is the main protease of SARS-CoV-2, which is essential for viral replication and has no human analogue. Here, Abdelnabi et al. show that one of the most promising anti-virals (PF-07321332), currently in clinical trials, protects against SARS-CoV-2 alpha, beta and delta variant infection and provide evidence of reduced transmission.

The role of coagulation factor FXII in diabetic kidney disease (DKD) remains unknown. Here, the authors show that zymogen FXII induces kidney injury via receptor (uPAR)-mediated signaling by inducing oxidative DNA damage and senescence, identifying new potential therapeutic targets for DKD.

Using serial femtosecond X-ray cystallography, we provide structural insights into the final reaction step of Kok’s photosynthetic water oxidation cycle, specifically the S₃→[S₄]→S₀ transition where O₂ is formed.

By analyzing bulk and single-cell RNA-sequencing datasets generated from left atrial appendages of individuals with atrial fibrillation and non-affected controls, Leblanc and Yiu identify cell-type-specific genes and transcriptomic programs implicated in atrial fibrillation, a cardiomyocyte-specific androgen receptor signaling signature and an anti-fibrotic effect of NR4A1 inhibition in atrial cardiofibroblasts.

Bennett et al. conducted a population-based study in adolescents and young adults with gliomas, revealing the specific molecular alterations and identifying potential subclassifications and targets.

Heteroatom-substituted C(sp³)-rich polycyclic hydrocarbon rings, isosteric to heterocyclic rings, are not common due to the challenging synthesis. Now a photoredox-catalysed strategy to insert amidyl radicals into bicyclo[1.1.0]butanes is presented, providing direct access to 2-oxa-4-azabicyclo[3.1.1]hept-3-enes.

This study analyzes the 3d shapes of landslides and introduces a method to discern landslide movements, such as slides, flows and falls.

Through sequencing of 88,005 nuclei from the breast tissues of clinically healthy women of diverse genetic ancestry, a global breast single-nucleus atlas was developed that identifies distinct cell types and ancestry-level differences linked to epithelial and fibroblast cell states, which in turn could influence disease incidence, molecular subtypes and progression.

The authors highlight inconsistencies and divergencies in the literature reporting data on indirect calorimetry for studies on whole-body energy homeostasis, and propose harmonization of standards to facilitate data comparison and interpretation across different datasets.

The oxygen-evolving complex in Photosystem II (PSII) catalyzes the light-driven oxidation of water to oxygen and it is still under debate how the water reaches the active site. Here, the authors analyse time-resolved XFEL-based crystal structures of PSII that were determined at room temperature and report the structures of the waters in the putative channels surrounding the active site at various time-points during the reaction cycle and conclude that the O1 channel is the likely water intake pathway and the Cl1 channel the likely proton release pathway.

In a post-approval study including more than 17,000 patients on the safety of pulsed field ablation, a new method for treatment of atrial fibrillation, the procedure was found to have a low rate of adverse events but was associated with some unexpected rare complications that will need further study.

Skyrmions and anti-skyrmions often exist in distinct material systems. Here, the authors observe elliptical skyrmions and anti-skyrmions with opposite topological charges in one tetragonal Heusler compound Mn_1.4Pt_0.9Pd_0.1Sn with D_2d symmetry.

Over the past decade, the field of metabolism has witnessed remarkable scientific discoveries that reshaped the understanding of metabolic physiology and disease. As we launch Nature Metabolism, we look at what the future holds for metabolic research.

Here, Saha et al. show that self-intercalation of e₂Cr atoms in CrTe₂ create an asymmetry in the number of atoms intercalated in the van der Waals gaps between the layers of CrTe₂. This inversion symmetry breaking leads to non-collinear spin-textures and Néel-type magnetic skyrmions over a wide temperature range.

Hyaluronan is a naturally occurring linear polysaccharide that together with collagens, enzymes, and glycoproteins forms the extracellular matrix. Here the authors show that adipose tissue overproduction of Hyaluronan reduces fat accumulation in mice fed high-fat diet and improves systemic glucose homeostasis.

Semiconductor nanowires are promising candidates for the realization of novel transistor concepts. Here, the authors demonstrate that electron mobility in strained coaxial nanowire heterostructures can be higher than in the corresponding bulk crystals.

As macrophages switch to a proinflammatory gylcolytic state they start to generate triglyceride-rich lipid droplets, but what function these droplets have in this context is not clear. Here the authors show that this triglyceride synthesis is requisite for prostaglandin E2 production and subsequent inflammatory activation.

Currently, few mouse models exist to recapitulate human melanomagenesis. Here, the authors establish a c-Kit-CreER-driven model to target melanocyte stem cells (McSCs) and show that oncogenic McSCs give rise to epidermal melanoma that invade into the dermis, similar to human melanoma.

The collective-flow-assisted nuclear shape-imaging method images the nuclear global shape by colliding them at ultrarelativistic speeds and analysing the collective response of outgoing debris.

Skyrmions in synthetic antiferromagnets are appealing for use in future memory and computing devices, combining small size and fast motion, but creating, stabilizing, and observing them remains a challenge. Here, Juge et al demonstrate the stabilization and current and light induced nucleation of skyrmions in a synthetic antiferromagnet, observing the magnetization texture in each layer using X-ray magnetic microscopy.

In this Review, the authors present a roadmap towards achieving consensus on development, analysis and interpretation of single-cell transcriptomics data in adipose tissue, including discussion of roadblocks, best practices and ideal cell-type markers for annotation of adipose tissue cell types in mice and humans.

An antimatter hypernucleus formed by an anti-lambda hadron, an antiproton and two antineutrons was observed through its two-body decay after production in ultrarelativistic heavy-ion collisions.

Heart atria produce a large pool of calcitonin (previously well-recognized as a thyroid-secreted hormone with roles in calcium and bone metabolism) that in the heart acts as a paracrine signal controlling atrial fibrosis and fibrillation.