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Retinol, a form of vitamin A, plays an essential role in many biological processes throughout the human lifespan. Here the authors identify genetic variants that influence the level of circulating retinol and use this information to better understand how retinol impacts human health.

A population-scale map of gene expression in primary human microglia provides a systematic exploration of microglia diversity and how age, sex, pathology, cortical anatomy and common germline genetic variation influence the microglia transcriptome.

Colocalization of regulatory quantitative trait loci from the BLUEPRINT project with genetic association data aids fine-mapping of putative causal variants for 12 immune-mediated diseases.

Malaria protein Pfs48/45 is a promising transmission-blocking antigen targeted by antibodies. Here, the authors determine the structure of its transmission-blocking epitope I, and generate a humanized monoclonal antibody that binds Pfs48/45 with high affinity.

The association between certain mitochondrial DNA variants and increased risk of late-onset diseases in humans could be explained by a direct role of mitochondrial DNA in the regulation of cellular proteostasis.

Gaining mechanistic insight into the microbiological and immunological factors that are associated with spontaneous preterm birth is important for the development of prevention strategies. Here authors show that the complement system in conjunction with specific vaginal microbial and associated immunological changes are contributing to this condition.

The Women in Chemistry conference held on International Women’s Day was an opportunity to celebrate the varied careers of female chemists and showcase every step along the way. Suze Kundu emphasizes that successes, failures — and everything in between — are all intrinsically valuable.

Filamentous cable bacteria conduct electrical currents over centimeter distances through fibers embedded in their cell envelope. Here, Boschker et al. show that the fibers consist of a conductive core containing nickel proteins that is surrounded by an insulating protein shell.

The direct measurement of the QCD dead cone in charm quark fragmentation is reported, using iterative declustering of jets tagged with a fully reconstructed charmed hadron.

De novo syntheses of 1,2-arylheteroaryl ethanes, key scaffolds in drug discovery, are challenging, typically relying on pre-functionalized synthons, harsh conditions and multi-step processes. Now a modular assembly of arenes, ethylene and heteroarenes yields diverse drug-like 1,2-arylheteroaryl ethanes, highlighting the importance of radical polarity matching in selective multi-component couplings.

Measurements of the inelastic cross section of anti-³He allow the estimation of the transparency of the Milky Way to the propagation of these light antinuclei produced in either cosmic-ray collisions or annihilation of dark-matter particles.

Genome-wide association analysis of an improved telomere length score, calculated from quantitative PCR and whole-genome sequencing measurements in 462,666 individuals in the UK Biobank, identifies novel genes and variants underlying this trait.

Single-nucleus ATAC-seq characterization of chromatin accessibility in human coronary artery disease samples identifies cell-type- and state-specific regulatory mechanisms underlying disease risk, highlighting the roles of TBX2 and PRDM16.

Retinal pigment epithelial cells are identified as a local source of insulin in the retina, which is stimulated by phagocytosis of photoreceptor outer segments and starvation and has the potential to influence retinal physiology and disease.

Single-cell chromatin profiling of different brain regions identifies cell-type-specific regulatory elements, and helps to predict functional SNPs for Alzheimer’s and Parkinson’s diseases.

The measurement of the total cross-section of proton–proton collisions is of fundamental importance for particle physics. Here, the first measurement of the inelastic cross-section is presented for proton–proton collisions at an energy of 7 teraelectronvolts using the ATLAS detector at the Large Hadron Collider.

Correlations in momentum space between hadrons created by ultrarelativistic proton–proton collisions at the CERN Large Hadron Collider provide insights into the strong interaction, particularly the short-range dynamics of hyperons—baryons that contain strange quarks.

PU.1 is a master regulator of myeloid development but its role in disease-relevant neutrophils is not well known. Here, the authors look at primary neutrophils from a human population and find that genetic variants affecting binding of PU.1 are associated with cell count and disease susceptibility.

Premature infants are vulnerable to hypoxia and thus white matter injury, especially in the cerebellum, which develops during late gestation. Here, the authors test the effects of perinatal hypoxia on motor performance and rescue behavioral deficits using the GABA reuptake inhibitor Tiagabine.

The SARS-CoV-2 Alpha variant suppresses innate immune responses more effectively than isolates of first-wave SARS-CoV-2, and this is a result of mutations outside of the spike coding region that lead to upregulation of viral innate immune antagonists.

Triggering and sustaining fusion reactions — with the goal of overall energy production — in a tokamak plasma requires efficient heating. Radio-frequency heating of a three-ion plasma is now experimentally shown to be a potentially viable technique.

MTAG is a new method for joint analysis of summary statistics from genome-wide association studies of different traits. Applying MTAG to summary statistics for depressive symptoms, neuroticism and subjective well-being increased discovery of associated loci as compared to single-trait analyses.

Defects in LC3-associated phagocytosis in mice are shown to result in systemic lupus erythematosus-like disease; dying cells are engulfed but not degraded in LAP-deficient mice, resulting in increased serum levels of autoantibodies and inflammatory cytokines, and evidence of kidney disease.

H2B monoubiquitination is implicated in oncogenesis. Here, the authors show that UBR7 PHD finger is a H2BK120 monoubiquitin ligase that acts a tumour suppressor in breast cancer by suppressing gene expression for EMT, while promoting expression of CDH4 which restrain WNT/β-cat pathway.

Autophagocytic disposal of mitochondria (mitophagy) is important for regulating inflammation. Kanneganti and colleagues show that RIP2 kinase–initiated mitophagy is critical for dampening virally triggered immunopathology.

Gene discovery and polygenic predictions from a genome-wide association study of educational attainment in 1.1 million individuals.

Exercise is associated with biogenesis and removal of dysfunctional mitochondria. Here the authors use a mitochondrial reporter gene to demonstrate the occurrence of mitophagy following exercise in mice, and show this is dependent on AMPK and ULK1 signaling.

AMPK is involved in sensing of metabolic stress. The authors show that the autophagy initiator ULK1 phosphorylates β1-Ser108 on the regulatory β1-subunit, sensitizing AMPK to allosteric drugs, and activates signaling pathways that appear independent of Thr172 phosphorylation in the kinase activation loop.

An engineered version of the mechanosensitive protein talin was used as a monomer in combination with a synthetic chemical crosslinker to form a hydrogel. This shock-absorbing material is shown to capture and preserve projectiles fired at 1.5 km s⁻¹.