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The role of antibiotic-derived mycobacterial vesicles in tuberculosis pathogenesis

Pulmonary tuberculosis (TB) causes progressive and irreversible damage to lung tissue, a damage that may not fully resolve after treatment. Mycobacterial vesicles (MVs), which are poorly understood, may contribute to TB pathology. This study investigated the effects of stress, such as treatment with conventional TB antibiotics rifampicin, isoniazid, ethambutol, or treatment with an antimycobacteri

Geometric Symmetry Breaking and Nonlinearity Can Increase Thermoelectric Power

Direct thermal-to-electric energy converters typically operate in the linear regime, where the ratio of actual maximum power relative to the ideal maximum power, the so-called fill factor (FF), is 0.25. Here, we show, based on fundamental symmetry considerations, that the leading order nonlinear terms that can increase the FF require devices with broken spatial symmetry. Studying nonlinear, thermo

The T cell response to SARS-CoV-2 mRNA vaccine in adults with high exposure to perfluoroalkyl substances from Ronneby, Sweden

BACKGROUND: Perfluoroalkyl substances (PFAS) have been associated with impaired antibody levels after childhood vaccinations and immunosuppressive effects in animals. However, the in vivo effects of PFAS on antigen specific human T cell responses have not been investigated in adults. In Ronneby, Sweden, the drinking water of one of the water works was previously highly contaminated with primarily

Ion Migration and Redox Reactions in Axial Heterojunction Perovskite CsPb(Br1-xClx)3 Nanowire Devices Revealed by Operando Nanofocused X-ray Photoelectron Spectroscopy

Metal-halide perovskites (MHPs) have gained substantial interest in the energy and optoelectronics field. MHPs in nanostructure forms, such as nanocrystals and nanowires (NWs), have further expanded the horizons for perovskite nanodevices in geometry and properties. A partial anion exchange within the nanostructure, creating axial heterojunctions, has significantly augmented the potential applicat

Amyloids and Micelles : Self-assembly and co-assembly of Abeta and gangliosides

Extracellular plaques in Alzheimer’s disease contain Aβ peptides and ganglioside lipids such as GM1. Aβ monomers self-assemble into beta-sheet-rich fibrils when their concentration exceeds solubility, while GM1 monomers form spherical micelles above their critical concentration. This study examines the self-assembly of Aβ in the first two papers and its co-assembly with GM1 in the last two. In Pap

In Situ Manipulation of Growth Mechanisms in the Vapor–Solid–Solid Growth of GaP Nanowires

Vapor–solid–solid (VSS) growth of III-V semiconductor nanowires (NWs) has long been considered an alternative for the vapor–liquid–solid (VLS) growth mode, with the potential to avoid the incorporation of deep-level impurities into semiconductors and to form compositionally abrupt interfaces. Most research however indicates that VSS growth has a much lower growth rate than observed in the VLS grow

Agonist antibody to guanylate cyclase receptor NPR1 regulates vascular tone

Heart failure is a leading cause of morbidity and mortality1,2. Elevated intracardiac pressures and myocyte stretch in heart failure trigger the release of counter-regulatory natriuretic peptides, which act through their receptor (NPR1) to affect vasodilation, diuresis and natriuresis, lowering venous pressures and relieving venous congestion3–8. Recombinant natriuretic peptide infusions were deve

Determination of the conduction and valence band offsets at the Co3O4/3C-SiC p-n heterojunction

The band offsets of semiconductor heterojunctions are critical parameters for the design of electronic and optoelectronic devices. In this work, we report the fabrication of a Co3O4/3C-SiC p-n heterojunction and the determination of the conduction band and valence band offsets at the Co3O4/3C-SiC heterojunction. Our results reveal that the Co3O4/3C-SiC p-n heterojunction exhibits a type-II band al

Chromosome-scale genome assembly reveals how repeat elements shape non-coding RNA landscapes active during newt limb regeneration

Newts have large genomes harboring many repeat elements. How these elements shape the genome and relate to newts' unique regeneration ability remains unknown. We present here the chromosome-scale assembly of the 20.3 Gb genome of the Iberian ribbed newt, Pleurodeles waltl, with a hitherto unprecedented contiguity and completeness among giant genomes. Utilizing this assembly, we demonstrate conserv

Lipid-induced condensate formation from the Alzheimer’s Aβ peptide triggers amyloid aggregation

The onset and development of Alzheimer’s disease is linked to the accumulation of pathological aggregates formed from the normally monomeric amyloid-β peptide within the central nervous system. These Aβ aggregates are increasingly successfully targeted with clinical therapies at later stages of the disease, but the fundamental molecular steps in early stage disease that trigger the initial nucleat

Cost-effectiveness of de-escalated molecular subtype dependent use of neoadjuvant chemotherapy in patients with muscle-invasive bladder cancer in a Swedish setting

Background: Guidelines recommend neoadjuvant chemotherapy (NAC) and radical cystectomy (RC) for muscle-invasive bladder cancer (MIBC). Current recommendations do not consider genomic profiles, although the Basal/Squamous (Ba/Sq) subtype is less likely to respond to NAC compared to Urothelial-like (Uro) and Genomically Unstable (GU) subtypes. The aim of this study is to perform cost-effectiveness a

Influence of Fuel and Technology on Particle Emissions from Biomass Cookstoves─Detailed Characterization of Physical and Chemical Properties

Globally, 3 billion people rely on solid biomass fuel for their everyday cooking, most often using inefficient cooking practices, leading to high exposure levels of household air pollution. This is subsequently associated with negative health and climate impact. Further, the inefficient use of biomass fuels applies pressure on natural forests, resulting in deforestation, loss of biodiversity, and

2D surface optical reflectance for use in harsh reactive environments

In recent years, studies of surfaces at more realistic conditions has advanced significantly, leading to an increased understanding of surface dynamics under reaction conditions. The development has mainly been due to the development of new experimental techniques or new experimental approaches. Techniques such as High Pressure Scanning Tunneling/Force Microscopy, Ambient Pressure x-ray Photo emis

Estimation of the absorbed dose in simultaneous digital breast tomosynthesis and mechanical imaging

Purpose: Use of mechanical imaging (MI) as complementary to digital mammography (DM), or in simultaneous digital breast tomosynthesis (DBT) and MI - DBTMI, has demonstrated the potential to increase the specificity of breast cancer screening and reduce unnecessary biopsies compared with DM. The aim of this study is to investigate the increase in the radiation dose due to the presence of an MI sens

Simulation of heterogeneity within breast lesions based upon Perlin noise

Steadily increasing use of computer-generated models sets high demands on the realistic representation of breast tissue and abnormalities. Previously, we demonstrated the use of Perlin noise to simulate breast lesions. Now, we expand the previous model by simulating heterogeneous lesion composition. We demonstrate a new approach to simulating 3D soft tissue lesions, with additional benefits of Per

Neonicotinoid insecticide causes multigenerational impairment of inducible antipredator defenses in Daphnia

Nowadays organisms encounter not only natural challenges from predators but also significant anthropogenic stressors, such as insecticides, which can profoundly disrupt their normal growth and behavior. However, the knowledge on their potential interactions remains largely unknown, particularly regarding how insecticides may affect predator-prey interactions and prey responses across multiple gene

Image analysis optimization for nanowire-based optical detection of molecules

Semiconductor nanowires can enhance the signal of fluorescent molecules, thus significantly improving the limits of fluorescence detection in optical biosensing. In this work, we explore how the sensitivity can further be enhanced through "digital"detection of adequately spaced vertically aligned nanowires, employing single-emitter localization methods, and bright-field microscopy. Additionally, w

Low-fibre diet is associated with high-risk coronary plaque features

AIMS: Diet is a determinant of cardiovascular diseases (CVD) with coronary disease as predominant cause of pre-mature death. To analyse how diet was associated with coronary atherosclerosis, including plaque features.METHODS AND RESULTS: The cross-sectional population-based study using data from the Swedish CArdioPulmonary BioImage Study (SCAPIS) included 24 079 adults aged 50-64 years, recruited

Decoding sex differences in human immunity through systems immunology

Immune function varies widely across humans. Biological sex is a key factor underlying human immune variability, with men presenting with more severe infections and increased cancer rates, while women exhibit higher vaccine responses and prevalence of autoimmunity. Intrinsic biological sex differences arise from varying contributions of chromosomal sex, and sex hormone sensing and downstream signa